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+The Project Gutenberg eBook of The Apartment Next Door, by William Andrew Johnston
+
+This eBook is for the use of anyone anywhere in the United States and
+most other parts of the world at no cost and with almost no restrictions
+whatsoever. You may copy it, give it away or re-use it under the terms
+of the Project Gutenberg License included with this eBook or online at
+www.gutenberg.org. If you are not located in the United States, you
+will have to check the laws of the country where you are located before
+using this eBook.
+
+Title: The Apartment Next Door
+
+Author: William Andrew Johnston
+
+Release Date: February 23, 2004 [eBook #11240]
+[Most recently updated: November 28, 2022]
+
+Language: English
+
+Character set encoding: UTF-8
+
+Produced by: Juliet Sutherland, Charlie Kirschner and the Online Distributed Proofreading Team
+
+*** START OF THE PROJECT GUTENBERG EBOOK THE APARTMENT NEXT DOOR ***
+
+
+
+
+The Apartment Next Door
+
+by William Johnston
+
+
+AUTHOR OF
+THE HOUSE OF WHISPERS, LIMPY, ETC.
+
+ILUSTRATIONS BY
+ARTHUR WILLIAM BROWN
+
+
+1919
+
+
+
+
+TO THAT MARVELLOUS SCHEHERAZADE
+CAROLYN WELLS HOUGHTON
+THE AUTHOR, IN ENVIOUS ADMIRATION,
+DEDICATES THIS VOLUME
+
+
+
+
+CONTENTS
+
+ CHAPTER I. THE FACE OF HATE
+ CHAPTER II. THE ADDRESS ON THE CARD
+ CHAPTER III. “MR. FLECK”
+ CHAPTER IV. THE CLUE IN THE BOOK
+ CHAPTER V. ON THE TRAIL
+ CHAPTER VI. THE MISSING MESSAGE
+ CHAPTER VII. THE WOMAN ON THE ROOF
+ CHAPTER VIII. THE LISTENING EAR
+ CHAPTER IX. THE PURSUIT
+ CHAPTER X. CARTER’S DISCOVERY
+ CHAPTER XI. JANE’S ADVENTURE
+ CHAPTER XII. PUZZLES AND PLANS
+ CHAPTER XIII. THE SEALED PACKET
+ CHAPTER XIV. THE MOUNTAIN’S SECRET
+ CHAPTER XV. THE HOUSE IN THE WOODS
+ CHAPTER XVI. THE ATTACK ON THE HOUSE
+ CHAPTER XVII. SOMETHING UNEXPECTED
+ CHAPTER XVIII. WHAT THE PACKET CONTAINED
+
+
+
+
+ LIST OF ILLUSTRATIONS
+
+ She could not bring herself to tell him, the man she loved, the thing she knew he was.
+ More than likely, she alone in all the world—knew who the murderer was.
+ Had he been standing there listening? How much had he heard?
+ “Thank God,” he cried. “Jane, dear, tell me you are not hurt!”
+
+
+
+
+THE APARTMENT NEXT DOOR
+
+
+
+
+CHAPTER I
+THE FACE OF HATE
+
+
+It was three o’clock in the morning. Along a deserted pavement of
+Riverside Drive strode briskly a young man whose square-set shoulders
+and erect poise suggested a military training. His coat, thrown
+carelessly open to the cold night wind, displayed an expanse of white
+indicative of evening dress. As he walked his heels clicked sharply on
+the concrete with the forceful firm tread of the type which does things
+quickly and decisively. The intense stillness of the early morning
+hours carried the sound in little staccato beats that could be heard
+blocks away. A few yards behind him, moving furtively and noiselessly,
+almost as if he had been shod with rubber, crept another figure, that
+of a stocky, broad-shouldered man, who despite his bulk and weight
+moved silently and swiftly through the night, a soft brown hat drawn
+low over his eyes as if he desired to avoid recognition.
+
+All at once the man ahead paused suddenly and stood looking out over
+the river. Between the Drive and the distance-dimmed lights of the
+Jersey shore there rose like great silhouettes the grim figures of
+several huge steel-clad battleships, their fighting-tops lost in the
+shadows of the opposite hills. Beside them, obscure, with no lights
+visible, lay the great transports that in a few hours, or in a few
+days—who knew—they would be convoying with their precious cargo of
+fighting men across the war-perilled Atlantic.
+
+It was on the forward deck of one of these great battleships that the
+eyes of the man ahead were riveted. His shadower, evidently much
+concerned in his actions, crept slowly and stealthily forward,
+approaching nearer and still nearer without being observed.
+
+A dim light became visible on the warship’s deck and then vanished.
+Still the man stood there watching, a puzzled, anxious look coming into
+his face. Quickly the light reappeared—two flashes, a pause, two
+flashes, a pause, and then a single flash. It was such a light as might
+have been made by a pocket torch, a feeble ray barely strong enough to
+carry to the adjacent shore, a light that if it had been flashed from
+some sheltered nook by the boat davits might not even have attracted
+the attention of the officer on the bridge nor of the ship’s watchmen.
+Manifestly it was a signal intended for the eyes of some one on shore.
+
+A muttered imprecation escaped the lips of the watcher on the Drive. He
+stood there, straining his eyes toward the ship as if expecting a
+following signal, then he turned and gazed aloft at the windows of the
+apartment houses lining the driveway to see if some answering signal
+flashed back.
+
+And in the shadow of the buildings, hardly ten feet away but half
+sheltered by a doorway, stood his sinister pursuer, motionless but
+alert.
+
+For perhaps a quarter of an hour they held their positions. At last the
+man who was being followed shrugged his shoulders impatiently and set
+off again down the Drive, from time to time turning his head to watch
+the spot from which the signal had been flashed. Behind him, as
+doggedly as ever and now a little closer, crept the man with the hat
+over his eyes.
+
+Regardless of the lateness of the hour, at a third-floor window of one
+of the great apartment houses lining the Drive sat a young girl in her
+nightrobe, with her two great black braids flung forward over her
+shoulders, about which she had placed for warmth’s sake a quilted
+negligee. Jane Strong was far too excited to sleep. An hour before she
+had come in from a wonderful party. The music still was playing mad
+tunes in her ears. The excitement, the coffee, the spirited tilts at
+arms with her many dancing partners had set her brain on fire. Sleep
+seemed impossible as yet.
+
+Looking out at the river—a favorite occupation of hers—the sight of the
+warships looming up through the darkness reminded her once more that
+nearly all of the men with whom she had been dancing had been in
+uniform, bringing into prominence in the jumble of ideas in her
+over-stimulated brain, almost as a new discovery, the fact that her
+country was really engaged in war, that the men, the very men whom she
+knew best, were most of them fighting, or soon going to fight in a
+foreign land. Suddenly she found herself vaguely wishing that there was
+something she might do, something for the war, something to help. Would
+it not be splendid, she thought, to go to France as a Red Cross nurse,
+to be over there in the middle of things, where something exciting was
+forever going on. Life—the only life she knew about, existence as the
+petted daughter of well-to-do parents in a big city—had, ever since the
+war had begun, seemed strangely flat and uninteresting. Parties, to be
+sure, were fun but hardly any one was giving parties this year. The
+Stantons had entertained only because their lieutenant son was going
+abroad soon, and they wished him to have a pleasant memory to carry
+with him. Most of the interesting men she knew already were gone, and
+now Jack Stanton was going. How she wished she could find some way of
+getting into the war herself.
+
+The sound of approaching footsteps caught her ear. Wondering who was
+abroad at that hour of the night she pushed up the window softly and
+looked out. In the distance she saw a man approaching, striding briskly
+toward her. As she stood idly watching him and wondering about him,
+suddenly she caught her breath. She had sighted the other figure
+behind, the man creeping stealthily after him. Nearer and nearer they
+came. In tense expectation she waited, sensing some unusual
+development. They had reached her block now. Almost directly under her
+window the man in advance paused to light a cigarette. His shadow
+paused, too, but some incautious movement on his part must have
+betrayed him.
+
+Match in hand, the man in advance stood stock-still, his whole figure
+taut, poised, alert, in an attitude of listening. All at once he
+wheeled about, discovering the man close behind him. He sprang at once
+for his pursuer. The latter took to his heels, dashing around the
+corner, the man whom he had been following now hot at his heels.
+
+All trembling with nervous excitement Jane leaned out the window to
+listen and watch. She could hear the running feet of both men just
+around the corner. What was happening? The running feet came to an
+abrupt stop. There was a half-smothered cry, a sharp thud, like a body
+striking the pavement, and then came silence. Puzzled, vaguely alarmed,
+a hundred questions came pouring into her brain and lingered there
+disturbingly. Why had one of these men been shadowing the other? Why
+had the pursuer suddenly become the pursued? Why had the running
+footsteps come to such an abrupt stop? What was the noise she had
+heard? What was happening around the corner? Her fears rapidly growing,
+she was on the point of arousing her family. But what excuse should she
+give? What could she tell them? After all she had merely seen two men
+run up the side street. More than likely they would only laugh at her,
+and she did not like being laughed at. Besides, Dad was always cross
+when suddenly awakened. Undecided what to do she stood at the window,
+peering into the night.
+
+Five minutes, ten minutes she stood there in tremulous perplexity. A
+sense of impending tragedy seemed to have laid hold of her. A black
+horror seized her and held her at the window. Something terrible,
+something tragic, she was sure must have happened. Mustering up her
+strength and trying to calm her fears she was about to put down the
+window when she heard footsteps once more approaching. Straining her
+ears to listen she discovered the sound was that of the steps of a
+man—one man—approaching from around the corner. As she watched he
+turned into the Drive and came on toward her. She shrank back a little,
+fearful of being seen even though her room was in darkness. It was the
+first man. She recognized him at once by his top-hat and his evening
+clothes. He was walking even more briskly than before, almost running.
+There was no sign anywhere of the shorter thick-set man who had been
+following him. Something in the appearance of the figure in the street
+below struck her all at once as vaguely familiar. She wondered if it
+could be any one she knew.
+
+Presently he came directly opposite the light on the other side of the
+Drive so that it shone for an instant full on his face. Jane looked and
+shuddered. Never in all her life had she seen any man’s countenance so
+convulsed, not with pain, but with a soul-terrifying expression of
+hate, of virulent, murderous hate.
+
+Distorted though the man’s face was with such bitter frightfulness, she
+recognized him, not as any one she knew, but merely as one of the
+tenants in the same apartment building.
+
+“It’s one of the people next door,” she said to herself and in
+verification of her identification, as he approached the building, the
+young man cast a swift glance over his shoulder, and then, as if
+satisfied that he was unobserved, dashed hurriedly in at the entrance.
+
+Jane, more than ever wrought up with fear and dread of she knew not
+what, sprang hastily into bed and drew the covers about her shoulders.
+As yet she did not lie down but shiveringly waited. Presently she heard
+the elevator stop. She heard the key opening the door of the next
+apartment. In a few minutes she heard the man moving about his bedroom,
+separated from her own room by a mere six inches of plaster and paper,
+or whatever it is that apartment-house walls are made of.
+
+What could have happened? She was certain that something terrible had
+occurred in which the young man next door had played a tragic, perhaps
+even a criminal part. She tried in vain to conjecture what circumstance
+could have been responsible for the look of hatred she had seen on his
+face. She wondered what had been the fate of the man who had been
+following him. Had they quarrelled and fought? What could have been the
+subject of their quarrel?
+
+She tried to summarize what she knew about the people next door, and
+was amazed to discover how little she had to draw upon. As in most New
+York apartment houses so in Jane’s home all the tenants were utter
+strangers to each other, one family not even knowing the names of any
+of the others. Occasionally, to be sure, one rather resentfully rode up
+or down in the elevator with some of the other tenants but always
+without noticing or speaking to them. Jane’s family had been living in
+the building for five years, and of the twenty other families they knew
+the names of only two, having learned them by accident rather than
+intention. About the people next door Jane now discovered that she
+really knew nothing at all. There was a man with a gray beard who never
+took off his hat in the elevator, and there was the handsome young chap
+whom she had just seen entering. But what their names were, or their
+business, or how long they had lived there, or whether they were father
+and son, what servants they kept, or whether either or both of them was
+married—these were questions she could have answered as readily as if
+they had been living in Dallas, Texas, or Seattle, Washington, as in
+the next apartment. Quickly she found that she really knew nothing at
+all about them except—she could not recall that any one had told her or
+how she had got the impression—she was almost certain they were some
+sort of foreigners.
+
+Just when it was that her troubled thoughts were succeeded by even more
+troubled dreams she was not aware, but it was noon the next day when
+she was awakened by the maid bringing in her breakfast tray.
+
+“Terrible, Miss Jane, wasn’t it,” said the servant, “about that suicide
+last night, almost under our noses, you might say.”
+
+“Suicide!” cried the girl, at once wide-awake and interested “What
+suicide?”
+
+“A man was found dead in the side street right by our building with a
+revolver in his hand.”
+
+“What sort of a looking man was he?”
+
+“I didn’t see him,” said the maid, almost regretfully. “He was taken
+away before I was up. Cook tells me it was the milkman found him and
+notified the police.”
+
+“Who was he?”
+
+“Nobody round here knows a thing about him. He shot himself through the
+heart and us sleeping here an’ not knowing anything at all about it.”
+
+“But didn’t any one know who he was?”
+
+“Never a soul. The superintendents from all the buildings round took a
+look at the body, but none of them knew him. It wasn’t anybody that
+lived around here. There’s a piece in the afternoon papers about it.”
+
+“Get me a paper at once,” directed the girl.
+
+Eagerly she read the paragraph the maid pointed out. It really told
+very little. The body of a plainly dressed man had been found on the
+sidewalk. There was a revolver in his hand with one cartridge
+discharged, and the bullet had penetrated his heart. He had been a
+short stalky man and had worn a brown soft hat. There was nothing about
+his clothing to identify him, even the marks where his suit had been
+purchased having been removed. He had not been identified. The police
+and the coroner were satisfied that it was a case of suicide.
+
+Suicide!
+
+Jane, reading and rereading the paragraph, recalled the unusual
+occurrence she had witnessed the night before. Vividly there stood out
+before her the strange panorama she had seen, the tall young man in
+evening clothes, and the short stalky man with the soft hat who had
+followed him. The two of them had run around the corner. Only one of
+them had come back. Unforgettably there was imprinted in her memory the
+satanic expression on the young man’s face as he had hastened into the
+house. No wonder he had cast such an anxious glance behind him as he
+entered.
+
+Suicide!
+
+Jane was certain that it was no suicide. She remembered the curious
+thud she had heard from around the corner, like a body falling to the
+pavement. She recalled that it must have been at least ten minutes
+before the other man reappeared, time enough to have placed the
+revolver in the dead man’s hand, time enough even to have removed all
+possible means of identification from the man’s clothing.
+
+
+Illustration: More than likely, she alone in all the world—knew who the
+murderer was.
+
+
+It was not suicide, Jane felt certain. It was murder! Slowly but
+oppressingly, overwhelmingly, it dawned on her not only that in all
+probability a murder had been committed, but also that she—more than
+likely, she alone in all the world—knew who the murderer was, who it
+must have been—the young man next door.
+
+
+
+
+CHAPTER II
+THE ADDRESS ON THE CARD
+
+
+Impatiently Jane looked at her wrist watch. It lacked an hour of the
+time when she was to meet her mother at the Ritz for tea. Her nerves
+still all ajangle from excitement and worry over the morning’s tragedy,
+and her own accidental secret knowledge of certain aspects of the case
+had made it wholly impossible for her to do anything that day with even
+simulated interest.
+
+She had been debating with herself whether or not to confide to her
+mother the story of the tragic tableau of which she had been an
+accidental witness, when Mrs. Strong had dashed into her bedroom to
+give her a hurried peck on the cheek and to say that she was off to
+luncheon and the matinée with Mrs. Starrett.
+
+“You’re not looking well to-day, dear,” her mother had said. “Stay in
+bed and rest and join us for tea if you like.”
+
+Before she had opportunity to tell what she had seen, her mother was
+gone, but Jane had found it impossible to obey her well-meant
+injunction. She rose and dressed, her mind busy all the while with the
+problem of what her duty was. As she donned her clothing she paused
+from time to time to listen for sounds from the next apartment.
+
+What was her neighbor doing now? Had he read of the discovery of the
+man’s body in the street? Perhaps he had fled already? Not a sound was
+to be heard there. He did not look in the least like what Jane imagined
+a murderer would, yet certainly the circumstances pointed all too
+plainly to his guilt. She had seen two men dash around the corner, one
+in pursuit of the other. One of them had come back alone. Not long
+afterward a body—the body of the other man—had been found with a bullet
+in his heart. It must have been a murder.
+
+What ought she to do about it? Was it her duty to tell her mother and
+Dad about what she had seen? Mother, she knew, would be horrified and
+would caution her to say nothing to any one, but Dad was different. He
+had strict ideas about right and justice. He would insist on hearing
+every word she had to tell. More than likely he would decide that it
+was her duty to give the information to the authorities. Her face
+blanched at the thought. She could not do that. She pictured to herself
+the notoriety that would necessarily ensue. She saw herself being
+hounded by reporters, she imagined her picture in the papers, she heard
+herself branded as “the witness in that murder case,” she depicted
+herself being questioned by detectives and badgered by lawyers.
+
+No, she decided, it would be best for her never to tell a soul, not
+even her parents. In persistent silence lay her safest course. After
+all she had not witnessed the commission of the crime. She was not even
+sure that the man found dead had been one of the two she had watched
+from her window. If she saw the body she would not be able to identify
+it. She was not even certain in her own mind that the man next door had
+done the shooting, however suspicious his actions may have appeared to
+her. Besides, he did not look in the least like a murderer. He was too
+well-dressed.
+
+In an effort to put the whole thing out of her mind she tried to read,
+but was unable to keep her thoughts from wandering. She sat down at the
+piano, but music failed to interest or soothe her. She mussed over some
+unanswered notes in her desk but could not summon up enough
+concentration of mind to answer them. Restless and fidgety, unable to
+keep her thoughts from the unusual occurrences that had disturbed her
+ordinarily too peaceful life, she decided to take a walk until it was
+time to keep her appointment. Something—force of habit probably—led her
+to the shopping district. With still half an hour to kill, she went
+into a little specialty shop to examine some knitting bags displayed in
+the window.
+
+“Why don’t you knit as all the other girls are doing?” was her father’s
+constant suggestion every time she asserted her desire to be doing
+something in the war.
+
+“There’s no thrill in knitting,” she would answer. “Fix it, Dad, so
+that I can go to France as a Red Cross nurse or as an ambulance driver,
+won’t you? I want some excitement.”
+
+Always he had refused to consent to her going, insisting that France in
+wartime was no place for an untrained girl.
+
+“If I can’t go myself, I certainly am not going to send any knitting,”
+she would spiritedly answer, but several times recently the sight of
+such charming looking knitting bags had tempted her into almost
+breaking her resolution.
+
+Inside the shop she found nothing that appealed to her, and contented
+herself with buying some toilet articles. As she made her purchases she
+noticed, almost subconsciously, a man standing near, talking with one
+of the shopgirls—a middle-aged man with a dark mustache.
+
+“The address, please,” said the girl, who had been waiting on her.
+
+“Miss Strong,” she answered, giving the number of the apartment house
+on Riverside Drive.
+
+She recalled afterward that as she mentioned the number the man
+standing there had turned and looked sharply at her, but she thought
+nothing of it. Her father’s name was well known and he had many
+acquaintances in the city. More than likely, she supposed, this man was
+some friend of her father who had recognized the name.
+
+She lingered a few moments at some of the other counters, aimlessly
+inspecting their offerings, and at last, with ten minutes left to reach
+the Ritz, emerged from the store. She was amazed to see the man who had
+been inside now standing near the entrance, and something within warned
+her that he had been waiting to speak to her. As she attempted to pass
+him quickly, he stepped in front of her, blocking her path, but raising
+his hat deferentially.
+
+“I beg your pardon, Miss Strong,” he said, “may I have a word with
+you?”
+
+Compelled to halt, she looked at him both appraisingly and resentfully.
+There was nothing offensive nor flirtatious in his manner, and he
+seemed far too respectably dressed to be a beggar. He was almost old
+enough to be her father, and besides there was about him an indefinable
+air of authority that commanded her attention. She decided that,
+unusual as his request appeared, she would hear what he had to say.
+
+“What is it?” she asked, trying to assume an air of hauteur but without
+being able wholly to mask her curiosity.
+
+“You are an American, aren’t you?” he asked abruptly.
+
+“Of course.”
+
+“A good American?”
+
+“I hope so.” She decided now that he must be one of the members of some
+Red Cross fund “drive,” or perhaps an overenthusiastic salesman for
+government bonds. “But I don’t quite understand what it is that you
+wish.”
+
+“I can’t explain,” said her questioner, “but if you really are a good
+American and you’d like to do your country a great service—an important
+service—go at once to the address on this card.”
+
+She took the slip of white pasteboard handed her. On it was written in
+pencil “Room 708.” The building was a skyscraper down-town.
+
+“What is it?” she asked half indignantly, “a new scheme to sell bonds?”
+
+“No, no, Miss Strong,” he cried, “it is nothing like that. It is a
+great opportunity to do an important service for America.”
+
+“How did you know my name?”
+
+“I heard you give it to the clerk just now.”
+
+“And why,” she inquired with what she intended to be withering sarcasm,
+“have I been selected so suddenly for this important work?”
+
+“I heard the address you gave, that’s why,” he answered. “That’s what
+makes it so important that you should go to that number at once. Ask
+for Mr. Fleck.”
+
+“I can’t go,” she temporized. “I am on my way now to meet my mother at
+the Ritz.”
+
+“Go to-morrow, then,” he insisted. “I’ll see Mr. Fleck meanwhile and
+tell him about you.”
+
+Puzzled at the man’s unusual and wholly preposterous request, yet in
+spite of herself impressed by his evident sincerity, Jane turned the
+card nervously in her hand and discovered some small characters on the
+back; “K-15” they read.
+
+“What do those figures mean?” she asked.
+
+“I can’t tell you that. Mr. Fleck will explain everything. Promise me
+you will go to see him.”
+
+“Who are you?”
+
+“I can’t tell you that, yet.”
+
+“Who, then, is Mr. Fleck?”
+
+“He will explain that to you.”
+
+“What has my address to do with it? I can’t understand yet why you make
+this preposterous request of me.”
+
+“I tell you I can’t explain it to you, not yet,” the man replied, “but
+it’s because you live where you do you must go to see Mr. Fleck. It’s
+about a matter of the highest importance to your government. It is more
+important than life and death.”
+
+His last words startled her. They brought to her mind afresh the
+mysterious occurrence she had witnessed the night before and the
+equally mysterious death near her home. Had this man’s odd request any
+connection, she wondered, with what had happened there? The lure of the
+unknown, the opportunity for adventure, called to her, though prudence
+bade her be cautious.
+
+“I’ll ask my mother,” she temporized.
+
+“Don’t,” cried the man. “You must keep your visit to Mr. Fleck a secret
+from everybody. You mustn’t breathe a word about it even to your father
+and mother. Take my word for it, Miss Strong, that what I am asking you
+to do is right. I’ve two daughters of my own. The thing I’m urging you
+to do I’d be proud and honored to have either of them do if they could.
+There is no one else in the world but you that can do this particular
+thing. A word to a single living soul and you’ll end your usefulness.
+You must not even tell any one you have talked with me. See Mr. Fleck.
+He’ll explain everything to you. Promise me you’ll see him.”
+
+“I promise,” Jane found herself saying, even against her better
+judgment, won over by the man’s insistence.
+
+“Good. I knew you would,” said her mysterious questioner, turning on
+his heel and vanishing speedily as if afraid to give her an opportunity
+of reconsidering.
+
+Puzzled beyond measure not only at the man’s strange conduct but even
+more at her own compliance with his request, Jane made her way slowly
+and thoughtfully to the Ritz, where she found her mother and Mrs.
+Starrett had already arrived.
+
+As they sipped their tea the two elder women chatted complacently about
+the matinée, about their acquaintances, about other women in the
+tea-room and the gowns they had on, about bridge hands—the usual small
+talk of afternoon tea.
+
+To Jane, oppressed with her two secrets, all at once their conversation
+seemed the dreariest piffle. Great things were happening everywhere in
+the world, nations at war, men fighting and dying in the trenches of
+horror for the sake of an ideal, kings were being overthrown, dynasties
+tottering, boundaries of nations vanishing. Women, she realized, too,
+more than ever in history, were taking an active and important part in
+world affairs. In the lands of battle they were nursing the wounded,
+driving ambulances, helping to rehabilitate wrecked villages. In the
+lands where peace still reigned they were voting, speech-making,
+holding jobs, running offices, many of them were uniting to aid in
+movements for civic improvement, for better children, for the
+improvement of the whole human race.
+
+And here they were—here _she_ was, idling uselessly at the Ritz as she
+had done yesterday, last week, last month—forever, it seemed to her.
+The vague protest that for some time had been growing within her
+against the senselessness and futility of her manner of existence
+crystallized itself now into a determination no longer to submit to it.
+Courageously she was resolving that she would take the first
+opportunity to escape from this boresome routine of pleasure-seeking.
+She was wondering if the request that had been so unexpectedly made of
+her would prove to be her way out from her prison of desuetude.
+
+The talk of the two women with her drifted aimlessly on. Seldom was she
+included in it, save when her mother, nodding to some one she knew,
+would turn to say:
+
+“Daughter, there is Mrs. Jones-Lloyd.”
+
+What did she care about Mrs. Jones-Lloyd? What did she care about any
+of the people about them, aimless, pleasure-hunting drifters like
+themselves. Left to her own devices for mental activity her thoughts
+kept recurring to the surprising adventure she had had a few minutes
+before. Thoughtfully she pondered over the mysterious message that had
+been given to her. The man had said that it was a wonderful opportunity
+for her to do her country a great service. She wondered why he had been
+so secretive about it. She decided that she would investigate further
+and made up her mind to carry out his instructions. What harm could
+befall her in visiting an office building in the business district? At
+least it would be something to do, something new, something different,
+something surely exciting and, perhaps, something useful.
+
+It would be better, she decided, for the present at least, to keep her
+intentions entirely to herself. Any hint of her plans to her mother
+would surely result in permission being refused. The man certainly had
+seemed sincere, honest, and perfectly respectable, even if he was not
+of the sort one would ask to dinner. She made up her mind to go
+down-town to the address given the very first thing to-morrow morning.
+If anything should happen to her, she felt that she could always reach
+her father. His office was in the next block.
+
+The problem of making the mysterious journey without her mother’s
+knowledge bothered her not at all. As in the case of most
+apartment-house families, she and her mother really saw very little of
+each other, especially since she had become a “young lady.” Mrs. Strong
+went constantly to lectures, to luncheons, to bridge parties, to
+matinées with her own particular friends. Jane’s engagements were with
+another set entirely, school friends most of them, whose parents and
+hers hardly knew each other. Both she and her mother habitually
+breakfasted in bed, generally at different hours, and seldom lunched
+together. At dinner, when Mr. Strong was present, there were no
+intimacies between mother and daughter. The only times they really saw
+each other for protracted periods were when they happened to go
+shopping, or go to the dressmaker’s together, and then the subject
+always uppermost in the minds of both of them was the all-important and
+absorbing topic of clothes. Occasionally, Jane poured at one of her
+mother’s more formal functions, but for the most part the time of each
+was taken up in a mad, senseless hunt for amusement.
+
+Suddenly every thought was driven from Jane’s head. Her face went
+white, and with difficulty she managed to suppress an alarmed cry.
+
+“What is it, daughter?” asked her mother, noting her perturbation. “Are
+you feeling ill?”
+
+“A touch of neuralgia,” she managed to answer.
+
+“Too many late hours,” warned Mrs. Starrett reprovingly.
+
+“I’m afraid so,” said Mrs. Strong. “As soon as I’ve paid my check we’ll
+go.”
+
+“I’m perfectly all right now,” said Jane, controlling herself with
+effort, though her face was still white.
+
+The danger that she had feared had passed for the present at least.
+Glancing toward the entrance a moment before she had been terrified to
+see entering the black-mustached man who had accosted her a few moments
+before. Her one thought now had been that he had followed her here, and
+in a panic she was wondering how she should make explanations if he
+came up to their table and spoke. To her great relief he gave no
+intimation of having seen her, but settled himself into a chair near
+the door where he was half hidden from her by a great palm. Furtively
+she watched him, trying to divine his intention in having followed her
+there. Respectable enough though he was in appearance and garb, he did
+not seem in the least like the sort of man likely to be found at
+tea-time in an exclusive hotel. As she studied him she soon saw that
+his attention seemed to be riveted on some one sitting at the other
+side of the room. Wonderingly she let her eyes follow his, and once
+more it was with difficulty that she suppressed an excited gasp.
+
+There, across the room, calmly sipping some coffee, was the handsome
+young man from the next apartment—the man whom she had felt sure, or at
+least almost sure, was a murderer, about whom she had been wondering
+all day long, picturing him as a hunted criminal fleeing from the law.
+Chatting interestedly with him was another man, a young man in the
+uniform of a lieutenant in the navy.
+
+What did it all mean? Why was the black-mustached man watching them so
+intently? Her eyes turned back to him. He was still sitting there,
+leaning forward a little, his brows in a pucker of concentration, his
+eyes still fixed on the pair opposite. It looked almost as if he was
+trying to read their lips and tell what they were talking about.
+
+Jane thrilled with excitement. The black-mustached man, she decided,
+must be a detective. She recalled that he had said to her it was
+because she lived at the address she did that she was available for the
+mission for which he wanted her. Did he, she wondered, know about the
+mysterious death in the street outside their apartment house? Was that
+the reason he was spying on her neighbor? But what could be his motive
+in seeking to involve her in the matter?
+
+Unable to find satisfactory answers to her questions she gave herself
+up interestedly to studying the faces of the two young men across the
+room. Neither of them, she decided, could be much more than thirty. The
+face that only a few hours before she had seen utterly convulsed with
+bitter hate, now placid and smiling, was really an attractive one, not
+in the least like a murderer’s. Frank, alert blue eyes looked out from
+under an intellectual forehead. A small military mustache lent emphasis
+to a clean-shaven, forceful jaw. His flaxen hair was neatly trimmed.
+His linen and clothing were immaculate, and the hand that curved around
+his cup had long, tapering, well-manicured fingers. The cut of his
+clothing, his manners, everything about him seemed American, yet there
+was an indefinable something in his appearance that suggested foreign
+birth or parentage, probably either Swedish or German. The man with him
+was smaller and slighter. Despite the air of importance his uniform
+gave him, it was palpable that he was the less forceful of the two, his
+handsome face, it seemed to Jane, betraying weakness of character and a
+fondness for the good things of life.
+
+“Come, daughter,” said Mrs. Strong, rising, “we must be going.”
+
+So intent was Jane on her study of the two men that her mother had to
+speak twice to her.
+
+“Yes, mother,” she answered obediently, rising hastily as the hint of
+annoyance in her mother’s repeated remark brought her to a realization
+of having been addressed.
+
+Letting her mother and Mrs. Starrett precede her in the doorway she
+paused to look back at the scene that had interested her so strongly.
+What _could_ it mean? What was going on? How was she involved in it?
+
+Her glance moved quickly from the watcher to the watched. The blond
+young man caught her eye. Amazedly, it seemed to her, he stopped right
+in the middle of what he was saying and sat there, his gaze fixed full
+on her. She let her eyes fall, abashed, and turned to hasten after her
+mother, but not so quickly did she turn but that she observed he had
+hastily seized his cup and appeared to be drinking to her, not so much
+impudently as admiringly.
+
+
+
+
+CHAPTER III
+“MR. FLECK”
+
+
+Twice after the elevator had deposited her on the floor Jane had
+approached the door of Room 708, and twice she had walked timorously
+past it to the end of the hall, trying to muster up courage to enter. A
+visit to a man’s office in the business district was a novelty for her.
+On the few previous excursions of the sort she had made she always had
+been accompanied by one of her parents. She found herself wishing now
+that she had taken her father into her confidence and had asked him to
+go with her. Making shopping her excuse she had come down-town with Mr.
+Strong but had gotten off at Astor Place, and waited over for another
+train.
+
+In her hand she held the card given to her by the black-mustached man
+the afternoon before. As she studied it now her curiosity came to the
+rescue of her fast-oozing courage. She must find out what it all meant,
+whatever the risk or peril that might confront her. Boldly she returned
+to Room 708 and opened the door. An office boy seated at a desk looked
+up inquiringly.
+
+“Is Mr. Fleck in?” she inquired timidly.
+
+“Who wishes to see him?”
+
+“Just say there’s a lady wishes to speak to him,” she faltered,
+hesitating to give her name.
+
+“Are you Miss Strong?” asked the boy abruptly, “because if you are,
+he’s expecting you.”
+
+She nodded, and the boy, jumping up, escorted her into an inner room.
+As she entered nervously an alert-looking man, with graying hair and
+mustache, rose courteously to greet her. In the quick glance she gave
+at her surroundings she was conscious only of the great mahogany desk
+at which he sat and behind it some filing cabinets and a huge safe, the
+outer doors of which stood open.
+
+“Sit down, won’t you, Miss Strong,” he said, placing a chair for her.
+
+His manner and his cultured tone, everything about him, reassured her
+at once. They conveyed to her that he was what she would have termed “a
+gentleman,” and with a little sigh of relief she seated herself.
+
+“I’m afraid,” said Mr. Fleck, smiling, “that Carter’s method of
+approaching you must have alarmed you.”
+
+“Carter—Oh, the black-mustached man.”
+
+“Yes, that describes him. You see, he did not wish to act definitely
+without consulting his chief, yet the unexpected opportunity seemed far
+too vital not to be utilized. He did not explain, did he, what it was
+we wanted of you?”
+
+“Indeed he didn’t,” said Jane, now wholly herself. “He was most
+mysterious about it.”
+
+Mr. Fleck smiled amusedly.
+
+“Carter has been an agent so long that being mysterious is second
+nature to him.”
+
+“An agent—I don’t understand.”
+
+“A Department agent,” explained Mr. Fleck, adding, “engaged in secret
+service work for the government.”
+
+“Oh!”
+
+Jane’s exclamation was not so much of surprise as of delighted
+realization, and the satisfaction expressed in her face was by no means
+lost on Mr. Fleck.
+
+“Would you object,” he asked, moving his chair a little closer to hers,
+“if, before I explain why you are here, I ask you a few questions—very
+personal questions?”
+
+“Certainly not,” said Jane.
+
+“You are American-born, of course?”
+
+“Oh, yes.”
+
+“And your parents?”
+
+“American for ten or twelve generations.”
+
+“How long have you lived in that apartment house on Riverside Drive?”
+
+“For about five years.”
+
+“Do you know any of the other tenants in the house?”
+
+“No—that is, none personally.”
+
+“Is your time fully occupied?”
+
+“No, indeed it isn’t, I’ve nothing to do at all, nothing except to try
+to amuse myself.”
+
+“Good,” said Mr. Fleck. “Now would you be willing to help in some
+secret work for the United States Government, some work of the very
+highest importance?”
+
+“Would I?” cried Jane, her eyes shining. “Gladly! Just try me.”
+
+“Don’t answer too quickly,” warned Mr. Fleck. “Remember, it will be
+real work, serious work, not always pleasant, sometimes possibly a
+little perilous. Remember, too, it must be done with absolute secrecy.
+You must not let even your parents know that you are working with us.
+You must pledge yourself to breathe no word of what you are doing or
+are asked to do to a living soul. Everything that we may tell you is to
+be buried forever from everybody. No one is to be trusted. The minute
+one other person knows your secret it will no longer be a secret. Can
+we depend upon you?”
+
+“You may absolutely depend on me,” said Jane slowly and soberly. “I
+give you my word. I have been eager for ever so long to do something to
+help, to really help. My father is doing all he can to aid the
+government. He’s on the Shipping Board.”
+
+Mr. Fleck nodded. Evidently he was aware of it already.
+
+“My brother, my only brother,” Jane continued, with a little catch in
+her throat, “is Over There—somewhere Over There—fighting for his
+government. If there is anything I can do to help the country he is
+fighting for, the country he may die for, I pledge you I will do it
+gladly with my heart, my soul, my body—everything.”
+
+“Thank you,” said Mr. Fleck softly, taking her hand. “I felt sure you
+were that sort of a girl. Now listen.” He moved his chair still closer
+to hers, and his voice became almost a whisper. “In the apartment next
+to you there live two men,—Otto Hoff and his nephew, Fred. They have an
+old German servant, but we can leave her out of it for the present. The
+old man is a lace importer. Apparently they are both above suspicion,
+yet—”
+
+He stopped abruptly.
+
+“You think they are spies—spies for Germany,” questioned Jane
+excitedly. “They’re Germans, of course?”
+
+“Otto Hoff is German-born, but he has been here for twenty years.
+Several years ago he took out papers and became an American citizen.”
+
+“And the young man?”
+
+Jane’s tone was vibrant with interest. It must be the man she had seen
+from her window whom they suspected most.
+
+“He professes to be American-born.”
+
+“Oh,” said the girl, rather disappointedly.
+
+“But,” continued Mr. Fleck, “there’s something queer about it all. He
+arrived in this country only three days before we went into the war. He
+had a certificate, properly endorsed, giving his birthplace as
+Cincinnati. He arrived on a Scandinavian ship. He speaks German as well
+and as fluently as he speaks English, both without accent.”
+
+“Perhaps he was educated abroad,” suggested Jane, rather amazed at
+finding herself seeking to defend him.
+
+“He must have been,” said Fleck, “yet I find it hard to believe that
+Germany at this time is letting any young German-American come home if
+he’s soldier material—and young Hoff’s appearance certainly suggests
+military training.”
+
+“It surely does.”
+
+“Unless,” continued Fleck, “there was some special object in sending
+him here.”
+
+“You think,” said Jane slowly, “they sent him here—to this country—as a
+spy.”
+
+“In our business we dare not think. We cannot merely conjecture. We
+must prove,” said Mr. Fleck. “Maybe the Hoffs are O.K. I do not know.
+Nobody knows yet. Let me tell you some of the circumstances. This much
+we do know. Von Bernstorff is gone. Von Papen is gone. Scores of active
+German sympathizers and propagandists have been rounded up and interned
+or imprisoned, yet, in spite of all we have done, their work goes on. A
+vast secret organization, well supplied with funds, is constantly at
+work in this country, trying to cripple our armies, trying to destroy
+our munition plants, trying to corrupt our citizens, trying to disrupt
+our Congress. Every move the United States makes is watched. As you
+probably know, every day now large numbers of American troops are
+embarking in transports in the Hudson.”
+
+“Yes,” said Jane, “you can see them from our windows.”
+
+“Now then,” said Mr. Fleck, lowering his voice impressively, “here is
+the fact. Some one somewhere on Riverside Drive is keeping close and
+constant tab on the warships and transports there in the river. We have
+managed recently to intercept and decipher some code messages. These
+messages told not only when the transports sailed but how many troops
+were on each and how strong their convoy was. Where these messages
+originate we have not yet learned. We are practically certain that some
+one in our own navy, some black-hearted traitor wearing an officer’s
+uniform—perhaps several of them—is in communication with some one on
+shore, betraying our government’s most vital secrets.”
+
+“I can’t believe it,” cried Jane, “our own American officers traitors!”
+
+“Undoubtedly some of them are,” said Mr. Fleck regretfully. “The German
+efficiency, for years looking forward to this war, carefully built up a
+far-reaching spy system. Years ago, long before the war was thought
+of—or at least before we in this country thought of it—many secret
+agents of Wilhelmstrasse were deliberately planted here. Many of them
+have been residents here for years, masking their real occupation by
+engaging in business, utilizing their time as they waited for the war
+to come by gathering for Germany all of our trade and commercial
+secrets. Some of these spies have even become naturalized, and they and
+their sons pass for good American citizens. In some cases they have
+even Americanized their names. Insidiously and persistently they have
+worked their way into places, sometimes into high places in our
+chemical plants, our steel factories, yes, even into high places in our
+army and navy and into governmental positions where they can gather
+information first-hand. In no other country has it been so easy for
+them, because of this one fact: so large a proportion of Uncle Sam’s
+population is of German birth or parentage. Why here in New York City
+alone there are more than three-quarters of a million persons, either
+German-born themselves or born of German parents. Many of them, the
+vast majority of them, probably, are loyal to America, but think how
+the plenitude of German names makes it easy for spies to get into our
+army and navy. Besides that, they employ evil men of other
+nationalities as spies, the criminal riffraff,—Danes, Swedes,
+Spaniards, Italians, Swiss and even South Americans,—all of whom are
+free to go and come as they choose in this country.”
+
+“I never realized before,” said Jane, “how many Germans there were all
+about us.”
+
+“In an effort to locate this particular band of naval spies,” continued
+Mr. Fleck, “we have combed the apartment houses and residences along
+the Drive. Three places in particular are under suspicion. The
+apartment of the Hoffs is one of these places. They moved in there
+thirty days after this country went to war. Ordinarily, where the
+occupants of an apartment are under suspicion, we take the
+superintendent of the building partly into our confidence and plant
+operatives in the house, or else we hire an apartment in the same
+building. In this case neither course is practicable. The
+superintendent of your building is a German-American and we dare not
+trust him, and there is no vacant apartment that we can rent. We have
+been watching the Hoffs from the outside as best we could. Carter, who
+has had charge of the shadowing, accidentally happened to overhear you
+give your address. He had procured a list of the tenants and remembered
+the location of your apartment. It struck him at once that you would be
+a valuable ally if you would consent to work with us.”
+
+“What is it that you wish me to do?” asked Jane wonderingly. “You’ll
+have to tell me how to go about it.”
+
+“All a good detective needs,” said Mr. Fleck, “is, let us say, three
+things—observation, addition and common sense. You must observe
+everything closely, be able to put two and two together and use your
+common sense. Do you know the Hoffs by sight?”
+
+“Only by sight.”
+
+“They live in the next apartment on your floor, do they not?”
+
+“Yes. Young Mr. Hoff’s bedroom is the room next to mine.”
+
+“Good,” cried Mr. Fleck. “Can you hear anything from the next
+apartment, any conversations?”
+
+“No, only muffled sounds.”
+
+“The windows overlook the river and the transports, do they not?”
+
+“Yes, the windows of Mr. Hoff’s bedroom and the room next. Their
+apartment is a duplicate of ours.”
+
+Mr. Fleck sprang up and crossed to the big safe. Opening an inner
+drawer he took out a small metal disk and handed it to her. Jane looked
+at it curiously. It bore no wording save the inscription “K-19.”
+
+“That,” said Mr. Fleck, “is the only thing I can give you in the way of
+credentials. Keep it somewhere safely concealed about your clothing and
+never exhibit it except in case of extreme necessity. If ever you are
+in peril any police officer will recognize it at once and will promptly
+give you all the assistance possible.”
+
+“But,” protested the girl, “I don’t know yet what I am to do.”
+
+“For the present I am trusting to your resourcefulness to make
+opportunities to help us. We are watching the house closely from the
+outside. Carter will identify you to the other operatives. Once a day I
+will expect you to call me up, not from your home but from a public
+’phone. Here is my number. Say ‘this is Miss Jones speaking,’ and I
+will know who it is. I can communicate with you by note without
+arousing suspicion?”
+
+“Oh, yes, certainly.”
+
+“If at any time I have to call you on the ’phone, or if any of the
+other operatives want to communicate with you the password will be ‘I
+am speaking for Miss Jones.’”
+
+“Isn’t that exciting—a secret password,” cried Jane enthusiastically.
+
+“If you can manage it without compromising yourself too seriously, I
+wish you would make the young man’s acquaintance.”
+
+“That will be simple,” said Jane, remembering the admiring way in which
+he had raised his cup in her direction as she left the hotel.
+
+“If possible find out who their visitors are in the apartment and keep
+your eyes open for any sort of signalling to the transports. If ever
+there is an opportunity to get hold of notes or mail delivered to
+either of them, don’t hesitate to steam it open and copy it.”
+
+“Must I?” said Jane. “That hardly seems right or fair.”
+
+“Of course it’s right,” cried Mr. Fleck warmly. “Think of the lives of
+our soldiers that are at stake. The devilish ingenuity of these German
+spies must be thwarted at all costs. They seem to be able to discover
+every detail of our plans. Only two days ago one of our transports was
+thoroughly inspected from stem to stern. Two hours later twenty-six
+hundred soldiers were put aboard her on their way to France. Just by
+accident, as they were about to sail, a time-bomb was discovered in the
+coal bunkers, a bomb that would have sent them all to kingdom come.”
+
+“How terrible!”
+
+“Somebody aboard is a traitor. Somebody knew when that inspection was
+made. Somebody put that bomb in place afterward. That shows you the
+kind of enemies we are fighting.”
+
+Jane shuddered. She was thinking of the sailing of another transport,
+the one that had carried her brother to France.
+
+“Anything seems right after that,” she said simply.
+
+“Yes,” said Mr. Fleck, “there is only one effective way to fight those
+spying devils. We must stop at nothing. They stop at nothing—not even
+murder—to gain their ends.”
+
+“I know that,” said Jane hastily. “I saw something myself you ought to
+know about.”
+
+As briefly as she could she described the scene she had witnessed in
+the early morning hours from her bedroom window, the man following the
+younger Hoff, Hoff’s discovery and pursuit of him around the corner and
+of his return alone.
+
+“And in the morning,” she concluded, “they found a man’s body in the
+side street. He had a bullet through his heart. There was a revolver in
+his hand. The newspapers said that the police and the coroner were
+satisfied that it was a suicide. I caught a glimpse of Mr. Hoff’s face
+when he came back from around that corner. It was all convulsed with
+hate, the most terrible expression I ever saw. I’m almost certain he
+murdered that man. I’m sure it wasn’t a suicide.”
+
+“I’m sure, too, that it was no suicide,” said Mr. Fleck gravely. “The
+man who was found there was one of my men, K-19, the man whose badge I
+have just given you. He had been detailed to shadow the Hoffs.”
+
+
+
+
+CHAPTER IV
+THE CLUE IN THE BOOK
+
+
+Subway passengers sitting opposite Jane Strong as she rode up-town from
+Mr. Fleck’s office, if they observed her at all—and most of them
+did—saw only a slim, good-looking young girl, dressed in a chic
+tailormade suit, crowned with a dashing Paris hat tilted at the proper
+angle to display best the sheen of her black, black hair, which after
+the prevailing fashion was pulled forward becomingly over her ears.
+Outwardly Jane was unchanged, but within her nerves were all atingle at
+the thought of the tremendous and fascinating responsibility so
+unexpectedly thrust upon her. Her mind, too, was aflame with patriotic
+ardor, but coupled with these new sensations was a persisting sense of
+dread, an intangible, unforgettable feeling of horror that kept
+cropping up every time her fingers touched the little metal disk in her
+purse.
+
+The man who had carried it yesterday, the other “K-19” who had
+undertaken to shadow those people next door, now lay dead with a bullet
+through his heart. Was there, she wondered, a similar peril confronting
+her? Would her life be in danger, too? Was that the reason Mr. Fleck
+had told her of her predecessor’s fate—to warn her how desperate were
+the men against whom she was to match her wits? Yet no sense of fear
+that projected itself into her busy brain as she cogitated over the
+task before her held her back. If anything she was rather thrilled at
+the prospect of meeting actual danger. What bothered her most was how
+she could best go about aiding Mr. Fleck and his men in their work.
+
+Her opportunity came far more quickly than she had anticipated. She had
+gotten off the train at the 96th Street station, purposing to walk the
+twenty odd blocks to her home as she pondered over the work that lay
+ahead of her. Busy with a horde of struggling new thoughts she
+proceeded along Broadway, for once in her life unheeding the rich gowns
+and feminine dainties so alluringly displayed in the shop windows.
+Suddenly she pulled herself together with a start. Directly ahead of
+her, plodding along in the same direction, was a figure that from
+behind seemed strangely familiar. She quickened her step until she
+caught up sufficiently with the man ahead to get a good glimpse of his
+side face. Nervously she caught her breath. Without any doubt it was
+the gray Van Dyke beard of old Otto Hoff.
+
+Where was he going? What was he doing? She paused and looked behind
+her, scanning the pavement on both sides of the street. She was
+half-hoping that she would discover Carter or some of his men shadowing
+their quarry, but her hope was vain. There was no one in the block at
+the moment but herself and Mr. Hoff. If Fleck’s men had been watching
+his movements, the old man certainly seemed to have eluded them.
+
+What should she do? Vividly there flashed into her mind her chief’s
+parting words.
+
+“Watch everything,” he had charged her. “Remember everything, report
+everything. No detail is too unimportant. If you see one of the Hoffs
+leave the house, don’t merely report to me that the old man or the
+young man left the house about three o’clock. That won’t do at all. I
+want to know the exact time. Was it six minutes after three or eleven
+minutes after three? I must know what direction he went, if he was
+alone, how long he was absent, where he went, what he did, to whom he
+talked. Here in my office I take your reports, Carter’s reports, a
+dozen other reports, and study them together. Things that in themselves
+seem trifling, unimportant, of no value, coupled with other seemingly
+unimportant trifles sometimes develop most important evidence.”
+
+To prove his point he had told her of the seemingly innocent wireless
+message that an operator, listening in, had picked up, at a time when
+Germans were still permitted to use the wireless station on Long Island
+for commercial messages to the Fatherland. On the face of it, it was
+the mere announcement of the death of a relative with a few details.
+But a little later the same operator caught the same message coming
+from another part of the country, with the details slightly different,
+and still later another message of the same purport. Evidently, by
+comparing the messages, the United States authorities had been able to
+work out a code.
+
+Remembering this, Jane decided that it was her particular duty just now
+to follow the old German and note everything he did. For several blocks
+she trailed along behind him, without arousing any suspicion on his
+part that he was being followed. He stopped once to light a cigarette,
+the girl behind him diverting suspicion by hastily turning to a shop
+window. Again he stopped, this time before the display of viands in the
+window of a delicatessen store. Thoughtfully Jane noted the number,
+observing, too, that the name of the proprietor above the door was
+obviously Teutonic. She was half-expecting to see her quarry turn in
+here, but he walked on to the middle of the next block, where he
+entered a stationery store.
+
+Hesitating but a second, to decide on a course of action, she followed
+him boldly into the store. She felt that she must ascertain just what
+he was doing in there. As she entered she saw that in the back part of
+the store was a lending library. Mr. Hoff had gone back to it and was
+inspecting the books displayed there. Unhesitatingly she, too,
+approached the book counter.
+
+“Have you ‘Limehouse Nights’?” she asked the attendant, naming the
+first book that came into her head. She had a copy of the book at home,
+but that seemed to be the only title she could think of.
+
+“We have several copies,” the girl in charge answered, “but I think
+they are all out. I’ll look.”
+
+As the clerk examined the shelves, Jane kept up a desultory talk with
+her, questioning her about various books on the shelves, all the while
+watching the old German out of the corner of her eye. His back was
+toward her, and he seemed to be examining various books on the shelves,
+turning over the pages as if unable to decide what he wanted. Curious
+as to what his taste in reading was, Jane endeavored to locate each
+book that he removed from its place, her idea being that she would
+later try to discover their titles. To her amazement she found that it
+was invariably the third book in each shelf that he removed and
+examined—the third from the end. It did not appear to her that he was
+examining the contents of the pages so much as searching them as if he
+expected to find something there.
+
+All at once, as she furtively watched from behind him, she heard him
+give a little pleased grunt and she saw him picking out from between
+the leaves of the book a fragment of paper, which he held concealed in
+his hand. Watching closely, Jane saw him thrust this same hand into his
+trousers pocket, and when he brought it out she was certain that the
+hand was empty. What did this curious performance mean? What was the
+little slip of paper he had found in the book? Why had he concealed it
+in his pocket?
+
+Still keeping her attention riveted on him, she picked up a book to
+mask her occupation and pretended to be turning its pages. She was glad
+she had done so, for a minute later old Hoff wheeled suddenly and
+looked sharply about him. Apparently having his suspicions disarmed by
+seeing only herself and the clerk there, he turned again to the
+bookshelves. Jane this time saw him thrust his fingers into his
+waistcoat pocket and withdraw therefrom,—she was almost certain of
+it,—a little slip of paper. She saw him remove from the second row of
+books the fifth from the end, open it quickly and close it again and
+then restore it to its place. As he did so he turned to leave the
+store.
+
+“Didn’t you find anything to read to-day, Mr. Hoff?” the clerk asked.
+
+“Nodding,” he answered. “You keep novels, trash, nodding worth while.”
+
+Her nerves aquiver, Jane waited until he was out of the store and then
+stepped briskly to the place where he had stood. Hastily she pulled
+forth the fifth book from the end in the second row. Turning its pages
+she came upon what she had anticipated,—a strip of yellow manila
+paper,—the paper she was sure she had seen him take from his pocket.
+Hastily she examined it, expecting to find some message written there.
+To her chagrin it was just a meaningless jumble of figures in three
+columns.
+
+534 5 2 331 54 6 544 76 3
+49 12 9 540 30 12 390 3 2 519 3 6
+327 20 2
+ 97
+
+Her first thought was to thrust the little scrap of paper in her purse
+and start again in pursuit of old Hoff, but a sudden light began to
+dawn on her. This was a cipher message, of course. The old man had left
+it here for some one to come and get. If she followed Hoff, how was she
+to discover who the message was for? Puzzled as to what she should do,
+she borrowed a pencil from the clerk on the pretense of writing a
+postal and hastily copied the figures, after which she restored the
+slip to the book in which she had found it.
+
+Glancing about undecidedly, wondering if it would do to take the clerk
+into her confidence, wishing she had some means of reaching Mr. Fleck
+and asking his advice, she spied in a drug-store just across the street
+a telephone booth. She could telephone from there and at the same time
+keep her eye on the store. Quickly she did so, twisting her head around
+all the time she was ’phoning to make sure that no one entered
+opposite.
+
+“Is this Mr. Fleck?” she asked. “This is Miss Jones.”
+
+“So soon?” came back his voice. “What has happened? What is the matter?
+Have you changed your mind?”
+
+“Not at all,” she answered indignantly. “I’ve discovered something
+already—a cipher message.”
+
+“What’s that?”
+
+Even over the wire she could sense the eagerness in Mr. Fleck’s tone,
+and a sense of achievement brought a radiant glow to her cheek.
+
+“I ran into that man—you know whom—”
+
+“The young one?” he interrupted.
+
+“No, the uncle.”
+
+“Yes, yes, go on,” cried Mr. Fleck impatiently.
+
+“I followed him along Broadway after I got off at 96th Street and into
+a library and stationery store. I watched him fuss over the books
+there, and I think he got a slip of paper with a message out of one of
+them.”
+
+“Good,” cried Mr. Fleck, “that is something new. Go on.”
+
+“And then he slipped a paper into a book—”
+
+“Did you notice what book?”
+
+“I don’t know the title. It was the fifth book from the end on the
+second shelf, and I got the paper and copied it.”
+
+“Splendid. What did the message say?”
+
+“It’s just a lot of figures. I put it back after copying it, and I am
+in a drug-store across the street where I can watch to see if any one
+comes to get the message. What shall I do now?”
+
+“Can you remain there fifteen minutes without arousing suspicion?”
+
+“Certainly. I’ll say I am waiting for some one.”
+
+“Good. I’ll get in touch with Carter at once. He’ll tell you what to do
+when he arrives.”
+
+Impatiently Jane sat there, keeping vigilant watch on the entrance
+across the street, determined to be able to describe minutely each
+person that entered. From time to time she surreptitiously studied the
+postcard on which she had jotted down the mysterious numbers. How
+utterly meaningless they looked. Surely it would be impossible for any
+one, even Mr. Fleck, to decipher any message that these figures might
+convey. It would be impossible unless one had the key. Figures could be
+made to mean anything at all. She doubted if her discovery could be of
+much importance after all, yet certainly Mr. Fleck had seemed quite
+excited about it.
+
+She spied Carter passing in a taxi. Two other men were with him. Her
+first impulse was to run out in the street and signal to him, but she
+waited, wondering what she should do. She was glad she had not acted
+impulsively, for a moment later Carter entered alone, evidently having
+left the car somewhere around the corner. She expected that he would
+address her at once, but that was not Carter’s way. He went to the soda
+counter and ordered something to drink, his eyes all the while studying
+his surroundings. Presently he pretended to discover her sitting there.
+To all appearances it might have been an entirely casual meeting of
+acquaintances.
+
+“Good-morning, Miss Jones,” he said quite cordially, extending his
+hand. “I’m lucky to have met you, for my daughter gave me a message for
+you.”
+
+He put just a little stress on the words “my daughter” and Jane
+understood that he was referring to “Mr. Fleck.”
+
+“Indeed,” she replied, “what is it?”
+
+“She wants you to go down-town at once and meet her at Room 708—you
+know the building.”
+
+“Aren’t you coming, too?”
+
+“Not right away. I have some errands to do in the neighborhood. I’ve
+got to buy a book for a birthday present. There’s a library around here
+somewhere, isn’t there?”
+
+“Just across the street,” said Jane, entering into the spirit of the
+masked conversation with interest. “I was looking at a fine book over
+there a few minutes ago. You’ll find it on the second shelf—the fifth
+book from the end, on the north side of the store.”
+
+“I’ll remember that,” said Carter, repeating, “the fifth book on the
+second shelf.”
+
+“That’s right,” said Jane, as they left the drug-store together.
+
+“Which way did the old man go?” asked Carter.
+
+“Down Broadway—toward home,” she replied. “I wanted to follow him, but
+it seemed more important to stay here and watch to see if any one came
+for the message he left there in the book.”
+
+“You did just right, and the Chief is tickled to death. He wants to see
+you right away. You have a copy of the message, haven’t you?”
+
+“Yes, do you wish to see it?”
+
+“No, but he does. Has anybody entered the store since you were there?”
+
+“Nobody, that is no one but a couple of girls.”
+
+“What did they look like? Describe them.”
+
+“Why,” Jane faltered, “I did not really notice. I was not looking for
+girls. I was watching to see that no other men entered the store.”
+
+Carter shook his head.
+
+“You ought to have spotted them, too. You never can tell who the
+Germans will employ. They have women spies, too,—clever ones.”
+
+“I never thought of their using girls,” protested Jane.
+
+“Humph,” snapped Carter, “ain’t we using you? Ain’t one of our best
+little operatives right this minute working in a nursegirl’s garb
+pulling a baby carriage with a baby in it up and down Riverside Drive?
+Well, it can’t be helped. You’d better beat it down-town to the Chief
+right away.”
+
+“I’ll take a subway express,” said Jane, feeling somewhat crestfallen
+at his implied suggestion of failure.
+
+Twenty-five minutes later found her once more in Mr. Fleck’s office.
+Thrilling with the excitement of it all she told him in detail how she
+had followed old Hoff and of his peculiar actions in the bookstore.
+
+“And here,” she said, presenting the postcard, “is an exact copy of the
+cipher message he left there. I copied every figure, in the columns,
+just as they were set down. I don’t suppose though you’ll be able to
+make head or tail out of it. I know I can’t.”
+
+“Don’t be too sure of that,” smiled Chief Fleck, as he took the card.
+“When you get used to codes, most of them identify themselves at the
+first glance—at least they tell what kind of a code it is. That’s one
+thing about the Germans that makes their spy work clumsy at times. They
+are so methodical that they commit everything to writing. Now the most
+important things I know are right in here”—he tapped his head. “Every
+once in a while they ransack my rooms, but they never find anything
+worth while. Now this code”—he was studying the card intently—“seems to
+be one of a sort that our friends from Wilhelmstrasse are ridiculously
+fond of using. It is manifestly a book code.”
+
+“A book code,” Jane repeated perplexedly. “I don’t understand.”
+
+“It is very simple when two persons who wish to communicate with each
+other secretly both have a copy of some book they have agreed to use.
+They write their message out and then go through the book locating the
+words of the message by page, line and word. That’s what the three
+columns mean. Our only problem is to discover which is the book they
+both have. They often employ the Bible or a dictionary or—”
+
+He stopped abruptly and studied the columns of figures.
+
+“This code,” he went on, “on its face is from a book that has at least
+544 pages. One of the pages has at least 76 lines—that’s the middle
+column—so the book must be set in small type.”
+
+“What book do you suppose it is?” asked Jane interestedly. She was glad
+now that she had listened to Carter. She was sure she was going to like
+being in the service. It was all so interesting, and she was learning
+so many fascinating things.
+
+“If my theory is right those letters indicate that the book used was an
+almanac. That’s the book that Wilhelmstrasse made use of when a
+wireless message was sent in cipher to the German ambassador directing
+him to warn Americans not to sail on the Lusitania. They betrayed
+themselves at the Embassy by sending out to buy a copy of this almanac.
+Let’s see how our theory works out.”
+
+Taking up an almanac that lay on his desk he began turning to the pages
+indicated in the first column of figures, checking off the lines
+indicated in the second column and putting a ring around the words
+marked by the third column of figures.
+
+“Let’s see—page 534—fifth line—second word—that’s (eight). Now
+then—page 331—that’s the chronology of the war in the almanac, so I
+guess we are on the right track—fifty-fourth line—sixth
+word—(transport).”
+
+“Isn’t it wonderful!” cried Jane.
+
+“Damn them,” he exploded. “I know we are on the right track. Some
+transports with our troops sailed this morning, and already the German
+spies are spreading the news, hoping to get it to one of their
+unspeakable U-boats.”
+
+Quickly he ran through the rest of the cipher, writing it out as he
+went along:
+
+EIGHT—TRANSPORT—SAILED—THURSDAY—15,000—INFANTRY—FIVE DESTROYERS.
+
+As Fleck finished the message his face became almost black with rage.
+
+“Damn them,” he cried again, “in spite of everything we do they get
+track of all our troop movements. Their information, whenever we
+succeed in intercepting it, is always accurate. If I had my way I’d
+lock up every German in the country until the war was over, and I’d
+shoot a lot of those I locked up. Until the whole country realizes that
+we are living in a nest of spies—that there are German spies all around
+us, in every city, in every factory, in every regiment, on every ship,
+everywhere right next door to us—this country never can win the war.”
+
+“What does the ‘97’ at the end mean?” questioned Jane timidly, a little
+bit frightened at his outburst, yet more than ever realizing the vast
+importance of his work—and hers.
+
+“Oh, that’s nothing. Probably old Hoff’s number. Most spies are known
+just by numbers.”
+
+“Yes, of course,” said Jane, flushing as she recalled that she herself
+was now “K-19.” Was she a spy? Was Mr. Fleck a chief of spies? She
+always had looked on a spy as a despicable sort of person, yet surely
+the work in which they both were engaged was vital to American success
+at arms—a patriotic and important service for one’s country.
+
+“I suppose,” she said thoughtfully, unwilling to pursue the chain of
+her own thought any further, “that there is evidence enough now to
+arrest old Mr. Hoff right away.”
+
+“You bet there is,” said Mr. Fleck emphatically, “but that is the last
+thing I am thinking of doing yet. He is only one link in a great chain
+that extends from our battleships and transports there in the North
+River clear into the heart of Berlin. We’ve got to locate both ends of
+the chain before we start smashing the links. We’ve got to find who it
+is in this country that is supplying the money for all their nefarious
+work, from whom they get their orders, how they smuggle their news out.
+Most of all we have got to find where the end of the chain is fastened
+in our own navy. The traitors there are the black-hearted rascals I
+would most like to get. They are the ones we’ve got to get.”
+
+“Yes, indeed,” assented Jane, suddenly recalling the navy lieutenant
+she had seen in the Ritz chatting so confidentially with old Otto
+Hoff’s nephew. Was he, she wondered, one of the links in the terrible
+chain? Was he the end—the American end of the chain?
+
+“We’re certain about the old man now,” said Fleck, rising as if to
+indicate that the interview was at an end. “We’ve got to get the young
+fellow next. There is nothing in this to implicate him. That’s your
+job. Find out all you can about him. Get acquainted with him, if
+possible. That’s one of the weakest spots about all German spies. They
+can’t help boasting to women. Try to get to know this Fred Hoff. It’s
+most important.”
+
+“I’ll do more than try,” said Jane spiritedly. “I’ll get acquainted
+right away. I’ll make him talk to me.”
+
+
+
+
+CHAPTER V
+ON THE TRAIL
+
+
+Few men, even fathers, realize how utterly inexperienced is the average
+well-brought-up girl, just emerged from her teens, in the affairs of
+the great mysterious world that lies about her. A boy, in his youth
+living over again the history of his progenitors, escapes his nurse to
+become an adventurer. At ten he is a pirate, at twelve a train robber,
+at fourteen an aviator, actually living in all his thoughts and
+experiences the life of his hero of the moment, learning all the while
+that the world about him is full of adventurers like himself, ready to
+dispute his claims at the slightest pretext, or to carry off his booty
+by prevailing physical force.
+
+Well-brought-up girls seldom are fortunate enough to have such
+educative experiences. Their friends are selected for them, gentle
+untaught creatures like themselves. Few of them learn much of the
+practical side of life. A boy is delighted at knowing the toughest boy
+in the neighborhood. A girl’s ambitions always are to know girls
+“nicer” than she is. The average girl emerges into womanhood with her
+eyes blinded, uninformed on the affairs of life, business, politics,
+untrained in anything useful or practical, knowing more of romance and
+history than she does of present-day facts.
+
+If Chief Fleck had understood how really inexperienced Jane Strong
+actually was, it is a question whether he would have ventured to
+entrust so important a mission to her as he had done. Jane herself, as
+she left his office, aroused by his revelations of the treacherous work
+of Germany’s spies, and uplifted by his appeal to her patriotism, felt
+enthusiastically capable of obeying his instructions. It seemed very
+simple, as he had talked about it. All she had to do was to get
+acquainted with the young man next door. Yet the further the subway
+carried her from Mr. Fleck’s office after her second visit there that
+morning, the more her heart sank within her, and the fuller her mind
+became of misgivings.
+
+In a big city next door in an apartment house is almost the same thing
+as miles away. She ransacked her brain, trying to remember some
+acquaintance who might be likely to know the Hoffs, but failed utterly
+to recall any one. She reviewed all possible means of getting
+acquainted but could find none that seemed practical. Never in her life
+had she spoken to a man without having been introduced to him—except of
+course to Carter and Mr. Fleck, and these men, she told herself, were
+government officials, something like policemen, only nicer. At any
+rate, she knew them only in a business way, not socially. If she was to
+be successful in learning much about the Hoffs—about young Mr. Hoff—she
+felt that it was necessary to make them social acquaintances.
+
+She must manage to meet Frederic Hoff in some proper way, but how? She
+thought of such flimsy tricks as dropping a handkerchief or a purse in
+the elevator some time when he happened to be in it, but rejected the
+plan as disadvantageous. “Nice” girls did not do that sort of thing,
+and even though she was seeking to entrap her neighbor she did not for
+a moment wish him to consider her as belonging to the other sort. It
+rather annoyed her to find that she cared what kind of an impression
+she made on him. What difference did it make what a German spy thought
+of her, especially a murderer? Yet, she argued with herself, the better
+the impression she made at first the more likely she would be to gain
+his confidence, and that she knew would delight Mr. Fleck. Was Frederic
+Hoff, too, really, she wondered, a spy? Her face colored as she
+recalled the mental picture she last had had of him, gallantly and
+admiringly raising his cup to her as she left the Ritz, not obtrusively
+or impudently, but so subtly that she was sure that no one had observed
+it but herself. It seemed preposterous to associate the thought of
+murder with a man like him.
+
+As she entered the apartment house she was arguing still with herself
+about him. Her intuition told her that Frederic Hoff was a gentleman,
+and how could a gentleman be what Mr. Fleck seemed to think he was? As
+the door swung to behind her she gave a little quick breath of delight,
+for she had caught sight of a uniformed figure standing by the
+switchboard. She had recognized him at once. It was the naval
+lieutenant who had been at the Ritz. She heard him saying to the girl
+at the switchboard:
+
+“Tell Mr. Hoff, young Mr. Hoff, that Lieutenant Kramer is here. I’ll
+wait for him down-stairs.”
+
+Quick as a flash a course of action came into her mind. She saw an
+opportunity too good to be neglected. She hurried forward to where the
+lieutenant was standing, her hand outstretched, with a smile of
+recognition—feigned, but well-feigned—on her lips.
+
+“Why, Lieutenant Kramer,” she cried, “how delightful. Have you really
+kept your promise at last and come to see the Strongs?”
+
+She could hardly restrain her amusement as she watched the embarrassed
+young officer strive in vain to recall where it was that he had met
+her. She had relied on the fact that the men in the navy meet so many
+girls at social functions that it is impossible for any of them to
+remember all they had met.
+
+“Really, Miss—” he stammered, struggling for some fitting explanation.
+
+“Don’t tell me,” she warned reprovingly, “that it isn’t Jane Strong
+that you are here to see, after all those nice things you said to me
+that day we had tea aboard your ship.”
+
+She was hoping he would not insist on going into particulars as to
+which ship it was. Fortunately she had been to functions on several of
+the war vessels, so that she might find a loop-hole if he was too
+insistent on details.
+
+“Indeed, Miss Strong,” said Kramer, gallantly pretending to recall her,
+“I’m delighted to see you again. I’ve been intending to come to see you
+for ever so long, but you understand how busy we are now. In fact, it
+was business that brought me here to-day. I’m calling on Mr. Hoff, who
+lives here, to take him to lunch to discuss some important matters.”
+
+At his last phrase Jane’s heart thrilled. What important matters could
+there be that a navy lieutenant could fittingly discuss with a German,
+with the nephew of the man whose secret code message they had just
+succeeded in reading? Determining within herself to keep fast hold on
+the beginning she had made, she masked her real thoughts and let her
+face express frank disappointment.
+
+“How horrid of you,” she continued, “when I was just going to insist
+that you stay and have luncheon with us.”
+
+He was protesting that it was quite out of the question when the
+elevator brought down her mother, whom Jane at once summoned as an
+ally, feeling sure that considering how many men of her daughter’s
+acquaintance she had met, it would be perfectly safe to keep up the
+deception.
+
+“Oh, mother,” she cried, “you remember Lieutenant Kramer, don’t you?
+I’ve just been urging him to stay and have luncheon with us. Do help me
+persuade him.”
+
+“Of course I remember Mr. Kramer,” fibbed the matron cordially, all
+unaware of her daughter’s duplicity. “Do stay, Mr. Kramer, and have
+luncheon with Jane. I ordered luncheon for four, expecting to be home,
+and now I’ve been called away, but your aunt is there to chaperone you.
+It spoils the servants so to prepare meals and have no one to eat them,
+to say nothing of displeasing Mr. Hoover. It’s really your duty—your
+duty as a patriot—to stay and prevent a food-waste.”
+
+“I’ve just been trying to explain to your daughter that I was taking
+Mr. Hoff to luncheon with me. Here he is now.”
+
+Mrs. Strong’s eyes swept the tall figure approaching appraisingly and
+apparently was pleased with his aspect. As Mr. Hoff was presented she
+hastened to include him in the invitation to luncheon.
+
+“Have pity on a poor girl doomed to eat a lonely luncheon by her
+parent’s neglect,” urged Jane. “Really, you must come, both of you.
+Nice men to talk to are so scarce in these war times that I have no
+intention of letting you escape.”
+
+“I’m in Kramer’s hands,” said Frederic Hoff gallantly, “but if he takes
+me to some wretched hotel instead of accepting such a charming
+invitation as this, my opinion of him as a host will be shattered.”
+
+“But,” struggled Kramer, realizing that it must be a case of mistaken
+identity and sure now that he never had met either Jane or her mother
+before, “we have some business to talk over.”
+
+“Business always can wait a fair lady’s pleasure,” said Hoff. “Is this
+ruthless war making you navy men ungallant?”
+
+With a mock gesture of surrender, and as a matter of fact, not at all
+averse to pursuing the adventure further, Lieutenant Kramer permitted
+Jane to lead the way to the Strong apartment.
+
+Soon, with the familiarity of youth and high spirits, the three of them
+were merrily chatting on the weather, the war, the theater and all
+manner of things. Jane, in the midst of the conversation, could not
+help noting that Hoff had seated himself in a chair by the window where
+he seemed to be keeping a vigilant eye on the ships that could be seen
+from there. Even at the luncheon table he got up once and walked to the
+window to look out, making some clumsy excuse about the beautiful view.
+
+Determined to press the opportunity, Jane endeavored to turn the
+conversation into personal channels.
+
+“You are an American,” she said turning to Hoff, “are you not? I’m
+surprised that you are not in uniform, too.”
+
+“A man does not necessarily need to be in uniform to be serving his
+government,” he replied. “Perhaps I am doing something more important.”
+
+“But you are an American, aren’t you?” she persisted almost impudently,
+driven on by her eagerness to learn all she possibly could about him.
+
+“I was born in Cincinnati,” he replied hesitantly.
+
+She could not help observing how diplomatically he had parried both her
+questions. Mentally she recorded his exact words with the idea in her
+mind of repeating what he had said verbatim to her chief.
+
+“Then you _are_ doing work for the government?”
+
+Intensely she waited for his answer. Surely he could find no way of
+evading such a direct inquiry as this.
+
+“Every man who believes in his own country,” he answered, modestly
+enough, yet with a curious reservation that puzzled her, “in times like
+these is doing his bit.”
+
+She felt far from satisfied. If he was born in America, if he really
+was an American at heart, his replies would have been reassuring, but
+his name was Hoff. His uncle was a German-American, a proved spy or at
+least a messenger for spies. If her guest still considered Prussia his
+fatherland the answers he had made would fit equally well.
+
+“You’re just as provokingly secretive as these navy men,” she taunted
+him. “When I try to find out now where any of my friends in the navy
+are stationed they won’t tell me a thing, will they, Mr. Kramer?”
+
+“I’ll tell you where they all are,” said Lieutenant Kramer. “Every
+letter I’ve had from abroad recently from chaps in the service has had
+the same address—‘A deleted port.’”
+
+“I really think the government is far too strict about it,” she
+continued. “My only brother is over there now fighting. All we know is
+that he is ‘Somewhere in France.’ War makes it hard on all of us.”
+
+“Yet after all,” said Hoff soberly, “what are our hardships here
+compared to what people are suffering over there, in France, in
+Belgium, in Germany, even in the neutral countries. They know over
+there, they have known for three years, greater horrors than we can
+imagine.”
+
+The longer she chatted with him, the more puzzled Jane became. He
+seemed to speak with sincerity and feeling. Her intuition told her that
+he was a man of honor and high ideals, and yet in everything he said
+there was always reserve, hesitation, caution, as if he weighed every
+word before uttering it. Intently she listened, hoping to catch some
+intonation, some awkward arrangement of words that might betray his
+tongue for German, but the English he spoke was perfect—not the English
+of the United States nor yet of England, but rather the manner of
+speech that one hears from the world-traveler. Question after question
+she put, hoping to trap him into some admission, but skilfully he
+eluded her efforts. She decided at last to try more direct tactics.
+
+“Your name has a German sound. It is German, isn’t it?” she asked.
+
+“I told you I was born in Cincinnati,” he answered laughingly. “Some
+people insist that that is a German province.”
+
+“But you have been in Germany, haven’t you?”
+
+“Why do you ask?”
+
+“I was wondering if you had not lived in that country?”
+
+“I could not well have been there without having lived there, could I?”
+
+Kramer came to her rescue.
+
+“Of course he has lived there. Mr. Hoff and I both attended German
+universities. That was what brought us together at the start—our common
+bond.”
+
+“Did you attend the same university?” asked Jane. She felt that at last
+she was on the point of finding out something worth while.
+
+“No,” said Kramer, “unfortunately it was not the same university.”
+
+She caught her breath and blushed guiltily. If Mr. Kramer had attended
+a German university he could not be an Annapolis graduate. He must be a
+recent comer in the American navy. She knew that since the war began
+some civilians had been admitted. It had just dawned on her that if
+this was the case, since visiting on board ships was no longer
+permitted, it clearly was impossible for her to have met him at any
+function on a warship. He must have known all along that she knew she
+never had met him. He must have been aware, too, that her mother did
+not know him. She felt that she was getting into perilous waters and
+fearful of making more blunders refrained from further questions. A
+vague alarm began to agitate her. If he had detected her ruse when she
+first had spoken to him, why had he not admitted it? What had been his
+purpose in accepting her invitation and in bringing into it his German
+friend, Mr. Hoff?
+
+The ringing of the telephone bell came as a welcome interruption. A
+maid summoned her to answer a call, and excusing herself from the table
+she went to the ’phone desk in the foyer.
+
+“Hello, is this you, Miss Strong?”
+
+It was Carter’s voice, but from the anxious stress in it she judged
+that he was in a state of great perturbation.
+
+“Yes, it is Jane Strong speaking,” she answered.
+
+“You know who this is?”
+
+“Of course. I recognize your voice. It’s Mr. C—”
+
+A warning “sst” over the ’phone checked her before she pronounced the
+name and starting guiltily she turned to look over her shoulder,
+feeling relieved to see the two men still chatting at the table,
+apparently paying no attention to her.
+
+“I understand,” she answered quickly. “What is it?”
+
+“You know that book I told you I was going to buy?”
+
+“Yes, yes!”
+
+“It’s not there.”
+
+“What’s that? The book is gone!”
+
+“The book is there all right, but it’s not the book I want.”
+
+“Are you sure,” she questioned, “that you looked at the right book?”
+
+“I looked at the one you told me to.”
+
+“Are you certain—the fifth book on the second shelf.”
+
+
+Illustration: Had he been standing there listening? How much had he
+heard?
+
+
+She heard a movement behind her and turning quickly saw Frederic Hoff
+standing behind her, his hat and stick in hand. Panic-stricken, she
+hung up the receiver abruptly. Had he been standing there listening?
+How much had he heard? He would know, of course, what “the fifth book
+on the second shelf” signified. Had her carelessness betrayed to him
+the fact that he and his uncle were being closely watched? Anxiously
+she studied his face for some intimation of his thoughts. He was
+standing there smiling at her, and to her agitated brain it seemed that
+in his smile there was something sardonic, defying, challenging.
+
+“I cannot tell you, Miss Strong, how much I have enjoyed your
+hospitality. You made the time so interesting that I had no idea it was
+so late. You will excuse me if I tear myself away at once. I have some
+important business that demands my immediate attention.”
+
+“I hope you’ll come again,” she managed to stammer, “and you, too, Mr.
+Kramer.”
+
+White-faced and terrified she escorted them out, leaving the telephone
+bell jangling angrily. As the door closed behind them, she sank weak
+and faint into a chair, not daring yet to go again to the ’phone until
+she was sure they were out of hearing.
+
+What was the “immediate business” that was calling them away so
+suddenly? She was more than afraid that her incautious use of the
+phrase “the fifth book on the second shelf” had betrayed her. What else
+could it mean? Why else would they have departed so abruptly?
+
+Mustering up her strength and courage she went once more to the ’phone.
+
+“Hello, hello, is that you, Miss Strong? Some one cut us off,” Carter’s
+voice was impatiently saying.
+
+“Hello, Mr. Carter,” she called, “this is Jane Strong speaking. Where
+can I see you at once? It’s most important.”
+
+“I’ll be sitting on a bench along the Drive two blocks north of your
+house inside of ten minutes.”
+
+“I’ll meet you there,” she answered quickly, with a feeling of relief.
+
+The situation was becoming far too complicated, she felt, for her to
+handle alone. Carter would know what to do. If Hoff and Kramer had
+learned from her about the trailing of old Hoff, the sooner it was
+reported to more experienced operatives than she was the better.
+
+“Don’t speak to me when you see me sitting on the bench,” warned
+Carter. “Just sit down there beside me and wait till I make sure no one
+is watching us. I’ll speak to you when it’s safe.”
+
+“I understand,” she answered. “Good-by.”
+
+As she hastened to don her hat and coat she was almost overwhelmed by a
+revulsion of feeling. Two days ago the world about her had seemed a
+carefree, pleasant, even if sometimes boresome place. Now she
+shudderingly saw it stripped of its mask and revealed for the first
+time in all its hideousness, a place of murders and spying and secret
+machinations. People about her were no longer more or less interesting
+puppets in a play-world. They were vivid actualities, scheming and
+planning to thwart and overcome each other. Almost she wished that her
+dream had been undisturbed and that she had not been waked up to the
+realities. Almost she was tempted to abandon her new-found occupation.
+
+Then, once more, a feeling of patriotic fervor swept over her. She
+thought of her brother fighting somewhere in the trenches. She pictured
+to herself the other brave soldiers in the great ships in the Hudson.
+She remembered the evil plotters with their death-dealing bombs,
+striving to bring about a ghastly end for them all before they might
+strengthen the lines of the Allies. She thought, too, of those
+humanity-defying U-boats, forever at their devilish work, guided to
+their prey by crafty, spying creatures right here in New York, more
+than likely by the very people next door.
+
+With her pretty lips set in a resolute line she left the house and
+walked rapidly north. Come what may she would go on with it. Her
+country needed her, and that was all-sufficient.
+
+
+
+
+CHAPTER VI
+THE MISSING MESSAGE
+
+
+After Jane left Carter at the drug-store, he did not cross immediately
+to the bookshop opposite. His detective work was not of that sort. He
+strolled leisurely around the corner long enough to give some
+directions to his two aides waiting there and then, moving across the
+street, paused in front of the window of books as if something there
+had attracted his attention. All the while he was keeping a sharp eye
+for any person who looked as if they might be connected in any way with
+old Hoff. Satisfied that his entrance was unobserved he strolled
+casually in and began looking over the volumes in the lending library.
+The lone clerk in the store—a young woman—at first volunteered some
+suggestions, but as they went unheeded she returned to her work of
+posting up the accounts.
+
+As soon as her attention was occupied Carter moved at once to the end
+of the shelf that Miss Strong had indicated and removed the fifth book.
+To his amazement he found nothing whatever concealed between the
+leaves. The books on either side on the same shelf failed to yield up
+anything. He tried the shelf above and the shelf below. Perhaps Miss
+Strong had been mistaken in the directions. He examined the books at
+the other end. There was nothing there. He recalled that the girl had
+said that no one except two girls had entered the store between the
+time she had discovered and copied the cipher and the time of his
+arrival. If these girls had not taken the message away there could be
+only one other explanation—the clerk in the bookstore must have removed
+it and concealed it somewhere.
+
+“Which of the war books do you think the best?” he asked for the
+purpose of starting a conversation.
+
+“There’s that many it is hard to say, sir,” the young woman answered.
+
+Something in her inflection made him look sharply at her. Her accent
+surely was English, or possibly Canadian. A few judicious questions
+quickly brought out the information that she came from Liverpool and
+that she had three brothers in the British army. Carter decided that it
+was preposterous to suspect her of being in league with German agents.
+There was only one other thing that could have happened. Some one
+else—some one who had eluded Miss Strong’s notice—had removed the
+cipher message.
+
+Promptly he had telephoned to her to meet him. He was glad that he had
+done so, for her evident perturbation as she answered the ’phone both
+interested and puzzled him. Pausing just long enough to report to Chief
+Fleck, he hastened to the rendezvous, arriving there first. He selected
+a bench apart from the others, where the wall jutted out from the walk,
+and seating himself, idled there as if merely watching the river. In
+obedience with his instructions Jane, when she arrived, planted herself
+nonchalantly on the same bench, and paying no attention to him,
+pretended to be reading a letter.
+
+Presently Carter rose and stretching himself lazily, as if about to
+leave, turned to face the Drive, his keen eyes taking in all the
+passers-by. Apparently satisfied, he sat down abruptly and turned to
+speak to the girl beside him.
+
+“All right, K-19,” he said, “it’s safe. Now we can talk.”
+
+“I’ve got such a lot to tell,” cried Jane.
+
+“First,” said Carter, “just where did you put that cipher message when
+you put it back?”
+
+“What!” cried the girl, her face blanching, “wasn’t it there? Didn’t
+you find it?”
+
+Carter shook his head.
+
+“It must be there,” she insisted. “Are you sure you looked in the right
+book—the fifth book from the end on the second shelf on the up-town
+side of the store.”
+
+“It’s not there. I examined every book there, on the shelves above and
+below and at the other end, too.”
+
+“The clerk in the store, that girl—must have hidden it,” cried Jane
+with conviction.
+
+“That’s not likely. She’s an English girl—from Liverpool. She has three
+brothers fighting on the Allies’ side. We can leave her out of it.”
+
+“Who else could have taken it?”
+
+“There’s only one answer,” said Carter slowly and impressively. “Some
+one went into that store between the time you copied the message and
+the time I met you at the drug-store. You told me no one but a couple
+of girls had entered. Was there any one else? Think—think!”
+
+“There was no one,” said Jane thoughtfully, “no one except the two
+girls together. I never thought of suspecting them.”
+
+“What did they look like? Could you identify them?”
+
+“I did not notice them particularly,” Jane confessed. “I was expecting
+Mr. Hoff’s confederate to be a man.”
+
+“They’re using a lot of women spies,” asserted Carter. “Don’t you
+remember what the girls looked like?”
+
+“One of them,” said Jane thoughtfully, “wore an odd-shaped hat, a sort
+of a tam with a red feather.”
+
+“Would you know the hat again if you saw it?”
+
+“I think—I’m sure I would.”
+
+“Well, that’s something. Watch for that hat, and if you ever see it
+again trail the girl till you find out where she lives. If you locate
+her telephone Mr. Fleck at once. And now, what has happened to you?”
+
+“I’ve so much to tell, important, very important, I think.”
+
+She hesitated, wondering how much Carter was in the chief’s confidence.
+Did he know the import of the cipher message she had discovered? Ought
+she to talk freely to him?
+
+“Do you know what those numbers meant?” she asked.
+
+“Yes,” he replied, “about the eight transports sailing. The Chief told
+me about it.”
+
+“Well,” she said, with a sigh of relief, “I have become acquainted with
+young Mr. Hoff already. I’ve just had luncheon with him.”
+
+“That’s fine,” he cried enthusiastically. “A lucky day it was I ran
+across you.”
+
+“When you ’phoned me he was there in our apartment, he and a navy
+lieutenant, Mr. Kramer.”
+
+Attentively he listened as she told of the ruse by which she had
+inveigled them into coming to luncheon, reminding him that it was the
+same naval officer that he himself had seen in close conversation with
+Hoff at the Ritz the day before. He nodded his head in a satisfied way.
+
+“They are together too much to be up to any good,” he commented. “Tell
+me the rest. What made you so rattled when I ’phoned you?”
+
+He listened intently as she told of finding young Hoff standing right
+behind her as she had inadvertently mentioned aloud “the fifth book.”
+
+“Do you suppose,” she questioned anxiously, “that he overheard me and
+understood what we were talking about? He left right away after that. I
+do hope I didn’t betray the fact that they are being watched.”
+
+“We can’t tell yet,” said Carter. “The precautions they take and the
+roundabout methods they have of communicating with each other show that
+all Germany’s spies constantly act as if they knew they were under
+surveillance. In fact, I suppose every German in this country, whether
+he is a spy or not, can’t help but notice that his neighbors are
+watching him—and well they might.”
+
+“I don’t see why,” cried Jane, “Mr. Fleck did not have old Mr. Hoff
+locked up right away. He could not do any more damage then, or be
+sending any more messages about our transports.”
+
+“That wouldn’t have done the least bit of good,” said Carter
+decisively. “Watching our transports sail and spreading the news is
+only one of many of their activities. Somewhere in this country there
+is a master-council of German plotters, directing the secret movements
+of many hundreds, perhaps many thousands of spies and secret agents.
+They have their work well mapped out. They have men fomenting strikes
+in the government shipyards and stirring up all kinds of labor
+troubles. Others are busy making bombs and contriving diabolical
+methods of crippling the machinery in munition plants. A flourishing
+trade in false passports is being carried on, enabling their spies to
+travel back and forth across the Atlantic in the guise of American
+business men, ambulance drivers, Red Cross workers and what not. Still
+others of their agents are detailed to arrange for the shipping of the
+supplies Germany needs to neutral countries. By watching shipping
+closely they gather information, too, that is of value to the U-boat
+commanders. Every time there is any sort of activity against the draft,
+or peace meetings, or Irish agitation, we find traces of German
+handiwork. We have dismantled and sealed up every wireless plant we
+could find in America except those under direct government control, yet
+we are positive that every day wireless messages go from this country
+somewhere—perhaps to Mexico or South America, and from there are
+relayed to Germany, probably by way of Spain. Think of the enormous
+amount of money required to finance these operations and keep all these
+spies under pay. While we try to thwart their plans as we find them,
+all our efforts are constantly directed toward discovering who controls
+and finances their damnable system. We seldom if ever arrest any of the
+spies we track down, but keep watching, watching, watching, hoping that
+sooner or later the master-spy will be betrayed into our hands.”
+
+“You don’t think then,” said Jane disappointedly, “that old Mr. Hoff is
+one of the important spies.”
+
+“We can’t tell yet. He may be just one of the cogs—perhaps what they
+call a control-agent. We don’t know yet. Germany has been building up
+her spy system forty years, and it is ingenious beyond imagination. Her
+codes are the most difficult in the world. It took the French three
+years and a half to decipher a code despatch from Von Bethmann Hollweg
+to Baron von Schoen. By the time they had it deciphered in Paris the
+Germans had discovered what they were doing and had changed the code.
+It is seldom any one of the German spies knows much about the work that
+other spies are doing. The rank and file merely get orders to go and do
+such a thing, or find out about such a thing. Often they are not told
+what they are doing it for. They obey their orders implicitly in detail
+and make their reports, get new orders and go on to do something else.
+Only their master spy-council here knows what the summary of their
+efforts amounts to. Arresting old Hoff, or a dozen more like him, would
+not cripple them much. Other men would be assigned in their places, and
+the nefarious work would go on.”
+
+“I don’t know,” insisted Jane thoughtfully. “I believe that old Mr.
+Hoff is a far bigger spoke in the wheel than you think. I watched his
+face as I followed him this morning. He is a man of great intelligence,
+and I should judge a man of education.”
+
+“They’d hardly be using a man of that sort to carry messages,” objected
+Carter. “Maybe you’re right. We have not watched him long enough to
+find out. We’ve got nothing yet on the young fellow. Maybe he’s the
+real boss of the outfit. At any rate he is the one the Chief is anxious
+to have you keep tabs on. Are you to see him again?”
+
+“Oh, yes,” the girl answered quickly, a touch of color coming to her
+face, “I think so. I asked him to come to see me. I think—in fact I’m
+sure—he will. Do you want me to watch the bookshop to see if they leave
+any more messages there?”
+
+“No,” said Carter. “I’ve got one of my men assigned to that. You keep
+after the young fellow. Say, does your father keep an automobile?”
+
+“Yes, but it’s been put up for the winter. We’re going to bring it out
+as soon as Dad can find a chauffeur. Our man—the one we had last
+year—has been drafted, and good chauffeurs are scarce now. Why did you
+ask?”
+
+“I’ll find you a chauffeur,” said Carter decisively.
+
+“You mean”—Jane hesitated—“a detective?”
+
+Carter grinned.
+
+“An agent like you and me. K-27 is an expert chauffeur and mechanic
+with fine references. His last job was with the British High
+Commission, and they gave him good testimonials.”
+
+“What do you want him to do?”
+
+“Driving the Strong car makes a good excuse for him to be around
+without exciting suspicion. He might even come up-stairs once in a
+while to get orders or do little repair jobs around the apartment. Some
+day, supposing the people next door were all out, he might even succeed
+in planting a dictograph so that you could sit there in your room and
+hear all that was going on and what the Hoffs talked about. That would
+help a lot. If ever he was caught prowling about the hall, the fact
+that he was your chauffeur would provide him with an alibi. Do you
+think you can fix it up with your father?”
+
+“I’m sure of it. When can he come?”
+
+“The sooner the better—to-night—to-morrow.”
+
+“I’ll tell Dad at dinner to-night that I’ve learned of a good chauffeur
+and have asked him to come in at eight this evening.”
+
+“Fine,” said Carter. “He’ll be there. And don’t forget to report once a
+day to the Chief.”
+
+“I won’t.”
+
+“And if anything unexpected turns up,” said Carter, “and you need help,
+take a good look at that nurse that is passing.”
+
+Jane turned curiously to inspect a buxom girl in a drab nurse’s costume
+who was wheeling a baby carriage along the sidewalk near-by. Seeing
+herself observed the girl stopped, and at a sign from Carter wheeled
+her charge up to where they were standing.
+
+“K-22,” said Carter, “I want to introduce you to K-19.”
+
+Gravely the two girls, nodding, inspected each other.
+
+“She always wears a blue bow at her neck,” Carter added, “so you can
+recognize her by that.”
+
+The girl smilingly nodded again and wheeled the carriage on up the
+Drive.
+
+“Who is she?” Jane asked eagerly, turning to Carter.
+
+“Just K-22,” said the agent, “and all she knows about you is that you
+are K-19. That’s the way we work in the service mostly. The less one
+operative knows about another the better, for what you don’t know you
+can’t talk about.”
+
+“Doesn’t she even know my name?” persisted Jane.
+
+“She may have found it out for herself while she has been watching the
+Hoffs, but we didn’t tell her. Nobody in the service knows who you are
+except the Chief and myself—and of course K-27 will have to know if he
+takes the chauffeur’s job.”
+
+“What is his name?”
+
+“I don’t know yet,” said Carter gravely. “I haven’t seen his
+references, so I don’t know what name they are made out in. You can
+find out what to call him when he reports to-night. You’ll see that he
+gets the job?”
+
+“Indeed I will,” answered Jane, experiencing a sense of relief at the
+prospect of having some one at hand in the household with whom she
+could discuss her activities.
+
+And as she had anticipated she had little difficulty in interesting her
+father in the subject of a new chauffeur. Mr. Strong for several days
+had been trying to find one without success.
+
+“You say this man’s last place was with the British High Commission.”
+
+“Some one of the girls was telling me,” she prevaricated. “I asked her
+to tell him to come here to-night at eight. He ought to be here any
+minute.”
+
+Presently the candidate for the place was announced.
+
+“Mr. Thomas Dean to see about a chauffeur’s position,” the maid said as
+she brought him in, and while her father questioned him, Jane studied
+him carefully.
+
+He could not be more than thirty, she decided, and the voice in which
+he answered her father’s questions was surely a cultivated one. It
+would not have surprised her in the least to have learned that he was a
+college man. Even in his neat chauffeur’s uniform he seemed every inch
+a gentleman. He had been driving a car for twelve years, he explained.
+No, he did not drink and had never been arrested for speeding.
+
+“Are you a married man?”
+
+Jane listened curiously for his answer to this question of her
+father’s. Surely it would be far more interesting if he wasn’t. Of
+course, he was a chauffeur and a detective, but somehow she could not
+help feeling, perhaps because of his easy manner, that more than likely
+most of the cars he had driven were cars that he himself had owned.
+K-27 she decided was going to be quite a satisfactory partner to work
+with.
+
+“There’s just one thing,” said her father. “You say you are not
+married. I can’t understand why it is that you are not in the army.”
+
+“I am not eligible,” said Thomas Dean calmly, though Jane thought she
+could detect a twinkle in his eye. “One of my legs has been broken in
+three places.”
+
+“But there are things a young fellow can do for his country besides
+marching,” insisted Mr. Strong. “The government needs mechanics, too.”
+
+“I know,” said Thomas Dean, almost humbly, “but I have a mother, and my
+father is dead.”
+
+Jane smiled a little to herself at his answer. She noted how carefully
+he had avoided saying anything about having a mother to support. It
+would not have surprised her in the least to have learned that he was a
+millionaire, yet her father, ordinarily shrewd in judging men,
+apparently was satisfied.
+
+“Supporting a mother, I suppose, comes first,” he said. “Well, Dean,
+when can you come?”
+
+“To-morrow morning if you like,” the new chauffeur answered, nodding
+gravely to Jane as he withdrew.
+
+Mr. Strong, as soon as they were alone, spoke enthusiastically about
+the young man, complimenting Jane on having discovered him, and as he
+did so a revulsion of feeling swept over her. For the first time she
+realized into what duplicity her work for the government was leading
+her. She had pledged her word to Chief Fleck that she would keep her
+activities an absolute secret even from her parents. Already she was
+deceiving them, bringing into the household an employee who really was
+a detective, a spy. She was tempted to tell her father, at least, what
+she was doing. He, she knew, was filled with a high spirit of
+patriotism. While he might not wholly approve of what she herself was
+doing she might be able to convince him of the necessity of it. If she
+could only tell him, her conscience would not trouble her, but there
+was her promise—her sacred promise; she couldn’t break that.
+
+While with troubled mind she debated with herself between her duty to
+her parents and her duty to her country, one of the maids came in with
+a box of flowers for her.
+
+Eagerly she cut the string and opened the box. Chief Fleck especially
+wanted her to cultivate young Hoff’s acquaintance. If her suspicion as
+to the sender were correct, she could feel that she had made an
+auspicious beginning.
+
+In a tremor of excitement she snatched off the lid of the box and tore
+out the accompanying card from its envelope.
+
+“Mr. Frederic Johann Hoff,” it read, “in appreciation of a most
+profitable afternoon.”
+
+Wondering at the peculiar sentiment of the card she tore off the
+enclosing tissue paper from the flowers. Orchids, wonderful, delicately
+tinted orchids, nestled in a sheaf of feathery green fern—five of them.
+
+“Five orchids—the fifth book—a profitable afternoon.”
+
+Jane felt sure now she had betrayed the government’s watchers to at
+least one of the watched.
+
+
+
+
+CHAPTER VII
+THE WOMAN ON THE ROOF
+
+
+It is amazing how much information on any given subject any one—even a
+wholly inexperienced person like Jane Strong—can acquire within a few
+days when one’s mind is set resolutely to the task. It is much more
+amazing how much one can learn when aided and abetted by an experienced
+chauffeur, or more properly speaking a mysterious and cultured secret
+service operative, masquerading as an automobile driver.
+
+Who Thomas Dean was, why he was in the secret service, and what his
+real name was, were questions that kept perpetually puzzling Jane. In
+the presence of her father and mother, so skilful an actor was he that
+it was hard to believe him anything but what he appeared to be, a
+respectful, intelligent and prompt young man who knew the traffic
+regulations and the anatomy of automobiles. When he and Jane were by
+themselves he invariably threw off his mask to some extent. He became
+the director instead of the directed, though never letting anything of
+the personal relation creep in. That he was college-bred, Jane felt
+certain. He spoke both German and French much better than she did. He
+occasionally used words that no ordinary chauffeur would be likely to
+know the meaning of. Sharing the secret of such a mission as theirs,
+they quickly found themselves on a friendly basis, yet the girl
+hesitated whenever her curiosity prompted her to try to find out
+anything that would reveal his identity. There was always present the
+feeling that any exhibition of undue curiosity on her part would be a
+disappointment to her employer. The chief disapproved of curiosity
+except on one subject—what the Germans were doing.
+
+Many things Jane and her aide learned about the Hoffs in the days
+following Thomas Dean’s coming, reporting them all as directed. Of how
+much or of how little value her discoveries were Jane had no means of
+knowing. Chief Fleck seemed satisfied but was always urging her to
+acquire more information and more details, always details. Dean, too,
+had seconded the warning about observing even what seemed to be
+insignificant trifles.
+
+“Most of the Germans,” he said to her, “you will find are very
+methodical. They like to do things according to schedule. For instance,
+I learned yesterday that old Hoff and his nephew frequently go off on
+all-day automobile trips. They always go on Wednesday.”
+
+“Are they going to-morrow?”
+
+“The presumption is that they will. They have done so every Wednesday
+for six weeks.”
+
+“Can’t we follow them in our car?” cried the girl, “and see what they
+are up to?”
+
+Dean shook his head.
+
+“The Chief is looking out for that. There is more important work for us
+to do right here. I want to try to install a dictograph in their
+apartment.”
+
+“How exciting.”
+
+“You must find some excuse for me to come up into your apartment and
+see to it that none of your people are about.”
+
+“That will be easy. Mother and Aunt will be out all day, and it is
+cook’s afternoon off. I can easily send the maids out.”
+
+“But that’s not all. There is the Hoffs’ servant to be disposed of.”
+
+“I don’t see how I can manage that,” said Jane. She could think of no
+possible way of overcoming that difficulty.
+
+“She’s an old German woman—Lena Kraus,” continued Dean. “I’ve found out
+that she always washes on Wednesdays. When she goes up on the roof in
+the afternoon to get the clothes will be our time. It will be your job
+to see that she stays there until I am through. It will not take me
+more than half an hour.”
+
+“But what will I do if she starts to come down? How will I stop her?”
+
+“You’ll have to use your wits. Keep her talking as long as you can.
+When she starts down come with her. Press the elevator button four
+times. I’ll leave the door of the Hoff apartment open and very likely
+will hear it in time to get away.”
+
+“But how’ll you get their door open?”
+
+Dean smilingly drew forth a key.
+
+“I borrowed the superintendent’s bunch last night, pretending I had
+lost the key to my locker in the basement. I knew he had a master-key
+that unlocks all the apartment doors, and there was no trouble in
+picking it out. I had some wax in my hand and made an impression of it
+right under his nose.”
+
+“How clever,” cried Jane, “but suppose the Hoffs do not go off
+to-morrow. What will we do then?”
+
+“You are taking tea with young Hoff this afternoon, aren’t you?”
+
+“Yes,” said Jane, “that is, he asked me to. I am to meet him at the
+Biltmore at five.”
+
+“When you’re with him propose doing something together to-morrow
+afternoon. See what he says.”
+
+“That’s an excellent idea. I’ll ask him to go to the matinée with me.”
+
+“That will do splendidly. Has he been with that navy officer lately?”
+
+“Not since Sunday, to my knowledge. I wonder if old Mr. Hoff has left
+any more cipher messages at the bookshop?”
+
+“No,” said Dean, “he hasn’t. The place has been constantly watched, but
+he hasn’t been near it since that first day.”
+
+“I’m afraid,” sighed Jane despondently, “I betrayed the fact that we
+were watching them to the nephew. He overheard me talking to Carter
+about the ‘fifth book,’ and of course he knew what it meant. I’m
+certain the old man is still reporting about our transports. Every day
+I can hear some one telephoning to him. He waits for the message, and
+then he goes out.”
+
+“He certainly is expert in eluding shadowers,” admitted Dean. “Every
+day he has been followed, but always he manages to give the operatives
+the slip. He must know he is being watched.”
+
+“I’m anxious to know what the nephew will say to me to-day,” said Jane.
+“I know he knows what I am doing. He looks at me in such an amusedly
+superior way every time he sees me.”
+
+“Be careful about trying to pump him,” cautioned Dean. “He strikes me
+as by far the more intelligent of the two. It would not surprise me in
+the least if he were not old Hoff’s nephew at all, but really his
+superior, sent over especially by Wilhelmstrasse to take charge of the
+plotters. He doesn’t in the least resemble old Hoff.”
+
+“No indeed, he doesn’t,” admitted Jane. “He certainly is clever, too.
+We haven’t learned a single thing that incriminates him, have we?”
+
+“Nothing definite, yet everything taken together looks damaging enough.
+Here is a young German of military age and appearance, who arrived from
+Sweden just before we went into the war. He has plenty of money and
+spends his time idling about New York, in frequent communication with
+at least one navy officer. He selects a home overlooking the river from
+which our soldiers are departing for France. You yourself saw him
+pursuing K-19—the other K-19—who a few hours afterward was found
+murdered.”
+
+“Things don’t look right,” Jane agreed, yet a few hours later as she
+sat opposite the young man at tea, she found herself doubting. It
+seemed incredible, impossible, that Frederic Hoff could be a murderer.
+Her instinctive sense of justice forced her to admit that it was hard
+for her to believe him even a spy. He seemed so cultured, so clean, so
+straightforward, so nice. If she had not seen that unforgettable look
+of hate on his face that night as she watched him from the window she
+could not, she would not have believed evil of him.
+
+The tremor of nervous excitement in which she met him quickly passed,
+and she found herself once more chatting intimately with him and
+enjoying it. He talked well on practically all subjects, showing
+reserve only when she tried to draw him out about himself. Her previous
+experiences with the opposite sex had taught her that most men’s
+favorite topic of conversation is themselves, but Mr. Hoff appeared to
+be the exception. Adroitly he baffled all her efforts to get him to
+discuss his family, his achievements, or his past, even when she sought
+to encourage intimacy by telling about her brother who was abroad in
+Pershing’s army.
+
+“You must let me be your big brother while he is away,” her escort had
+suggested gallantly.
+
+“All right, brother,” she had challenged him. “I’ll take you on at
+once. I have seats for a matinée to-morrow. I’d much rather go with a
+brother than with one of the girls.”
+
+“I would be delighted,” he answered unsuspectingly, “but unfortunately
+I have an engagement that takes me out of town.”
+
+“We’ll go next week, then—Wednesday.”
+
+“A week is too long to wait. Let me take you to a matinée on Saturday.”
+
+Jane hesitated. At times her conscience troubled her not a little.
+While satisfied that the importance of her trust wholly justified her
+actions, she disliked any deception of her family.
+
+“Wouldn’t it be better,” she parried, “if you came to call on me some
+evening first? You’ve only just met my mother, and I would like you to
+know Dad, too.”
+
+“May I?” he cried with manifest pleasure. “How about to-morrow
+evening?”
+
+“That’s Wednesday,” she answered slowly. That was the day she and Dean
+were planning to put in a dictograph. She wondered at herself calmly
+carrying on this casual conversation with the man she was planning to
+betray. Coloring a little from the very shame of it, she continued,
+“How about making it Thursday evening?”
+
+“Delighted,” cried Hoff, “and about Saturday’s matinée—what haven’t you
+seen?”
+
+Glad for the respite of at least twenty-four hours, Jane, as they
+talked, watched his face, his expression, his eyes. Regardless of the
+things she believed about him, he impressed her as honest and sincere.
+Certainly there was no mistaking the fact that his liking for her and
+his delight in her society were wholly genuine. Her heart warned her
+that it was his intention to press their new-formed acquaintance into
+close intimacy. Was he, she wondered, like herself, pretending
+friendship merely to unmask secrets for his government? No, she could
+not, she would not believe it. She felt sure that his admiration was
+unfeigned. Something told her that quickly his ardor and determination
+might lead her into embarrassing circumstances. He might even ask her
+to marry him. For a moment she was overcome with timidity and tempted
+to stop short on her new career, but there came to her the thought of
+the brave Americans in the trenches, of the soldiers at sea, of the
+brutal, lurking U-boats, and sternly she put aside all personal
+considerations.
+
+“You spoke of going out of town,” she said when the subject of the
+matinée had been disposed of. “Don’t you find train travel rather
+disagreeable these days?”
+
+“Fortunately I’m motoring.”
+
+“That will be nice, if you don’t have to travel too far.”
+
+“It is quite a distance for one day, but I am used to it. I make the
+trip often.”
+
+Feeling that at least she had learned something, Jane rose to go. She
+knew that both the Hoffs would be out of the way to-morrow. The
+inference from his last remark was that they were going to the same
+place they had gone on previous Wednesdays. That was something to
+report to Mr. Fleck.
+
+“My car is outside,” she said as they rose. “Can’t I take you home?”
+
+“Sorry,” said her host, “but I am dining here to-night. Lieutenant
+Kramer is to join me.”
+
+“Remember me to him,” she said as he escorted her to the automobile,
+driven by Dean.
+
+A block away from the hotel she tapped on the glass, and as Dean
+brought the car to a stop she climbed into the seat beside him. Only a
+week ago she would have criticized any girl who rode beside the
+chauffeur. In fact she had spoken disapprovingly of a girl in her own
+set who made a habit of doing it, but now she never gave it a thought.
+Many things in her life seemed to have assumed new aspects and values
+since she had entered on a career of useful activity. In her was
+rapidly developing something of her father’s ability and directness. As
+she wanted to talk confidentially with Dean, she went the easiest way
+about it, entirely regardless of appearances.
+
+“Apparently you carried it off well,” he commented.
+
+“I hope so,” she answered, coloring a little. “They’re making their
+usual Wednesday motor trip.”
+
+“He did not tell you their destination?”
+
+“No, but Lieutenant Kramer is dining with him to-night at the
+Biltmore.”
+
+“Fine. Those things the Chief can take care of. That leaves the way
+clear for us to-morrow afternoon.”
+
+“What excuse will I make for having you come up to the apartment?”
+
+“You want me to change some pictures. That will account for the wire if
+I’m caught.”
+
+“I hope no one sees you.”
+
+“Nobody’ll see me but the elevator man, and he’ll think nothing of it.”
+
+Apparently, too, Dean was right, for the next afternoon he entered the
+Strong apartment carrying a suitcase in which was concealed his
+apparatus and the necessary wire.
+
+“Hurry,” cried Jane, who was waiting for him. “The Hoffs’ maid has just
+gone up on the roof.”
+
+“We can safely give her at least a few minutes,” said Dean setting to
+work to make a hole through the wall into the apartment adjoining. Just
+as he had finished making it and had pushed one end of the wire
+through, the telephone bell rang, and Jane in dismay sprang to answer
+it.
+
+“Disguise your voice,” warned Dean. “If it is a caller say there is no
+one home.”
+
+“It was Lieutenant Kramer calling,” said Jane as she returned.
+
+“Did he recognize your voice?”
+
+“I don’t think so.”
+
+“What did he say?”
+
+“He said to tell Miss Strong that he had called.”
+
+“Then he didn’t suspect you.”
+
+“Isn’t there danger, though, that he may come up to the Hoff
+apartment?”
+
+Dean sprang to the window and looked out at the street below.
+
+“No, there he goes up the street. He evidently did not try to see if
+the Hoffs were at home. That’s funny.”
+
+“Why funny?”
+
+“It means of course that he, too, knows about those Wednesday trips the
+Hoffs make.”
+
+Cautiously he opened the door into the public hall. There was no one
+about. Catlike in swiftness and silence he moved to the Hoff door and
+inserted his new-made key. It worked perfectly.
+
+“Now,” he whispered to Jane, “to the roof—quick. I must not be taken by
+surprise. Give me at least ten minutes more—fifteen if you can.”
+
+Quickly he passed inside, closing the door behind him all but a barely
+noticeable crack, as Jane rang for the elevator and bade the operator
+take her to the roof. As she emerged there and stood waiting for the
+elevator to descend again, an ornamental lattice screened her from the
+rest of the roof. Cautiously and curiously she peered between the
+slats, trying to see what the Hoff servant was doing at the moment. She
+decided that she would not reveal her presence until the woman made
+ready to go down-stairs.
+
+As from behind her screen she scanned the roof she espied old Lena over
+on the side next the river bending over a half-filled basket of
+clothes, apparently putting into the basket some of the freshly dried
+laundry from the lines extending all over the roof. As Jane watched her
+the old woman straightened herself up and cast a cautious glance about.
+Apparently satisfied that she was alone she whipped out something from
+a pocket in her apron and turned in the direction of the river.
+
+Jane gasped in amazement, a thrill of excitement sweeping over her at
+this new discovery. It was plain that the old servant was studying the
+transports in the river below through a pair of powerful field glasses.
+Curiously Jane observed her, wondering what she was trying to
+ascertain, wondering if through the glasses she was able to identify
+the battleships and other boats. Old Lena’s next move was still more
+puzzling. Hastily dropping her glasses into the basket she began to
+hang again on the line some of the clothes. They were handkerchiefs,
+Jane noted interestedly, one large red one, and the rest white, some
+large, some small, a whole long row of nothing but handkerchiefs.
+
+All at once it came to Jane what it must mean. The arrangement of the
+handkerchiefs must be some sort of a code. She studied the way they
+were placed, committing the order to memory. “Red—two large—one
+small—one large—one small.” Of course it was a code, a signal to some
+one aboard one of the ships.
+
+The line of handkerchiefs completed old Lena once more took up her
+glasses, first looking around as before to see if any one were on the
+roof. How Jane wished that she, too, could see the ships from where she
+stood. Was some traitor in the navy wigwagging to the old woman? She
+was tempted to spring forward and seize her and stop this dastardly
+signalling, but she remembered her duty. She was there to see that Dean
+was not surprised by old Lena’s return. So long as the woman kept
+signalling he was safe.
+
+Once more the laundress dropped her glasses and began frantically
+rearranging the handkerchiefs. Again Jane noted their order—red—two
+small—one large—three small—two large. Again the laundress resorted to
+the glasses, and at last, apparently satisfied, began taking down the
+rest of the laundry and making ready to leave the roof. Trying to act
+as if she had just arrived, Jane stepped boldly forward.
+
+“I wonder,” she said approaching the woman, “if you can tell me where I
+can find a good laundress.”
+
+“_Nicht versteh_” said old Lena, eyeing her suspiciously and hostilely,
+and at the same time attempting to pass her with the basket of clothes.
+
+Deliberately blocking the way, Jane repeated her question, this time in
+German, feeling thankful that her language studies at school were not
+wholly forgotten and that they had included such practical phrases as
+those required to hire and discharge maids and complain about the
+quality of their work.
+
+“I know no one,” the old woman answered her, this time in English.
+
+Jane breathed fast with excitement. The laundress’ slip of the tongue,
+after denying that she understood, was evidence in itself of her
+deliberate duplicity. Realizing her mistake, the old woman now sullenly
+refused to answer any questions, merely shaking her head and trying to
+dodge past and escape.
+
+To prolong the questioning, Jane felt, would be only to arouse
+suspicion, and reluctantly she allowed old Lena to precede her to the
+elevator, anticipating her, however, in ringing the bell, pressing the
+button four times as Dean had directed. As they descended together she
+was almost in a panic. How long had she kept the laundress on the roof?
+She really had no idea. She had been so absorbed in her new discovery
+she had given no thought to the time. For all she knew she might have
+been there only five minutes. Had Dean had time to finish his work?
+
+Almost frenzied with anxiety, wondering if it were too soon, she moved
+forward in the car so as to obstruct old Lena’s view through the door
+as it opened. One glance showed her the Hoff door now tightly closed,
+and she thought she heard the door of her own apartment just closing.
+Suddenly she remembered that she had gone up on the roof without a key.
+It would be a pretty pass if Dean were still in the Hoff apartment and
+she couldn’t get into her own.
+
+All in a tremble she pressed the button of her own door, waiting,
+however, to see that the laundress was out of the hall. It was Dean who
+opened the door, and she all but fainted in his arms as she saw that he
+was back in safety.
+
+“It’s done,” he cried gleefully, as he caught her and drew her within,
+closing the door carefully behind her. “I just finished my work as you
+came down.”
+
+Great drops of perspiration still stood on his forehead and he was
+breathing rapidly.
+
+“Why, what’s the matter?” he cried, noticing for the first time Jane’s
+perturbation. “Was it too much for you? What happened?”
+
+“Put this down quick, quick,” gasped Jane, “Red—two large—one small—one
+large—one small—and then—red—two small—one large—three small—two
+large.”
+
+Wonderingly he complied, jotting down what she told him in his
+notebook, and turning to ask her what it meant, discovered that she had
+fainted.
+
+
+
+
+CHAPTER VIII
+THE LISTENING EAR
+
+
+“I don’t know what is the matter with Jane,” sighed Mrs. Strong a few
+days after the employment of the new chauffeur.
+
+“She’s not ill, is she?” responded her husband. “I never saw her
+looking more fit.”
+
+“She looks all right,” said her mother. “It is the peculiar way she is
+acting that bothers me. She spends hours and hours moping in her room,
+and then there are times when she takes notions of going out and is
+positively insistent that she must have the car.”
+
+“Maybe she’s in love,” suggested Mr. Strong, resorting to the common
+masculine suspicion.
+
+“With whom?” retorted his wife indignantly. “I don’t believe there is
+an eligible man under forty in all New York. None of the men are
+thinking about marriage these days. They all want to go to France, even
+the married ones. I believe you’d go yourself if you were a few years
+younger.”
+
+“I certainly would,” announced her husband enthusiastically.
+
+“Jane tells me she is writing a novel,” Mrs. Strong continued, “and
+that’s why she stays in her room so much. I hope she won’t turn out to
+be literary.”
+
+“Don’t worry,” advised Mr. Strong. “With all the men off to war you’ll
+find young women doing all kinds of funny things to work off their
+energy. If a girl can’t be husband-hunting, she’s got to be doing
+something to keep busy. There are worse things than trying to write
+novels. Jane is all right. Let her alone.”
+
+So, even though her mother’s suspicions had been aroused, the girl in
+the next few days managed to spend many hours with her ears glued to
+the receiver of the dictograph without being discovered. In the Hoffs’
+apartment Dean had succeeded in locating it over the dining-room table,
+concealed in the chandelier, and in Jane’s room the other end rested in
+the back of a dresser drawer that she always carefully locked when
+absent.
+
+The novelty of listening for bits of her neighbors’ conversation
+quickly wore off. To sit almost motionless for hours listening,
+listening intently for every sound, hearing occasional words spoken
+either in too low tones or too far distant to make them understandable,
+to record bits of conversation that sounded harmless, yet might have
+some sinister meaning, became a most laborious task. Yet persistently
+Jane stuck at it. The greater knowledge she gained of the plottings of
+the German agents, the more important and vital she realized it was for
+every clue to be diligently followed in the hope that the trail might
+at last reach the master-spy, whose manifold activities were menacing
+America.
+
+In general she was disappointed with the results of her listening. To
+be sure they had furnished indisputable evidence of something they
+already had ascertained—that old Hoff, despite being a naturalized
+American, still was a devoted adherent of the ruler of Germany. Nightly
+as he and his nephew sat down to dinner she could hear his gruff,
+unpleasant voice ceremoniously proposing always the same toast:
+
+“Der Kaiser!”
+
+Even when the younger Hoff was dining out, as he sometimes did, Jane
+could hear the old man giving the toast, presumably with only the old
+servant for an auditor. That the woman, too, was a spy, as well as
+servant, Jane had known since the day on the roof, but so far neither
+she nor Dean had been able to make anything out of her handkerchief
+code, though both were sure the messages related to the sailings of
+transports.
+
+Only once had she heard anything that she deemed really important. One
+evening, as uncle and nephew dined, there had been an acrimonious
+dispute.
+
+“Have you it yet?” the uncle had asked in German.
+
+“Not yet,” Frederic had answered.
+
+His seemingly simple reply for some reason appeared to have stirred the
+elder man’s wrath. He broke into a volley of curses and epithets,
+reproaching his nephew for his delay. In the rapid medley of oaths and
+expostulations Jane could distinguish only occasional
+words—“afraid”—“haste”—”all-highest importance”—“American swine.” The
+younger Hoff had appeared to exercise marvelous self-control.
+
+“There is yet time,” he answered calmly.
+
+“Donnerwetter,” the old man had exclaimed. “There is yet time, you
+say—and Emil the wonder-worker almost ready has. It must be done at
+once.”
+
+The outburst over, old Hoff had subsided into inarticulate mutterings,
+evidently busy with his food, leaving Jane to wonder futilely who Emil
+might be, what he meant by the “wonder-worker,” and what particular
+task had been assigned to the nephew that must be performed
+immediately. She had hastened to report this conversation in detail to
+Chief Fleck, but if he understood what it was about he had taken
+neither Jane nor Thomas Dean into his confidence.
+
+Other things, too, Jane had learned and reported, which she knew the
+chief appreciated even though he was sparing in his thanks and
+compliments. She had learned through her almost constant listening that
+Lieutenant Kramer was a regular visitor, coming to the Hoff apartment
+or seeing Frederic Hoff somewhere every other day. Unfortunately he was
+always conducted into one of the inner rooms, so that no more of the
+conversation than the ordinary greetings and farewells ever reached
+Jane’s ears. The mere fact of his coming so regularly to the Hoffs
+convicted him of treachery, in Jane’s mind. What proper business could
+an American naval officer have in the home of two German agents? The
+excuse that Frederic Hoff was a delightful and entertaining friend was
+entirely too flimsy and unsatisfactory.
+
+Nothing that she had overheard—and within her heart she felt glad that
+it was so—in any way as yet incriminated young Hoff. When she dared to
+think about it, she found herself almost believing, certainly at least
+wishing, that the nephew was not involved in his uncle’s activities.
+Most of his time, in fact, was spent out of the apartment. He
+frequently went out early in the morning, not returning until the early
+hours of the next morning. The old man, on the contrary, always stayed
+at home until eleven o’clock. At that hour his telephone would ring.
+The telephone was located near the dining room, so Jane could easily
+hear his conversations. Invariably some brief message was given to him,
+a name, which he repeated aloud as if for verification.
+
+As Jane overheard them she had set them down:
+
+Thursday—“Jones.”
+Friday—“Simpson.”
+Saturday—“Marks.”
+Sunday—“Heilwitz.”
+Monday—“Lilienthal.”
+Tuesday—“Wheeler.”
+
+
+As she sat by the hour listening Jane kept pondering over these names.
+What could they mean? Were they, too, a code of some sort? Always, as
+soon as this word had come to him, old Hoff went out. Could they be,
+she wondered, passwords by which he gained access somewhere to
+government buildings or places where munitions were being made or
+shipped?
+
+Meanwhile her acquaintance with Frederic Hoff had been progressing
+rapidly. As she had suggested he had called on her and had been
+presented to her father, and on the next Saturday they had gone to a
+matinée together. She had been eager to see what her father thought of
+him, for Mr. Strong, she knew, was regarded as a shrewd judge of men.
+
+“What does that young Hoff do who was here last night?” her father had
+asked at the breakfast table.
+
+“He’s in the importing business with his uncle, I think,” she had
+answered.
+
+“Where’d you meet him?”
+
+“He lives in the apartment next door. Lieutenant Kramer introduced
+him.”
+
+“He’s German, isn’t he?”
+
+“Oh, no,” said Jane, almost unconsciously rallying to defend him, “he
+was born in this country.”
+
+“Well, it’s a German name.”
+
+“Don’t you like him?”
+
+“He talks well,” her father said, “and seems to be well-bred.”
+
+It was with reluctance, too, that Jane admitted to herself that the
+better acquainted she became with Frederic Hoff the more fascinating
+she found his society. She was always expecting that by some word or
+action he would reveal to her his true character. At the matinée she
+had waited anxiously to see what he would do when the orchestra played
+the national anthem. To her amazement he was on his feet almost among
+the first and remained standing in an attitude of the utmost respect
+until the last bar was completed. If he were only pretending the rôle
+of a good American, he certainly was a wonderful actor. As her
+admiration for him increased and her interest in him grew she found
+that almost her only antidote was to try to keep thinking of his face
+as she had seen it the night that K-19—the other K-19—had been so
+mysteriously murdered. She kept wondering if Chief Fleck had made any
+further discoveries about the murder and resolved to ask him about it
+at the first opportunity. She therefore was delighted when on Tuesday,
+as she made her regular report by telephone, he asked if she could come
+to his office that afternoon with Dean to discuss some matters of
+importance. They found Carter already with the chief when they arrived.
+
+“Thanks to your work, Miss Strong, and to Dean’s dictograph,” said the
+chief, “we have made considerable progress. We have learned a lot more
+about the cipher messages.”
+
+“You have learned it through me,” cried Jane in amazement.
+
+“Yes,” said the chief, smiling, “from that list of names you reported.”
+
+“What were they, a cipher, a code?” questioned the girl breathlessly.
+
+“No, nothing like that. They are merely the names of various innocent
+and unsuspecting booksellers in various parts of the city.”
+
+“How did you discover that?”
+
+“In the simplest and easiest way possible. I listed all the names you
+reported and studied them carefully, trying to find their common
+denominator. They were not in the same neighborhood, so it was not
+locality. They were not all German, so it was not racial. I looked them
+up in the telephone directory, checking up the numbers of the
+telephones of the Jones, the Simpsons, but that gave no clue. Then, as
+I looked through the telephone lists, I discovered that there was a
+bookstore kept by a man of each name. Then I understood. It is a simple
+plan for throwing off shadowers.”
+
+“You mean that Mr. Hoff goes to a different bookstore each day to leave
+a code message?”
+
+“That’s it. The spy who gets the messages each morning calls him up by
+’phone, mentioning just the one word. From that Mr. Hoff knows just
+where to go, concealing the message in a book before agreed upon.”
+
+“The fifth book,” interrupted Dean.
+
+“Not always,” explained Fleck. “It depends on whether there are five
+letters in the name telephoned. I have located and copied several more
+of the messages.”
+
+“But who gets the messages he leaves? Who takes them away from the
+bookshops?” asked Jane, mindful of her own failure in that respect.
+
+“It’s a girl, or rather two girls together, though possibly only one of
+them is in the plot. Very likely the other may not know what her
+companion is doing.”
+
+“To whom does this girl take them?”
+
+“That is still a mystery,” said the chief. “We have ascertained who the
+girl is, where she lives. Her actions have been watched and recorded
+for every hour in the twenty-four for the last three days, and yet we
+don’t know what she does with these messages. Carter has a theory—tell
+us about it, Carter.”
+
+“In accordance with instructions,” began Carter, as if he was making
+out a report, “I had operatives K-24 and K-11 shadow the party
+suspected. On two different occasions they followed her to a bookstore
+and back home again. She was accompanied on one occasion by her younger
+sister. Each time she went directly home and stopped there, neither she
+nor her sister coming out again, and no person visiting the apartment,
+but—”
+
+“Here’s the interesting part,” interrupted Fleck.
+
+“On both occasions within a couple of blocks of the bookstore she
+passed a man with a dachshund. She did not speak to the man, but each
+time she stopped to pet the dog.”
+
+“Was it the same man both times?” asked Dean.
+
+“Apparently not,” replied Carter, “but it may have been the same dog.
+Dachshunds all look alike.”
+
+“Go on,” said the chief.
+
+“Now my theory is that that girl was instructed to walk north until she
+met the man with the dog. I’ll bet anything that code message went
+under the dog’s collar. The next time she gets a message I’m going to
+get that dog.”
+
+“It seems preposterous,” scoffed Dean.
+
+“Rather it shows,” said Fleck, “that these spies all suspect they are
+being watched, and that they resort to the most extraordinary methods
+of communication to throw off shadowers. They have used dachshunds
+before. There’s a New England munition plant to which they used to send
+a messenger each week to learn how their plans for strikes and
+destruction were progressing. They put a different man on the job each
+time to avoid stirring up suspicion. At the station there would always
+be two children playing with a dachshund. The spy would simply follow
+them as if casually, and they would lead him to a rendezvous with the
+local plotters. Now, Miss Strong,” he said, turning to Jane, “I brought
+you down here for two reasons. First, to give you an inkling of how
+important your task is, and second, to ask you to undertake still
+another task for us. Are you still willing to help?”
+
+“More than ever,” said the girl firmly.
+
+“The one disappointment is that we are getting no evidence whatever to
+involve or incriminate young Hoff. To-morrow, while he and his uncle
+are away on their usual auto trip, I am going to have the apartment
+thoroughly searched.”
+
+Jane’s face blanched. She recalled what a strain it had been on her
+nerves the day she watched on the roof while Dean installed the
+dictograph. She felt hardly equal to the task of ransacking desks and
+drawers.
+
+“There will be no one at home but the old servant. She can be easily
+disposed of. It is imperative that the search be made at once. There is
+evidence that what they are planning—evidently some big coup—is nearing
+the time for its execution. We must find it out in order to thwart
+them. I have got to know what old Hoff meant by the ‘wonder-worker!’ He
+said that it was nearly ready. I suspect that it is some new engine of
+destruction. We must prevent any disaster to transports or munition
+factories, if that’s what they have in mind.”
+
+“You think it’s a bomb plot?” asked Jane.
+
+“I don’t know what it is. These empire-mad fools stop at nothing.
+Nothing is sacred to them, women, children, property. With fanatical
+energy and ability they commit murders, resort to arson, use poisons,
+foment strikes, wreck buildings, blow up ships, do anything, attempt
+anything to serve the Kaiser. Karl Boy-ed spent three millions here in
+America in two months, and Von Papen a million more. What for? Ten
+thousand dollars to one man to start a bomb factory, twenty-five
+thousand dollars to another to blow up a tunnel. Millions on millions
+for German propaganda was raised right here, and it is far from all
+spent yet. We’ve got to find out what the wonder-worker is and destroy
+it before it destroys—God knows what.”
+
+“Very well,” said Jane with quiet determination, “I’ll search their
+apartment.”
+
+“No, not that,” said the chief, “I’ll send some fake inspectors to test
+the electric wiring, and they’ll do the searching. I do not know for
+sure that the Hoffs suspect you of watching them, but I’m taking no
+chances. It will be just as well for you and Dean to be out of the way
+to-morrow all day, so that you will have an alibi. Germany’s secret
+agents are suspicious of everybody. They do not even trust their own
+people. What I want you and Dean to do is to try to follow the Hoffs
+and see where they go. I don’t want to use the same persons twice to
+trail them as they may get suspicious.”
+
+“I can easily do that,” said Jane, feeling relieved. “I’ll tell Mother
+I want our car for all day.”
+
+“No, don’t use your own car. They might recognize it. I’ll provide
+another one. They gave two of my men the slip last week somewhere the
+other side of Tarrytown. Let’s hope they are not so successful this
+time.”
+
+“But won’t they recognize me?”
+
+“Not if you disguise yourself with goggles and a dust coat. Dean can
+make up, too. He had practice enough at college, eh, Dean?”
+
+Jane turned to look interestedly at Dean, who had the grace to color
+up. She was right then. He was a college man, working in the secret
+service not for the sake of the job but for the sake of his country.
+
+“Of course I can disguise myself too,” she said enthusiastically, a new
+zest in her work asserting itself, now that she knew her principal
+co-operator was probably in the same social stratum as herself.
+
+“You can rely on us, Chief,” said Dean, as they left the office
+together. “We’ll run them down.”
+
+As they emerged into Broadway and turned north to reach the subway at
+Fulton Street, Dean, with a warning “sst,” suddenly caught Jane’s arm
+and drew her to a shop window, where he appeared to be pointing out
+some goods displayed there. As he did so he whispered:
+
+“Don’t say a word and don’t turn around, but watch the people passing,
+in this mirror here—quick, now, look.”
+
+Jane, as she was bidden, glanced, at first curiously and then in
+recognition and amazement, at a tall figure reflected in the mirror, as
+he passed close behind her. It was a man in uniform. Regardless of
+Dean’s warning she turned abruptly to stare uncertainly at the military
+back now a few paces away.
+
+“Did you recognize him?” cried Dean.
+
+“It—it looked like Frederic Hoff,” faltered the girl.
+
+“It was Frederic Hoff,” corrected her companion, “Frederic Hoff in the
+uniform of a British officer, a British cavalry captain!”
+
+
+
+
+CHAPTER IX
+THE PURSUIT
+
+
+Masked by an enormous pair of motor goggles and further shielded from
+recognition by a cap drawn down almost over his nose, Thomas Dean in a
+basket-rigged motorcycle impatiently sat awaiting the arrival of Jane
+Strong at a corner they had agreed upon the evening before. He had been
+particularly insistent that Jane should be on hand at a quarter before
+eight. He had learned by judicious inquiries that always on
+Wednesdays—at least on the Wednesdays previous—the Hoffs had started
+off on their mysterious trips at eight sharp. His intention was to get
+away ahead of them and pick them up somewhere outside the city limits.
+
+Jane had promised that she would be on hand promptly. Once more he
+looked impatiently at his watch. It lacked just half a minute of the
+quarter, but there was no sign of his fellow operative. The only person
+visible in the block was a boy strolling carelessly in his direction.
+With a muttered exclamation of annoyance Dean restored his watch to his
+pocket, debating with himself how long he ought to wait and whether or
+not he had better wait if she did not appear soon. Very possibly, he
+realized, something entirely unforeseen might have detained her or have
+prevented her coming. Perhaps her family had doubted her story that she
+was going off on an all-day motor trip with a friend? Maybe their
+suspicions had been aroused by his having reported sick? He had almost
+decided to go on alone when he observed that the boy he had seen
+approaching was standing beside the motorcycle.
+
+“Good morning, Thomas,” said the boy, a little doubtfully, as if not
+quite sure that it was he.
+
+Dean gasped in astonishment. The boy’s voice was the voice of Jane.
+Laughing merrily at his amazement and discomfiture, she climbed into
+the seat beside him, asking:
+
+“How do you like my disguise?”
+
+“It’s great,” he cried. “You fooled me completely, and I was expecting
+you.”
+
+“When Chief Fleck said I ought to disguise myself for fear that the
+Hoffs already suspected me, I happened to remember these clothes. I had
+them once for a play we gave in school.”
+
+“But you don’t even walk like a girl.”
+
+Jane laughed again.
+
+“I practised that walk for days and days. When I first put on this suit
+my brother hooted at the way I walked. He said no girl ever could learn
+to walk like a boy. I made up my mind I’d show him.”
+
+“But your hair,” protested Dean, almost anxiously. Even if he was just
+now assuming the humble rôle of chauffeur he still was an ardent
+admirer of such hair as Jane’s, long, black and luxurious.
+
+“Tucked up under my cap,” laughed the girl, “and for fear it might
+tumble down, I brought this along. It’s what the sailor boys call a
+‘beanie,’ isn’t it?”
+
+As she spoke she adjusted over her head a visorlike woolen cap that
+left only her face showing.
+
+“But your mother—didn’t she wonder about your wearing those clothes?”
+
+“She was in bed when I left. All she caught was just a glimpse of me in
+Dad’s dust coat, and that came to my ankles. I wore it until I was a
+block away from the house. Will I do?”
+
+“You can’t change your eyes,” said Dean boldly, that is boldly for a
+chauffeur, but he knew that Jane knew he wasn’t a chauffeur except by
+choice, so that made it all right.
+
+“I couldn’t well leave them behind. I understood that I was to have a
+lot of use for my eyes to-day.”
+
+“Yes, indeed, you very likely will.”
+
+“Do you know I hardly recognized you at first and was almost afraid to
+speak? I had expected to find you in a car. What was the idea of the
+motorcycle?”
+
+“It was Chief Fleck’s suggestion. The Hoffs will be motoring. People in
+a car seldom pay any attention to motorcyclists. If we were to follow
+them in a motor they’d surely notice it. Last week they managed to
+dodge the people the Chief assigned to trail them. Maybe as two dusty
+motorcyclists we’ll have better luck.”
+
+“I hope so. Where do you intend waiting to pick them up?”
+
+“Getty Square in Yonkers is the best place. Everybody going north goes
+that way. I can be tinkering with the machine while you keep watch for
+them. They will not be apt to suspect a pair of Yonkers motorcyclists.
+There’s no danger of missing them.”
+
+“Did you tell the Chief about seeing Mr. Hoff in that uniform?”
+
+“Of course. He did not seem even surprised. Some one had reported to
+him already that there was a German going about in British uniform.”
+
+“What had he heard? What was the man doing?” questioned Jane anxiously.
+Even though she believed Frederic Hoff an alien enemy, even though she
+was all but sure that he was a murderer, she kept finding herself
+always hoping for something in his favor. He seemed far too nice and
+entertaining to be engaged in any nefarious, underhanded, despicable
+machinations. Yet she had seen him masquerading as a British officer.
+She could not doubt the evidence of her own eyes.
+
+“What happened was this,” continued Dean. “A woman—one of the society
+lot—was driving down Park Avenue day before yesterday morning in her
+motor. It had been raining, and the streets were muddy. At one of the
+crossings a British officer stopped to let the car pass. One of the
+wheels hit a rut, and his uniform was all splashed with mud. He burst
+into a string of curses—_German_ curses.”
+
+“He cursed in German?” cried Jane.
+
+“Sure,” said Dean. “On the impulse of the moment he forgot his rôle and
+revealed his true self—an arrogant Prussian officer.”
+
+“What did the woman do?”
+
+“Reported him to the first policeman she met, but by that time he had
+vanished, of course.”
+
+“What did Chief Fleck think about it?”
+
+“He didn’t seem to take the story seriously.”
+
+“Do you suppose it could have been Mr. Hoff?”
+
+“It must have been he, or one of his gang, at any rate. I don’t see why
+the Chief does not order his arrest at once. He is far too dangerous to
+be at large.”
+
+“There’s no real evidence against him yet,” protested Jane, “not
+against the young man, at least.”
+
+“Didn’t we both see him in British uniform?”
+
+“Yes,” admitted the girl.
+
+“Well, that’s proof, isn’t it? A man with a German name in British
+uniform in wartime can’t be up to any good.”
+
+“Still we have no actual evidence against him. We don’t know what he
+was doing.”
+
+“I’d arrest him then for murder and get the evidence that he is a spy
+afterward. It would be easy to fasten the murder of K-19 on him.
+There’s no doubt that he did that.”
+
+“Has a witness been found?” asked Jane with a quick catch of the
+breath. Somehow she never had been able to persuade herself that the
+man next door, whatever else he might be, had really committed that
+brutal murder.
+
+“No, there’s no actual witness, but it could be proved by
+circumstantial evidence. K-19, the man whose work you took up, had
+instructions to shadow young Hoff to his home. At two in the morning he
+relieved another operative. At three you yourself saw him shadowing
+Hoff.”
+
+“I saw two men on the sidewalk,” corrected Jane. “One of them was
+Frederic Hoff. I did not see the other distinctly enough to identify
+him. I saw no murder. I merely saw the two of them run around the
+corner.”
+
+“Look here,” said Dean sharply, not wholly succeeding in suppressing a
+note of jealousy in his tones, “I believe you are trying to shield
+Frederic Hoff. What is he to you? Has he won you over to his side?”
+
+“You’ve no right to say such things to me,” cried Jane, nevertheless
+coloring furiously. “I’ve seen the man only three or four times. I am
+working just as hard as you are to prove that he is a German spy, if he
+is one. I am only trying to be fair. I know nothing that convicts him
+of murder. Any testimony I could give would not prove a single thing.”
+
+“Certainly not, if that’s the way you feel about it,” snapped Dean.
+
+After that they rode along together in silence, each busy with thoughts
+of their own. Dean was cursing himself for having let his enthusiasm to
+be of service to his government lead him into such circumstances. He
+felt that his chauffeur’s position handicapped him in his relations
+with Jane, to whom he had been strongly attracted from the beginning.
+The son of a distinguished American diplomat, he had been educated for
+the most part in Europe. Friends of his father, when he had offered his
+services to the government, had convinced him that his knowledge of
+German and French would make him most useful in the secret service.
+Reluctantly he had consented to take up the work, and as he had gone
+further and further into it and had realized the vast machinery for
+surreptitious observation and dangerous activity that the German agents
+had secretly planted in the United States, he had become fascinated
+with his occupation—that is, until he met Jane Strong.
+
+His association with her under present circumstances was fast becoming
+unbearable. Even though he was aware that she knew he was no ordinary
+chauffeur, he loathed the necessity of having to wear his mask in the
+presence of her family. He wanted to be free to come to see her, to
+send her flowers and to go about with her. For him to take any
+advantage of their present intimate relations to court her seemed to
+him little short of a betrayal of his government, yet at times it was
+all he could do to keep from telling her that he adored her. Love’s
+sharp instincts, too, had made him realize that Jane was already
+beginning to be attracted by the handsome young German whom they were
+seeking to entrap, and the knowledge of this fact filled him with
+helpless rage and jealousy.
+
+Jane, too, angered and insulted at first by Dean’s outburst, had been
+endeavoring to analyze her own conduct. Candor reluctantly compelled
+her to admit that each time she met Frederic Hoff she had found herself
+coming more and more under his spell. He had a wonderful personality,
+talked entertainingly and ever exhibited an innate gallantry toward
+women in general, and herself in particular, which Jane had found
+delightfully interesting. Though she had undertaken wholeheartedly to
+try to get evidence against him, she was forced to admit to herself now
+that she was secretly delighted that there had been nothing damaging
+found as yet, so far as he was concerned, beyond the one fact that he
+had been in British uniform.
+
+In vain she marshalled the circumstances about him, trying to make
+herself hate him. He was a German, she told herself. He was an enemy of
+her country. He lived with a man who had been proved to be a spy. He
+surreptitiously associated with American naval officers. The dictograph
+told her that nightly his uncle and he in the seclusion of their home
+toasted America’s arch enemy, the German Kaiser. More than likely, too,
+her reason told her, he was a murderer. She ought to hate, to loathe,
+to despise him, and yet she didn’t. She liked him. Whenever he
+approached she could feel her heart beating faster. She looked forward
+after each meeting with him to the time when she would see him again.
+What, she wondered, could be the matter with her? Assuredly she was a
+good patriotic American girl. Why couldn’t she hate Frederic Hoff as
+she knew he ought to be hated?
+
+She was still puzzling over her unruly heart when they reached Getty
+Square, and Dean brought the motorcycle to a stop in one of the side
+streets overlooking Broadway. Dismounting, he looked at his watch and
+made a pretense of tinkering with the engine, while Jane kept a sharp
+lookout on the main thoroughfare, by which they expected the Hoffs to
+approach. Ten minutes, twenty minutes, more than half an hour they
+waited, anxiously scanning each car as it passed.
+
+“I can’t understand it,” said Dean. “They should have been here at
+least twenty minutes ago. I am going to ’phone Carter. He will know
+what time they started.”
+
+He had hardly entered an adjacent shop before Jane, still keeping
+watch, saw the Hoffs’ car flash by, going rapidly north. Quickly she
+sprang out and ran into the store. Dean saw her coming and left the
+telephone booth, his finger on his lips in a warning gesture.
+
+“Don’t bother to ’phone,” cried the girl, misunderstanding his
+meaning—and thinking only that he was trying to prevent her naming the
+Hoffs. “Come, let’s get started.”
+
+Without speaking he hurried from the store and got the motorcycle under
+way.
+
+“Have they passed?” he whispered then.
+
+“Just a moment ago.”
+
+Silently he gathered up speed, racing in the direction the Hoffs’ car
+had gone, not addressing her again until perhaps two miles from Getty
+Square they caught up with it close enough to identify the occupants,
+whereupon he slowed down and followed at a more discreet interval.
+
+“Be careful about speaking to me when there’s any one about,” he warned
+Jane, almost crossly. “Those clothes make you look like a boy, and your
+walk is all right, but your voice gives you away. Did you see that
+clerk in the store look at you when you spoke to me? I tried to warn
+you to say nothing.”
+
+“I’ll be careful hereafter,” said Jane humbly, still depressed by her
+recent estimate of herself. “I forgot about my voice.”
+
+Mile after mile they kept up the pursuit without further exchange of
+conversation. As they passed through various towns along the road Dean
+purposely lagged behind for fear of attracting attention, but always on
+the outskirts he raced until he caught up close enough again to the car
+to identify it, then let his motorcycle lag back again. Thus far the
+Hoffs had given no indication of any intention to leave the main road.
+
+As the cyclists, far behind, came down a long winding hill on which
+they had managed to catch occasional glimpses of their quarry, Dean,
+with a muttered exclamation, put on a sudden burst of speed. At a rise
+in the road he had seen the Hoffs’ car swing sharply to the left.
+Furiously he negotiated the rest of the hill, arriving at the base just
+in time to see them boarding a little ferry the other side of the
+railroad tracks. While he and Jane were still five hundred yards away
+the ferryboat, with a warning toot, slipped slowly out into the Hudson.
+
+In blank despair they turned to face each other. The situation seemed
+hopeless. They dared not shout or try to detain the boat. That surely
+would betray to the Hoffs that they were being followed. Despondently
+Dean clambered off the motorcycle and crossed to read a placard on the
+ferryhouse.
+
+“There’s not another boat for half an hour,” he said when he returned.
+“They have gained that much on us.”
+
+“Perhaps we can pick up their trail on the other side of the river,”
+suggested Jane. “There are not nearly so many cars passing as there
+would be in the city.”
+
+“We can only try,” said Dean gloomily.
+
+“At least we know where to pick up their trail the next time.”
+
+“Damn them,” cried Dean, “I believe they suspect that they may be
+followed and time their arrival here so as to be the last aboard the
+ferryboat. That shuts off pursuit effectually. They make this trip
+every week. I wouldn’t be surprised if they have not fixed it with the
+ferry people to pull out as soon as they arrive. A two-dollar bill
+might do the trick. I’d give five thousand right now if we were on the
+other side of the river. It’s the first time—the only time I’ve ever
+failed the Chief.”
+
+“Never mind,” said Jane consolingly, “why can’t we be waiting for them
+at the other side next week when they come up here? They’re not apt to
+suspect motorcyclists they meet up here with having followed them.”
+
+“Perhaps next week will be too late.”
+
+“I wonder where they are headed for,” said the girl, looking across at
+the rapidly receding boat. “Why, look! What are those buildings over
+there?”
+
+“That’s West Point,” Dean exclaimed, noting for the first time where
+they were.
+
+“West Point!” she echoed in amazement.
+
+What mission could the Hoffs have that would take them to the United
+States Government military school was the question that perplexed them
+both. Could it be that the web of treachery and destruction the
+Kaiser’s busy agents were weaving had its deadly strands fastened even
+here—at West Point?
+
+
+
+
+CHAPTER X
+CARTER’S DISCOVERY
+
+
+“It’s the young man I’m after,” said Chief Fleck. “We have the goods on
+old Hoff, but we have nothing incriminating against Frederic yet. The
+very fact that he holds aloof from his uncle’s activities makes me
+think he is engaged in more important work. He’s just the type the
+Germans would select as a director.”
+
+“That’s right,” said Carter despondently. “There’s nothing except the
+fact that Dean and the girl think they saw him in British uniform. Why
+didn’t they follow and make sure?”
+
+“They tried to,” said the chief, “but he gave them the slip. I’m
+inclined to believe they were mistaken. More than likely it was a
+chance resemblance. Lots of Britishers of the Anglo-Saxon strain look
+much like Germans, and a uniform makes a big difference in a man’s
+appearance. I’m afraid there’s nothing in that.”
+
+“But both saw the man—Dean and Miss Strong,” protested Carter.
+
+“The trouble is,” observed Fleck, “that Dean is getting infatuated with
+the girl. A young man in love is not a keen observer. Anything she
+thinks she has seen he’ll be ready to swear to. I hope the girl keeps
+her head. Lovers don’t make good detectives.”
+
+“I have watched them together,” said Carter. “I’ll admit he’s struck on
+her, but I don’t think she cares a rap for him. She’s too keenly
+interested in Frederic Hoff.”
+
+“What do you mean by that?” asked the chief sharply.
+
+“You can depend on her all right. She’s patriotic through and through.
+She’s the kind that would do her duty, no matter what it cost her. All
+I meant is that Hoff’s the type that interests women. He’s got a way
+about him. The fact that he’s a spy, in peril most of the time, gives
+him a sort of halo. I never knew a daring young criminal yet that
+didn’t have some woman, and often several of them, ready to go the
+limit for him. All the same, I’m sure we can trust Miss Strong.”
+
+“We’ve got to,” growled Fleck, “for the present at any rate. Is
+everything fixed for the search this afternoon? What have you done to
+get the superintendent out of the way? He’s not to be trusted. His name
+is Hauser.”
+
+“I’ve got him fixed. Jimmy Golden, my nephew, who has helped us in a
+couple of cases, is a lawyer. He has telephoned to Hauser to come to
+his office this afternoon.”
+
+“Suppose he doesn’t go?”
+
+“He’ll go all right. Jimmy ’phoned him that it was about a legacy.
+That’s sure bait. Jimmy will make Hauser wait an hour, then keep him
+talking half an hour longer. That will give us plenty of time.”
+
+“Then there’s the woman—the servant, Lena Kraus.”
+
+“She goes to the roof every Wednesday while the Hoffs are away to
+signal. Other days they apparently do the signalling themselves in some
+way we haven’t caught on to yet. She always goes up about three o’clock
+and—”
+
+“Suppose she comes down unexpectedly and catches you? We can’t have
+that happen. That would put them on their guard.”
+
+“She won’t surprise us. I’ve got a trick up my sleeve for preventing
+that.”
+
+“Go to it, then,” said the chief, and Carter went on his way rejoicing.
+
+Ever since he had been informed that the search of the Hoffs’ apartment
+was to be intrusted to him Carter had been in a state of exuberant
+delight. He fairly revelled in jobs that required a disguise and he
+welcomed the opportunity it gave him and his assistants to don the
+uniform of employees of the electric light company. He even made a
+point of arriving that afternoon at the apartment house in the
+company’s repair wagon, the vehicle having been procured through
+Fleck’s assistance.
+
+“There’s a dangerous short circuit somewhere in the house,” he
+announced to the superintendent’s wife.
+
+“My husband isn’t here,” she answered unsuspectingly. “Do you know
+where the switch-boards are?”
+
+“We can find them,” said Carter. “We’ll start at the top floor and work
+down.”
+
+Always thorough in his methods of camouflage he actually did go through
+several apartments, making a pretense of inspecting switch-boards and
+wiring, all the while keeping watch for the time when old Lena went to
+the roof. The moment she had entered the elevator to ascend with her
+basket of linen, Carter and his aides were at the Hoff door. Equipped
+with the key Dean had manufactured they had no difficulty in entering.
+
+“Bob,” said Carter to one of his men, “we haven’t much time, and
+there’s a lot to be done. You take the servant’s room and the kitchen,
+and you, Williams, take the old man’s quarters. I’ll take care of the
+young man’s bedroom, and we’ll tackle the living room and dining room
+later.”
+
+Thoroughly experienced in this sort of work all three of them set at
+once to their tasks. Carter, standing for a moment in the doorway,
+surveyed Frederic Hoff’s quarters, taking in all the details of the
+furnishings. Both the sitting room and the bedroom adjoining were
+equipped in military simplicity, with hardly an extra article of
+furniture or adornment, chairs, tables, everything of the plainest
+sort. Moving first into the bedroom, Carter quickly investigated
+pillows and mattress, but in neither place did he find what he sought,
+evidence of a secret hiding place. He rummaged for a while through the
+drawers of two tables, carefully restoring the contents, but
+discovering nothing that aroused his suspicions. The books lying about
+on the tables and on shelves he examined one by one, noting their
+titles, examining their bindings for hidden pockets, holding them up by
+their backs and shaking the leaves. There was nothing there. Lifting
+the rugs and moving the furniture about he made a careful survey of the
+flooring, seeking to find some panel that might conceal a hiding place.
+Once or twice in corners he went so far as to make soundings but
+apparently the whole floor was intact. His search in the bath room was
+equally profitless, and at last he turned to the clothes press. As he
+opened the door an exclamation of amazement burst from his lips.
+
+There, concealed behind some other suits, was the complete outfit of a
+British cavalry captain.
+
+“That’s one on the Chief,” he said to himself. “It must have been Hoff
+that Dean and Miss Strong saw. I wonder where he got it?”
+
+With a grim smile of satisfaction he devoted himself to going carefully
+through all the pockets and over all the seams of the clothing in the
+closet. He even felt into the toe of the shoes and examined the soles.
+There was nothing to be found anywhere, but he felt satisfied. The
+uniform in itself was to his mind damning proof of the young man’s
+occupation.
+
+No explanation that could be given by a young man of German name, even
+though he was American-born, or had an American birth certificate,
+could possibly account for his having a British uniform. It was prima
+facie evidence that Frederic Hoff was a spy. What puzzled Carter most
+was how Hoff managed to smuggle the uniform in and out of the apartment
+without being observed. For more than two weeks now every parcel that
+had arrived at the house of the Hoffs had been searched before it was
+delivered. The house had been constantly under the strictest
+surveillance. It was out of the question for him to have worn the
+uniform in or out as it could not be easily concealed under other
+clothing.
+
+“There’s somebody else in this place in league with the Hoffs,” he
+muttered to himself. “I wonder who it can be.”
+
+He looked at his watch. The old servant had been out now nearly half an
+hour. She was likely to return at any moment. He must work quickly.
+Swiftly he went through the dresser drawers but without satisfactory
+result. There was no time for him to do more. He hastened into the
+living room and summoned his aides.
+
+“Find anything, Bob?” he asked.
+
+“Not a thing.”
+
+“Beat it up to the roof,” he directed. “Have you those field glasses
+with you?”
+
+“Sure,” replied the operative, “and the handkerchiefs, too.”
+
+“All right. Get up there before she starts down. Begin putting up
+handkerchiefs and appear to be watching the river. That will mix her up
+so she will not know what to do. She will not dare to leave the roof
+while you are there. When we’re through I’ll send the elevator man up
+for you with the message that we have found the short circuit.”
+
+He turned to the other operative.
+
+“Find anything, Williams?”
+
+“Only this.”
+
+Carter’s face brightened as his assistant held out to him two copies of
+an afternoon newspaper. In each of them a square was missing where
+something had been cut out.
+
+“I found them in the waste-paper basket by the old man’s desk,” the man
+explained, “and there was some ashes there—ashes of paper—as if he had
+burned up something. Maybe it was what he cut out of those papers. I
+could not tell.”
+
+“We’ve got to get copies of those papers at once and see what it was.
+Come on, I’m going to take them to the Chief. We can get the papers on
+the way down.”
+
+Calling the other operative from the roof, before he even had had time
+to attract the attention of Lena Kraus by his activities, they hastened
+back to the office, where Fleck and Carter together scanned the two
+papers from which the clippings had been taken.
+
+“Why,” said Carter disappointedly, “it is just a couple of
+advertisements he cut out—advertisements for a tooth paste. There’s
+nothing in that.”
+
+“Don’t be too sure,” warned Fleck. “If a man cuts out one tooth-paste
+advertisement, the natural presumption would be that he wished to
+remind himself to buy some. When he cuts out two, he must have some
+special interest in that particular tooth paste. We’ll have to find out
+what his interest is.”
+
+“Maybe he owns it,” suggested Carter.
+
+“Perhaps,” said Fleck, as he began studying the advertisements, “but it
+would not surprise me if these advertisements contained some sort of
+code messages.”
+
+“Messages in advertisements,” exclaimed Carter incredulously.
+
+“Why not? The Germans have hundreds of spies at work here in this city
+and all over the country. What would be an easier method of
+communicating orders to them than by code messages concealed in
+advertising. They have done it before. When the German armies got into
+France they found their way placarded in advance with much useful
+information in harmless looking posters advertising a certain brand of
+chocolate. I’d be willing to bet that every one of these advertisements
+carries a code message. I’ve noticed that these advertisements, all
+peculiarly worded, have been running for some time. I never thought of
+hooking them up with German propaganda, but, see, it is a German firm
+that inserts them.”
+
+Carefully he cut out the two advertisements and laid them side by side
+on his desk. Turning to Carter he said:
+
+“Go at once to see Mr. Sprague, the publisher of this paper. Get him to
+give you a copy of each paper that has contained an advertisement of
+this sort in the last six months. Find out what agency places the
+advertising. Tell him I want to know. He’ll understand. We have worked
+together before.”
+
+Alone in his office, Fleck bent with wrinkled brow over the first of
+the two advertisements, which read:
+
+REMEMBER
+
+
+Please, that our new paste, DENTO,
+will stop decay of your teeth. Sound
+teeth are passports to good health and
+comfort. Now, no business man can
+risk ill health. It is closely allied with
+failure. The teeth if not watched are
+quickly gone.
+
+
+USE DENTO
+
+
+A genuine, safe, pleasing paste for the
+teeth, prepared and sold only by the
+Auer Dental Company, New York.
+
+
+He tried all the methods of solving cipher letters that he thought of.
+He drew diagonals this way and that across the advertisement. He tried
+reading it backward. He tried reading every other word, every third
+word, both backward and forward. Nothing that he did revealed any
+combination of words that made sense.
+
+“Passports,” he muttered to himself, “that’s it. If there is a message
+there it must be something about passports.”
+
+In despair he turned to the other advertisement. It read:
+
+DON’T
+
+
+Forget it is imperative for one and all to
+use cleansing agents on teeth that leave
+no bad results.
+
+“Ship more of that wonder-working
+paste immediately. Workers, employers,
+wives, all ready to commend it. Friday’s
+supply gone,” writes a druggist to whom
+a big shipment was made last week.
+
+
+USE DENTO
+
+
+A genuine, safe, pleasing paste for the
+teeth, prepared and sold only by the
+Auer Dental Company, New York.
+
+
+Fleck’s eyes gleamed with satisfaction as he read this advertisement
+and caught the phrase “wonder-working.” He felt sure now that he was on
+the right track. He recalled that Jane Strong over the dictograph had
+heard old Hoff speak of something that he called the “wonder-worker.”
+As soon as Carter returned with the other advertisements that had been
+appearing he felt positive that he would be able to unravel the cipher.
+Two words he was sure of—“passports” and “wonder-working.” One
+footprint does not lead anywhere, but two do, and given three
+footprints, a pathway is indicated.
+
+His telephone rang sharply. He turned to answer it, suspecting it must
+be Carter with some message about the papers he had sent for.
+
+“Hello,” he called.
+
+“Hello,” came a faint voice, as if the speaker were using long
+distance, and had a bad connection, “is this Fleck?”
+
+“Yes, Fleck,” he answered, “who is this?”
+
+“Dean speaking,” came the voice faintly.
+
+“Dean,” cried Fleck, excitedly, “yes, yes. What is it, Dean?”
+
+He had not expected to hear any results from the expedition that Dean
+and Jane Strong had undertaken until late in the afternoon after the
+Hoffs returned. The fact that Dean was calling him up now would seem to
+indicate that something of importance had happened.
+
+“I’m telephoning from a doctor’s house near Nyack,” said Dean.
+
+“What’s that? Speak louder.”
+
+“I’m here in Doctor Spencer’s office near Nyack with a broken arm,”
+Dean continued. “We’ve had an accident. Somebody’s auto smashed into
+us, I guess.”
+
+“Miss Strong? Where is she? Is she hurt?” asked the chief anxiously.
+
+“I don’t know. She has vanished.”
+
+Jane Strong vanished! The chief’s figure became suddenly tensed. That
+it was more than a mere automobile accident he felt certain now.
+Shadowing the Hoffs was an occupation that seemed unusually perilous.
+There flashed into his mind the fate of K-19—murdered almost at the
+Hoffs’ door. And now two more of his operatives, one disabled and the
+other mysteriously missing.
+
+“Quick,” he said over the ’phone. “Tell me briefly just what happened.
+Speak as loudly as you can.”
+
+“We got half an hour behind at the West Point Ferry,” Dean’s voice went
+on, still weak and low as if he were speaking with difficulty. “We had
+some trouble getting started on the trail again but finally succeeded.
+We were dashing along about ten or twelve miles south of West Point
+when an automobile coming out of a cross road crashed right into us. It
+must have knocked me unconscious. I didn’t remember anything more till
+I found myself here. I came to as the doctor was setting my arm. I
+’phoned as soon as they would let me.”
+
+“Who brought you there?”
+
+“I don’t know. All they know here was that some couple in an automobile
+left me here. They said they passed just after an auto hit my
+motorcycle. They said the auto didn’t stop.”
+
+“And Miss Strong—did they say anything about her?”
+
+“Not a word. The people here were under the impression I was riding
+alone.”
+
+“All right,” said the chief. “I’ll get some one up there at once to
+look after you and pick up any clues.”
+
+As he hung up the ’phone, his forehead wrinkled into little lines of
+absorbed concentration. He sat at his desk for fully five minutes
+almost motionless, trying to figure it out. What did the accident to
+Dean signify? How was the sudden disappearance of Jane Strong to be
+accounted for? Had she fled from the scene after Dean was disabled,
+fearing that her name might be coupled with his in an account of the
+accident? It did not seem like the sort of thing she would do. The
+impression she had made on him was that of a girl of high resolve who
+would be apt to carry through anything she undertook, cost what it may.
+Yet what could have happened to her? If she, too, had been injured, why
+was she not with Dean? If she was not injured, why had she not
+communicated with the office? Who were the couple that had brought Dean
+to the doctor’s office? Why had not the doctor taken their names and
+addresses?
+
+What part had the Hoffs played in the accident? Had they purposely run
+down the motorcycle? If they had found out they were being shadowed
+they would not have hesitated, he felt sure, to resort to such
+murderous tactics. Had they not already one dastardly murder to their
+record? He must find out when the Hoffs arrived home. They would not be
+due for an hour or two, but he would caution the operatives watching
+the house to keep more vigilant watch. Reaching for his ’phone he
+called up the head-quarters of the operatives.
+
+“Report to me at once,” he said to the operative who answered his call,
+“the minute the Hoffs have arrived home.”
+
+“The old man is home now,” the operative answered.
+
+“What’s that?” cried Fleck.
+
+“He came in alone five minutes ago on foot. The young man is not home
+yet with the automobile.”
+
+“Let me know as soon as he arrives,” said Fleck curtly, turning away
+from the ’phone.
+
+He was more perplexed than ever. What could have happened? Where was
+young Hoff with the motor? Where was Jane Strong? Why had she
+disappeared after Dean had been hurt? How had she vanished? The Hoffs’
+affairs had assuredly taken a new and bothersome turn, over which Fleck
+sat puzzling many minutes.
+
+Where was Jane Strong? In the answer to that question, he decided at
+length, lay the crux of the whole situation.
+
+
+
+
+CHAPTER XI
+JANE’S ADVENTURE
+
+
+For more than two hours Thomas Dean and Jane had been vainly circling
+about West Point on their motorcycle, striving to pick up some clue
+that would put them once more on the trail of the Hoffs’ car. They had
+not dared to ask too many questions of any one near the ferry, fearful
+lest the people they were pursuing might have a guard posted there to
+warn them in case of a possible pursuit, yet cautious inquiries seemed
+to indicate that all the automobiles on the ferryboat which had
+preceded had been headed to the north.
+
+“There’s only one thing we can do,” Dean had said despondently. “We
+have got to run out each road we come to until we reach some shop or
+garage where the people would be likely to have noticed the Hoffs. They
+may have stopped somewhere, or we may meet some one coming toward us
+who will remember having passed them.”
+
+“It seems like a wild-goose chase,” said Jane, “but I suppose there is
+nothing else to do.”
+
+The strain of their bitter disappointment was telling on both of them.
+Each felt inclined to blame the other for their having fallen so far
+behind. They rode along in silence, their nerves becoming more and more
+keyed up as their hopes grew less. At garage after garage they paused
+to question the employees.
+
+“Did a big gray car with two men, an old man with a beard and a young
+man driving, pass this way about an hour ago?”
+
+“I don’t remember any such car,” was the invariable answer.
+
+Time and time again they repeated their query, wording it always the
+same, except for lengthening the interval of time in which the car
+might have passed, for the afternoon was rapidly passing. In their
+circuit they had now reached the roads pointing to the southward.
+
+“We’ll try this one more garage,” said Dean, as they approached a
+wayside shed bearing a large sign “Gasoline.”
+
+“I fear it is only wasting time,” said Jane wearily.
+
+“Don’t you want the Hoffs caught?” snapped her companion.
+
+“Of course I do,” she retorted heatedly, “but I don’t see you catching
+them.”
+
+“I believe you are half glad of it,” snarled her escort as he brought
+the machine to a stop and repeated his usual question.
+
+“Sure there was a car with two men in it like you describe passed
+here,” the man replied to their amazement and delight. “They stopped
+here for gas, as they generally do. About three hours ago, I guess it
+musta been.”
+
+Dean shot a triumphant glance at Jane.
+
+“An old man with a gray beard and a smooth-shaven young man
+driving—does that describe them?” he repeated.
+
+“That’s them,” said the garage proprietor. “They come through here
+every few days, always about the same time.”
+
+“Where do they go?” questioned Dean eagerly, feeling at last that the
+scent was growing hot.
+
+The man shook his head in a puzzled way.
+
+“I’ve often wondered about that. They’re always heading south and
+appear to be in a powerful hurry, but the funny part of it is I ain’t
+never seen them coming back.”
+
+“Do you know their names?”
+
+“No, I can’t say I do, though it seems as if I’d heard one of them
+called Fred. I can’t say which it was.”
+
+“Do they always come by on the same day—on Wednesday?” asked Jane,
+forgetful once more of Dean’s warning to let him do the talking lest
+her voice should betray her sex.
+
+“Come to think of it,” said the man, apparently noticing nothing
+unusual, “I guess it always is on a Wednesday they come by.”
+
+“Is the number of their car anything like this?” asked Dean, exhibiting
+an entry in his notebook.
+
+“I couldn’t say,” said the man, studying the figures. “I know it is a
+New York license, and the number ends with two nines like this one
+does. What might you be wanting them for?”
+
+He spoke to a cloud of dust, for Dean had started up the motorcycle
+before he finished speaking and already was speeding away.
+
+“Where now?” asked Jane.
+
+“I don’t know,” he answered frankly, “I only know we are going the
+direction the Hoffs went, and I want to gain on them before they get
+too far ahead. The chap back there had told us all he knew and was
+beginning to get curious, so I thought it better to vamoose.”
+
+“It’s funny about his never seeing them coming back.”
+
+“Probably there is nothing mysterious about that. I have a notion they
+always come up one side the river and down the other, taking the 125th
+Street ferry home. That would not be a bad plan to help them in eluding
+too curious observers. All these German spies are trained to leave as
+blind a trail behind them as possible. The thing we have got to
+discover is what brought them up here. We’ve just got to find out their
+destination.”
+
+“I am afraid there is little chance of our doing that,” insisted Jane.
+“We’ve nothing to go on.”
+
+“We’ve learned something. We know that their destination is somewhere
+between here and Fort Lee on this side of the river. That narrows down
+the search considerably. That’s more, too, than anybody else that the
+Chief has had on their trail has learned. Something tells me that we
+are getting warm right now. Obviously the place they come to must be
+nearer West Point than it is New York. They would hardly take too
+roundabout a course, even for the sake of hiding their tracks. Keep a
+sharp lookout for tire tracks leaving the main road.”
+
+The route they were following quickly led them into a sparsely
+inhabited mountainous district and instead of the concreted state
+highway they found themselves on a hilly dirt road, full of ruts and
+loose stones that made travel difficult. At times it was all Dean could
+do to manage the machine, so that he had to leave most of the task of
+observing the by-ways to Jane. For more than two miles they had seen
+neither house nor barn. Once or twice they came upon little used lanes
+leading off through the woods, but none of them showed any traces of
+the recent passing of an automobile.
+
+As they came dashing around a curve on a steep down-grade, where hardly
+more than the semblance of a road had been cut into the hillside, Jane
+caught her breath sharply. Above the roar of their own motor she
+thought she heard some other noise, something that sounded like another
+car near-by; yet neither behind nor ahead was there another automobile
+in sight.
+
+“Listen,” she cried sharply.
+
+Dean started to slow down, but it was too late. Out of a cut in the
+hillside, half screened by a clump of bushes at the side on which Jane
+was riding, a great gray motor shot out just as they were passing. Jane
+caught just one glimpse of the man on the driver’s seat. It was
+Frederic Hoff, frantically twisting at the wheel in an effort to avert
+the threatened collision. There came a thud and a crash as the forward
+part of the Hoff car struck the motorcycle a glancing blow, overturning
+it completely. Too terrified even to shriek, Jane felt herself being
+catapulted out of her seat and flung high in air. Then came a blank.
+
+Her companion did not escape so easily. The heavy machine crashed over
+on him and dragged him several yards. His head, as he landed in the
+roadway, struck a stone, and the motorcycle itself pinned him to the
+earth by its weight, one of his arms doubled up in an alarming fashion,
+as he lay there completely senseless.
+
+Jane fortunately had landed on some soft grass, though with sufficient
+force to leave her badly stunned. As she lay there, a boyish figure in
+her disguise, her senses began gradually to revive, although it was
+some time before she opened her eyes.
+
+Vaguely, as from a great distance, she began to hear voices, and it
+seemed to her that they were German voices, arguing about something.
+The voices seemed angry and excited. At first she did not bother about
+them. She was wondering how badly she was hurt. Her arms and limbs had
+a curious sort of deadness about them, a detached sensation, as if they
+belonged to some one else. She wondered if she was paralyzed and dared
+not try to move them, fearful lest she might find that it was the
+terrible truth.
+
+The voices—the German voices—came nearer, became louder and more
+strident. She struggled to collect her thoughts. Where was she? What
+had happened? Where was Thomas Dean? Gradually some memory of the
+accident came to her. They had been run down by the Hoffs’ car. The
+voices she kept hearing were those of the two Hoffs, angrily wrangling
+about something. As she revived further she became acutely conscious
+that her head seemed to be splitting. What was it the Hoffs were
+arguing about? Still lying there motionless, with her eyes closed,
+endeavoring to collect herself, she tried to listen to what they were
+saying.
+
+“I tell you there is not time. I must hurry. Every minute is precious.
+I cannot delay my work for these swine, no matter if they both are
+dying or dead,” old Otto was angrily shouting with many German oaths.
+
+“I tell you,” Frederic was saying,—his voice was calmer but
+determined,—“we’ve got to get these people to a doctor. It’s too
+heartless. I will not leave them here.”
+
+“And betray us at the last moment, when our plans are all ready,”
+snarled old Otto.
+
+“There is less danger if we bundle them into the car and take them with
+us than if we leave them here,” protested Frederic. “Two bodies right
+here at the entrance would be fine, _nicht wahr?_”
+
+His last remark appealed to old Otto.
+
+“That is so,” he muttered. “It is not safe. We must hide the bodies,
+both of them, yes?”
+
+The bodies! Jane decided that Dean must have been killed and that they
+thought that she, too, was dead. As she strove to open her eyes she
+could hear Frederic protesting.
+
+“It’s inhuman,” he cried. “They both are hurt, but perhaps still alive.
+We must take them to a hospital.”
+
+“And endanger all our plans,” stormed old Otto. “Throw them into the
+woods.”
+
+“We’ll do nothing of the sort,” Frederic insisted, his voice becoming
+unusually stern and severe. “I’m going to get both of these people to a
+doctor at once, I tell you.”
+
+With effort Jane opened her eyes and looked cautiously about. Where was
+Thomas Dean? How badly had he been hurt? The Hoffs’ automobile was
+slowly backing up. As she looked old Otto sprang out of it and righted
+the motorcycle. As he did so Jane saw the body of Dean lying senseless
+beneath it, but to him the old German paid no attention. He was
+examining the motorcycle and still sputtering that the swine should be
+left to rot.
+
+“We are going to take them with us in the car,” directed Frederic in a
+voice of authority. “I command it.”
+
+At the word old Otto’s mutterings ceased, though he shot a black look
+at the younger man.
+
+“This machine,” he suggested, “it is not hurt. I will take it and do
+our work. There is haste. You remain with the car. Do what you will
+with these people.”
+
+“Go then,” said his nephew curtly. “You can take the train at the first
+station and make time.”
+
+As the old man mounted the motorcycle and sped away Frederic sprang
+from the car, and approaching the spot where Dean’s body lay, began
+making an examination of his injuries.
+
+“Scalp wound, perhaps fractured skull, broken arm,” Jane heard him
+saying aloud to himself. She noted curiously that as soon as he was
+left to himself he began speaking in English.
+
+He left Dean and approached her. As he came nearer she closed her eyes
+again, trying to plan some course of action. Her head was throbbing so
+that she found it impossible to think. She felt toward young Hoff a
+warmth of gratitude for not having gone off and left them helpless as
+his uncle had insisted. Even though he was an enemy of her country, a
+man to be hated, a spy, she could not help being glad for his presence
+there. What would she have done without him, with Dean lying there
+injured and helpless on this lonely mountain road?
+
+“This chap seems only stunned,” she heard him say as he bent over her,
+then as he looked closer, she heard him exclaim:
+
+“My God, it’s Jane!”
+
+In an instant he was down at her side on his knees. Tenderly one of his
+arms went about her and lifted her head.
+
+“Miss Strong, Jane, Jane,” he implored, “Jane dear, speak to me.”
+
+
+Illustration: “Thank God,” he cried. “Jane dear, tell me you are not
+hurt.”
+
+
+Stunned though she still was a flush crept into Jane’s cheeks at the
+unexpected term of endearment, though she still kept her eyes closed.
+Gently he laid her back on the turf and hastened to the automobile,
+returning with a flask which he held to her lips. Slowly Jane opened
+her eyes.
+
+“Thank God,” he cried. “Jane dear, tell me you are not hurt.”
+
+For a moment she lay there, staring wonderingly at him as he bent over
+her imploringly, the tenderest of anxiety showing in every line of his
+face. Unprotestingly she let him slip his strong arm once more under
+her head. In her dazed brain there was a strange conflict of peculiar
+emotions. He was a German, a spy,—she hated him, and yet it was
+wonderfully comforting to her to have him there. Under other
+circumstances she could have loved him. He was so handsome, so
+masterful and so kind, too. He cared for her. Had he not called her
+“Jane, dear” in his amazement at finding her lying there? But she must
+not let herself think of him in that way. It was her duty, her sacred
+duty to trap him, to thwart his nefarious plans against her country.
+She must do her duty just as her soldier brother was doing his in far
+away France.
+
+Still supported by Hoff’s arms she sat up, trying to collect her
+thoughts and gingerly testing the movement of her arms and limbs.
+
+“Tell me,” he cried again, “Jane, dear, are you hurt?”
+
+“I don’t think so,” she managed to say.
+
+With his assistance she got up on her feet and walked uncertainly to
+the car, shuddering as she looked at Dean’s crumpled senseless body.
+
+“Your friend,” said Hoff, as he placed her in the forward seat and
+wrapped a rug about her, “I am afraid, is badly hurt.”
+
+“It’s our chauffeur, Thomas Dean,” she explained confusedly.
+
+She had been wondering what she could say to Frederic to account for
+her presence there. It was unconventional at least for a girl to be
+motorcycling about the country dressed in man’s clothes with a
+chauffeur. Hoff must surely realize now that she had been shadowing
+him. She felt almost certain that he had known it from the very first,
+since that afternoon when he had overheard her telephoning about the
+“fifth book.” Yet never by word or manner had he betrayed the fact that
+he suspected her. Beyond his customary reserve in speaking about
+himself or his activities, there was nothing to indicate that he knew
+anything yet. Whatever she told him now she must be careful not to
+betray her mission. Perhaps even in spite of all that had happened she
+still might be able to aid Chief Fleck in trapping them.
+
+But did she really want to trap Frederic Hoff? Had Thomas Dean’s bitter
+charge that she was trying to protect him been true? Frederic Hoff
+loved her. She, yes—she had to admit it to herself—she was beginning to
+love him. Could she go on with it?
+
+Hoff had been busy lifting the unconscious Dean into the tonneau. As
+she watched him as he lifted up the body unaided she was conscious of
+admiration of his great strength.
+
+“Will he die?” she whispered.
+
+“I don’t know,” he answered. “He is badly hurt. We must get him to a
+doctor at once.”
+
+He stopped a moment longer to examine the car. Fortunately the glancing
+blow that it had struck the motorcycle had done no more damage than
+shatter one of the lamps and bend the mud guard. Soon they were moving
+rapidly in the direction of New York.
+
+“I think,” said Hoff, “we had better leave him in the care of the first
+doctor we come to. We can say that he is an injured motorcyclist we
+found lying in the road.”
+
+“And me?” asked Jane, almost fearfully.
+
+“I’ll take you back to the city with me.”
+
+“No,” she replied, “that won’t do. I ought to stay by him. Besides, if
+I return with you, it will be hard to explain.”
+
+He turned to look inquiringly at her and for a moment drove on in
+silence.
+
+“There’s nothing more you can do for the man once he is in competent
+medical hands, except to notify his people. Is he married?”
+
+“No,” said Jane, “he’s not married. I can tell his friends.”
+
+“Did your parents know about”—he hesitated—“about this trip with the
+chauffeur?”
+
+Jane blushed guiltily, wondering what he suspected of her. She hoped
+that he did not think she had a habit of going off on such journeys
+with the chauffeur. Even though the man at her side was officially her
+enemy she resented being put into a position that would cheapen her in
+his eyes.
+
+“No,” she replied, “they knew nothing about it.”
+
+Hoff drove on in silence. She had feared that he might ask her more
+embarrassing questions, might insist on knowing where she had been
+going when the accident occurred. A panic seized her. What if he should
+ask her? What could she tell him? He had a masterful way about him. If
+he took it into his head to make her confess she realized that she
+would have a struggle to keep from telling him everything. She made up
+her mind that she would not, she dare not answer any more questions.
+
+When he spoke again she was relieved to hear a suggestion instead of a
+query.
+
+“When we have crossed the ferry,” he said, “you can put on a dust coat
+to hide your costume, and I will send you home in a taxi. Will that be
+all right?”
+
+“That will do nicely,” she replied, gratefully conscious that he was
+endeavoring to plan so that her part in the afternoon’s adventures need
+not become public.
+
+Nevertheless she waited nervously while Hoff and the doctor carried
+Dean into the doctor’s home. What if the doctor’s suspicions should be
+aroused, and he should insist on knowing all the details of the
+accident? To her astonishment the doctor seemed to accept Hoff’s brief
+recital of finding an injured motorcyclist on the road without
+question. Perhaps if she had seen the amount of the bills Hoff left to
+care for the chauffeur’s treatment she might have understood better.
+
+Yet unconscious though Dean had lain all the way, as they resumed their
+journey without him, she felt a sudden sense of dread at being alone in
+the car with Frederic Hoff. It was not that she longer feared he would
+endeavor to make her tell her reasons for the expedition. She was
+afraid that with just the two of them alone in the car he might seize
+the opportunity to declare his affection for her.
+
+But, to her amazement, he hardly spoke a word to her on all the rest of
+the journey homeward. Once in a while as she ventured a glance in his
+direction, annoyed a little perhaps by this neglect of her, she saw
+only a strong face set in lines of thought, his brow wrinkled in deep
+perplexity, and his blue eyes looking steadily at the road ahead—and at
+something far, far beyond.
+
+Save for an occasional solicitous question about her comfort he did not
+speak again until just after he had put her in a taxi at the ferry. As
+Jane was trying to say her thanks he leaned forward unexpectedly, his
+tall frame blocking the whole doorway.
+
+“Jane,” he said, his voice vibrant with emotion, “Jane, you must trust
+me. Everything must come out all right. Some day—some day soon when we
+have won—I am coming to find you and tell you that I love you.”
+
+“When we have won!” Jane shuddered and drew back in the car, aflame
+with sudden wrath.
+
+She had read and had heard often of the unspeakable conceit of the
+Prussians. She knew that they regarded themselves as supermen who could
+not be defeated. Her challenged American pride rose to battle. As she
+rode home she was sure now that more than she hated anything else in
+the world she hated Frederic Hoff, the spy, the German, who had dared
+to boast to her that they expected to win.
+
+
+
+
+CHAPTER XII
+PUZZLES AND PLANS
+
+
+Chief Fleck had spent a sleepless night trying to put two and two
+together. Instead of the answer being “four” as it should have been
+each time he completed his figuring the result was “zero.” Time and
+again he mustered the facts into columns, only to succeed in puzzling
+himself the more.
+
+Two German spies, the Hoffs, had set out together in their motor on
+their usual mysterious Wednesday mission. Two other persons, two of his
+most intelligent operatives, Thomas Dean and Jane Strong, had set out
+on a motorcycle to shadow them.
+
+What had happened?
+
+Otto Hoff had returned to his apartment on foot, hours before his usual
+time, seemingly much perturbed about something.
+
+Frederic Hoff had arrived back at the apartment, also on foot, some
+hours later than usual, and the motor had not been returned to its
+usual garage. Frederic Hoff had appeared to be unusually elated about
+something.
+
+Thomas Dean was in a doctor’s home somewhere up the Hudson with a
+broken arm and a bad scalp wound and was unable to tell what had become
+of either Miss Strong or the motorcycle.
+
+Jane Strong had arrived home in a taxicab half an hour before Frederick
+Hoff, apparently unhurt but in a most peculiar condition of mind. When
+Chief Fleck had called her on the ’phone she had refused to answer any
+questions. The best he could get out of her was a promise that she
+would come to his office in the morning.
+
+From this situation Fleck’s shrewd and experienced mind had been wholly
+unable to make any satisfactory deductions. That something unforeseen
+and unusual had happened to the Hoffs he was certain. It was the first
+time on a Wednesday that they had not returned together. Whatever it
+was that had happened it had depressed old Otto and had been a cause of
+elation to Frederic. What could it have been? That was the poser.
+
+Coupled with this was the annoying fact of Jane Strong’s sudden
+reticence. Hitherto he had found her at all times ready and eager
+whenever he called on her—ready to do anything he asked her, or to tell
+him everything. Why had she suddenly balked? He recalled that Dean had
+hinted, and Carter, too, that the girl was becoming interested in the
+younger of the Germans, yet he scouted the possibility of Jane having
+gone over to the enemy’s side. A girl of her stock, living with her
+parents, with a brother fighting in France, never could be guilty of
+disloyalty, even if she were in love. Yet how was her disinclination to
+talk to be accounted for? After he had received a report that she was
+at home he had waited, expecting her to call him up. When she had not
+done so, he had called her. She had been positively curt and decisive.
+She had nothing to say to him, she had replied, at present. Dean was
+safe. She would come to his office in the morning. There was nothing
+for him to do but to await her arrival.
+
+He was expecting Carter, too. He had sent him to Nyack the evening
+before as soon as he had learned of Dean’s whereabouts. Carter was to
+find out everything that Dean had learned and report as soon as he
+could. It was Carter who arrived first.
+
+“Dean doesn’t know what happened to him, nor where the girl went,” said
+Carter. “They had lost the Hoffs’ trail at the Garrison ferry, as he
+told you over the ’phone. They had to wait there half an hour for
+another boat. They scouted around West Point, and nearly three hours
+afterward they picked up the trail heading toward New York. About ten
+miles south of West Point they were clipping along a mountain road when
+something happened. Dean is not sure whether he hit a stone in the road
+or whether an automobile struck them. He was knocked unconscious and
+didn’t remember anything more until he came to and found the doctor
+setting his arm.”
+
+“Who took him to the doctor’s?”
+
+“It was a couple, the doctor said, who explained that they had found
+Dean lying in the road under his wrecked motorcycle. The doctor could
+not remember what the couple looked like. Said he had been too busy
+looking after the injured man. I did worm out of him, though, that the
+man had left two hundred dollars with him to take care of Dean.”
+
+“That’s funny,” said the chief.
+
+“It sure is,” said Carter. “Looks like hush money to me. What does the
+girl say?”
+
+“Nothing yet,” said Fleck. “She wouldn’t talk at all last night, but
+she’s coming here at ten.”
+
+“That’s funny,” said Carter. “Why wouldn’t she talk?”
+
+“I don’t know yet,” said Fleck decisively, “but I am going to find out.
+Do you really suppose that she has fallen in love with young Hoff?”
+
+Carter shook his head.
+
+“Dean thought so, and I know that Dean was in love with her himself,
+but I don’t know. I’d bank on that girl somehow, even if she is in
+love.”
+
+“There she comes now,” said the chief as he heard the door of the outer
+office open.
+
+As Jane entered she faced the two men almost defiantly. She too had had
+a sleepless night. Although she herself had been physically uninjured
+in the accident the shock to her nerves had left her unstrung, and
+besides she had been bothering all through the dark hours as to how
+much of what had happened in the last few hours it was her duty to tell
+to Chief Fleck.
+
+As her personal relations with Frederic Hoff and her feelings toward
+him had in no way affected her sense of duty she felt that it was
+unnecessary for her to report the declaration of love he had made to
+her. Surely an affair that involved only the heart was her own property
+so long as she faithfully reported anything and everything that might
+lead to the exposure of the Hoffs’ plots. She could not see that it was
+any of Chief Fleck’s business, nor her country’s either, if Frederic
+Hoff had fallen in love with her. At any rate it would be utterly
+impossible for her to make any statement about her own feelings toward
+him. Even in her own heart and mind she was not quite sure what they
+were. From the first his forceful personality had had great charm for
+her. His obvious interest in her she had found delightful and
+flattering. When she recalled how gallantly he had insisted on
+remaining to rescue Dean and herself, even before he knew her identity,
+she was filled with admiration for him. Yet always matched against all
+that she found lovable in him was the knowledge that he was a German, a
+traitor, a spy, perhaps a murderer, and at times she felt that she
+hated him with a hatred that never could be overcome.
+
+“Well,” said Fleck, studying her countenance, “what have you to tell
+us?”
+
+“How is Dean?” she asked. “Will he live?”
+
+Fleck and Carter exchanged glances. Was she, they wondered, really
+concerned in the handsome young chauffeur’s welfare, or had she merely
+put the question to gain time in framing what she was going to say?
+
+“I just left him,” said Carter, in response to an almost imperceptible
+nod from the chief; “he’s all right except for a scalp wound and a
+broken arm.”
+
+“I’m glad,” said the girl impulsively.
+
+“What happened to him?” asked Carter.
+
+“Don’t you know? The Hoffs’ automobile hit us and overturned the
+motorcycle.”
+
+“The Hoffs’ car!” cried Fleck and Carter together.
+
+“Yes, I thought you knew.”
+
+“Tell us everything,” demanded Fleck. “Where did it happen? Did they
+run you down purposely?”
+
+“I don’t think so; in fact I am sure they didn’t. It was entirely
+accidental.”
+
+“Where did it happen? All Dean could remember was that you had picked
+up their trail about ten miles south of West Point. He could not tell
+how the accident occurred. He didn’t even mention the Hoffs or seem to
+suspect that they were anywhere near at the time.”
+
+“I don’t think he saw their car at all,” Jane explained. “I caught just
+a glimpse of it before we were crashed into. We were on a mountain road
+going down a steep hill when their motor shot out of a deep cut just as
+we were passing.”
+
+“What happened then?”
+
+“I must have been stunned for a moment or two. When I regained my
+senses the Hoffs’ car had stopped, and Frederic was backing the car to
+where the accident had happened. His uncle was storming at him for
+stopping. He wanted Frederic to go on and leave us there, but Frederic
+wouldn’t do it, and they quarrelled. Frederic won out by pointing out
+that two bodies lying at the entrance would arouse suspicion.”
+
+“At the entrance to what?”
+
+“I don’t know. He didn’t say. I think I could find the place again.”
+
+“We’ve got to find it,” said Carter.
+
+“Indeed we have,” Jane agreed, “and quickly, too. I fear we are going
+to be too late. Old Mr. Hoff seemed to be in terrible haste and spoke
+of their plans being nearly completed.”
+
+“Go on,” said Fleck quietly, “tell us the rest.”
+
+“Frederic Hoff stayed behind to pick us up, and the old man went off on
+the motorcycle. I heard them talking about his taking a train at the
+nearest station.”
+
+“What did young Hoff do when he found it was you lying there?”
+
+“He seemed surprised and startled.”
+
+“What did he say?”
+
+Jane colored and hesitated. There rose in her mind the picture of his
+tall figure bending over her, with anguish in his eyes, with
+expressions of endearment on his lips. She could not, she would not
+tell them what he had said.
+
+“He asked if I was hurt.”
+
+“Is that all?”
+
+Again she blushed and hesitated.
+
+“That’s all.”
+
+“Did he not seem amazed at finding you there? Did he not ask you to
+account for your presence there?”
+
+“No,” said the girl, firmly, “he didn’t.”
+
+“Didn’t he question you at all?”
+
+“No,” she insisted, “he was busy getting Dean into the car. He was
+unconscious, and it looked as if he was badly hurt.”
+
+“Queer, mighty queer,” muttered Carter to himself.
+
+“Didn’t he ask you who Dean was?” questioned Fleck.
+
+“I explained that he was our chauffeur. He may have known him by sight
+at any rate.”
+
+“Go on.”
+
+“We stopped at the house of the first doctor we came to and left Dean
+there, and then Mr. Hoff brought me on home in the car. At the ferry he
+put me into a taxi.”
+
+“What did you talk about on the trip home?” asked Fleck suspiciously.
+“Didn’t he try to pump you?”
+
+“We hardly talked at all. He seemed concerned only in getting me home
+without its becoming known that I had been in an accident.”
+
+“Is that all?” asked the chief. She could see by his manner that he
+mistrusted her, that he felt that she was keeping something back.
+
+“We hardly exchanged a dozen words,” she insisted.
+
+Fleck shook his head in a puzzled way.
+
+“I can’t understand it at all,” he said. “Old Otto is a common enough
+type of German, painstaking, methodical, stupid, stubborn, ready to
+commit any crime for Prussia, but the young fellow is of far different
+material. He has brains and daring and initiative. He is far more alert
+and more dangerous. I cannot understand his finding you there and not
+trying to discover what you were doing.”
+
+“I can’t understand that either,” Jane admitted.
+
+“There’s no doubt in my mind,” the chief continued, “that Frederic Hoff
+is the real conspirator, the head of the plotters.”
+
+“Why do you say that?” asked Jane quickly. “What did you find out when
+you searched the apartment yesterday?”
+
+She felt certain from the manner in which he spoke that he must now
+have some damning evidence of Frederic Hoff’s guilt. He was not in the
+habit of making decisions without proof.
+
+“We found,” said Fleck, his keen eyes fixed on her face as if trying to
+read her innermost thoughts, “a British officer’s uniform hanging in
+Frederic Hoff’s closet, proof positive that he is a dangerous spy.”
+
+“And,” said Carter, pointing to the two clippings lying on Fleck’s
+desk, “in the old man’s waste-paper basket we found those.”
+
+Jane picked up the clippings and examined them curiously.
+
+“What are they?” she asked, looking from one to the other; “cipher
+messages of some sort?”
+
+“We think so,” said Carter. “We don’t know yet.”
+
+“I’ve noticed these peculiar advertisements often,” said Jane, studying
+the clippings, “but I never thought of connecting them with the Hoffs.
+I wonder—” Fleck and Carter had their heads together and were talking
+in low tones.
+
+“I wonder,” said the chief, “what young Hoff is up to. He must have
+known the girl was there to spy on him. I can’t understand his not
+quizzing her.”
+
+“He’s a cagey bird,” Carter replied. “They are both of them expert at
+throwing off shadowers. Both of them know, I think, they are being
+watched.”
+
+“Oh, listen,” interrupted Jane, all excitement. “I believe I can read
+this cipher. The number of letters in the word in big type at the
+beginning of the advertisement is the key. See, this word here is
+‘remember’—that has eight letters. Read every eighth word in this
+advertisement. I’ve underlined them.”
+
+Fleck took the paper quickly from her hand and he and Carter bent
+eagerly over it to see if her theory was correct.
+
+REMEMBER
+
+
+Please, that our new paste, Dento, will
+_stop_ decay of your teeth. Sound teeth
+are _passports_ to good health and comfort.
+No good _business_ man can risk ill health.
+It is _closely_ allied with failure. The
+teeth if not _watched_ are quickly gone.
+
+
+USE DENTO
+
+
+A genuine, safe, pleasing paste for the
+teeth, prepared and sold only by the
+Auer Dental Company, New York.
+
+
+“Stop passports business, closely watched,” repeated Fleck aloud. “That
+certainly makes sense and fits the facts, too. In the last few days we
+have drawn the net closely around a gang of supposed Scandinavians who
+have been busy supplying passports to suspicious-looking travelers.
+Let’s see the other advertisement.”
+
+Excitedly the three of them read it together as Fleck underscored every
+fourth word.
+
+DON’T
+
+
+Forget it is _imperative_ for one and _all_
+to use cleansing _agents_ on teeth that
+_leave_ no bad results. “_Ship_ more of
+that _wonder_-working paste immediately.
+_Workers_, employers, wives, all _ready_ to
+commend it. _Friday’s_ supply gone,”
+writes a druggist, to whom a big shipment
+was made last week.
+
+
+USE DENTO
+
+
+A genuine, safe, pleasing paste for the
+teeth, prepared and sold only by the
+Auer Dental Company, New York.
+
+
+“Imperative all agents leave ship. Wonder-workers ready Friday,” read
+Fleck. “That’s surely a message, a warning to Germany’s agents to get
+off some ship or ships before they are destroyed. You, Miss Strong,
+have heard old Otto talk about the wonder-workers, whatever they are,
+being nearly ready. I guess he means bombs—bombs to blow up American
+transports. This message says they will be ready Friday.”
+
+“And to-morrow’s Friday,” said Jane.
+
+
+
+
+CHAPTER XIII
+THE SEALED PACKET
+
+
+“Is this Miss Strong?”
+
+Jane, her face blanching, held the receiver in wavering hands for a
+moment before she could muster courage to answer. She had recognized
+Frederic Hoff’s voice speaking. What could he want with her now?
+
+“It is Miss Strong,” she managed to answer.
+
+“This is Frederic Hoff. May I come in for a moment? It is most
+important.”
+
+Again Jane hesitated. Frederic was the last person in the world she
+felt like seeing just at this moment. Only five minutes before she had
+arrived home from Chief Fleck’s office. She was under orders to hold
+herself in readiness to start immediately for the scene of yesterday’s
+accident. That this trip, unless their plans miscarried, would
+inevitably result in the exposure and disgrace of both the Hoffs she
+felt morally certain. To face on friendly terms the man whose downfall
+she was plotting, the man who only a few hours before had told her that
+he loved her, seemed a task far beyond her endurance, a situation too
+tragic for her to cope with.
+
+Duty, her duty to her country, her honor, her patriotism, her affection
+for her soldier brother, all bade her mask her feelings and seek one
+more opportunity of leading Hoff to betray himself in conversation if
+that were possible. Yet, to her own amazement and horror, her heart
+protested vigorously against such action. Harassed as she was by
+conflicting emotions, worn out by the trying experiences that had been
+hers the last few days, she realized at last that she was really in
+love with Hoff. The throb of joy that she had experienced at the sound
+of his voice, the thrill that came to her each time she saw him, the
+delight she found in his presence, the fact that despite all the
+circumstances, she wanted to be near him, to be with him, convinced her
+against her will and judgment that her heart was his. In vain she
+marshalled the damning facts against him. She tried to remember only
+the expression of murderous hate she had seen on his face the night
+that her predecessor, the other K-19, had been murdered. She tried to
+think of him only as a treacherous spy, an enemy of her country forever
+plotting to destroy Americans, yet she could not. However base and
+treacherous and low her reason told her Frederic Hoff must be, her
+refractory heart persisted in beating faster at the prospect of his
+coming.
+
+Hitherto not much given to self-analysis, she now found herself
+wondering at herself. What could be the matter with her? Why must she
+love this rascal? Why could she not fall in love with some decent,
+clean, patriotic young American, with some man like Thomas Dean?
+Chauffeur though he was now pretending to be, she knew that he was a
+college man, well-bred, and traveled. She knew, too, that Dean was in
+love with her. For him she had a sincere liking, great admiration even,
+and toward him now she was experiencing that feeling of sympathy a
+woman always has for the man she cannot love. But her feeling toward
+Dean, she classified as only that of friendship, nothing at all like
+the passionate affection that was rapidly drawing her closer and closer
+to Hoff.
+
+Dared she see him now? Might not her love for him overcome her high
+desire to be of service to her country? Might she not be led by her
+unruly heart into betraying to him the fact that he was in the most
+imminent peril?
+
+Yet she must see him, she told herself. Perhaps this very day he might
+be arrested and imprisoned. She might never again have the opportunity
+of seeing him alone and of talking with him. Into her troubled brain
+came a daring thought. Perhaps it was not too late, even yet, to turn
+him from his evil course. Was there, she wishfully wondered, any
+possibility of her leading him, through his love for her, to forsake
+his comrades, even to betray them? No, she admitted to herself, that
+was a preposterous idea. He was too dominating, too forceful, too
+determined, to be influenced to anything against his will.
+
+“May I come in, please?” he kept insisting over the ’phone.
+
+“Only for a minute,” she answered tremulously. “I’m going out soon. I
+have an engagement.”
+
+“I’ll come right over. I will not keep you long.”
+
+As she awaited his arrival, subconsciously desirous of looking her best
+in his presence, she stopped almost mechanically before her mirror to
+adjust her hair, letting him wait for her for a few minutes.
+
+He sprang forward to meet her as she entered the room where he was, his
+face beaming with delight at the sight of her.
+
+“Jane,” he cried, with a volume of meaning in the monosyllable, as
+seizing her hand, he held it tightly and gazed earnestly into her face.
+
+Bravely she tried to meet his gaze, to read in his face if she could
+the object of his unexpected visit, but her eyes fell before his, and
+the hot blood surged into her cheeks. Within her raged a desperate
+battle between her head and heart. Mingled with her unwelcome
+quickening of the pulse at his approach and admiration for his audacity
+in coming to her when he must know that she knew what he was, there was
+also an overwhelming sense of futile rage that he, a scheming German
+plotter, dared intrude his presence into an American home.
+
+“I’m glad to see you appear no worse for your accident,” he said,
+releasing her hand at last. “You got home all right, without attracting
+any one’s notice?”
+
+“Oh, yes,” she answered, trying to make her reply seem wholly
+indifferent and disinterested.
+
+“Your chauffeur is all right, too,” he went on. “I telephoned this
+morning. He had already left the doctor’s. There’s nothing more the
+matter with him than a broken arm and a scalp wound. That’s fortunate,
+isn’t it?”
+
+“Very fortunate,” she admitted.
+
+All at once as they stood there there seemed to have arisen between
+them an invisible, impenetrable barrier. They faced each other
+wordlessly, each embarrassed by the knowledge of the secret gulf that
+was between them. Hoff was the first to recover from it.
+
+“Come,” he said, “sit down. There is something I wish to say to
+you,—something of the utmost importance, Jane.”
+
+Still struggling with her emotions, Jane allowed him to place a chair
+for her and seated herself, striving all the while to crush back into
+her heart the warmth of feeling toward him that always overwhelmed her
+in his presence, endeavoring to present to him a mask of cold
+indifference. Yet her curiosity, as well as her affections, had been
+greatly stirred by his remark. What was it that he was about to say to
+her? Did he intend, in spite of the insurmountable obstacles between
+them, dared he, ask her to marry him? Tremblingly she waited for what
+he had to say.
+
+“Jane,” he said, “you know that I love you. I am confident, too, that
+you love me.”
+
+“I don’t love you,” she forced her unwilling lips to say. “I can’t.
+When our country is at war, when she needs men, brave men, how could
+any true American girl love any man who stayed at home, who idled about
+the hotels, who—”
+
+“Girl,” his voice grew suddenly stern and commanding, softening a
+little as he repeated her name, “Jane, dear, let me finish. I love you.
+There are grave reasons—all-important reasons—why I may not now ask you
+to be my wife.”
+
+
+Illustration: She could not bring herself to tell him, the man she
+loved, the thing she knew he was.
+
+
+“I never could be your wife,” she cried desperately, “the wife of a—”
+
+The word died in her throat. She could not bring herself to tell him,
+the man she loved, the thing she knew he was.
+
+“My Jane,” he said, wholly unheeding her impassioned protest, “you know
+little yet of what life means in this great world of ours. You, here in
+your parents’ home, sheltered, protected, inexperienced, have not the
+knowledge nor the means of judging me. You must take me on faith, on
+the faith of your love for me. For a woman, life holds but two great
+treasures, two loves—her husband’s and her children’s. With a man it is
+different. Love is his, too, but there is something more, something
+bigger—duty. Here in your country—”
+
+Even in her distress she caught his phrase “here in _your_ country” and
+turned ghastly white. Always before in talking with her he had spoken
+of himself as an American. Did he realize, she wondered, that he had at
+last betrayed himself to her? Was he about to strip the mask from
+himself and his activities at last, and in the face of it all expect
+her, Jane Strong, to admit that she loved him?
+
+“Here in your country,” he went on placidly, “women forced by economic
+conditions have been driven from home into business, into politics,
+into office-holding, even into war activities. Longing for the clinging
+arms of little children they are striving to forget in assuming some
+part in the affairs that belong properly to men. But to the true woman
+love must ever mean more than duty, more than country. Those are words
+for men. A woman, if she would find happiness, must follow her heart,
+must forsake all for the man she loves. A woman’s duty is only to the
+man she loves, just as a man’s duty is to be true to himself, to his
+country.”
+
+“But,” she cried, “you told me you were American, that you were born
+here?”
+
+“Jane,” he persisted, with an impatient gesture, “we will not discuss
+that now. I love you. You must trust me in spite of everything. I know
+you will. You must. I can answer no questions. I can make no
+explanations. I can only say I love you. That must suffice.”
+
+“No, no,” she protested, almost sobbing.
+
+“I came here to-day,” he went on calmly, “to ask a favor of you.”
+
+“A favor,” she cried.
+
+Calming herself she forced herself to look into his face. There was
+something so monstrously unbelievable about his audacity that she could
+hardly believe her ears. What sort of a credulous stupid creature was
+he, she angrily asked herself, that in one breath he could all but
+confess to her that he was a spy and in the next beseech her to do him
+a favor. Yet there came to her now a remembrance of her duty to her
+country. She felt that she must mask her feelings toward him, that if
+she was to be of service she must endeavor bravely to lead him on. She
+must try to induce him to confide in her. Hard as her task might be,
+what was it compared to the work her brother and those other brave
+American boys had undertaken facing the fire of death-dealing guns,
+facing the terrible gas attacks, living for days and weeks in those
+terrible trenches? Reinforced by a sense of duty, she made a pitiable
+effort at cordiality as she asked:
+
+“What is it you wish of me?”
+
+From one of his pockets he had brought forth a small packet which he
+held out to her. In spite of her agitation she forced herself to study
+it observingly, making note that it was tied with strong cord and
+sealed in several places with red wax. Curiously, too, she noted that
+on it was written her own name.
+
+“Jane,” said Hoff, “to-night I am going away. I may be absent for only
+a day or two if all goes well, but it is possible I may never come
+back,—may never be able to see you again.”
+
+She caught her breath sharply. There was the solemnity of finality in
+his tones. Where was he going? What might happen to him? She realized
+that the journey he was about to make was in connection with the plot
+that she and Chief Fleck were seeking to uncover. Evidently he
+anticipated peril in what he was about to undertake. Suppose he should
+be trapped in the commission of some act inimical to America’s welfare?
+What would happen to him? He would be arrested, of course. More than
+likely he would be sent to prison. He might even be shot as a spy. What
+if she were the one responsible for his meeting a disgraceful death?
+How could she go on with it? She must warn him. She must try to
+persuade him to give up his plans. She tried hard to steady herself, to
+think calmly. She must listen to every word he was saying and try to
+remember it.
+
+“This little packet is for you,” he went on. “I want you to keep it
+safely. In case anything happens, in the event that within one month I
+have not returned and you have heard nothing of me, I wish you to open
+it and keep what it contains. Promise me that you will do what I ask.”
+
+In a panic of indecision she got up from her chair, trying to frame a
+score of questions, but none of them succeeded in passing the barrier
+of her trembling lips.
+
+“Promise me,” he said softly yet impellingly, as he placed the little
+packet in her hand and closed her fingers over it.
+
+“I promise,” she whispered, hardly knowing what she said.
+
+Quickly he caught her in his powerful arms. For just a second he held
+her there, his face close to hers, his blue eyes burning into hers with
+a steady inscrutable gaze as if he was trying to read in them the love
+her lips had refused to speak.
+
+Then, so quickly that it was all over before she quite realized what
+had happened, he had kissed her passionately full on the lips and was
+gone.
+
+Overcome with the lassitude which follows emotional crises, trembling
+in every limb, weak as from a long illness, the girl sank back into a
+chair, still clutching in her hand the sealed packet Hoff had entrusted
+to her. Minute after minute she sat there with staring eyes, with heart
+beating madly, with her whole body racked with the torment of her
+thoughts.
+
+Slowly she lifted the packet and turned it over and over, wondering
+what it could possibly contain, questioning herself as to what could
+have been Frederic Hoff’s motive in entrusting it to her. Was there,
+she wondered, under those seals, some evidence of his guilt and
+treachery that he had not dared to leave behind him? He must have known
+that she suspected him and was seeking to entrap him. Had he, knowing
+all this, but sensing the love for him that he had kindled in her,
+taken advantage of it and extorted from her her promise to keep it
+safe?
+
+Wherein lay her duty now? More than ever she was certain that Frederic
+Hoff was on some hazardous mission for the enemy. He had all but
+admitted his nationality to her. Her own country’s welfare demanded
+that the Hoffs’ plans should be discovered and thwarted. Should she, or
+should she not open the package? Possibly it contained some secret
+code, some clue to the dastardly activities in which he and his uncle
+were engaged.
+
+But her heart rebelled. She recalled what he had said, that she must
+take him on trust. The memory of his burning kiss, of that last earnest
+look he had given her, refused to be forgotten. Whatever he was,
+however base the work in which he was engaged, she knew down deep in
+her heart that Frederic Hoff had been earnestly sincere when he had
+said that he loved her.
+
+As she debated with herself what she ought to do, the telephone rang
+again. It was Chief Fleck.
+
+“Can you meet me at the 110th Street subway station in half an hour?”
+he asked. “I’ll be waiting in my car. Arrange it, if you can without
+arousing your family’s suspicion, to be away all night.”
+
+“I will be there,” she answered.
+
+As she turned away from the telephone with sudden resolve she thrust
+the sealed packet, still unopened, into the bosom of her gown.
+
+“I promised him,” she said almost fiercely. “I’ll keep my promise. That
+much at least I owe our love.”
+
+
+
+
+CHAPTER XIV
+THE MOUNTAIN’S SECRET
+
+
+In a turmoil of mental anxiety Jane waited the arrival of Chief Fleck
+at the place he had designated. She was still badly wrought up by the
+scene through which she had just passed with Frederic. There were
+moments when her heart insisted that, regardless of the despicable
+crimes that were laid at his door, she should forsake everything for
+him, for the man she loved. Had there been in her mind the slightest
+possible doubt as to his guilt she might indeed have wavered, but the
+evidence of his treachery seemed too manifest! She loathed herself for
+caring for him and felt it her sacred duty to go on with her work of
+aiding the government in trying to entrap both of them; yet how could
+she ever do it?
+
+As she waited she debated with herself whether or not to tell Chief
+Fleck what had passed between herself and Frederic. After all, why
+should she? That was her own secret, not the country’s. If she stifled
+her love, and gave her best efforts to aiding the other operatives in
+running down the conspirators, what more could be expected of her?
+Certainly she was not going to tell any one of the sealed packet
+Frederic had entrusted to her. She had promised him she would keep it
+safe. Surely there could be no harm in that, yet the little parcel,
+still in the bosom of her gown where she had thrust it, seemed to be
+burning her flesh and searing itself into her very soul.
+
+In strong contrast with her own spirit of martyrdom was Fleck’s manner.
+Never before had she seen him in such high spirits as he was when he
+drew up before the subway station in a low car built for speed. On the
+seat beside the chauffeur was a young man whom she recognized as
+another of the operatives. As Fleck swung the door of the tonneau open
+for her she noticed lying on the floor under a rug several rifles and
+drew back questioningly.
+
+“Come on, Miss Strong,” he cried gaily. “Don’t be afraid of them. We
+may be glad we have them before we return from our hunting expedition.”
+
+“But,” she asked hesitatingly as she took her seat beside him, “you
+don’t expect to shoot these men—without a trial.”
+
+Her heart seemed torn in anguish as she sensed anew the peril that lay
+ahead for Frederic. Misgivings that she might be unable to fulfil her
+task seized her, and she was smitten with reproach for her own conduct
+toward him. Why, an hour ago, when there was still opportunity, had she
+not warned Frederic? If he were really sincere in the affection he
+professed for her maybe she might have persuaded him, if not to betray
+his comrades, at least to abandon them and escape from the country. Yet
+even now her reason told her that any plea she might have made would
+have been worse than futile. Above and beyond his love for her she
+understood that he held sacred what he conceived to be his duty, his
+misguided duty to his erring country. It was too late now for regrets,
+for repentance, too late for her to do anything but to try to serve her
+country, cost her what it might, yet anxiously she awaited Chief
+Fleck’s reply to her question.
+
+“Wouldn’t I shoot them all on sight, gladly, the damned spies,” he
+responded. “That’s the great trouble with this country, Miss Strong.
+We’re too soft-hearted and chivalrous. The Germans realize that war and
+sentiment have no place together. If killing babies and destroying
+churches will in their opinion help them win the war they do it without
+compunction. The civilized world decided that poison gas was too brutal
+and dastardly for use, even against an enemy, but that didn’t stop the
+Huns from using it. They put duty to Germany above all else, and if
+their country expects it are ready to rob, murder, use bombs, betray
+friends, do anything and everything, comforted by the knowledge that
+even if we do catch them at it here in this country all we will do to
+them will be put them in jail for a year or two. If I had my way I’d
+shoot them all on sight.”
+
+“Without any evidence—without trying them?” questioned Jane.
+
+“Without trial, yes—without evidence, no; but in the case of these
+Hoffs we have evidence enough to stand them both up and shoot them.”
+
+“Have you learned more?” she asked quickly. “Is Frederic, too, involved
+with his uncle?”
+
+He shot an appraising glance at her. He had been inclined to regard
+Dean’s suspicion that she was in love with the younger Hoff as the mere
+figment of jealousy, but where two young persons of the opposite sex
+are thrown together, there is always the possibility of romance. Jane
+colored a little under his searching glance, yet what he read in her
+face seemed to satisfy his doubts, and he made up his mind to take her
+fully into his confidence.
+
+“Thanks to your quick wit in reading those advertisements,” he said,
+“we have now a fairly complete index of the Hoffs’ activities in the
+last six months. I have been spending the last two hours in going over
+all the Dento advertisements that have appeared. For weeks they have
+been sending out a regular series of bulletins.”
+
+“Bulletins about what?” asked Jane.
+
+“About everything of interest to the secret enemies of our country:
+explanations of where and how to get false passports, detailed
+statements of the sailings of our transports, directions for obtaining
+materials for making bombs, instructions for blowing up munition
+plants, suggestions for smuggling rubber, orders for fomenting strikes.
+They even had the nerve to use the name of William Foxley, signed to a
+testimonial for Dento.”
+
+“Who is William Foxley?” asked Jane curiously.
+
+“In the Wilhelmstrasse code that was in use when Von Bernstorff was
+still in this country; in sending their wireless messages they made
+frequent use of proper names which had a code meaning. Boy-ed was
+‘Richard Houston,’ Von Papen was ‘Thomas Hoggson’ and Bolo Pascha was
+always mentioned as ‘St. Regis,’ In this same code ‘William Foxley’
+always meant the German Foreign Office.”
+
+“But surely you did not learn this from the advertisements?”
+
+“Not at all. Hugo Schmidt, who was reputed to be the paymaster of the
+gang, was caught trying to burn a copy of this code at the German Club.
+With the records of their wireless messages our government managed to
+reconstruct the whole code. The use of a word or two from this code in
+these advertisements is most significant. It shows that whoever
+prepared these advertisements was high in the confidence of the German
+government. Only the very topnotch spies are likely to be permitted to
+know the diplomatic code.”
+
+“And you think, then, that Otto Hoff may be the head of the
+conspirators in this country?” said Jane.
+
+“Not Otto—Frederic,” said Fleck quickly. “The young man, I am certain,
+was the director, probably sent out from Berlin after the country
+became too hot for Von Papen and Boy-ed. The old man, I believe, merely
+carried out his orders. I doubt even if they are uncle and nephew.”
+
+“I think you are wrong about that,” protested Jane. “Whenever I was
+listening over the dictograph it was always the old man who was so
+bitter against America. It was he who talked about the wonder-workers
+and the necessity for haste. I never heard Frederic say
+anything—anything disloyal, that is.”
+
+“The fact that he knew enough to keep his mouth closed shows that he is
+the more intelligent of the two. Don’t forget, too, that at times he
+even dared to don the uniform of a British officer. You saw him
+yourself. Undoubtedly he is the more dangerous of the pair.”
+
+“But who read these advertisements?” asked Jane, seeking to change the
+subject. “For whom were the bulletins intended?”
+
+“It was one of their ways of keeping in communication with their
+thousands of secret agents all over this country. I wouldn’t be
+surprised if occasionally these advertisements were printed in Texas
+papers and shipped over the border into Mexico. We have been watching
+the mails and the telephone and telegraph lines for months, yet all the
+while Mexico has been sending messages across, telling the U-boats
+everything they needed to know. We never thought of checking up the
+advertising in papers in the Mexican mail.”
+
+“But what about the messages old Mr. Hoff left in the bookstores? Was
+that part of the plan, too?”
+
+“It may have been simply a duplicate method of communication in case
+the other failed. The Germans here know that they are constantly
+watched and take every precaution. We’ll land that girl as soon as we
+have the Hoffs safe behind the bars, and then we’ll soon see if
+Carter’s dachshund theory was right.”
+
+“But who,” asked Jane, “is the spy in our navy? Who signalled the
+Hoffs’ apartment and supplied them with the news about our transports?
+Was it Lieutenant Kramer?”
+
+“Probably,” said Chief Fleck carelessly, “that is not my end of the
+work. It is up to the Naval Intelligence Bureau to clean out the spies
+in the navy. I’m after the boss-spy. After we land him it will be
+easier to get the small fry. A defiant German prisoner once boasted to
+me that Germany had a man on every American ship, in every American
+regiment, and in every department in Washington. I suspect it comes
+pretty near being true. A country that has so many citizens with German
+names and such an enormous population of German descent has its hands
+full.”
+
+As they talked the chief’s car had crossed the ferry, and turning north
+through Englewood, was heading rapidly in the direction of West Point.
+
+“Where are we going now?” Jane ventured to ask. “To the place where I
+was yesterday—where we had the accident?”
+
+“Not directly,” the chief replied. “I sent Carter and some men up there
+ahead of us to do some reconnoitering. I’ll get in touch with Carter at
+the restaurant at the State Park. He was to call me up. We are nearly
+there now.”
+
+As the car swung into the park and stopped before the entrance of the
+two-story restaurant building, Fleck sprang hastily out and started for
+the telephone but stopped abruptly at the sight of a young man with
+bandaged head and with one arm in a sling who rose from the concrete
+steps of the building to greet him.
+
+“Why, Dean,” he exclaimed in amazement, “what are you doing here? How
+did you get here?”
+
+“You don’t think I was going to be left out at the finish,” laughed the
+chauffeur.
+
+“But your injuries, your arm—”
+
+“Both all right, as right as they’ll be for several weeks.”
+
+“But how did you know we were coming here? How did you manage to get
+here?”
+
+“Carter stopped on his way out to make sure about the road. I wanted to
+come with him, but there was no room in his car. He refused to bring
+me, anyhow. I managed to worm out of him what your plans were, and the
+doctor’s jitney did the rest.”
+
+“Well,” growled the chief, with simulated indignation, though secretly
+delighted with Dean’s show of spirit, “I suppose there’s nothing else
+to do but to take you along. Climb in there beside Miss Strong.”
+
+As Dean approached the car Jane rose in amazement.
+
+“Oh, Thomas, Mr. Dean,” she cried, “I’m so glad to see you. I was
+afraid yesterday that you had been badly hurt.”
+
+“It was a close shave for both of us,” he admitted, flushing with
+delight at the warmth of her greeting, “but what are you doing here?
+The Chief had no business to bring you on a trip like this.”
+
+All his affection for the girl had revived at this unexpected sight of
+her, and with a lover’s righteous anxiety he resented Fleck’s having
+exposed her to the probable perils of this expedition to the enemy’s
+secret lair.
+
+“They needed me,” she said simply, “to show them the way.”
+
+“That need exists no longer,” he protested, “since I am here. The Chief
+must send you back.”
+
+“Don’t be absurd,” she objected warmly.
+
+“But it is no place for a woman,” he insisted doggedly, kicking
+meaningly at the rifles on the floor of the car. “There may be a fight.
+These men are desperate and dangerous and more than likely will resist
+any attempt to arrest them.”
+
+“I want to be there to see it if they do,” said Jane calmly.
+
+“Please, won’t you, for my sake,” he begged, “go back home or at least
+wait here for us?”
+
+“I won’t,” said the girl doggedly.
+
+“I’ll ask the Chief to send you back.”
+
+“Don’t you dare,” she retorted hotly, resenting his air of protection
+toward her.
+
+She was glad for the presence of the two other men in the car. She
+sensed that it was only their being there that kept Dean from making a
+scene. There was nothing in his manner toward her now of the obsequious
+chauffeur. While she admitted to herself that there was no longer the
+necessity for his continuing in his fictitious character she strongly
+resented his loverlike jealousy for her welfare and welcomed the
+chief’s return, for she saw from his face, as he came running up to the
+car, that he had received some sort of news that had highly delighted
+him.
+
+Almost before he was in the car he had given orders to start, leaving
+no opportunity for Dean to make his threatened protest against Jane’s
+presence.
+
+“I got Carter on the ’phone,” Fleck explained hurriedly as they swung
+out of the park and turned northward. “He has succeeded in locating the
+place the Hoffs go every week. It is about three miles back off the
+road, over toward the river from the place where you two had that
+accident yesterday. Away off there in the woods in a deserted locality
+is a sort of club, the members of which are Austrians or Germans. They
+have given it out that they are health enthusiasts and mountain
+climbers, ‘Friends of the Air,’ they call themselves.”
+
+“Who are they really? What are they doing there?” asked Jane
+interestedly.
+
+“Carter has not had time yet to learn much about them. The place was
+some sort of a health resort or sanitarium that failed several years
+ago. Last summer it seems to have been taken over by this bunch of
+Germans. At times there are only two or three of them there, but
+recently the number has increased. Carter thinks there must be a dozen
+men there now.”
+
+“How did he locate the place?” asked Dean.
+
+“Carter is a real detective,” said the chief enthusiastically. “He
+reasoned it out that where there were Germans there must be beer. He
+scouted along the main road until he found a wayside saloon where, as
+he had shrewdly suspected, they got their liquid supplies. From the
+proprietor of the place and the hangers-on he had no trouble in getting
+the information he wanted without arousing their suspicions.”
+
+“Where is Mr. Carter now?” asked Jane.
+
+“He’s waiting for us a few miles up the road.”
+
+“He has only four men with him, hasn’t he?” questioned Dean.
+
+“That’s all.”
+
+“And there are four of us here.”
+
+“Three and a half,” said the chief, motioning to Dean’s bandaged arm.
+
+“It’s my left arm,” he retorted. “I can handle a revolver, at least,
+with my good arm.”
+
+“And I can shoot, too,” boasted Jane; “that makes nine of us.”
+
+“Nine of us against twelve of the enemy,” said the chief thoughtfully.
+“It looks like a busy evening.”
+
+“And don’t forget,” warned Jane, “that the Hoffs are coming up this
+evening. At least young Mr. Hoff told me this morning that he was going
+away this evening. That makes two more on the other side.”
+
+“And one of them,” muttered Fleck, “a mighty dangerous man.”
+
+
+
+
+CHAPTER XV
+THE HOUSE IN THE WOODS
+
+
+At last they had reached their goal, the place which the two spy
+suspects undoubtedly had been in the habit of visiting regularly every
+week for months past.
+
+Sheltered by a great rock and the underbrush about it, Jane, with Fleck
+and Thomas Dean, peered eagerly out at a dingy, weather-beaten frame
+structure which neighborhood gossip had told them was the sheltering
+place of the “Friends of the Air.” In its outward appearance at least,
+Jane decided, it was disappointingly unmysterious. It looked to her
+merely like a cheap summer boarding-house that had gone long
+untenanted. There was a two-story main building, cheaply constructed
+and almost without ornament, sadly crying for new paint, and the usual
+outbuildings found about such places in the more remote country
+districts.
+
+Still from Chief Fleck’s manner she was certain that he regarded their
+achievement in locating the place as of the highest importance. They
+had run their two automobiles noiselessly up the lane leading from the
+main road until they were perhaps half a mile distant from the house
+and then had concealed them in the woods near-by, being careful to
+obliterate all traces of the wheel tracks where they had left the lane.
+Making a détour among the trees they had reached their present position
+not more than three hundred yards away from the buildings. They had
+carried the rifles with them, and these now were close at hand, hidden
+under the log on which the three of them were sitting. Carter, with the
+other men, under Fleck’s orders, had divided themselves into scouting
+parties and had crept away through the woods to study their
+surroundings at still closer range while the waning afternoon light
+permitted.
+
+At first glance one might have been inclined to believe the buildings
+untenanted. There seemed to be no one stirring about the place, and
+some of the unshuttered windows on the second floor were broken. The
+only indications of recent occupation were a pile of kegs at the rear
+of the house and near-by a heap of freshly opened tin cans. Near one of
+the larger outbuildings, too, was a pile of chips and sawdust.
+
+“There does not seem to be any one about,” whispered Jane. “What do you
+suppose they do here?”
+
+“I can’t imagine yet,” said Fleck with an impatient shake of his head.
+“The fact that this house is important enough for the Hoffs to visit
+once a week makes it important for us to cautiously and carefully
+investigate everything about it. It may be a secret wireless plant away
+off here in the woods where no one would think of looking for it. It
+might be a bomb factory where their chemists manufacture the bombs and
+explosives with which they are constantly trying to wreck our munition
+plants and communication lines. Perhaps it is just a rendezvous where
+their various agents, the important ones engaged in their damnable work
+of destruction, come secretly to get their orders from the Hoffs and to
+receive payment for their hellishness accomplished.”
+
+“It’s all so funny, so perfectly absurd,” said Jane with a nervous
+little laugh.
+
+“Absurd,” cried Fleck indignantly, “what do you mean? It’s frightfully
+serious.”
+
+“Of course, I understand,” Jane hastened to say. “I was just thinking,
+though, how funny we are here in America, especially in the big cities.
+We know nothing whatever about our neighbors, about the people right
+next door to us. In one apartment we’ll be doing all we can to help win
+the war, and in the apartment next door the people will be plotting and
+scheming to help Germany win, and it is only by accident we find out
+about it. Take my own father and mother. They haven’t the slightest
+suspicion of the people next door. They would hardly believe me if I
+told them the Hoffs were German spies. They see them every day in the
+elevator. Young Mr. Hoff has been in our apartment several times. My
+mother has met him and talked with him. I was just thinking how amazed
+and horrified she will be when she hears about it and learns what I
+have been doing.”
+
+“You are perfectly right,” said Fleck soberly. “We are entirely too
+careless here in America about our acquaintances and neighbors. We know
+that we are decent and respectable, and we’re apt to take it for
+granted that everybody else is. We don’t mind our neighbors’ business
+enough. Nobody in a New York apartment house ever bothers to know who
+his neighbors are or what their business is, so long as they present a
+respectable appearance. I know New York people who live on the same
+floor with two ex-convicts and have lived there for three years without
+suspecting it. We should have here in America some system of
+registration as they have in Germany. Tenants and travelers ought to be
+required to file reports with the police, giving their occupation and
+other details. If that plan were in use here enemy spies would lack
+most of the opportunities we have been giving them.”
+
+“Yes,” said Dean, “you are right. I’ve lived in Germany. Over there a
+crook of any sort can hardly move without the police knowing it. Their
+system certainly has its good points.”
+
+“It surely has,” Fleck agreed. “If the Prussians’ character were only
+equal to their intelligence they would be the most wonderful people in
+the world, but they are rotten clear through. They have no conception
+of honor as we understand it. Only the other day I read of a Prussian
+officer who led his men in an attack on a chateau, guiding them by
+plans of the place he had made himself while being entertained in the
+chateau as a guest before the war.”
+
+“Don’t you think any of them have a sense of honor?” asked Jane in a
+troubled tone.
+
+Her mind had reverted, as she found it frequently doing, to Frederic
+Hoff and the sealed packet he had entrusted to her. He had professed to
+love her and had demanded that she trust him. Was it, she wondered, all
+a base pretense on his part? Was he—for Germany’s sake—taking advantage
+of her affection for him to make her the unwitting custodian of some
+secret too perilous for him to carry about with him? Perhaps that
+little parcel she was carrying in the bosom of her gown contained the
+code he and his uncle used? Had it not been for Dean’s presence she
+might have been tempted to take Fleck into her confidence and tell him
+of the peculiar incident, though in spite of all she knew about him she
+felt that Frederic Hoff’s feeling for her was real, and that toward her
+he always would show only respect and honor, as he always had done
+hitherto; and yet—
+
+Before the chief had time to answer her question Dean with a whispered
+“hist” pointed to a path in the rear of the buildings they were
+watching. Behind the house two rugged hills, their sides of precipitous
+rock so steep that they hardly afforded a foothold, came down close
+together, making a V-shaped cleft through which a narrow path ran in
+the direction of the river. Looking toward this cleft to which Dean was
+pointing they now saw a group of workmen approaching the house.
+
+All of them were in the garb of mechanics, yet as they approached in
+single file down the path, the quick eye of the chief noted that they
+were keeping step.
+
+“They’ve all of them seen service,” he muttered to himself, “either in
+prison or in the German army.”
+
+Some of them carried kits of tools, and they walked with the air of
+fatigue that results from a day of hard physical work. They seemed to
+have no suspicion as yet that they were under observation, for as they
+walked they chatted among themselves, the sound of their German
+gutturals reaching the watchers, but unfortunately not distinctly
+enough to be audible. Dean was busy counting them.
+
+“There are fourteen,” he announced, “two more than we were expecting to
+find here.”
+
+“At what do you suppose they are working?” asked Jane curiously.
+
+“Here comes Carter,” replied Fleck. “Perhaps he can tell us. His face
+shows that he has learned something.”
+
+Carter, crawling rapidly but silently through the underbrush,
+approached breathlessly, his sweaty, begrimed countenance ablaze with
+excitement.
+
+“What’s up?” asked Fleck, as soon as he was within hearing.
+
+“My God, Chief,” he gasped, “they’ve got three big aeroplanes out there
+on a plateau overlooking the river—three of them all keyed up and ready
+to start.”
+
+“Friends of the Air,” muttered Fleck; “so that’s what it means.”
+
+“They’ve evidently smuggled all the material up and built the three
+planes right here,” Carter went on. “I watched them putting on the
+finishing touches and testing the guy-wires. There is a machine shop,
+too, rigged up in one of those outbuildings. The thing that gets me is
+how they got the engines here. All the planes are equipped with
+powerful new engines.”
+
+“If there are traitors in the army and navy, why not in the aeroplane
+factories, too?” suggested Fleck. “A spy in the shipping department
+could easily change the label on even a Liberty motor intended for one
+of Uncle Sam’s flying fields. Even when it didn’t turn up where and
+when it was expected, it would take government red tape three months to
+find out what had become of the missing motors.”
+
+“These machines”—said Jane suddenly, “they must be the ‘wonder-workers’
+old Mr. Hoff was always talking about.”
+
+“And that last advertisement we read,” Dean reminded them, “announced
+that the wonder-workers would be ready Friday. It looks as if we got
+here not a minute too soon.”
+
+“You bet we didn’t,” said Carter. “Every one of those three planes is
+fairly loaded down with big bombs, scores of them.”
+
+“To bomb New York,” said Fleck soberly; “that’s their plan. Zeppelins
+for England, big guns to shell Paris, bombs from the air for New York.
+It’s part of their campaign to spread frightfulness, to terrorize the
+world. Undoubtedly that is the reason Berlin sent Frederic Hoff over
+here, to superintend the destruction of the metropolis. There have been
+whispers for months and months that the city some day was to be bombed,
+but we never were able to discover their origin.”
+
+“And not a single anti-aircraft gun or anything in the whole city to
+stop them, is there?” cried Jane. “Wouldn’t it be terrible?”
+
+Fleck smiled grimly.
+
+“Any foolhardy German who tries to bomb New York from the air has a big
+surprise coming to him—a lot of big surprises. The war department may
+not have been doing much advertising, but it has not been idle.”
+
+“Then we have some anti-aircraft guns!” cried Jane delightedly. “I
+never heard anything about them.”
+
+“That would be telling government secrets,” said Fleck, smiling
+mysteriously, “but I’d just like to see them try it. I have sort of a
+notion to let them start their bombing.”
+
+“Oh, no, we mustn’t,” Jane insisted. “We mustn’t let those aeroplanes
+ever start. Can’t we do something right away to cripple them?”
+
+“There’s plenty of time,” the chief assured her. “It is best for us to
+wait until after dark. The early morning would be ideal time for an
+aerial attack on the city, when everybody is helpless and asleep.
+There’s generally a fog over the river and harbor, too, before sunrise
+at this season of the year, and that might help them to mask their
+movements. It would take an aeroplane less than an hour to reach the
+city from here, so that there is no likelihood of their starting until
+long after midnight. That gives us plenty of time, and besides we must
+wait until the Hoffs arrive.”
+
+“That will make two more—sixteen of them against our nine,” warned
+Dean.
+
+“We cannot help it how many of them there are,” said Fleck. “It is of
+vital importance for us to know just what their plans are. It is
+unlikely that they will post guards to-night in this secluded spot,
+where they have been at work in safety for months. As soon as it is
+dark we can smash the aeroplanes.”
+
+“That will be easy,” said Carter. “I know something about aeroplanes.
+Cut a couple of wires, and they are out of business. Sills, one of my
+men, is posted on bombs, and he’ll know just how to fix the fuses to
+render them useless.”
+
+“What’s more,” said Fleck, “if I understand German thoroughness, they
+will go over their final plans in detail to make sure that everything
+is understood. The darkness will let us slip up closer to the house,
+and we may be able to overhear what they say. Don’t forget, too, that
+our main job is to catch the Hoffs red-handed.”
+
+“That’s right,” said Dean. “They are the brains of the plot. These
+other fellows are just workmen taking orders.”
+
+“I’m puzzled,” said Fleck, “to know what they plan to do with the
+aeroplanes after the bombing has taken place. There is not one chance
+in a thousand of their being able to return here in safety without
+discovery. It will be sure death for the aviators that take up those
+machines.”
+
+“Sure death!”
+
+With a shudder Jane recalled what Frederic had said to her only a few
+hours ago as they parted—that he was going away and might never return.
+Was this what he had meant? Was he, Frederic, to be one of the
+foolhardy three who proposed to forfeit their lives in this desperate
+attempt to deal destruction from the air on a sleeping city, to wreck
+innocent homes, to cripple and maim and destroy helpless babies and
+women? She could not, would not believe it of him. That he had the
+courage and daring to undertake such a perilous task she did not doubt.
+She realized, too, that the controlling motive of all his actions was
+his high sense of duty toward his country, and yet in spite of all that
+she had learned about the plots in which she was enmeshed, her heart
+refused to believe that he ever could bring himself to participate in
+such wanton frightfulness. She recalled the spirit of mercy that he had
+shown toward herself and Thomas Dean after the accident as contrasted
+with the brutal indifference of his uncle. She kept hoping against hope
+that something might happen to prevent his arriving here. Devoutly she
+wished that she might awake and find that it was all a terrible
+mistake, a hideous unreality, and that the “Friends of the Air” were
+not in any way associated with the Hoffs.
+
+Yet her reason told her it must all be true, terribly, infamously true,
+and that he was one of them, perhaps the leader of them.
+
+One by one the members of the various scouting parties had come
+creeping in through the forest. All of them verified what Carter had
+already reported. One man, more venturesome than the others, had even
+dared to creep close up to the rear of the house and had seen through
+the window the workmen, gathered about their supper of beer and
+sausages, toasting the Kaiser with the unanimity of a set formality.
+
+As the light waned, secured from observation by the undergrowth between
+their position and the house, they sat there discussing plans of
+action, selecting while the light still permitted the most advantageous
+posts from which they could make a concerted rush on the plotters.
+Fleck was insistent that they should do nothing to betray their
+presence until after the Hoffs had arrived, and Dean once more voiced
+his protest against Jane taking part in the attack. “I will be of far
+more use than you with your crippled arm,” she resentfully insisted. “I
+can handle a revolver as well as any man, and a rifle, too, if
+necessary.”
+
+“Dean is right,” Fleck decided. “It is no work for a woman. Here is an
+automatic, Miss Strong. You will stay here until after we have rounded
+them up. If we get the worst of it, which is not likely to happen, make
+your way to the automobile and telephone the commandant at West Point.”
+
+Reluctantly Jane assented. She realized that further protest was
+useless. Fleck was in command, and his orders must be obeyed
+unquestioningly if their plans for the capture of the plotters were to
+be successfully carried out.
+
+Presently they heard in the distance the sound of an automobile
+approaching, and soon they could distinguish its lights as it
+negotiated the rough, winding woodland road that led to the house. A
+toot from the horn as it arrived brought the men within the house
+tumbling out the front door with huzzas of greeting for their leaders,
+and Fleck observed that all the men as they came out automatically
+raised their hands in salute.
+
+“Ex-German soldiers, every one of them,” he muttered.
+
+As the Hoffs got out of the car a shaft of light from the opened front
+door threw the figures of the new arrivals into sharp relief, and Jane
+saw, with a shudder of terror, that Frederic was dressed in an
+aviator’s costume. There was no longer any doubt left in her mind that
+he was one of those going to certain death, and a dry sob choked her.
+
+The Hoffs passed within the house, and the door was closed.
+
+“Now,” cried Fleck, “to your stations, men. Each of you take a rifle.
+You stay here, Miss Strong. Come on, Carter.”
+
+
+
+
+CHAPTER XVI
+THE ATTACK ON THE HOUSE
+
+
+In accordance with instructions already issued two of Fleck’s men
+rushed for the front of the house, where with rifles ready they stood
+guard, while the others took cover in the shadow of one of the
+outbuildings a few feet distant from the rear entrance.
+
+Apparently the plotters had been so long undisturbed in their mountain
+fastness that they had ceased to take even the most ordinary
+precautions against surprise. So far as could be discovered they had
+posted no guards over the aeroplanes and their deadly cargo, nor at
+either of the two doors to the main building. Nevertheless Fleck, as he
+crept stealthily up to the building with Carter at his side, took out
+his automatic and held it in readiness, and Carter followed his
+example.
+
+There was no moon to reveal their movements as they approached the rear
+of the house. The evening was warm, and one of the windows had been
+left open. Noiselessly they crept up to it and looked within. It opened
+into a large room used as a dining hall, where they could see all of
+the men clustered about one of the tables, at the head of which sat old
+Otto Hoff with Frederic at his side. On the table before him was what
+appeared to be a rough map or blueprint. Frederic and five of the other
+men, Fleck observed, now wore aviation costumes.
+
+“Comrades,” old Otto was saying in German, “here is the course. You
+will have no difficulty in following it. Down the river straight till
+you see the lights of New York. You each understand what you are then
+to do, yes?”
+
+“Certainly,” three of the men, the pilots evidently, responded.
+
+“Let us, to make sure,” old Otto insisted, “once more rehearse it. Much
+there is at stake for the Fatherland. You, Anton and Fritz, will blow
+up the transports and the warships that guard them. Six great
+transports are lying there, ready to sail at daylight The troops went
+aboard to-night. We waited until it was signalled that it was so. You
+must not fail. The biggest of those transports once belonged to
+Germany. You must teach these boastful Americans their lesson. That one
+boat you must destroy for certain. Beside the transports to-night lie
+five vessels of war, two battleships, three cruisers. Them you must
+destroy also, if there is time. To each transport, two bombs, to each
+warship, two bombs—twenty you carry. If all goes well, two you will
+have left. With these do what you will, a house, a church, it matters
+not—anything to spread the terror of Germany in the hearts of these
+money-grabbing Americans.”
+
+“It will be done,” said Anton solemnly.
+
+“I have thrown bombs before. You can trust me,” said Fritz.
+
+“You, Hans and Albert,” old Otto went on, “will fly over the city at
+good height. When you reach the end of the island you turn to the left,
+so, and come down close that your aim may not miss. Here will be the
+Brooklyn Navy Yard,”—he indicated a place on the map. “If there is fog
+the bridges will locate it for you. Smash the ship lying there, the
+shops, the dry docks; if it is possible blow up the munitions stored
+there.”
+
+“I know the place well,” Hans replied. “I worked there many months. I
+can find my way in the dark. It will be done.”
+
+“And to you, Herr Captain,” said Otto, turning to Frederic and
+saluting, “to you, whom the War Office itself sent here to oversee this
+all-wonderful plan of mine which it has seen fit to approve, to you and
+your mate falls the greatest honor and glory. You—”
+
+A suppressed sob at his side caused Fleck to turn quickly and lay his
+finger on the trigger of his revolver. There, close beside him,
+listening to all that had been said, was Jane. Left alone in the
+darkness she had found it impossible to obey the chief’s orders and
+remain where she was. Every little sound about her had carried new
+terrors to her heart. Hitherto she had not felt afraid, but the
+solitude filled her mind with wild imaginings. She was seized, too, by
+an irresistible desire to know what part Frederic was playing in this
+drama of the dark. Was his life in peril? Were Fleck and Carter now
+gathering evidence that would bring about his conviction, perhaps his
+shameful death? She must know what was happening. Quietly she had
+stolen up to peer through the window.
+
+Fleck, as he recognized her, with an angry gesture of warning to be
+silent, turned back to hear what Otto was saying.
+
+“—you, Frederic, have the glory of leading the expedition, of bombing
+that damned Wall Street which alone has kept Germany from winning her
+well-deserved victory. You will destroy their foolish skyscrapers,
+their banks, their business buildings. Your work will end this way. You
+will strike terror into the cowardly hearts of these American bankers
+whose greed for money has led them to interfere with our great nation’s
+rightful ambition. You shall show them that their ocean is no
+protection, that the iron hand of our Kaiser is far-reaching. Do your
+work well, and they will be on their knees begging us for peace.”
+
+“God helping me,” said Frederic, “I will not fail in my duty to my
+country.”
+
+There was something magnificent in his manner as he spoke, something
+almost regal, and Fleck regarded him with a puzzled air. Who was he,
+this man who had been sent out from Germany on this mission—this man to
+whom even old Otto paid deference? Despite the assurance with which he
+had spoken Fleck had observed in Frederic an uneasiness, a
+watchfulness, that none of the others seemed to exhibit. He had the
+appearance of alertly listening, listening, for what? Fleck’s first
+thought was that he might have overheard the little cry that Jane had
+inadvertently given, but he quickly dismissed this theory. If Frederic
+had heard that sound it would have alarmed him, and the look in his
+eyes now was one of expectancy rather than of fear.
+
+Jane, too, was puzzled and distressed. With trembling hands she
+clutched at the sill of the window for support as she heard Frederic
+assent to old Otto’s plans for him. Her estimate of his character made
+it seem incredible that he would willingly lend himself to this work of
+wholesale murder, yet she could no longer doubt the evidence of her own
+ears. With overwhelming force it came to her that this man who so
+readily agreed to such bloody, dastardly work as this, must undoubtedly
+be also the murderer of that K-19 whose body had been found just around
+the corner from her home. Bitterly she reproached herself that she had
+allowed herself to care for him. Shamedly she confessed to herself that
+she still loved him—even now.
+
+“Your great work accomplished,” Otto continued, “remember your orders.
+Forty miles due east of Sandy Hook there will be lying two great
+submarines, waiting to take you off—not U-boats, but two of our
+powerful, wonderful new X-boats, big enough to destroy any of their
+little cruisers that are patrolling the coast, fast enough to escape
+any of their torpedo boats. How important the war office judges your
+work you may realize from this—it is the first mission on which these
+new X-boats have been dispatched. They are out there now. We have had a
+wireless from them. They are waiting to convey six heroes back to the
+Fatherland, where the highest honors will be bestowed on them at the
+hands of our Emperor himself. Herr Captain and Comrades—”
+
+He stopped abruptly, and there came into his face a pained look of
+surprise, of terror.
+
+_“Was is dass?_” he cried in alarm.
+
+One of Fleck’s men in hiding out there in the shadow of the building
+had been seized by an irresistible desire to sneeze.
+
+The terrifying suspicion that there had been some uninvited spectator
+outside, listening to their plotting, swept over the whole room. The
+whole company, hearing the sound that had alarmed old Hoff, arose as
+one man and stood tensed, stupefied with fear, gazing white-faced in
+the direction from which the sound had come.
+
+Fleck, rudely brushing Jane aside, dropped back from the window and
+blew a sharp blast with a whistle. At the sound his men came running up
+with their rifles ready.
+
+Inside, the man called Hans, seizing an electric torch, dashed to the
+door, and pulling it wide, rushed forth, his torch lighting the way
+before him. Before he even had time to see the men gathering there and
+cry an alarm, a blow from the butt of Carter’s revolver stretched him
+senseless on the stoop.
+
+“In the name of the United States I command you to surrender,” cried
+Fleck, springing boldly into the open doorway, revolver in hand; “the
+house is surrounded.”
+
+Instantly all within the room was confusion. Some of those nearest the
+door, seeing behind Fleck the protruding muzzles of the guns, promptly
+threw up their hands in token of surrender. Others bolted madly for the
+front door, only to find their egress there blocked by the rifles in
+the hands of the guard that Fleck had had the foresight to station
+there.
+
+Old Otto, the pallor of fear on his face giving away to an expression
+of demoniac rage, drew a revolver and aimed it straight at Fleck. Jane,
+who unbidden had followed the raiders as they entered and now was
+standing wide-eyed in the doorway watching the spectacle, was the only
+one to see that just as old Otto pulled the trigger his nephew, whether
+by accident or design, she could not tell, jostled his arm, sending the
+bullet wide of its mark.
+
+“Come on, men,” cried Fleck, advancing boldly into the room.
+
+Eight of the Germans, piteously bleating “Kamerad” stood against the
+wall near the door, their hands stretched high above their heads.
+
+“Guard these men, Dean,” cried Fleck, as with Carter close at his side
+he dashed into the fray.
+
+One man already lay senseless outside, eight had surrendered. Four had
+fled to the front of the house. That left only the two Hoffs and one
+other man against five of them. It was Fleck’s intention to try to
+overpower the trio before the four who had fled returned to aid them.
+Jane, amazed at her own coolness, stood beside Dean, her revolver out,
+helping him guard the prisoners.
+
+Frederic all the while had been standing by his uncle’s side, strangely
+enough appearing to take little interest or part in the battle. Old
+Otto, though, despite his years, was fighting with vigor enough to
+require both the work of Fleck and Carter to subdue him. Vainly he
+struggled to wrench himself free from their grasp and use his revolver
+again. Fleck’s strength pulling loose his fingers from the weapon was
+too much for him. As he felt himself being disarmed, in a frenzy he
+tore himself loose from both of them and seizing a chair, swung it with
+all his strength against the hanging lamp above the table that supplied
+the only light in the room.
+
+In an instant the room was in darkness. The four from the front,
+rushing back to aid their comrades in answer to old Otto’s cries, found
+themselves unable to distinguish friend from foe. Fleck’s men dared not
+use their weapons in the darkness. Back and forth through the room the
+opposing forces struggled, the air thick with cries and muttered oaths,
+the sound of blows making strange medley with the rapid shuffling of
+feet.
+
+Jane, remembering the electric torch that had been carried by the man
+Carter had struck down, felt her way to the door and retrieved it from
+his senseless fingers. Returning, she flashed it about the room,
+endeavoring to assist Fleck by its light. As she let the beam fall on
+Frederic she heard a muttered curse at her side and turned to see
+Thomas Dean aiming his revolver directly at the younger Hoff. With a
+quick movement she thrust up his arm, and the bullet buried itself in
+the wall above his head.
+
+“What are you trying to do,” snapped Dean; “help that damned spy to
+escape?”
+
+“He wasn’t trying to escape,” she angrily retorted. “Look—quick—mind
+your prisoners.”
+
+He turned just in time to see the Germans behind him lowering their
+arms. In another second they would have been on his back. At the sight
+of his brandished revolver, their arms were quickly raised again.
+
+Meanwhile Fleck’s men, guided by Jane’s light, were laying about them
+with their rifles clubbed. The plotters were at a disadvantage in not
+realizing how few there were in the attacking party. Fleck’s
+announcement that the house was surrounded had both deceived and
+disheartened them. When three of their number had been knocked
+senseless to the floor the others surrendered and joined the group that
+stood with hands up.
+
+To Fleck’s amazement it was Frederic Hoff who led in the surrender.
+
+“Watch that young Hoff,” he whispered to Carter. “I can’t understand
+his giving up so easily. It may be only a ruse on his part.”
+
+“Perhaps he’s afraid the girl will be hurt,” whispered Carter, but
+Fleck was not there to hear him, having dashed forward to where old
+Otto was still fighting desperately.
+
+Somehow in the melee the old man had again got hold of a revolver, and
+just as Fleck seized him he fired again. The bullet, aimed at Fleck,
+left him unharmed, but found a mark in Thomas Dean, who with a little
+gurgling cry, fell forward at Jane’s feet. Carter turned at once to
+guard the prisoners, as Fleck, with a cry of rage, felled old Hoff to
+the floor, harmless for the present at least.
+
+Sending one of his men to the other rooms in search of lamps Fleck soon
+had all the prisoners safely shackled, both hand and foot, none of them
+offering any resistance. Investigation showed that old Hoff in falling
+had struck his head in such a way that his neck was broken, killing him
+instantly. The three who had been clubbed were not seriously injured,
+and as soon as they revived were shackled as the others had been.
+
+Jane, seeing Dean collapse, had turned to aid him and for some time had
+been bending over him, trying to revive him. He had opened his eyes,
+looked up into her face and had tried to say something, and then had
+collapsed, dying right before her eyes.
+
+“Take the Hoffs’ car outside,” Fleck directed some of his men, “and
+bring up our two cars at once. Carter and I’ll guard the prisoners
+until you get back. There’s a county jail only a few miles away. The
+sooner we get them there the better it will be. It won’t take any court
+long to settle their fate. They got Dean, didn’t they?”
+
+“Yes,” said Jane, getting up unsteadily from the floor, “I think he’s
+dead.”
+
+Fleck bent to examine the body of his aide, feeling for the pulse.
+
+“Too bad,” he murmured. “That last bullet of old Hoff’s got him, but he
+died in a good cause.”
+
+Jane, brushing away the tears that came welling unbidden into her eyes,
+turned now for the first time since his surrender to look at Frederic.
+
+She had expected as she looked at him lying there shackled on the floor
+to read in his expression humiliation at his plight, grief at the
+failure of his effort to aid Germany, possibly reproach for her in
+having aided in entrapping him. To her amazement there was nothing of
+this in his face.
+
+As he lay there on the floor he was observing her with a tender look of
+love, and in his eyes what was still more puzzling was an unmistakable
+expression of triumph and happiness.
+
+
+
+
+CHAPTER XVII
+SOMETHING UNEXPECTED
+
+
+Bewildered by the rapidity with which such a succession of terrifying
+events had taken place, Jane sank dazedly into a chair, trying her best
+to collect her thoughts, as she looked about on the recent scene of
+battle. All of the German plotters had been overcome and captured.
+There, dead on the floor, lay the arch conspirator, old Otto Hoff, his
+clammy face still twisted into a savage expression of malignant,
+defiant hate.
+
+And there, too, a martyr to the country’s cause, lay Thomas Dean. A sob
+of pity rose in Jane’s throat as she thought of him, and the great
+tears rolled unchecked down her cheeks. He was so young, so brave, so
+fine. Why must Death have come to him when there was yet so much he
+might have done? With his talent and education, with his wonderful
+spirit of self-sacrifice, he might have gone far and high. Regretfully,
+she recalled that he had loved her, and with kind pity in her heart she
+reproached herself for not having been able to return to this fine,
+clean, American youth the affection she had inspired in him.
+
+Thomas Dean, she told herself, was the type of man she should have
+loved, a man of her own people, with her own ideals, a man of her
+country, her flag, and yet—
+
+There on the floor, not a dozen feet away from her, shameful circlets
+of steel girdling both his wrists and his ankles, lay the one man for
+whom she knew now she cared the most in all the world, the man she had
+just betrayed into Chief Fleck’s hands.
+
+Bitterly she reproached herself for not having tried to induce Frederic
+to escape. In mental anguish she pictured him—the man she
+loved—standing in the prisoner’s dock in some courtroom, branded as a
+spy, as a leader of spies, charged with an attempt to slaughter the
+inhabitants—the women and children—of a sleeping, unprotected city.
+With growing horror it came to her that in all probability she herself
+would be called on to testify against him. It might even be her
+evidence that would result in his being led out before a firing squad
+and put to an ignominious death.
+
+She dared not even look in his direction now. What must he be thinking
+about her? He had known that she loved him. In despair and doubt she
+wondered whether he could understand that she, too, had been influenced
+to perform her soul-wracking task by a sense of honor, of duty to her
+country equally as potent as that which had impelled him to participate
+in this terrible plan to destroy New York. Why had she not informed him
+that his plans were known to the United States Government’s agents?
+Surely she could have convinced him that his was a hopeless mission.
+The plot would have been successfully thwarted, and he would not be
+lying there in shackles, but, even though forced to flee, who knew,
+perhaps some day after peace had come, he might have been able to
+return for her. A great sob rose from her heart, but she stifled it
+back. She would be brave and true. She must be glad for those of her
+people that had been saved.
+
+But her parents! What would they say? Her father and mother soon now
+must learn that she had been deceiving them day after day. How
+horrified and amazed they would be to learn that the chauffeur she had
+brought into the household was in reality a government detective, and
+that she, their daughter, had been a witness of his tragic death. What
+would they think when they learned about her part in this gruesome
+drama that had just been enacted? They, serene in their trust in her,
+supposing she was at the home of one of her girl friends, were
+peacefully asleep in their quiet apartment. How horror-stricken her
+mother would be if she could have seen her daughter at this moment,
+alone at midnight in a mountain shack, one girl among a band of strange
+men—and two men stretched dead on the floor.
+
+And Frederic! Always her perturbed imaginings led back to Frederic, to
+the terrible fate that lay in store for him, to the awfulness of war
+that had put between them an impassable gulf of blood and guilt and
+treachery that, in spite of their love for each other, kept them at
+cross purposes and made them enemies. Why, she vaguely wondered, must
+governments disagree and start wars and make men hate and kill each
+other? What was it all for?
+
+In the midst of her mental wanderings she became conscious that Fleck
+was speaking to Carter.
+
+“I’ll stay here with Miss Strong and the prisoners,” he was saying.
+“While we are waiting for the men to return with the cars, you’d better
+make a search of the house.”
+
+“Why not wait until daylight for that?” suggested Carter.
+
+“It is not safe,” the chief objected. “To-night is the time to do it. A
+plot important enough to have the especial attention of the war office
+in Berlin must have many important persons involved in it. Somebody
+with money in New York, some influential German sympathizer, must have
+helped old Hoff set up these aeroplanes here and equip his shop. Some
+chemical plant supplied the material for those bombs. It must have
+taken hundreds of thousands of dollars to carry the plan to completion.
+Men rich enough and powerful enough to have put through this plot are
+powerful enough to be still dangerous. The minute word reaches the city
+that the plan has miscarried there will be some one up here posthaste
+to destroy or remove any damaging evidence we may have overlooked. Now
+is the time to do our searching.”
+
+“You’re right, Chief,” Carter admitted. “It would not surprise me if
+there is not a wireless plant here. I’ll soon find out.”
+
+“Let me help,” cried Jane.
+
+Her nerves were suffering from a sharp reaction. All through the
+excitement of the attack she had remained calm and collected, but now
+she felt that if she remained another minute in the same room with the
+two bodies, if she stayed near that row of shackled prisoners, if she
+should chance to catch Frederic’s eye, she either would burst into
+hysterical weeping or would collapse entirely. If only there was some
+activity in which she could engage it might serve to divert the current
+of maddening thoughts that kept overwhelming her. With something to do
+she might regain her self-control.
+
+“Please let me help Mr. Carter,” she begged.
+
+“Certainly,” said Fleck, “go ahead. You have earned the right to do
+anything you wish to-night.”
+
+Guided by the light of an electric torch Carter and she quickly made
+their way to the upper floor. In most of the rooms they found only
+cheap cots with blankets, evidently the sleeping quarters of the
+workmen, but in one of the rooms was a desk, and from it a ladder led
+to an unfinished attic. Boldly climbing the ladder and flashing their
+torch about they quickly located a high-powered wireless outfit. It was
+mounted on a sliding shelf by which it could be quickly concealed in a
+secret cupboard, but evidently the plotters had felt so secure from
+intrusion in their retreat that they had been in the habit of leaving
+it exposed.
+
+“I thought we’d find it,” said Carter exultantly. “It’s an ideal
+location, up here in the mountains. I’d better smash it at once.”
+
+“Wait,” warned Jane, thoughtfully, “they spoke of having received a
+wireless message from those dreadful X-boats lying there off the coast.
+If we could only find their code-book, perhaps—”
+
+“Right,” cried Carter, catching her idea at once.
+
+Together they descended to the room below and began ransacking the
+desk, Jane holding the light while Carter examined the papers they
+found.
+
+“Their system sometimes is bad for them,” said Carter. “Here’s a ledger
+with the names of all the men employed here and the amounts paid to
+each. And look,” he went on excitedly, “look what the stupid fools have
+done with their German methodicalness—here are entries showing all the
+supplies they obtained, from whom they got them and what they cost.
+There’s evidence here for a hundred convictions. We’ll just take that
+book along.”
+
+There was one small drawer in the desk that was locked. Ruthlessly
+Carter smashed the woodwork and pried it open. Its only contents was a
+small parcel, a folded paper in a parchment envelope. Hastily he drew
+forth the paper and studied it intently.
+
+“It’s a code,” he cried, “a naval code, evidently the very one they
+used to communicate with those boats. I’ll wager the Washington people
+even haven’t a copy of it. That’s a great find. Come on, we’ve got
+enough for one night.”
+
+“Do any of the men in our party understand wireless?” asked Jane as
+they descended.
+
+“Sure,” said Carter, “Sills does. He used to be the radio man on a
+battleship.”
+
+“Couldn’t he be left on watch here?” suggested Jane, “and try to signal
+those X-boats and keep them waiting until to-morrow night? Maybe by
+that time our—”
+
+“I get you,” cried Carter; “that’s a good idea. Explain it to the
+Chief.”
+
+As Jane unfolded her plan, suggesting the possibility of sending
+American cruisers out to search for the X-boats after Sills had lured
+them by false messages to the surface, Fleck heartily approved of it.
+
+“I’ll leave Sills here with one other man to guard the house,” he said.
+“We’ll have to let poor Dean’s body remain here for the present, too.
+We’ll need all the room in the cars for the prisoners.”
+
+There was still much to be done. While some of the men were
+unceremoniously carrying out the shackled prisoners and piling them in
+the cars, others, under Carter’s direction, crippled the three
+“wonder-workers” and dismantled them, carrying their dangerous cargo of
+bombs into the woods and concealing them.
+
+None of the prisoners, since the moment the shackles had been put on,
+had uttered a word. Sullen silence held all of them unprotestingly in
+its grip. Even Frederic kept his peace, though from time to time his
+glance roved about, seeking Jane, and always in his eyes was a strange
+look, not of defeat, nor of shame, but rather of exultant triumph. Jane
+still dared not trust herself to look in his direction, but Fleck and
+Carter, too, observed curiously the expression in his eyes. Was he,
+they wondered, rejoicing over Dean’s untimely end? Did he, with true
+Prussian arrogance, in spite of the failure of his plot, still dare to
+hope that with Dean out of the way, he might escape punishment and yet
+win Jane Strong? Even as they picked him up, the last of the prisoners,
+and put him in the rear seat of the chief’s car, his eyes still sought
+for Jane.
+
+It was long after midnight before the strange cavalcade left the
+mountain shack. Fleck’s car led the way, with the chief himself at the
+wheel, and Jane beside him. Crowded on the rear seat were Frederic and
+two other prisoners, and standing in the tonneau, facing them with his
+revolver drawn in case they should make an attempt to escape in spite
+of their shackles, was Fleck’s chauffeur. Carter was at the wheel of
+the second car with five prisoners and a man on guard, and the
+arrangement in the third car was the same. Six men and a girl to
+transport thirteen prisoners! Inwardly Fleck was congratulating himself
+on his forethought in having provided shackles enough to go around, for
+otherwise he surely would have had a perilous job on his hands.
+
+As they rode down the mountain lane, Jane rejoiced at the darkness that
+hid her face, both from Fleck and from Frederic on the seat behind. Now
+that there was no activity to distract her maddening thoughts once more
+paced in turmoil through her brain. She loved this man, and she was
+leading him to disgrace and death. She hated and despised him. He was a
+treacherous, dangerous enemy of her country whom she had helped to
+trap, and she was glad, glad, glad. No, no! She wasn’t glad. She loved
+him. He had given her that sealed packet and had charged her to keep it
+for him. He couldn’t be all bad. Why must she love him? Her mind told
+her he was a criminal, an enemy, a spy, a murderer, yet her wilful
+heart insisted that she loved him. How strange life was! She and
+Frederic loved each other. Why could they not marry and be happy? Why
+was War? Why must nations fight? Why must people hate each other? Was
+the whole world mad? Was she going mad herself?
+
+Slowly and carefully, Fleck, with his lights on full, had steered the
+automobile down the narrow roadway through the woods. He had just
+turned the car safely into the main road, and stopped to look back to
+see how closely the other cars were following. Suddenly from the
+wayside a dozen men in uniform sprang up, the glint of their guns made
+visible by the automobile lights.
+
+“Halt,” cried a voice of authority.
+
+The one glimpse he had caught of the uniform had conveyed to Fleck the
+welcome fact that the party surrounding him were Americans—cavalry
+troopers.
+
+“Chief Fleck,” he announced, by way of identification. “Who are you?”
+
+A tall figure in officer’s clothes sprang up on the running board and
+peered into Fleck’s face.
+
+“Thank God, Chief,” he said, “that it’s you.”
+
+“Colonel Brook-White,” cried Fleck in amazement, recognizing the voice
+as that of one of the officers in charge of the British Government’s
+Intelligence Service in America. “What are you doing here?”
+
+“Trying to round up some bally German spies,” explained Brook-White.
+
+“I’ve beaten you to it,” cried Fleck, with a note of triumph in his
+tone. “I’ve got them all here in shackles.”
+
+“Good,” said Brook-White delightedly. “I was fearful I’d be too late.
+There was delay in getting a message to me. As soon as I had it, I
+tried to reach you and couldn’t. I dared not wait but dashed up here in
+my car. I knew there were some American troopers camped near here, and
+I persuaded the commander to detail some of his men to help me. Did you
+really capture the Hoff chap, old Otto?”
+
+“He’s better than captured,” said Fleck. “He’s lying dead back there in
+the house.”
+
+“Good,” cried Brook-White. “He was infernally dangerous according to my
+advices—but Captain Seymour—where is he? Wasn’t he working with you?”
+
+“Captain Seymour?” cried Fleck in astonishment. “I never heard of him.
+Who’s Captain Seymour?”
+
+“He’s one of my chaps,” explained Brook-White. “Wasn’t it he who
+steered you up here?”
+
+“I should say not,” said Fleck emphatically.
+
+“Good Lord,” cried the British colonel excitedly. “You don’t suppose
+those bloody Boches got him at the last—after all he’s been through? I
+hope he’s safe.”
+
+“Don’t worry, Colonel Brook-White,” came the calm voice of Frederic
+Hoff from the rear seat. “Chief Fleck has me here safe in shackles with
+the other prisoners.”
+
+“God,” cried Fleck, in astonished perplexity. “Is Frederic Hoff a
+Britisher—one of your men?”
+
+“Rather,” said Brook-White. “Chief Fleck, may I present Captain Sir
+Frederic Seymour, of the Royal Kentish Dragoons.”
+
+But Fleck was too busy just then to heed the introduction, or to pay
+attention to the muttered “_Donnerwetters_” of indignation that burst
+from the lips of his other prisoners.
+
+Jane Strong had fainted dead away against his shoulder.
+
+
+
+
+CHAPTER XVIII
+WHAT THE PACKET CONTAINED
+
+
+“But,” said Jane, “I can’t understand it yet. How did you, a British
+officer, happen to be living with old Otto Hoff? How did you ever get
+him to trust you with his terrible secrets?”
+
+Captain Seymour chortled gleefully. Now that he was arrayed in proper
+British clothes, once more comfortable in the uniform of his regiment
+and had his monocle in place and was with Jane again, everything looked
+radiantly different. Even his speech no longer retained its
+international quality but now was tinctured with London mannerisms.
+
+“Oh, I say,” he replied, “that was a ripping joke on the bally
+Dutchmen.”
+
+Jane eyed him uncertainly. He seemed almost like a stranger to her in
+this unfamiliar guise, though for hours she had been eagerly looking
+forward to his coming.
+
+The exciting developments of the night before still were to her very
+puzzling. She recalled Frederic’s identification of himself, and after
+that all was blank. When she had come to she had found herself in a
+motor being rapidly driven toward New York in the early dawn, with
+Carter as her escort. He had not been inclined to be at all
+communicative.
+
+“Let the Captain tell you the story himself,” said Carter. “He knows
+all the details.”
+
+“But when can I see him?” questioned Jane. “When,” she hesitated,
+remembering the shameful bonds that had held him, “when will he be
+free?”
+
+“He’s as free this minute as we are,” Carter explained. “It didn’t take
+the Chief long to get the bracelets off, after Colonel Brook-White had
+identified him. There’s a lot for the Captain to do still, but rest
+assured, he’ll waste no time getting back to the city to see you.”
+
+“I hope not,” sighed the girl.
+
+She was too weary, too weak from the revulsion of feeling that had come
+on learning that her lover instead of being a dastardly spy was a
+wonderful hero, to make even a pretense at maidenly modesty. She wanted
+to see Frederic too much to care what any one thought.
+
+Slipping into her home fortunately without arousing any of her family,
+she had gone to bed with the intention of getting a rest of an hour or
+two. Sleep, she was sure, would be impossible, for she felt far too
+excited and upset. Yet she had not realized how utterly exhausted she
+was. Hardly had her head touched the pillow before she was lost to
+everything, and it was long after noon when a maid aroused her to
+announce that Captain Seymour had ’phoned that he would call at three.
+
+As she dressed to receive him, she was wondering how she should greet
+him. Blushingly she recalled the impassioned kiss he had pressed on her
+lips—why it was only yesterday. It had seemed ages and ages ago, so
+much had intervened. Mingled with a shyness that arose from her vivid
+memories was also a shade of indignation. Why had he not told her? Did
+he not trust her? She resolved to punish him for not taking her into
+his confidence by an air of coldness toward him. Certainly he deserved
+it.
+
+Yet, when he arrived, so full of animation did he appear to be, that
+the lofty manner in which she greeted him apparently went unnoticed. He
+met her with a warm handclasp and anxious inquiries about how she felt
+after all the exciting events. Too filled with eagerness to know all
+the details of his adventures she had found it difficult to maintain
+her pose, and soon was seated cosily beside him, asking him question
+after question, all the while furtively studying him in his proper
+rôle. As Frederic Hoff she had thought him wonderfully handsome and
+masterful. As Captain Sir Frederic Seymour, in his regimental finery,
+he was simply irresistible.
+
+“A joke?” she repeated. “Do explain, I’m dying to know all about it.”
+
+“It wasn’t half as difficult a job as one might imagine, you know. Our
+censor chaps at home have got to be quite expert at reading letters,
+invisible ink and all that sort of thing. Hoff for months had been
+sending cipher messages to the war office in Berlin. He kept urging
+them to act on his all-wonderful plan for blowing up New York. They
+decided finally to try it and notified old Otto they were sending over
+an officer to supervise the job.”
+
+“What became of him? The officer they sent over?”
+
+“Our people picked him off a Scandinavian boat and locked him up. They
+took his papers and turned them over to me. Clever, wasn’t it?”
+
+“And you took his name and his papers and came here in his place? Oh,
+that was a brave, brave thing to do.”
+
+“I wouldn’t say that,” said Seymour modestly. “I fancy I look a bit
+like the chap, and I speak the language perfectly.”
+
+“But it was such a terrible risk to take,” cried Jane with a shudder.
+“Suppose they’d found you out?”
+
+“No danger of that,” laughed Frederic. “Old Otto never had seen the
+chap who was coming. His real nephew, Frederic Hoff, whose American
+birth certificate was used, died years ago. Besides I had the German
+officer’s papers and knew just what his instructions were. The worst of
+it was when old Otto insisted every night on toasting the Kaiser, and
+when he kept trying to get me mixed up in his dirty schemes. I had to
+go through with the former once in a while, but on the latter, I—how do
+you Americans say it—just stalled along. My orders were to land him
+only on the big thing—his wonder-workers.”
+
+“But how did you explain to him that British uniform?”
+
+“Now that was really an idea. The old fellow was getting a bit cross
+and suspicious with me because he thought I wasn’t doing enough while
+they were getting his ‘wonder-workers’ ready. At one time he was so
+distrustful of me that he had me followed.”
+
+“Oh, yes, I know,” said Jane quickly. With a thrill she remembered the
+scene she had witnessed from her window the night K-19, her predecessor
+on Chief Fleck’s staff, had been murdered. In her relief at discovering
+that Frederic was no German spy, she had forgotten that for weeks and
+weeks she had all but believed him guilty of murder. Now, something
+told her, surely and confidently, that he could explain it all.
+
+“I saw you from my window one night before I met you,” she went on. “A
+man was following you, and you chased him around the corner.”
+
+“I remember that,” he said; “the poor chap was found dead the next
+morning. Old Otto killed him. The man had been following me, and I had
+imagined that he was one of old Otto’s spies and knocked him down. I
+couldn’t find anything on him to indicate who he was, so just as he was
+beginning to revive I left him and came on home. It seems old Otto had
+been watching him trail me. He followed along and shot the man. He
+gleefully told me about it the next day, the hound. I ought to have
+given him over to the police, but that would have upset our plans.”
+
+“I see,” said Jane; “what about Lieutenant Kramer? Was he working with
+old Mr. Hoff?”
+
+“That’s the funny part of it. Here in this country you’ve got so many
+kinds of secret agents they’re always trampling on each others’ toes.
+There’s your treasury agents, and your Department of Justice agents,
+and your army intelligence men and your naval intelligence men—nine
+different sets of investigators you’ve got, counting the volunteers, so
+some one told me, and each lot trying to make a record for itself and
+not taking the others into its confidence. Rather stupid I call it.”
+
+“I should say so,” agreed Jane.
+
+“Here was I watching old Hoff for our government, and Kramer watching
+me for your navy and Fleck watching both of us. It was a funny jumble.”
+
+“But about that uniform?” Jane persisted.
+
+“When the old man got to ragging me a bit, I felt I must do something
+to convince him I was all right. I suggested trying to get a British
+uniform and maybe learning thereby some secrets. It delighted him
+hugely. Of course I just went down to Colonel Brook-White and got my
+own uniform, and that was all there was to that.”
+
+“It puzzled Mr. Carter, though, how you got it in and out of the house.
+He used to open every bundle that came for Mr. Hoff.”
+
+Sir Frederic laughed delightedly.
+
+“I had a messenger who used to bring it back and forth in a big lady’s
+hat-box. It always was addressed to you, my dear, but the boy had
+instructions to deliver it to me.”
+
+“Humph,” snapped Jane with mock indignation. “And when did you first
+find out that I was helping Chief Fleck watch you?”
+
+“I suspected it from the start. Kramer told me how you’d become
+acquainted with him. Then when I heard you ’phoning Carter about the
+bookstore I knew for certain.”
+
+“Oh, that’s one thing now I wanted to ask about—those messages Hoff
+left in the bookstore. Who were they for?”
+
+“Instructions to a German advertising agency on how to word some
+advertisements that contained a code.”
+
+“Oh, those Dento advertisements?”
+
+“You knew about them?” cried Seymour in astonishment.
+
+“Of course,” said Jane proudly. “I was the one who deciphered them; but
+what did that girl do with those messages? Carter had a theory that she
+slipped them under a dachshund’s collar.”
+
+“That theory’s just like Carter,” laughed Frederic—“regular detective
+stuff. I never heard of any dachshund’s being used. The girl used to
+slip them into a letter box in her apartment-house hallway. Two minutes
+later a man would get them and carry them to their destination.”
+
+“The traitors in our navy—the men who signalled old Otto and Lena Kraus
+about the transports—who were they? They are the scoundrels I’d like to
+see arrested and shot.”
+
+“Never worry. They’ll all meet their deserts. I can’t tell even you who
+they are, but I’ve given your Chief Fleck a list of them. They will be
+quickly rounded up now. What else can I tell you?”
+
+“There’s this,” said Jane, the color rising to her cheeks as she drew
+forth from its hiding place in the bosom of her gown the packet he had
+entrusted to her the morning before, its seals still intact.
+
+“What?” he cried in delight. “You kept it safe? You did not open it
+even when you saw me arrested, when you must have been convinced that I
+was a spy? Girl, dear girl”—his voice became a caress, and the light of
+love flamed up in his eyes, “you did trust me then, in spite of
+everything.”
+
+“I had promised you, and I kept my promise,” faltered Jane, striving
+for words to explain, though she had been unable to explain her actions
+even to herself. “I think my heart trusted you all the time, even
+though my head and eyes made me believe you were what you pretended to
+be. Even when things looked blackest my heart persisted that you were
+true.”
+
+“God bless your heart for that,” cried Frederic, as he took the little
+packet from her hands and began breaking the seals. “Yesterday morning,
+when old Otto’s plans were ready, I foresaw the danger of the trip
+ahead of me. I realized I might never come back alive. If they
+discovered who I was a second too soon it would mean my death. I dared
+not, for my country’s sake, tell even you what I was doing. My honor
+was at stake. I dared not drop the slightest hint nor write a single
+line. The only thing I’d kept about me in the apartment that wasn’t
+filthy German stuff was what’s in here.”
+
+Slowly he was unwrapping something rolled in tissue paper, as Jane,
+eager-eyed, looked wonderingly on.
+
+“But,” he went on, “I couldn’t go away from you without leaving some
+token, some clue. If it happened that I never came back, I wanted you
+to know—”
+
+He stopped abruptly.
+
+“To know what?” questioned the girl breathlessly.
+
+“To know that I loved you, darling, better than all else save honor,”
+he said, taking her into his arms. “See the token I left behind for
+you. It’s an old, old family ring with the Seymour crest. You’ll wear
+it, girl of mine, won’t you, wear it always.”
+
+Unhesitatingly Jane Strong thrust forth the third finger on her left
+hand, and instinctively her lips turned upward toward his.
+
+And no matter what might have happened just then in the apartment next
+door, neither of them would have known anything about it.
+
+
+THE END
+
+
+
+
+*** END OF THE PROJECT GUTENBERG EBOOK THE APARTMENT NEXT DOOR ***
+
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+<head>
+<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
+<meta http-equiv="Content-Style-Type" content="text/css" />
+<title>The Project Gutenberg eBook of The Apartment Next Door, by William Johnston</title>
+
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+<div style='text-align:center; font-size:1.2em; font-weight:bold'>The Project Gutenberg eBook of The Apartment Next Door, by William Andrew Johnston</div>
+<div style='display:block; margin:1em 0'>
+This eBook is for the use of anyone anywhere in the United States and
+most other parts of the world at no cost and with almost no restrictions
+whatsoever. You may copy it, give it away or re-use it under the terms
+of the Project Gutenberg License included with this eBook or online
+at <a href="https://www.gutenberg.org">www.gutenberg.org</a>. If you
+are not located in the United States, you will have to check the laws of the
+country where you are located before using this eBook.
+</div>
+<div style='display:block; margin-top:1em; margin-bottom:1em; margin-left:2em; text-indent:-2em'>Title: The Apartment Next Door</div>
+<div style='display:block; margin-top:1em; margin-bottom:1em; margin-left:2em; text-indent:-2em'>Author: William Andrew Johnston</div>
+<div style='display:block; margin:1em 0'>Release Date: February 23, 2004 [eBook #11240]<br />
+[Most recently updated: November 28, 2022]</div>
+<div style='display:block; margin:1em 0'>Language: English</div>
+<div style='display:block; margin:1em 0'>Character set encoding: UTF-8</div>
+<div style='display:block; margin-left:2em; text-indent:-2em'>Produced by: Juliet Sutherland, Charlie Kirschner and the Online Distributed Proofreading Team</div>
+<div style='margin-top:2em; margin-bottom:4em'>*** START OF THE PROJECT GUTENBERG EBOOK THE APARTMENT NEXT DOOR ***</div>
+
+<h1>The Apartment Next Door</h1>
+
+<h2 class="no-break">by William Johnston</h2>
+
+<h4>AUTHOR OF</h4>
+<h4>THE HOUSE OF WHISPERS, LIMPY, ETC.</h4>
+
+<h5>ILUSTRATIONS BY</h5>
+<h4>ARTHUR WILLIAM BROWN</h4>
+
+<p class="center">
+<img src="images/001.jpg" alt="" />
+</p>
+
+<h4>1919</h4>
+
+<hr />
+
+<h4>TO THAT MARVELLOUS SCHEHERAZADE</h4>
+
+<h3>CAROLYN WELLS HOUGHTON</h3>
+
+<h4>THE AUTHOR, IN ENVIOUS ADMIRATION,</h4>
+
+<h4>DEDICATES THIS VOLUME</h4>
+
+<hr />
+
+<div class="chapter">
+
+<h2>CONTENTS</h2>
+
+<table summary="" style="">
+
+<tr>
+<td> <a href="#CHAPTER_I">CHAPTER I. THE FACE OF HATE</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_II">CHAPTER II. THE ADDRESS ON THE CARD</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_III">CHAPTER III. “MR. FLECK”</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_IV">CHAPTER IV. THE CLUE IN THE BOOK</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_V">CHAPTER V. ON THE TRAIL</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_VI">CHAPTER VI. THE MISSING MESSAGE</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_VII">CHAPTER VII. THE WOMAN ON THE ROOF</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_VIII">CHAPTER VIII. THE LISTENING EAR</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_IX">CHAPTER IX. THE PURSUIT</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_X">CHAPTER X. CARTER’S DISCOVERY</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_XI">CHAPTER XI. JANE’S ADVENTURE</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_XII">CHAPTER XII. PUZZLES AND PLANS</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_XIII">CHAPTER XIII. THE SEALED PACKET</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_XIV">CHAPTER XIV. THE MOUNTAIN’S SECRET</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_XV">CHAPTER XV. THE HOUSE IN THE WOODS</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_XVI">CHAPTER XVI. THE ATTACK ON THE HOUSE</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_XVII">CHAPTER XVII. SOMETHING UNEXPECTED</a></td>
+</tr>
+
+<tr>
+<td> <a href="#CHAPTER_XVIII">CHAPTER XVIII. WHAT THE PACKET CONTAINED</a></td>
+</tr>
+
+</table>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2>LIST OF ILLUSTRATIONS</h2>
+
+<hr />
+
+<table summary="" style="">
+
+<tr>
+<td> <a href="#illus01">She could not bring herself to tell him, the man she loved, the thing she knew he was.</a></td>
+</tr>
+
+<tr>
+<td> <a href="#illus02"> More than likely, she alone in all the world—knew who the murderer was.</a></td>
+</tr>
+
+<tr>
+<td> <a href="#illus03">Had he been standing there listening? How much had he heard?</a></td>
+</tr>
+
+<tr>
+<td> <a href="#illus04">“Thank God,” he cried. “Jane, dear, tell me you are not hurt!”</a></td>
+</tr>
+
+</table>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2>THE APARTMENT NEXT DOOR</h2>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+
+<h2><a name="CHAPTER_I"></a>CHAPTER I<br/>
+THE FACE OF HATE</h2>
+
+<p>
+It was three o’clock in the morning. Along a deserted pavement of Riverside
+Drive strode briskly a young man whose square-set shoulders and erect poise
+suggested a military training. His coat, thrown carelessly open to the cold
+night wind, displayed an expanse of white indicative of evening dress. As he
+walked his heels clicked sharply on the concrete with the forceful firm tread
+of the type which does things quickly and decisively. The intense stillness of
+the early morning hours carried the sound in little staccato beats that could
+be heard blocks away. A few yards behind him, moving furtively and noiselessly,
+almost as if he had been shod with rubber, crept another figure, that of a
+stocky, broad-shouldered man, who despite his bulk and weight moved silently
+and swiftly through the night, a soft brown hat drawn low over his eyes as if
+he desired to avoid recognition.
+</p>
+
+<p>
+All at once the man ahead paused suddenly and stood looking out over the river.
+Between the Drive and the distance-dimmed lights of the Jersey shore there rose
+like great silhouettes the grim figures of several huge steel-clad battleships,
+their fighting-tops lost in the shadows of the opposite hills. Beside them,
+obscure, with no lights visible, lay the great transports that in a few hours,
+or in a few days—who knew—they would be convoying with their precious cargo of
+fighting men across the war-perilled Atlantic.
+</p>
+
+<p>
+It was on the forward deck of one of these great battleships that the eyes of
+the man ahead were riveted. His shadower, evidently much concerned in his
+actions, crept slowly and stealthily forward, approaching nearer and still
+nearer without being observed.
+</p>
+
+<p>
+A dim light became visible on the warship’s deck and then vanished. Still the
+man stood there watching, a puzzled, anxious look coming into his face. Quickly
+the light reappeared—two flashes, a pause, two flashes, a pause, and then a
+single flash. It was such a light as might have been made by a pocket torch, a
+feeble ray barely strong enough to carry to the adjacent shore, a light that if
+it had been flashed from some sheltered nook by the boat davits might not even
+have attracted the attention of the officer on the bridge nor of the ship’s
+watchmen. Manifestly it was a signal intended for the eyes of some one on
+shore.
+</p>
+
+<p>
+A muttered imprecation escaped the lips of the watcher on the Drive. He stood
+there, straining his eyes toward the ship as if expecting a following signal,
+then he turned and gazed aloft at the windows of the apartment houses lining
+the driveway to see if some answering signal flashed back.
+</p>
+
+<p>
+And in the shadow of the buildings, hardly ten feet away but half sheltered by
+a doorway, stood his sinister pursuer, motionless but alert.
+</p>
+
+<p>
+For perhaps a quarter of an hour they held their positions. At last the man who
+was being followed shrugged his shoulders impatiently and set off again down
+the Drive, from time to time turning his head to watch the spot from which the
+signal had been flashed. Behind him, as doggedly as ever and now a little
+closer, crept the man with the hat over his eyes.
+</p>
+
+<p>
+Regardless of the lateness of the hour, at a third-floor window of one of the
+great apartment houses lining the Drive sat a young girl in her nightrobe, with
+her two great black braids flung forward over her shoulders, about which she
+had placed for warmth’s sake a quilted negligee. Jane Strong was far too
+excited to sleep. An hour before she had come in from a wonderful party. The
+music still was playing mad tunes in her ears. The excitement, the coffee, the
+spirited tilts at arms with her many dancing partners had set her brain on
+fire. Sleep seemed impossible as yet.
+</p>
+
+<p>
+Looking out at the river—a favorite occupation of hers—the sight of the
+warships looming up through the darkness reminded her once more that nearly all
+of the men with whom she had been dancing had been in uniform, bringing into
+prominence in the jumble of ideas in her over-stimulated brain, almost as a new
+discovery, the fact that her country was really engaged in war, that the men,
+the very men whom she knew best, were most of them fighting, or soon going to
+fight in a foreign land. Suddenly she found herself vaguely wishing that there
+was something she might do, something for the war, something to help. Would it
+not be splendid, she thought, to go to France as a Red Cross nurse, to be over
+there in the middle of things, where something exciting was forever going on.
+Life—the only life she knew about, existence as the petted daughter of
+well-to-do parents in a big city—had, ever since the war had begun, seemed
+strangely flat and uninteresting. Parties, to be sure, were fun but hardly any
+one was giving parties this year. The Stantons had entertained only because
+their lieutenant son was going abroad soon, and they wished him to have a
+pleasant memory to carry with him. Most of the interesting men she knew already
+were gone, and now Jack Stanton was going. How she wished she could find some
+way of getting into the war herself.
+</p>
+
+<p>
+The sound of approaching footsteps caught her ear. Wondering who was abroad at
+that hour of the night she pushed up the window softly and looked out. In the
+distance she saw a man approaching, striding briskly toward her. As she stood
+idly watching him and wondering about him, suddenly she caught her breath. She
+had sighted the other figure behind, the man creeping stealthily after him.
+Nearer and nearer they came. In tense expectation she waited, sensing some
+unusual development. They had reached her block now. Almost directly under her
+window the man in advance paused to light a cigarette. His shadow paused, too,
+but some incautious movement on his part must have betrayed him.
+</p>
+
+<p>
+Match in hand, the man in advance stood stock-still, his whole figure taut,
+poised, alert, in an attitude of listening. All at once he wheeled about,
+discovering the man close behind him. He sprang at once for his pursuer. The
+latter took to his heels, dashing around the corner, the man whom he had been
+following now hot at his heels.
+</p>
+
+<p>
+All trembling with nervous excitement Jane leaned out the window to listen and
+watch. She could hear the running feet of both men just around the corner. What
+was happening? The running feet came to an abrupt stop. There was a
+half-smothered cry, a sharp thud, like a body striking the pavement, and then
+came silence. Puzzled, vaguely alarmed, a hundred questions came pouring into
+her brain and lingered there disturbingly. Why had one of these men been
+shadowing the other? Why had the pursuer suddenly become the pursued? Why had
+the running footsteps come to such an abrupt stop? What was the noise she had
+heard? What was happening around the corner? Her fears rapidly growing, she was
+on the point of arousing her family. But what excuse should she give? What
+could she tell them? After all she had merely seen two men run up the side
+street. More than likely they would only laugh at her, and she did not like
+being laughed at. Besides, Dad was always cross when suddenly awakened.
+Undecided what to do she stood at the window, peering into the night.
+</p>
+
+<p>
+Five minutes, ten minutes she stood there in tremulous perplexity. A sense of
+impending tragedy seemed to have laid hold of her. A black horror seized her
+and held her at the window. Something terrible, something tragic, she was sure
+must have happened. Mustering up her strength and trying to calm her fears she
+was about to put down the window when she heard footsteps once more
+approaching. Straining her ears to listen she discovered the sound was that of
+the steps of a man—one man—approaching from around the corner. As she watched
+he turned into the Drive and came on toward her. She shrank back a little,
+fearful of being seen even though her room was in darkness. It was the first
+man. She recognized him at once by his top-hat and his evening clothes. He was
+walking even more briskly than before, almost running. There was no sign
+anywhere of the shorter thick-set man who had been following him. Something in
+the appearance of the figure in the street below struck her all at once as
+vaguely familiar. She wondered if it could be any one she knew.
+</p>
+
+<p>
+Presently he came directly opposite the light on the other side of the Drive so
+that it shone for an instant full on his face. Jane looked and shuddered. Never
+in all her life had she seen any man’s countenance so convulsed, not with pain,
+but with a soul-terrifying expression of hate, of virulent, murderous hate.
+</p>
+
+<p>
+Distorted though the man’s face was with such bitter frightfulness, she
+recognized him, not as any one she knew, but merely as one of the tenants in
+the same apartment building.
+</p>
+
+<p>
+“It’s one of the people next door,” she said to herself and in verification of
+her identification, as he approached the building, the young man cast a swift
+glance over his shoulder, and then, as if satisfied that he was unobserved,
+dashed hurriedly in at the entrance.
+</p>
+
+<p>
+Jane, more than ever wrought up with fear and dread of she knew not what,
+sprang hastily into bed and drew the covers about her shoulders. As yet she did
+not lie down but shiveringly waited. Presently she heard the elevator stop. She
+heard the key opening the door of the next apartment. In a few minutes she
+heard the man moving about his bedroom, separated from her own room by a mere
+six inches of plaster and paper, or whatever it is that apartment-house walls
+are made of.
+</p>
+
+<p>
+What could have happened? She was certain that something terrible had occurred
+in which the young man next door had played a tragic, perhaps even a criminal
+part. She tried in vain to conjecture what circumstance could have been
+responsible for the look of hatred she had seen on his face. She wondered what
+had been the fate of the man who had been following him. Had they quarrelled
+and fought? What could have been the subject of their quarrel?
+</p>
+
+<p>
+She tried to summarize what she knew about the people next door, and was amazed
+to discover how little she had to draw upon. As in most New York apartment
+houses so in Jane’s home all the tenants were utter strangers to each other,
+one family not even knowing the names of any of the others. Occasionally, to be
+sure, one rather resentfully rode up or down in the elevator with some of the
+other tenants but always without noticing or speaking to them. Jane’s family
+had been living in the building for five years, and of the twenty other
+families they knew the names of only two, having learned them by accident
+rather than intention. About the people next door Jane now discovered that she
+really knew nothing at all. There was a man with a gray beard who never took
+off his hat in the elevator, and there was the handsome young chap whom she had
+just seen entering. But what their names were, or their business, or how long
+they had lived there, or whether they were father and son, what servants they
+kept, or whether either or both of them was married—these were questions she
+could have answered as readily as if they had been living in Dallas, Texas, or
+Seattle, Washington, as in the next apartment. Quickly she found that she
+really knew nothing at all about them except—she could not recall that any one
+had told her or how she had got the impression—she was almost certain they were
+some sort of foreigners.
+</p>
+
+<p>
+Just when it was that her troubled thoughts were succeeded by even more
+troubled dreams she was not aware, but it was noon the next day when she was
+awakened by the maid bringing in her breakfast tray.
+</p>
+
+<p>
+“Terrible, Miss Jane, wasn’t it,” said the servant, “about that suicide last
+night, almost under our noses, you might say.”
+</p>
+
+<p>
+“Suicide!” cried the girl, at once wide-awake and interested “What suicide?”
+</p>
+
+<p>
+“A man was found dead in the side street right by our building with a revolver
+in his hand.”
+</p>
+
+<p>
+“What sort of a looking man was he?”
+</p>
+
+<p>
+“I didn’t see him,” said the maid, almost regretfully. “He was taken away
+before I was up. Cook tells me it was the milkman found him and notified the
+police.”
+</p>
+
+<p>
+“Who was he?”
+</p>
+
+<p>
+“Nobody round here knows a thing about him. He shot himself through the heart
+and us sleeping here an’ not knowing anything at all about it.”
+</p>
+
+<p>
+“But didn’t any one know who he was?”
+</p>
+
+<p>
+“Never a soul. The superintendents from all the buildings round took a look at
+the body, but none of them knew him. It wasn’t anybody that lived around here.
+There’s a piece in the afternoon papers about it.”
+</p>
+
+<p>
+“Get me a paper at once,” directed the girl.
+</p>
+
+<p>
+Eagerly she read the paragraph the maid pointed out. It really told very
+little. The body of a plainly dressed man had been found on the sidewalk. There
+was a revolver in his hand with one cartridge discharged, and the bullet had
+penetrated his heart. He had been a short stalky man and had worn a brown soft
+hat. There was nothing about his clothing to identify him, even the marks where
+his suit had been purchased having been removed. He had not been identified.
+The police and the coroner were satisfied that it was a case of suicide.
+</p>
+
+<p>
+Suicide!
+</p>
+
+<p>
+Jane, reading and rereading the paragraph, recalled the unusual occurrence she
+had witnessed the night before. Vividly there stood out before her the strange
+panorama she had seen, the tall young man in evening clothes, and the short
+stalky man with the soft hat who had followed him. The two of them had run
+around the corner. Only one of them had come back. Unforgettably there was
+imprinted in her memory the satanic expression on the young man’s face as he
+had hastened into the house. No wonder he had cast such an anxious glance
+behind him as he entered.
+</p>
+
+<p>
+Suicide!
+</p>
+
+<p>
+Jane was certain that it was no suicide. She remembered the curious thud she
+had heard from around the corner, like a body falling to the pavement. She
+recalled that it must have been at least ten minutes before the other man
+reappeared, time enough to have placed the revolver in the dead man’s hand,
+time enough even to have removed all possible means of identification from the
+man’s clothing.
+</p>
+
+<div class="fig" style="width:100%;">
+<a name="illus02"></a>
+<a href="images/illus02.jpg">
+<img src="images/illus02.jpg" width="461" height="650" alt="Illustration:" /></a>
+<p class="caption">More than likely, she alone in all the world—knew who the murderer was.</p>
+</div>
+
+<p>
+It was not suicide, Jane felt certain. It was murder! Slowly but oppressingly,
+overwhelmingly, it dawned on her not only that in all probability a murder had
+been committed, but also that she—more than likely, she alone in all the
+world—knew who the murderer was, who it must have been—the young man next door.
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_II"></a>CHAPTER II<br/>
+THE ADDRESS ON THE CARD</h2>
+
+<p>
+Impatiently Jane looked at her wrist watch. It lacked an hour of the time when
+she was to meet her mother at the Ritz for tea. Her nerves still all ajangle
+from excitement and worry over the morning’s tragedy, and her own accidental
+secret knowledge of certain aspects of the case had made it wholly impossible
+for her to do anything that day with even simulated interest.
+</p>
+
+<p>
+She had been debating with herself whether or not to confide to her mother the
+story of the tragic tableau of which she had been an accidental witness, when
+Mrs. Strong had dashed into her bedroom to give her a hurried peck on the cheek
+and to say that she was off to luncheon and the matin&eacute;e with Mrs.
+Starrett.
+</p>
+
+<p>
+“You’re not looking well to-day, dear,” her mother had said. “Stay in bed and
+rest and join us for tea if you like.”
+</p>
+
+<p>
+Before she had opportunity to tell what she had seen, her mother was gone, but
+Jane had found it impossible to obey her well-meant injunction. She rose and
+dressed, her mind busy all the while with the problem of what her duty was. As
+she donned her clothing she paused from time to time to listen for sounds from
+the next apartment.
+</p>
+
+<p>
+What was her neighbor doing now? Had he read of the discovery of the man’s body
+in the street? Perhaps he had fled already? Not a sound was to be heard there.
+He did not look in the least like what Jane imagined a murderer would, yet
+certainly the circumstances pointed all too plainly to his guilt. She had seen
+two men dash around the corner, one in pursuit of the other. One of them had
+come back alone. Not long afterward a body—the body of the other man—had been
+found with a bullet in his heart. It must have been a murder.
+</p>
+
+<p>
+What ought she to do about it? Was it her duty to tell her mother and Dad about
+what she had seen? Mother, she knew, would be horrified and would caution her
+to say nothing to any one, but Dad was different. He had strict ideas about
+right and justice. He would insist on hearing every word she had to tell. More
+than likely he would decide that it was her duty to give the information to the
+authorities. Her face blanched at the thought. She could not do that. She
+pictured to herself the notoriety that would necessarily ensue. She saw herself
+being hounded by reporters, she imagined her picture in the papers, she heard
+herself branded as “the witness in that murder case,” she depicted herself
+being questioned by detectives and badgered by lawyers.
+</p>
+
+<p>
+No, she decided, it would be best for her never to tell a soul, not even her
+parents. In persistent silence lay her safest course. After all she had not
+witnessed the commission of the crime. She was not even sure that the man found
+dead had been one of the two she had watched from her window. If she saw the
+body she would not be able to identify it. She was not even certain in her own
+mind that the man next door had done the shooting, however suspicious his
+actions may have appeared to her. Besides, he did not look in the least like a
+murderer. He was too well-dressed.
+</p>
+
+<p>
+In an effort to put the whole thing out of her mind she tried to read, but was
+unable to keep her thoughts from wandering. She sat down at the piano, but
+music failed to interest or soothe her. She mussed over some unanswered notes
+in her desk but could not summon up enough concentration of mind to answer
+them. Restless and fidgety, unable to keep her thoughts from the unusual
+occurrences that had disturbed her ordinarily too peaceful life, she decided to
+take a walk until it was time to keep her appointment. Something—force of habit
+probably—led her to the shopping district. With still half an hour to kill, she
+went into a little specialty shop to examine some knitting bags displayed in
+the window.
+</p>
+
+<p>
+“Why don’t you knit as all the other girls are doing?” was her father’s
+constant suggestion every time she asserted her desire to be doing something in
+the war.
+</p>
+
+<p>
+“There’s no thrill in knitting,” she would answer. “Fix it, Dad, so that I can
+go to France as a Red Cross nurse or as an ambulance driver, won’t you? I want
+some excitement.”
+</p>
+
+<p>
+Always he had refused to consent to her going, insisting that France in wartime
+was no place for an untrained girl.
+</p>
+
+<p>
+“If I can’t go myself, I certainly am not going to send any knitting,” she
+would spiritedly answer, but several times recently the sight of such charming
+looking knitting bags had tempted her into almost breaking her resolution.
+</p>
+
+<p>
+Inside the shop she found nothing that appealed to her, and contented herself
+with buying some toilet articles. As she made her purchases she noticed, almost
+subconsciously, a man standing near, talking with one of the shopgirls—a
+middle-aged man with a dark mustache.
+</p>
+
+<p>
+“The address, please,” said the girl, who had been waiting on her.
+</p>
+
+<p>
+“Miss Strong,” she answered, giving the number of the apartment house on
+Riverside Drive.
+</p>
+
+<p>
+She recalled afterward that as she mentioned the number the man standing there
+had turned and looked sharply at her, but she thought nothing of it. Her
+father’s name was well known and he had many acquaintances in the city. More
+than likely, she supposed, this man was some friend of her father who had
+recognized the name.
+</p>
+
+<p>
+She lingered a few moments at some of the other counters, aimlessly inspecting
+their offerings, and at last, with ten minutes left to reach the Ritz, emerged
+from the store. She was amazed to see the man who had been inside now standing
+near the entrance, and something within warned her that he had been waiting to
+speak to her. As she attempted to pass him quickly, he stepped in front of her,
+blocking her path, but raising his hat deferentially.
+</p>
+
+<p>
+“I beg your pardon, Miss Strong,” he said, “may I have a word with you?”
+</p>
+
+<p>
+Compelled to halt, she looked at him both appraisingly and resentfully. There
+was nothing offensive nor flirtatious in his manner, and he seemed far too
+respectably dressed to be a beggar. He was almost old enough to be her father,
+and besides there was about him an indefinable air of authority that commanded
+her attention. She decided that, unusual as his request appeared, she would
+hear what he had to say.
+</p>
+
+<p>
+“What is it?” she asked, trying to assume an air of hauteur but without being
+able wholly to mask her curiosity.
+</p>
+
+<p>
+“You are an American, aren’t you?” he asked abruptly.
+</p>
+
+<p>
+“Of course.”
+</p>
+
+<p>
+“A good American?”
+</p>
+
+<p>
+“I hope so.” She decided now that he must be one of the members of some Red
+Cross fund “drive,” or perhaps an overenthusiastic salesman for government
+bonds. “But I don’t quite understand what it is that you wish.”
+</p>
+
+<p>
+“I can’t explain,” said her questioner, “but if you really are a good American
+and you’d like to do your country a great service—an important service—go at
+once to the address on this card.”
+</p>
+
+<p>
+She took the slip of white pasteboard handed her. On it was written in pencil
+“Room 708.” The building was a skyscraper down-town.
+</p>
+
+<p>
+“What is it?” she asked half indignantly, “a new scheme to sell bonds?”
+</p>
+
+<p>
+“No, no, Miss Strong,” he cried, “it is nothing like that. It is a great
+opportunity to do an important service for America.”
+</p>
+
+<p>
+“How did you know my name?”
+</p>
+
+<p>
+“I heard you give it to the clerk just now.”
+</p>
+
+<p>
+“And why,” she inquired with what she intended to be withering sarcasm, “have I
+been selected so suddenly for this important work?”
+</p>
+
+<p>
+“I heard the address you gave, that’s why,” he answered. “That’s what makes it
+so important that you should go to that number at once. Ask for Mr. Fleck.”
+</p>
+
+<p>
+“I can’t go,” she temporized. “I am on my way now to meet my mother at the
+Ritz.”
+</p>
+
+<p>
+“Go to-morrow, then,” he insisted. “I’ll see Mr. Fleck meanwhile and tell him
+about you.”
+</p>
+
+<p>
+Puzzled at the man’s unusual and wholly preposterous request, yet in spite of
+herself impressed by his evident sincerity, Jane turned the card nervously in
+her hand and discovered some small characters on the back; “K-15” they read.
+</p>
+
+<p>
+“What do those figures mean?” she asked.
+</p>
+
+<p>
+“I can’t tell you that. Mr. Fleck will explain everything. Promise me you will
+go to see him.”
+</p>
+
+<p>
+“Who are you?”
+</p>
+
+<p>
+“I can’t tell you that, yet.”
+</p>
+
+<p>
+“Who, then, is Mr. Fleck?”
+</p>
+
+<p>
+“He will explain that to you.”
+</p>
+
+<p>
+“What has my address to do with it? I can’t understand yet why you make this
+preposterous request of me.”
+</p>
+
+<p>
+“I tell you I can’t explain it to you, not yet,” the man replied, “but it’s
+because you live where you do you must go to see Mr. Fleck. It’s about a matter
+of the highest importance to your government. It is more important than life
+and death.”
+</p>
+
+<p>
+His last words startled her. They brought to her mind afresh the mysterious
+occurrence she had witnessed the night before and the equally mysterious death
+near her home. Had this man’s odd request any connection, she wondered, with
+what had happened there? The lure of the unknown, the opportunity for
+adventure, called to her, though prudence bade her be cautious.
+</p>
+
+<p>
+“I’ll ask my mother,” she temporized.
+</p>
+
+<p>
+“Don’t,” cried the man. “You must keep your visit to Mr. Fleck a secret from
+everybody. You mustn’t breathe a word about it even to your father and mother.
+Take my word for it, Miss Strong, that what I am asking you to do is right.
+I’ve two daughters of my own. The thing I’m urging you to do I’d be proud and
+honored to have either of them do if they could. There is no one else in the
+world but you that can do this particular thing. A word to a single living soul
+and you’ll end your usefulness. You must not even tell any one you have talked
+with me. See Mr. Fleck. He’ll explain everything to you. Promise me you’ll see
+him.”
+</p>
+
+<p>
+“I promise,” Jane found herself saying, even against her better judgment, won
+over by the man’s insistence.
+</p>
+
+<p>
+“Good. I knew you would,” said her mysterious questioner, turning on his heel
+and vanishing speedily as if afraid to give her an opportunity of
+reconsidering.
+</p>
+
+<p>
+Puzzled beyond measure not only at the man’s strange conduct but even more at
+her own compliance with his request, Jane made her way slowly and thoughtfully
+to the Ritz, where she found her mother and Mrs. Starrett had already arrived.
+</p>
+
+<p>
+As they sipped their tea the two elder women chatted complacently about the
+matin&eacute;e, about their acquaintances, about other women in the tea-room
+and the gowns they had on, about bridge hands—the usual small talk of afternoon
+tea.
+</p>
+
+<p>
+To Jane, oppressed with her two secrets, all at once their conversation seemed
+the dreariest piffle. Great things were happening everywhere in the world,
+nations at war, men fighting and dying in the trenches of horror for the sake
+of an ideal, kings were being overthrown, dynasties tottering, boundaries of
+nations vanishing. Women, she realized, too, more than ever in history, were
+taking an active and important part in world affairs. In the lands of battle
+they were nursing the wounded, driving ambulances, helping to rehabilitate
+wrecked villages. In the lands where peace still reigned they were voting,
+speech-making, holding jobs, running offices, many of them were uniting to aid
+in movements for civic improvement, for better children, for the improvement of
+the whole human race.
+</p>
+
+<p>
+And here they were—here <i>she</i> was, idling uselessly at the Ritz as she had
+done yesterday, last week, last month—forever, it seemed to her. The vague
+protest that for some time had been growing within her against the
+senselessness and futility of her manner of existence crystallized itself now
+into a determination no longer to submit to it. Courageously she was resolving
+that she would take the first opportunity to escape from this boresome routine
+of pleasure-seeking. She was wondering if the request that had been so
+unexpectedly made of her would prove to be her way out from her prison of
+desuetude.
+</p>
+
+<p>
+The talk of the two women with her drifted aimlessly on. Seldom was she
+included in it, save when her mother, nodding to some one she knew, would turn
+to say:
+</p>
+
+<p>
+“Daughter, there is Mrs. Jones-Lloyd.”
+</p>
+
+<p>
+What did she care about Mrs. Jones-Lloyd? What did she care about any of the
+people about them, aimless, pleasure-hunting drifters like themselves. Left to
+her own devices for mental activity her thoughts kept recurring to the
+surprising adventure she had had a few minutes before. Thoughtfully she
+pondered over the mysterious message that had been given to her. The man had
+said that it was a wonderful opportunity for her to do her country a great
+service. She wondered why he had been so secretive about it. She decided that
+she would investigate further and made up her mind to carry out his
+instructions. What harm could befall her in visiting an office building in the
+business district? At least it would be something to do, something new,
+something different, something surely exciting and, perhaps, something useful.
+</p>
+
+<p>
+It would be better, she decided, for the present at least, to keep her
+intentions entirely to herself. Any hint of her plans to her mother would
+surely result in permission being refused. The man certainly had seemed
+sincere, honest, and perfectly respectable, even if he was not of the sort one
+would ask to dinner. She made up her mind to go down-town to the address given
+the very first thing to-morrow morning. If anything should happen to her, she
+felt that she could always reach her father. His office was in the next block.
+</p>
+
+<p>
+The problem of making the mysterious journey without her mother’s knowledge
+bothered her not at all. As in the case of most apartment-house families, she
+and her mother really saw very little of each other, especially since she had
+become a “young lady.” Mrs. Strong went constantly to lectures, to luncheons,
+to bridge parties, to matin&eacute;es with her own particular friends. Jane’s
+engagements were with another set entirely, school friends most of them, whose
+parents and hers hardly knew each other. Both she and her mother habitually
+breakfasted in bed, generally at different hours, and seldom lunched together.
+At dinner, when Mr. Strong was present, there were no intimacies between mother
+and daughter. The only times they really saw each other for protracted periods
+were when they happened to go shopping, or go to the dressmaker’s together, and
+then the subject always uppermost in the minds of both of them was the
+all-important and absorbing topic of clothes. Occasionally, Jane poured at one
+of her mother’s more formal functions, but for the most part the time of each
+was taken up in a mad, senseless hunt for amusement.
+</p>
+
+<p>
+Suddenly every thought was driven from Jane’s head. Her face went white, and
+with difficulty she managed to suppress an alarmed cry.
+</p>
+
+<p>
+“What is it, daughter?” asked her mother, noting her perturbation. “Are you
+feeling ill?”
+</p>
+
+<p>
+“A touch of neuralgia,” she managed to answer.
+</p>
+
+<p>
+“Too many late hours,” warned Mrs. Starrett reprovingly.
+</p>
+
+<p>
+“I’m afraid so,” said Mrs. Strong. “As soon as I’ve paid my check we’ll go.”
+</p>
+
+<p>
+“I’m perfectly all right now,” said Jane, controlling herself with effort,
+though her face was still white.
+</p>
+
+<p>
+The danger that she had feared had passed for the present at least. Glancing
+toward the entrance a moment before she had been terrified to see entering the
+black-mustached man who had accosted her a few moments before. Her one thought
+now had been that he had followed her here, and in a panic she was wondering
+how she should make explanations if he came up to their table and spoke. To her
+great relief he gave no intimation of having seen her, but settled himself into
+a chair near the door where he was half hidden from her by a great palm.
+Furtively she watched him, trying to divine his intention in having followed
+her there. Respectable enough though he was in appearance and garb, he did not
+seem in the least like the sort of man likely to be found at tea-time in an
+exclusive hotel. As she studied him she soon saw that his attention seemed to
+be riveted on some one sitting at the other side of the room. Wonderingly she
+let her eyes follow his, and once more it was with difficulty that she
+suppressed an excited gasp.
+</p>
+
+<p>
+There, across the room, calmly sipping some coffee, was the handsome young man
+from the next apartment—the man whom she had felt sure, or at least almost
+sure, was a murderer, about whom she had been wondering all day long, picturing
+him as a hunted criminal fleeing from the law. Chatting interestedly with him
+was another man, a young man in the uniform of a lieutenant in the navy.
+</p>
+
+<p>
+What did it all mean? Why was the black-mustached man watching them so
+intently? Her eyes turned back to him. He was still sitting there, leaning
+forward a little, his brows in a pucker of concentration, his eyes still fixed
+on the pair opposite. It looked almost as if he was trying to read their lips
+and tell what they were talking about.
+</p>
+
+<p>
+Jane thrilled with excitement. The black-mustached man, she decided, must be a
+detective. She recalled that he had said to her it was because she lived at the
+address she did that she was available for the mission for which he wanted her.
+Did he, she wondered, know about the mysterious death in the street outside
+their apartment house? Was that the reason he was spying on her neighbor? But
+what could be his motive in seeking to involve her in the matter?
+</p>
+
+<p>
+Unable to find satisfactory answers to her questions she gave herself up
+interestedly to studying the faces of the two young men across the room.
+Neither of them, she decided, could be much more than thirty. The face that
+only a few hours before she had seen utterly convulsed with bitter hate, now
+placid and smiling, was really an attractive one, not in the least like a
+murderer’s. Frank, alert blue eyes looked out from under an intellectual
+forehead. A small military mustache lent emphasis to a clean-shaven, forceful
+jaw. His flaxen hair was neatly trimmed. His linen and clothing were
+immaculate, and the hand that curved around his cup had long, tapering,
+well-manicured fingers. The cut of his clothing, his manners, everything about
+him seemed American, yet there was an indefinable something in his appearance
+that suggested foreign birth or parentage, probably either Swedish or German.
+The man with him was smaller and slighter. Despite the air of importance his
+uniform gave him, it was palpable that he was the less forceful of the two, his
+handsome face, it seemed to Jane, betraying weakness of character and a
+fondness for the good things of life.
+</p>
+
+<p>
+“Come, daughter,” said Mrs. Strong, rising, “we must be going.”
+</p>
+
+<p>
+So intent was Jane on her study of the two men that her mother had to speak
+twice to her.
+</p>
+
+<p>
+“Yes, mother,” she answered obediently, rising hastily as the hint of annoyance
+in her mother’s repeated remark brought her to a realization of having been
+addressed.
+</p>
+
+<p>
+Letting her mother and Mrs. Starrett precede her in the doorway she paused to
+look back at the scene that had interested her so strongly. What <i>could</i>
+it mean? What was going on? How was she involved in it?
+</p>
+
+<p>
+Her glance moved quickly from the watcher to the watched. The blond young man
+caught her eye. Amazedly, it seemed to her, he stopped right in the middle of
+what he was saying and sat there, his gaze fixed full on her. She let her eyes
+fall, abashed, and turned to hasten after her mother, but not so quickly did
+she turn but that she observed he had hastily seized his cup and appeared to be
+drinking to her, not so much impudently as admiringly.
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_III"></a>CHAPTER III<br/>
+“MR. FLECK”</h2>
+
+<p>
+Twice after the elevator had deposited her on the floor Jane had approached the
+door of Room 708, and twice she had walked timorously past it to the end of the
+hall, trying to muster up courage to enter. A visit to a man’s office in the
+business district was a novelty for her. On the few previous excursions of the
+sort she had made she always had been accompanied by one of her parents. She
+found herself wishing now that she had taken her father into her confidence and
+had asked him to go with her. Making shopping her excuse she had come down-town
+with Mr. Strong but had gotten off at Astor Place, and waited over for another
+train.
+</p>
+
+<p>
+In her hand she held the card given to her by the black-mustached man the
+afternoon before. As she studied it now her curiosity came to the rescue of her
+fast-oozing courage. She must find out what it all meant, whatever the risk or
+peril that might confront her. Boldly she returned to Room 708 and opened the
+door. An office boy seated at a desk looked up inquiringly.
+</p>
+
+<p>
+“Is Mr. Fleck in?” she inquired timidly.
+</p>
+
+<p>
+“Who wishes to see him?”
+</p>
+
+<p>
+“Just say there’s a lady wishes to speak to him,” she faltered, hesitating to
+give her name.
+</p>
+
+<p>
+“Are you Miss Strong?” asked the boy abruptly, “because if you are, he’s
+expecting you.”
+</p>
+
+<p>
+She nodded, and the boy, jumping up, escorted her into an inner room. As she
+entered nervously an alert-looking man, with graying hair and mustache, rose
+courteously to greet her. In the quick glance she gave at her surroundings she
+was conscious only of the great mahogany desk at which he sat and behind it
+some filing cabinets and a huge safe, the outer doors of which stood open.
+</p>
+
+<p>
+“Sit down, won’t you, Miss Strong,” he said, placing a chair for her.
+</p>
+
+<p>
+His manner and his cultured tone, everything about him, reassured her at once.
+They conveyed to her that he was what she would have termed “a gentleman,” and
+with a little sigh of relief she seated herself.
+</p>
+
+<p>
+“I’m afraid,” said Mr. Fleck, smiling, “that Carter’s method of approaching you
+must have alarmed you.”
+</p>
+
+<p>
+“Carter—Oh, the black-mustached man.”
+</p>
+
+<p>
+“Yes, that describes him. You see, he did not wish to act definitely without
+consulting his chief, yet the unexpected opportunity seemed far too vital not
+to be utilized. He did not explain, did he, what it was we wanted of you?”
+</p>
+
+<p>
+“Indeed he didn’t,” said Jane, now wholly herself. “He was most mysterious
+about it.”
+</p>
+
+<p>
+Mr. Fleck smiled amusedly.
+</p>
+
+<p>
+“Carter has been an agent so long that being mysterious is second nature to
+him.”
+</p>
+
+<p>
+“An agent—I don’t understand.”
+</p>
+
+<p>
+“A Department agent,” explained Mr. Fleck, adding, “engaged in secret service
+work for the government.”
+</p>
+
+<p>
+“Oh!”
+</p>
+
+<p>
+Jane’s exclamation was not so much of surprise as of delighted realization, and
+the satisfaction expressed in her face was by no means lost on Mr. Fleck.
+</p>
+
+<p>
+“Would you object,” he asked, moving his chair a little closer to hers, “if,
+before I explain why you are here, I ask you a few questions—very personal
+questions?”
+</p>
+
+<p>
+“Certainly not,” said Jane.
+</p>
+
+<p>
+“You are American-born, of course?”
+</p>
+
+<p>
+“Oh, yes.”
+</p>
+
+<p>
+“And your parents?”
+</p>
+
+<p>
+“American for ten or twelve generations.”
+</p>
+
+<p>
+“How long have you lived in that apartment house on Riverside Drive?”
+</p>
+
+<p>
+“For about five years.”
+</p>
+
+<p>
+“Do you know any of the other tenants in the house?”
+</p>
+
+<p>
+“No—that is, none personally.”
+</p>
+
+<p>
+“Is your time fully occupied?”
+</p>
+
+<p>
+“No, indeed it isn’t, I’ve nothing to do at all, nothing except to try to amuse
+myself.”
+</p>
+
+<p>
+“Good,” said Mr. Fleck. “Now would you be willing to help in some secret work
+for the United States Government, some work of the very highest importance?”
+</p>
+
+<p>
+“Would I?” cried Jane, her eyes shining. “Gladly! Just try me.”
+</p>
+
+<p>
+“Don’t answer too quickly,” warned Mr. Fleck. “Remember, it will be real work,
+serious work, not always pleasant, sometimes possibly a little perilous.
+Remember, too, it must be done with absolute secrecy. You must not let even
+your parents know that you are working with us. You must pledge yourself to
+breathe no word of what you are doing or are asked to do to a living soul.
+Everything that we may tell you is to be buried forever from everybody. No one
+is to be trusted. The minute one other person knows your secret it will no
+longer be a secret. Can we depend upon you?”
+</p>
+
+<p>
+“You may absolutely depend on me,” said Jane slowly and soberly. “I give you my
+word. I have been eager for ever so long to do something to help, to really
+help. My father is doing all he can to aid the government. He’s on the Shipping
+Board.”
+</p>
+
+<p>
+Mr. Fleck nodded. Evidently he was aware of it already.
+</p>
+
+<p>
+“My brother, my only brother,” Jane continued, with a little catch in her
+throat, “is Over There—somewhere Over There—fighting for his government. If
+there is anything I can do to help the country he is fighting for, the country
+he may die for, I pledge you I will do it gladly with my heart, my soul, my
+body—everything.”
+</p>
+
+<p>
+“Thank you,” said Mr. Fleck softly, taking her hand. “I felt sure you were that
+sort of a girl. Now listen.” He moved his chair still closer to hers, and his
+voice became almost a whisper. “In the apartment next to you there live two
+men,—Otto Hoff and his nephew, Fred. They have an old German servant, but we
+can leave her out of it for the present. The old man is a lace importer.
+Apparently they are both above suspicion, yet—”
+</p>
+
+<p>
+He stopped abruptly.
+</p>
+
+<p>
+“You think they are spies—spies for Germany,” questioned Jane excitedly.
+“They’re Germans, of course?”
+</p>
+
+<p>
+“Otto Hoff is German-born, but he has been here for twenty years. Several years
+ago he took out papers and became an American citizen.”
+</p>
+
+<p>
+“And the young man?”
+</p>
+
+<p>
+Jane’s tone was vibrant with interest. It must be the man she had seen from her
+window whom they suspected most.
+</p>
+
+<p>
+“He professes to be American-born.”
+</p>
+
+<p>
+“Oh,” said the girl, rather disappointedly.
+</p>
+
+<p>
+“But,” continued Mr. Fleck, “there’s something queer about it all. He arrived
+in this country only three days before we went into the war. He had a
+certificate, properly endorsed, giving his birthplace as Cincinnati. He arrived
+on a Scandinavian ship. He speaks German as well and as fluently as he speaks
+English, both without accent.”
+</p>
+
+<p>
+“Perhaps he was educated abroad,” suggested Jane, rather amazed at finding
+herself seeking to defend him.
+</p>
+
+<p>
+“He must have been,” said Fleck, “yet I find it hard to believe that Germany at
+this time is letting any young German-American come home if he’s soldier
+material—and young Hoff’s appearance certainly suggests military training.”
+</p>
+
+<p>
+“It surely does.”
+</p>
+
+<p>
+“Unless,” continued Fleck, “there was some special object in sending him here.”
+</p>
+
+<p>
+“You think,” said Jane slowly, “they sent him here—to this country—as a spy.”
+</p>
+
+<p>
+“In our business we dare not think. We cannot merely conjecture. We must
+prove,” said Mr. Fleck. “Maybe the Hoffs are O.K. I do not know. Nobody knows
+yet. Let me tell you some of the circumstances. This much we do know. Von
+Bernstorff is gone. Von Papen is gone. Scores of active German sympathizers and
+propagandists have been rounded up and interned or imprisoned, yet, in spite of
+all we have done, their work goes on. A vast secret organization, well supplied
+with funds, is constantly at work in this country, trying to cripple our
+armies, trying to destroy our munition plants, trying to corrupt our citizens,
+trying to disrupt our Congress. Every move the United States makes is watched.
+As you probably know, every day now large numbers of American troops are
+embarking in transports in the Hudson.”
+</p>
+
+<p>
+“Yes,” said Jane, “you can see them from our windows.”
+</p>
+
+<p>
+“Now then,” said Mr. Fleck, lowering his voice impressively, “here is the fact.
+Some one somewhere on Riverside Drive is keeping close and constant tab on the
+warships and transports there in the river. We have managed recently to
+intercept and decipher some code messages. These messages told not only when
+the transports sailed but how many troops were on each and how strong their
+convoy was. Where these messages originate we have not yet learned. We are
+practically certain that some one in our own navy, some black-hearted traitor
+wearing an officer’s uniform—perhaps several of them—is in communication with
+some one on shore, betraying our government’s most vital secrets.”
+</p>
+
+<p>
+“I can’t believe it,” cried Jane, “our own American officers traitors!”
+</p>
+
+<p>
+“Undoubtedly some of them are,” said Mr. Fleck regretfully. “The German
+efficiency, for years looking forward to this war, carefully built up a
+far-reaching spy system. Years ago, long before the war was thought of—or at
+least before we in this country thought of it—many secret agents of
+Wilhelmstrasse were deliberately planted here. Many of them have been residents
+here for years, masking their real occupation by engaging in business,
+utilizing their time as they waited for the war to come by gathering for
+Germany all of our trade and commercial secrets. Some of these spies have even
+become naturalized, and they and their sons pass for good American citizens. In
+some cases they have even Americanized their names. Insidiously and
+persistently they have worked their way into places, sometimes into high places
+in our chemical plants, our steel factories, yes, even into high places in our
+army and navy and into governmental positions where they can gather information
+first-hand. In no other country has it been so easy for them, because of this
+one fact: so large a proportion of Uncle Sam’s population is of German birth or
+parentage. Why here in New York City alone there are more than three-quarters
+of a million persons, either German-born themselves or born of German parents.
+Many of them, the vast majority of them, probably, are loyal to America, but
+think how the plenitude of German names makes it easy for spies to get into our
+army and navy. Besides that, they employ evil men of other nationalities as
+spies, the criminal riffraff,—Danes, Swedes, Spaniards, Italians, Swiss and
+even South Americans,—all of whom are free to go and come as they choose in
+this country.”
+</p>
+
+<p>
+“I never realized before,” said Jane, “how many Germans there were all about
+us.”
+</p>
+
+<p>
+“In an effort to locate this particular band of naval spies,” continued Mr.
+Fleck, “we have combed the apartment houses and residences along the Drive.
+Three places in particular are under suspicion. The apartment of the Hoffs is
+one of these places. They moved in there thirty days after this country went to
+war. Ordinarily, where the occupants of an apartment are under suspicion, we
+take the superintendent of the building partly into our confidence and plant
+operatives in the house, or else we hire an apartment in the same building. In
+this case neither course is practicable. The superintendent of your building is
+a German-American and we dare not trust him, and there is no vacant apartment
+that we can rent. We have been watching the Hoffs from the outside as best we
+could. Carter, who has had charge of the shadowing, accidentally happened to
+overhear you give your address. He had procured a list of the tenants and
+remembered the location of your apartment. It struck him at once that you would
+be a valuable ally if you would consent to work with us.”
+</p>
+
+<p>
+“What is it that you wish me to do?” asked Jane wonderingly. “You’ll have to
+tell me how to go about it.”
+</p>
+
+<p>
+“All a good detective needs,” said Mr. Fleck, “is, let us say, three
+things—observation, addition and common sense. You must observe everything
+closely, be able to put two and two together and use your common sense. Do you
+know the Hoffs by sight?”
+</p>
+
+<p>
+“Only by sight.”
+</p>
+
+<p>
+“They live in the next apartment on your floor, do they not?”
+</p>
+
+<p>
+“Yes. Young Mr. Hoff’s bedroom is the room next to mine.”
+</p>
+
+<p>
+“Good,” cried Mr. Fleck. “Can you hear anything from the next apartment, any
+conversations?”
+</p>
+
+<p>
+“No, only muffled sounds.”
+</p>
+
+<p>
+“The windows overlook the river and the transports, do they not?”
+</p>
+
+<p>
+“Yes, the windows of Mr. Hoff’s bedroom and the room next. Their apartment is a
+duplicate of ours.”
+</p>
+
+<p>
+Mr. Fleck sprang up and crossed to the big safe. Opening an inner drawer he
+took out a small metal disk and handed it to her. Jane looked at it curiously.
+It bore no wording save the inscription “K-19.”
+</p>
+
+<p>
+“That,” said Mr. Fleck, “is the only thing I can give you in the way of
+credentials. Keep it somewhere safely concealed about your clothing and never
+exhibit it except in case of extreme necessity. If ever you are in peril any
+police officer will recognize it at once and will promptly give you all the
+assistance possible.”
+</p>
+
+<p>
+“But,” protested the girl, “I don’t know yet what I am to do.”
+</p>
+
+<p>
+“For the present I am trusting to your resourcefulness to make opportunities to
+help us. We are watching the house closely from the outside. Carter will
+identify you to the other operatives. Once a day I will expect you to call me
+up, not from your home but from a public ’phone. Here is my number. Say ‘this
+is Miss Jones speaking,’ and I will know who it is. I can communicate with you
+by note without arousing suspicion?”
+</p>
+
+<p>
+“Oh, yes, certainly.”
+</p>
+
+<p>
+“If at any time I have to call you on the ’phone, or if any of the other
+operatives want to communicate with you the password will be ‘I am speaking for
+Miss Jones.’”
+</p>
+
+<p>
+“Isn’t that exciting—a secret password,” cried Jane enthusiastically.
+</p>
+
+<p>
+“If you can manage it without compromising yourself too seriously, I wish you
+would make the young man’s acquaintance.”
+</p>
+
+<p>
+“That will be simple,” said Jane, remembering the admiring way in which he had
+raised his cup in her direction as she left the hotel.
+</p>
+
+<p>
+“If possible find out who their visitors are in the apartment and keep your
+eyes open for any sort of signalling to the transports. If ever there is an
+opportunity to get hold of notes or mail delivered to either of them, don’t
+hesitate to steam it open and copy it.”
+</p>
+
+<p>
+“Must I?” said Jane. “That hardly seems right or fair.”
+</p>
+
+<p>
+“Of course it’s right,” cried Mr. Fleck warmly. “Think of the lives of our
+soldiers that are at stake. The devilish ingenuity of these German spies must
+be thwarted at all costs. They seem to be able to discover every detail of our
+plans. Only two days ago one of our transports was thoroughly inspected from
+stem to stern. Two hours later twenty-six hundred soldiers were put aboard her
+on their way to France. Just by accident, as they were about to sail, a
+time-bomb was discovered in the coal bunkers, a bomb that would have sent them
+all to kingdom come.”
+</p>
+
+<p>
+“How terrible!”
+</p>
+
+<p>
+“Somebody aboard is a traitor. Somebody knew when that inspection was made.
+Somebody put that bomb in place afterward. That shows you the kind of enemies
+we are fighting.”
+</p>
+
+<p>
+Jane shuddered. She was thinking of the sailing of another transport, the one
+that had carried her brother to France.
+</p>
+
+<p>
+“Anything seems right after that,” she said simply.
+</p>
+
+<p>
+“Yes,” said Mr. Fleck, “there is only one effective way to fight those spying
+devils. We must stop at nothing. They stop at nothing—not even murder—to gain
+their ends.”
+</p>
+
+<p>
+“I know that,” said Jane hastily. “I saw something myself you ought to know
+about.”
+</p>
+
+<p>
+As briefly as she could she described the scene she had witnessed in the early
+morning hours from her bedroom window, the man following the younger Hoff,
+Hoff’s discovery and pursuit of him around the corner and of his return alone.
+</p>
+
+<p>
+“And in the morning,” she concluded, “they found a man’s body in the side
+street. He had a bullet through his heart. There was a revolver in his hand.
+The newspapers said that the police and the coroner were satisfied that it was
+a suicide. I caught a glimpse of Mr. Hoff’s face when he came back from around
+that corner. It was all convulsed with hate, the most terrible expression I
+ever saw. I’m almost certain he murdered that man. I’m sure it wasn’t a
+suicide.”
+</p>
+
+<p>
+“I’m sure, too, that it was no suicide,” said Mr. Fleck gravely. “The man who
+was found there was one of my men, K-19, the man whose badge I have just given
+you. He had been detailed to shadow the Hoffs.”
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_IV"></a>CHAPTER IV<br/>
+THE CLUE IN THE BOOK</h2>
+
+<p>
+Subway passengers sitting opposite Jane Strong as she rode up-town from Mr.
+Fleck’s office, if they observed her at all—and most of them did—saw only a
+slim, good-looking young girl, dressed in a chic tailormade suit, crowned with
+a dashing Paris hat tilted at the proper angle to display best the sheen of her
+black, black hair, which after the prevailing fashion was pulled forward
+becomingly over her ears. Outwardly Jane was unchanged, but within her nerves
+were all atingle at the thought of the tremendous and fascinating
+responsibility so unexpectedly thrust upon her. Her mind, too, was aflame with
+patriotic ardor, but coupled with these new sensations was a persisting sense
+of dread, an intangible, unforgettable feeling of horror that kept cropping up
+every time her fingers touched the little metal disk in her purse.
+</p>
+
+<p>
+The man who had carried it yesterday, the other “K-19” who had undertaken to
+shadow those people next door, now lay dead with a bullet through his heart.
+Was there, she wondered, a similar peril confronting her? Would her life be in
+danger, too? Was that the reason Mr. Fleck had told her of her predecessor’s
+fate—to warn her how desperate were the men against whom she was to match her
+wits? Yet no sense of fear that projected itself into her busy brain as she
+cogitated over the task before her held her back. If anything she was rather
+thrilled at the prospect of meeting actual danger. What bothered her most was
+how she could best go about aiding Mr. Fleck and his men in their work.
+</p>
+
+<p>
+Her opportunity came far more quickly than she had anticipated. She had gotten
+off the train at the 96th Street station, purposing to walk the twenty odd
+blocks to her home as she pondered over the work that lay ahead of her. Busy
+with a horde of struggling new thoughts she proceeded along Broadway, for once
+in her life unheeding the rich gowns and feminine dainties so alluringly
+displayed in the shop windows. Suddenly she pulled herself together with a
+start. Directly ahead of her, plodding along in the same direction, was a
+figure that from behind seemed strangely familiar. She quickened her step until
+she caught up sufficiently with the man ahead to get a good glimpse of his side
+face. Nervously she caught her breath. Without any doubt it was the gray Van
+Dyke beard of old Otto Hoff.
+</p>
+
+<p>
+Where was he going? What was he doing? She paused and looked behind her,
+scanning the pavement on both sides of the street. She was half-hoping that she
+would discover Carter or some of his men shadowing their quarry, but her hope
+was vain. There was no one in the block at the moment but herself and Mr. Hoff.
+If Fleck’s men had been watching his movements, the old man certainly seemed to
+have eluded them.
+</p>
+
+<p>
+What should she do? Vividly there flashed into her mind her chief’s parting
+words.
+</p>
+
+<p>
+“Watch everything,” he had charged her. “Remember everything, report
+everything. No detail is too unimportant. If you see one of the Hoffs leave the
+house, don’t merely report to me that the old man or the young man left the
+house about three o’clock. That won’t do at all. I want to know the exact time.
+Was it six minutes after three or eleven minutes after three? I must know what
+direction he went, if he was alone, how long he was absent, where he went, what
+he did, to whom he talked. Here in my office I take your reports, Carter’s
+reports, a dozen other reports, and study them together. Things that in
+themselves seem trifling, unimportant, of no value, coupled with other
+seemingly unimportant trifles sometimes develop most important evidence.”
+</p>
+
+<p>
+To prove his point he had told her of the seemingly innocent wireless message
+that an operator, listening in, had picked up, at a time when Germans were
+still permitted to use the wireless station on Long Island for commercial
+messages to the Fatherland. On the face of it, it was the mere announcement of
+the death of a relative with a few details. But a little later the same
+operator caught the same message coming from another part of the country, with
+the details slightly different, and still later another message of the same
+purport. Evidently, by comparing the messages, the United States authorities
+had been able to work out a code.
+</p>
+
+<p>
+Remembering this, Jane decided that it was her particular duty just now to
+follow the old German and note everything he did. For several blocks she
+trailed along behind him, without arousing any suspicion on his part that he
+was being followed. He stopped once to light a cigarette, the girl behind him
+diverting suspicion by hastily turning to a shop window. Again he stopped, this
+time before the display of viands in the window of a delicatessen store.
+Thoughtfully Jane noted the number, observing, too, that the name of the
+proprietor above the door was obviously Teutonic. She was half-expecting to see
+her quarry turn in here, but he walked on to the middle of the next block,
+where he entered a stationery store.
+</p>
+
+<p>
+Hesitating but a second, to decide on a course of action, she followed him
+boldly into the store. She felt that she must ascertain just what he was doing
+in there. As she entered she saw that in the back part of the store was a
+lending library. Mr. Hoff had gone back to it and was inspecting the books
+displayed there. Unhesitatingly she, too, approached the book counter.
+</p>
+
+<p>
+“Have you ‘Limehouse Nights’?” she asked the attendant, naming the first book
+that came into her head. She had a copy of the book at home, but that seemed to
+be the only title she could think of.
+</p>
+
+<p>
+“We have several copies,” the girl in charge answered, “but I think they are
+all out. I’ll look.”
+</p>
+
+<p>
+As the clerk examined the shelves, Jane kept up a desultory talk with her,
+questioning her about various books on the shelves, all the while watching the
+old German out of the corner of her eye. His back was toward her, and he seemed
+to be examining various books on the shelves, turning over the pages as if
+unable to decide what he wanted. Curious as to what his taste in reading was,
+Jane endeavored to locate each book that he removed from its place, her idea
+being that she would later try to discover their titles. To her amazement she
+found that it was invariably the third book in each shelf that he removed and
+examined—the third from the end. It did not appear to her that he was examining
+the contents of the pages so much as searching them as if he expected to find
+something there.
+</p>
+
+<p>
+All at once, as she furtively watched from behind him, she heard him give a
+little pleased grunt and she saw him picking out from between the leaves of the
+book a fragment of paper, which he held concealed in his hand. Watching
+closely, Jane saw him thrust this same hand into his trousers pocket, and when
+he brought it out she was certain that the hand was empty. What did this
+curious performance mean? What was the little slip of paper he had found in the
+book? Why had he concealed it in his pocket?
+</p>
+
+<p>
+Still keeping her attention riveted on him, she picked up a book to mask her
+occupation and pretended to be turning its pages. She was glad she had done so,
+for a minute later old Hoff wheeled suddenly and looked sharply about him.
+Apparently having his suspicions disarmed by seeing only herself and the clerk
+there, he turned again to the bookshelves. Jane this time saw him thrust his
+fingers into his waistcoat pocket and withdraw therefrom,—she was almost
+certain of it,—a little slip of paper. She saw him remove from the second row
+of books the fifth from the end, open it quickly and close it again and then
+restore it to its place. As he did so he turned to leave the store.
+</p>
+
+<p>
+“Didn’t you find anything to read to-day, Mr. Hoff?” the clerk asked.
+</p>
+
+<p>
+“Nodding,” he answered. “You keep novels, trash, nodding worth while.”
+</p>
+
+<p>
+Her nerves aquiver, Jane waited until he was out of the store and then stepped
+briskly to the place where he had stood. Hastily she pulled forth the fifth
+book from the end in the second row. Turning its pages she came upon what she
+had anticipated,—a strip of yellow manila paper,—the paper she was sure she had
+seen him take from his pocket. Hastily she examined it, expecting to find some
+message written there. To her chagrin it was just a meaningless jumble of
+figures in three columns.
+</p>
+
+<table summary="" style="margin-left: auto; margin-right: auto"> <tr
+align="right"><td>534</td><td> 5</td><td> 2</td></tr> <tr
+align="right"><td>331</td><td>54</td><td> 6</td></tr> <tr
+align="right"><td>544</td><td>76</td><td> 3</td></tr> <tr align="right"><td>
+49</td><td>12</td><td> 9</td></tr> <tr
+align="right"><td>540</td><td>30</td><td>12</td></tr> <tr
+align="right"><td>390</td><td> 3</td><td> 2</td></tr> <tr
+align="right"><td>519</td><td> 3</td><td> 6</td></tr> <tr
+align="right"><td>327</td><td>20</td><td> 2</td></tr> <tr
+align="right"><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr> <tr
+align="right"><td>&nbsp;</td><td>&nbsp;</td><td>97</td></tr> </table>
+
+<p>
+Her first thought was to thrust the little scrap of paper in her purse and
+start again in pursuit of old Hoff, but a sudden light began to dawn on her.
+This was a cipher message, of course. The old man had left it here for some one
+to come and get. If she followed Hoff, how was she to discover who the message
+was for? Puzzled as to what she should do, she borrowed a pencil from the clerk
+on the pretense of writing a postal and hastily copied the figures, after which
+she restored the slip to the book in which she had found it.
+</p>
+
+<p>
+Glancing about undecidedly, wondering if it would do to take the clerk into her
+confidence, wishing she had some means of reaching Mr. Fleck and asking his
+advice, she spied in a drug-store just across the street a telephone booth. She
+could telephone from there and at the same time keep her eye on the store.
+Quickly she did so, twisting her head around all the time she was ’phoning to
+make sure that no one entered opposite.
+</p>
+
+<p>
+“Is this Mr. Fleck?” she asked. “This is Miss Jones.”
+</p>
+
+<p>
+“So soon?” came back his voice. “What has happened? What is the matter? Have
+you changed your mind?”
+</p>
+
+<p>
+“Not at all,” she answered indignantly. “I’ve discovered something already—a
+cipher message.”
+</p>
+
+<p>
+“What’s that?”
+</p>
+
+<p>
+Even over the wire she could sense the eagerness in Mr. Fleck’s tone, and a
+sense of achievement brought a radiant glow to her cheek.
+</p>
+
+<p>
+“I ran into that man—you know whom—”
+</p>
+
+<p>
+“The young one?” he interrupted.
+</p>
+
+<p>
+“No, the uncle.”
+</p>
+
+<p>
+“Yes, yes, go on,” cried Mr. Fleck impatiently.
+</p>
+
+<p>
+“I followed him along Broadway after I got off at 96th Street and into a
+library and stationery store. I watched him fuss over the books there, and I
+think he got a slip of paper with a message out of one of them.”
+</p>
+
+<p>
+“Good,” cried Mr. Fleck, “that is something new. Go on.”
+</p>
+
+<p>
+“And then he slipped a paper into a book—”
+</p>
+
+<p>
+“Did you notice what book?”
+</p>
+
+<p>
+“I don’t know the title. It was the fifth book from the end on the second
+shelf, and I got the paper and copied it.”
+</p>
+
+<p>
+“Splendid. What did the message say?”
+</p>
+
+<p>
+“It’s just a lot of figures. I put it back after copying it, and I am in a
+drug-store across the street where I can watch to see if any one comes to get
+the message. What shall I do now?”
+</p>
+
+<p>
+“Can you remain there fifteen minutes without arousing suspicion?”
+</p>
+
+<p>
+“Certainly. I’ll say I am waiting for some one.”
+</p>
+
+<p>
+“Good. I’ll get in touch with Carter at once. He’ll tell you what to do when he
+arrives.”
+</p>
+
+<p>
+Impatiently Jane sat there, keeping vigilant watch on the entrance across the
+street, determined to be able to describe minutely each person that entered.
+From time to time she surreptitiously studied the postcard on which she had
+jotted down the mysterious numbers. How utterly meaningless they looked. Surely
+it would be impossible for any one, even Mr. Fleck, to decipher any message
+that these figures might convey. It would be impossible unless one had the key.
+Figures could be made to mean anything at all. She doubted if her discovery
+could be of much importance after all, yet certainly Mr. Fleck had seemed quite
+excited about it.
+</p>
+
+<p>
+She spied Carter passing in a taxi. Two other men were with him. Her first
+impulse was to run out in the street and signal to him, but she waited,
+wondering what she should do. She was glad she had not acted impulsively, for a
+moment later Carter entered alone, evidently having left the car somewhere
+around the corner. She expected that he would address her at once, but that was
+not Carter’s way. He went to the soda counter and ordered something to drink,
+his eyes all the while studying his surroundings. Presently he pretended to
+discover her sitting there. To all appearances it might have been an entirely
+casual meeting of acquaintances.
+</p>
+
+<p>
+“Good-morning, Miss Jones,” he said quite cordially, extending his hand. “I’m
+lucky to have met you, for my daughter gave me a message for you.”
+</p>
+
+<p>
+He put just a little stress on the words “my daughter” and Jane understood that
+he was referring to “Mr. Fleck.”
+</p>
+
+<p>
+“Indeed,” she replied, “what is it?”
+</p>
+
+<p>
+“She wants you to go down-town at once and meet her at Room 708—you know the
+building.”
+</p>
+
+<p>
+“Aren’t you coming, too?”
+</p>
+
+<p>
+“Not right away. I have some errands to do in the neighborhood. I’ve got to buy
+a book for a birthday present. There’s a library around here somewhere, isn’t
+there?”
+</p>
+
+<p>
+“Just across the street,” said Jane, entering into the spirit of the masked
+conversation with interest. “I was looking at a fine book over there a few
+minutes ago. You’ll find it on the second shelf—the fifth book from the end, on
+the north side of the store.”
+</p>
+
+<p>
+“I’ll remember that,” said Carter, repeating, “the fifth book on the second
+shelf.”
+</p>
+
+<p>
+“That’s right,” said Jane, as they left the drug-store together.
+</p>
+
+<p>
+“Which way did the old man go?” asked Carter.
+</p>
+
+<p>
+“Down Broadway—toward home,” she replied. “I wanted to follow him, but it
+seemed more important to stay here and watch to see if any one came for the
+message he left there in the book.”
+</p>
+
+<p>
+“You did just right, and the Chief is tickled to death. He wants to see you
+right away. You have a copy of the message, haven’t you?”
+</p>
+
+<p>
+“Yes, do you wish to see it?”
+</p>
+
+<p>
+“No, but he does. Has anybody entered the store since you were there?”
+</p>
+
+<p>
+“Nobody, that is no one but a couple of girls.”
+</p>
+
+<p>
+“What did they look like? Describe them.”
+</p>
+
+<p>
+“Why,” Jane faltered, “I did not really notice. I was not looking for girls. I
+was watching to see that no other men entered the store.”
+</p>
+
+<p>
+Carter shook his head.
+</p>
+
+<p>
+“You ought to have spotted them, too. You never can tell who the Germans will
+employ. They have women spies, too,—clever ones.”
+</p>
+
+<p>
+“I never thought of their using girls,” protested Jane.
+</p>
+
+<p>
+“Humph,” snapped Carter, “ain’t we using you? Ain’t one of our best little
+operatives right this minute working in a nursegirl’s garb pulling a baby
+carriage with a baby in it up and down Riverside Drive? Well, it can’t be
+helped. You’d better beat it down-town to the Chief right away.”
+</p>
+
+<p>
+“I’ll take a subway express,” said Jane, feeling somewhat crestfallen at his
+implied suggestion of failure.
+</p>
+
+<p>
+Twenty-five minutes later found her once more in Mr. Fleck’s office. Thrilling
+with the excitement of it all she told him in detail how she had followed old
+Hoff and of his peculiar actions in the bookstore.
+</p>
+
+<p>
+“And here,” she said, presenting the postcard, “is an exact copy of the cipher
+message he left there. I copied every figure, in the columns, just as they were
+set down. I don’t suppose though you’ll be able to make head or tail out of it.
+I know I can’t.”
+</p>
+
+<p>
+“Don’t be too sure of that,” smiled Chief Fleck, as he took the card. “When you
+get used to codes, most of them identify themselves at the first glance—at
+least they tell what kind of a code it is. That’s one thing about the Germans
+that makes their spy work clumsy at times. They are so methodical that they
+commit everything to writing. Now the most important things I know are right in
+here”—he tapped his head. “Every once in a while they ransack my rooms, but
+they never find anything worth while. Now this code”—he was studying the card
+intently—“seems to be one of a sort that our friends from Wilhelmstrasse are
+ridiculously fond of using. It is manifestly a book code.”
+</p>
+
+<p>
+“A book code,” Jane repeated perplexedly. “I don’t understand.”
+</p>
+
+<p>
+“It is very simple when two persons who wish to communicate with each other
+secretly both have a copy of some book they have agreed to use. They write
+their message out and then go through the book locating the words of the
+message by page, line and word. That’s what the three columns mean. Our only
+problem is to discover which is the book they both have. They often employ the
+Bible or a dictionary or—”
+</p>
+
+<p>
+He stopped abruptly and studied the columns of figures.
+</p>
+
+<p>
+“This code,” he went on, “on its face is from a book that has at least 544
+pages. One of the pages has at least 76 lines—that’s the middle column—so the
+book must be set in small type.”
+</p>
+
+<p>
+“What book do you suppose it is?” asked Jane interestedly. She was glad now
+that she had listened to Carter. She was sure she was going to like being in
+the service. It was all so interesting, and she was learning so many
+fascinating things.
+</p>
+
+<p>
+“If my theory is right those letters indicate that the book used was an
+almanac. That’s the book that Wilhelmstrasse made use of when a wireless
+message was sent in cipher to the German ambassador directing him to warn
+Americans not to sail on the Lusitania. They betrayed themselves at the Embassy
+by sending out to buy a copy of this almanac. Let’s see how our theory works
+out.”
+</p>
+
+<p>
+Taking up an almanac that lay on his desk he began turning to the pages
+indicated in the first column of figures, checking off the lines indicated in
+the second column and putting a ring around the words marked by the third
+column of figures.
+</p>
+
+<p>
+“Let’s see—page 534—fifth line—second word—that’s (eight). Now then—page
+331—that’s the chronology of the war in the almanac, so I guess we are on the
+right track—fifty-fourth line—sixth word—(transport).”
+</p>
+
+<p>
+“Isn’t it wonderful!” cried Jane.
+</p>
+
+<p>
+“Damn them,” he exploded. “I know we are on the right track. Some transports
+with our troops sailed this morning, and already the German spies are spreading
+the news, hoping to get it to one of their unspeakable U-boats.”
+</p>
+
+<p>
+Quickly he ran through the rest of the cipher, writing it out as he went along:
+</p>
+
+<p>
+EIGHT—TRANSPORT—SAILED—THURSDAY—15,000—INFANTRY—FIVE DESTROYERS.
+</p>
+
+<p>
+As Fleck finished the message his face became almost black with rage.
+</p>
+
+<p>
+“Damn them,” he cried again, “in spite of everything we do they get track of
+all our troop movements. Their information, whenever we succeed in intercepting
+it, is always accurate. If I had my way I’d lock up every German in the country
+until the war was over, and I’d shoot a lot of those I locked up. Until the
+whole country realizes that we are living in a nest of spies—that there are
+German spies all around us, in every city, in every factory, in every regiment,
+on every ship, everywhere right next door to us—this country never can win the
+war.”
+</p>
+
+<p>
+“What does the ‘97’ at the end mean?” questioned Jane timidly, a little bit
+frightened at his outburst, yet more than ever realizing the vast importance of
+his work—and hers.
+</p>
+
+<p>
+“Oh, that’s nothing. Probably old Hoff’s number. Most spies are known just by
+numbers.”
+</p>
+
+<p>
+“Yes, of course,” said Jane, flushing as she recalled that she herself was now
+“K-19.” Was she a spy? Was Mr. Fleck a chief of spies? She always had looked on
+a spy as a despicable sort of person, yet surely the work in which they both
+were engaged was vital to American success at arms—a patriotic and important
+service for one’s country.
+</p>
+
+<p>
+“I suppose,” she said thoughtfully, unwilling to pursue the chain of her own
+thought any further, “that there is evidence enough now to arrest old Mr. Hoff
+right away.”
+</p>
+
+<p>
+“You bet there is,” said Mr. Fleck emphatically, “but that is the last thing I
+am thinking of doing yet. He is only one link in a great chain that extends
+from our battleships and transports there in the North River clear into the
+heart of Berlin. We’ve got to locate both ends of the chain before we start
+smashing the links. We’ve got to find who it is in this country that is
+supplying the money for all their nefarious work, from whom they get their
+orders, how they smuggle their news out. Most of all we have got to find where
+the end of the chain is fastened in our own navy. The traitors there are the
+black-hearted rascals I would most like to get. They are the ones we’ve got to
+get.”
+</p>
+
+<p>
+“Yes, indeed,” assented Jane, suddenly recalling the navy lieutenant she had
+seen in the Ritz chatting so confidentially with old Otto Hoff’s nephew. Was
+he, she wondered, one of the links in the terrible chain? Was he the end—the
+American end of the chain?
+</p>
+
+<p>
+“We’re certain about the old man now,” said Fleck, rising as if to indicate
+that the interview was at an end. “We’ve got to get the young fellow next.
+There is nothing in this to implicate him. That’s your job. Find out all you
+can about him. Get acquainted with him, if possible. That’s one of the weakest
+spots about all German spies. They can’t help boasting to women. Try to get to
+know this Fred Hoff. It’s most important.”
+</p>
+
+<p>
+“I’ll do more than try,” said Jane spiritedly. “I’ll get acquainted right away.
+I’ll make him talk to me.”
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_V"></a>CHAPTER V<br/>
+ON THE TRAIL</h2>
+
+<p>
+Few men, even fathers, realize how utterly inexperienced is the average
+well-brought-up girl, just emerged from her teens, in the affairs of the great
+mysterious world that lies about her. A boy, in his youth living over again the
+history of his progenitors, escapes his nurse to become an adventurer. At ten
+he is a pirate, at twelve a train robber, at fourteen an aviator, actually
+living in all his thoughts and experiences the life of his hero of the moment,
+learning all the while that the world about him is full of adventurers like
+himself, ready to dispute his claims at the slightest pretext, or to carry off
+his booty by prevailing physical force.
+</p>
+
+<p>
+Well-brought-up girls seldom are fortunate enough to have such educative
+experiences. Their friends are selected for them, gentle untaught creatures
+like themselves. Few of them learn much of the practical side of life. A boy is
+delighted at knowing the toughest boy in the neighborhood. A girl’s ambitions
+always are to know girls “nicer” than she is. The average girl emerges into
+womanhood with her eyes blinded, uninformed on the affairs of life, business,
+politics, untrained in anything useful or practical, knowing more of romance
+and history than she does of present-day facts.
+</p>
+
+<p>
+If Chief Fleck had understood how really inexperienced Jane Strong actually
+was, it is a question whether he would have ventured to entrust so important a
+mission to her as he had done. Jane herself, as she left his office, aroused by
+his revelations of the treacherous work of Germany’s spies, and uplifted by his
+appeal to her patriotism, felt enthusiastically capable of obeying his
+instructions. It seemed very simple, as he had talked about it. All she had to
+do was to get acquainted with the young man next door. Yet the further the
+subway carried her from Mr. Fleck’s office after her second visit there that
+morning, the more her heart sank within her, and the fuller her mind became of
+misgivings.
+</p>
+
+<p>
+In a big city next door in an apartment house is almost the same thing as miles
+away. She ransacked her brain, trying to remember some acquaintance who might
+be likely to know the Hoffs, but failed utterly to recall any one. She reviewed
+all possible means of getting acquainted but could find none that seemed
+practical. Never in her life had she spoken to a man without having been
+introduced to him—except of course to Carter and Mr. Fleck, and these men, she
+told herself, were government officials, something like policemen, only nicer.
+At any rate, she knew them only in a business way, not socially. If she was to
+be successful in learning much about the Hoffs—about young Mr. Hoff—she felt
+that it was necessary to make them social acquaintances.
+</p>
+
+<p>
+She must manage to meet Frederic Hoff in some proper way, but how? She thought
+of such flimsy tricks as dropping a handkerchief or a purse in the elevator
+some time when he happened to be in it, but rejected the plan as
+disadvantageous. “Nice” girls did not do that sort of thing, and even though
+she was seeking to entrap her neighbor she did not for a moment wish him to
+consider her as belonging to the other sort. It rather annoyed her to find that
+she cared what kind of an impression she made on him. What difference did it
+make what a German spy thought of her, especially a murderer? Yet, she argued
+with herself, the better the impression she made at first the more likely she
+would be to gain his confidence, and that she knew would delight Mr. Fleck. Was
+Frederic Hoff, too, really, she wondered, a spy? Her face colored as she
+recalled the mental picture she last had had of him, gallantly and admiringly
+raising his cup to her as she left the Ritz, not obtrusively or impudently, but
+so subtly that she was sure that no one had observed it but herself. It seemed
+preposterous to associate the thought of murder with a man like him.
+</p>
+
+<p>
+As she entered the apartment house she was arguing still with herself about
+him. Her intuition told her that Frederic Hoff was a gentleman, and how could a
+gentleman be what Mr. Fleck seemed to think he was? As the door swung to behind
+her she gave a little quick breath of delight, for she had caught sight of a
+uniformed figure standing by the switchboard. She had recognized him at once.
+It was the naval lieutenant who had been at the Ritz. She heard him saying to
+the girl at the switchboard:
+</p>
+
+<p>
+“Tell Mr. Hoff, young Mr. Hoff, that Lieutenant Kramer is here. I’ll wait for
+him down-stairs.”
+</p>
+
+<p>
+Quick as a flash a course of action came into her mind. She saw an opportunity
+too good to be neglected. She hurried forward to where the lieutenant was
+standing, her hand outstretched, with a smile of recognition—feigned, but
+well-feigned—on her lips.
+</p>
+
+<p>
+“Why, Lieutenant Kramer,” she cried, “how delightful. Have you really kept your
+promise at last and come to see the Strongs?”
+</p>
+
+<p>
+She could hardly restrain her amusement as she watched the embarrassed young
+officer strive in vain to recall where it was that he had met her. She had
+relied on the fact that the men in the navy meet so many girls at social
+functions that it is impossible for any of them to remember all they had met.
+</p>
+
+<p>
+“Really, Miss—” he stammered, struggling for some fitting explanation.
+</p>
+
+<p>
+“Don’t tell me,” she warned reprovingly, “that it isn’t Jane Strong that you
+are here to see, after all those nice things you said to me that day we had tea
+aboard your ship.”
+</p>
+
+<p>
+She was hoping he would not insist on going into particulars as to which ship
+it was. Fortunately she had been to functions on several of the war vessels, so
+that she might find a loop-hole if he was too insistent on details.
+</p>
+
+<p>
+“Indeed, Miss Strong,” said Kramer, gallantly pretending to recall her, “I’m
+delighted to see you again. I’ve been intending to come to see you for ever so
+long, but you understand how busy we are now. In fact, it was business that
+brought me here to-day. I’m calling on Mr. Hoff, who lives here, to take him to
+lunch to discuss some important matters.”
+</p>
+
+<p>
+At his last phrase Jane’s heart thrilled. What important matters could there be
+that a navy lieutenant could fittingly discuss with a German, with the nephew
+of the man whose secret code message they had just succeeded in reading?
+Determining within herself to keep fast hold on the beginning she had made, she
+masked her real thoughts and let her face express frank disappointment.
+</p>
+
+<p>
+“How horrid of you,” she continued, “when I was just going to insist that you
+stay and have luncheon with us.”
+</p>
+
+<p>
+He was protesting that it was quite out of the question when the elevator
+brought down her mother, whom Jane at once summoned as an ally, feeling sure
+that considering how many men of her daughter’s acquaintance she had met, it
+would be perfectly safe to keep up the deception.
+</p>
+
+<p>
+“Oh, mother,” she cried, “you remember Lieutenant Kramer, don’t you? I’ve just
+been urging him to stay and have luncheon with us. Do help me persuade him.”
+</p>
+
+<p>
+“Of course I remember Mr. Kramer,” fibbed the matron cordially, all unaware of
+her daughter’s duplicity. “Do stay, Mr. Kramer, and have luncheon with Jane. I
+ordered luncheon for four, expecting to be home, and now I’ve been called away,
+but your aunt is there to chaperone you. It spoils the servants so to prepare
+meals and have no one to eat them, to say nothing of displeasing Mr. Hoover.
+It’s really your duty—your duty as a patriot—to stay and prevent a food-waste.”
+</p>
+
+<p>
+“I’ve just been trying to explain to your daughter that I was taking Mr. Hoff
+to luncheon with me. Here he is now.”
+</p>
+
+<p>
+Mrs. Strong’s eyes swept the tall figure approaching appraisingly and
+apparently was pleased with his aspect. As Mr. Hoff was presented she hastened
+to include him in the invitation to luncheon.
+</p>
+
+<p>
+“Have pity on a poor girl doomed to eat a lonely luncheon by her parent’s
+neglect,” urged Jane. “Really, you must come, both of you. Nice men to talk to
+are so scarce in these war times that I have no intention of letting you
+escape.”
+</p>
+
+<p>
+“I’m in Kramer’s hands,” said Frederic Hoff gallantly, “but if he takes me to
+some wretched hotel instead of accepting such a charming invitation as this, my
+opinion of him as a host will be shattered.”
+</p>
+
+<p>
+“But,” struggled Kramer, realizing that it must be a case of mistaken identity
+and sure now that he never had met either Jane or her mother before, “we have
+some business to talk over.”
+</p>
+
+<p>
+“Business always can wait a fair lady’s pleasure,” said Hoff. “Is this ruthless
+war making you navy men ungallant?”
+</p>
+
+<p>
+With a mock gesture of surrender, and as a matter of fact, not at all averse to
+pursuing the adventure further, Lieutenant Kramer permitted Jane to lead the
+way to the Strong apartment.
+</p>
+
+<p>
+Soon, with the familiarity of youth and high spirits, the three of them were
+merrily chatting on the weather, the war, the theater and all manner of things.
+Jane, in the midst of the conversation, could not help noting that Hoff had
+seated himself in a chair by the window where he seemed to be keeping a
+vigilant eye on the ships that could be seen from there. Even at the luncheon
+table he got up once and walked to the window to look out, making some clumsy
+excuse about the beautiful view.
+</p>
+
+<p>
+Determined to press the opportunity, Jane endeavored to turn the conversation
+into personal channels.
+</p>
+
+<p>
+“You are an American,” she said turning to Hoff, “are you not? I’m surprised
+that you are not in uniform, too.”
+</p>
+
+<p>
+“A man does not necessarily need to be in uniform to be serving his
+government,” he replied. “Perhaps I am doing something more important.”
+</p>
+
+<p>
+“But you are an American, aren’t you?” she persisted almost impudently, driven
+on by her eagerness to learn all she possibly could about him.
+</p>
+
+<p>
+“I was born in Cincinnati,” he replied hesitantly.
+</p>
+
+<p>
+She could not help observing how diplomatically he had parried both her
+questions. Mentally she recorded his exact words with the idea in her mind of
+repeating what he had said verbatim to her chief.
+</p>
+
+<p>
+“Then you <i>are</i> doing work for the government?”
+</p>
+
+<p>
+Intensely she waited for his answer. Surely he could find no way of evading
+such a direct inquiry as this.
+</p>
+
+<p>
+“Every man who believes in his own country,” he answered, modestly enough, yet
+with a curious reservation that puzzled her, “in times like these is doing his
+bit.”
+</p>
+
+<p>
+She felt far from satisfied. If he was born in America, if he really was an
+American at heart, his replies would have been reassuring, but his name was
+Hoff. His uncle was a German-American, a proved spy or at least a messenger for
+spies. If her guest still considered Prussia his fatherland the answers he had
+made would fit equally well.
+</p>
+
+<p>
+“You’re just as provokingly secretive as these navy men,” she taunted him.
+“When I try to find out now where any of my friends in the navy are stationed
+they won’t tell me a thing, will they, Mr. Kramer?”
+</p>
+
+<p>
+“I’ll tell you where they all are,” said Lieutenant Kramer. “Every letter I’ve
+had from abroad recently from chaps in the service has had the same address—‘A
+deleted port.’”
+</p>
+
+<p>
+“I really think the government is far too strict about it,” she continued. “My
+only brother is over there now fighting. All we know is that he is ‘Somewhere
+in France.’ War makes it hard on all of us.”
+</p>
+
+<p>
+“Yet after all,” said Hoff soberly, “what are our hardships here compared to
+what people are suffering over there, in France, in Belgium, in Germany, even
+in the neutral countries. They know over there, they have known for three
+years, greater horrors than we can imagine.”
+</p>
+
+<p>
+The longer she chatted with him, the more puzzled Jane became. He seemed to
+speak with sincerity and feeling. Her intuition told her that he was a man of
+honor and high ideals, and yet in everything he said there was always reserve,
+hesitation, caution, as if he weighed every word before uttering it. Intently
+she listened, hoping to catch some intonation, some awkward arrangement of
+words that might betray his tongue for German, but the English he spoke was
+perfect—not the English of the United States nor yet of England, but rather the
+manner of speech that one hears from the world-traveler. Question after
+question she put, hoping to trap him into some admission, but skilfully he
+eluded her efforts. She decided at last to try more direct tactics.
+</p>
+
+<p>
+“Your name has a German sound. It is German, isn’t it?” she asked.
+</p>
+
+<p>
+“I told you I was born in Cincinnati,” he answered laughingly. “Some people
+insist that that is a German province.”
+</p>
+
+<p>
+“But you have been in Germany, haven’t you?”
+</p>
+
+<p>
+“Why do you ask?”
+</p>
+
+<p>
+“I was wondering if you had not lived in that country?”
+</p>
+
+<p>
+“I could not well have been there without having lived there, could I?”
+</p>
+
+<p>
+Kramer came to her rescue.
+</p>
+
+<p>
+“Of course he has lived there. Mr. Hoff and I both attended German
+universities. That was what brought us together at the start—our common bond.”
+</p>
+
+<p>
+“Did you attend the same university?” asked Jane. She felt that at last she was
+on the point of finding out something worth while.
+</p>
+
+<p>
+“No,” said Kramer, “unfortunately it was not the same university.”
+</p>
+
+<p>
+She caught her breath and blushed guiltily. If Mr. Kramer had attended a German
+university he could not be an Annapolis graduate. He must be a recent comer in
+the American navy. She knew that since the war began some civilians had been
+admitted. It had just dawned on her that if this was the case, since visiting
+on board ships was no longer permitted, it clearly was impossible for her to
+have met him at any function on a warship. He must have known all along that
+she knew she never had met him. He must have been aware, too, that her mother
+did not know him. She felt that she was getting into perilous waters and
+fearful of making more blunders refrained from further questions. A vague alarm
+began to agitate her. If he had detected her ruse when she first had spoken to
+him, why had he not admitted it? What had been his purpose in accepting her
+invitation and in bringing into it his German friend, Mr. Hoff?
+</p>
+
+<p>
+The ringing of the telephone bell came as a welcome interruption. A maid
+summoned her to answer a call, and excusing herself from the table she went to
+the ’phone desk in the foyer.
+</p>
+
+<p>
+“Hello, is this you, Miss Strong?”
+</p>
+
+<p>
+It was Carter’s voice, but from the anxious stress in it she judged that he was
+in a state of great perturbation.
+</p>
+
+<p>
+“Yes, it is Jane Strong speaking,” she answered.
+</p>
+
+<p>
+“You know who this is?”
+</p>
+
+<p>
+“Of course. I recognize your voice. It’s Mr. C—”
+</p>
+
+<p>
+A warning “sst” over the ’phone checked her before she pronounced the name and
+starting guiltily she turned to look over her shoulder, feeling relieved to see
+the two men still chatting at the table, apparently paying no attention to her.
+</p>
+
+<p>
+“I understand,” she answered quickly. “What is it?”
+</p>
+
+<p>
+“You know that book I told you I was going to buy?”
+</p>
+
+<p>
+“Yes, yes!”
+</p>
+
+<p>
+“It’s not there.”
+</p>
+
+<p>
+“What’s that? The book is gone!”
+</p>
+
+<p>
+“The book is there all right, but it’s not the book I want.”
+</p>
+
+<p>
+“Are you sure,” she questioned, “that you looked at the right book?”
+</p>
+
+<p>
+“I looked at the one you told me to.”
+</p>
+
+<p>
+“Are you certain—the fifth book on the second shelf.”
+</p>
+
+<div class="fig" style="width:100%;">
+<a name="illus03"></a>
+<a href="images/illus03.jpg">
+<img src="images/illus03.jpg" width="423" height="650" alt="Illustration:" /></a>
+<p class="caption">Had he been standing there listening? How much had he heard?</p>
+</div>
+
+<p>
+She heard a movement behind her and turning quickly saw Frederic Hoff standing
+behind her, his hat and stick in hand. Panic-stricken, she hung up the receiver
+abruptly. Had he been standing there listening? How much had he heard? He would
+know, of course, what “the fifth book on the second shelf” signified. Had her
+carelessness betrayed to him the fact that he and his uncle were being closely
+watched? Anxiously she studied his face for some intimation of his thoughts. He
+was standing there smiling at her, and to her agitated brain it seemed that in
+his smile there was something sardonic, defying, challenging.
+</p>
+
+<p>
+“I cannot tell you, Miss Strong, how much I have enjoyed your hospitality. You
+made the time so interesting that I had no idea it was so late. You will excuse
+me if I tear myself away at once. I have some important business that demands
+my immediate attention.”
+</p>
+
+<p>
+“I hope you’ll come again,” she managed to stammer, “and you, too, Mr. Kramer.”
+</p>
+
+<p>
+White-faced and terrified she escorted them out, leaving the telephone bell
+jangling angrily. As the door closed behind them, she sank weak and faint into
+a chair, not daring yet to go again to the ’phone until she was sure they were
+out of hearing.
+</p>
+
+<p>
+What was the “immediate business” that was calling them away so suddenly? She
+was more than afraid that her incautious use of the phrase “the fifth book on
+the second shelf” had betrayed her. What else could it mean? Why else would
+they have departed so abruptly?
+</p>
+
+<p>
+Mustering up her strength and courage she went once more to the ’phone.
+</p>
+
+<p>
+“Hello, hello, is that you, Miss Strong? Some one cut us off,” Carter’s voice
+was impatiently saying.
+</p>
+
+<p>
+“Hello, Mr. Carter,” she called, “this is Jane Strong speaking. Where can I see
+you at once? It’s most important.”
+</p>
+
+<p>
+“I’ll be sitting on a bench along the Drive two blocks north of your house
+inside of ten minutes.”
+</p>
+
+<p>
+“I’ll meet you there,” she answered quickly, with a feeling of relief.
+</p>
+
+<p>
+The situation was becoming far too complicated, she felt, for her to handle
+alone. Carter would know what to do. If Hoff and Kramer had learned from her
+about the trailing of old Hoff, the sooner it was reported to more experienced
+operatives than she was the better.
+</p>
+
+<p>
+“Don’t speak to me when you see me sitting on the bench,” warned Carter. “Just
+sit down there beside me and wait till I make sure no one is watching us. I’ll
+speak to you when it’s safe.”
+</p>
+
+<p>
+“I understand,” she answered. “Good-by.”
+</p>
+
+<p>
+As she hastened to don her hat and coat she was almost overwhelmed by a
+revulsion of feeling. Two days ago the world about her had seemed a carefree,
+pleasant, even if sometimes boresome place. Now she shudderingly saw it
+stripped of its mask and revealed for the first time in all its hideousness, a
+place of murders and spying and secret machinations. People about her were no
+longer more or less interesting puppets in a play-world. They were vivid
+actualities, scheming and planning to thwart and overcome each other. Almost
+she wished that her dream had been undisturbed and that she had not been waked
+up to the realities. Almost she was tempted to abandon her new-found
+occupation.
+</p>
+
+<p>
+Then, once more, a feeling of patriotic fervor swept over her. She thought of
+her brother fighting somewhere in the trenches. She pictured to herself the
+other brave soldiers in the great ships in the Hudson. She remembered the evil
+plotters with their death-dealing bombs, striving to bring about a ghastly end
+for them all before they might strengthen the lines of the Allies. She thought,
+too, of those humanity-defying U-boats, forever at their devilish work, guided
+to their prey by crafty, spying creatures right here in New York, more than
+likely by the very people next door.
+</p>
+
+<p>
+With her pretty lips set in a resolute line she left the house and walked
+rapidly north. Come what may she would go on with it. Her country needed her,
+and that was all-sufficient.
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_VI"></a>CHAPTER VI<br/>
+THE MISSING MESSAGE</h2>
+
+<p>
+After Jane left Carter at the drug-store, he did not cross immediately to the
+bookshop opposite. His detective work was not of that sort. He strolled
+leisurely around the corner long enough to give some directions to his two
+aides waiting there and then, moving across the street, paused in front of the
+window of books as if something there had attracted his attention. All the
+while he was keeping a sharp eye for any person who looked as if they might be
+connected in any way with old Hoff. Satisfied that his entrance was unobserved
+he strolled casually in and began looking over the volumes in the lending
+library. The lone clerk in the store—a young woman—at first volunteered some
+suggestions, but as they went unheeded she returned to her work of posting up
+the accounts.
+</p>
+
+<p>
+As soon as her attention was occupied Carter moved at once to the end of the
+shelf that Miss Strong had indicated and removed the fifth book. To his
+amazement he found nothing whatever concealed between the leaves. The books on
+either side on the same shelf failed to yield up anything. He tried the shelf
+above and the shelf below. Perhaps Miss Strong had been mistaken in the
+directions. He examined the books at the other end. There was nothing there. He
+recalled that the girl had said that no one except two girls had entered the
+store between the time she had discovered and copied the cipher and the time of
+his arrival. If these girls had not taken the message away there could be only
+one other explanation—the clerk in the bookstore must have removed it and
+concealed it somewhere.
+</p>
+
+<p>
+“Which of the war books do you think the best?” he asked for the purpose of
+starting a conversation.
+</p>
+
+<p>
+“There’s that many it is hard to say, sir,” the young woman answered.
+</p>
+
+<p>
+Something in her inflection made him look sharply at her. Her accent surely was
+English, or possibly Canadian. A few judicious questions quickly brought out
+the information that she came from Liverpool and that she had three brothers in
+the British army. Carter decided that it was preposterous to suspect her of
+being in league with German agents. There was only one other thing that could
+have happened. Some one else—some one who had eluded Miss Strong’s notice—had
+removed the cipher message.
+</p>
+
+<p>
+Promptly he had telephoned to her to meet him. He was glad that he had done so,
+for her evident perturbation as she answered the ’phone both interested and
+puzzled him. Pausing just long enough to report to Chief Fleck, he hastened to
+the rendezvous, arriving there first. He selected a bench apart from the
+others, where the wall jutted out from the walk, and seating himself, idled
+there as if merely watching the river. In obedience with his instructions Jane,
+when she arrived, planted herself nonchalantly on the same bench, and paying no
+attention to him, pretended to be reading a letter.
+</p>
+
+<p>
+Presently Carter rose and stretching himself lazily, as if about to leave,
+turned to face the Drive, his keen eyes taking in all the passers-by.
+Apparently satisfied, he sat down abruptly and turned to speak to the girl
+beside him.
+</p>
+
+<p>
+“All right, K-19,” he said, “it’s safe. Now we can talk.”
+</p>
+
+<p>
+“I’ve got such a lot to tell,” cried Jane.
+</p>
+
+<p>
+“First,” said Carter, “just where did you put that cipher message when you put
+it back?”
+</p>
+
+<p>
+“What!” cried the girl, her face blanching, “wasn’t it there? Didn’t you find
+it?”
+</p>
+
+<p>
+Carter shook his head.
+</p>
+
+<p>
+“It must be there,” she insisted. “Are you sure you looked in the right
+book—the fifth book from the end on the second shelf on the up-town side of the
+store.”
+</p>
+
+<p>
+“It’s not there. I examined every book there, on the shelves above and below
+and at the other end, too.”
+</p>
+
+<p>
+“The clerk in the store, that girl—must have hidden it,” cried Jane with
+conviction.
+</p>
+
+<p>
+“That’s not likely. She’s an English girl—from Liverpool. She has three
+brothers fighting on the Allies’ side. We can leave her out of it.”
+</p>
+
+<p>
+“Who else could have taken it?”
+</p>
+
+<p>
+“There’s only one answer,” said Carter slowly and impressively. “Some one went
+into that store between the time you copied the message and the time I met you
+at the drug-store. You told me no one but a couple of girls had entered. Was
+there any one else? Think—think!”
+</p>
+
+<p>
+“There was no one,” said Jane thoughtfully, “no one except the two girls
+together. I never thought of suspecting them.”
+</p>
+
+<p>
+“What did they look like? Could you identify them?”
+</p>
+
+<p>
+“I did not notice them particularly,” Jane confessed. “I was expecting Mr.
+Hoff’s confederate to be a man.”
+</p>
+
+<p>
+“They’re using a lot of women spies,” asserted Carter. “Don’t you remember what
+the girls looked like?”
+</p>
+
+<p>
+“One of them,” said Jane thoughtfully, “wore an odd-shaped hat, a sort of a tam
+with a red feather.”
+</p>
+
+<p>
+“Would you know the hat again if you saw it?”
+</p>
+
+<p>
+“I think—I’m sure I would.”
+</p>
+
+<p>
+“Well, that’s something. Watch for that hat, and if you ever see it again trail
+the girl till you find out where she lives. If you locate her telephone Mr.
+Fleck at once. And now, what has happened to you?”
+</p>
+
+<p>
+“I’ve so much to tell, important, very important, I think.”
+</p>
+
+<p>
+She hesitated, wondering how much Carter was in the chief’s confidence. Did he
+know the import of the cipher message she had discovered? Ought she to talk
+freely to him?
+</p>
+
+<p>
+“Do you know what those numbers meant?” she asked.
+</p>
+
+<p>
+“Yes,” he replied, “about the eight transports sailing. The Chief told me about
+it.”
+</p>
+
+<p>
+“Well,” she said, with a sigh of relief, “I have become acquainted with young
+Mr. Hoff already. I’ve just had luncheon with him.”
+</p>
+
+<p>
+“That’s fine,” he cried enthusiastically. “A lucky day it was I ran across
+you.”
+</p>
+
+<p>
+“When you ’phoned me he was there in our apartment, he and a navy lieutenant,
+Mr. Kramer.”
+</p>
+
+<p>
+Attentively he listened as she told of the ruse by which she had inveigled them
+into coming to luncheon, reminding him that it was the same naval officer that
+he himself had seen in close conversation with Hoff at the Ritz the day before.
+He nodded his head in a satisfied way.
+</p>
+
+<p>
+“They are together too much to be up to any good,” he commented. “Tell me the
+rest. What made you so rattled when I ’phoned you?”
+</p>
+
+<p>
+He listened intently as she told of finding young Hoff standing right behind
+her as she had inadvertently mentioned aloud “the fifth book.”
+</p>
+
+<p>
+“Do you suppose,” she questioned anxiously, “that he overheard me and
+understood what we were talking about? He left right away after that. I do hope
+I didn’t betray the fact that they are being watched.”
+</p>
+
+<p>
+“We can’t tell yet,” said Carter. “The precautions they take and the roundabout
+methods they have of communicating with each other show that all Germany’s
+spies constantly act as if they knew they were under surveillance. In fact, I
+suppose every German in this country, whether he is a spy or not, can’t help
+but notice that his neighbors are watching him—and well they might.”
+</p>
+
+<p>
+“I don’t see why,” cried Jane, “Mr. Fleck did not have old Mr. Hoff locked up
+right away. He could not do any more damage then, or be sending any more
+messages about our transports.”
+</p>
+
+<p>
+“That wouldn’t have done the least bit of good,” said Carter decisively.
+“Watching our transports sail and spreading the news is only one of many of
+their activities. Somewhere in this country there is a master-council of German
+plotters, directing the secret movements of many hundreds, perhaps many
+thousands of spies and secret agents. They have their work well mapped out.
+They have men fomenting strikes in the government shipyards and stirring up all
+kinds of labor troubles. Others are busy making bombs and contriving diabolical
+methods of crippling the machinery in munition plants. A flourishing trade in
+false passports is being carried on, enabling their spies to travel back and
+forth across the Atlantic in the guise of American business men, ambulance
+drivers, Red Cross workers and what not. Still others of their agents are
+detailed to arrange for the shipping of the supplies Germany needs to neutral
+countries. By watching shipping closely they gather information, too, that is
+of value to the U-boat commanders. Every time there is any sort of activity
+against the draft, or peace meetings, or Irish agitation, we find traces of
+German handiwork. We have dismantled and sealed up every wireless plant we
+could find in America except those under direct government control, yet we are
+positive that every day wireless messages go from this country
+somewhere—perhaps to Mexico or South America, and from there are relayed to
+Germany, probably by way of Spain. Think of the enormous amount of money
+required to finance these operations and keep all these spies under pay. While
+we try to thwart their plans as we find them, all our efforts are constantly
+directed toward discovering who controls and finances their damnable system. We
+seldom if ever arrest any of the spies we track down, but keep watching,
+watching, watching, hoping that sooner or later the master-spy will be betrayed
+into our hands.”
+</p>
+
+<p>
+“You don’t think then,” said Jane disappointedly, “that old Mr. Hoff is one of
+the important spies.”
+</p>
+
+<p>
+“We can’t tell yet. He may be just one of the cogs—perhaps what they call a
+control-agent. We don’t know yet. Germany has been building up her spy system
+forty years, and it is ingenious beyond imagination. Her codes are the most
+difficult in the world. It took the French three years and a half to decipher a
+code despatch from Von Bethmann Hollweg to Baron von Schoen. By the time they
+had it deciphered in Paris the Germans had discovered what they were doing and
+had changed the code. It is seldom any one of the German spies knows much about
+the work that other spies are doing. The rank and file merely get orders to go
+and do such a thing, or find out about such a thing. Often they are not told
+what they are doing it for. They obey their orders implicitly in detail and
+make their reports, get new orders and go on to do something else. Only their
+master spy-council here knows what the summary of their efforts amounts to.
+Arresting old Hoff, or a dozen more like him, would not cripple them much.
+Other men would be assigned in their places, and the nefarious work would go
+on.”
+</p>
+
+<p>
+“I don’t know,” insisted Jane thoughtfully. “I believe that old Mr. Hoff is a
+far bigger spoke in the wheel than you think. I watched his face as I followed
+him this morning. He is a man of great intelligence, and I should judge a man
+of education.”
+</p>
+
+<p>
+“They’d hardly be using a man of that sort to carry messages,” objected Carter.
+“Maybe you’re right. We have not watched him long enough to find out. We’ve got
+nothing yet on the young fellow. Maybe he’s the real boss of the outfit. At any
+rate he is the one the Chief is anxious to have you keep tabs on. Are you to
+see him again?”
+</p>
+
+<p>
+“Oh, yes,” the girl answered quickly, a touch of color coming to her face, “I
+think so. I asked him to come to see me. I think—in fact I’m sure—he will. Do
+you want me to watch the bookshop to see if they leave any more messages
+there?”
+</p>
+
+<p>
+“No,” said Carter. “I’ve got one of my men assigned to that. You keep after the
+young fellow. Say, does your father keep an automobile?”
+</p>
+
+<p>
+“Yes, but it’s been put up for the winter. We’re going to bring it out as soon
+as Dad can find a chauffeur. Our man—the one we had last year—has been drafted,
+and good chauffeurs are scarce now. Why did you ask?”
+</p>
+
+<p>
+“I’ll find you a chauffeur,” said Carter decisively.
+</p>
+
+<p>
+“You mean”—Jane hesitated—“a detective?”
+</p>
+
+<p>
+Carter grinned.
+</p>
+
+<p>
+“An agent like you and me. K-27 is an expert chauffeur and mechanic with fine
+references. His last job was with the British High Commission, and they gave
+him good testimonials.”
+</p>
+
+<p>
+“What do you want him to do?”
+</p>
+
+<p>
+“Driving the Strong car makes a good excuse for him to be around without
+exciting suspicion. He might even come up-stairs once in a while to get orders
+or do little repair jobs around the apartment. Some day, supposing the people
+next door were all out, he might even succeed in planting a dictograph so that
+you could sit there in your room and hear all that was going on and what the
+Hoffs talked about. That would help a lot. If ever he was caught prowling about
+the hall, the fact that he was your chauffeur would provide him with an alibi.
+Do you think you can fix it up with your father?”
+</p>
+
+<p>
+“I’m sure of it. When can he come?”
+</p>
+
+<p>
+“The sooner the better—to-night—to-morrow.”
+</p>
+
+<p>
+“I’ll tell Dad at dinner to-night that I’ve learned of a good chauffeur and
+have asked him to come in at eight this evening.”
+</p>
+
+<p>
+“Fine,” said Carter. “He’ll be there. And don’t forget to report once a day to
+the Chief.”
+</p>
+
+<p>
+“I won’t.”
+</p>
+
+<p>
+“And if anything unexpected turns up,” said Carter, “and you need help, take a
+good look at that nurse that is passing.”
+</p>
+
+<p>
+Jane turned curiously to inspect a buxom girl in a drab nurse’s costume who was
+wheeling a baby carriage along the sidewalk near-by. Seeing herself observed
+the girl stopped, and at a sign from Carter wheeled her charge up to where they
+were standing.
+</p>
+
+<p>
+“K-22,” said Carter, “I want to introduce you to K-19.”
+</p>
+
+<p>
+Gravely the two girls, nodding, inspected each other.
+</p>
+
+<p>
+“She always wears a blue bow at her neck,” Carter added, “so you can recognize
+her by that.”
+</p>
+
+<p>
+The girl smilingly nodded again and wheeled the carriage on up the Drive.
+</p>
+
+<p>
+“Who is she?” Jane asked eagerly, turning to Carter.
+</p>
+
+<p>
+“Just K-22,” said the agent, “and all she knows about you is that you are K-19.
+That’s the way we work in the service mostly. The less one operative knows
+about another the better, for what you don’t know you can’t talk about.”
+</p>
+
+<p>
+“Doesn’t she even know my name?” persisted Jane.
+</p>
+
+<p>
+“She may have found it out for herself while she has been watching the Hoffs,
+but we didn’t tell her. Nobody in the service knows who you are except the
+Chief and myself—and of course K-27 will have to know if he takes the
+chauffeur’s job.”
+</p>
+
+<p>
+“What is his name?”
+</p>
+
+<p>
+“I don’t know yet,” said Carter gravely. “I haven’t seen his references, so I
+don’t know what name they are made out in. You can find out what to call him
+when he reports to-night. You’ll see that he gets the job?”
+</p>
+
+<p>
+“Indeed I will,” answered Jane, experiencing a sense of relief at the prospect
+of having some one at hand in the household with whom she could discuss her
+activities.
+</p>
+
+<p>
+And as she had anticipated she had little difficulty in interesting her father
+in the subject of a new chauffeur. Mr. Strong for several days had been trying
+to find one without success.
+</p>
+
+<p>
+“You say this man’s last place was with the British High Commission.”
+</p>
+
+<p>
+“Some one of the girls was telling me,” she prevaricated. “I asked her to tell
+him to come here to-night at eight. He ought to be here any minute.”
+</p>
+
+<p>
+Presently the candidate for the place was announced.
+</p>
+
+<p>
+“Mr. Thomas Dean to see about a chauffeur’s position,” the maid said as she
+brought him in, and while her father questioned him, Jane studied him
+carefully.
+</p>
+
+<p>
+He could not be more than thirty, she decided, and the voice in which he
+answered her father’s questions was surely a cultivated one. It would not have
+surprised her in the least to have learned that he was a college man. Even in
+his neat chauffeur’s uniform he seemed every inch a gentleman. He had been
+driving a car for twelve years, he explained. No, he did not drink and had
+never been arrested for speeding.
+</p>
+
+<p>
+“Are you a married man?”
+</p>
+
+<p>
+Jane listened curiously for his answer to this question of her father’s. Surely
+it would be far more interesting if he wasn’t. Of course, he was a chauffeur
+and a detective, but somehow she could not help feeling, perhaps because of his
+easy manner, that more than likely most of the cars he had driven were cars
+that he himself had owned. K-27 she decided was going to be quite a
+satisfactory partner to work with.
+</p>
+
+<p>
+“There’s just one thing,” said her father. “You say you are not married. I
+can’t understand why it is that you are not in the army.”
+</p>
+
+<p>
+“I am not eligible,” said Thomas Dean calmly, though Jane thought she could
+detect a twinkle in his eye. “One of my legs has been broken in three places.”
+</p>
+
+<p>
+“But there are things a young fellow can do for his country besides marching,”
+insisted Mr. Strong. “The government needs mechanics, too.”
+</p>
+
+<p>
+“I know,” said Thomas Dean, almost humbly, “but I have a mother, and my father
+is dead.”
+</p>
+
+<p>
+Jane smiled a little to herself at his answer. She noted how carefully he had
+avoided saying anything about having a mother to support. It would not have
+surprised her in the least to have learned that he was a millionaire, yet her
+father, ordinarily shrewd in judging men, apparently was satisfied.
+</p>
+
+<p>
+“Supporting a mother, I suppose, comes first,” he said. “Well, Dean, when can
+you come?”
+</p>
+
+<p>
+“To-morrow morning if you like,” the new chauffeur answered, nodding gravely to
+Jane as he withdrew.
+</p>
+
+<p>
+Mr. Strong, as soon as they were alone, spoke enthusiastically about the young
+man, complimenting Jane on having discovered him, and as he did so a revulsion
+of feeling swept over her. For the first time she realized into what duplicity
+her work for the government was leading her. She had pledged her word to Chief
+Fleck that she would keep her activities an absolute secret even from her
+parents. Already she was deceiving them, bringing into the household an
+employee who really was a detective, a spy. She was tempted to tell her father,
+at least, what she was doing. He, she knew, was filled with a high spirit of
+patriotism. While he might not wholly approve of what she herself was doing she
+might be able to convince him of the necessity of it. If she could only tell
+him, her conscience would not trouble her, but there was her promise—her sacred
+promise; she couldn’t break that.
+</p>
+
+<p>
+While with troubled mind she debated with herself between her duty to her
+parents and her duty to her country, one of the maids came in with a box of
+flowers for her.
+</p>
+
+<p>
+Eagerly she cut the string and opened the box. Chief Fleck especially wanted
+her to cultivate young Hoff’s acquaintance. If her suspicion as to the sender
+were correct, she could feel that she had made an auspicious beginning.
+</p>
+
+<p>
+In a tremor of excitement she snatched off the lid of the box and tore out the
+accompanying card from its envelope.
+</p>
+
+<p>
+“Mr. Frederic Johann Hoff,” it read, “in appreciation of a most profitable
+afternoon.”
+</p>
+
+<p>
+Wondering at the peculiar sentiment of the card she tore off the enclosing
+tissue paper from the flowers. Orchids, wonderful, delicately tinted orchids,
+nestled in a sheaf of feathery green fern—five of them.
+</p>
+
+<p>
+“Five orchids—the fifth book—a profitable afternoon.”
+</p>
+
+<p>
+Jane felt sure now she had betrayed the government’s watchers to at least one
+of the watched.
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_VII"></a>CHAPTER VII<br/>
+THE WOMAN ON THE ROOF</h2>
+
+<p>
+It is amazing how much information on any given subject any one—even a wholly
+inexperienced person like Jane Strong—can acquire within a few days when one’s
+mind is set resolutely to the task. It is much more amazing how much one can
+learn when aided and abetted by an experienced chauffeur, or more properly
+speaking a mysterious and cultured secret service operative, masquerading as an
+automobile driver.
+</p>
+
+<p>
+Who Thomas Dean was, why he was in the secret service, and what his real name
+was, were questions that kept perpetually puzzling Jane. In the presence of her
+father and mother, so skilful an actor was he that it was hard to believe him
+anything but what he appeared to be, a respectful, intelligent and prompt young
+man who knew the traffic regulations and the anatomy of automobiles. When he
+and Jane were by themselves he invariably threw off his mask to some extent. He
+became the director instead of the directed, though never letting anything of
+the personal relation creep in. That he was college-bred, Jane felt certain. He
+spoke both German and French much better than she did. He occasionally used
+words that no ordinary chauffeur would be likely to know the meaning of.
+Sharing the secret of such a mission as theirs, they quickly found themselves
+on a friendly basis, yet the girl hesitated whenever her curiosity prompted her
+to try to find out anything that would reveal his identity. There was always
+present the feeling that any exhibition of undue curiosity on her part would be
+a disappointment to her employer. The chief disapproved of curiosity except on
+one subject—what the Germans were doing.
+</p>
+
+<p>
+Many things Jane and her aide learned about the Hoffs in the days following
+Thomas Dean’s coming, reporting them all as directed. Of how much or of how
+little value her discoveries were Jane had no means of knowing. Chief Fleck
+seemed satisfied but was always urging her to acquire more information and more
+details, always details. Dean, too, had seconded the warning about observing
+even what seemed to be insignificant trifles.
+</p>
+
+<p>
+“Most of the Germans,” he said to her, “you will find are very methodical. They
+like to do things according to schedule. For instance, I learned yesterday that
+old Hoff and his nephew frequently go off on all-day automobile trips. They
+always go on Wednesday.”
+</p>
+
+<p>
+“Are they going to-morrow?”
+</p>
+
+<p>
+“The presumption is that they will. They have done so every Wednesday for six
+weeks.”
+</p>
+
+<p>
+“Can’t we follow them in our car?” cried the girl, “and see what they are up
+to?”
+</p>
+
+<p>
+Dean shook his head.
+</p>
+
+<p>
+“The Chief is looking out for that. There is more important work for us to do
+right here. I want to try to install a dictograph in their apartment.”
+</p>
+
+<p>
+“How exciting.”
+</p>
+
+<p>
+“You must find some excuse for me to come up into your apartment and see to it
+that none of your people are about.”
+</p>
+
+<p>
+“That will be easy. Mother and Aunt will be out all day, and it is cook’s
+afternoon off. I can easily send the maids out.”
+</p>
+
+<p>
+“But that’s not all. There is the Hoffs’ servant to be disposed of.”
+</p>
+
+<p>
+“I don’t see how I can manage that,” said Jane. She could think of no possible
+way of overcoming that difficulty.
+</p>
+
+<p>
+“She’s an old German woman—Lena Kraus,” continued Dean. “I’ve found out that
+she always washes on Wednesdays. When she goes up on the roof in the afternoon
+to get the clothes will be our time. It will be your job to see that she stays
+there until I am through. It will not take me more than half an hour.”
+</p>
+
+<p>
+“But what will I do if she starts to come down? How will I stop her?”
+</p>
+
+<p>
+“You’ll have to use your wits. Keep her talking as long as you can. When she
+starts down come with her. Press the elevator button four times. I’ll leave the
+door of the Hoff apartment open and very likely will hear it in time to get
+away.”
+</p>
+
+<p>
+“But how’ll you get their door open?”
+</p>
+
+<p>
+Dean smilingly drew forth a key.
+</p>
+
+<p>
+“I borrowed the superintendent’s bunch last night, pretending I had lost the
+key to my locker in the basement. I knew he had a master-key that unlocks all
+the apartment doors, and there was no trouble in picking it out. I had some wax
+in my hand and made an impression of it right under his nose.”
+</p>
+
+<p>
+“How clever,” cried Jane, “but suppose the Hoffs do not go off to-morrow. What
+will we do then?”
+</p>
+
+<p>
+“You are taking tea with young Hoff this afternoon, aren’t you?”
+</p>
+
+<p>
+“Yes,” said Jane, “that is, he asked me to. I am to meet him at the Biltmore at
+five.”
+</p>
+
+<p>
+“When you’re with him propose doing something together to-morrow afternoon. See
+what he says.”
+</p>
+
+<p>
+“That’s an excellent idea. I’ll ask him to go to the matin&eacute;e with me.”
+</p>
+
+<p>
+“That will do splendidly. Has he been with that navy officer lately?”
+</p>
+
+<p>
+“Not since Sunday, to my knowledge. I wonder if old Mr. Hoff has left any more
+cipher messages at the bookshop?”
+</p>
+
+<p>
+“No,” said Dean, “he hasn’t. The place has been constantly watched, but he
+hasn’t been near it since that first day.”
+</p>
+
+<p>
+“I’m afraid,” sighed Jane despondently, “I betrayed the fact that we were
+watching them to the nephew. He overheard me talking to Carter about the ‘fifth
+book,’ and of course he knew what it meant. I’m certain the old man is still
+reporting about our transports. Every day I can hear some one telephoning to
+him. He waits for the message, and then he goes out.”
+</p>
+
+<p>
+“He certainly is expert in eluding shadowers,” admitted Dean. “Every day he has
+been followed, but always he manages to give the operatives the slip. He must
+know he is being watched.”
+</p>
+
+<p>
+“I’m anxious to know what the nephew will say to me to-day,” said Jane. “I know
+he knows what I am doing. He looks at me in such an amusedly superior way every
+time he sees me.”
+</p>
+
+<p>
+“Be careful about trying to pump him,” cautioned Dean. “He strikes me as by far
+the more intelligent of the two. It would not surprise me in the least if he
+were not old Hoff’s nephew at all, but really his superior, sent over
+especially by Wilhelmstrasse to take charge of the plotters. He doesn’t in the
+least resemble old Hoff.”
+</p>
+
+<p>
+“No indeed, he doesn’t,” admitted Jane. “He certainly is clever, too. We
+haven’t learned a single thing that incriminates him, have we?”
+</p>
+
+<p>
+“Nothing definite, yet everything taken together looks damaging enough. Here is
+a young German of military age and appearance, who arrived from Sweden just
+before we went into the war. He has plenty of money and spends his time idling
+about New York, in frequent communication with at least one navy officer. He
+selects a home overlooking the river from which our soldiers are departing for
+France. You yourself saw him pursuing K-19—the other K-19—who a few hours
+afterward was found murdered.”
+</p>
+
+<p>
+“Things don’t look right,” Jane agreed, yet a few hours later as she sat
+opposite the young man at tea, she found herself doubting. It seemed
+incredible, impossible, that Frederic Hoff could be a murderer. Her instinctive
+sense of justice forced her to admit that it was hard for her to believe him
+even a spy. He seemed so cultured, so clean, so straightforward, so nice. If
+she had not seen that unforgettable look of hate on his face that night as she
+watched him from the window she could not, she would not have believed evil of
+him.
+</p>
+
+<p>
+The tremor of nervous excitement in which she met him quickly passed, and she
+found herself once more chatting intimately with him and enjoying it. He talked
+well on practically all subjects, showing reserve only when she tried to draw
+him out about himself. Her previous experiences with the opposite sex had
+taught her that most men’s favorite topic of conversation is themselves, but
+Mr. Hoff appeared to be the exception. Adroitly he baffled all her efforts to
+get him to discuss his family, his achievements, or his past, even when she
+sought to encourage intimacy by telling about her brother who was abroad in
+Pershing’s army.
+</p>
+
+<p>
+“You must let me be your big brother while he is away,” her escort had
+suggested gallantly.
+</p>
+
+<p>
+“All right, brother,” she had challenged him. “I’ll take you on at once. I have
+seats for a matin&eacute;e to-morrow. I’d much rather go with a brother than
+with one of the girls.”
+</p>
+
+<p>
+“I would be delighted,” he answered unsuspectingly, “but unfortunately I have
+an engagement that takes me out of town.”
+</p>
+
+<p>
+“We’ll go next week, then—Wednesday.”
+</p>
+
+<p>
+“A week is too long to wait. Let me take you to a matin&eacute;e on Saturday.”
+</p>
+
+<p>
+Jane hesitated. At times her conscience troubled her not a little. While
+satisfied that the importance of her trust wholly justified her actions, she
+disliked any deception of her family.
+</p>
+
+<p>
+“Wouldn’t it be better,” she parried, “if you came to call on me some evening
+first? You’ve only just met my mother, and I would like you to know Dad, too.”
+</p>
+
+<p>
+“May I?” he cried with manifest pleasure. “How about to-morrow evening?”
+</p>
+
+<p>
+“That’s Wednesday,” she answered slowly. That was the day she and Dean were
+planning to put in a dictograph. She wondered at herself calmly carrying on
+this casual conversation with the man she was planning to betray. Coloring a
+little from the very shame of it, she continued, “How about making it Thursday
+evening?”
+</p>
+
+<p>
+“Delighted,” cried Hoff, “and about Saturday’s matin&eacute;e—what haven’t you
+seen?”
+</p>
+
+<p>
+Glad for the respite of at least twenty-four hours, Jane, as they talked,
+watched his face, his expression, his eyes. Regardless of the things she
+believed about him, he impressed her as honest and sincere. Certainly there was
+no mistaking the fact that his liking for her and his delight in her society
+were wholly genuine. Her heart warned her that it was his intention to press
+their new-formed acquaintance into close intimacy. Was he, she wondered, like
+herself, pretending friendship merely to unmask secrets for his government? No,
+she could not, she would not believe it. She felt sure that his admiration was
+unfeigned. Something told her that quickly his ardor and determination might
+lead her into embarrassing circumstances. He might even ask her to marry him.
+For a moment she was overcome with timidity and tempted to stop short on her
+new career, but there came to her the thought of the brave Americans in the
+trenches, of the soldiers at sea, of the brutal, lurking U-boats, and sternly
+she put aside all personal considerations.
+</p>
+
+<p>
+“You spoke of going out of town,” she said when the subject of the
+matin&eacute;e had been disposed of. “Don’t you find train travel rather
+disagreeable these days?”
+</p>
+
+<p>
+“Fortunately I’m motoring.”
+</p>
+
+<p>
+“That will be nice, if you don’t have to travel too far.”
+</p>
+
+<p>
+“It is quite a distance for one day, but I am used to it. I make the trip
+often.”
+</p>
+
+<p>
+Feeling that at least she had learned something, Jane rose to go. She knew that
+both the Hoffs would be out of the way to-morrow. The inference from his last
+remark was that they were going to the same place they had gone on previous
+Wednesdays. That was something to report to Mr. Fleck.
+</p>
+
+<p>
+“My car is outside,” she said as they rose. “Can’t I take you home?”
+</p>
+
+<p>
+“Sorry,” said her host, “but I am dining here to-night. Lieutenant Kramer is to
+join me.”
+</p>
+
+<p>
+“Remember me to him,” she said as he escorted her to the automobile, driven by
+Dean.
+</p>
+
+<p>
+A block away from the hotel she tapped on the glass, and as Dean brought the
+car to a stop she climbed into the seat beside him. Only a week ago she would
+have criticized any girl who rode beside the chauffeur. In fact she had spoken
+disapprovingly of a girl in her own set who made a habit of doing it, but now
+she never gave it a thought. Many things in her life seemed to have assumed new
+aspects and values since she had entered on a career of useful activity. In her
+was rapidly developing something of her father’s ability and directness. As she
+wanted to talk confidentially with Dean, she went the easiest way about it,
+entirely regardless of appearances.
+</p>
+
+<p>
+“Apparently you carried it off well,” he commented.
+</p>
+
+<p>
+“I hope so,” she answered, coloring a little. “They’re making their usual
+Wednesday motor trip.”
+</p>
+
+<p>
+“He did not tell you their destination?”
+</p>
+
+<p>
+“No, but Lieutenant Kramer is dining with him to-night at the Biltmore.”
+</p>
+
+<p>
+“Fine. Those things the Chief can take care of. That leaves the way clear for
+us to-morrow afternoon.”
+</p>
+
+<p>
+“What excuse will I make for having you come up to the apartment?”
+</p>
+
+<p>
+“You want me to change some pictures. That will account for the wire if I’m
+caught.”
+</p>
+
+<p>
+“I hope no one sees you.”
+</p>
+
+<p>
+“Nobody’ll see me but the elevator man, and he’ll think nothing of it.”
+</p>
+
+<p>
+Apparently, too, Dean was right, for the next afternoon he entered the Strong
+apartment carrying a suitcase in which was concealed his apparatus and the
+necessary wire.
+</p>
+
+<p>
+“Hurry,” cried Jane, who was waiting for him. “The Hoffs’ maid has just gone up
+on the roof.”
+</p>
+
+<p>
+“We can safely give her at least a few minutes,” said Dean setting to work to
+make a hole through the wall into the apartment adjoining. Just as he had
+finished making it and had pushed one end of the wire through, the telephone
+bell rang, and Jane in dismay sprang to answer it.
+</p>
+
+<p>
+“Disguise your voice,” warned Dean. “If it is a caller say there is no one
+home.”
+</p>
+
+<p>
+“It was Lieutenant Kramer calling,” said Jane as she returned.
+</p>
+
+<p>
+“Did he recognize your voice?”
+</p>
+
+<p>
+“I don’t think so.”
+</p>
+
+<p>
+“What did he say?”
+</p>
+
+<p>
+“He said to tell Miss Strong that he had called.”
+</p>
+
+<p>
+“Then he didn’t suspect you.”
+</p>
+
+<p>
+“Isn’t there danger, though, that he may come up to the Hoff apartment?”
+</p>
+
+<p>
+Dean sprang to the window and looked out at the street below.
+</p>
+
+<p>
+“No, there he goes up the street. He evidently did not try to see if the Hoffs
+were at home. That’s funny.”
+</p>
+
+<p>
+“Why funny?”
+</p>
+
+<p>
+“It means of course that he, too, knows about those Wednesday trips the Hoffs
+make.”
+</p>
+
+<p>
+Cautiously he opened the door into the public hall. There was no one about.
+Catlike in swiftness and silence he moved to the Hoff door and inserted his
+new-made key. It worked perfectly.
+</p>
+
+<p>
+“Now,” he whispered to Jane, “to the roof—quick. I must not be taken by
+surprise. Give me at least ten minutes more—fifteen if you can.”
+</p>
+
+<p>
+Quickly he passed inside, closing the door behind him all but a barely
+noticeable crack, as Jane rang for the elevator and bade the operator take her
+to the roof. As she emerged there and stood waiting for the elevator to descend
+again, an ornamental lattice screened her from the rest of the roof. Cautiously
+and curiously she peered between the slats, trying to see what the Hoff servant
+was doing at the moment. She decided that she would not reveal her presence
+until the woman made ready to go down-stairs.
+</p>
+
+<p>
+As from behind her screen she scanned the roof she espied old Lena over on the
+side next the river bending over a half-filled basket of clothes, apparently
+putting into the basket some of the freshly dried laundry from the lines
+extending all over the roof. As Jane watched her the old woman straightened
+herself up and cast a cautious glance about. Apparently satisfied that she was
+alone she whipped out something from a pocket in her apron and turned in the
+direction of the river.
+</p>
+
+<p>
+Jane gasped in amazement, a thrill of excitement sweeping over her at this new
+discovery. It was plain that the old servant was studying the transports in the
+river below through a pair of powerful field glasses. Curiously Jane observed
+her, wondering what she was trying to ascertain, wondering if through the
+glasses she was able to identify the battleships and other boats. Old Lena’s
+next move was still more puzzling. Hastily dropping her glasses into the basket
+she began to hang again on the line some of the clothes. They were
+handkerchiefs, Jane noted interestedly, one large red one, and the rest white,
+some large, some small, a whole long row of nothing but handkerchiefs.
+</p>
+
+<p>
+All at once it came to Jane what it must mean. The arrangement of the
+handkerchiefs must be some sort of a code. She studied the way they were
+placed, committing the order to memory. “Red—two large—one small—one large—one
+small.” Of course it was a code, a signal to some one aboard one of the ships.
+</p>
+
+<p>
+The line of handkerchiefs completed old Lena once more took up her glasses,
+first looking around as before to see if any one were on the roof. How Jane
+wished that she, too, could see the ships from where she stood. Was some
+traitor in the navy wigwagging to the old woman? She was tempted to spring
+forward and seize her and stop this dastardly signalling, but she remembered
+her duty. She was there to see that Dean was not surprised by old Lena’s
+return. So long as the woman kept signalling he was safe.
+</p>
+
+<p>
+Once more the laundress dropped her glasses and began frantically rearranging
+the handkerchiefs. Again Jane noted their order—red—two small—one large—three
+small—two large. Again the laundress resorted to the glasses, and at last,
+apparently satisfied, began taking down the rest of the laundry and making
+ready to leave the roof. Trying to act as if she had just arrived, Jane stepped
+boldly forward.
+</p>
+
+<p>
+“I wonder,” she said approaching the woman, “if you can tell me where I can
+find a good laundress.”
+</p>
+
+<p>
+“<i>Nicht versteh</i>” said old Lena, eyeing her suspiciously and hostilely,
+and at the same time attempting to pass her with the basket of clothes.
+</p>
+
+<p>
+Deliberately blocking the way, Jane repeated her question, this time in German,
+feeling thankful that her language studies at school were not wholly forgotten
+and that they had included such practical phrases as those required to hire and
+discharge maids and complain about the quality of their work.
+</p>
+
+<p>
+“I know no one,” the old woman answered her, this time in English.
+</p>
+
+<p>
+Jane breathed fast with excitement. The laundress’ slip of the tongue, after
+denying that she understood, was evidence in itself of her deliberate
+duplicity. Realizing her mistake, the old woman now sullenly refused to answer
+any questions, merely shaking her head and trying to dodge past and escape.
+</p>
+
+<p>
+To prolong the questioning, Jane felt, would be only to arouse suspicion, and
+reluctantly she allowed old Lena to precede her to the elevator, anticipating
+her, however, in ringing the bell, pressing the button four times as Dean had
+directed. As they descended together she was almost in a panic. How long had
+she kept the laundress on the roof? She really had no idea. She had been so
+absorbed in her new discovery she had given no thought to the time. For all she
+knew she might have been there only five minutes. Had Dean had time to finish
+his work?
+</p>
+
+<p>
+Almost frenzied with anxiety, wondering if it were too soon, she moved forward
+in the car so as to obstruct old Lena’s view through the door as it opened. One
+glance showed her the Hoff door now tightly closed, and she thought she heard
+the door of her own apartment just closing. Suddenly she remembered that she
+had gone up on the roof without a key. It would be a pretty pass if Dean were
+still in the Hoff apartment and she couldn’t get into her own.
+</p>
+
+<p>
+All in a tremble she pressed the button of her own door, waiting, however, to
+see that the laundress was out of the hall. It was Dean who opened the door,
+and she all but fainted in his arms as she saw that he was back in safety.
+</p>
+
+<p>
+“It’s done,” he cried gleefully, as he caught her and drew her within, closing
+the door carefully behind her. “I just finished my work as you came down.”
+</p>
+
+<p>
+Great drops of perspiration still stood on his forehead and he was breathing
+rapidly.
+</p>
+
+<p>
+“Why, what’s the matter?” he cried, noticing for the first time Jane’s
+perturbation. “Was it too much for you? What happened?”
+</p>
+
+<p>
+“Put this down quick, quick,” gasped Jane, “Red—two large—one small—one
+large—one small—and then—red—two small—one large—three small—two large.”
+</p>
+
+<p>
+Wonderingly he complied, jotting down what she told him in his notebook, and
+turning to ask her what it meant, discovered that she had fainted.
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_VIII"></a>CHAPTER VIII<br/>
+THE LISTENING EAR</h2>
+
+<p>
+“I don’t know what is the matter with Jane,” sighed Mrs. Strong a few days
+after the employment of the new chauffeur.
+</p>
+
+<p>
+“She’s not ill, is she?” responded her husband. “I never saw her looking more
+fit.”
+</p>
+
+<p>
+“She looks all right,” said her mother. “It is the peculiar way she is acting
+that bothers me. She spends hours and hours moping in her room, and then there
+are times when she takes notions of going out and is positively insistent that
+she must have the car.”
+</p>
+
+<p>
+“Maybe she’s in love,” suggested Mr. Strong, resorting to the common masculine
+suspicion.
+</p>
+
+<p>
+“With whom?” retorted his wife indignantly. “I don’t believe there is an
+eligible man under forty in all New York. None of the men are thinking about
+marriage these days. They all want to go to France, even the married ones. I
+believe you’d go yourself if you were a few years younger.”
+</p>
+
+<p>
+“I certainly would,” announced her husband enthusiastically.
+</p>
+
+<p>
+“Jane tells me she is writing a novel,” Mrs. Strong continued, “and that’s why
+she stays in her room so much. I hope she won’t turn out to be literary.”
+</p>
+
+<p>
+“Don’t worry,” advised Mr. Strong. “With all the men off to war you’ll find
+young women doing all kinds of funny things to work off their energy. If a girl
+can’t be husband-hunting, she’s got to be doing something to keep busy. There
+are worse things than trying to write novels. Jane is all right. Let her
+alone.”
+</p>
+
+<p>
+So, even though her mother’s suspicions had been aroused, the girl in the next
+few days managed to spend many hours with her ears glued to the receiver of the
+dictograph without being discovered. In the Hoffs’ apartment Dean had succeeded
+in locating it over the dining-room table, concealed in the chandelier, and in
+Jane’s room the other end rested in the back of a dresser drawer that she
+always carefully locked when absent.
+</p>
+
+<p>
+The novelty of listening for bits of her neighbors’ conversation quickly wore
+off. To sit almost motionless for hours listening, listening intently for every
+sound, hearing occasional words spoken either in too low tones or too far
+distant to make them understandable, to record bits of conversation that
+sounded harmless, yet might have some sinister meaning, became a most laborious
+task. Yet persistently Jane stuck at it. The greater knowledge she gained of
+the plottings of the German agents, the more important and vital she realized
+it was for every clue to be diligently followed in the hope that the trail
+might at last reach the master-spy, whose manifold activities were menacing
+America.
+</p>
+
+<p>
+In general she was disappointed with the results of her listening. To be sure
+they had furnished indisputable evidence of something they already had
+ascertained—that old Hoff, despite being a naturalized American, still was a
+devoted adherent of the ruler of Germany. Nightly as he and his nephew sat down
+to dinner she could hear his gruff, unpleasant voice ceremoniously proposing
+always the same toast:
+</p>
+
+<p>
+“Der Kaiser!”
+</p>
+
+<p>
+Even when the younger Hoff was dining out, as he sometimes did, Jane could hear
+the old man giving the toast, presumably with only the old servant for an
+auditor. That the woman, too, was a spy, as well as servant, Jane had known
+since the day on the roof, but so far neither she nor Dean had been able to
+make anything out of her handkerchief code, though both were sure the messages
+related to the sailings of transports.
+</p>
+
+<p>
+Only once had she heard anything that she deemed really important. One evening,
+as uncle and nephew dined, there had been an acrimonious dispute.
+</p>
+
+<p>
+“Have you it yet?” the uncle had asked in German.
+</p>
+
+<p>
+“Not yet,” Frederic had answered.
+</p>
+
+<p>
+His seemingly simple reply for some reason appeared to have stirred the elder
+man’s wrath. He broke into a volley of curses and epithets, reproaching his
+nephew for his delay. In the rapid medley of oaths and expostulations Jane
+could distinguish only occasional words—“afraid”—“haste”—”all-highest
+importance”—“American swine.” The younger Hoff had appeared to exercise
+marvelous self-control.
+</p>
+
+<p>
+“There is yet time,” he answered calmly.
+</p>
+
+<p>
+“Donnerwetter,” the old man had exclaimed. “There is yet time, you say—and Emil
+the wonder-worker almost ready has. It must be done at once.”
+</p>
+
+<p>
+The outburst over, old Hoff had subsided into inarticulate mutterings,
+evidently busy with his food, leaving Jane to wonder futilely who Emil might
+be, what he meant by the “wonder-worker,” and what particular task had been
+assigned to the nephew that must be performed immediately. She had hastened to
+report this conversation in detail to Chief Fleck, but if he understood what it
+was about he had taken neither Jane nor Thomas Dean into his confidence.
+</p>
+
+<p>
+Other things, too, Jane had learned and reported, which she knew the chief
+appreciated even though he was sparing in his thanks and compliments. She had
+learned through her almost constant listening that Lieutenant Kramer was a
+regular visitor, coming to the Hoff apartment or seeing Frederic Hoff somewhere
+every other day. Unfortunately he was always conducted into one of the inner
+rooms, so that no more of the conversation than the ordinary greetings and
+farewells ever reached Jane’s ears. The mere fact of his coming so regularly to
+the Hoffs convicted him of treachery, in Jane’s mind. What proper business
+could an American naval officer have in the home of two German agents? The
+excuse that Frederic Hoff was a delightful and entertaining friend was entirely
+too flimsy and unsatisfactory.
+</p>
+
+<p>
+Nothing that she had overheard—and within her heart she felt glad that it was
+so—in any way as yet incriminated young Hoff. When she dared to think about it,
+she found herself almost believing, certainly at least wishing, that the nephew
+was not involved in his uncle’s activities. Most of his time, in fact, was
+spent out of the apartment. He frequently went out early in the morning, not
+returning until the early hours of the next morning. The old man, on the
+contrary, always stayed at home until eleven o’clock. At that hour his
+telephone would ring. The telephone was located near the dining room, so Jane
+could easily hear his conversations. Invariably some brief message was given to
+him, a name, which he repeated aloud as if for verification.
+</p>
+
+<p>
+As Jane overheard them she had set them down:
+</p>
+
+<p class="letter">
+Thursday—“Jones.”<br/>
+Friday—“Simpson.”<br/>
+Saturday—“Marks.”<br/>
+Sunday—“Heilwitz.”<br/>
+Monday—“Lilienthal.”<br/>
+Tuesday—“Wheeler.”
+</p>
+
+<p>
+As she sat by the hour listening Jane kept pondering over these names. What
+could they mean? Were they, too, a code of some sort? Always, as soon as this
+word had come to him, old Hoff went out. Could they be, she wondered, passwords
+by which he gained access somewhere to government buildings or places where
+munitions were being made or shipped?
+</p>
+
+<p>
+Meanwhile her acquaintance with Frederic Hoff had been progressing rapidly. As
+she had suggested he had called on her and had been presented to her father,
+and on the next Saturday they had gone to a matin&eacute;e together. She had
+been eager to see what her father thought of him, for Mr. Strong, she knew, was
+regarded as a shrewd judge of men.
+</p>
+
+<p>
+“What does that young Hoff do who was here last night?” her father had asked at
+the breakfast table.
+</p>
+
+<p>
+“He’s in the importing business with his uncle, I think,” she had answered.
+</p>
+
+<p>
+“Where’d you meet him?”
+</p>
+
+<p>
+“He lives in the apartment next door. Lieutenant Kramer introduced him.”
+</p>
+
+<p>
+“He’s German, isn’t he?”
+</p>
+
+<p>
+“Oh, no,” said Jane, almost unconsciously rallying to defend him, “he was born
+in this country.”
+</p>
+
+<p>
+“Well, it’s a German name.”
+</p>
+
+<p>
+“Don’t you like him?”
+</p>
+
+<p>
+“He talks well,” her father said, “and seems to be well-bred.”
+</p>
+
+<p>
+It was with reluctance, too, that Jane admitted to herself that the better
+acquainted she became with Frederic Hoff the more fascinating she found his
+society. She was always expecting that by some word or action he would reveal
+to her his true character. At the matin&eacute;e she had waited anxiously to
+see what he would do when the orchestra played the national anthem. To her
+amazement he was on his feet almost among the first and remained standing in an
+attitude of the utmost respect until the last bar was completed. If he were
+only pretending the r&ocirc;le of a good American, he certainly was a wonderful
+actor. As her admiration for him increased and her interest in him grew she
+found that almost her only antidote was to try to keep thinking of his face as
+she had seen it the night that K-19—the other K-19—had been so mysteriously
+murdered. She kept wondering if Chief Fleck had made any further discoveries
+about the murder and resolved to ask him about it at the first opportunity. She
+therefore was delighted when on Tuesday, as she made her regular report by
+telephone, he asked if she could come to his office that afternoon with Dean to
+discuss some matters of importance. They found Carter already with the chief
+when they arrived.
+</p>
+
+<p>
+“Thanks to your work, Miss Strong, and to Dean’s dictograph,” said the chief,
+“we have made considerable progress. We have learned a lot more about the
+cipher messages.”
+</p>
+
+<p>
+“You have learned it through me,” cried Jane in amazement.
+</p>
+
+<p>
+“Yes,” said the chief, smiling, “from that list of names you reported.”
+</p>
+
+<p>
+“What were they, a cipher, a code?” questioned the girl breathlessly.
+</p>
+
+<p>
+“No, nothing like that. They are merely the names of various innocent and
+unsuspecting booksellers in various parts of the city.”
+</p>
+
+<p>
+“How did you discover that?”
+</p>
+
+<p>
+“In the simplest and easiest way possible. I listed all the names you reported
+and studied them carefully, trying to find their common denominator. They were
+not in the same neighborhood, so it was not locality. They were not all German,
+so it was not racial. I looked them up in the telephone directory, checking up
+the numbers of the telephones of the Jones, the Simpsons, but that gave no
+clue. Then, as I looked through the telephone lists, I discovered that there
+was a bookstore kept by a man of each name. Then I understood. It is a simple
+plan for throwing off shadowers.”
+</p>
+
+<p>
+“You mean that Mr. Hoff goes to a different bookstore each day to leave a code
+message?”
+</p>
+
+<p>
+“That’s it. The spy who gets the messages each morning calls him up by ’phone,
+mentioning just the one word. From that Mr. Hoff knows just where to go,
+concealing the message in a book before agreed upon.”
+</p>
+
+<p>
+“The fifth book,” interrupted Dean.
+</p>
+
+<p>
+“Not always,” explained Fleck. “It depends on whether there are five letters in
+the name telephoned. I have located and copied several more of the messages.”
+</p>
+
+<p>
+“But who gets the messages he leaves? Who takes them away from the bookshops?”
+asked Jane, mindful of her own failure in that respect.
+</p>
+
+<p>
+“It’s a girl, or rather two girls together, though possibly only one of them is
+in the plot. Very likely the other may not know what her companion is doing.”
+</p>
+
+<p>
+“To whom does this girl take them?”
+</p>
+
+<p>
+“That is still a mystery,” said the chief. “We have ascertained who the girl
+is, where she lives. Her actions have been watched and recorded for every hour
+in the twenty-four for the last three days, and yet we don’t know what she does
+with these messages. Carter has a theory—tell us about it, Carter.”
+</p>
+
+<p>
+“In accordance with instructions,” began Carter, as if he was making out a
+report, “I had operatives K-24 and K-11 shadow the party suspected. On two
+different occasions they followed her to a bookstore and back home again. She
+was accompanied on one occasion by her younger sister. Each time she went
+directly home and stopped there, neither she nor her sister coming out again,
+and no person visiting the apartment, but—”
+</p>
+
+<p>
+“Here’s the interesting part,” interrupted Fleck.
+</p>
+
+<p>
+“On both occasions within a couple of blocks of the bookstore she passed a man
+with a dachshund. She did not speak to the man, but each time she stopped to
+pet the dog.”
+</p>
+
+<p>
+“Was it the same man both times?” asked Dean.
+</p>
+
+<p>
+“Apparently not,” replied Carter, “but it may have been the same dog.
+Dachshunds all look alike.”
+</p>
+
+<p>
+“Go on,” said the chief.
+</p>
+
+<p>
+“Now my theory is that that girl was instructed to walk north until she met the
+man with the dog. I’ll bet anything that code message went under the dog’s
+collar. The next time she gets a message I’m going to get that dog.”
+</p>
+
+<p>
+“It seems preposterous,” scoffed Dean.
+</p>
+
+<p>
+“Rather it shows,” said Fleck, “that these spies all suspect they are being
+watched, and that they resort to the most extraordinary methods of
+communication to throw off shadowers. They have used dachshunds before. There’s
+a New England munition plant to which they used to send a messenger each week
+to learn how their plans for strikes and destruction were progressing. They put
+a different man on the job each time to avoid stirring up suspicion. At the
+station there would always be two children playing with a dachshund. The spy
+would simply follow them as if casually, and they would lead him to a
+rendezvous with the local plotters. Now, Miss Strong,” he said, turning to
+Jane, “I brought you down here for two reasons. First, to give you an inkling
+of how important your task is, and second, to ask you to undertake still
+another task for us. Are you still willing to help?”
+</p>
+
+<p>
+“More than ever,” said the girl firmly.
+</p>
+
+<p>
+“The one disappointment is that we are getting no evidence whatever to involve
+or incriminate young Hoff. To-morrow, while he and his uncle are away on their
+usual auto trip, I am going to have the apartment thoroughly searched.”
+</p>
+
+<p>
+Jane’s face blanched. She recalled what a strain it had been on her nerves the
+day she watched on the roof while Dean installed the dictograph. She felt
+hardly equal to the task of ransacking desks and drawers.
+</p>
+
+<p>
+“There will be no one at home but the old servant. She can be easily disposed
+of. It is imperative that the search be made at once. There is evidence that
+what they are planning—evidently some big coup—is nearing the time for its
+execution. We must find it out in order to thwart them. I have got to know what
+old Hoff meant by the ‘wonder-worker!’ He said that it was nearly ready. I
+suspect that it is some new engine of destruction. We must prevent any disaster
+to transports or munition factories, if that’s what they have in mind.”
+</p>
+
+<p>
+“You think it’s a bomb plot?” asked Jane.
+</p>
+
+<p>
+“I don’t know what it is. These empire-mad fools stop at nothing. Nothing is
+sacred to them, women, children, property. With fanatical energy and ability
+they commit murders, resort to arson, use poisons, foment strikes, wreck
+buildings, blow up ships, do anything, attempt anything to serve the Kaiser.
+Karl Boy-ed spent three millions here in America in two months, and Von Papen a
+million more. What for? Ten thousand dollars to one man to start a bomb
+factory, twenty-five thousand dollars to another to blow up a tunnel. Millions
+on millions for German propaganda was raised right here, and it is far from all
+spent yet. We’ve got to find out what the wonder-worker is and destroy it
+before it destroys—God knows what.”
+</p>
+
+<p>
+“Very well,” said Jane with quiet determination, “I’ll search their apartment.”
+</p>
+
+<p>
+“No, not that,” said the chief, “I’ll send some fake inspectors to test the
+electric wiring, and they’ll do the searching. I do not know for sure that the
+Hoffs suspect you of watching them, but I’m taking no chances. It will be just
+as well for you and Dean to be out of the way to-morrow all day, so that you
+will have an alibi. Germany’s secret agents are suspicious of everybody. They
+do not even trust their own people. What I want you and Dean to do is to try to
+follow the Hoffs and see where they go. I don’t want to use the same persons
+twice to trail them as they may get suspicious.”
+</p>
+
+<p>
+“I can easily do that,” said Jane, feeling relieved. “I’ll tell Mother I want
+our car for all day.”
+</p>
+
+<p>
+“No, don’t use your own car. They might recognize it. I’ll provide another one.
+They gave two of my men the slip last week somewhere the other side of
+Tarrytown. Let’s hope they are not so successful this time.”
+</p>
+
+<p>
+“But won’t they recognize me?”
+</p>
+
+<p>
+“Not if you disguise yourself with goggles and a dust coat. Dean can make up,
+too. He had practice enough at college, eh, Dean?”
+</p>
+
+<p>
+Jane turned to look interestedly at Dean, who had the grace to color up. She
+was right then. He was a college man, working in the secret service not for the
+sake of the job but for the sake of his country.
+</p>
+
+<p>
+“Of course I can disguise myself too,” she said enthusiastically, a new zest in
+her work asserting itself, now that she knew her principal co-operator was
+probably in the same social stratum as herself.
+</p>
+
+<p>
+“You can rely on us, Chief,” said Dean, as they left the office together.
+“We’ll run them down.”
+</p>
+
+<p>
+As they emerged into Broadway and turned north to reach the subway at Fulton
+Street, Dean, with a warning “sst,” suddenly caught Jane’s arm and drew her to
+a shop window, where he appeared to be pointing out some goods displayed there.
+As he did so he whispered:
+</p>
+
+<p>
+“Don’t say a word and don’t turn around, but watch the people passing, in this
+mirror here—quick, now, look.”
+</p>
+
+<p>
+Jane, as she was bidden, glanced, at first curiously and then in recognition
+and amazement, at a tall figure reflected in the mirror, as he passed close
+behind her. It was a man in uniform. Regardless of Dean’s warning she turned
+abruptly to stare uncertainly at the military back now a few paces away.
+</p>
+
+<p>
+“Did you recognize him?” cried Dean.
+</p>
+
+<p>
+“It—it looked like Frederic Hoff,” faltered the girl.
+</p>
+
+<p>
+“It was Frederic Hoff,” corrected her companion, “Frederic Hoff in the uniform
+of a British officer, a British cavalry captain!”
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_IX"></a>CHAPTER IX<br/>
+THE PURSUIT</h2>
+
+<p>
+Masked by an enormous pair of motor goggles and further shielded from
+recognition by a cap drawn down almost over his nose, Thomas Dean in a
+basket-rigged motorcycle impatiently sat awaiting the arrival of Jane Strong at
+a corner they had agreed upon the evening before. He had been particularly
+insistent that Jane should be on hand at a quarter before eight. He had learned
+by judicious inquiries that always on Wednesdays—at least on the Wednesdays
+previous—the Hoffs had started off on their mysterious trips at eight sharp.
+His intention was to get away ahead of them and pick them up somewhere outside
+the city limits.
+</p>
+
+<p>
+Jane had promised that she would be on hand promptly. Once more he looked
+impatiently at his watch. It lacked just half a minute of the quarter, but
+there was no sign of his fellow operative. The only person visible in the block
+was a boy strolling carelessly in his direction. With a muttered exclamation of
+annoyance Dean restored his watch to his pocket, debating with himself how long
+he ought to wait and whether or not he had better wait if she did not appear
+soon. Very possibly, he realized, something entirely unforeseen might have
+detained her or have prevented her coming. Perhaps her family had doubted her
+story that she was going off on an all-day motor trip with a friend? Maybe
+their suspicions had been aroused by his having reported sick? He had almost
+decided to go on alone when he observed that the boy he had seen approaching
+was standing beside the motorcycle.
+</p>
+
+<p>
+“Good morning, Thomas,” said the boy, a little doubtfully, as if not quite sure
+that it was he.
+</p>
+
+<p>
+Dean gasped in astonishment. The boy’s voice was the voice of Jane. Laughing
+merrily at his amazement and discomfiture, she climbed into the seat beside
+him, asking:
+</p>
+
+<p>
+“How do you like my disguise?”
+</p>
+
+<p>
+“It’s great,” he cried. “You fooled me completely, and I was expecting you.”
+</p>
+
+<p>
+“When Chief Fleck said I ought to disguise myself for fear that the Hoffs
+already suspected me, I happened to remember these clothes. I had them once for
+a play we gave in school.”
+</p>
+
+<p>
+“But you don’t even walk like a girl.”
+</p>
+
+<p>
+Jane laughed again.
+</p>
+
+<p>
+“I practised that walk for days and days. When I first put on this suit my
+brother hooted at the way I walked. He said no girl ever could learn to walk
+like a boy. I made up my mind I’d show him.”
+</p>
+
+<p>
+“But your hair,” protested Dean, almost anxiously. Even if he was just now
+assuming the humble r&ocirc;le of chauffeur he still was an ardent admirer of
+such hair as Jane’s, long, black and luxurious.
+</p>
+
+<p>
+“Tucked up under my cap,” laughed the girl, “and for fear it might tumble down,
+I brought this along. It’s what the sailor boys call a ‘beanie,’ isn’t it?”
+</p>
+
+<p>
+As she spoke she adjusted over her head a visorlike woolen cap that left only
+her face showing.
+</p>
+
+<p>
+“But your mother—didn’t she wonder about your wearing those clothes?”
+</p>
+
+<p>
+“She was in bed when I left. All she caught was just a glimpse of me in Dad’s
+dust coat, and that came to my ankles. I wore it until I was a block away from
+the house. Will I do?”
+</p>
+
+<p>
+“You can’t change your eyes,” said Dean boldly, that is boldly for a chauffeur,
+but he knew that Jane knew he wasn’t a chauffeur except by choice, so that made
+it all right.
+</p>
+
+<p>
+“I couldn’t well leave them behind. I understood that I was to have a lot of
+use for my eyes to-day.”
+</p>
+
+<p>
+“Yes, indeed, you very likely will.”
+</p>
+
+<p>
+“Do you know I hardly recognized you at first and was almost afraid to speak? I
+had expected to find you in a car. What was the idea of the motorcycle?”
+</p>
+
+<p>
+“It was Chief Fleck’s suggestion. The Hoffs will be motoring. People in a car
+seldom pay any attention to motorcyclists. If we were to follow them in a motor
+they’d surely notice it. Last week they managed to dodge the people the Chief
+assigned to trail them. Maybe as two dusty motorcyclists we’ll have better
+luck.”
+</p>
+
+<p>
+“I hope so. Where do you intend waiting to pick them up?”
+</p>
+
+<p>
+“Getty Square in Yonkers is the best place. Everybody going north goes that
+way. I can be tinkering with the machine while you keep watch for them. They
+will not be apt to suspect a pair of Yonkers motorcyclists. There’s no danger
+of missing them.”
+</p>
+
+<p>
+“Did you tell the Chief about seeing Mr. Hoff in that uniform?”
+</p>
+
+<p>
+“Of course. He did not seem even surprised. Some one had reported to him
+already that there was a German going about in British uniform.”
+</p>
+
+<p>
+“What had he heard? What was the man doing?” questioned Jane anxiously. Even
+though she believed Frederic Hoff an alien enemy, even though she was all but
+sure that he was a murderer, she kept finding herself always hoping for
+something in his favor. He seemed far too nice and entertaining to be engaged
+in any nefarious, underhanded, despicable machinations. Yet she had seen him
+masquerading as a British officer. She could not doubt the evidence of her own
+eyes.
+</p>
+
+<p>
+“What happened was this,” continued Dean. “A woman—one of the society lot—was
+driving down Park Avenue day before yesterday morning in her motor. It had been
+raining, and the streets were muddy. At one of the crossings a British officer
+stopped to let the car pass. One of the wheels hit a rut, and his uniform was
+all splashed with mud. He burst into a string of curses—<i>German</i> curses.”
+</p>
+
+<p>
+“He cursed in German?” cried Jane.
+</p>
+
+<p>
+“Sure,” said Dean. “On the impulse of the moment he forgot his r&ocirc;le and
+revealed his true self—an arrogant Prussian officer.”
+</p>
+
+<p>
+“What did the woman do?”
+</p>
+
+<p>
+“Reported him to the first policeman she met, but by that time he had vanished,
+of course.”
+</p>
+
+<p>
+“What did Chief Fleck think about it?”
+</p>
+
+<p>
+“He didn’t seem to take the story seriously.”
+</p>
+
+<p>
+“Do you suppose it could have been Mr. Hoff?”
+</p>
+
+<p>
+“It must have been he, or one of his gang, at any rate. I don’t see why the
+Chief does not order his arrest at once. He is far too dangerous to be at
+large.”
+</p>
+
+<p>
+“There’s no real evidence against him yet,” protested Jane, “not against the
+young man, at least.”
+</p>
+
+<p>
+“Didn’t we both see him in British uniform?”
+</p>
+
+<p>
+“Yes,” admitted the girl.
+</p>
+
+<p>
+“Well, that’s proof, isn’t it? A man with a German name in British uniform in
+wartime can’t be up to any good.”
+</p>
+
+<p>
+“Still we have no actual evidence against him. We don’t know what he was
+doing.”
+</p>
+
+<p>
+“I’d arrest him then for murder and get the evidence that he is a spy
+afterward. It would be easy to fasten the murder of K-19 on him. There’s no
+doubt that he did that.”
+</p>
+
+<p>
+“Has a witness been found?” asked Jane with a quick catch of the breath.
+Somehow she never had been able to persuade herself that the man next door,
+whatever else he might be, had really committed that brutal murder.
+</p>
+
+<p>
+“No, there’s no actual witness, but it could be proved by circumstantial
+evidence. K-19, the man whose work you took up, had instructions to shadow
+young Hoff to his home. At two in the morning he relieved another operative. At
+three you yourself saw him shadowing Hoff.”
+</p>
+
+<p>
+“I saw two men on the sidewalk,” corrected Jane. “One of them was Frederic
+Hoff. I did not see the other distinctly enough to identify him. I saw no
+murder. I merely saw the two of them run around the corner.”
+</p>
+
+<p>
+“Look here,” said Dean sharply, not wholly succeeding in suppressing a note of
+jealousy in his tones, “I believe you are trying to shield Frederic Hoff. What
+is he to you? Has he won you over to his side?”
+</p>
+
+<p>
+“You’ve no right to say such things to me,” cried Jane, nevertheless coloring
+furiously. “I’ve seen the man only three or four times. I am working just as
+hard as you are to prove that he is a German spy, if he is one. I am only
+trying to be fair. I know nothing that convicts him of murder. Any testimony I
+could give would not prove a single thing.”
+</p>
+
+<p>
+“Certainly not, if that’s the way you feel about it,” snapped Dean.
+</p>
+
+<p>
+After that they rode along together in silence, each busy with thoughts of
+their own. Dean was cursing himself for having let his enthusiasm to be of
+service to his government lead him into such circumstances. He felt that his
+chauffeur’s position handicapped him in his relations with Jane, to whom he had
+been strongly attracted from the beginning. The son of a distinguished American
+diplomat, he had been educated for the most part in Europe. Friends of his
+father, when he had offered his services to the government, had convinced him
+that his knowledge of German and French would make him most useful in the
+secret service. Reluctantly he had consented to take up the work, and as he had
+gone further and further into it and had realized the vast machinery for
+surreptitious observation and dangerous activity that the German agents had
+secretly planted in the United States, he had become fascinated with his
+occupation—that is, until he met Jane Strong.
+</p>
+
+<p>
+His association with her under present circumstances was fast becoming
+unbearable. Even though he was aware that she knew he was no ordinary
+chauffeur, he loathed the necessity of having to wear his mask in the presence
+of her family. He wanted to be free to come to see her, to send her flowers and
+to go about with her. For him to take any advantage of their present intimate
+relations to court her seemed to him little short of a betrayal of his
+government, yet at times it was all he could do to keep from telling her that
+he adored her. Love’s sharp instincts, too, had made him realize that Jane was
+already beginning to be attracted by the handsome young German whom they were
+seeking to entrap, and the knowledge of this fact filled him with helpless rage
+and jealousy.
+</p>
+
+<p>
+Jane, too, angered and insulted at first by Dean’s outburst, had been
+endeavoring to analyze her own conduct. Candor reluctantly compelled her to
+admit that each time she met Frederic Hoff she had found herself coming more
+and more under his spell. He had a wonderful personality, talked entertainingly
+and ever exhibited an innate gallantry toward women in general, and herself in
+particular, which Jane had found delightfully interesting. Though she had
+undertaken wholeheartedly to try to get evidence against him, she was forced to
+admit to herself now that she was secretly delighted that there had been
+nothing damaging found as yet, so far as he was concerned, beyond the one fact
+that he had been in British uniform.
+</p>
+
+<p>
+In vain she marshalled the circumstances about him, trying to make herself hate
+him. He was a German, she told herself. He was an enemy of her country. He
+lived with a man who had been proved to be a spy. He surreptitiously associated
+with American naval officers. The dictograph told her that nightly his uncle
+and he in the seclusion of their home toasted America’s arch enemy, the German
+Kaiser. More than likely, too, her reason told her, he was a murderer. She
+ought to hate, to loathe, to despise him, and yet she didn’t. She liked him.
+Whenever he approached she could feel her heart beating faster. She looked
+forward after each meeting with him to the time when she would see him again.
+What, she wondered, could be the matter with her? Assuredly she was a good
+patriotic American girl. Why couldn’t she hate Frederic Hoff as she knew he
+ought to be hated?
+</p>
+
+<p>
+She was still puzzling over her unruly heart when they reached Getty Square,
+and Dean brought the motorcycle to a stop in one of the side streets
+overlooking Broadway. Dismounting, he looked at his watch and made a pretense
+of tinkering with the engine, while Jane kept a sharp lookout on the main
+thoroughfare, by which they expected the Hoffs to approach. Ten minutes, twenty
+minutes, more than half an hour they waited, anxiously scanning each car as it
+passed.
+</p>
+
+<p>
+“I can’t understand it,” said Dean. “They should have been here at least twenty
+minutes ago. I am going to ’phone Carter. He will know what time they started.”
+</p>
+
+<p>
+He had hardly entered an adjacent shop before Jane, still keeping watch, saw
+the Hoffs’ car flash by, going rapidly north. Quickly she sprang out and ran
+into the store. Dean saw her coming and left the telephone booth, his finger on
+his lips in a warning gesture.
+</p>
+
+<p>
+“Don’t bother to ’phone,” cried the girl, misunderstanding his meaning—and
+thinking only that he was trying to prevent her naming the Hoffs. “Come, let’s
+get started.”
+</p>
+
+<p>
+Without speaking he hurried from the store and got the motorcycle under way.
+</p>
+
+<p>
+“Have they passed?” he whispered then.
+</p>
+
+<p>
+“Just a moment ago.”
+</p>
+
+<p>
+Silently he gathered up speed, racing in the direction the Hoffs’ car had gone,
+not addressing her again until perhaps two miles from Getty Square they caught
+up with it close enough to identify the occupants, whereupon he slowed down and
+followed at a more discreet interval.
+</p>
+
+<p>
+“Be careful about speaking to me when there’s any one about,” he warned Jane,
+almost crossly. “Those clothes make you look like a boy, and your walk is all
+right, but your voice gives you away. Did you see that clerk in the store look
+at you when you spoke to me? I tried to warn you to say nothing.”
+</p>
+
+<p>
+“I’ll be careful hereafter,” said Jane humbly, still depressed by her recent
+estimate of herself. “I forgot about my voice.”
+</p>
+
+<p>
+Mile after mile they kept up the pursuit without further exchange of
+conversation. As they passed through various towns along the road Dean
+purposely lagged behind for fear of attracting attention, but always on the
+outskirts he raced until he caught up close enough again to the car to identify
+it, then let his motorcycle lag back again. Thus far the Hoffs had given no
+indication of any intention to leave the main road.
+</p>
+
+<p>
+As the cyclists, far behind, came down a long winding hill on which they had
+managed to catch occasional glimpses of their quarry, Dean, with a muttered
+exclamation, put on a sudden burst of speed. At a rise in the road he had seen
+the Hoffs’ car swing sharply to the left. Furiously he negotiated the rest of
+the hill, arriving at the base just in time to see them boarding a little ferry
+the other side of the railroad tracks. While he and Jane were still five
+hundred yards away the ferryboat, with a warning toot, slipped slowly out into
+the Hudson.
+</p>
+
+<p>
+In blank despair they turned to face each other. The situation seemed hopeless.
+They dared not shout or try to detain the boat. That surely would betray to the
+Hoffs that they were being followed. Despondently Dean clambered off the
+motorcycle and crossed to read a placard on the ferryhouse.
+</p>
+
+<p>
+“There’s not another boat for half an hour,” he said when he returned. “They
+have gained that much on us.”
+</p>
+
+<p>
+“Perhaps we can pick up their trail on the other side of the river,” suggested
+Jane. “There are not nearly so many cars passing as there would be in the
+city.”
+</p>
+
+<p>
+“We can only try,” said Dean gloomily.
+</p>
+
+<p>
+“At least we know where to pick up their trail the next time.”
+</p>
+
+<p>
+“Damn them,” cried Dean, “I believe they suspect that they may be followed and
+time their arrival here so as to be the last aboard the ferryboat. That shuts
+off pursuit effectually. They make this trip every week. I wouldn’t be
+surprised if they have not fixed it with the ferry people to pull out as soon
+as they arrive. A two-dollar bill might do the trick. I’d give five thousand
+right now if we were on the other side of the river. It’s the first time—the
+only time I’ve ever failed the Chief.”
+</p>
+
+<p>
+“Never mind,” said Jane consolingly, “why can’t we be waiting for them at the
+other side next week when they come up here? They’re not apt to suspect
+motorcyclists they meet up here with having followed them.”
+</p>
+
+<p>
+“Perhaps next week will be too late.”
+</p>
+
+<p>
+“I wonder where they are headed for,” said the girl, looking across at the
+rapidly receding boat. “Why, look! What are those buildings over there?”
+</p>
+
+<p>
+“That’s West Point,” Dean exclaimed, noting for the first time where they were.
+</p>
+
+<p>
+“West Point!” she echoed in amazement.
+</p>
+
+<p>
+What mission could the Hoffs have that would take them to the United States
+Government military school was the question that perplexed them both. Could it
+be that the web of treachery and destruction the Kaiser’s busy agents were
+weaving had its deadly strands fastened even here—at West Point?
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_X"></a>CHAPTER X<br/>
+CARTER’S DISCOVERY</h2>
+
+<p>
+“It’s the young man I’m after,” said Chief Fleck. “We have the goods on old
+Hoff, but we have nothing incriminating against Frederic yet. The very fact
+that he holds aloof from his uncle’s activities makes me think he is engaged in
+more important work. He’s just the type the Germans would select as a
+director.”
+</p>
+
+<p>
+“That’s right,” said Carter despondently. “There’s nothing except the fact that
+Dean and the girl think they saw him in British uniform. Why didn’t they follow
+and make sure?”
+</p>
+
+<p>
+“They tried to,” said the chief, “but he gave them the slip. I’m inclined to
+believe they were mistaken. More than likely it was a chance resemblance. Lots
+of Britishers of the Anglo-Saxon strain look much like Germans, and a uniform
+makes a big difference in a man’s appearance. I’m afraid there’s nothing in
+that.”
+</p>
+
+<p>
+“But both saw the man—Dean and Miss Strong,” protested Carter.
+</p>
+
+<p>
+“The trouble is,” observed Fleck, “that Dean is getting infatuated with the
+girl. A young man in love is not a keen observer. Anything she thinks she has
+seen he’ll be ready to swear to. I hope the girl keeps her head. Lovers don’t
+make good detectives.”
+</p>
+
+<p>
+“I have watched them together,” said Carter. “I’ll admit he’s struck on her,
+but I don’t think she cares a rap for him. She’s too keenly interested in
+Frederic Hoff.”
+</p>
+
+<p>
+“What do you mean by that?” asked the chief sharply.
+</p>
+
+<p>
+“You can depend on her all right. She’s patriotic through and through. She’s
+the kind that would do her duty, no matter what it cost her. All I meant is
+that Hoff’s the type that interests women. He’s got a way about him. The fact
+that he’s a spy, in peril most of the time, gives him a sort of halo. I never
+knew a daring young criminal yet that didn’t have some woman, and often several
+of them, ready to go the limit for him. All the same, I’m sure we can trust
+Miss Strong.”
+</p>
+
+<p>
+“We’ve got to,” growled Fleck, “for the present at any rate. Is everything
+fixed for the search this afternoon? What have you done to get the
+superintendent out of the way? He’s not to be trusted. His name is Hauser.”
+</p>
+
+<p>
+“I’ve got him fixed. Jimmy Golden, my nephew, who has helped us in a couple of
+cases, is a lawyer. He has telephoned to Hauser to come to his office this
+afternoon.”
+</p>
+
+<p>
+“Suppose he doesn’t go?”
+</p>
+
+<p>
+“He’ll go all right. Jimmy ’phoned him that it was about a legacy. That’s sure
+bait. Jimmy will make Hauser wait an hour, then keep him talking half an hour
+longer. That will give us plenty of time.”
+</p>
+
+<p>
+“Then there’s the woman—the servant, Lena Kraus.”
+</p>
+
+<p>
+“She goes to the roof every Wednesday while the Hoffs are away to signal. Other
+days they apparently do the signalling themselves in some way we haven’t caught
+on to yet. She always goes up about three o’clock and—”
+</p>
+
+<p>
+“Suppose she comes down unexpectedly and catches you? We can’t have that
+happen. That would put them on their guard.”
+</p>
+
+<p>
+“She won’t surprise us. I’ve got a trick up my sleeve for preventing that.”
+</p>
+
+<p>
+“Go to it, then,” said the chief, and Carter went on his way rejoicing.
+</p>
+
+<p>
+Ever since he had been informed that the search of the Hoffs’ apartment was to
+be intrusted to him Carter had been in a state of exuberant delight. He fairly
+revelled in jobs that required a disguise and he welcomed the opportunity it
+gave him and his assistants to don the uniform of employees of the electric
+light company. He even made a point of arriving that afternoon at the apartment
+house in the company’s repair wagon, the vehicle having been procured through
+Fleck’s assistance.
+</p>
+
+<p>
+“There’s a dangerous short circuit somewhere in the house,” he announced to the
+superintendent’s wife.
+</p>
+
+<p>
+“My husband isn’t here,” she answered unsuspectingly. “Do you know where the
+switch-boards are?”
+</p>
+
+<p>
+“We can find them,” said Carter. “We’ll start at the top floor and work down.”
+</p>
+
+<p>
+Always thorough in his methods of camouflage he actually did go through several
+apartments, making a pretense of inspecting switch-boards and wiring, all the
+while keeping watch for the time when old Lena went to the roof. The moment she
+had entered the elevator to ascend with her basket of linen, Carter and his
+aides were at the Hoff door. Equipped with the key Dean had manufactured they
+had no difficulty in entering.
+</p>
+
+<p>
+“Bob,” said Carter to one of his men, “we haven’t much time, and there’s a lot
+to be done. You take the servant’s room and the kitchen, and you, Williams,
+take the old man’s quarters. I’ll take care of the young man’s bedroom, and
+we’ll tackle the living room and dining room later.”
+</p>
+
+<p>
+Thoroughly experienced in this sort of work all three of them set at once to
+their tasks. Carter, standing for a moment in the doorway, surveyed Frederic
+Hoff’s quarters, taking in all the details of the furnishings. Both the sitting
+room and the bedroom adjoining were equipped in military simplicity, with
+hardly an extra article of furniture or adornment, chairs, tables, everything
+of the plainest sort. Moving first into the bedroom, Carter quickly
+investigated pillows and mattress, but in neither place did he find what he
+sought, evidence of a secret hiding place. He rummaged for a while through the
+drawers of two tables, carefully restoring the contents, but discovering
+nothing that aroused his suspicions. The books lying about on the tables and on
+shelves he examined one by one, noting their titles, examining their bindings
+for hidden pockets, holding them up by their backs and shaking the leaves.
+There was nothing there. Lifting the rugs and moving the furniture about he
+made a careful survey of the flooring, seeking to find some panel that might
+conceal a hiding place. Once or twice in corners he went so far as to make
+soundings but apparently the whole floor was intact. His search in the bath
+room was equally profitless, and at last he turned to the clothes press. As he
+opened the door an exclamation of amazement burst from his lips.
+</p>
+
+<p>
+There, concealed behind some other suits, was the complete outfit of a British
+cavalry captain.
+</p>
+
+<p>
+“That’s one on the Chief,” he said to himself. “It must have been Hoff that
+Dean and Miss Strong saw. I wonder where he got it?”
+</p>
+
+<p>
+With a grim smile of satisfaction he devoted himself to going carefully through
+all the pockets and over all the seams of the clothing in the closet. He even
+felt into the toe of the shoes and examined the soles. There was nothing to be
+found anywhere, but he felt satisfied. The uniform in itself was to his mind
+damning proof of the young man’s occupation.
+</p>
+
+<p>
+No explanation that could be given by a young man of German name, even though
+he was American-born, or had an American birth certificate, could possibly
+account for his having a British uniform. It was prima facie evidence that
+Frederic Hoff was a spy. What puzzled Carter most was how Hoff managed to
+smuggle the uniform in and out of the apartment without being observed. For
+more than two weeks now every parcel that had arrived at the house of the Hoffs
+had been searched before it was delivered. The house had been constantly under
+the strictest surveillance. It was out of the question for him to have worn the
+uniform in or out as it could not be easily concealed under other clothing.
+</p>
+
+<p>
+“There’s somebody else in this place in league with the Hoffs,” he muttered to
+himself. “I wonder who it can be.”
+</p>
+
+<p>
+He looked at his watch. The old servant had been out now nearly half an hour.
+She was likely to return at any moment. He must work quickly. Swiftly he went
+through the dresser drawers but without satisfactory result. There was no time
+for him to do more. He hastened into the living room and summoned his aides.
+</p>
+
+<p>
+“Find anything, Bob?” he asked.
+</p>
+
+<p>
+“Not a thing.”
+</p>
+
+<p>
+“Beat it up to the roof,” he directed. “Have you those field glasses with you?”
+</p>
+
+<p>
+“Sure,” replied the operative, “and the handkerchiefs, too.”
+</p>
+
+<p>
+“All right. Get up there before she starts down. Begin putting up handkerchiefs
+and appear to be watching the river. That will mix her up so she will not know
+what to do. She will not dare to leave the roof while you are there. When we’re
+through I’ll send the elevator man up for you with the message that we have
+found the short circuit.”
+</p>
+
+<p>
+He turned to the other operative.
+</p>
+
+<p>
+“Find anything, Williams?”
+</p>
+
+<p>
+“Only this.”
+</p>
+
+<p>
+Carter’s face brightened as his assistant held out to him two copies of an
+afternoon newspaper. In each of them a square was missing where something had
+been cut out.
+</p>
+
+<p>
+“I found them in the waste-paper basket by the old man’s desk,” the man
+explained, “and there was some ashes there—ashes of paper—as if he had burned
+up something. Maybe it was what he cut out of those papers. I could not tell.”
+</p>
+
+<p>
+“We’ve got to get copies of those papers at once and see what it was. Come on,
+I’m going to take them to the Chief. We can get the papers on the way down.”
+</p>
+
+<p>
+Calling the other operative from the roof, before he even had had time to
+attract the attention of Lena Kraus by his activities, they hastened back to
+the office, where Fleck and Carter together scanned the two papers from which
+the clippings had been taken.
+</p>
+
+<p>
+“Why,” said Carter disappointedly, “it is just a couple of advertisements he
+cut out—advertisements for a tooth paste. There’s nothing in that.”
+</p>
+
+<p>
+“Don’t be too sure,” warned Fleck. “If a man cuts out one tooth-paste
+advertisement, the natural presumption would be that he wished to remind
+himself to buy some. When he cuts out two, he must have some special interest
+in that particular tooth paste. We’ll have to find out what his interest is.”
+</p>
+
+<p>
+“Maybe he owns it,” suggested Carter.
+</p>
+
+<p>
+“Perhaps,” said Fleck, as he began studying the advertisements, “but it would
+not surprise me if these advertisements contained some sort of code messages.”
+</p>
+
+<p>
+“Messages in advertisements,” exclaimed Carter incredulously.
+</p>
+
+<p>
+“Why not? The Germans have hundreds of spies at work here in this city and all
+over the country. What would be an easier method of communicating orders to
+them than by code messages concealed in advertising. They have done it before.
+When the German armies got into France they found their way placarded in
+advance with much useful information in harmless looking posters advertising a
+certain brand of chocolate. I’d be willing to bet that every one of these
+advertisements carries a code message. I’ve noticed that these advertisements,
+all peculiarly worded, have been running for some time. I never thought of
+hooking them up with German propaganda, but, see, it is a German firm that
+inserts them.”
+</p>
+
+<p>
+Carefully he cut out the two advertisements and laid them side by side on his
+desk. Turning to Carter he said:
+</p>
+
+<p>
+“Go at once to see Mr. Sprague, the publisher of this paper. Get him to give
+you a copy of each paper that has contained an advertisement of this sort in
+the last six months. Find out what agency places the advertising. Tell him I
+want to know. He’ll understand. We have worked together before.”
+</p>
+
+<p>
+Alone in his office, Fleck bent with wrinkled brow over the first of the two
+advertisements, which read:
+</p>
+
+<p class="center">
+REMEMBER
+</p>
+
+<p class="letter">
+Please, that our new paste, DENTO,<br/>
+will stop decay of your teeth. Sound<br/>
+teeth are passports to good health and<br/>
+comfort. Now, no business man can<br/>
+risk ill health. It is closely allied with<br/>
+failure. The teeth if not watched are<br/>
+quickly gone.
+</p>
+
+<p class="center">
+USE DENTO
+</p>
+
+<p class="letter">
+A genuine, safe, pleasing paste for the<br/>
+teeth, prepared and sold only by the<br/>
+Auer Dental Company, New York.
+</p>
+
+<p>
+He tried all the methods of solving cipher letters that he thought of. He drew
+diagonals this way and that across the advertisement. He tried reading it
+backward. He tried reading every other word, every third word, both backward
+and forward. Nothing that he did revealed any combination of words that made
+sense.
+</p>
+
+<p>
+“Passports,” he muttered to himself, “that’s it. If there is a message there it
+must be something about passports.”
+</p>
+
+<p>
+In despair he turned to the other advertisement. It read:
+</p>
+
+<p class="center">
+DON’T
+</p>
+
+<p class="letter">
+Forget it is imperative for one and all to<br/>
+use cleansing agents on teeth that leave<br/>
+no bad results.<br/>
+<br/>
+“Ship more of that wonder-working<br/>
+paste immediately. Workers, employers,<br/>
+wives, all ready to commend it. Friday’s<br/>
+supply gone,” writes a druggist to whom<br/>
+a big shipment was made last week.
+</p>
+
+<p class="center">
+USE DENTO
+</p>
+
+<p class="letter">
+A genuine, safe, pleasing paste for the<br/>
+teeth, prepared and sold only by the<br/>
+Auer Dental Company, New York.
+</p>
+
+<p>
+Fleck’s eyes gleamed with satisfaction as he read this advertisement and caught
+the phrase “wonder-working.” He felt sure now that he was on the right track.
+He recalled that Jane Strong over the dictograph had heard old Hoff speak of
+something that he called the “wonder-worker.” As soon as Carter returned with
+the other advertisements that had been appearing he felt positive that he would
+be able to unravel the cipher. Two words he was sure of—“passports” and
+“wonder-working.” One footprint does not lead anywhere, but two do, and given
+three footprints, a pathway is indicated.
+</p>
+
+<p>
+His telephone rang sharply. He turned to answer it, suspecting it must be
+Carter with some message about the papers he had sent for.
+</p>
+
+<p>
+“Hello,” he called.
+</p>
+
+<p>
+“Hello,” came a faint voice, as if the speaker were using long distance, and
+had a bad connection, “is this Fleck?”
+</p>
+
+<p>
+“Yes, Fleck,” he answered, “who is this?”
+</p>
+
+<p>
+“Dean speaking,” came the voice faintly.
+</p>
+
+<p>
+“Dean,” cried Fleck, excitedly, “yes, yes. What is it, Dean?”
+</p>
+
+<p>
+He had not expected to hear any results from the expedition that Dean and Jane
+Strong had undertaken until late in the afternoon after the Hoffs returned. The
+fact that Dean was calling him up now would seem to indicate that something of
+importance had happened.
+</p>
+
+<p>
+“I’m telephoning from a doctor’s house near Nyack,” said Dean.
+</p>
+
+<p>
+“What’s that? Speak louder.”
+</p>
+
+<p>
+“I’m here in Doctor Spencer’s office near Nyack with a broken arm,” Dean
+continued. “We’ve had an accident. Somebody’s auto smashed into us, I guess.”
+</p>
+
+<p>
+“Miss Strong? Where is she? Is she hurt?” asked the chief anxiously.
+</p>
+
+<p>
+“I don’t know. She has vanished.”
+</p>
+
+<p>
+Jane Strong vanished! The chief’s figure became suddenly tensed. That it was
+more than a mere automobile accident he felt certain now. Shadowing the Hoffs
+was an occupation that seemed unusually perilous. There flashed into his mind
+the fate of K-19—murdered almost at the Hoffs’ door. And now two more of his
+operatives, one disabled and the other mysteriously missing.
+</p>
+
+<p>
+“Quick,” he said over the ’phone. “Tell me briefly just what happened. Speak as
+loudly as you can.”
+</p>
+
+<p>
+“We got half an hour behind at the West Point Ferry,” Dean’s voice went on,
+still weak and low as if he were speaking with difficulty. “We had some trouble
+getting started on the trail again but finally succeeded. We were dashing along
+about ten or twelve miles south of West Point when an automobile coming out of
+a cross road crashed right into us. It must have knocked me unconscious. I
+didn’t remember anything more till I found myself here. I came to as the doctor
+was setting my arm. I ’phoned as soon as they would let me.”
+</p>
+
+<p>
+“Who brought you there?”
+</p>
+
+<p>
+“I don’t know. All they know here was that some couple in an automobile left me
+here. They said they passed just after an auto hit my motorcycle. They said the
+auto didn’t stop.”
+</p>
+
+<p>
+“And Miss Strong—did they say anything about her?”
+</p>
+
+<p>
+“Not a word. The people here were under the impression I was riding alone.”
+</p>
+
+<p>
+“All right,” said the chief. “I’ll get some one up there at once to look after
+you and pick up any clues.”
+</p>
+
+<p>
+As he hung up the ’phone, his forehead wrinkled into little lines of absorbed
+concentration. He sat at his desk for fully five minutes almost motionless,
+trying to figure it out. What did the accident to Dean signify? How was the
+sudden disappearance of Jane Strong to be accounted for? Had she fled from the
+scene after Dean was disabled, fearing that her name might be coupled with his
+in an account of the accident? It did not seem like the sort of thing she would
+do. The impression she had made on him was that of a girl of high resolve who
+would be apt to carry through anything she undertook, cost what it may. Yet
+what could have happened to her? If she, too, had been injured, why was she not
+with Dean? If she was not injured, why had she not communicated with the
+office? Who were the couple that had brought Dean to the doctor’s office? Why
+had not the doctor taken their names and addresses?
+</p>
+
+<p>
+What part had the Hoffs played in the accident? Had they purposely run down the
+motorcycle? If they had found out they were being shadowed they would not have
+hesitated, he felt sure, to resort to such murderous tactics. Had they not
+already one dastardly murder to their record? He must find out when the Hoffs
+arrived home. They would not be due for an hour or two, but he would caution
+the operatives watching the house to keep more vigilant watch. Reaching for his
+’phone he called up the head-quarters of the operatives.
+</p>
+
+<p>
+“Report to me at once,” he said to the operative who answered his call, “the
+minute the Hoffs have arrived home.”
+</p>
+
+<p>
+“The old man is home now,” the operative answered.
+</p>
+
+<p>
+“What’s that?” cried Fleck.
+</p>
+
+<p>
+“He came in alone five minutes ago on foot. The young man is not home yet with
+the automobile.”
+</p>
+
+<p>
+“Let me know as soon as he arrives,” said Fleck curtly, turning away from the
+’phone.
+</p>
+
+<p>
+He was more perplexed than ever. What could have happened? Where was young Hoff
+with the motor? Where was Jane Strong? Why had she disappeared after Dean had
+been hurt? How had she vanished? The Hoffs’ affairs had assuredly taken a new
+and bothersome turn, over which Fleck sat puzzling many minutes.
+</p>
+
+<p>
+Where was Jane Strong? In the answer to that question, he decided at length,
+lay the crux of the whole situation.
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_XI"></a>CHAPTER XI<br/>
+JANE’S ADVENTURE</h2>
+
+<p>
+For more than two hours Thomas Dean and Jane had been vainly circling about
+West Point on their motorcycle, striving to pick up some clue that would put
+them once more on the trail of the Hoffs’ car. They had not dared to ask too
+many questions of any one near the ferry, fearful lest the people they were
+pursuing might have a guard posted there to warn them in case of a possible
+pursuit, yet cautious inquiries seemed to indicate that all the automobiles on
+the ferryboat which had preceded had been headed to the north.
+</p>
+
+<p>
+“There’s only one thing we can do,” Dean had said despondently. “We have got to
+run out each road we come to until we reach some shop or garage where the
+people would be likely to have noticed the Hoffs. They may have stopped
+somewhere, or we may meet some one coming toward us who will remember having
+passed them.”
+</p>
+
+<p>
+“It seems like a wild-goose chase,” said Jane, “but I suppose there is nothing
+else to do.”
+</p>
+
+<p>
+The strain of their bitter disappointment was telling on both of them. Each
+felt inclined to blame the other for their having fallen so far behind. They
+rode along in silence, their nerves becoming more and more keyed up as their
+hopes grew less. At garage after garage they paused to question the employees.
+</p>
+
+<p>
+“Did a big gray car with two men, an old man with a beard and a young man
+driving, pass this way about an hour ago?”
+</p>
+
+<p>
+“I don’t remember any such car,” was the invariable answer.
+</p>
+
+<p>
+Time and time again they repeated their query, wording it always the same,
+except for lengthening the interval of time in which the car might have passed,
+for the afternoon was rapidly passing. In their circuit they had now reached
+the roads pointing to the southward.
+</p>
+
+<p>
+“We’ll try this one more garage,” said Dean, as they approached a wayside shed
+bearing a large sign “Gasoline.”
+</p>
+
+<p>
+“I fear it is only wasting time,” said Jane wearily.
+</p>
+
+<p>
+“Don’t you want the Hoffs caught?” snapped her companion.
+</p>
+
+<p>
+“Of course I do,” she retorted heatedly, “but I don’t see you catching them.”
+</p>
+
+<p>
+“I believe you are half glad of it,” snarled her escort as he brought the
+machine to a stop and repeated his usual question.
+</p>
+
+<p>
+“Sure there was a car with two men in it like you describe passed here,” the
+man replied to their amazement and delight. “They stopped here for gas, as they
+generally do. About three hours ago, I guess it musta been.”
+</p>
+
+<p>
+Dean shot a triumphant glance at Jane.
+</p>
+
+<p>
+“An old man with a gray beard and a smooth-shaven young man driving—does that
+describe them?” he repeated.
+</p>
+
+<p>
+“That’s them,” said the garage proprietor. “They come through here every few
+days, always about the same time.”
+</p>
+
+<p>
+“Where do they go?” questioned Dean eagerly, feeling at last that the scent was
+growing hot.
+</p>
+
+<p>
+The man shook his head in a puzzled way.
+</p>
+
+<p>
+“I’ve often wondered about that. They’re always heading south and appear to be
+in a powerful hurry, but the funny part of it is I ain’t never seen them coming
+back.”
+</p>
+
+<p>
+“Do you know their names?”
+</p>
+
+<p>
+“No, I can’t say I do, though it seems as if I’d heard one of them called Fred.
+I can’t say which it was.”
+</p>
+
+<p>
+“Do they always come by on the same day—on Wednesday?” asked Jane, forgetful
+once more of Dean’s warning to let him do the talking lest her voice should
+betray her sex.
+</p>
+
+<p>
+“Come to think of it,” said the man, apparently noticing nothing unusual, “I
+guess it always is on a Wednesday they come by.”
+</p>
+
+<p>
+“Is the number of their car anything like this?” asked Dean, exhibiting an
+entry in his notebook.
+</p>
+
+<p>
+“I couldn’t say,” said the man, studying the figures. “I know it is a New York
+license, and the number ends with two nines like this one does. What might you
+be wanting them for?”
+</p>
+
+<p>
+He spoke to a cloud of dust, for Dean had started up the motorcycle before he
+finished speaking and already was speeding away.
+</p>
+
+<p>
+“Where now?” asked Jane.
+</p>
+
+<p>
+“I don’t know,” he answered frankly, “I only know we are going the direction
+the Hoffs went, and I want to gain on them before they get too far ahead. The
+chap back there had told us all he knew and was beginning to get curious, so I
+thought it better to vamoose.”
+</p>
+
+<p>
+“It’s funny about his never seeing them coming back.”
+</p>
+
+<p>
+“Probably there is nothing mysterious about that. I have a notion they always
+come up one side the river and down the other, taking the 125th Street ferry
+home. That would not be a bad plan to help them in eluding too curious
+observers. All these German spies are trained to leave as blind a trail behind
+them as possible. The thing we have got to discover is what brought them up
+here. We’ve just got to find out their destination.”
+</p>
+
+<p>
+“I am afraid there is little chance of our doing that,” insisted Jane. “We’ve
+nothing to go on.”
+</p>
+
+<p>
+“We’ve learned something. We know that their destination is somewhere between
+here and Fort Lee on this side of the river. That narrows down the search
+considerably. That’s more, too, than anybody else that the Chief has had on
+their trail has learned. Something tells me that we are getting warm right now.
+Obviously the place they come to must be nearer West Point than it is New York.
+They would hardly take too roundabout a course, even for the sake of hiding
+their tracks. Keep a sharp lookout for tire tracks leaving the main road.”
+</p>
+
+<p>
+The route they were following quickly led them into a sparsely inhabited
+mountainous district and instead of the concreted state highway they found
+themselves on a hilly dirt road, full of ruts and loose stones that made travel
+difficult. At times it was all Dean could do to manage the machine, so that he
+had to leave most of the task of observing the by-ways to Jane. For more than
+two miles they had seen neither house nor barn. Once or twice they came upon
+little used lanes leading off through the woods, but none of them showed any
+traces of the recent passing of an automobile.
+</p>
+
+<p>
+As they came dashing around a curve on a steep down-grade, where hardly more
+than the semblance of a road had been cut into the hillside, Jane caught her
+breath sharply. Above the roar of their own motor she thought she heard some
+other noise, something that sounded like another car near-by; yet neither
+behind nor ahead was there another automobile in sight.
+</p>
+
+<p>
+“Listen,” she cried sharply.
+</p>
+
+<p>
+Dean started to slow down, but it was too late. Out of a cut in the hillside,
+half screened by a clump of bushes at the side on which Jane was riding, a
+great gray motor shot out just as they were passing. Jane caught just one
+glimpse of the man on the driver’s seat. It was Frederic Hoff, frantically
+twisting at the wheel in an effort to avert the threatened collision. There
+came a thud and a crash as the forward part of the Hoff car struck the
+motorcycle a glancing blow, overturning it completely. Too terrified even to
+shriek, Jane felt herself being catapulted out of her seat and flung high in
+air. Then came a blank.
+</p>
+
+<p>
+Her companion did not escape so easily. The heavy machine crashed over on him
+and dragged him several yards. His head, as he landed in the roadway, struck a
+stone, and the motorcycle itself pinned him to the earth by its weight, one of
+his arms doubled up in an alarming fashion, as he lay there completely
+senseless.
+</p>
+
+<p>
+Jane fortunately had landed on some soft grass, though with sufficient force to
+leave her badly stunned. As she lay there, a boyish figure in her disguise, her
+senses began gradually to revive, although it was some time before she opened
+her eyes.
+</p>
+
+<p>
+Vaguely, as from a great distance, she began to hear voices, and it seemed to
+her that they were German voices, arguing about something. The voices seemed
+angry and excited. At first she did not bother about them. She was wondering
+how badly she was hurt. Her arms and limbs had a curious sort of deadness about
+them, a detached sensation, as if they belonged to some one else. She wondered
+if she was paralyzed and dared not try to move them, fearful lest she might
+find that it was the terrible truth.
+</p>
+
+<p>
+The voices—the German voices—came nearer, became louder and more strident. She
+struggled to collect her thoughts. Where was she? What had happened? Where was
+Thomas Dean? Gradually some memory of the accident came to her. They had been
+run down by the Hoffs’ car. The voices she kept hearing were those of the two
+Hoffs, angrily wrangling about something. As she revived further she became
+acutely conscious that her head seemed to be splitting. What was it the Hoffs
+were arguing about? Still lying there motionless, with her eyes closed,
+endeavoring to collect herself, she tried to listen to what they were saying.
+</p>
+
+<p>
+“I tell you there is not time. I must hurry. Every minute is precious. I cannot
+delay my work for these swine, no matter if they both are dying or dead,” old
+Otto was angrily shouting with many German oaths.
+</p>
+
+<p>
+“I tell you,” Frederic was saying,—his voice was calmer but determined,—“we’ve
+got to get these people to a doctor. It’s too heartless. I will not leave them
+here.”
+</p>
+
+<p>
+“And betray us at the last moment, when our plans are all ready,” snarled old
+Otto.
+</p>
+
+<p>
+“There is less danger if we bundle them into the car and take them with us than
+if we leave them here,” protested Frederic. “Two bodies right here at the
+entrance would be fine, <i>nicht wahr?</i>”
+</p>
+
+<p>
+His last remark appealed to old Otto.
+</p>
+
+<p>
+“That is so,” he muttered. “It is not safe. We must hide the bodies, both of
+them, yes?”
+</p>
+
+<p>
+The bodies! Jane decided that Dean must have been killed and that they thought
+that she, too, was dead. As she strove to open her eyes she could hear Frederic
+protesting.
+</p>
+
+<p>
+“It’s inhuman,” he cried. “They both are hurt, but perhaps still alive. We must
+take them to a hospital.”
+</p>
+
+<p>
+“And endanger all our plans,” stormed old Otto. “Throw them into the woods.”
+</p>
+
+<p>
+“We’ll do nothing of the sort,” Frederic insisted, his voice becoming unusually
+stern and severe. “I’m going to get both of these people to a doctor at once, I
+tell you.”
+</p>
+
+<p>
+With effort Jane opened her eyes and looked cautiously about. Where was Thomas
+Dean? How badly had he been hurt? The Hoffs’ automobile was slowly backing up.
+As she looked old Otto sprang out of it and righted the motorcycle. As he did
+so Jane saw the body of Dean lying senseless beneath it, but to him the old
+German paid no attention. He was examining the motorcycle and still sputtering
+that the swine should be left to rot.
+</p>
+
+<p>
+“We are going to take them with us in the car,” directed Frederic in a voice of
+authority. “I command it.”
+</p>
+
+<p>
+At the word old Otto’s mutterings ceased, though he shot a black look at the
+younger man.
+</p>
+
+<p>
+“This machine,” he suggested, “it is not hurt. I will take it and do our work.
+There is haste. You remain with the car. Do what you will with these people.”
+</p>
+
+<p>
+“Go then,” said his nephew curtly. “You can take the train at the first station
+and make time.”
+</p>
+
+<p>
+As the old man mounted the motorcycle and sped away Frederic sprang from the
+car, and approaching the spot where Dean’s body lay, began making an
+examination of his injuries.
+</p>
+
+<p>
+“Scalp wound, perhaps fractured skull, broken arm,” Jane heard him saying aloud
+to himself. She noted curiously that as soon as he was left to himself he began
+speaking in English.
+</p>
+
+<p>
+He left Dean and approached her. As he came nearer she closed her eyes again,
+trying to plan some course of action. Her head was throbbing so that she found
+it impossible to think. She felt toward young Hoff a warmth of gratitude for
+not having gone off and left them helpless as his uncle had insisted. Even
+though he was an enemy of her country, a man to be hated, a spy, she could not
+help being glad for his presence there. What would she have done without him,
+with Dean lying there injured and helpless on this lonely mountain road?
+</p>
+
+<p>
+“This chap seems only stunned,” she heard him say as he bent over her, then as
+he looked closer, she heard him exclaim:
+</p>
+
+<p>
+“My God, it’s Jane!”
+</p>
+
+<p>
+In an instant he was down at her side on his knees. Tenderly one of his arms
+went about her and lifted her head.
+</p>
+
+<p>
+“Miss Strong, Jane, Jane,” he implored, “Jane dear, speak to me.”
+</p>
+
+<div class="fig" style="width:100%;">
+<a name="illus04"></a>
+<a href="images/illus04.jpg">
+<img src="images/illus04.jpg" width="464" height="650" alt="Illustration:" /></a>
+<p class="caption">“Thank God,” he cried. “Jane dear, tell me you are not hurt.”</p>
+</div>
+
+<p>
+Stunned though she still was a flush crept into Jane’s cheeks at the unexpected
+term of endearment, though she still kept her eyes closed. Gently he laid her
+back on the turf and hastened to the automobile, returning with a flask which
+he held to her lips. Slowly Jane opened her eyes.
+</p>
+
+<p>
+“Thank God,” he cried. “Jane dear, tell me you are not hurt.”
+</p>
+
+<p>
+For a moment she lay there, staring wonderingly at him as he bent over her
+imploringly, the tenderest of anxiety showing in every line of his face.
+Unprotestingly she let him slip his strong arm once more under her head. In her
+dazed brain there was a strange conflict of peculiar emotions. He was a German,
+a spy,—she hated him, and yet it was wonderfully comforting to her to have him
+there. Under other circumstances she could have loved him. He was so handsome,
+so masterful and so kind, too. He cared for her. Had he not called her “Jane,
+dear” in his amazement at finding her lying there? But she must not let herself
+think of him in that way. It was her duty, her sacred duty to trap him, to
+thwart his nefarious plans against her country. She must do her duty just as
+her soldier brother was doing his in far away France.
+</p>
+
+<p>
+Still supported by Hoff’s arms she sat up, trying to collect her thoughts and
+gingerly testing the movement of her arms and limbs.
+</p>
+
+<p>
+“Tell me,” he cried again, “Jane, dear, are you hurt?”
+</p>
+
+<p>
+“I don’t think so,” she managed to say.
+</p>
+
+<p>
+With his assistance she got up on her feet and walked uncertainly to the car,
+shuddering as she looked at Dean’s crumpled senseless body.
+</p>
+
+<p>
+“Your friend,” said Hoff, as he placed her in the forward seat and wrapped a
+rug about her, “I am afraid, is badly hurt.”
+</p>
+
+<p>
+“It’s our chauffeur, Thomas Dean,” she explained confusedly.
+</p>
+
+<p>
+She had been wondering what she could say to Frederic to account for her
+presence there. It was unconventional at least for a girl to be motorcycling
+about the country dressed in man’s clothes with a chauffeur. Hoff must surely
+realize now that she had been shadowing him. She felt almost certain that he
+had known it from the very first, since that afternoon when he had overheard
+her telephoning about the “fifth book.” Yet never by word or manner had he
+betrayed the fact that he suspected her. Beyond his customary reserve in
+speaking about himself or his activities, there was nothing to indicate that he
+knew anything yet. Whatever she told him now she must be careful not to betray
+her mission. Perhaps even in spite of all that had happened she still might be
+able to aid Chief Fleck in trapping them.
+</p>
+
+<p>
+But did she really want to trap Frederic Hoff? Had Thomas Dean’s bitter charge
+that she was trying to protect him been true? Frederic Hoff loved her. She,
+yes—she had to admit it to herself—she was beginning to love him. Could she go
+on with it?
+</p>
+
+<p>
+Hoff had been busy lifting the unconscious Dean into the tonneau. As she
+watched him as he lifted up the body unaided she was conscious of admiration of
+his great strength.
+</p>
+
+<p>
+“Will he die?” she whispered.
+</p>
+
+<p>
+“I don’t know,” he answered. “He is badly hurt. We must get him to a doctor at
+once.”
+</p>
+
+<p>
+He stopped a moment longer to examine the car. Fortunately the glancing blow
+that it had struck the motorcycle had done no more damage than shatter one of
+the lamps and bend the mud guard. Soon they were moving rapidly in the
+direction of New York.
+</p>
+
+<p>
+“I think,” said Hoff, “we had better leave him in the care of the first doctor
+we come to. We can say that he is an injured motorcyclist we found lying in the
+road.”
+</p>
+
+<p>
+“And me?” asked Jane, almost fearfully.
+</p>
+
+<p>
+“I’ll take you back to the city with me.”
+</p>
+
+<p>
+“No,” she replied, “that won’t do. I ought to stay by him. Besides, if I return
+with you, it will be hard to explain.”
+</p>
+
+<p>
+He turned to look inquiringly at her and for a moment drove on in silence.
+</p>
+
+<p>
+“There’s nothing more you can do for the man once he is in competent medical
+hands, except to notify his people. Is he married?”
+</p>
+
+<p>
+“No,” said Jane, “he’s not married. I can tell his friends.”
+</p>
+
+<p>
+“Did your parents know about”—he hesitated—“about this trip with the
+chauffeur?”
+</p>
+
+<p>
+Jane blushed guiltily, wondering what he suspected of her. She hoped that he
+did not think she had a habit of going off on such journeys with the chauffeur.
+Even though the man at her side was officially her enemy she resented being put
+into a position that would cheapen her in his eyes.
+</p>
+
+<p>
+“No,” she replied, “they knew nothing about it.”
+</p>
+
+<p>
+Hoff drove on in silence. She had feared that he might ask her more
+embarrassing questions, might insist on knowing where she had been going when
+the accident occurred. A panic seized her. What if he should ask her? What
+could she tell him? He had a masterful way about him. If he took it into his
+head to make her confess she realized that she would have a struggle to keep
+from telling him everything. She made up her mind that she would not, she dare
+not answer any more questions.
+</p>
+
+<p>
+When he spoke again she was relieved to hear a suggestion instead of a query.
+</p>
+
+<p>
+“When we have crossed the ferry,” he said, “you can put on a dust coat to hide
+your costume, and I will send you home in a taxi. Will that be all right?”
+</p>
+
+<p>
+“That will do nicely,” she replied, gratefully conscious that he was
+endeavoring to plan so that her part in the afternoon’s adventures need not
+become public.
+</p>
+
+<p>
+Nevertheless she waited nervously while Hoff and the doctor carried Dean into
+the doctor’s home. What if the doctor’s suspicions should be aroused, and he
+should insist on knowing all the details of the accident? To her astonishment
+the doctor seemed to accept Hoff’s brief recital of finding an injured
+motorcyclist on the road without question. Perhaps if she had seen the amount
+of the bills Hoff left to care for the chauffeur’s treatment she might have
+understood better.
+</p>
+
+<p>
+Yet unconscious though Dean had lain all the way, as they resumed their journey
+without him, she felt a sudden sense of dread at being alone in the car with
+Frederic Hoff. It was not that she longer feared he would endeavor to make her
+tell her reasons for the expedition. She was afraid that with just the two of
+them alone in the car he might seize the opportunity to declare his affection
+for her.
+</p>
+
+<p>
+But, to her amazement, he hardly spoke a word to her on all the rest of the
+journey homeward. Once in a while as she ventured a glance in his direction,
+annoyed a little perhaps by this neglect of her, she saw only a strong face set
+in lines of thought, his brow wrinkled in deep perplexity, and his blue eyes
+looking steadily at the road ahead—and at something far, far beyond.
+</p>
+
+<p>
+Save for an occasional solicitous question about her comfort he did not speak
+again until just after he had put her in a taxi at the ferry. As Jane was
+trying to say her thanks he leaned forward unexpectedly, his tall frame
+blocking the whole doorway.
+</p>
+
+<p>
+“Jane,” he said, his voice vibrant with emotion, “Jane, you must trust me.
+Everything must come out all right. Some day—some day soon when we have won—I
+am coming to find you and tell you that I love you.”
+</p>
+
+<p>
+“When we have won!” Jane shuddered and drew back in the car, aflame with sudden
+wrath.
+</p>
+
+<p>
+She had read and had heard often of the unspeakable conceit of the Prussians.
+She knew that they regarded themselves as supermen who could not be defeated.
+Her challenged American pride rose to battle. As she rode home she was sure now
+that more than she hated anything else in the world she hated Frederic Hoff,
+the spy, the German, who had dared to boast to her that they expected to win.
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_XII"></a>CHAPTER XII<br/>
+PUZZLES AND PLANS</h2>
+
+<p>
+Chief Fleck had spent a sleepless night trying to put two and two together.
+Instead of the answer being “four” as it should have been each time he
+completed his figuring the result was “zero.” Time and again he mustered the
+facts into columns, only to succeed in puzzling himself the more.
+</p>
+
+<p>
+Two German spies, the Hoffs, had set out together in their motor on their usual
+mysterious Wednesday mission. Two other persons, two of his most intelligent
+operatives, Thomas Dean and Jane Strong, had set out on a motorcycle to shadow
+them.
+</p>
+
+<p>
+What had happened?
+</p>
+
+<p>
+Otto Hoff had returned to his apartment on foot, hours before his usual time,
+seemingly much perturbed about something.
+</p>
+
+<p>
+Frederic Hoff had arrived back at the apartment, also on foot, some hours later
+than usual, and the motor had not been returned to its usual garage. Frederic
+Hoff had appeared to be unusually elated about something.
+</p>
+
+<p>
+Thomas Dean was in a doctor’s home somewhere up the Hudson with a broken arm
+and a bad scalp wound and was unable to tell what had become of either Miss
+Strong or the motorcycle.
+</p>
+
+<p>
+Jane Strong had arrived home in a taxicab half an hour before Frederick Hoff,
+apparently unhurt but in a most peculiar condition of mind. When Chief Fleck
+had called her on the ’phone she had refused to answer any questions. The best
+he could get out of her was a promise that she would come to his office in the
+morning.
+</p>
+
+<p>
+From this situation Fleck’s shrewd and experienced mind had been wholly unable
+to make any satisfactory deductions. That something unforeseen and unusual had
+happened to the Hoffs he was certain. It was the first time on a Wednesday that
+they had not returned together. Whatever it was that had happened it had
+depressed old Otto and had been a cause of elation to Frederic. What could it
+have been? That was the poser.
+</p>
+
+<p>
+Coupled with this was the annoying fact of Jane Strong’s sudden reticence.
+Hitherto he had found her at all times ready and eager whenever he called on
+her—ready to do anything he asked her, or to tell him everything. Why had she
+suddenly balked? He recalled that Dean had hinted, and Carter, too, that the
+girl was becoming interested in the younger of the Germans, yet he scouted the
+possibility of Jane having gone over to the enemy’s side. A girl of her stock,
+living with her parents, with a brother fighting in France, never could be
+guilty of disloyalty, even if she were in love. Yet how was her disinclination
+to talk to be accounted for? After he had received a report that she was at
+home he had waited, expecting her to call him up. When she had not done so, he
+had called her. She had been positively curt and decisive. She had nothing to
+say to him, she had replied, at present. Dean was safe. She would come to his
+office in the morning. There was nothing for him to do but to await her
+arrival.
+</p>
+
+<p>
+He was expecting Carter, too. He had sent him to Nyack the evening before as
+soon as he had learned of Dean’s whereabouts. Carter was to find out everything
+that Dean had learned and report as soon as he could. It was Carter who arrived
+first.
+</p>
+
+<p>
+“Dean doesn’t know what happened to him, nor where the girl went,” said Carter.
+“They had lost the Hoffs’ trail at the Garrison ferry, as he told you over the
+’phone. They had to wait there half an hour for another boat. They scouted
+around West Point, and nearly three hours afterward they picked up the trail
+heading toward New York. About ten miles south of West Point they were clipping
+along a mountain road when something happened. Dean is not sure whether he hit
+a stone in the road or whether an automobile struck them. He was knocked
+unconscious and didn’t remember anything more until he came to and found the
+doctor setting his arm.”
+</p>
+
+<p>
+“Who took him to the doctor’s?”
+</p>
+
+<p>
+“It was a couple, the doctor said, who explained that they had found Dean lying
+in the road under his wrecked motorcycle. The doctor could not remember what
+the couple looked like. Said he had been too busy looking after the injured
+man. I did worm out of him, though, that the man had left two hundred dollars
+with him to take care of Dean.”
+</p>
+
+<p>
+“That’s funny,” said the chief.
+</p>
+
+<p>
+“It sure is,” said Carter. “Looks like hush money to me. What does the girl
+say?”
+</p>
+
+<p>
+“Nothing yet,” said Fleck. “She wouldn’t talk at all last night, but she’s
+coming here at ten.”
+</p>
+
+<p>
+“That’s funny,” said Carter. “Why wouldn’t she talk?”
+</p>
+
+<p>
+“I don’t know yet,” said Fleck decisively, “but I am going to find out. Do you
+really suppose that she has fallen in love with young Hoff?”
+</p>
+
+<p>
+Carter shook his head.
+</p>
+
+<p>
+“Dean thought so, and I know that Dean was in love with her himself, but I
+don’t know. I’d bank on that girl somehow, even if she is in love.”
+</p>
+
+<p>
+“There she comes now,” said the chief as he heard the door of the outer office
+open.
+</p>
+
+<p>
+As Jane entered she faced the two men almost defiantly. She too had had a
+sleepless night. Although she herself had been physically uninjured in the
+accident the shock to her nerves had left her unstrung, and besides she had
+been bothering all through the dark hours as to how much of what had happened
+in the last few hours it was her duty to tell to Chief Fleck.
+</p>
+
+<p>
+As her personal relations with Frederic Hoff and her feelings toward him had in
+no way affected her sense of duty she felt that it was unnecessary for her to
+report the declaration of love he had made to her. Surely an affair that
+involved only the heart was her own property so long as she faithfully reported
+anything and everything that might lead to the exposure of the Hoffs’ plots.
+She could not see that it was any of Chief Fleck’s business, nor her country’s
+either, if Frederic Hoff had fallen in love with her. At any rate it would be
+utterly impossible for her to make any statement about her own feelings toward
+him. Even in her own heart and mind she was not quite sure what they were. From
+the first his forceful personality had had great charm for her. His obvious
+interest in her she had found delightful and flattering. When she recalled how
+gallantly he had insisted on remaining to rescue Dean and herself, even before
+he knew her identity, she was filled with admiration for him. Yet always
+matched against all that she found lovable in him was the knowledge that he was
+a German, a traitor, a spy, perhaps a murderer, and at times she felt that she
+hated him with a hatred that never could be overcome.
+</p>
+
+<p>
+“Well,” said Fleck, studying her countenance, “what have you to tell us?”
+</p>
+
+<p>
+“How is Dean?” she asked. “Will he live?”
+</p>
+
+<p>
+Fleck and Carter exchanged glances. Was she, they wondered, really concerned in
+the handsome young chauffeur’s welfare, or had she merely put the question to
+gain time in framing what she was going to say?
+</p>
+
+<p>
+“I just left him,” said Carter, in response to an almost imperceptible nod from
+the chief; “he’s all right except for a scalp wound and a broken arm.”
+</p>
+
+<p>
+“I’m glad,” said the girl impulsively.
+</p>
+
+<p>
+“What happened to him?” asked Carter.
+</p>
+
+<p>
+“Don’t you know? The Hoffs’ automobile hit us and overturned the motorcycle.”
+</p>
+
+<p>
+“The Hoffs’ car!” cried Fleck and Carter together.
+</p>
+
+<p>
+“Yes, I thought you knew.”
+</p>
+
+<p>
+“Tell us everything,” demanded Fleck. “Where did it happen? Did they run you
+down purposely?”
+</p>
+
+<p>
+“I don’t think so; in fact I am sure they didn’t. It was entirely accidental.”
+</p>
+
+<p>
+“Where did it happen? All Dean could remember was that you had picked up their
+trail about ten miles south of West Point. He could not tell how the accident
+occurred. He didn’t even mention the Hoffs or seem to suspect that they were
+anywhere near at the time.”
+</p>
+
+<p>
+“I don’t think he saw their car at all,” Jane explained. “I caught just a
+glimpse of it before we were crashed into. We were on a mountain road going
+down a steep hill when their motor shot out of a deep cut just as we were
+passing.”
+</p>
+
+<p>
+“What happened then?”
+</p>
+
+<p>
+“I must have been stunned for a moment or two. When I regained my senses the
+Hoffs’ car had stopped, and Frederic was backing the car to where the accident
+had happened. His uncle was storming at him for stopping. He wanted Frederic to
+go on and leave us there, but Frederic wouldn’t do it, and they quarrelled.
+Frederic won out by pointing out that two bodies lying at the entrance would
+arouse suspicion.”
+</p>
+
+<p>
+“At the entrance to what?”
+</p>
+
+<p>
+“I don’t know. He didn’t say. I think I could find the place again.”
+</p>
+
+<p>
+“We’ve got to find it,” said Carter.
+</p>
+
+<p>
+“Indeed we have,” Jane agreed, “and quickly, too. I fear we are going to be too
+late. Old Mr. Hoff seemed to be in terrible haste and spoke of their plans
+being nearly completed.”
+</p>
+
+<p>
+“Go on,” said Fleck quietly, “tell us the rest.”
+</p>
+
+<p>
+“Frederic Hoff stayed behind to pick us up, and the old man went off on the
+motorcycle. I heard them talking about his taking a train at the nearest
+station.”
+</p>
+
+<p>
+“What did young Hoff do when he found it was you lying there?”
+</p>
+
+<p>
+“He seemed surprised and startled.”
+</p>
+
+<p>
+“What did he say?”
+</p>
+
+<p>
+Jane colored and hesitated. There rose in her mind the picture of his tall
+figure bending over her, with anguish in his eyes, with expressions of
+endearment on his lips. She could not, she would not tell them what he had
+said.
+</p>
+
+<p>
+“He asked if I was hurt.”
+</p>
+
+<p>
+“Is that all?”
+</p>
+
+<p>
+Again she blushed and hesitated.
+</p>
+
+<p>
+“That’s all.”
+</p>
+
+<p>
+“Did he not seem amazed at finding you there? Did he not ask you to account for
+your presence there?”
+</p>
+
+<p>
+“No,” said the girl, firmly, “he didn’t.”
+</p>
+
+<p>
+“Didn’t he question you at all?”
+</p>
+
+<p>
+“No,” she insisted, “he was busy getting Dean into the car. He was unconscious,
+and it looked as if he was badly hurt.”
+</p>
+
+<p>
+“Queer, mighty queer,” muttered Carter to himself.
+</p>
+
+<p>
+“Didn’t he ask you who Dean was?” questioned Fleck.
+</p>
+
+<p>
+“I explained that he was our chauffeur. He may have known him by sight at any
+rate.”
+</p>
+
+<p>
+“Go on.”
+</p>
+
+<p>
+“We stopped at the house of the first doctor we came to and left Dean there,
+and then Mr. Hoff brought me on home in the car. At the ferry he put me into a
+taxi.”
+</p>
+
+<p>
+“What did you talk about on the trip home?” asked Fleck suspiciously. “Didn’t
+he try to pump you?”
+</p>
+
+<p>
+“We hardly talked at all. He seemed concerned only in getting me home without
+its becoming known that I had been in an accident.”
+</p>
+
+<p>
+“Is that all?” asked the chief. She could see by his manner that he mistrusted
+her, that he felt that she was keeping something back.
+</p>
+
+<p>
+“We hardly exchanged a dozen words,” she insisted.
+</p>
+
+<p>
+Fleck shook his head in a puzzled way.
+</p>
+
+<p>
+“I can’t understand it at all,” he said. “Old Otto is a common enough type of
+German, painstaking, methodical, stupid, stubborn, ready to commit any crime
+for Prussia, but the young fellow is of far different material. He has brains
+and daring and initiative. He is far more alert and more dangerous. I cannot
+understand his finding you there and not trying to discover what you were
+doing.”
+</p>
+
+<p>
+“I can’t understand that either,” Jane admitted.
+</p>
+
+<p>
+“There’s no doubt in my mind,” the chief continued, “that Frederic Hoff is the
+real conspirator, the head of the plotters.”
+</p>
+
+<p>
+“Why do you say that?” asked Jane quickly. “What did you find out when you
+searched the apartment yesterday?”
+</p>
+
+<p>
+She felt certain from the manner in which he spoke that he must now have some
+damning evidence of Frederic Hoff’s guilt. He was not in the habit of making
+decisions without proof.
+</p>
+
+<p>
+“We found,” said Fleck, his keen eyes fixed on her face as if trying to read
+her innermost thoughts, “a British officer’s uniform hanging in Frederic Hoff’s
+closet, proof positive that he is a dangerous spy.”
+</p>
+
+<p>
+“And,” said Carter, pointing to the two clippings lying on Fleck’s desk, “in
+the old man’s waste-paper basket we found those.”
+</p>
+
+<p>
+Jane picked up the clippings and examined them curiously.
+</p>
+
+<p>
+“What are they?” she asked, looking from one to the other; “cipher messages of
+some sort?”
+</p>
+
+<p>
+“We think so,” said Carter. “We don’t know yet.”
+</p>
+
+<p>
+“I’ve noticed these peculiar advertisements often,” said Jane, studying the
+clippings, “but I never thought of connecting them with the Hoffs. I wonder—”
+Fleck and Carter had their heads together and were talking in low tones.
+</p>
+
+<p>
+“I wonder,” said the chief, “what young Hoff is up to. He must have known the
+girl was there to spy on him. I can’t understand his not quizzing her.”
+</p>
+
+<p>
+“He’s a cagey bird,” Carter replied. “They are both of them expert at throwing
+off shadowers. Both of them know, I think, they are being watched.”
+</p>
+
+<p>
+“Oh, listen,” interrupted Jane, all excitement. “I believe I can read this
+cipher. The number of letters in the word in big type at the beginning of the
+advertisement is the key. See, this word here is ‘remember’—that has eight
+letters. Read every eighth word in this advertisement. I’ve underlined them.”
+</p>
+
+<p>
+Fleck took the paper quickly from her hand and he and Carter bent eagerly over
+it to see if her theory was correct.
+</p>
+
+<p class="center">
+REMEMBER
+</p>
+
+<p class="letter">
+Please, that our new paste, Dento, will<br/>
+<i>stop</i> decay of your teeth. Sound teeth<br/>
+are <i>passports</i> to good health and comfort.<br/>
+No good <i>business</i> man can risk ill health.<br/>
+It is <i>closely</i> allied with failure. The<br/>
+teeth if not <i>watched</i> are quickly gone.
+</p>
+
+<p class="center">
+USE DENTO
+</p>
+
+<p class="letter">
+A genuine, safe, pleasing paste for the<br/>
+teeth, prepared and sold only by the<br/>
+Auer Dental Company, New York.
+</p>
+
+<p>
+“Stop passports business, closely watched,” repeated Fleck aloud. “That
+certainly makes sense and fits the facts, too. In the last few days we have
+drawn the net closely around a gang of supposed Scandinavians who have been
+busy supplying passports to suspicious-looking travelers. Let’s see the other
+advertisement.”
+</p>
+
+<p>
+Excitedly the three of them read it together as Fleck underscored every fourth
+word.
+</p>
+
+<p class="center">
+DON’T
+</p>
+
+<p class="letter">
+Forget it is <i>imperative</i> for one and <i>all</i><br/>
+to use cleansing <i>agents</i> on teeth that<br/>
+<i>leave</i> no bad results. “<i>Ship</i> more of<br/>
+that <i>wonder</i>-working paste immediately.<br/>
+<i>Workers</i>, employers, wives, all <i>ready</i> to<br/>
+commend it. <i>Friday’s</i> supply gone,”<br/>
+writes a druggist, to whom a big shipment<br/>
+was made last week.
+</p>
+
+<p class="center">
+USE DENTO
+</p>
+
+<p class="letter">
+A genuine, safe, pleasing paste for the<br/>
+teeth, prepared and sold only by the<br/>
+Auer Dental Company, New York.
+</p>
+
+<p>
+“Imperative all agents leave ship. Wonder-workers ready Friday,” read Fleck.
+“That’s surely a message, a warning to Germany’s agents to get off some ship or
+ships before they are destroyed. You, Miss Strong, have heard old Otto talk
+about the wonder-workers, whatever they are, being nearly ready. I guess he
+means bombs—bombs to blow up American transports. This message says they will
+be ready Friday.”
+</p>
+
+<p>
+“And to-morrow’s Friday,” said Jane.
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_XIII"></a>CHAPTER XIII<br/>
+THE SEALED PACKET</h2>
+
+<p>
+“Is this Miss Strong?”
+</p>
+
+<p>
+Jane, her face blanching, held the receiver in wavering hands for a moment
+before she could muster courage to answer. She had recognized Frederic Hoff’s
+voice speaking. What could he want with her now?
+</p>
+
+<p>
+“It is Miss Strong,” she managed to answer.
+</p>
+
+<p>
+“This is Frederic Hoff. May I come in for a moment? It is most important.”
+</p>
+
+<p>
+Again Jane hesitated. Frederic was the last person in the world she felt like
+seeing just at this moment. Only five minutes before she had arrived home from
+Chief Fleck’s office. She was under orders to hold herself in readiness to
+start immediately for the scene of yesterday’s accident. That this trip, unless
+their plans miscarried, would inevitably result in the exposure and disgrace of
+both the Hoffs she felt morally certain. To face on friendly terms the man
+whose downfall she was plotting, the man who only a few hours before had told
+her that he loved her, seemed a task far beyond her endurance, a situation too
+tragic for her to cope with.
+</p>
+
+<p>
+Duty, her duty to her country, her honor, her patriotism, her affection for her
+soldier brother, all bade her mask her feelings and seek one more opportunity
+of leading Hoff to betray himself in conversation if that were possible. Yet,
+to her own amazement and horror, her heart protested vigorously against such
+action. Harassed as she was by conflicting emotions, worn out by the trying
+experiences that had been hers the last few days, she realized at last that she
+was really in love with Hoff. The throb of joy that she had experienced at the
+sound of his voice, the thrill that came to her each time she saw him, the
+delight she found in his presence, the fact that despite all the circumstances,
+she wanted to be near him, to be with him, convinced her against her will and
+judgment that her heart was his. In vain she marshalled the damning facts
+against him. She tried to remember only the expression of murderous hate she
+had seen on his face the night that her predecessor, the other K-19, had been
+murdered. She tried to think of him only as a treacherous spy, an enemy of her
+country forever plotting to destroy Americans, yet she could not. However base
+and treacherous and low her reason told her Frederic Hoff must be, her
+refractory heart persisted in beating faster at the prospect of his coming.
+</p>
+
+<p>
+Hitherto not much given to self-analysis, she now found herself wondering at
+herself. What could be the matter with her? Why must she love this rascal? Why
+could she not fall in love with some decent, clean, patriotic young American,
+with some man like Thomas Dean? Chauffeur though he was now pretending to be,
+she knew that he was a college man, well-bred, and traveled. She knew, too,
+that Dean was in love with her. For him she had a sincere liking, great
+admiration even, and toward him now she was experiencing that feeling of
+sympathy a woman always has for the man she cannot love. But her feeling toward
+Dean, she classified as only that of friendship, nothing at all like the
+passionate affection that was rapidly drawing her closer and closer to Hoff.
+</p>
+
+<p>
+Dared she see him now? Might not her love for him overcome her high desire to
+be of service to her country? Might she not be led by her unruly heart into
+betraying to him the fact that he was in the most imminent peril?
+</p>
+
+<p>
+Yet she must see him, she told herself. Perhaps this very day he might be
+arrested and imprisoned. She might never again have the opportunity of seeing
+him alone and of talking with him. Into her troubled brain came a daring
+thought. Perhaps it was not too late, even yet, to turn him from his evil
+course. Was there, she wishfully wondered, any possibility of her leading him,
+through his love for her, to forsake his comrades, even to betray them? No, she
+admitted to herself, that was a preposterous idea. He was too dominating, too
+forceful, too determined, to be influenced to anything against his will.
+</p>
+
+<p>
+“May I come in, please?” he kept insisting over the ’phone.
+</p>
+
+<p>
+“Only for a minute,” she answered tremulously. “I’m going out soon. I have an
+engagement.”
+</p>
+
+<p>
+“I’ll come right over. I will not keep you long.”
+</p>
+
+<p>
+As she awaited his arrival, subconsciously desirous of looking her best in his
+presence, she stopped almost mechanically before her mirror to adjust her hair,
+letting him wait for her for a few minutes.
+</p>
+
+<p>
+He sprang forward to meet her as she entered the room where he was, his face
+beaming with delight at the sight of her.
+</p>
+
+<p>
+“Jane,” he cried, with a volume of meaning in the monosyllable, as seizing her
+hand, he held it tightly and gazed earnestly into her face.
+</p>
+
+<p>
+Bravely she tried to meet his gaze, to read in his face if she could the object
+of his unexpected visit, but her eyes fell before his, and the hot blood surged
+into her cheeks. Within her raged a desperate battle between her head and
+heart. Mingled with her unwelcome quickening of the pulse at his approach and
+admiration for his audacity in coming to her when he must know that she knew
+what he was, there was also an overwhelming sense of futile rage that he, a
+scheming German plotter, dared intrude his presence into an American home.
+</p>
+
+<p>
+“I’m glad to see you appear no worse for your accident,” he said, releasing her
+hand at last. “You got home all right, without attracting any one’s notice?”
+</p>
+
+<p>
+“Oh, yes,” she answered, trying to make her reply seem wholly indifferent and
+disinterested.
+</p>
+
+<p>
+“Your chauffeur is all right, too,” he went on. “I telephoned this morning. He
+had already left the doctor’s. There’s nothing more the matter with him than a
+broken arm and a scalp wound. That’s fortunate, isn’t it?”
+</p>
+
+<p>
+“Very fortunate,” she admitted.
+</p>
+
+<p>
+All at once as they stood there there seemed to have arisen between them an
+invisible, impenetrable barrier. They faced each other wordlessly, each
+embarrassed by the knowledge of the secret gulf that was between them. Hoff was
+the first to recover from it.
+</p>
+
+<p>
+“Come,” he said, “sit down. There is something I wish to say to you,—something
+of the utmost importance, Jane.”
+</p>
+
+<p>
+Still struggling with her emotions, Jane allowed him to place a chair for her
+and seated herself, striving all the while to crush back into her heart the
+warmth of feeling toward him that always overwhelmed her in his presence,
+endeavoring to present to him a mask of cold indifference. Yet her curiosity,
+as well as her affections, had been greatly stirred by his remark. What was it
+that he was about to say to her? Did he intend, in spite of the insurmountable
+obstacles between them, dared he, ask her to marry him? Tremblingly she waited
+for what he had to say.
+</p>
+
+<p>
+“Jane,” he said, “you know that I love you. I am confident, too, that you love
+me.”
+</p>
+
+<p>
+“I don’t love you,” she forced her unwilling lips to say. “I can’t. When our
+country is at war, when she needs men, brave men, how could any true American
+girl love any man who stayed at home, who idled about the hotels, who—”
+</p>
+
+<p>
+“Girl,” his voice grew suddenly stern and commanding, softening a little as he
+repeated her name, “Jane, dear, let me finish. I love you. There are grave
+reasons—all-important reasons—why I may not now ask you to be my wife.”
+</p>
+
+<div class="fig" style="width:100%;">
+<a name="illus01"></a>
+<a href="images/illus01.jpg">
+<img src="images/illus01.jpg" width="467" height="650" alt="Illustration:" /></a>
+<p class="caption">She could not bring herself to tell him, the man she loved,
+the thing she knew he was.</p>
+</div>
+
+<p>
+“I never could be your wife,” she cried desperately, “the wife of a—”
+</p>
+
+<p>
+The word died in her throat. She could not bring herself to tell him, the man
+she loved, the thing she knew he was.
+</p>
+
+<p>
+“My Jane,” he said, wholly unheeding her impassioned protest, “you know little
+yet of what life means in this great world of ours. You, here in your parents’
+home, sheltered, protected, inexperienced, have not the knowledge nor the means
+of judging me. You must take me on faith, on the faith of your love for me. For
+a woman, life holds but two great treasures, two loves—her husband’s and her
+children’s. With a man it is different. Love is his, too, but there is
+something more, something bigger—duty. Here in your country—”
+</p>
+
+<p>
+Even in her distress she caught his phrase “here in <i>your</i> country” and
+turned ghastly white. Always before in talking with her he had spoken of
+himself as an American. Did he realize, she wondered, that he had at last
+betrayed himself to her? Was he about to strip the mask from himself and his
+activities at last, and in the face of it all expect her, Jane Strong, to admit
+that she loved him?
+</p>
+
+<p>
+“Here in your country,” he went on placidly, “women forced by economic
+conditions have been driven from home into business, into politics, into
+office-holding, even into war activities. Longing for the clinging arms of
+little children they are striving to forget in assuming some part in the
+affairs that belong properly to men. But to the true woman love must ever mean
+more than duty, more than country. Those are words for men. A woman, if she
+would find happiness, must follow her heart, must forsake all for the man she
+loves. A woman’s duty is only to the man she loves, just as a man’s duty is to
+be true to himself, to his country.”
+</p>
+
+<p>
+“But,” she cried, “you told me you were American, that you were born here?”
+</p>
+
+<p>
+“Jane,” he persisted, with an impatient gesture, “we will not discuss that now.
+I love you. You must trust me in spite of everything. I know you will. You
+must. I can answer no questions. I can make no explanations. I can only say I
+love you. That must suffice.”
+</p>
+
+<p>
+“No, no,” she protested, almost sobbing.
+</p>
+
+<p>
+“I came here to-day,” he went on calmly, “to ask a favor of you.”
+</p>
+
+<p>
+“A favor,” she cried.
+</p>
+
+<p>
+Calming herself she forced herself to look into his face. There was something
+so monstrously unbelievable about his audacity that she could hardly believe
+her ears. What sort of a credulous stupid creature was he, she angrily asked
+herself, that in one breath he could all but confess to her that he was a spy
+and in the next beseech her to do him a favor. Yet there came to her now a
+remembrance of her duty to her country. She felt that she must mask her
+feelings toward him, that if she was to be of service she must endeavor bravely
+to lead him on. She must try to induce him to confide in her. Hard as her task
+might be, what was it compared to the work her brother and those other brave
+American boys had undertaken facing the fire of death-dealing guns, facing the
+terrible gas attacks, living for days and weeks in those terrible trenches?
+Reinforced by a sense of duty, she made a pitiable effort at cordiality as she
+asked:
+</p>
+
+<p>
+“What is it you wish of me?”
+</p>
+
+<p>
+From one of his pockets he had brought forth a small packet which he held out
+to her. In spite of her agitation she forced herself to study it observingly,
+making note that it was tied with strong cord and sealed in several places with
+red wax. Curiously, too, she noted that on it was written her own name.
+</p>
+
+<p>
+“Jane,” said Hoff, “to-night I am going away. I may be absent for only a day or
+two if all goes well, but it is possible I may never come back,—may never be
+able to see you again.”
+</p>
+
+<p>
+She caught her breath sharply. There was the solemnity of finality in his
+tones. Where was he going? What might happen to him? She realized that the
+journey he was about to make was in connection with the plot that she and Chief
+Fleck were seeking to uncover. Evidently he anticipated peril in what he was
+about to undertake. Suppose he should be trapped in the commission of some act
+inimical to America’s welfare? What would happen to him? He would be arrested,
+of course. More than likely he would be sent to prison. He might even be shot
+as a spy. What if she were the one responsible for his meeting a disgraceful
+death? How could she go on with it? She must warn him. She must try to persuade
+him to give up his plans. She tried hard to steady herself, to think calmly.
+She must listen to every word he was saying and try to remember it.
+</p>
+
+<p>
+“This little packet is for you,” he went on. “I want you to keep it safely. In
+case anything happens, in the event that within one month I have not returned
+and you have heard nothing of me, I wish you to open it and keep what it
+contains. Promise me that you will do what I ask.”
+</p>
+
+<p>
+In a panic of indecision she got up from her chair, trying to frame a score of
+questions, but none of them succeeded in passing the barrier of her trembling
+lips.
+</p>
+
+<p>
+“Promise me,” he said softly yet impellingly, as he placed the little packet in
+her hand and closed her fingers over it.
+</p>
+
+<p>
+“I promise,” she whispered, hardly knowing what she said.
+</p>
+
+<p>
+Quickly he caught her in his powerful arms. For just a second he held her
+there, his face close to hers, his blue eyes burning into hers with a steady
+inscrutable gaze as if he was trying to read in them the love her lips had
+refused to speak.
+</p>
+
+<p>
+Then, so quickly that it was all over before she quite realized what had
+happened, he had kissed her passionately full on the lips and was gone.
+</p>
+
+<p>
+Overcome with the lassitude which follows emotional crises, trembling in every
+limb, weak as from a long illness, the girl sank back into a chair, still
+clutching in her hand the sealed packet Hoff had entrusted to her. Minute after
+minute she sat there with staring eyes, with heart beating madly, with her
+whole body racked with the torment of her thoughts.
+</p>
+
+<p>
+Slowly she lifted the packet and turned it over and over, wondering what it
+could possibly contain, questioning herself as to what could have been Frederic
+Hoff’s motive in entrusting it to her. Was there, she wondered, under those
+seals, some evidence of his guilt and treachery that he had not dared to leave
+behind him? He must have known that she suspected him and was seeking to entrap
+him. Had he, knowing all this, but sensing the love for him that he had kindled
+in her, taken advantage of it and extorted from her her promise to keep it
+safe?
+</p>
+
+<p>
+Wherein lay her duty now? More than ever she was certain that Frederic Hoff was
+on some hazardous mission for the enemy. He had all but admitted his
+nationality to her. Her own country’s welfare demanded that the Hoffs’ plans
+should be discovered and thwarted. Should she, or should she not open the
+package? Possibly it contained some secret code, some clue to the dastardly
+activities in which he and his uncle were engaged.
+</p>
+
+<p>
+But her heart rebelled. She recalled what he had said, that she must take him
+on trust. The memory of his burning kiss, of that last earnest look he had
+given her, refused to be forgotten. Whatever he was, however base the work in
+which he was engaged, she knew down deep in her heart that Frederic Hoff had
+been earnestly sincere when he had said that he loved her.
+</p>
+
+<p>
+As she debated with herself what she ought to do, the telephone rang again. It
+was Chief Fleck.
+</p>
+
+<p>
+“Can you meet me at the 110th Street subway station in half an hour?” he asked.
+“I’ll be waiting in my car. Arrange it, if you can without arousing your
+family’s suspicion, to be away all night.”
+</p>
+
+<p>
+“I will be there,” she answered.
+</p>
+
+<p>
+As she turned away from the telephone with sudden resolve she thrust the sealed
+packet, still unopened, into the bosom of her gown.
+</p>
+
+<p>
+“I promised him,” she said almost fiercely. “I’ll keep my promise. That much at
+least I owe our love.”
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_XIV"></a>CHAPTER XIV<br/>
+THE MOUNTAIN’S SECRET</h2>
+
+<p>
+In a turmoil of mental anxiety Jane waited the arrival of Chief Fleck at the
+place he had designated. She was still badly wrought up by the scene through
+which she had just passed with Frederic. There were moments when her heart
+insisted that, regardless of the despicable crimes that were laid at his door,
+she should forsake everything for him, for the man she loved. Had there been in
+her mind the slightest possible doubt as to his guilt she might indeed have
+wavered, but the evidence of his treachery seemed too manifest! She loathed
+herself for caring for him and felt it her sacred duty to go on with her work
+of aiding the government in trying to entrap both of them; yet how could she
+ever do it?
+</p>
+
+<p>
+As she waited she debated with herself whether or not to tell Chief Fleck what
+had passed between herself and Frederic. After all, why should she? That was
+her own secret, not the country’s. If she stifled her love, and gave her best
+efforts to aiding the other operatives in running down the conspirators, what
+more could be expected of her? Certainly she was not going to tell any one of
+the sealed packet Frederic had entrusted to her. She had promised him she would
+keep it safe. Surely there could be no harm in that, yet the little parcel,
+still in the bosom of her gown where she had thrust it, seemed to be burning
+her flesh and searing itself into her very soul.
+</p>
+
+<p>
+In strong contrast with her own spirit of martyrdom was Fleck’s manner. Never
+before had she seen him in such high spirits as he was when he drew up before
+the subway station in a low car built for speed. On the seat beside the
+chauffeur was a young man whom she recognized as another of the operatives. As
+Fleck swung the door of the tonneau open for her she noticed lying on the floor
+under a rug several rifles and drew back questioningly.
+</p>
+
+<p>
+“Come on, Miss Strong,” he cried gaily. “Don’t be afraid of them. We may be
+glad we have them before we return from our hunting expedition.”
+</p>
+
+<p>
+“But,” she asked hesitatingly as she took her seat beside him, “you don’t
+expect to shoot these men—without a trial.”
+</p>
+
+<p>
+Her heart seemed torn in anguish as she sensed anew the peril that lay ahead
+for Frederic. Misgivings that she might be unable to fulfil her task seized
+her, and she was smitten with reproach for her own conduct toward him. Why, an
+hour ago, when there was still opportunity, had she not warned Frederic? If he
+were really sincere in the affection he professed for her maybe she might have
+persuaded him, if not to betray his comrades, at least to abandon them and
+escape from the country. Yet even now her reason told her that any plea she
+might have made would have been worse than futile. Above and beyond his love
+for her she understood that he held sacred what he conceived to be his duty,
+his misguided duty to his erring country. It was too late now for regrets, for
+repentance, too late for her to do anything but to try to serve her country,
+cost her what it might, yet anxiously she awaited Chief Fleck’s reply to her
+question.
+</p>
+
+<p>
+“Wouldn’t I shoot them all on sight, gladly, the damned spies,” he responded.
+“That’s the great trouble with this country, Miss Strong. We’re too
+soft-hearted and chivalrous. The Germans realize that war and sentiment have no
+place together. If killing babies and destroying churches will in their opinion
+help them win the war they do it without compunction. The civilized world
+decided that poison gas was too brutal and dastardly for use, even against an
+enemy, but that didn’t stop the Huns from using it. They put duty to Germany
+above all else, and if their country expects it are ready to rob, murder, use
+bombs, betray friends, do anything and everything, comforted by the knowledge
+that even if we do catch them at it here in this country all we will do to them
+will be put them in jail for a year or two. If I had my way I’d shoot them all
+on sight.”
+</p>
+
+<p>
+“Without any evidence—without trying them?” questioned Jane.
+</p>
+
+<p>
+“Without trial, yes—without evidence, no; but in the case of these Hoffs we
+have evidence enough to stand them both up and shoot them.”
+</p>
+
+<p>
+“Have you learned more?” she asked quickly. “Is Frederic, too, involved with
+his uncle?”
+</p>
+
+<p>
+He shot an appraising glance at her. He had been inclined to regard Dean’s
+suspicion that she was in love with the younger Hoff as the mere figment of
+jealousy, but where two young persons of the opposite sex are thrown together,
+there is always the possibility of romance. Jane colored a little under his
+searching glance, yet what he read in her face seemed to satisfy his doubts,
+and he made up his mind to take her fully into his confidence.
+</p>
+
+<p>
+“Thanks to your quick wit in reading those advertisements,” he said, “we have
+now a fairly complete index of the Hoffs’ activities in the last six months. I
+have been spending the last two hours in going over all the Dento
+advertisements that have appeared. For weeks they have been sending out a
+regular series of bulletins.”
+</p>
+
+<p>
+“Bulletins about what?” asked Jane.
+</p>
+
+<p>
+“About everything of interest to the secret enemies of our country:
+explanations of where and how to get false passports, detailed statements of
+the sailings of our transports, directions for obtaining materials for making
+bombs, instructions for blowing up munition plants, suggestions for smuggling
+rubber, orders for fomenting strikes. They even had the nerve to use the name
+of William Foxley, signed to a testimonial for Dento.”
+</p>
+
+<p>
+“Who is William Foxley?” asked Jane curiously.
+</p>
+
+<p>
+“In the Wilhelmstrasse code that was in use when Von Bernstorff was still in
+this country; in sending their wireless messages they made frequent use of
+proper names which had a code meaning. Boy-ed was ‘Richard Houston,’ Von Papen
+was ‘Thomas Hoggson’ and Bolo Pascha was always mentioned as ‘St. Regis,’ In
+this same code ‘William Foxley’ always meant the German Foreign Office.”
+</p>
+
+<p>
+“But surely you did not learn this from the advertisements?”
+</p>
+
+<p>
+“Not at all. Hugo Schmidt, who was reputed to be the paymaster of the gang, was
+caught trying to burn a copy of this code at the German Club. With the records
+of their wireless messages our government managed to reconstruct the whole
+code. The use of a word or two from this code in these advertisements is most
+significant. It shows that whoever prepared these advertisements was high in
+the confidence of the German government. Only the very topnotch spies are
+likely to be permitted to know the diplomatic code.”
+</p>
+
+<p>
+“And you think, then, that Otto Hoff may be the head of the conspirators in
+this country?” said Jane.
+</p>
+
+<p>
+“Not Otto—Frederic,” said Fleck quickly. “The young man, I am certain, was the
+director, probably sent out from Berlin after the country became too hot for
+Von Papen and Boy-ed. The old man, I believe, merely carried out his orders. I
+doubt even if they are uncle and nephew.”
+</p>
+
+<p>
+“I think you are wrong about that,” protested Jane. “Whenever I was listening
+over the dictograph it was always the old man who was so bitter against
+America. It was he who talked about the wonder-workers and the necessity for
+haste. I never heard Frederic say anything—anything disloyal, that is.”
+</p>
+
+<p>
+“The fact that he knew enough to keep his mouth closed shows that he is the
+more intelligent of the two. Don’t forget, too, that at times he even dared to
+don the uniform of a British officer. You saw him yourself. Undoubtedly he is
+the more dangerous of the pair.”
+</p>
+
+<p>
+“But who read these advertisements?” asked Jane, seeking to change the subject.
+“For whom were the bulletins intended?”
+</p>
+
+<p>
+“It was one of their ways of keeping in communication with their thousands of
+secret agents all over this country. I wouldn’t be surprised if occasionally
+these advertisements were printed in Texas papers and shipped over the border
+into Mexico. We have been watching the mails and the telephone and telegraph
+lines for months, yet all the while Mexico has been sending messages across,
+telling the U-boats everything they needed to know. We never thought of
+checking up the advertising in papers in the Mexican mail.”
+</p>
+
+<p>
+“But what about the messages old Mr. Hoff left in the bookstores? Was that part
+of the plan, too?”
+</p>
+
+<p>
+“It may have been simply a duplicate method of communication in case the other
+failed. The Germans here know that they are constantly watched and take every
+precaution. We’ll land that girl as soon as we have the Hoffs safe behind the
+bars, and then we’ll soon see if Carter’s dachshund theory was right.”
+</p>
+
+<p>
+“But who,” asked Jane, “is the spy in our navy? Who signalled the Hoffs’
+apartment and supplied them with the news about our transports? Was it
+Lieutenant Kramer?”
+</p>
+
+<p>
+“Probably,” said Chief Fleck carelessly, “that is not my end of the work. It is
+up to the Naval Intelligence Bureau to clean out the spies in the navy. I’m
+after the boss-spy. After we land him it will be easier to get the small fry. A
+defiant German prisoner once boasted to me that Germany had a man on every
+American ship, in every American regiment, and in every department in
+Washington. I suspect it comes pretty near being true. A country that has so
+many citizens with German names and such an enormous population of German
+descent has its hands full.”
+</p>
+
+<p>
+As they talked the chief’s car had crossed the ferry, and turning north through
+Englewood, was heading rapidly in the direction of West Point.
+</p>
+
+<p>
+“Where are we going now?” Jane ventured to ask. “To the place where I was
+yesterday—where we had the accident?”
+</p>
+
+<p>
+“Not directly,” the chief replied. “I sent Carter and some men up there ahead
+of us to do some reconnoitering. I’ll get in touch with Carter at the
+restaurant at the State Park. He was to call me up. We are nearly there now.”
+</p>
+
+<p>
+As the car swung into the park and stopped before the entrance of the two-story
+restaurant building, Fleck sprang hastily out and started for the telephone but
+stopped abruptly at the sight of a young man with bandaged head and with one
+arm in a sling who rose from the concrete steps of the building to greet him.
+</p>
+
+<p>
+“Why, Dean,” he exclaimed in amazement, “what are you doing here? How did you
+get here?”
+</p>
+
+<p>
+“You don’t think I was going to be left out at the finish,” laughed the
+chauffeur.
+</p>
+
+<p>
+“But your injuries, your arm—”
+</p>
+
+<p>
+“Both all right, as right as they’ll be for several weeks.”
+</p>
+
+<p>
+“But how did you know we were coming here? How did you manage to get here?”
+</p>
+
+<p>
+“Carter stopped on his way out to make sure about the road. I wanted to come
+with him, but there was no room in his car. He refused to bring me, anyhow. I
+managed to worm out of him what your plans were, and the doctor’s jitney did
+the rest.”
+</p>
+
+<p>
+“Well,” growled the chief, with simulated indignation, though secretly
+delighted with Dean’s show of spirit, “I suppose there’s nothing else to do but
+to take you along. Climb in there beside Miss Strong.”
+</p>
+
+<p>
+As Dean approached the car Jane rose in amazement.
+</p>
+
+<p>
+“Oh, Thomas, Mr. Dean,” she cried, “I’m so glad to see you. I was afraid
+yesterday that you had been badly hurt.”
+</p>
+
+<p>
+“It was a close shave for both of us,” he admitted, flushing with delight at
+the warmth of her greeting, “but what are you doing here? The Chief had no
+business to bring you on a trip like this.”
+</p>
+
+<p>
+All his affection for the girl had revived at this unexpected sight of her, and
+with a lover’s righteous anxiety he resented Fleck’s having exposed her to the
+probable perils of this expedition to the enemy’s secret lair.
+</p>
+
+<p>
+“They needed me,” she said simply, “to show them the way.”
+</p>
+
+<p>
+“That need exists no longer,” he protested, “since I am here. The Chief must
+send you back.”
+</p>
+
+<p>
+“Don’t be absurd,” she objected warmly.
+</p>
+
+<p>
+“But it is no place for a woman,” he insisted doggedly, kicking meaningly at
+the rifles on the floor of the car. “There may be a fight. These men are
+desperate and dangerous and more than likely will resist any attempt to arrest
+them.”
+</p>
+
+<p>
+“I want to be there to see it if they do,” said Jane calmly.
+</p>
+
+<p>
+“Please, won’t you, for my sake,” he begged, “go back home or at least wait
+here for us?”
+</p>
+
+<p>
+“I won’t,” said the girl doggedly.
+</p>
+
+<p>
+“I’ll ask the Chief to send you back.”
+</p>
+
+<p>
+“Don’t you dare,” she retorted hotly, resenting his air of protection toward
+her.
+</p>
+
+<p>
+She was glad for the presence of the two other men in the car. She sensed that
+it was only their being there that kept Dean from making a scene. There was
+nothing in his manner toward her now of the obsequious chauffeur. While she
+admitted to herself that there was no longer the necessity for his continuing
+in his fictitious character she strongly resented his loverlike jealousy for
+her welfare and welcomed the chief’s return, for she saw from his face, as he
+came running up to the car, that he had received some sort of news that had
+highly delighted him.
+</p>
+
+<p>
+Almost before he was in the car he had given orders to start, leaving no
+opportunity for Dean to make his threatened protest against Jane’s presence.
+</p>
+
+<p>
+“I got Carter on the ’phone,” Fleck explained hurriedly as they swung out of
+the park and turned northward. “He has succeeded in locating the place the
+Hoffs go every week. It is about three miles back off the road, over toward the
+river from the place where you two had that accident yesterday. Away off there
+in the woods in a deserted locality is a sort of club, the members of which are
+Austrians or Germans. They have given it out that they are health enthusiasts
+and mountain climbers, ‘Friends of the Air,’ they call themselves.”
+</p>
+
+<p>
+“Who are they really? What are they doing there?” asked Jane interestedly.
+</p>
+
+<p>
+“Carter has not had time yet to learn much about them. The place was some sort
+of a health resort or sanitarium that failed several years ago. Last summer it
+seems to have been taken over by this bunch of Germans. At times there are only
+two or three of them there, but recently the number has increased. Carter
+thinks there must be a dozen men there now.”
+</p>
+
+<p>
+“How did he locate the place?” asked Dean.
+</p>
+
+<p>
+“Carter is a real detective,” said the chief enthusiastically. “He reasoned it
+out that where there were Germans there must be beer. He scouted along the main
+road until he found a wayside saloon where, as he had shrewdly suspected, they
+got their liquid supplies. From the proprietor of the place and the hangers-on
+he had no trouble in getting the information he wanted without arousing their
+suspicions.”
+</p>
+
+<p>
+“Where is Mr. Carter now?” asked Jane.
+</p>
+
+<p>
+“He’s waiting for us a few miles up the road.”
+</p>
+
+<p>
+“He has only four men with him, hasn’t he?” questioned Dean.
+</p>
+
+<p>
+“That’s all.”
+</p>
+
+<p>
+“And there are four of us here.”
+</p>
+
+<p>
+“Three and a half,” said the chief, motioning to Dean’s bandaged arm.
+</p>
+
+<p>
+“It’s my left arm,” he retorted. “I can handle a revolver, at least, with my
+good arm.”
+</p>
+
+<p>
+“And I can shoot, too,” boasted Jane; “that makes nine of us.”
+</p>
+
+<p>
+“Nine of us against twelve of the enemy,” said the chief thoughtfully. “It
+looks like a busy evening.”
+</p>
+
+<p>
+“And don’t forget,” warned Jane, “that the Hoffs are coming up this evening. At
+least young Mr. Hoff told me this morning that he was going away this evening.
+That makes two more on the other side.”
+</p>
+
+<p>
+“And one of them,” muttered Fleck, “a mighty dangerous man.”
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_XV"></a>CHAPTER XV<br/>
+THE HOUSE IN THE WOODS</h2>
+
+<p>
+At last they had reached their goal, the place which the two spy suspects
+undoubtedly had been in the habit of visiting regularly every week for months
+past.
+</p>
+
+<p>
+Sheltered by a great rock and the underbrush about it, Jane, with Fleck and
+Thomas Dean, peered eagerly out at a dingy, weather-beaten frame structure
+which neighborhood gossip had told them was the sheltering place of the
+“Friends of the Air.” In its outward appearance at least, Jane decided, it was
+disappointingly unmysterious. It looked to her merely like a cheap summer
+boarding-house that had gone long untenanted. There was a two-story main
+building, cheaply constructed and almost without ornament, sadly crying for new
+paint, and the usual outbuildings found about such places in the more remote
+country districts.
+</p>
+
+<p>
+Still from Chief Fleck’s manner she was certain that he regarded their
+achievement in locating the place as of the highest importance. They had run
+their two automobiles noiselessly up the lane leading from the main road until
+they were perhaps half a mile distant from the house and then had concealed
+them in the woods near-by, being careful to obliterate all traces of the wheel
+tracks where they had left the lane. Making a d&eacute;tour among the trees
+they had reached their present position not more than three hundred yards away
+from the buildings. They had carried the rifles with them, and these now were
+close at hand, hidden under the log on which the three of them were sitting.
+Carter, with the other men, under Fleck’s orders, had divided themselves into
+scouting parties and had crept away through the woods to study their
+surroundings at still closer range while the waning afternoon light permitted.
+</p>
+
+<p>
+At first glance one might have been inclined to believe the buildings
+untenanted. There seemed to be no one stirring about the place, and some of the
+unshuttered windows on the second floor were broken. The only indications of
+recent occupation were a pile of kegs at the rear of the house and near-by a
+heap of freshly opened tin cans. Near one of the larger outbuildings, too, was
+a pile of chips and sawdust.
+</p>
+
+<p>
+“There does not seem to be any one about,” whispered Jane. “What do you suppose
+they do here?”
+</p>
+
+<p>
+“I can’t imagine yet,” said Fleck with an impatient shake of his head. “The
+fact that this house is important enough for the Hoffs to visit once a week
+makes it important for us to cautiously and carefully investigate everything
+about it. It may be a secret wireless plant away off here in the woods where no
+one would think of looking for it. It might be a bomb factory where their
+chemists manufacture the bombs and explosives with which they are constantly
+trying to wreck our munition plants and communication lines. Perhaps it is just
+a rendezvous where their various agents, the important ones engaged in their
+damnable work of destruction, come secretly to get their orders from the Hoffs
+and to receive payment for their hellishness accomplished.”
+</p>
+
+<p>
+“It’s all so funny, so perfectly absurd,” said Jane with a nervous little
+laugh.
+</p>
+
+<p>
+“Absurd,” cried Fleck indignantly, “what do you mean? It’s frightfully
+serious.”
+</p>
+
+<p>
+“Of course, I understand,” Jane hastened to say. “I was just thinking, though,
+how funny we are here in America, especially in the big cities. We know nothing
+whatever about our neighbors, about the people right next door to us. In one
+apartment we’ll be doing all we can to help win the war, and in the apartment
+next door the people will be plotting and scheming to help Germany win, and it
+is only by accident we find out about it. Take my own father and mother. They
+haven’t the slightest suspicion of the people next door. They would hardly
+believe me if I told them the Hoffs were German spies. They see them every day
+in the elevator. Young Mr. Hoff has been in our apartment several times. My
+mother has met him and talked with him. I was just thinking how amazed and
+horrified she will be when she hears about it and learns what I have been
+doing.”
+</p>
+
+<p>
+“You are perfectly right,” said Fleck soberly. “We are entirely too careless
+here in America about our acquaintances and neighbors. We know that we are
+decent and respectable, and we’re apt to take it for granted that everybody
+else is. We don’t mind our neighbors’ business enough. Nobody in a New York
+apartment house ever bothers to know who his neighbors are or what their
+business is, so long as they present a respectable appearance. I know New York
+people who live on the same floor with two ex-convicts and have lived there for
+three years without suspecting it. We should have here in America some system
+of registration as they have in Germany. Tenants and travelers ought to be
+required to file reports with the police, giving their occupation and other
+details. If that plan were in use here enemy spies would lack most of the
+opportunities we have been giving them.”
+</p>
+
+<p>
+“Yes,” said Dean, “you are right. I’ve lived in Germany. Over there a crook of
+any sort can hardly move without the police knowing it. Their system certainly
+has its good points.”
+</p>
+
+<p>
+“It surely has,” Fleck agreed. “If the Prussians’ character were only equal to
+their intelligence they would be the most wonderful people in the world, but
+they are rotten clear through. They have no conception of honor as we
+understand it. Only the other day I read of a Prussian officer who led his men
+in an attack on a chateau, guiding them by plans of the place he had made
+himself while being entertained in the chateau as a guest before the war.”
+</p>
+
+<p>
+“Don’t you think any of them have a sense of honor?” asked Jane in a troubled
+tone.
+</p>
+
+<p>
+Her mind had reverted, as she found it frequently doing, to Frederic Hoff and
+the sealed packet he had entrusted to her. He had professed to love her and had
+demanded that she trust him. Was it, she wondered, all a base pretense on his
+part? Was he—for Germany’s sake—taking advantage of her affection for him to
+make her the unwitting custodian of some secret too perilous for him to carry
+about with him? Perhaps that little parcel she was carrying in the bosom of her
+gown contained the code he and his uncle used? Had it not been for Dean’s
+presence she might have been tempted to take Fleck into her confidence and tell
+him of the peculiar incident, though in spite of all she knew about him she
+felt that Frederic Hoff’s feeling for her was real, and that toward her he
+always would show only respect and honor, as he always had done hitherto; and
+yet—
+</p>
+
+<p>
+Before the chief had time to answer her question Dean with a whispered “hist”
+pointed to a path in the rear of the buildings they were watching. Behind the
+house two rugged hills, their sides of precipitous rock so steep that they
+hardly afforded a foothold, came down close together, making a V-shaped cleft
+through which a narrow path ran in the direction of the river. Looking toward
+this cleft to which Dean was pointing they now saw a group of workmen
+approaching the house.
+</p>
+
+<p>
+All of them were in the garb of mechanics, yet as they approached in single
+file down the path, the quick eye of the chief noted that they were keeping
+step.
+</p>
+
+<p>
+“They’ve all of them seen service,” he muttered to himself, “either in prison
+or in the German army.”
+</p>
+
+<p>
+Some of them carried kits of tools, and they walked with the air of fatigue
+that results from a day of hard physical work. They seemed to have no suspicion
+as yet that they were under observation, for as they walked they chatted among
+themselves, the sound of their German gutturals reaching the watchers, but
+unfortunately not distinctly enough to be audible. Dean was busy counting them.
+</p>
+
+<p>
+“There are fourteen,” he announced, “two more than we were expecting to find
+here.”
+</p>
+
+<p>
+“At what do you suppose they are working?” asked Jane curiously.
+</p>
+
+<p>
+“Here comes Carter,” replied Fleck. “Perhaps he can tell us. His face shows
+that he has learned something.”
+</p>
+
+<p>
+Carter, crawling rapidly but silently through the underbrush, approached
+breathlessly, his sweaty, begrimed countenance ablaze with excitement.
+</p>
+
+<p>
+“What’s up?” asked Fleck, as soon as he was within hearing.
+</p>
+
+<p>
+“My God, Chief,” he gasped, “they’ve got three big aeroplanes out there on a
+plateau overlooking the river—three of them all keyed up and ready to start.”
+</p>
+
+<p>
+“Friends of the Air,” muttered Fleck; “so that’s what it means.”
+</p>
+
+<p>
+“They’ve evidently smuggled all the material up and built the three planes
+right here,” Carter went on. “I watched them putting on the finishing touches
+and testing the guy-wires. There is a machine shop, too, rigged up in one of
+those outbuildings. The thing that gets me is how they got the engines here.
+All the planes are equipped with powerful new engines.”
+</p>
+
+<p>
+“If there are traitors in the army and navy, why not in the aeroplane
+factories, too?” suggested Fleck. “A spy in the shipping department could
+easily change the label on even a Liberty motor intended for one of Uncle Sam’s
+flying fields. Even when it didn’t turn up where and when it was expected, it
+would take government red tape three months to find out what had become of the
+missing motors.”
+</p>
+
+<p>
+“These machines”—said Jane suddenly, “they must be the ‘wonder-workers’ old Mr.
+Hoff was always talking about.”
+</p>
+
+<p>
+“And that last advertisement we read,” Dean reminded them, “announced that the
+wonder-workers would be ready Friday. It looks as if we got here not a minute
+too soon.”
+</p>
+
+<p>
+“You bet we didn’t,” said Carter. “Every one of those three planes is fairly
+loaded down with big bombs, scores of them.”
+</p>
+
+<p>
+“To bomb New York,” said Fleck soberly; “that’s their plan. Zeppelins for
+England, big guns to shell Paris, bombs from the air for New York. It’s part of
+their campaign to spread frightfulness, to terrorize the world. Undoubtedly
+that is the reason Berlin sent Frederic Hoff over here, to superintend the
+destruction of the metropolis. There have been whispers for months and months
+that the city some day was to be bombed, but we never were able to discover
+their origin.”
+</p>
+
+<p>
+“And not a single anti-aircraft gun or anything in the whole city to stop them,
+is there?” cried Jane. “Wouldn’t it be terrible?”
+</p>
+
+<p>
+Fleck smiled grimly.
+</p>
+
+<p>
+“Any foolhardy German who tries to bomb New York from the air has a big
+surprise coming to him—a lot of big surprises. The war department may not have
+been doing much advertising, but it has not been idle.”
+</p>
+
+<p>
+“Then we have some anti-aircraft guns!” cried Jane delightedly. “I never heard
+anything about them.”
+</p>
+
+<p>
+“That would be telling government secrets,” said Fleck, smiling mysteriously,
+“but I’d just like to see them try it. I have sort of a notion to let them
+start their bombing.”
+</p>
+
+<p>
+“Oh, no, we mustn’t,” Jane insisted. “We mustn’t let those aeroplanes ever
+start. Can’t we do something right away to cripple them?”
+</p>
+
+<p>
+“There’s plenty of time,” the chief assured her. “It is best for us to wait
+until after dark. The early morning would be ideal time for an aerial attack on
+the city, when everybody is helpless and asleep. There’s generally a fog over
+the river and harbor, too, before sunrise at this season of the year, and that
+might help them to mask their movements. It would take an aeroplane less than
+an hour to reach the city from here, so that there is no likelihood of their
+starting until long after midnight. That gives us plenty of time, and besides
+we must wait until the Hoffs arrive.”
+</p>
+
+<p>
+“That will make two more—sixteen of them against our nine,” warned Dean.
+</p>
+
+<p>
+“We cannot help it how many of them there are,” said Fleck. “It is of vital
+importance for us to know just what their plans are. It is unlikely that they
+will post guards to-night in this secluded spot, where they have been at work
+in safety for months. As soon as it is dark we can smash the aeroplanes.”
+</p>
+
+<p>
+“That will be easy,” said Carter. “I know something about aeroplanes. Cut a
+couple of wires, and they are out of business. Sills, one of my men, is posted
+on bombs, and he’ll know just how to fix the fuses to render them useless.”
+</p>
+
+<p>
+“What’s more,” said Fleck, “if I understand German thoroughness, they will go
+over their final plans in detail to make sure that everything is understood.
+The darkness will let us slip up closer to the house, and we may be able to
+overhear what they say. Don’t forget, too, that our main job is to catch the
+Hoffs red-handed.”
+</p>
+
+<p>
+“That’s right,” said Dean. “They are the brains of the plot. These other
+fellows are just workmen taking orders.”
+</p>
+
+<p>
+“I’m puzzled,” said Fleck, “to know what they plan to do with the aeroplanes
+after the bombing has taken place. There is not one chance in a thousand of
+their being able to return here in safety without discovery. It will be sure
+death for the aviators that take up those machines.”
+</p>
+
+<p>
+“Sure death!”
+</p>
+
+<p>
+With a shudder Jane recalled what Frederic had said to her only a few hours ago
+as they parted—that he was going away and might never return. Was this what he
+had meant? Was he, Frederic, to be one of the foolhardy three who proposed to
+forfeit their lives in this desperate attempt to deal destruction from the air
+on a sleeping city, to wreck innocent homes, to cripple and maim and destroy
+helpless babies and women? She could not, would not believe it of him. That he
+had the courage and daring to undertake such a perilous task she did not doubt.
+She realized, too, that the controlling motive of all his actions was his high
+sense of duty toward his country, and yet in spite of all that she had learned
+about the plots in which she was enmeshed, her heart refused to believe that he
+ever could bring himself to participate in such wanton frightfulness. She
+recalled the spirit of mercy that he had shown toward herself and Thomas Dean
+after the accident as contrasted with the brutal indifference of his uncle. She
+kept hoping against hope that something might happen to prevent his arriving
+here. Devoutly she wished that she might awake and find that it was all a
+terrible mistake, a hideous unreality, and that the “Friends of the Air” were
+not in any way associated with the Hoffs.
+</p>
+
+<p>
+Yet her reason told her it must all be true, terribly, infamously true, and
+that he was one of them, perhaps the leader of them.
+</p>
+
+<p>
+One by one the members of the various scouting parties had come creeping in
+through the forest. All of them verified what Carter had already reported. One
+man, more venturesome than the others, had even dared to creep close up to the
+rear of the house and had seen through the window the workmen, gathered about
+their supper of beer and sausages, toasting the Kaiser with the unanimity of a
+set formality.
+</p>
+
+<p>
+As the light waned, secured from observation by the undergrowth between their
+position and the house, they sat there discussing plans of action, selecting
+while the light still permitted the most advantageous posts from which they
+could make a concerted rush on the plotters. Fleck was insistent that they
+should do nothing to betray their presence until after the Hoffs had arrived,
+and Dean once more voiced his protest against Jane taking part in the attack.
+“I will be of far more use than you with your crippled arm,” she resentfully
+insisted. “I can handle a revolver as well as any man, and a rifle, too, if
+necessary.”
+</p>
+
+<p>
+“Dean is right,” Fleck decided. “It is no work for a woman. Here is an
+automatic, Miss Strong. You will stay here until after we have rounded them up.
+If we get the worst of it, which is not likely to happen, make your way to the
+automobile and telephone the commandant at West Point.”
+</p>
+
+<p>
+Reluctantly Jane assented. She realized that further protest was useless. Fleck
+was in command, and his orders must be obeyed unquestioningly if their plans
+for the capture of the plotters were to be successfully carried out.
+</p>
+
+<p>
+Presently they heard in the distance the sound of an automobile approaching,
+and soon they could distinguish its lights as it negotiated the rough, winding
+woodland road that led to the house. A toot from the horn as it arrived brought
+the men within the house tumbling out the front door with huzzas of greeting
+for their leaders, and Fleck observed that all the men as they came out
+automatically raised their hands in salute.
+</p>
+
+<p>
+“Ex-German soldiers, every one of them,” he muttered.
+</p>
+
+<p>
+As the Hoffs got out of the car a shaft of light from the opened front door
+threw the figures of the new arrivals into sharp relief, and Jane saw, with a
+shudder of terror, that Frederic was dressed in an aviator’s costume. There was
+no longer any doubt left in her mind that he was one of those going to certain
+death, and a dry sob choked her.
+</p>
+
+<p>
+The Hoffs passed within the house, and the door was closed.
+</p>
+
+<p>
+“Now,” cried Fleck, “to your stations, men. Each of you take a rifle. You stay
+here, Miss Strong. Come on, Carter.”
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_XVI"></a>CHAPTER XVI<br/>
+THE ATTACK ON THE HOUSE</h2>
+
+<p>
+In accordance with instructions already issued two of Fleck’s men rushed for
+the front of the house, where with rifles ready they stood guard, while the
+others took cover in the shadow of one of the outbuildings a few feet distant
+from the rear entrance.
+</p>
+
+<p>
+Apparently the plotters had been so long undisturbed in their mountain fastness
+that they had ceased to take even the most ordinary precautions against
+surprise. So far as could be discovered they had posted no guards over the
+aeroplanes and their deadly cargo, nor at either of the two doors to the main
+building. Nevertheless Fleck, as he crept stealthily up to the building with
+Carter at his side, took out his automatic and held it in readiness, and Carter
+followed his example.
+</p>
+
+<p>
+There was no moon to reveal their movements as they approached the rear of the
+house. The evening was warm, and one of the windows had been left open.
+Noiselessly they crept up to it and looked within. It opened into a large room
+used as a dining hall, where they could see all of the men clustered about one
+of the tables, at the head of which sat old Otto Hoff with Frederic at his
+side. On the table before him was what appeared to be a rough map or blueprint.
+Frederic and five of the other men, Fleck observed, now wore aviation costumes.
+</p>
+
+<p>
+“Comrades,” old Otto was saying in German, “here is the course. You will have
+no difficulty in following it. Down the river straight till you see the lights
+of New York. You each understand what you are then to do, yes?”
+</p>
+
+<p>
+“Certainly,” three of the men, the pilots evidently, responded.
+</p>
+
+<p>
+“Let us, to make sure,” old Otto insisted, “once more rehearse it. Much there
+is at stake for the Fatherland. You, Anton and Fritz, will blow up the
+transports and the warships that guard them. Six great transports are lying
+there, ready to sail at daylight The troops went aboard to-night. We waited
+until it was signalled that it was so. You must not fail. The biggest of those
+transports once belonged to Germany. You must teach these boastful Americans
+their lesson. That one boat you must destroy for certain. Beside the transports
+to-night lie five vessels of war, two battleships, three cruisers. Them you
+must destroy also, if there is time. To each transport, two bombs, to each
+warship, two bombs—twenty you carry. If all goes well, two you will have left.
+With these do what you will, a house, a church, it matters not—anything to
+spread the terror of Germany in the hearts of these money-grabbing Americans.”
+</p>
+
+<p>
+“It will be done,” said Anton solemnly.
+</p>
+
+<p>
+“I have thrown bombs before. You can trust me,” said Fritz.
+</p>
+
+<p>
+“You, Hans and Albert,” old Otto went on, “will fly over the city at good
+height. When you reach the end of the island you turn to the left, so, and come
+down close that your aim may not miss. Here will be the Brooklyn Navy Yard,”—he
+indicated a place on the map. “If there is fog the bridges will locate it for
+you. Smash the ship lying there, the shops, the dry docks; if it is possible
+blow up the munitions stored there.”
+</p>
+
+<p>
+“I know the place well,” Hans replied. “I worked there many months. I can find
+my way in the dark. It will be done.”
+</p>
+
+<p>
+“And to you, Herr Captain,” said Otto, turning to Frederic and saluting, “to
+you, whom the War Office itself sent here to oversee this all-wonderful plan of
+mine which it has seen fit to approve, to you and your mate falls the greatest
+honor and glory. You—”
+</p>
+
+<p>
+A suppressed sob at his side caused Fleck to turn quickly and lay his finger on
+the trigger of his revolver. There, close beside him, listening to all that had
+been said, was Jane. Left alone in the darkness she had found it impossible to
+obey the chief’s orders and remain where she was. Every little sound about her
+had carried new terrors to her heart. Hitherto she had not felt afraid, but the
+solitude filled her mind with wild imaginings. She was seized, too, by an
+irresistible desire to know what part Frederic was playing in this drama of the
+dark. Was his life in peril? Were Fleck and Carter now gathering evidence that
+would bring about his conviction, perhaps his shameful death? She must know
+what was happening. Quietly she had stolen up to peer through the window.
+</p>
+
+<p>
+Fleck, as he recognized her, with an angry gesture of warning to be silent,
+turned back to hear what Otto was saying.
+</p>
+
+<p>
+“—you, Frederic, have the glory of leading the expedition, of bombing that
+damned Wall Street which alone has kept Germany from winning her well-deserved
+victory. You will destroy their foolish skyscrapers, their banks, their
+business buildings. Your work will end this way. You will strike terror into
+the cowardly hearts of these American bankers whose greed for money has led
+them to interfere with our great nation’s rightful ambition. You shall show
+them that their ocean is no protection, that the iron hand of our Kaiser is
+far-reaching. Do your work well, and they will be on their knees begging us for
+peace.”
+</p>
+
+<p>
+“God helping me,” said Frederic, “I will not fail in my duty to my country.”
+</p>
+
+<p>
+There was something magnificent in his manner as he spoke, something almost
+regal, and Fleck regarded him with a puzzled air. Who was he, this man who had
+been sent out from Germany on this mission—this man to whom even old Otto paid
+deference? Despite the assurance with which he had spoken Fleck had observed in
+Frederic an uneasiness, a watchfulness, that none of the others seemed to
+exhibit. He had the appearance of alertly listening, listening, for what?
+Fleck’s first thought was that he might have overheard the little cry that Jane
+had inadvertently given, but he quickly dismissed this theory. If Frederic had
+heard that sound it would have alarmed him, and the look in his eyes now was
+one of expectancy rather than of fear.
+</p>
+
+<p>
+Jane, too, was puzzled and distressed. With trembling hands she clutched at the
+sill of the window for support as she heard Frederic assent to old Otto’s plans
+for him. Her estimate of his character made it seem incredible that he would
+willingly lend himself to this work of wholesale murder, yet she could no
+longer doubt the evidence of her own ears. With overwhelming force it came to
+her that this man who so readily agreed to such bloody, dastardly work as this,
+must undoubtedly be also the murderer of that K-19 whose body had been found
+just around the corner from her home. Bitterly she reproached herself that she
+had allowed herself to care for him. Shamedly she confessed to herself that she
+still loved him—even now.
+</p>
+
+<p>
+“Your great work accomplished,” Otto continued, “remember your orders. Forty
+miles due east of Sandy Hook there will be lying two great submarines, waiting
+to take you off—not U-boats, but two of our powerful, wonderful new X-boats,
+big enough to destroy any of their little cruisers that are patrolling the
+coast, fast enough to escape any of their torpedo boats. How important the war
+office judges your work you may realize from this—it is the first mission on
+which these new X-boats have been dispatched. They are out there now. We have
+had a wireless from them. They are waiting to convey six heroes back to the
+Fatherland, where the highest honors will be bestowed on them at the hands of
+our Emperor himself. Herr Captain and Comrades—”
+</p>
+
+<p>
+He stopped abruptly, and there came into his face a pained look of surprise, of
+terror.
+</p>
+
+<p>
+<i>“Was is dass?</i>” he cried in alarm.
+</p>
+
+<p>
+One of Fleck’s men in hiding out there in the shadow of the building had been
+seized by an irresistible desire to sneeze.
+</p>
+
+<p>
+The terrifying suspicion that there had been some uninvited spectator outside,
+listening to their plotting, swept over the whole room. The whole company,
+hearing the sound that had alarmed old Hoff, arose as one man and stood tensed,
+stupefied with fear, gazing white-faced in the direction from which the sound
+had come.
+</p>
+
+<p>
+Fleck, rudely brushing Jane aside, dropped back from the window and blew a
+sharp blast with a whistle. At the sound his men came running up with their
+rifles ready.
+</p>
+
+<p>
+Inside, the man called Hans, seizing an electric torch, dashed to the door, and
+pulling it wide, rushed forth, his torch lighting the way before him. Before he
+even had time to see the men gathering there and cry an alarm, a blow from the
+butt of Carter’s revolver stretched him senseless on the stoop.
+</p>
+
+<p>
+“In the name of the United States I command you to surrender,” cried Fleck,
+springing boldly into the open doorway, revolver in hand; “the house is
+surrounded.”
+</p>
+
+<p>
+Instantly all within the room was confusion. Some of those nearest the door,
+seeing behind Fleck the protruding muzzles of the guns, promptly threw up their
+hands in token of surrender. Others bolted madly for the front door, only to
+find their egress there blocked by the rifles in the hands of the guard that
+Fleck had had the foresight to station there.
+</p>
+
+<p>
+Old Otto, the pallor of fear on his face giving away to an expression of
+demoniac rage, drew a revolver and aimed it straight at Fleck. Jane, who
+unbidden had followed the raiders as they entered and now was standing
+wide-eyed in the doorway watching the spectacle, was the only one to see that
+just as old Otto pulled the trigger his nephew, whether by accident or design,
+she could not tell, jostled his arm, sending the bullet wide of its mark.
+</p>
+
+<p>
+“Come on, men,” cried Fleck, advancing boldly into the room.
+</p>
+
+<p>
+Eight of the Germans, piteously bleating “Kamerad” stood against the wall near
+the door, their hands stretched high above their heads.
+</p>
+
+<p>
+“Guard these men, Dean,” cried Fleck, as with Carter close at his side he
+dashed into the fray.
+</p>
+
+<p>
+One man already lay senseless outside, eight had surrendered. Four had fled to
+the front of the house. That left only the two Hoffs and one other man against
+five of them. It was Fleck’s intention to try to overpower the trio before the
+four who had fled returned to aid them. Jane, amazed at her own coolness, stood
+beside Dean, her revolver out, helping him guard the prisoners.
+</p>
+
+<p>
+Frederic all the while had been standing by his uncle’s side, strangely enough
+appearing to take little interest or part in the battle. Old Otto, though,
+despite his years, was fighting with vigor enough to require both the work of
+Fleck and Carter to subdue him. Vainly he struggled to wrench himself free from
+their grasp and use his revolver again. Fleck’s strength pulling loose his
+fingers from the weapon was too much for him. As he felt himself being
+disarmed, in a frenzy he tore himself loose from both of them and seizing a
+chair, swung it with all his strength against the hanging lamp above the table
+that supplied the only light in the room.
+</p>
+
+<p>
+In an instant the room was in darkness. The four from the front, rushing back
+to aid their comrades in answer to old Otto’s cries, found themselves unable to
+distinguish friend from foe. Fleck’s men dared not use their weapons in the
+darkness. Back and forth through the room the opposing forces struggled, the
+air thick with cries and muttered oaths, the sound of blows making strange
+medley with the rapid shuffling of feet.
+</p>
+
+<p>
+Jane, remembering the electric torch that had been carried by the man Carter
+had struck down, felt her way to the door and retrieved it from his senseless
+fingers. Returning, she flashed it about the room, endeavoring to assist Fleck
+by its light. As she let the beam fall on Frederic she heard a muttered curse
+at her side and turned to see Thomas Dean aiming his revolver directly at the
+younger Hoff. With a quick movement she thrust up his arm, and the bullet
+buried itself in the wall above his head.
+</p>
+
+<p>
+“What are you trying to do,” snapped Dean; “help that damned spy to escape?”
+</p>
+
+<p>
+“He wasn’t trying to escape,” she angrily retorted. “Look—quick—mind your
+prisoners.”
+</p>
+
+<p>
+He turned just in time to see the Germans behind him lowering their arms. In
+another second they would have been on his back. At the sight of his brandished
+revolver, their arms were quickly raised again.
+</p>
+
+<p>
+Meanwhile Fleck’s men, guided by Jane’s light, were laying about them with
+their rifles clubbed. The plotters were at a disadvantage in not realizing how
+few there were in the attacking party. Fleck’s announcement that the house was
+surrounded had both deceived and disheartened them. When three of their number
+had been knocked senseless to the floor the others surrendered and joined the
+group that stood with hands up.
+</p>
+
+<p>
+To Fleck’s amazement it was Frederic Hoff who led in the surrender.
+</p>
+
+<p>
+“Watch that young Hoff,” he whispered to Carter. “I can’t understand his giving
+up so easily. It may be only a ruse on his part.”
+</p>
+
+<p>
+“Perhaps he’s afraid the girl will be hurt,” whispered Carter, but Fleck was
+not there to hear him, having dashed forward to where old Otto was still
+fighting desperately.
+</p>
+
+<p>
+Somehow in the melee the old man had again got hold of a revolver, and just as
+Fleck seized him he fired again. The bullet, aimed at Fleck, left him unharmed,
+but found a mark in Thomas Dean, who with a little gurgling cry, fell forward
+at Jane’s feet. Carter turned at once to guard the prisoners, as Fleck, with a
+cry of rage, felled old Hoff to the floor, harmless for the present at least.
+</p>
+
+<p>
+Sending one of his men to the other rooms in search of lamps Fleck soon had all
+the prisoners safely shackled, both hand and foot, none of them offering any
+resistance. Investigation showed that old Hoff in falling had struck his head
+in such a way that his neck was broken, killing him instantly. The three who
+had been clubbed were not seriously injured, and as soon as they revived were
+shackled as the others had been.
+</p>
+
+<p>
+Jane, seeing Dean collapse, had turned to aid him and for some time had been
+bending over him, trying to revive him. He had opened his eyes, looked up into
+her face and had tried to say something, and then had collapsed, dying right
+before her eyes.
+</p>
+
+<p>
+“Take the Hoffs’ car outside,” Fleck directed some of his men, “and bring up
+our two cars at once. Carter and I’ll guard the prisoners until you get back.
+There’s a county jail only a few miles away. The sooner we get them there the
+better it will be. It won’t take any court long to settle their fate. They got
+Dean, didn’t they?”
+</p>
+
+<p>
+“Yes,” said Jane, getting up unsteadily from the floor, “I think he’s dead.”
+</p>
+
+<p>
+Fleck bent to examine the body of his aide, feeling for the pulse.
+</p>
+
+<p>
+“Too bad,” he murmured. “That last bullet of old Hoff’s got him, but he died in
+a good cause.”
+</p>
+
+<p>
+Jane, brushing away the tears that came welling unbidden into her eyes, turned
+now for the first time since his surrender to look at Frederic.
+</p>
+
+<p>
+She had expected as she looked at him lying there shackled on the floor to read
+in his expression humiliation at his plight, grief at the failure of his effort
+to aid Germany, possibly reproach for her in having aided in entrapping him. To
+her amazement there was nothing of this in his face.
+</p>
+
+<p>
+As he lay there on the floor he was observing her with a tender look of love,
+and in his eyes what was still more puzzling was an unmistakable expression of
+triumph and happiness.
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_XVII"></a>CHAPTER XVII<br/>
+SOMETHING UNEXPECTED</h2>
+
+<p>
+Bewildered by the rapidity with which such a succession of terrifying events
+had taken place, Jane sank dazedly into a chair, trying her best to collect her
+thoughts, as she looked about on the recent scene of battle. All of the German
+plotters had been overcome and captured. There, dead on the floor, lay the arch
+conspirator, old Otto Hoff, his clammy face still twisted into a savage
+expression of malignant, defiant hate.
+</p>
+
+<p>
+And there, too, a martyr to the country’s cause, lay Thomas Dean. A sob of pity
+rose in Jane’s throat as she thought of him, and the great tears rolled
+unchecked down her cheeks. He was so young, so brave, so fine. Why must Death
+have come to him when there was yet so much he might have done? With his talent
+and education, with his wonderful spirit of self-sacrifice, he might have gone
+far and high. Regretfully, she recalled that he had loved her, and with kind
+pity in her heart she reproached herself for not having been able to return to
+this fine, clean, American youth the affection she had inspired in him.
+</p>
+
+<p>
+Thomas Dean, she told herself, was the type of man she should have loved, a man
+of her own people, with her own ideals, a man of her country, her flag, and
+yet—
+</p>
+
+<p>
+There on the floor, not a dozen feet away from her, shameful circlets of steel
+girdling both his wrists and his ankles, lay the one man for whom she knew now
+she cared the most in all the world, the man she had just betrayed into Chief
+Fleck’s hands.
+</p>
+
+<p>
+Bitterly she reproached herself for not having tried to induce Frederic to
+escape. In mental anguish she pictured him—the man she loved—standing in the
+prisoner’s dock in some courtroom, branded as a spy, as a leader of spies,
+charged with an attempt to slaughter the inhabitants—the women and children—of
+a sleeping, unprotected city. With growing horror it came to her that in all
+probability she herself would be called on to testify against him. It might
+even be her evidence that would result in his being led out before a firing
+squad and put to an ignominious death.
+</p>
+
+<p>
+She dared not even look in his direction now. What must he be thinking about
+her? He had known that she loved him. In despair and doubt she wondered whether
+he could understand that she, too, had been influenced to perform her
+soul-wracking task by a sense of honor, of duty to her country equally as
+potent as that which had impelled him to participate in this terrible plan to
+destroy New York. Why had she not informed him that his plans were known to the
+United States Government’s agents? Surely she could have convinced him that his
+was a hopeless mission. The plot would have been successfully thwarted, and he
+would not be lying there in shackles, but, even though forced to flee, who
+knew, perhaps some day after peace had come, he might have been able to return
+for her. A great sob rose from her heart, but she stifled it back. She would be
+brave and true. She must be glad for those of her people that had been saved.
+</p>
+
+<p>
+But her parents! What would they say? Her father and mother soon now must learn
+that she had been deceiving them day after day. How horrified and amazed they
+would be to learn that the chauffeur she had brought into the household was in
+reality a government detective, and that she, their daughter, had been a
+witness of his tragic death. What would they think when they learned about her
+part in this gruesome drama that had just been enacted? They, serene in their
+trust in her, supposing she was at the home of one of her girl friends, were
+peacefully asleep in their quiet apartment. How horror-stricken her mother
+would be if she could have seen her daughter at this moment, alone at midnight
+in a mountain shack, one girl among a band of strange men—and two men stretched
+dead on the floor.
+</p>
+
+<p>
+And Frederic! Always her perturbed imaginings led back to Frederic, to the
+terrible fate that lay in store for him, to the awfulness of war that had put
+between them an impassable gulf of blood and guilt and treachery that, in spite
+of their love for each other, kept them at cross purposes and made them
+enemies. Why, she vaguely wondered, must governments disagree and start wars
+and make men hate and kill each other? What was it all for?
+</p>
+
+<p>
+In the midst of her mental wanderings she became conscious that Fleck was
+speaking to Carter.
+</p>
+
+<p>
+“I’ll stay here with Miss Strong and the prisoners,” he was saying. “While we
+are waiting for the men to return with the cars, you’d better make a search of
+the house.”
+</p>
+
+<p>
+“Why not wait until daylight for that?” suggested Carter.
+</p>
+
+<p>
+“It is not safe,” the chief objected. “To-night is the time to do it. A plot
+important enough to have the especial attention of the war office in Berlin
+must have many important persons involved in it. Somebody with money in New
+York, some influential German sympathizer, must have helped old Hoff set up
+these aeroplanes here and equip his shop. Some chemical plant supplied the
+material for those bombs. It must have taken hundreds of thousands of dollars
+to carry the plan to completion. Men rich enough and powerful enough to have
+put through this plot are powerful enough to be still dangerous. The minute
+word reaches the city that the plan has miscarried there will be some one up
+here posthaste to destroy or remove any damaging evidence we may have
+overlooked. Now is the time to do our searching.”
+</p>
+
+<p>
+“You’re right, Chief,” Carter admitted. “It would not surprise me if there is
+not a wireless plant here. I’ll soon find out.”
+</p>
+
+<p>
+“Let me help,” cried Jane.
+</p>
+
+<p>
+Her nerves were suffering from a sharp reaction. All through the excitement of
+the attack she had remained calm and collected, but now she felt that if she
+remained another minute in the same room with the two bodies, if she stayed
+near that row of shackled prisoners, if she should chance to catch Frederic’s
+eye, she either would burst into hysterical weeping or would collapse entirely.
+If only there was some activity in which she could engage it might serve to
+divert the current of maddening thoughts that kept overwhelming her. With
+something to do she might regain her self-control.
+</p>
+
+<p>
+“Please let me help Mr. Carter,” she begged.
+</p>
+
+<p>
+“Certainly,” said Fleck, “go ahead. You have earned the right to do anything
+you wish to-night.”
+</p>
+
+<p>
+Guided by the light of an electric torch Carter and she quickly made their way
+to the upper floor. In most of the rooms they found only cheap cots with
+blankets, evidently the sleeping quarters of the workmen, but in one of the
+rooms was a desk, and from it a ladder led to an unfinished attic. Boldly
+climbing the ladder and flashing their torch about they quickly located a
+high-powered wireless outfit. It was mounted on a sliding shelf by which it
+could be quickly concealed in a secret cupboard, but evidently the plotters had
+felt so secure from intrusion in their retreat that they had been in the habit
+of leaving it exposed.
+</p>
+
+<p>
+“I thought we’d find it,” said Carter exultantly. “It’s an ideal location, up
+here in the mountains. I’d better smash it at once.”
+</p>
+
+<p>
+“Wait,” warned Jane, thoughtfully, “they spoke of having received a wireless
+message from those dreadful X-boats lying there off the coast. If we could only
+find their code-book, perhaps—”
+</p>
+
+<p>
+“Right,” cried Carter, catching her idea at once.
+</p>
+
+<p>
+Together they descended to the room below and began ransacking the desk, Jane
+holding the light while Carter examined the papers they found.
+</p>
+
+<p>
+“Their system sometimes is bad for them,” said Carter. “Here’s a ledger with
+the names of all the men employed here and the amounts paid to each. And look,”
+he went on excitedly, “look what the stupid fools have done with their German
+methodicalness—here are entries showing all the supplies they obtained, from
+whom they got them and what they cost. There’s evidence here for a hundred
+convictions. We’ll just take that book along.”
+</p>
+
+<p>
+There was one small drawer in the desk that was locked. Ruthlessly Carter
+smashed the woodwork and pried it open. Its only contents was a small parcel, a
+folded paper in a parchment envelope. Hastily he drew forth the paper and
+studied it intently.
+</p>
+
+<p>
+“It’s a code,” he cried, “a naval code, evidently the very one they used to
+communicate with those boats. I’ll wager the Washington people even haven’t a
+copy of it. That’s a great find. Come on, we’ve got enough for one night.”
+</p>
+
+<p>
+“Do any of the men in our party understand wireless?” asked Jane as they
+descended.
+</p>
+
+<p>
+“Sure,” said Carter, “Sills does. He used to be the radio man on a battleship.”
+</p>
+
+<p>
+“Couldn’t he be left on watch here?” suggested Jane, “and try to signal those
+X-boats and keep them waiting until to-morrow night? Maybe by that time our—”
+</p>
+
+<p>
+“I get you,” cried Carter; “that’s a good idea. Explain it to the Chief.”
+</p>
+
+<p>
+As Jane unfolded her plan, suggesting the possibility of sending American
+cruisers out to search for the X-boats after Sills had lured them by false
+messages to the surface, Fleck heartily approved of it.
+</p>
+
+<p>
+“I’ll leave Sills here with one other man to guard the house,” he said. “We’ll
+have to let poor Dean’s body remain here for the present, too. We’ll need all
+the room in the cars for the prisoners.”
+</p>
+
+<p>
+There was still much to be done. While some of the men were unceremoniously
+carrying out the shackled prisoners and piling them in the cars, others, under
+Carter’s direction, crippled the three “wonder-workers” and dismantled them,
+carrying their dangerous cargo of bombs into the woods and concealing them.
+</p>
+
+<p>
+None of the prisoners, since the moment the shackles had been put on, had
+uttered a word. Sullen silence held all of them unprotestingly in its grip.
+Even Frederic kept his peace, though from time to time his glance roved about,
+seeking Jane, and always in his eyes was a strange look, not of defeat, nor of
+shame, but rather of exultant triumph. Jane still dared not trust herself to
+look in his direction, but Fleck and Carter, too, observed curiously the
+expression in his eyes. Was he, they wondered, rejoicing over Dean’s untimely
+end? Did he, with true Prussian arrogance, in spite of the failure of his plot,
+still dare to hope that with Dean out of the way, he might escape punishment
+and yet win Jane Strong? Even as they picked him up, the last of the prisoners,
+and put him in the rear seat of the chief’s car, his eyes still sought for
+Jane.
+</p>
+
+<p>
+It was long after midnight before the strange cavalcade left the mountain
+shack. Fleck’s car led the way, with the chief himself at the wheel, and Jane
+beside him. Crowded on the rear seat were Frederic and two other prisoners, and
+standing in the tonneau, facing them with his revolver drawn in case they
+should make an attempt to escape in spite of their shackles, was Fleck’s
+chauffeur. Carter was at the wheel of the second car with five prisoners and a
+man on guard, and the arrangement in the third car was the same. Six men and a
+girl to transport thirteen prisoners! Inwardly Fleck was congratulating himself
+on his forethought in having provided shackles enough to go around, for
+otherwise he surely would have had a perilous job on his hands.
+</p>
+
+<p>
+As they rode down the mountain lane, Jane rejoiced at the darkness that hid her
+face, both from Fleck and from Frederic on the seat behind. Now that there was
+no activity to distract her maddening thoughts once more paced in turmoil
+through her brain. She loved this man, and she was leading him to disgrace and
+death. She hated and despised him. He was a treacherous, dangerous enemy of her
+country whom she had helped to trap, and she was glad, glad, glad. No, no! She
+wasn’t glad. She loved him. He had given her that sealed packet and had charged
+her to keep it for him. He couldn’t be all bad. Why must she love him? Her mind
+told her he was a criminal, an enemy, a spy, a murderer, yet her wilful heart
+insisted that she loved him. How strange life was! She and Frederic loved each
+other. Why could they not marry and be happy? Why was War? Why must nations
+fight? Why must people hate each other? Was the whole world mad? Was she going
+mad herself?
+</p>
+
+<p>
+Slowly and carefully, Fleck, with his lights on full, had steered the
+automobile down the narrow roadway through the woods. He had just turned the
+car safely into the main road, and stopped to look back to see how closely the
+other cars were following. Suddenly from the wayside a dozen men in uniform
+sprang up, the glint of their guns made visible by the automobile lights.
+</p>
+
+<p>
+“Halt,” cried a voice of authority.
+</p>
+
+<p>
+The one glimpse he had caught of the uniform had conveyed to Fleck the welcome
+fact that the party surrounding him were Americans—cavalry troopers.
+</p>
+
+<p>
+“Chief Fleck,” he announced, by way of identification. “Who are you?”
+</p>
+
+<p>
+A tall figure in officer’s clothes sprang up on the running board and peered
+into Fleck’s face.
+</p>
+
+<p>
+“Thank God, Chief,” he said, “that it’s you.”
+</p>
+
+<p>
+“Colonel Brook-White,” cried Fleck in amazement, recognizing the voice as that
+of one of the officers in charge of the British Government’s Intelligence
+Service in America. “What are you doing here?”
+</p>
+
+<p>
+“Trying to round up some bally German spies,” explained Brook-White.
+</p>
+
+<p>
+“I’ve beaten you to it,” cried Fleck, with a note of triumph in his tone. “I’ve
+got them all here in shackles.”
+</p>
+
+<p>
+“Good,” said Brook-White delightedly. “I was fearful I’d be too late. There was
+delay in getting a message to me. As soon as I had it, I tried to reach you and
+couldn’t. I dared not wait but dashed up here in my car. I knew there were some
+American troopers camped near here, and I persuaded the commander to detail
+some of his men to help me. Did you really capture the Hoff chap, old Otto?”
+</p>
+
+<p>
+“He’s better than captured,” said Fleck. “He’s lying dead back there in the
+house.”
+</p>
+
+<p>
+“Good,” cried Brook-White. “He was infernally dangerous according to my
+advices—but Captain Seymour—where is he? Wasn’t he working with you?”
+</p>
+
+<p>
+“Captain Seymour?” cried Fleck in astonishment. “I never heard of him. Who’s
+Captain Seymour?”
+</p>
+
+<p>
+“He’s one of my chaps,” explained Brook-White. “Wasn’t it he who steered you up
+here?”
+</p>
+
+<p>
+“I should say not,” said Fleck emphatically.
+</p>
+
+<p>
+“Good Lord,” cried the British colonel excitedly. “You don’t suppose those
+bloody Boches got him at the last—after all he’s been through? I hope he’s
+safe.”
+</p>
+
+<p>
+“Don’t worry, Colonel Brook-White,” came the calm voice of Frederic Hoff from
+the rear seat. “Chief Fleck has me here safe in shackles with the other
+prisoners.”
+</p>
+
+<p>
+“God,” cried Fleck, in astonished perplexity. “Is Frederic Hoff a Britisher—one
+of your men?”
+</p>
+
+<p>
+“Rather,” said Brook-White. “Chief Fleck, may I present Captain Sir Frederic
+Seymour, of the Royal Kentish Dragoons.”
+</p>
+
+<p>
+But Fleck was too busy just then to heed the introduction, or to pay attention
+to the muttered “<i>Donnerwetters</i>” of indignation that burst from the lips
+of his other prisoners.
+</p>
+
+<p>
+Jane Strong had fainted dead away against his shoulder.
+</p>
+
+</div><!--end chapter-->
+
+<div class="chapter">
+
+<h2><a name="CHAPTER_XVIII"></a>CHAPTER XVIII<br/>
+WHAT THE PACKET CONTAINED</h2>
+
+<p>
+“But,” said Jane, “I can’t understand it yet. How did you, a British officer,
+happen to be living with old Otto Hoff? How did you ever get him to trust you
+with his terrible secrets?”
+</p>
+
+<p>
+Captain Seymour chortled gleefully. Now that he was arrayed in proper British
+clothes, once more comfortable in the uniform of his regiment and had his
+monocle in place and was with Jane again, everything looked radiantly
+different. Even his speech no longer retained its international quality but now
+was tinctured with London mannerisms.
+</p>
+
+<p>
+“Oh, I say,” he replied, “that was a ripping joke on the bally Dutchmen.”
+</p>
+
+<p>
+Jane eyed him uncertainly. He seemed almost like a stranger to her in this
+unfamiliar guise, though for hours she had been eagerly looking forward to his
+coming.
+</p>
+
+<p>
+The exciting developments of the night before still were to her very puzzling.
+She recalled Frederic’s identification of himself, and after that all was
+blank. When she had come to she had found herself in a motor being rapidly
+driven toward New York in the early dawn, with Carter as her escort. He had not
+been inclined to be at all communicative.
+</p>
+
+<p>
+“Let the Captain tell you the story himself,” said Carter. “He knows all the
+details.”
+</p>
+
+<p>
+“But when can I see him?” questioned Jane. “When,” she hesitated, remembering
+the shameful bonds that had held him, “when will he be free?”
+</p>
+
+<p>
+“He’s as free this minute as we are,” Carter explained. “It didn’t take the
+Chief long to get the bracelets off, after Colonel Brook-White had identified
+him. There’s a lot for the Captain to do still, but rest assured, he’ll waste
+no time getting back to the city to see you.”
+</p>
+
+<p>
+“I hope not,” sighed the girl.
+</p>
+
+<p>
+She was too weary, too weak from the revulsion of feeling that had come on
+learning that her lover instead of being a dastardly spy was a wonderful hero,
+to make even a pretense at maidenly modesty. She wanted to see Frederic too
+much to care what any one thought.
+</p>
+
+<p>
+Slipping into her home fortunately without arousing any of her family, she had
+gone to bed with the intention of getting a rest of an hour or two. Sleep, she
+was sure, would be impossible, for she felt far too excited and upset. Yet she
+had not realized how utterly exhausted she was. Hardly had her head touched the
+pillow before she was lost to everything, and it was long after noon when a
+maid aroused her to announce that Captain Seymour had ’phoned that he would
+call at three.
+</p>
+
+<p>
+As she dressed to receive him, she was wondering how she should greet him.
+Blushingly she recalled the impassioned kiss he had pressed on her lips—why it
+was only yesterday. It had seemed ages and ages ago, so much had intervened.
+Mingled with a shyness that arose from her vivid memories was also a shade of
+indignation. Why had he not told her? Did he not trust her? She resolved to
+punish him for not taking her into his confidence by an air of coldness toward
+him. Certainly he deserved it.
+</p>
+
+<p>
+Yet, when he arrived, so full of animation did he appear to be, that the lofty
+manner in which she greeted him apparently went unnoticed. He met her with a
+warm handclasp and anxious inquiries about how she felt after all the exciting
+events. Too filled with eagerness to know all the details of his adventures she
+had found it difficult to maintain her pose, and soon was seated cosily beside
+him, asking him question after question, all the while furtively studying him
+in his proper r&ocirc;le. As Frederic Hoff she had thought him wonderfully
+handsome and masterful. As Captain Sir Frederic Seymour, in his regimental
+finery, he was simply irresistible.
+</p>
+
+<p>
+“A joke?” she repeated. “Do explain, I’m dying to know all about it.”
+</p>
+
+<p>
+“It wasn’t half as difficult a job as one might imagine, you know. Our censor
+chaps at home have got to be quite expert at reading letters, invisible ink and
+all that sort of thing. Hoff for months had been sending cipher messages to the
+war office in Berlin. He kept urging them to act on his all-wonderful plan for
+blowing up New York. They decided finally to try it and notified old Otto they
+were sending over an officer to supervise the job.”
+</p>
+
+<p>
+“What became of him? The officer they sent over?”
+</p>
+
+<p>
+“Our people picked him off a Scandinavian boat and locked him up. They took his
+papers and turned them over to me. Clever, wasn’t it?”
+</p>
+
+<p>
+“And you took his name and his papers and came here in his place? Oh, that was
+a brave, brave thing to do.”
+</p>
+
+<p>
+“I wouldn’t say that,” said Seymour modestly. “I fancy I look a bit like the
+chap, and I speak the language perfectly.”
+</p>
+
+<p>
+“But it was such a terrible risk to take,” cried Jane with a shudder. “Suppose
+they’d found you out?”
+</p>
+
+<p>
+“No danger of that,” laughed Frederic. “Old Otto never had seen the chap who
+was coming. His real nephew, Frederic Hoff, whose American birth certificate
+was used, died years ago. Besides I had the German officer’s papers and knew
+just what his instructions were. The worst of it was when old Otto insisted
+every night on toasting the Kaiser, and when he kept trying to get me mixed up
+in his dirty schemes. I had to go through with the former once in a while, but
+on the latter, I—how do you Americans say it—just stalled along. My orders were
+to land him only on the big thing—his wonder-workers.”
+</p>
+
+<p>
+“But how did you explain to him that British uniform?”
+</p>
+
+<p>
+“Now that was really an idea. The old fellow was getting a bit cross and
+suspicious with me because he thought I wasn’t doing enough while they were
+getting his ‘wonder-workers’ ready. At one time he was so distrustful of me
+that he had me followed.”
+</p>
+
+<p>
+“Oh, yes, I know,” said Jane quickly. With a thrill she remembered the scene
+she had witnessed from her window the night K-19, her predecessor on Chief
+Fleck’s staff, had been murdered. In her relief at discovering that Frederic
+was no German spy, she had forgotten that for weeks and weeks she had all but
+believed him guilty of murder. Now, something told her, surely and confidently,
+that he could explain it all.
+</p>
+
+<p>
+“I saw you from my window one night before I met you,” she went on. “A man was
+following you, and you chased him around the corner.”
+</p>
+
+<p>
+“I remember that,” he said; “the poor chap was found dead the next morning. Old
+Otto killed him. The man had been following me, and I had imagined that he was
+one of old Otto’s spies and knocked him down. I couldn’t find anything on him
+to indicate who he was, so just as he was beginning to revive I left him and
+came on home. It seems old Otto had been watching him trail me. He followed
+along and shot the man. He gleefully told me about it the next day, the hound.
+I ought to have given him over to the police, but that would have upset our
+plans.”
+</p>
+
+<p>
+“I see,” said Jane; “what about Lieutenant Kramer? Was he working with old Mr.
+Hoff?”
+</p>
+
+<p>
+“That’s the funny part of it. Here in this country you’ve got so many kinds of
+secret agents they’re always trampling on each others’ toes. There’s your
+treasury agents, and your Department of Justice agents, and your army
+intelligence men and your naval intelligence men—nine different sets of
+investigators you’ve got, counting the volunteers, so some one told me, and
+each lot trying to make a record for itself and not taking the others into its
+confidence. Rather stupid I call it.”
+</p>
+
+<p>
+“I should say so,” agreed Jane.
+</p>
+
+<p>
+“Here was I watching old Hoff for our government, and Kramer watching me for
+your navy and Fleck watching both of us. It was a funny jumble.”
+</p>
+
+<p>
+“But about that uniform?” Jane persisted.
+</p>
+
+<p>
+“When the old man got to ragging me a bit, I felt I must do something to
+convince him I was all right. I suggested trying to get a British uniform and
+maybe learning thereby some secrets. It delighted him hugely. Of course I just
+went down to Colonel Brook-White and got my own uniform, and that was all there
+was to that.”
+</p>
+
+<p>
+“It puzzled Mr. Carter, though, how you got it in and out of the house. He used
+to open every bundle that came for Mr. Hoff.”
+</p>
+
+<p>
+Sir Frederic laughed delightedly.
+</p>
+
+<p>
+“I had a messenger who used to bring it back and forth in a big lady’s hat-box.
+It always was addressed to you, my dear, but the boy had instructions to
+deliver it to me.”
+</p>
+
+<p>
+“Humph,” snapped Jane with mock indignation. “And when did you first find out
+that I was helping Chief Fleck watch you?”
+</p>
+
+<p>
+“I suspected it from the start. Kramer told me how you’d become acquainted with
+him. Then when I heard you ’phoning Carter about the bookstore I knew for
+certain.”
+</p>
+
+<p>
+“Oh, that’s one thing now I wanted to ask about—those messages Hoff left in the
+bookstore. Who were they for?”
+</p>
+
+<p>
+“Instructions to a German advertising agency on how to word some advertisements
+that contained a code.”
+</p>
+
+<p>
+“Oh, those Dento advertisements?”
+</p>
+
+<p>
+“You knew about them?” cried Seymour in astonishment.
+</p>
+
+<p>
+“Of course,” said Jane proudly. “I was the one who deciphered them; but what
+did that girl do with those messages? Carter had a theory that she slipped them
+under a dachshund’s collar.”
+</p>
+
+<p>
+“That theory’s just like Carter,” laughed Frederic—“regular detective stuff. I
+never heard of any dachshund’s being used. The girl used to slip them into a
+letter box in her apartment-house hallway. Two minutes later a man would get
+them and carry them to their destination.”
+</p>
+
+<p>
+“The traitors in our navy—the men who signalled old Otto and Lena Kraus about
+the transports—who were they? They are the scoundrels I’d like to see arrested
+and shot.”
+</p>
+
+<p>
+“Never worry. They’ll all meet their deserts. I can’t tell even you who they
+are, but I’ve given your Chief Fleck a list of them. They will be quickly
+rounded up now. What else can I tell you?”
+</p>
+
+<p>
+“There’s this,” said Jane, the color rising to her cheeks as she drew forth
+from its hiding place in the bosom of her gown the packet he had entrusted to
+her the morning before, its seals still intact.
+</p>
+
+<p>
+“What?” he cried in delight. “You kept it safe? You did not open it even when
+you saw me arrested, when you must have been convinced that I was a spy? Girl,
+dear girl”—his voice became a caress, and the light of love flamed up in his
+eyes, “you did trust me then, in spite of everything.”
+</p>
+
+<p>
+“I had promised you, and I kept my promise,” faltered Jane, striving for words
+to explain, though she had been unable to explain her actions even to herself.
+“I think my heart trusted you all the time, even though my head and eyes made
+me believe you were what you pretended to be. Even when things looked blackest
+my heart persisted that you were true.”
+</p>
+
+<p>
+“God bless your heart for that,” cried Frederic, as he took the little packet
+from her hands and began breaking the seals. “Yesterday morning, when old
+Otto’s plans were ready, I foresaw the danger of the trip ahead of me. I
+realized I might never come back alive. If they discovered who I was a second
+too soon it would mean my death. I dared not, for my country’s sake, tell even
+you what I was doing. My honor was at stake. I dared not drop the slightest
+hint nor write a single line. The only thing I’d kept about me in the apartment
+that wasn’t filthy German stuff was what’s in here.”
+</p>
+
+<p>
+Slowly he was unwrapping something rolled in tissue paper, as Jane, eager-eyed,
+looked wonderingly on.
+</p>
+
+<p>
+“But,” he went on, “I couldn’t go away from you without leaving some token,
+some clue. If it happened that I never came back, I wanted you to know—”
+</p>
+
+<p>
+He stopped abruptly.
+</p>
+
+<p>
+“To know what?” questioned the girl breathlessly.
+</p>
+
+<p>
+“To know that I loved you, darling, better than all else save honor,” he said,
+taking her into his arms. “See the token I left behind for you. It’s an old,
+old family ring with the Seymour crest. You’ll wear it, girl of mine, won’t
+you, wear it always.”
+</p>
+
+<p>
+Unhesitatingly Jane Strong thrust forth the third finger on her left hand, and
+instinctively her lips turned upward toward his.
+</p>
+
+<p>
+And no matter what might have happened just then in the apartment next door,
+neither of them would have known anything about it.
+</p>
+
+<hr />
+
+<h2>THE END</h2>
+
+</div><!--end chapter-->
+
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@@ -0,0 +1,6890 @@
+Project Gutenberg's The Apartment Next Door, by William Andrew Johnston
+
+This eBook is for the use of anyone anywhere at no cost and with
+almost no restrictions whatsoever. You may copy it, give it away or
+re-use it under the terms of the Project Gutenberg License included
+with this eBook or online at www.gutenberg.org
+
+
+Title: The Apartment Next Door
+
+Author: William Andrew Johnston
+
+Release Date: February 23, 2004 [EBook #11240]
+[Date last updated: February 5, 2005]
+
+Language: English
+
+Character set encoding: ISO-8859-1
+
+*** START OF THIS PROJECT GUTENBERG EBOOK THE APARTMENT NEXT DOOR ***
+
+
+
+
+Produced by Juliet Sutherland, Charlie Kirschner and the Online
+Distributed Proofreading Team.
+
+
+
+
+
+The Apartment Next Door
+
+BY
+
+WILLIAM JOHNSTON
+
+AUTHOR OF
+THE HOUSE OF WHISPERS, LIMPY, ETC.
+
+ILUSTRATIONS BY
+ARTHUR WILLIAM BROWN
+
+
+_1919_
+
+
+
+
+TO THAT MARVELLOUS SCHEHERAZADE
+
+CAROLYN WELLS HOUGHTON
+
+THE AUTHOR, IN ENVIOUS ADMIRATION,
+DEDICATES THIS VOLUME
+
+
+
+
+CONTENTS
+
+
+CHAPTER
+
+I. THE FACE OF HATE
+
+II. THE ADDRESS ON THE CARD
+
+III. "MR. FLECK"
+
+IV. THE CLUE IN THE BOOK
+
+V. ON THE TRAIL
+
+VI. THE MISSING MESSAGE
+
+VII. THE WOMAN ON THE ROOF
+
+VIII. THE LISTENING EAR
+
+IX. THE PURSUIT
+
+X. CARTER'S DISCOVERY
+
+XI. JANE'S ADVENTURE
+
+XII. PUZZLES AND PLANS
+
+XIII. THE SEALED PACKET
+
+XIV. THE MOUNTAIN'S SECRET
+
+XV. THE HOUSE IN THE WOODS
+
+XVI. THE ATTACK ON THE HOUSE
+
+XVII. SOMETHING UNEXPECTED
+
+XVIII. WHAT THE PACKET CONTAINED
+
+
+
+
+LIST OF ILLUSTRATIONS
+
+ * * * * *
+
+She could not bring herself to tell him, the
+man she loved, the thing she knew he
+was.
+
+More than likely, she alone in all the world--knew
+who the murderer was.
+
+Had he been standing there listening? How
+much had he heard?
+
+"Thank God," he cried. "Jane, dear,
+tell me you are not hurt!"
+
+
+
+
+THE APARTMENT
+NEXT DOOR
+
+
+
+
+CHAPTER I
+
+
+THE FACE OF HATE
+
+It was three o'clock in the morning. Along a deserted pavement of
+Riverside Drive strode briskly a young man whose square-set shoulders
+and erect poise suggested a military training. His coat, thrown
+carelessly open to the cold night wind, displayed an expanse of white
+indicative of evening dress. As he walked his heels clicked sharply on
+the concrete with the forceful firm tread of the type which does things
+quickly and decisively. The intense stillness of the early morning hours
+carried the sound in little staccato beats that could be heard blocks
+away. A few yards behind him, moving furtively and noiselessly, almost
+as if he had been shod with rubber, crept another figure, that of a
+stocky, broad-shouldered man, who despite his bulk and weight moved
+silently and swiftly through the night, a soft brown hat drawn low over
+his eyes as if he desired to avoid recognition.
+
+All at once the man ahead paused suddenly and stood looking out over the
+river. Between the Drive and the distance-dimmed lights of the Jersey
+shore there rose like great silhouettes the grim figures of several huge
+steel-clad battleships, their fighting-tops lost in the shadows of the
+opposite hills. Beside them, obscure, with no lights visible, lay the
+great transports that in a few hours, or in a few days--who knew--they
+would be convoying with their precious cargo of fighting men across the
+war-perilled Atlantic.
+
+It was on the forward deck of one of these great battleships that the
+eyes of the man ahead were riveted. His shadower, evidently much
+concerned in his actions, crept slowly and stealthily forward,
+approaching nearer and still nearer without being observed.
+
+A dim light became visible on the warship's deck and then vanished.
+Still the man stood there watching, a puzzled, anxious look coming into
+his face. Quickly the light reappeared--two flashes, a pause, two
+flashes, a pause, and then a single flash. It was such a light as might
+have been made by a pocket torch, a feeble ray barely strong enough to
+carry to the adjacent shore, a light that if it had been flashed from
+some sheltered nook by the boat davits might not even have attracted the
+attention of the officer on the bridge nor of the ship's watchmen.
+Manifestly it was a signal intended for the eyes of some one on shore.
+
+A muttered imprecation escaped the lips of the watcher on the Drive. He
+stood there, straining his eyes toward the ship as if expecting a
+following signal, then he turned and gazed aloft at the windows of the
+apartment houses lining the driveway to see if some answering signal
+flashed back.
+
+And in the shadow of the buildings, hardly ten feet away but half
+sheltered by a doorway, stood his sinister pursuer, motionless
+but alert.
+
+For perhaps a quarter of an hour they held their positions. At last the
+man who was being followed shrugged his shoulders impatiently and set
+off again down the Drive, from time to time turning his head to watch
+the spot from which the signal had been flashed. Behind him, as
+doggedly as ever and now a little closer, crept the man with the hat
+over his eyes.
+
+Regardless of the lateness of the hour, at a third-floor window of one
+of the great apartment houses lining the Drive sat a young girl in her
+nightrobe, with her two great black braids flung forward over her
+shoulders, about which she had placed for warmth's sake a quilted
+negligee. Jane Strong was far too excited to sleep. An hour before she
+had come in from a wonderful party. The music still was playing mad
+tunes in her ears. The excitement, the coffee, the spirited tilts at
+arms with her many dancing partners had set her brain on fire. Sleep
+seemed impossible as yet.
+
+Looking out at the river--a favorite occupation of hers--the sight of
+the warships looming up through the darkness reminded her once more that
+nearly all of the men with whom she had been dancing had been in
+uniform, bringing into prominence in the jumble of ideas in her
+over-stimulated brain, almost as a new discovery, the fact that her
+country was really engaged in war, that the men, the very men whom she
+knew best, were most of them fighting, or soon going to fight in a
+foreign land. Suddenly she found herself vaguely wishing that there was
+something she might do, something for the war, something to help. Would
+it not be splendid, she thought, to go to France as a Red Cross nurse,
+to be over there in the middle of things, where something exciting was
+forever going on. Life--the only life she knew about, existence as the
+petted daughter of well-to-do parents in a big city--had, ever since the
+war had begun, seemed strangely flat and uninteresting. Parties, to be
+sure, were fun but hardly any one was giving parties this year. The
+Stantons had entertained only because their lieutenant son was going
+abroad soon, and they wished him to have a pleasant memory to carry with
+him. Most of the interesting men she knew already were gone, and now
+Jack Stanton was going. How she wished she could find some way of
+getting into the war herself.
+
+The sound of approaching footsteps caught her ear. Wondering who was
+abroad at that hour of the night she pushed up the window softly and
+looked out. In the distance she saw a man approaching, striding briskly
+toward her. As she stood idly watching him and wondering about him,
+suddenly she caught her breath. She had sighted the other figure behind,
+the man creeping stealthily after him. Nearer and nearer they came. In
+tense expectation she waited, sensing some unusual development. They had
+reached her block now. Almost directly under her window the man in
+advance paused to light a cigarette. His shadow paused, too, but some
+incautious movement on his part must have betrayed him.
+
+Match in hand, the man in advance stood stock-still, his whole figure
+taut, poised, alert, in an attitude of listening. All at once he wheeled
+about, discovering the man close behind him. He sprang at once for his
+pursuer. The latter took to his heels, dashing around the corner, the
+man whom he had been following now hot at his heels.
+
+All trembling with nervous excitement Jane leaned out the window to
+listen and watch. She could hear the running feet of both men just
+around the corner. What was happening? The running feet came to an
+abrupt stop. There was a half-smothered cry, a sharp thud, like a body
+striking the pavement, and then came silence. Puzzled, vaguely alarmed,
+a hundred questions came pouring into her brain and lingered there
+disturbingly. Why had one of these men been shadowing the other? Why had
+the pursuer suddenly become the pursued? Why had the running footsteps
+come to such an abrupt stop? What was the noise she had heard? What was
+happening around the corner? Her fears rapidly growing, she was on the
+point of arousing her family. But what excuse should she give? What
+could she tell them? After all she had merely seen two men run up the
+side street. More than likely they would only laugh at her, and she did
+not like being laughed at. Besides, Dad was always cross when suddenly
+awakened. Undecided what to do she stood at the window, peering into
+the night.
+
+Five minutes, ten minutes she stood there in tremulous perplexity. A
+sense of impending tragedy seemed to have laid hold of her. A black
+horror seized her and held her at the window. Something terrible,
+something tragic, she was sure must have happened. Mustering up her
+strength and trying to calm her fears she was about to put down the
+window when she heard footsteps once more approaching. Straining her
+ears to listen she discovered the sound was that of the steps of a
+man--one man--approaching from around the corner. As she watched he
+turned into the Drive and came on toward her. She shrank back a little,
+fearful of being seen even though her room was in darkness. It was the
+first man. She recognized him at once by his top-hat and his evening
+clothes. He was walking even more briskly than before, almost running.
+There was no sign anywhere of the shorter thick-set man who had been
+following him. Something in the appearance of the figure in the street
+below struck her all at once as vaguely familiar. She wondered if it
+could be any one she knew.
+
+Presently he came directly opposite the light on the other side of the
+Drive so that it shone for an instant full on his face. Jane looked and
+shuddered. Never in all her life had she seen any man's countenance so
+convulsed, not with pain, but with a soul-terrifying expression of hate,
+of virulent, murderous hate.
+
+Distorted though the man's face was with such bitter frightfulness, she
+recognized him, not as any one she knew, but merely as one of the
+tenants in the same apartment building.
+
+"It's one of the people next door," she said to herself and in
+verification of her identification, as he approached the building, the
+young man cast a swift glance over his shoulder, and then, as if
+satisfied that he was unobserved, dashed hurriedly in at the entrance.
+
+Jane, more than ever wrought up with fear and dread of she knew not
+what, sprang hastily into bed and drew the covers about her shoulders.
+As yet she did not lie down but shiveringly waited. Presently she heard
+the elevator stop. She heard the key opening the door of the next
+apartment. In a few minutes she heard the man moving about his bedroom,
+separated from her own room by a mere six inches of plaster and paper,
+or whatever it is that apartment-house walls are made of.
+
+What could have happened? She was certain that something terrible had
+occurred in which the young man next door had played a tragic, perhaps
+even a criminal part. She tried in vain to conjecture what circumstance
+could have been responsible for the look of hatred she had seen on his
+face. She wondered what had been the fate of the man who had been
+following him. Had they quarrelled and fought? What could have been the
+subject of their quarrel?
+
+She tried to summarize what she knew about the people next door, and was
+amazed to discover how little she had to draw upon. As in most New York
+apartment houses so in Jane's home all the tenants were utter strangers
+to each other, one family not even knowing the names of any of the
+others. Occasionally, to be sure, one rather resentfully rode up or down
+in the elevator with some of the other tenants but always without
+noticing or speaking to them. Jane's family had been living in the
+building for five years, and of the twenty other families they knew the
+names of only two, having learned them by accident rather than
+intention. About the people next door Jane now discovered that she
+really knew nothing at all. There was a man with a gray beard who never
+took off his hat in the elevator, and there was the handsome young chap
+whom she had just seen entering. But what their names were, or their
+business, or how long they had lived there, or whether they were father
+and son, what servants they kept, or whether either or both of them was
+married--these were questions she could have answered as readily as if
+they had been living in Dallas, Texas, or Seattle, Washington, as in the
+next apartment. Quickly she found that she really knew nothing at all
+about them except--she could not recall that any one had told her or how
+she had got the impression--she was almost certain they were some sort
+of foreigners.
+
+Just when it was that her troubled thoughts were succeeded by even more
+troubled dreams she was not aware, but it was noon the next day when she
+was awakened by the maid bringing in her breakfast tray.
+
+"Terrible, Miss Jane, wasn't it," said the servant, "about that suicide
+last night, almost under our noses, you might say."
+
+"Suicide!" cried the girl, at once wide-awake and interested "What
+suicide?"
+
+"A man was found dead in the side street right by our building with a
+revolver in his hand."
+
+"What sort of a looking man was he?"
+
+"I didn't see him," said the maid, almost regretfully. "He was taken
+away before I was up. Cook tells me it was the milkman found him and
+notified the police."
+
+"Who was he?"
+
+"Nobody round here knows a thing about him. He shot himself through the
+heart and us sleeping here an' not knowing anything at all about it."
+
+"But didn't any one know who he was?"
+
+"Never a soul. The superintendents from all the buildings round took a
+look at the body, but none of them knew him. It wasn't anybody that
+lived around here. There's a piece in the afternoon papers about it."
+
+"Get me a paper at once," directed the girl.
+
+Eagerly she read the paragraph the maid pointed out. It really told very
+little. The body of a plainly dressed man had been found on the
+sidewalk. There was a revolver in his hand with one cartridge
+discharged, and the bullet had penetrated his heart. He had been a short
+stalky man and had worn a brown soft hat. There was nothing about his
+clothing to identify him, even the marks where his suit had been
+purchased having been removed. He had not been identified. The police
+and the coroner were satisfied that it was a case of suicide.
+
+Suicide!
+
+Jane, reading and rereading the paragraph, recalled the unusual
+occurrence she had witnessed the night before. Vividly there stood out
+before her the strange panorama she had seen, the tall young man in
+evening clothes, and the short stalky man with the soft hat who had
+followed him. The two of them had run around the corner. Only one of
+them had come back. Unforgettably there was imprinted in her memory the
+satanic expression on the young man's face as he had hastened into the
+house. No wonder he had cast such an anxious glance behind him as
+he entered.
+
+Suicide!
+
+Jane was certain that it was no suicide. She remembered the curious thud
+she had heard from around the corner, like a body falling to the
+pavement. She recalled that it must have been at least ten minutes
+before the other man reappeared, time enough to have placed the revolver
+in the dead man's hand, time enough even to have removed all possible
+means of identification from the man's clothing.
+
+It was not suicide, Jane felt certain. It was murder! Slowly but
+oppressingly, overwhelmingly, it dawned on her not only that in all
+probability a murder had been committed, but also that she--more than
+likely, she alone in all the world--knew who the murderer was, who it
+must have been--the young man next door.
+
+
+
+CHAPTER II
+
+THE ADDRESS ON THE CARD
+
+Impatiently Jane looked at her wrist watch. It lacked an hour of the
+time when she was to meet her mother at the Ritz for tea. Her nerves
+still all ajangle from excitement and worry over the morning's tragedy,
+and her own accidental secret knowledge of certain aspects of the case
+had made it wholly impossible for her to do anything that day with even
+simulated interest.
+
+She had been debating with herself whether or not to confide to her
+mother the story of the tragic tableau of which she had been an
+accidental witness, when Mrs. Strong had dashed into her bedroom to give
+her a hurried peck on the cheek and to say that she was off to luncheon
+and the matine with Mrs. Starrett.
+
+"You're not looking well to-day, dear," her mother had said. "Stay in
+bed and rest and join us for tea if you like."
+
+Before she had opportunity to tell what she had seen, her mother was
+gone, but Jane had found it impossible to obey her well-meant
+injunction. She rose and dressed, her mind busy all the while with the
+problem of what her duty was. As she donned her clothing she paused from
+time to time to listen for sounds from the next apartment.
+
+What was her neighbor doing now? Had he read of the discovery of the
+man's body in the street? Perhaps he had fled already? Not a sound was
+to be heard there. He did not look in the least like what Jane imagined
+a murderer would, yet certainly the circumstances pointed all too
+plainly to his guilt. She had seen two men dash around the corner, one
+in pursuit of the other. One of them had come back alone. Not long
+afterward a body--the body of the other man--had been found with a
+bullet in his heart. It must have been a murder.
+
+What ought she to do about it? Was it her duty to tell her mother and
+Dad about what she had seen? Mother, she knew, would be horrified and
+would caution her to say nothing to any one, but Dad was different. He
+had strict ideas about right and justice. He would insist on hearing
+every word she had to tell. More than likely he would decide that it was
+her duty to give the information to the authorities. Her face blanched
+at the thought. She could not do that. She pictured to herself the
+notoriety that would necessarily ensue. She saw herself being hounded by
+reporters, she imagined her picture in the papers, she heard herself
+branded as "the witness in that murder case," she depicted herself being
+questioned by detectives and badgered by lawyers.
+
+No, she decided, it would be best for her never to tell a soul, not even
+her parents. In persistent silence lay her safest course. After all she
+had not witnessed the commission of the crime. She was not even sure
+that the man found dead had been one of the two she had watched from her
+window. If she saw the body she would not be able to identify it. She
+was not even certain in her own mind that the man next door had done the
+shooting, however suspicious his actions may have appeared to her.
+Besides, he did not look in the least like a murderer. He was too
+well-dressed.
+
+In an effort to put the whole thing out of her mind she tried to read,
+but was unable to keep her thoughts from wandering. She sat down at the
+piano, but music failed to interest or soothe her. She mussed over some
+unanswered notes in her desk but could not summon up enough
+concentration of mind to answer them. Restless and fidgety, unable to
+keep her thoughts from the unusual occurrences that had disturbed her
+ordinarily too peaceful life, she decided to take a walk until it was
+time to keep her appointment. Something--force of habit probably--led
+her to the shopping district. With still half an hour to kill, she went
+into a little specialty shop to examine some knitting bags displayed in
+the window.
+
+"Why don't you knit as all the other girls are doing?" was her father's
+constant suggestion every time she asserted her desire to be doing
+something in the war.
+
+"There's no thrill in knitting," she would answer. "Fix it, Dad, so that
+I can go to France as a Red Cross nurse or as an ambulance driver, won't
+you? I want some excitement."
+
+Always he had refused to consent to her going, insisting that France in
+wartime was no place for an untrained girl.
+
+"If I can't go myself, I certainly am not going to send any knitting,"
+she would spiritedly answer, but several times recently the sight of
+such charming looking knitting bags had tempted her into almost breaking
+her resolution.
+
+Inside the shop she found nothing that appealed to her, and contented
+herself with buying some toilet articles. As she made her purchases she
+noticed, almost subconsciously, a man standing near, talking with one of
+the shopgirls--a middle-aged man with a dark mustache.
+
+"The address, please," said the girl, who had been waiting on her.
+
+"Miss Strong," she answered, giving the number of the apartment house on
+Riverside Drive.
+
+She recalled afterward that as she mentioned the number the man standing
+there had turned and looked sharply at her, but she thought nothing of
+it. Her father's name was well known and he had many acquaintances in
+the city. More than likely, she supposed, this man was some friend of
+her father who had recognized the name.
+
+She lingered a few moments at some of the other counters, aimlessly
+inspecting their offerings, and at last, with ten minutes left to reach
+the Ritz, emerged from the store. She was amazed to see the man who had
+been inside now standing near the entrance, and something within warned
+her that he had been waiting to speak to her. As she attempted to pass
+him quickly, he stepped in front of her, blocking her path, but raising
+his hat deferentially.
+
+"I beg your pardon, Miss Strong," he said, "may I have a word with you?"
+
+Compelled to halt, she looked at him both appraisingly and resentfully.
+There was nothing offensive nor flirtatious in his manner, and he seemed
+far too respectably dressed to be a beggar. He was almost old enough to
+be her father, and besides there was about him an indefinable air of
+authority that commanded her attention. She decided that, unusual as his
+request appeared, she would hear what he had to say.
+
+"What is it?" she asked, trying to assume an air of hauteur but without
+being able wholly to mask her curiosity.
+
+"You are an American, aren't you?" he asked abruptly.
+
+"Of course."
+
+"A good American?"
+
+"I hope so." She decided now that he must be one of the members of some
+Red Cross fund "drive," or perhaps an overenthusiastic salesman for
+government bonds. "But I don't quite understand what it is that
+you wish."
+
+"I can't explain," said her questioner, "but if you really are a good
+American and you'd like to do your country a great service--an important
+service--go at once to the address on this card."
+
+She took the slip of white pasteboard handed her. On it was written in
+pencil "Room 708." The building was a skyscraper down-town.
+
+"What is it?" she asked half indignantly, "a new scheme to sell bonds?"
+
+"No, no, Miss Strong," he cried, "it is nothing like that. It is a great
+opportunity to do an important service for America."
+
+"How did you know my name?"
+
+"I heard you give it to the clerk just now."
+
+"And why," she inquired with what she intended to be withering sarcasm,
+"have I been selected so suddenly for this important work?"
+
+"I heard the address you gave, that's why," he answered. "That's what
+makes it so important that you should go to that number at once. Ask for
+Mr. Fleck."
+
+"I can't go," she temporized. "I am on my way now to meet my mother at
+the Ritz."
+
+"Go to-morrow, then," he insisted. "I'll see Mr. Fleck meanwhile and
+tell him about you."
+
+Puzzled at the man's unusual and wholly preposterous request, yet in
+spite of herself impressed by his evident sincerity, Jane turned the
+card nervously in her hand and discovered some small characters on the
+back; "K-15" they read.
+
+"What do those figures mean?" she asked.
+
+"I can't tell you that. Mr. Fleck will explain everything. Promise me
+you will go to see him."
+
+"Who are you?"
+
+"I can't tell you that, yet."
+
+"Who, then, is Mr. Fleck?"
+
+"He will explain that to you."
+
+"What has my address to do with it? I can't understand yet why you make
+this preposterous request of me."
+
+"I tell you I can't explain it to you, not yet," the man replied, "but
+it's because you live where you do you must go to see Mr. Fleck. It's
+about a matter of the highest importance to your government. It is more
+important than life and death."
+
+His last words startled her. They brought to her mind afresh the
+mysterious occurrence she had witnessed the night before and the equally
+mysterious death near her home. Had this man's odd request any
+connection, she wondered, with what had happened there? The lure of the
+unknown, the opportunity for adventure, called to her, though prudence
+bade her be cautious.
+
+"I'll ask my mother," she temporized.
+
+"Don't," cried the man. "You must keep your visit to Mr. Fleck a secret
+from everybody. You mustn't breathe a word about it even to your father
+and mother. Take my word for it, Miss Strong, that what I am asking you
+to do is right. I've two daughters of my own. The thing I'm urging you
+to do I'd be proud and honored to have either of them do if they could.
+There is no one else in the world but you that can do this particular
+thing. A word to a single living soul and you'll end your usefulness.
+You must not even tell any one you have talked with me. See Mr. Fleck.
+He'll explain everything to you. Promise me you'll see him."
+
+"I promise," Jane found herself saying, even against her better
+judgment, won over by the man's insistence.
+
+"Good. I knew you would," said her mysterious questioner, turning on his
+heel and vanishing speedily as if afraid to give her an opportunity of
+reconsidering.
+
+Puzzled beyond measure not only at the man's strange conduct but even
+more at her own compliance with his request, Jane made her way slowly
+and thoughtfully to the Ritz, where she found her mother and Mrs.
+Starrett had already arrived.
+
+As they sipped their tea the two elder women chatted complacently about
+the matine, about their acquaintances, about other women in the
+tea-room and the gowns they had on, about bridge hands--the usual small
+talk of afternoon tea.
+
+To Jane, oppressed with her two secrets, all at once their conversation
+seemed the dreariest piffle. Great things were happening everywhere in
+the world, nations at war, men fighting and dying in the trenches of
+horror for the sake of an ideal, kings were being overthrown, dynasties
+tottering, boundaries of nations vanishing. Women, she realized, too,
+more than ever in history, were taking an active and important part in
+world affairs. In the lands of battle they were nursing the wounded,
+driving ambulances, helping to rehabilitate wrecked villages. In the
+lands where peace still reigned they were voting, speech-making, holding
+jobs, running offices, many of them were uniting to aid in movements for
+civic improvement, for better children, for the improvement of the whole
+human race.
+
+And here they were--here _she_ was, idling uselessly at the Ritz as she
+had done yesterday, last week, last month--forever, it seemed to her.
+The vague protest that for some time had been growing within her against
+the senselessness and futility of her manner of existence crystallized
+itself now into a determination no longer to submit to it. Courageously
+she was resolving that she would take the first opportunity to escape
+from this boresome routine of pleasure-seeking. She was wondering if the
+request that had been so unexpectedly made of her would prove to be her
+way out from her prison of desuetude.
+
+The talk of the two women with her drifted aimlessly on. Seldom was she
+included in it, save when her mother, nodding to some one she knew,
+would turn to say:
+
+"Daughter, there is Mrs. Jones-Lloyd."
+
+What did she care about Mrs. Jones-Lloyd? What did she care about any of
+the people about them, aimless, pleasure-hunting drifters like
+themselves. Left to her own devices for mental activity her thoughts
+kept recurring to the surprising adventure she had had a few minutes
+before. Thoughtfully she pondered over the mysterious message that had
+been given to her. The man had said that it was a wonderful opportunity
+for her to do her country a great service. She wondered why he had been
+so secretive about it. She decided that she would investigate further
+and made up her mind to carry out his instructions. What harm could
+befall her in visiting an office building in the business district? At
+least it would be something to do, something new, something different,
+something surely exciting and, perhaps, something useful.
+
+It would be better, she decided, for the present at least, to keep her
+intentions entirely to herself. Any hint of her plans to her mother
+would surely result in permission being refused. The man certainly had
+seemed sincere, honest, and perfectly respectable, even if he was not of
+the sort one would ask to dinner. She made up her mind to go down-town
+to the address given the very first thing to-morrow morning. If anything
+should happen to her, she felt that she could always reach her father.
+His office was in the next block.
+
+The problem of making the mysterious journey without her mother's
+knowledge bothered her not at all. As in the case of most
+apartment-house families, she and her mother really saw very little of
+each other, especially since she had become a "young lady." Mrs. Strong
+went constantly to lectures, to luncheons, to bridge parties, to
+matines with her own particular friends. Jane's engagements were with
+another set entirely, school friends most of them, whose parents and
+hers hardly knew each other. Both she and her mother habitually
+breakfasted in bed, generally at different hours, and seldom lunched
+together. At dinner, when Mr. Strong was present, there were no
+intimacies between mother and daughter. The only times they really saw
+each other for protracted periods were when they happened to go
+shopping, or go to the dressmaker's together, and then the subject
+always uppermost in the minds of both of them was the all-important and
+absorbing topic of clothes. Occasionally, Jane poured at one of her
+mother's more formal functions, but for the most part the time of each
+was taken up in a mad, senseless hunt for amusement.
+
+Suddenly every thought was driven from Jane's head. Her face went white,
+and with difficulty she managed to suppress an alarmed cry.
+
+"What is it, daughter?" asked her mother, noting her perturbation. "Are
+you feeling ill?"
+
+"A touch of neuralgia," she managed to answer.
+
+"Too many late hours," warned Mrs. Starrett reprovingly.
+
+"I'm afraid so," said Mrs. Strong. "As soon as I've paid my check we'll
+go."
+
+"I'm perfectly all right now," said Jane, controlling herself with
+effort, though her face was still white.
+
+The danger that she had feared had passed for the present at least.
+Glancing toward the entrance a moment before she had been terrified to
+see entering the black-mustached man who had accosted her a few moments
+before. Her one thought now had been that he had followed her here, and
+in a panic she was wondering how she should make explanations if he came
+up to their table and spoke. To her great relief he gave no intimation
+of having seen her, but settled himself into a chair near the door where
+he was half hidden from her by a great palm. Furtively she watched him,
+trying to divine his intention in having followed her there. Respectable
+enough though he was in appearance and garb, he did not seem in the
+least like the sort of man likely to be found at tea-time in an
+exclusive hotel. As she studied him she soon saw that his attention
+seemed to be riveted on some one sitting at the other side of the room.
+Wonderingly she let her eyes follow his, and once more it was with
+difficulty that she suppressed an excited gasp.
+
+There, across the room, calmly sipping some coffee, was the handsome
+young man from the next apartment--the man whom she had felt sure, or at
+least almost sure, was a murderer, about whom she had been wondering all
+day long, picturing him as a hunted criminal fleeing from the law.
+Chatting interestedly with him was another man, a young man in the
+uniform of a lieutenant in the navy.
+
+What did it all mean? Why was the black-mustached man watching them so
+intently? Her eyes turned back to him. He was still sitting there,
+leaning forward a little, his brows in a pucker of concentration, his
+eyes still fixed on the pair opposite. It looked almost as if he was
+trying to read their lips and tell what they were talking about.
+
+Jane thrilled with excitement. The black-mustached man, she decided,
+must be a detective. She recalled that he had said to her it was because
+she lived at the address she did that she was available for the mission
+for which he wanted her. Did he, she wondered, know about the mysterious
+death in the street outside their apartment house? Was that the reason
+he was spying on her neighbor? But what could be his motive in seeking
+to involve her in the matter?
+
+Unable to find satisfactory answers to her questions she gave herself up
+interestedly to studying the faces of the two young men across the room.
+Neither of them, she decided, could be much more than thirty. The face
+that only a few hours before she had seen utterly convulsed with bitter
+hate, now placid and smiling, was really an attractive one, not in the
+least like a murderer's. Frank, alert blue eyes looked out from under an
+intellectual forehead. A small military mustache lent emphasis to a
+clean-shaven, forceful jaw. His flaxen hair was neatly trimmed. His
+linen and clothing were immaculate, and the hand that curved around his
+cup had long, tapering, well-manicured fingers. The cut of his clothing,
+his manners, everything about him seemed American, yet there was an
+indefinable something in his appearance that suggested foreign birth or
+parentage, probably either Swedish or German. The man with him was
+smaller and slighter. Despite the air of importance his uniform gave
+him, it was palpable that he was the less forceful of the two, his
+handsome face, it seemed to Jane, betraying weakness of character and a
+fondness for the good things of life.
+
+"Come, daughter," said Mrs. Strong, rising, "we must be going."
+
+So intent was Jane on her study of the two men that her mother had to
+speak twice to her.
+
+"Yes, mother," she answered obediently, rising hastily as the hint of
+annoyance in her mother's repeated remark brought her to a realization
+of having been addressed.
+
+Letting her mother and Mrs. Starrett precede her in the doorway she
+paused to look back at the scene that had interested her so strongly.
+What _could_ it mean? What was going on? How was she involved in it?
+
+Her glance moved quickly from the watcher to the watched. The blond
+young man caught her eye. Amazedly, it seemed to her, he stopped right
+in the middle of what he was saying and sat there, his gaze fixed full
+on her. She let her eyes fall, abashed, and turned to hasten after her
+mother, but not so quickly did she turn but that she observed he had
+hastily seized his cup and appeared to be drinking to her, not so much
+impudently as admiringly.
+
+
+
+CHAPTER III
+
+"MR. FLECK"
+
+Twice after the elevator had deposited her on the floor Jane had
+approached the door of Room 708, and twice she had walked timorously
+past it to the end of the hall, trying to muster up courage to enter. A
+visit to a man's office in the business district was a novelty for her.
+On the few previous excursions of the sort she had made she always had
+been accompanied by one of her parents. She found herself wishing now
+that she had taken her father into her confidence and had asked him to
+go with her. Making shopping her excuse she had come down-town with Mr.
+Strong but had gotten off at Astor Place, and waited over for
+another train.
+
+In her hand she held the card given to her by the black-mustached man
+the afternoon before. As she studied it now her curiosity came to the
+rescue of her fast-oozing courage. She must find out what it all meant,
+whatever the risk or peril that might confront her. Boldly she returned
+to Room 708 and opened the door. An office boy seated at a desk looked
+up inquiringly.
+
+"Is Mr. Fleck in?" she inquired timidly.
+
+"Who wishes to see him?"
+
+"Just say there's a lady wishes to speak to him," she faltered,
+hesitating to give her name.
+
+"Are you Miss Strong?" asked the boy abruptly, "because if you are, he's
+expecting you."
+
+She nodded, and the boy, jumping up, escorted her into an inner room. As
+she entered nervously an alert-looking man, with graying hair and
+mustache, rose courteously to greet her. In the quick glance she gave at
+her surroundings she was conscious only of the great mahogany desk at
+which he sat and behind it some filing cabinets and a huge safe, the
+outer doors of which stood open.
+
+"Sit down, won't you, Miss Strong," he said, placing a chair for her.
+
+His manner and his cultured tone, everything about him, reassured her at
+once. They conveyed to her that he was what she would have termed "a
+gentleman," and with a little sigh of relief she seated herself.
+
+"I'm afraid," said Mr. Fleck, smiling, "that Carter's method of
+approaching you must have alarmed you."
+
+"Carter--Oh, the black-mustached man."
+
+"Yes, that describes him. You see, he did not wish to act definitely
+without consulting his chief, yet the unexpected opportunity seemed far
+too vital not to be utilized. He did not explain, did he, what it was we
+wanted of you?"
+
+"Indeed he didn't," said Jane, now wholly herself. "He was most
+mysterious about it."
+
+Mr. Fleck smiled amusedly.
+
+"Carter has been an agent so long that being mysterious is second nature
+to him."
+
+"An agent--I don't understand."
+
+"A Department agent," explained Mr. Fleck, adding, "engaged in secret
+service work for the government."
+
+"Oh!"
+
+Jane's exclamation was not so much of surprise as of delighted
+realization, and the satisfaction expressed in her face was by no means
+lost on Mr. Fleck.
+
+"Would you object," he asked, moving his chair a little closer to hers,
+"if, before I explain why you are here, I ask you a few questions--very
+personal questions?"
+
+"Certainly not," said Jane.
+
+"You are American-born, of course?"
+
+"Oh, yes."
+
+"And your parents?"
+
+"American for ten or twelve generations."
+
+"How long have you lived in that apartment house on Riverside Drive?"
+
+"For about five years."
+
+"Do you know any of the other tenants in the house?"
+
+"No--that is, none personally."
+
+"Is your time fully occupied?"
+
+"No, indeed it isn't, I've nothing to do at all, nothing except to try
+to amuse myself."
+
+"Good," said Mr. Fleck. "Now would you be willing to help in some secret
+work for the United States Government, some work of the very highest
+importance?"
+
+"Would I?" cried Jane, her eyes shining. "Gladly! Just try me."
+
+"Don't answer too quickly," warned Mr. Fleck. "Remember, it will be real
+work, serious work, not always pleasant, sometimes possibly a little
+perilous. Remember, too, it must be done with absolute secrecy. You must
+not let even your parents know that you are working with us. You must
+pledge yourself to breathe no word of what you are doing or are asked to
+do to a living soul. Everything that we may tell you is to be buried
+forever from everybody. No one is to be trusted. The minute one other
+person knows your secret it will no longer be a secret. Can we depend
+upon you?"
+
+"You may absolutely depend on me," said Jane slowly and soberly. "I give
+you my word. I have been eager for ever so long to do something to help,
+to really help. My father is doing all he can to aid the government.
+He's on the Shipping Board."
+
+Mr. Fleck nodded. Evidently he was aware of it already.
+
+"My brother, my only brother," Jane continued, with a little catch in
+her throat, "is Over There--somewhere Over There--fighting for his
+government. If there is anything I can do to help the country he is
+fighting for, the country he may die for, I pledge you I will do it
+gladly with my heart, my soul, my body--everything."
+
+"Thank you," said Mr. Fleck softly, taking her hand. "I felt sure you
+were that sort of a girl. Now listen." He moved his chair still closer
+to hers, and his voice became almost a whisper. "In the apartment next
+to you there live two men,--Otto Hoff and his nephew, Fred. They have an
+old German servant, but we can leave her out of it for the present. The
+old man is a lace importer. Apparently they are both above
+suspicion, yet--"
+
+He stopped abruptly.
+
+"You think they are spies--spies for Germany," questioned Jane
+excitedly. "They're Germans, of course?"
+
+"Otto Hoff is German-born, but he has been here for twenty years.
+Several years ago he took out papers and became an American citizen."
+
+"And the young man?"
+
+Jane's tone was vibrant with interest. It must be the man she had seen
+from her window whom they suspected most.
+
+"He professes to be American-born."
+
+"Oh," said the girl, rather disappointedly.
+
+"But," continued Mr. Fleck, "there's something queer about it all. He
+arrived in this country only three days before we went into the war. He
+had a certificate, properly endorsed, giving his birthplace as
+Cincinnati. He arrived on a Scandinavian ship. He speaks German as well
+and as fluently as he speaks English, both without accent."
+
+"Perhaps he was educated abroad," suggested Jane, rather amazed at
+finding herself seeking to defend him.
+
+"He must have been," said Fleck, "yet I find it hard to believe that
+Germany at this time is letting any young German-American come home if
+he's soldier material--and young Hoff's appearance certainly suggests
+military training."
+
+"It surely does."
+
+"Unless," continued Fleck, "there was some special object in sending him
+here."
+
+"You think," said Jane slowly, "they sent him here--to this country--as
+a spy."
+
+"In our business we dare not think. We cannot merely conjecture. We must
+prove," said Mr. Fleck. "Maybe the Hoffs are O.K. I do not know. Nobody
+knows yet. Let me tell you some of the circumstances. This much we do
+know. Von Bernstorff is gone. Von Papen is gone. Scores of active German
+sympathizers and propagandists have been rounded up and interned or
+imprisoned, yet, in spite of all we have done, their work goes on. A
+vast secret organization, well supplied with funds, is constantly at
+work in this country, trying to cripple our armies, trying to destroy
+our munition plants, trying to corrupt our citizens, trying to disrupt
+our Congress. Every move the United States makes is watched. As you
+probably know, every day now large numbers of American troops are
+embarking in transports in the Hudson."
+
+"Yes," said Jane, "you can see them from our windows."
+
+"Now then," said Mr. Fleck, lowering his voice impressively, "here is
+the fact. Some one somewhere on Riverside Drive is keeping close and
+constant tab on the warships and transports there in the river. We have
+managed recently to intercept and decipher some code messages. These
+messages told not only when the transports sailed but how many troops
+were on each and how strong their convoy was. Where these messages
+originate we have not yet learned. We are practically certain that some
+one in our own navy, some black-hearted traitor wearing an officer's
+uniform--perhaps several of them--is in communication with some one on
+shore, betraying our government's most vital secrets."
+
+"I can't believe it," cried Jane, "our own American officers traitors!"
+
+"Undoubtedly some of them are," said Mr. Fleck regretfully. "The German
+efficiency, for years looking forward to this war, carefully built up a
+far-reaching spy system. Years ago, long before the war was thought
+of--or at least before we in this country thought of it--many secret
+agents of Wilhelmstrasse were deliberately planted here. Many of them
+have been residents here for years, masking their real occupation by
+engaging in business, utilizing their time as they waited for the war to
+come by gathering for Germany all of our trade and commercial secrets.
+Some of these spies have even become naturalized, and they and their
+sons pass for good American citizens. In some cases they have even
+Americanized their names. Insidiously and persistently they have worked
+their way into places, sometimes into high places in our chemical
+plants, our steel factories, yes, even into high places in our army and
+navy and into governmental positions where they can gather information
+first-hand. In no other country has it been so easy for them, because of
+this one fact: so large a proportion of Uncle Sam's population is of
+German birth or parentage. Why here in New York City alone there are
+more than three-quarters of a million persons, either German-born
+themselves or born of German parents. Many of them, the vast majority of
+them, probably, are loyal to America, but think how the plenitude of
+German names makes it easy for spies to get into our army and navy.
+Besides that, they employ evil men of other nationalities as spies, the
+criminal riffraff,--Danes, Swedes, Spaniards, Italians, Swiss and even
+South Americans,--all of whom are free to go and come as they choose in
+this country."
+
+"I never realized before," said Jane, "how many Germans there were all
+about us."
+
+"In an effort to locate this particular band of naval spies," continued
+Mr. Fleck, "we have combed the apartment houses and residences along
+the Drive. Three places in particular are under suspicion. The apartment
+of the Hoffs is one of these places. They moved in there thirty days
+after this country went to war. Ordinarily, where the occupants of an
+apartment are under suspicion, we take the superintendent of the
+building partly into our confidence and plant operatives in the house,
+or else we hire an apartment in the same building. In this case neither
+course is practicable. The superintendent of your building is a
+German-American and we dare not trust him, and there is no vacant
+apartment that we can rent. We have been watching the Hoffs from the
+outside as best we could. Carter, who has had charge of the shadowing,
+accidentally happened to overhear you give your address. He had procured
+a list of the tenants and remembered the location of your apartment. It
+struck him at once that you would be a valuable ally if you would
+consent to work with us."
+
+"What is it that you wish me to do?" asked Jane wonderingly. "You'll
+have to tell me how to go about it."
+
+"All a good detective needs," said Mr. Fleck, "is, let us say, three
+things--observation, addition and common sense. You must observe
+everything closely, be able to put two and two together and use your
+common sense. Do you know the Hoffs by sight?"
+
+"Only by sight."
+
+"They live in the next apartment on your floor, do they not?"
+
+"Yes. Young Mr. Hoff's bedroom is the room next to mine."
+
+"Good," cried Mr. Fleck. "Can you hear anything from the next apartment,
+any conversations?"
+
+"No, only muffled sounds."
+
+"The windows overlook the river and the transports, do they not?"
+
+"Yes, the windows of Mr. Hoff's bedroom and the room next. Their
+apartment is a duplicate of ours."
+
+Mr. Fleck sprang up and crossed to the big safe. Opening an inner drawer
+he took out a small metal disk and handed it to her. Jane looked at it
+curiously. It bore no wording save the inscription "K-19."
+
+"That," said Mr. Fleck, "is the only thing I can give you in the way of
+credentials. Keep it somewhere safely concealed about your clothing and
+never exhibit it except in case of extreme necessity. If ever you are in
+peril any police officer will recognize it at once and will promptly
+give you all the assistance possible."
+
+"But," protested the girl, "I don't know yet what I am to do."
+
+"For the present I am trusting to your resourcefulness to make
+opportunities to help us. We are watching the house closely from the
+outside. Carter will identify you to the other operatives. Once a day I
+will expect you to call me up, not from your home but from a public
+'phone. Here is my number. Say 'this is Miss Jones speaking,' and I will
+know who it is. I can communicate with you by note without arousing
+suspicion?"
+
+"Oh, yes, certainly."
+
+"If at any time I have to call you on the 'phone, or if any of the other
+operatives want to communicate with you the password will be 'I am
+speaking for Miss Jones.'"
+
+"Isn't that exciting--a secret password," cried Jane enthusiastically.
+
+"If you can manage it without compromising yourself too seriously, I
+wish you would make the young man's acquaintance."
+
+"That will be simple," said Jane, remembering the admiring way in which
+he had raised his cup in her direction as she left the hotel.
+
+"If possible find out who their visitors are in the apartment and keep
+your eyes open for any sort of signalling to the transports. If ever
+there is an opportunity to get hold of notes or mail delivered to either
+of them, don't hesitate to steam it open and copy it."
+
+"Must I?" said Jane. "That hardly seems right or fair."
+
+"Of course it's right," cried Mr. Fleck warmly. "Think of the lives of
+our soldiers that are at stake. The devilish ingenuity of these German
+spies must be thwarted at all costs. They seem to be able to discover
+every detail of our plans. Only two days ago one of our transports was
+thoroughly inspected from stem to stern. Two hours later twenty-six
+hundred soldiers were put aboard her on their way to France. Just by
+accident, as they were about to sail, a time-bomb was discovered in the
+coal bunkers, a bomb that would have sent them all to kingdom come."
+
+"How terrible!"
+
+"Somebody aboard is a traitor. Somebody knew when that inspection was
+made. Somebody put that bomb in place afterward. That shows you the kind
+of enemies we are fighting."
+
+Jane shuddered. She was thinking of the sailing of another transport,
+the one that had carried her brother to France.
+
+"Anything seems right after that," she said simply.
+
+"Yes," said Mr. Fleck, "there is only one effective way to fight those
+spying devils. We must stop at nothing. They stop at nothing--not even
+murder--to gain their ends."
+
+"I know that," said Jane hastily. "I saw something myself you ought to
+know about."
+
+As briefly as she could she described the scene she had witnessed in the
+early morning hours from her bedroom window, the man following the
+younger Hoff, Hoff's discovery and pursuit of him around the corner and
+of his return alone.
+
+"And in the morning," she concluded, "they found a man's body in the
+side street. He had a bullet through his heart. There was a revolver in
+his hand. The newspapers said that the police and the coroner were
+satisfied that it was a suicide. I caught a glimpse of Mr. Hoff's face
+when he came back from around that corner. It was all convulsed with
+hate, the most terrible expression I ever saw. I'm almost certain he
+murdered that man. I'm sure it wasn't a suicide."
+
+"I'm sure, too, that it was no suicide," said Mr. Fleck gravely. "The
+man who was found there was one of my men, K-19, the man whose badge I
+have just given you. He had been detailed to shadow the Hoffs."
+
+
+
+CHAPTER IV
+
+THE CLUE IN THE BOOK
+
+Subway passengers sitting opposite Jane Strong as she rode up-town from
+Mr. Fleck's office, if they observed her at all--and most of them
+did--saw only a slim, good-looking young girl, dressed in a chic
+tailormade suit, crowned with a dashing Paris hat tilted at the proper
+angle to display best the sheen of her black, black hair, which after
+the prevailing fashion was pulled forward becomingly over her ears.
+Outwardly Jane was unchanged, but within her nerves were all atingle at
+the thought of the tremendous and fascinating responsibility so
+unexpectedly thrust upon her. Her mind, too, was aflame with patriotic
+ardor, but coupled with these new sensations was a persisting sense of
+dread, an intangible, unforgettable feeling of horror that kept cropping
+up every time her fingers touched the little metal disk in her purse.
+
+The man who had carried it yesterday, the other "K-19" who had
+undertaken to shadow those people next door, now lay dead with a bullet
+through his heart. Was there, she wondered, a similar peril confronting
+her? Would her life be in danger, too? Was that the reason Mr. Fleck had
+told her of her predecessor's fate--to warn her how desperate were the
+men against whom she was to match her wits? Yet no sense of fear that
+projected itself into her busy brain as she cogitated over the task
+before her held her back. If anything she was rather thrilled at the
+prospect of meeting actual danger. What bothered her most was how she
+could best go about aiding Mr. Fleck and his men in their work.
+
+Her opportunity came far more quickly than she had anticipated. She had
+gotten off the train at the 96th Street station, purposing to walk the
+twenty odd blocks to her home as she pondered over the work that lay
+ahead of her. Busy with a horde of struggling new thoughts she proceeded
+along Broadway, for once in her life unheeding the rich gowns and
+feminine dainties so alluringly displayed in the shop windows. Suddenly
+she pulled herself together with a start. Directly ahead of her,
+plodding along in the same direction, was a figure that from behind
+seemed strangely familiar. She quickened her step until she caught up
+sufficiently with the man ahead to get a good glimpse of his side face.
+Nervously she caught her breath. Without any doubt it was the gray Van
+Dyke beard of old Otto Hoff.
+
+Where was he going? What was he doing? She paused and looked behind her,
+scanning the pavement on both sides of the street. She was half-hoping
+that she would discover Carter or some of his men shadowing their
+quarry, but her hope was vain. There was no one in the block at the
+moment but herself and Mr. Hoff. If Fleck's men had been watching his
+movements, the old man certainly seemed to have eluded them.
+
+What should she do? Vividly there flashed into her mind her chief's
+parting words.
+
+"Watch everything," he had charged her. "Remember everything, report
+everything. No detail is too unimportant. If you see one of the Hoffs
+leave the house, don't merely report to me that the old man or the young
+man left the house about three o'clock. That won't do at all. I want to
+know the exact time. Was it six minutes after three or eleven minutes
+after three? I must know what direction he went, if he was alone, how
+long he was absent, where he went, what he did, to whom he talked. Here
+in my office I take your reports, Carter's reports, a dozen other
+reports, and study them together. Things that in themselves seem
+trifling, unimportant, of no value, coupled with other seemingly
+unimportant trifles sometimes develop most important evidence."
+
+To prove his point he had told her of the seemingly innocent wireless
+message that an operator, listening in, had picked up, at a time when
+Germans were still permitted to use the wireless station on Long Island
+for commercial messages to the Fatherland. On the face of it, it was the
+mere announcement of the death of a relative with a few details. But a
+little later the same operator caught the same message coming from
+another part of the country, with the details slightly different, and
+still later another message of the same purport. Evidently, by comparing
+the messages, the United States authorities had been able to work out
+a code.
+
+Remembering this, Jane decided that it was her particular duty just now
+to follow the old German and note everything he did. For several blocks
+she trailed along behind him, without arousing any suspicion on his part
+that he was being followed. He stopped once to light a cigarette, the
+girl behind him diverting suspicion by hastily turning to a shop window.
+Again he stopped, this time before the display of viands in the window
+of a delicatessen store. Thoughtfully Jane noted the number, observing,
+too, that the name of the proprietor above the door was obviously
+Teutonic. She was half-expecting to see her quarry turn in here, but he
+walked on to the middle of the next block, where he entered a
+stationery store.
+
+Hesitating but a second, to decide on a course of action, she followed
+him boldly into the store. She felt that she must ascertain just what he
+was doing in there. As she entered she saw that in the back part of the
+store was a lending library. Mr. Hoff had gone back to it and was
+inspecting the books displayed there. Unhesitatingly she, too,
+approached the book counter.
+
+"Have you 'Limehouse Nights'?" she asked the attendant, naming the
+first book that came into her head. She had a copy of the book at home,
+but that seemed to be the only title she could think of.
+
+"We have several copies," the girl in charge answered, "but I think they
+are all out. I'll look."
+
+As the clerk examined the shelves, Jane kept up a desultory talk with
+her, questioning her about various books on the shelves, all the while
+watching the old German out of the corner of her eye. His back was
+toward her, and he seemed to be examining various books on the shelves,
+turning over the pages as if unable to decide what he wanted. Curious as
+to what his taste in reading was, Jane endeavored to locate each book
+that he removed from its place, her idea being that she would later try
+to discover their titles. To her amazement she found that it was
+invariably the third book in each shelf that he removed and
+examined--the third from the end. It did not appear to her that he was
+examining the contents of the pages so much as searching them as if he
+expected to find something there.
+
+All at once, as she furtively watched from behind him, she heard him
+give a little pleased grunt and she saw him picking out from between the
+leaves of the book a fragment of paper, which he held concealed in his
+hand. Watching closely, Jane saw him thrust this same hand into his
+trousers pocket, and when he brought it out she was certain that the
+hand was empty. What did this curious performance mean? What was the
+little slip of paper he had found in the book? Why had he concealed it
+in his pocket?
+
+Still keeping her attention riveted on him, she picked up a book to mask
+her occupation and pretended to be turning its pages. She was glad she
+had done so, for a minute later old Hoff wheeled suddenly and looked
+sharply about him. Apparently having his suspicions disarmed by seeing
+only herself and the clerk there, he turned again to the bookshelves.
+Jane this time saw him thrust his fingers into his waistcoat pocket and
+withdraw therefrom,--she was almost certain of it,--a little slip of
+paper. She saw him remove from the second row of books the fifth from
+the end, open it quickly and close it again and then restore it to its
+place. As he did so he turned to leave the store.
+
+"Didn't you find anything to read to-day, Mr. Hoff?" the clerk asked.
+
+"Nodding," he answered. "You keep novels, trash, nodding worth while."
+
+Her nerves aquiver, Jane waited until he was out of the store and then
+stepped briskly to the place where he had stood. Hastily she pulled
+forth the fifth book from the end in the second row. Turning its pages
+she came upon what she had anticipated,--a strip of yellow manila
+paper,--the paper she was sure she had seen him take from his pocket.
+Hastily she examined it, expecting to find some message written there.
+To her chagrin it was just a meaningless jumble of figures in
+three columns.
+
+ 534 5 2
+ 331 54 6
+ 644 76 3
+ 49 12 9
+ 540 30 12
+ 390 3 2
+ 519 3 6
+ 327 20 2
+
+ 97
+
+Her first thought was to thrust the little scrap of paper in her purse
+and start again in pursuit of old Hoff, but a sudden light began to dawn
+on her. This was a cipher message, of course. The old man had left it
+here for some one to come and get. If she followed Hoff, how was she to
+discover who the message was for? Puzzled as to what she should do, she
+borrowed a pencil from the clerk on the pretense of writing a postal and
+hastily copied the figures, after which she restored the slip to the
+book in which she had found it.
+
+Glancing about undecidedly, wondering if it would do to take the clerk
+into her confidence, wishing she had some means of reaching Mr. Fleck
+and asking his advice, she spied in a drug-store just across the street
+a telephone booth. She could telephone from there and at the same time
+keep her eye on the store. Quickly she did so, twisting her head around
+all the time she was 'phoning to make sure that no one entered opposite.
+
+"Is this Mr. Fleck?" she asked. "This is Miss Jones."
+
+"So soon?" came back his voice. "What has happened? What is the matter?
+Have you changed your mind?"
+
+"Not at all," she answered indignantly. "I've discovered something
+already--a cipher message."
+
+"What's that?"
+
+Even over the wire she could sense the eagerness in Mr. Fleck's tone,
+and a sense of achievement brought a radiant glow to her cheek.
+
+"I ran into that man--you know whom--"
+
+"The young one?" he interrupted.
+
+"No, the uncle."
+
+"Yes, yes, go on," cried Mr. Fleck impatiently.
+
+"I followed him along Broadway after I got off at 96th Street and into a
+library and stationery store. I watched him fuss over the books there,
+and I think he got a slip of paper with a message out of one of them."
+
+"Good," cried Mr. Fleck, "that is something new. Go on."
+
+"And then he slipped a paper into a book--"
+
+"Did you notice what book?"
+
+"I don't know the title. It was the fifth book from the end on the
+second shelf, and I got the paper and copied it."
+
+"Splendid. What did the message say?"
+
+"It's just a lot of figures. I put it back after copying it, and I am in
+a drug-store across the street where I can watch to see if any one comes
+to get the message. What shall I do now?"
+
+"Can you remain there fifteen minutes without arousing suspicion?"
+
+"Certainly. I'll say I am waiting for some one."
+
+"Good. I'll get in touch with Carter at once. He'll tell you what to do
+when he arrives."
+
+Impatiently Jane sat there, keeping vigilant watch on the entrance
+across the street, determined to be able to describe minutely each
+person that entered. From time to time she surreptitiously studied the
+postcard on which she had jotted down the mysterious numbers. How
+utterly meaningless they looked. Surely it would be impossible for any
+one, even Mr. Fleck, to decipher any message that these figures might
+convey. It would be impossible unless one had the key. Figures could be
+made to mean anything at all. She doubted if her discovery could be of
+much importance after all, yet certainly Mr. Fleck had seemed quite
+excited about it.
+
+She spied Carter passing in a taxi. Two other men were with him. Her
+first impulse was to run out in the street and signal to him, but she
+waited, wondering what she should do. She was glad she had not acted
+impulsively, for a moment later Carter entered alone, evidently having
+left the car somewhere around the corner. She expected that he would
+address her at once, but that was not Carter's way. He went to the soda
+counter and ordered something to drink, his eyes all the while studying
+his surroundings. Presently he pretended to discover her sitting there.
+To all appearances it might have been an entirely casual meeting of
+acquaintances.
+
+"Good-morning, Miss Jones," he said quite cordially, extending his hand.
+"I'm lucky to have met you, for my daughter gave me a message for you."
+
+He put just a little stress on the words "my daughter" and Jane
+understood that he was referring to "Mr. Fleck."
+
+"Indeed," she replied, "what is it?"
+
+"She wants you to go down-town at once and meet her at Room 708--you
+know the building."
+
+"Aren't you coming, too?"
+
+"Not right away. I have some errands to do in the neighborhood. I've got
+to buy a book for a birthday present. There's a library around here
+somewhere, isn't there?"
+
+"Just across the street," said Jane, entering into the spirit of the
+masked conversation with interest. "I was looking at a fine book over
+there a few minutes ago. You'll find it on the second shelf--the fifth
+book from the end, on the north side of the store."
+
+"I'll remember that," said Carter, repeating, "the fifth book on the
+second shelf."
+
+"That's right," said Jane, as they left the drug-store together.
+
+"Which way did the old man go?" asked Carter.
+
+"Down Broadway--toward home," she replied. "I wanted to follow him, but
+it seemed more important to stay here and watch to see if any one came
+for the message he left there in the book."
+
+"You did just right, and the Chief is tickled to death. He wants to see
+you right away. You have a copy of the message, haven't you?"
+
+"Yes, do you wish to see it?"
+
+"No, but he does. Has anybody entered the store since you were there?"
+
+"Nobody, that is no one but a couple of girls."
+
+"What did they look like? Describe them."
+
+"Why," Jane faltered, "I did not really notice. I was not looking for
+girls. I was watching to see that no other men entered the store."
+
+Carter shook his head.
+
+"You ought to have spotted them, too. You never can tell who the Germans
+will employ. They have women spies, too,--clever ones."
+
+"I never thought of their using girls," protested Jane.
+
+"Humph," snapped Carter, "ain't we using you? Ain't one of our best
+little operatives right this minute working in a nursegirl's garb
+pulling a baby carriage with a baby in it up and down Riverside Drive?
+Well, it can't be helped. You'd better beat it down-town to the Chief
+right away."
+
+"I'll take a subway express," said Jane, feeling somewhat crestfallen
+at his implied suggestion of failure.
+
+Twenty-five minutes later found her once more in Mr. Fleck's office.
+Thrilling with the excitement of it all she told him in detail how she
+had followed old Hoff and of his peculiar actions in the bookstore.
+
+"And here," she said, presenting the postcard, "is an exact copy of the
+cipher message he left there. I copied every figure, in the columns,
+just as they were set down. I don't suppose though you'll be able to
+make head or tail out of it. I know I can't."
+
+"Don't be too sure of that," smiled Chief Fleck, as he took the card.
+"When you get used to codes, most of them identify themselves at the
+first glance--at least they tell what kind of a code it is. That's one
+thing about the Germans that makes their spy work clumsy at times. They
+are so methodical that they commit everything to writing. Now the most
+important things I know are right in here"--he tapped his head. "Every
+once in a while they ransack my rooms, but they never find anything
+worth while. Now this code"--he was studying the card intently--"seems
+to be one of a sort that our friends from Wilhelmstrasse are
+ridiculously fond of using. It is manifestly a book code."
+
+"A book code," Jane repeated perplexedly. "I don't understand."
+
+"It is very simple when two persons who wish to communicate with each
+other secretly both have a copy of some book they have agreed to use.
+They write their message out and then go through the book locating the
+words of the message by page, line and word. That's what the three
+columns mean. Our only problem is to discover which is the book they
+both have. They often employ the Bible or a dictionary or--"
+
+He stopped abruptly and studied the columns of figures.
+
+"This code," he went on, "on its face is from a book that has at least
+544 pages. One of the pages has at least 76 lines--that's the middle
+column--so the book must be set in small type."
+
+"What book do you suppose it is?" asked Jane interestedly. She was glad
+now that she had listened to Carter. She was sure she was going to like
+being in the service. It was all so interesting, and she was learning so
+many fascinating things.
+
+"If my theory is right those letters indicate that the book used was an
+almanac. That's the book that Wilhelmstrasse made use of when a wireless
+message was sent in cipher to the German ambassador directing him to
+warn Americans not to sail on the Lusitania. They betrayed themselves at
+the Embassy by sending out to buy a copy of this almanac. Let's see how
+our theory works out."
+
+Taking up an almanac that lay on his desk he began turning to the pages
+indicated in the first column of figures, checking off the lines
+indicated in the second column and putting a ring around the words
+marked by the third column of figures.
+
+"Let's see--page 534--fifth line--second word--that's (eight). Now
+then--page 331--that's the chronology of the war in the almanac, so I
+guess we are on the right track--fifty-fourth line--sixth
+word--(transport)."
+
+"Isn't it wonderful!" cried Jane.
+
+"Damn them," he exploded. "I know we are on the right track. Some
+transports with our troops sailed this morning, and already the German
+spies are spreading the news, hoping to get it to one of their
+unspeakable U-boats."
+
+Quickly he ran through the rest of the cipher, writing it out as he went
+along:
+
+EIGHT--TRANSPORT--SAILED--THURSDAY--15,000--INFANTRY--FIVE DESTROYERS.
+
+As Fleck finished the message his face became almost black with rage.
+
+"Damn them," he cried again, "in spite of everything we do they get
+track of all our troop movements. Their information, whenever we succeed
+in intercepting it, is always accurate. If I had my way I'd lock up
+every German in the country until the war was over, and I'd shoot a lot
+of those I locked up. Until the whole country realizes that we are
+living in a nest of spies--that there are German spies all around us, in
+every city, in every factory, in every regiment, on every ship,
+everywhere right next door to us--this country never can win the war."
+
+"What does the '97' at the end mean?" questioned Jane timidly, a little
+bit frightened at his outburst, yet more than ever realizing the vast
+importance of his work--and hers.
+
+"Oh, that's nothing. Probably old Hoff's number. Most spies are known
+just by numbers."
+
+"Yes, of course," said Jane, flushing as she recalled that she herself
+was now "K-19." Was she a spy? Was Mr. Fleck a chief of spies? She
+always had looked on a spy as a despicable sort of person, yet surely
+the work in which they both were engaged was vital to American success
+at arms--a patriotic and important service for one's country.
+
+"I suppose," she said thoughtfully, unwilling to pursue the chain of her
+own thought any further, "that there is evidence enough now to arrest
+old Mr. Hoff right away."
+
+"You bet there is," said Mr. Fleck emphatically, "but that is the last
+thing I am thinking of doing yet. He is only one link in a great chain
+that extends from our battleships and transports there in the North
+River clear into the heart of Berlin. We've got to locate both ends of
+the chain before we start smashing the links. We've got to find who it
+is in this country that is supplying the money for all their nefarious
+work, from whom they get their orders, how they smuggle their news out.
+Most of all we have got to find where the end of the chain is fastened
+in our own navy. The traitors there are the black-hearted rascals I
+would most like to get. They are the ones we've got to get."
+
+"Yes, indeed," assented Jane, suddenly recalling the navy lieutenant she
+had seen in the Ritz chatting so confidentially with old Otto Hoff's
+nephew. Was he, she wondered, one of the links in the terrible chain?
+Was he the end--the American end of the chain?
+
+"We're certain about the old man now," said Fleck, rising as if to
+indicate that the interview was at an end. "We've got to get the young
+fellow next. There is nothing in this to implicate him. That's your job.
+Find out all you can about him. Get acquainted with him, if possible.
+That's one of the weakest spots about all German spies. They can't help
+boasting to women. Try to get to know this Fred Hoff. It's most
+important."
+
+"I'll do more than try," said Jane spiritedly. "I'll get acquainted
+right away. I'll make him talk to me."
+
+
+
+CHAPTER V
+
+ON THE TRAIL
+
+Few men, even fathers, realize how utterly inexperienced is the average
+well-brought-up girl, just emerged from her teens, in the affairs of the
+great mysterious world that lies about her. A boy, in his youth living
+over again the history of his progenitors, escapes his nurse to become
+an adventurer. At ten he is a pirate, at twelve a train robber, at
+fourteen an aviator, actually living in all his thoughts and experiences
+the life of his hero of the moment, learning all the while that the
+world about him is full of adventurers like himself, ready to dispute
+his claims at the slightest pretext, or to carry off his booty by
+prevailing physical force.
+
+Well-brought-up girls seldom are fortunate enough to have such educative
+experiences. Their friends are selected for them, gentle untaught
+creatures like themselves. Few of them learn much of the practical side
+of life. A boy is delighted at knowing the toughest boy in the
+neighborhood. A girl's ambitions always are to know girls "nicer" than
+she is. The average girl emerges into womanhood with her eyes blinded,
+uninformed on the affairs of life, business, politics, untrained in
+anything useful or practical, knowing more of romance and history than
+she does of present-day facts.
+
+If Chief Fleck had understood how really inexperienced Jane Strong
+actually was, it is a question whether he would have ventured to entrust
+so important a mission to her as he had done. Jane herself, as she left
+his office, aroused by his revelations of the treacherous work of
+Germany's spies, and uplifted by his appeal to her patriotism, felt
+enthusiastically capable of obeying his instructions. It seemed very
+simple, as he had talked about it. All she had to do was to get
+acquainted with the young man next door. Yet the further the subway
+carried her from Mr. Fleck's office after her second visit there that
+morning, the more her heart sank within her, and the fuller her mind
+became of misgivings.
+
+In a big city next door in an apartment house is almost the same thing
+as miles away. She ransacked her brain, trying to remember some
+acquaintance who might be likely to know the Hoffs, but failed utterly
+to recall any one. She reviewed all possible means of getting acquainted
+but could find none that seemed practical. Never in her life had she
+spoken to a man without having been introduced to him--except of course
+to Carter and Mr. Fleck, and these men, she told herself, were
+government officials, something like policemen, only nicer. At any rate,
+she knew them only in a business way, not socially. If she was to be
+successful in learning much about the Hoffs--about young Mr. Hoff--she
+felt that it was necessary to make them social acquaintances.
+
+She must manage to meet Frederic Hoff in some proper way, but how? She
+thought of such flimsy tricks as dropping a handkerchief or a purse in
+the elevator some time when he happened to be in it, but rejected the
+plan as disadvantageous. "Nice" girls did not do that sort of thing, and
+even though she was seeking to entrap her neighbor she did not for a
+moment wish him to consider her as belonging to the other sort. It
+rather annoyed her to find that she cared what kind of an impression she
+made on him. What difference did it make what a German spy thought of
+her, especially a murderer? Yet, she argued with herself, the better the
+impression she made at first the more likely she would be to gain his
+confidence, and that she knew would delight Mr. Fleck. Was Frederic
+Hoff, too, really, she wondered, a spy? Her face colored as she recalled
+the mental picture she last had had of him, gallantly and admiringly
+raising his cup to her as she left the Ritz, not obtrusively or
+impudently, but so subtly that she was sure that no one had observed it
+but herself. It seemed preposterous to associate the thought of murder
+with a man like him.
+
+As she entered the apartment house she was arguing still with herself
+about him. Her intuition told her that Frederic Hoff was a gentleman,
+and how could a gentleman be what Mr. Fleck seemed to think he was? As
+the door swung to behind her she gave a little quick breath of delight,
+for she had caught sight of a uniformed figure standing by the
+switchboard. She had recognized him at once. It was the naval
+lieutenant who had been at the Ritz. She heard him saying to the girl at
+the switchboard:
+
+"Tell Mr. Hoff, young Mr. Hoff, that Lieutenant Kramer is here. I'll
+wait for him down-stairs."
+
+Quick as a flash a course of action came into her mind. She saw an
+opportunity too good to be neglected. She hurried forward to where the
+lieutenant was standing, her hand outstretched, with a smile of
+recognition--feigned, but well-feigned--on her lips.
+
+"Why, Lieutenant Kramer," she cried, "how delightful. Have you really
+kept your promise at last and come to see the Strongs?"
+
+She could hardly restrain her amusement as she watched the embarrassed
+young officer strive in vain to recall where it was that he had met her.
+She had relied on the fact that the men in the navy meet so many girls
+at social functions that it is impossible for any of them to remember
+all they had met.
+
+"Really, Miss--" he stammered, struggling for some fitting explanation.
+
+"Don't tell me," she warned reprovingly, "that it isn't Jane Strong
+that you are here to see, after all those nice things you said to me
+that day we had tea aboard your ship."
+
+She was hoping he would not insist on going into particulars as to which
+ship it was. Fortunately she had been to functions on several of the war
+vessels, so that she might find a loop-hole if he was too insistent
+on details.
+
+"Indeed, Miss Strong," said Kramer, gallantly pretending to recall her,
+"I'm delighted to see you again. I've been intending to come to see you
+for ever so long, but you understand how busy we are now. In fact, it
+was business that brought me here to-day. I'm calling on Mr. Hoff, who
+lives here, to take him to lunch to discuss some important matters."
+
+At his last phrase Jane's heart thrilled. What important matters could
+there be that a navy lieutenant could fittingly discuss with a German,
+with the nephew of the man whose secret code message they had just
+succeeded in reading? Determining within herself to keep fast hold on
+the beginning she had made, she masked her real thoughts and let her
+face express frank disappointment.
+
+"How horrid of you," she continued, "when I was just going to insist
+that you stay and have luncheon with us."
+
+He was protesting that it was quite out of the question when the
+elevator brought down her mother, whom Jane at once summoned as an ally,
+feeling sure that considering how many men of her daughter's
+acquaintance she had met, it would be perfectly safe to keep up the
+deception.
+
+"Oh, mother," she cried, "you remember Lieutenant Kramer, don't you?
+I've just been urging him to stay and have luncheon with us. Do help me
+persuade him."
+
+"Of course I remember Mr. Kramer," fibbed the matron cordially, all
+unaware of her daughter's duplicity. "Do stay, Mr. Kramer, and have
+luncheon with Jane. I ordered luncheon for four, expecting to be home,
+and now I've been called away, but your aunt is there to chaperone you.
+It spoils the servants so to prepare meals and have no one to eat them,
+to say nothing of displeasing Mr. Hoover. It's really your duty--your
+duty as a patriot--to stay and prevent a food-waste."
+
+"I've just been trying to explain to your daughter that I was taking
+Mr. Hoff to luncheon with me. Here he is now."
+
+Mrs. Strong's eyes swept the tall figure approaching appraisingly and
+apparently was pleased with his aspect. As Mr. Hoff was presented she
+hastened to include him in the invitation to luncheon.
+
+"Have pity on a poor girl doomed to eat a lonely luncheon by her
+parent's neglect," urged Jane. "Really, you must come, both of you. Nice
+men to talk to are so scarce in these war times that I have no intention
+of letting you escape."
+
+"I'm in Kramer's hands," said Frederic Hoff gallantly, "but if he takes
+me to some wretched hotel instead of accepting such a charming
+invitation as this, my opinion of him as a host will be shattered."
+
+"But," struggled Kramer, realizing that it must be a case of mistaken
+identity and sure now that he never had met either Jane or her mother
+before, "we have some business to talk over."
+
+"Business always can wait a fair lady's pleasure," said Hoff. "Is this
+ruthless war making you navy men ungallant?"
+
+With a mock gesture of surrender, and as a matter of fact, not at all
+averse to pursuing the adventure further, Lieutenant Kramer permitted
+Jane to lead the way to the Strong apartment.
+
+Soon, with the familiarity of youth and high spirits, the three of them
+were merrily chatting on the weather, the war, the theater and all
+manner of things. Jane, in the midst of the conversation, could not help
+noting that Hoff had seated himself in a chair by the window where he
+seemed to be keeping a vigilant eye on the ships that could be seen from
+there. Even at the luncheon table he got up once and walked to the
+window to look out, making some clumsy excuse about the beautiful view.
+
+Determined to press the opportunity, Jane endeavored to turn the
+conversation into personal channels.
+
+"You are an American," she said turning to Hoff, "are you not? I'm
+surprised that you are not in uniform, too."
+
+"A man does not necessarily need to be in uniform to be serving his
+government," he replied. "Perhaps I am doing something more important."
+
+"But you are an American, aren't you?" she persisted almost impudently,
+driven on by her eagerness to learn all she possibly could about him.
+
+"I was born in Cincinnati," he replied hesitantly.
+
+She could not help observing how diplomatically he had parried both her
+questions. Mentally she recorded his exact words with the idea in her
+mind of repeating what he had said verbatim to her chief.
+
+"Then you _are_ doing work for the government?"
+
+Intensely she waited for his answer. Surely he could find no way of
+evading such a direct inquiry as this.
+
+"Every man who believes in his own country," he answered, modestly
+enough, yet with a curious reservation that puzzled her, "in times like
+these is doing his bit."
+
+She felt far from satisfied. If he was born in America, if he really was
+an American at heart, his replies would have been reassuring, but his
+name was Hoff. His uncle was a German-American, a proved spy or at least
+a messenger for spies. If her guest still considered Prussia his
+fatherland the answers he had made would fit equally well.
+
+"You're just as provokingly secretive as these navy men," she taunted
+him. "When I try to find out now where any of my friends in the navy are
+stationed they won't tell me a thing, will they, Mr. Kramer?"
+
+"I'll tell you where they all are," said Lieutenant Kramer. "Every
+letter I've had from abroad recently from chaps in the service has had
+the same address--'A deleted port.'"
+
+"I really think the government is far too strict about it," she
+continued. "My only brother is over there now fighting. All we know is
+that he is 'Somewhere in France.' War makes it hard on all of us."
+
+"Yet after all," said Hoff soberly, "what are our hardships here
+compared to what people are suffering over there, in France, in Belgium,
+in Germany, even in the neutral countries. They know over there, they
+have known for three years, greater horrors than we can imagine."
+
+The longer she chatted with him, the more puzzled Jane became. He
+seemed to speak with sincerity and feeling. Her intuition told her that
+he was a man of honor and high ideals, and yet in everything he said
+there was always reserve, hesitation, caution, as if he weighed every
+word before uttering it. Intently she listened, hoping to catch some
+intonation, some awkward arrangement of words that might betray his
+tongue for German, but the English he spoke was perfect--not the English
+of the United States nor yet of England, but rather the manner of speech
+that one hears from the world-traveler. Question after question she put,
+hoping to trap him into some admission, but skilfully he eluded her
+efforts. She decided at last to try more direct tactics.
+
+"Your name has a German sound. It is German, isn't it?" she asked.
+
+"I told you I was born in Cincinnati," he answered laughingly. "Some
+people insist that that is a German province."
+
+"But you have been in Germany, haven't you?"
+
+"Why do you ask?"
+
+"I was wondering if you had not lived in that country?"
+
+"I could not well have been there without having lived there, could I?"
+
+Kramer came to her rescue.
+
+"Of course he has lived there. Mr. Hoff and I both attended German
+universities. That was what brought us together at the start--our
+common bond."
+
+"Did you attend the same university?" asked Jane. She felt that at last
+she was on the point of finding out something worth while.
+
+"No," said Kramer, "unfortunately it was not the same university."
+
+She caught her breath and blushed guiltily. If Mr. Kramer had attended a
+German university he could not be an Annapolis graduate. He must be a
+recent comer in the American navy. She knew that since the war began
+some civilians had been admitted. It had just dawned on her that if this
+was the case, since visiting on board ships was no longer permitted, it
+clearly was impossible for her to have met him at any function on a
+warship. He must have known all along that she knew she never had met
+him. He must have been aware, too, that her mother did not know him.
+She felt that she was getting into perilous waters and fearful of making
+more blunders refrained from further questions. A vague alarm began to
+agitate her. If he had detected her ruse when she first had spoken to
+him, why had he not admitted it? What had been his purpose in accepting
+her invitation and in bringing into it his German friend, Mr. Hoff?
+
+The ringing of the telephone bell came as a welcome interruption. A maid
+summoned her to answer a call, and excusing herself from the table she
+went to the 'phone desk in the foyer.
+
+"Hello, is this you, Miss Strong?"
+
+It was Carter's voice, but from the anxious stress in it she judged that
+he was in a state of great perturbation.
+
+"Yes, it is Jane Strong speaking," she answered.
+
+"You know who this is?"
+
+"Of course. I recognize your voice. It's Mr. C--"
+
+A warning "sst" over the 'phone checked her before she pronounced the
+name and starting guiltily she turned to look over her shoulder,
+feeling relieved to see the two men still chatting at the table,
+apparently paying no attention to her.
+
+"I understand," she answered quickly. "What is it?"
+
+"You know that book I told you I was going to buy?"
+
+"Yes, yes!"
+
+"It's not there."
+
+"What's that? The book is gone!"
+
+"The book is there all right, but it's not the book I want."
+
+"Are you sure," she questioned, "that you looked at the right book?"
+
+"I looked at the one you told me to."
+
+"Are you certain--the fifth book on the second shelf."
+
+She heard a movement behind her and turning quickly saw Frederic Hoff
+standing behind her, his hat and stick in hand. Panic-stricken, she hung
+up the receiver abruptly. Had he been standing there listening? How much
+had he heard? He would know, of course, what "the fifth book on the
+second shelf" signified. Had her carelessness betrayed to him the fact
+that he and his uncle were being closely watched? Anxiously she studied
+his face for some intimation of his thoughts. He was standing there
+smiling at her, and to her agitated brain it seemed that in his smile
+there was something sardonic, defying, challenging.
+
+"I cannot tell you, Miss Strong, how much I have enjoyed your
+hospitality. You made the time so interesting that I had no idea it was
+so late. You will excuse me if I tear myself away at once. I have some
+important business that demands my immediate attention."
+
+"I hope you'll come again," she managed to stammer, "and you, too, Mr.
+Kramer."
+
+White-faced and terrified she escorted them out, leaving the telephone
+bell jangling angrily. As the door closed behind them, she sank weak and
+faint into a chair, not daring yet to go again to the 'phone until she
+was sure they were out of hearing.
+
+What was the "immediate business" that was calling them away so
+suddenly? She was more than afraid that her incautious use of the phrase
+"the fifth book on the second shelf" had betrayed her. What else could
+it mean? Why else would they have departed so abruptly?
+
+Mustering up her strength and courage she went once more to the 'phone.
+
+"Hello, hello, is that you, Miss Strong? Some one cut us off," Carter's
+voice was impatiently saying.
+
+"Hello, Mr. Carter," she called, "this is Jane Strong speaking. Where
+can I see you at once? It's most important."
+
+"I'll be sitting on a bench along the Drive two blocks north of your
+house inside of ten minutes."
+
+"I'll meet you there," she answered quickly, with a feeling of relief.
+
+The situation was becoming far too complicated, she felt, for her to
+handle alone. Carter would know what to do. If Hoff and Kramer had
+learned from her about the trailing of old Hoff, the sooner it was
+reported to more experienced operatives than she was the better.
+
+"Don't speak to me when you see me sitting on the bench," warned Carter.
+"Just sit down there beside me and wait till I make sure no one is
+watching us. I'll speak to you when it's safe."
+
+"I understand," she answered. "Good-by."
+
+As she hastened to don her hat and coat she was almost overwhelmed by a
+revulsion of feeling. Two days ago the world about her had seemed a
+carefree, pleasant, even if sometimes boresome place. Now she
+shudderingly saw it stripped of its mask and revealed for the first time
+in all its hideousness, a place of murders and spying and secret
+machinations. People about her were no longer more or less interesting
+puppets in a play-world. They were vivid actualities, scheming and
+planning to thwart and overcome each other. Almost she wished that her
+dream had been undisturbed and that she had not been waked up to the
+realities. Almost she was tempted to abandon her new-found occupation.
+
+Then, once more, a feeling of patriotic fervor swept over her. She
+thought of her brother fighting somewhere in the trenches. She pictured
+to herself the other brave soldiers in the great ships in the Hudson.
+She remembered the evil plotters with their death-dealing bombs,
+striving to bring about a ghastly end for them all before they might
+strengthen the lines of the Allies. She thought, too, of those
+humanity-defying U-boats, forever at their devilish work, guided to
+their prey by crafty, spying creatures right here in New York, more than
+likely by the very people next door.
+
+With her pretty lips set in a resolute line she left the house and
+walked rapidly north. Come what may she would go on with it. Her country
+needed her, and that was all-sufficient.
+
+
+
+CHAPTER VI
+
+THE MISSING MESSAGE
+
+After Jane left Carter at the drug-store, he did not cross immediately
+to the bookshop opposite. His detective work was not of that sort. He
+strolled leisurely around the corner long enough to give some directions
+to his two aides waiting there and then, moving across the street,
+paused in front of the window of books as if something there had
+attracted his attention. All the while he was keeping a sharp eye for
+any person who looked as if they might be connected in any way with old
+Hoff. Satisfied that his entrance was unobserved he strolled casually in
+and began looking over the volumes in the lending library. The lone
+clerk in the store--a young woman--at first volunteered some
+suggestions, but as they went unheeded she returned to her work of
+posting up the accounts.
+
+As soon as her attention was occupied Carter moved at once to the end
+of the shelf that Miss Strong had indicated and removed the fifth book.
+To his amazement he found nothing whatever concealed between the leaves.
+The books on either side on the same shelf failed to yield up anything.
+He tried the shelf above and the shelf below. Perhaps Miss Strong had
+been mistaken in the directions. He examined the books at the other end.
+There was nothing there. He recalled that the girl had said that no one
+except two girls had entered the store between the time she had
+discovered and copied the cipher and the time of his arrival. If these
+girls had not taken the message away there could be only one other
+explanation--the clerk in the bookstore must have removed it and
+concealed it somewhere.
+
+"Which of the war books do you think the best?" he asked for the purpose
+of starting a conversation.
+
+"There's that many it is hard to say, sir," the young woman answered.
+
+Something in her inflection made him look sharply at her. Her accent
+surely was English, or possibly Canadian. A few judicious questions
+quickly brought out the information that she came from Liverpool and
+that she had three brothers in the British army. Carter decided that it
+was preposterous to suspect her of being in league with German agents.
+There was only one other thing that could have happened. Some one
+else--some one who had eluded Miss Strong's notice--had removed the
+cipher message.
+
+Promptly he had telephoned to her to meet him. He was glad that he had
+done so, for her evident perturbation as she answered the 'phone both
+interested and puzzled him. Pausing just long enough to report to Chief
+Fleck, he hastened to the rendezvous, arriving there first. He selected
+a bench apart from the others, where the wall jutted out from the walk,
+and seating himself, idled there as if merely watching the river. In
+obedience with his instructions Jane, when she arrived, planted herself
+nonchalantly on the same bench, and paying no attention to him,
+pretended to be reading a letter.
+
+Presently Carter rose and stretching himself lazily, as if about to
+leave, turned to face the Drive, his keen eyes taking in all the
+passers-by. Apparently satisfied, he sat down abruptly and turned to
+speak to the girl beside him.
+
+"All right, K-19," he said, "it's safe. Now we can talk."
+
+"I've got such a lot to tell," cried Jane.
+
+"First," said Carter, "just where did you put that cipher message when
+you put it back?"
+
+"What!" cried the girl, her face blanching, "wasn't it there? Didn't you
+find it?"
+
+Carter shook his head.
+
+"It must be there," she insisted. "Are you sure you looked in the right
+book--the fifth book from the end on the second shelf on the up-town
+side of the store."
+
+"It's not there. I examined every book there, on the shelves above and
+below and at the other end, too."
+
+"The clerk in the store, that girl--must have hidden it," cried Jane
+with conviction.
+
+"That's not likely. She's an English girl--from Liverpool. She has three
+brothers fighting on the Allies' side. We can leave her out of it."
+
+"Who else could have taken it?"
+
+"There's only one answer," said Carter slowly and impressively. "Some
+one went into that store between the time you copied the message and
+the time I met you at the drug-store. You told me no one but a couple of
+girls had entered. Was there any one else? Think--think!"
+
+"There was no one," said Jane thoughtfully, "no one except the two girls
+together. I never thought of suspecting them."
+
+"What did they look like? Could you identify them?"
+
+"I did not notice them particularly," Jane confessed. "I was expecting
+Mr. Hoff's confederate to be a man."
+
+"They're using a lot of women spies," asserted Carter. "Don't you
+remember what the girls looked like?"
+
+"One of them," said Jane thoughtfully, "wore an odd-shaped hat, a sort
+of a tam with a red feather."
+
+"Would you know the hat again if you saw it?"
+
+"I think--I'm sure I would."
+
+"Well, that's something. Watch for that hat, and if you ever see it
+again trail the girl till you find out where she lives. If you locate
+her telephone Mr. Fleck at once. And now, what has happened to you?"
+
+"I've so much to tell, important, very important, I think."
+
+She hesitated, wondering how much Carter was in the chief's confidence.
+Did he know the import of the cipher message she had discovered? Ought
+she to talk freely to him?
+
+"Do you know what those numbers meant?" she asked.
+
+"Yes," he replied, "about the eight transports sailing. The Chief told
+me about it."
+
+"Well," she said, with a sigh of relief, "I have become acquainted with
+young Mr. Hoff already. I've just had luncheon with him."
+
+"That's fine," he cried enthusiastically. "A lucky day it was I ran
+across you."
+
+"When you 'phoned me he was there in our apartment, he and a navy
+lieutenant, Mr. Kramer."
+
+Attentively he listened as she told of the ruse by which she had
+inveigled them into coming to luncheon, reminding him that it was the
+same naval officer that he himself had seen in close conversation with
+Hoff at the Ritz the day before. He nodded his head in a satisfied way.
+
+"They are together too much to be up to any good," he commented. "Tell
+me the rest. What made you so rattled when I 'phoned you?"
+
+He listened intently as she told of finding young Hoff standing right
+behind her as she had inadvertently mentioned aloud "the fifth book."
+
+"Do you suppose," she questioned anxiously, "that he overheard me and
+understood what we were talking about? He left right away after that. I
+do hope I didn't betray the fact that they are being watched."
+
+"We can't tell yet," said Carter. "The precautions they take and the
+roundabout methods they have of communicating with each other show that
+all Germany's spies constantly act as if they knew they were under
+surveillance. In fact, I suppose every German in this country, whether
+he is a spy or not, can't help but notice that his neighbors are
+watching him--and well they might."
+
+"I don't see why," cried Jane, "Mr. Fleck did not have old Mr. Hoff
+locked up right away. He could not do any more damage then, or be
+sending any more messages about our transports."
+
+"That wouldn't have done the least bit of good," said Carter decisively.
+"Watching our transports sail and spreading the news is only one of many
+of their activities. Somewhere in this country there is a master-council
+of German plotters, directing the secret movements of many hundreds,
+perhaps many thousands of spies and secret agents. They have their work
+well mapped out. They have men fomenting strikes in the government
+shipyards and stirring up all kinds of labor troubles. Others are busy
+making bombs and contriving diabolical methods of crippling the
+machinery in munition plants. A flourishing trade in false passports is
+being carried on, enabling their spies to travel back and forth across
+the Atlantic in the guise of American business men, ambulance drivers,
+Red Cross workers and what not. Still others of their agents are
+detailed to arrange for the shipping of the supplies Germany needs to
+neutral countries. By watching shipping closely they gather information,
+too, that is of value to the U-boat commanders. Every time there is any
+sort of activity against the draft, or peace meetings, or Irish
+agitation, we find traces of German handiwork. We have dismantled and
+sealed up every wireless plant we could find in America except those
+under direct government control, yet we are positive that every day
+wireless messages go from this country somewhere--perhaps to Mexico or
+South America, and from there are relayed to Germany, probably by way of
+Spain. Think of the enormous amount of money required to finance these
+operations and keep all these spies under pay. While we try to thwart
+their plans as we find them, all our efforts are constantly directed
+toward discovering who controls and finances their damnable system. We
+seldom if ever arrest any of the spies we track down, but keep watching,
+watching, watching, hoping that sooner or later the master-spy will be
+betrayed into our hands."
+
+"You don't think then," said Jane disappointedly, "that old Mr. Hoff is
+one of the important spies."
+
+"We can't tell yet. He may be just one of the cogs--perhaps what they
+call a control-agent. We don't know yet. Germany has been building up
+her spy system forty years, and it is ingenious beyond imagination. Her
+codes are the most difficult in the world. It took the French three
+years and a half to decipher a code despatch from Von Bethmann Hollweg
+to Baron von Schoen. By the time they had it deciphered in Paris the
+Germans had discovered what they were doing and had changed the code. It
+is seldom any one of the German spies knows much about the work that
+other spies are doing. The rank and file merely get orders to go and do
+such a thing, or find out about such a thing. Often they are not told
+what they are doing it for. They obey their orders implicitly in detail
+and make their reports, get new orders and go on to do something else.
+Only their master spy-council here knows what the summary of their
+efforts amounts to. Arresting old Hoff, or a dozen more like him, would
+not cripple them much. Other men would be assigned in their places, and
+the nefarious work would go on."
+
+"I don't know," insisted Jane thoughtfully. "I believe that old Mr. Hoff
+is a far bigger spoke in the wheel than you think. I watched his face as
+I followed him this morning. He is a man of great intelligence, and I
+should judge a man of education."
+
+"They'd hardly be using a man of that sort to carry messages," objected
+Carter. "Maybe you're right. We have not watched him long enough to find
+out. We've got nothing yet on the young fellow. Maybe he's the real boss
+of the outfit. At any rate he is the one the Chief is anxious to have
+you keep tabs on. Are you to see him again?"
+
+"Oh, yes," the girl answered quickly, a touch of color coming to her
+face, "I think so. I asked him to come to see me. I think--in fact I'm
+sure--he will. Do you want me to watch the bookshop to see if they leave
+any more messages there?"
+
+"No," said Carter. "I've got one of my men assigned to that. You keep
+after the young fellow. Say, does your father keep an automobile?"
+
+"Yes, but it's been put up for the winter. We're going to bring it out
+as soon as Dad can find a chauffeur. Our man--the one we had last
+year--has been drafted, and good chauffeurs are scarce now. Why did
+you ask?"
+
+"I'll find you a chauffeur," said Carter decisively.
+
+"You mean"--Jane hesitated--"a detective?"
+
+Carter grinned.
+
+"An agent like you and me. K-27 is an expert chauffeur and mechanic with
+fine references. His last job was with the British High Commission, and
+they gave him good testimonials."
+
+"What do you want him to do?"
+
+"Driving the Strong car makes a good excuse for him to be around without
+exciting suspicion. He might even come up-stairs once in a while to get
+orders or do little repair jobs around the apartment. Some day,
+supposing the people next door were all out, he might even succeed in
+planting a dictograph so that you could sit there in your room and hear
+all that was going on and what the Hoffs talked about. That would help a
+lot. If ever he was caught prowling about the hall, the fact that he was
+your chauffeur would provide him with an alibi. Do you think you can fix
+it up with your father?"
+
+"I'm sure of it. When can he come?"
+
+"The sooner the better--to-night--to-morrow."
+
+"I'll tell Dad at dinner to-night that I've learned of a good chauffeur
+and have asked him to come in at eight this evening."
+
+"Fine," said Carter. "He'll be there. And don't forget to report once a
+day to the Chief."
+
+"I won't."
+
+"And if anything unexpected turns up," said Carter, "and you need help,
+take a good look at that nurse that is passing."
+
+Jane turned curiously to inspect a buxom girl in a drab nurse's costume
+who was wheeling a baby carriage along the sidewalk near-by. Seeing
+herself observed the girl stopped, and at a sign from Carter wheeled her
+charge up to where they were standing.
+
+"K-22," said Carter, "I want to introduce you to K-19."
+
+Gravely the two girls, nodding, inspected each other.
+
+"She always wears a blue bow at her neck," Carter added, "so you can
+recognize her by that."
+
+The girl smilingly nodded again and wheeled the carriage on up the
+Drive.
+
+"Who is she?" Jane asked eagerly, turning to Carter.
+
+"Just K-22," said the agent, "and all she knows about you is that you
+are K-19. That's the way we work in the service mostly. The less one
+operative knows about another the better, for what you don't know you
+can't talk about."
+
+"Doesn't she even know my name?" persisted Jane.
+
+"She may have found it out for herself while she has been watching the
+Hoffs, but we didn't tell her. Nobody in the service knows who you are
+except the Chief and myself--and of course K-27 will have to know if he
+takes the chauffeur's job."
+
+"What is his name?"
+
+"I don't know yet," said Carter gravely. "I haven't seen his references,
+so I don't know what name they are made out in. You can find out what to
+call him when he reports to-night. You'll see that he gets the job?"
+
+"Indeed I will," answered Jane, experiencing a sense of relief at the
+prospect of having some one at hand in the household with whom she could
+discuss her activities.
+
+And as she had anticipated she had little difficulty in interesting her
+father in the subject of a new chauffeur. Mr. Strong for several days
+had been trying to find one without success.
+
+"You say this man's last place was with the British High Commission."
+
+"Some one of the girls was telling me," she prevaricated. "I asked her
+to tell him to come here to-night at eight. He ought to be here
+any minute."
+
+Presently the candidate for the place was announced.
+
+"Mr. Thomas Dean to see about a chauffeur's position," the maid said as
+she brought him in, and while her father questioned him, Jane studied
+him carefully.
+
+He could not be more than thirty, she decided, and the voice in which he
+answered her father's questions was surely a cultivated one. It would
+not have surprised her in the least to have learned that he was a
+college man. Even in his neat chauffeur's uniform he seemed every inch
+a gentleman. He had been driving a car for twelve years, he explained.
+No, he did not drink and had never been arrested for speeding.
+
+"Are you a married man?"
+
+Jane listened curiously for his answer to this question of her father's.
+Surely it would be far more interesting if he wasn't. Of course, he was
+a chauffeur and a detective, but somehow she could not help feeling,
+perhaps because of his easy manner, that more than likely most of the
+cars he had driven were cars that he himself had owned. K-27 she decided
+was going to be quite a satisfactory partner to work with.
+
+"There's just one thing," said her father. "You say you are not married.
+I can't understand why it is that you are not in the army."
+
+"I am not eligible," said Thomas Dean calmly, though Jane thought she
+could detect a twinkle in his eye. "One of my legs has been broken in
+three places."
+
+"But there are things a young fellow can do for his country besides
+marching," insisted Mr. Strong. "The government needs mechanics, too."
+
+"I know," said Thomas Dean, almost humbly, "but I have a mother, and my
+father is dead."
+
+Jane smiled a little to herself at his answer. She noted how carefully
+he had avoided saying anything about having a mother to support. It
+would not have surprised her in the least to have learned that he was a
+millionaire, yet her father, ordinarily shrewd in judging men,
+apparently was satisfied.
+
+"Supporting a mother, I suppose, comes first," he said. "Well, Dean,
+when can you come?"
+
+"To-morrow morning if you like," the new chauffeur answered, nodding
+gravely to Jane as he withdrew.
+
+Mr. Strong, as soon as they were alone, spoke enthusiastically about the
+young man, complimenting Jane on having discovered him, and as he did so
+a revulsion of feeling swept over her. For the first time she realized
+into what duplicity her work for the government was leading her. She had
+pledged her word to Chief Fleck that she would keep her activities an
+absolute secret even from her parents. Already she was deceiving them,
+bringing into the household an employee who really was a detective, a
+spy. She was tempted to tell her father, at least, what she was doing.
+He, she knew, was filled with a high spirit of patriotism. While he
+might not wholly approve of what she herself was doing she might be able
+to convince him of the necessity of it. If she could only tell him, her
+conscience would not trouble her, but there was her promise--her sacred
+promise; she couldn't break that.
+
+While with troubled mind she debated with herself between her duty to
+her parents and her duty to her country, one of the maids came in with a
+box of flowers for her.
+
+Eagerly she cut the string and opened the box. Chief Fleck especially
+wanted her to cultivate young Hoff's acquaintance. If her suspicion as
+to the sender were correct, she could feel that she had made an
+auspicious beginning.
+
+In a tremor of excitement she snatched off the lid of the box and tore
+out the accompanying card from its envelope.
+
+"Mr. Frederic Johann Hoff," it read, "in appreciation of a most
+profitable afternoon."
+
+Wondering at the peculiar sentiment of the card she tore off the
+enclosing tissue paper from the flowers. Orchids, wonderful, delicately
+tinted orchids, nestled in a sheaf of feathery green fern--five of them.
+
+"Five orchids--the fifth book--a profitable afternoon."
+
+Jane felt sure now she had betrayed the government's watchers to at
+least one of the watched.
+
+
+
+CHAPTER VII
+
+THE WOMAN ON THE ROOF
+
+It is amazing how much information on any given subject any one--even a
+wholly inexperienced person like Jane Strong--can acquire within a few
+days when one's mind is set resolutely to the task. It is much more
+amazing how much one can learn when aided and abetted by an experienced
+chauffeur, or more properly speaking a mysterious and cultured secret
+service operative, masquerading as an automobile driver.
+
+Who Thomas Dean was, why he was in the secret service, and what his real
+name was, were questions that kept perpetually puzzling Jane. In the
+presence of her father and mother, so skilful an actor was he that it
+was hard to believe him anything but what he appeared to be, a
+respectful, intelligent and prompt young man who knew the traffic
+regulations and the anatomy of automobiles. When he and Jane were by
+themselves he invariably threw off his mask to some extent. He became
+the director instead of the directed, though never letting anything of
+the personal relation creep in. That he was college-bred, Jane felt
+certain. He spoke both German and French much better than she did. He
+occasionally used words that no ordinary chauffeur would be likely to
+know the meaning of. Sharing the secret of such a mission as theirs,
+they quickly found themselves on a friendly basis, yet the girl
+hesitated whenever her curiosity prompted her to try to find out
+anything that would reveal his identity. There was always present the
+feeling that any exhibition of undue curiosity on her part would be a
+disappointment to her employer. The chief disapproved of curiosity
+except on one subject--what the Germans were doing.
+
+Many things Jane and her aide learned about the Hoffs in the days
+following Thomas Dean's coming, reporting them all as directed. Of how
+much or of how little value her discoveries were Jane had no means of
+knowing. Chief Fleck seemed satisfied but was always urging her to
+acquire more information and more details, always details. Dean, too,
+had seconded the warning about observing even what seemed to be
+insignificant trifles.
+
+"Most of the Germans," he said to her, "you will find are very
+methodical. They like to do things according to schedule. For instance,
+I learned yesterday that old Hoff and his nephew frequently go off on
+all-day automobile trips. They always go on Wednesday."
+
+"Are they going to-morrow?"
+
+"The presumption is that they will. They have done so every Wednesday
+for six weeks."
+
+"Can't we follow them in our car?" cried the girl, "and see what they
+are up to?"
+
+Dean shook his head.
+
+"The Chief is looking out for that. There is more important work for us
+to do right here. I want to try to install a dictograph in their
+apartment."
+
+"How exciting."
+
+"You must find some excuse for me to come up into your apartment and see
+to it that none of your people are about."
+
+"That will be easy. Mother and Aunt will be out all day, and it is
+cook's afternoon off. I can easily send the maids out."
+
+"But that's not all. There is the Hoffs' servant to be disposed of."
+
+"I don't see how I can manage that," said Jane. She could think of no
+possible way of overcoming that difficulty.
+
+"She's an old German woman--Lena Kraus," continued Dean. "I've found out
+that she always washes on Wednesdays. When she goes up on the roof in
+the afternoon to get the clothes will be our time. It will be your job
+to see that she stays there until I am through. It will not take me more
+than half an hour."
+
+"But what will I do if she starts to come down? How will I stop her?"
+
+"You'll have to use your wits. Keep her talking as long as you can. When
+she starts down come with her. Press the elevator button four times.
+I'll leave the door of the Hoff apartment open and very likely will hear
+it in time to get away."
+
+"But how'll you get their door open?"
+
+Dean smilingly drew forth a key.
+
+"I borrowed the superintendent's bunch last night, pretending I had lost
+the key to my locker in the basement. I knew he had a master-key that
+unlocks all the apartment doors, and there was no trouble in picking it
+out. I had some wax in my hand and made an impression of it right under
+his nose."
+
+"How clever," cried Jane, "but suppose the Hoffs do not go off
+to-morrow. What will we do then?"
+
+"You are taking tea with young Hoff this afternoon, aren't you?"
+
+"Yes," said Jane, "that is, he asked me to. I am to meet him at the
+Biltmore at five."
+
+"When you're with him propose doing something together to-morrow
+afternoon. See what he says."
+
+"That's an excellent idea. I'll ask him to go to the matine with me."
+
+"That will do splendidly. Has he been with that navy officer lately?"
+
+"Not since Sunday, to my knowledge. I wonder if old Mr. Hoff has left
+any more cipher messages at the bookshop?"
+
+"No," said Dean, "he hasn't. The place has been constantly watched, but
+he hasn't been near it since that first day."
+
+"I'm afraid," sighed Jane despondently, "I betrayed the fact that we
+were watching them to the nephew. He overheard me talking to Carter
+about the 'fifth book,' and of course he knew what it meant. I'm certain
+the old man is still reporting about our transports. Every day I can
+hear some one telephoning to him. He waits for the message, and then he
+goes out."
+
+"He certainly is expert in eluding shadowers," admitted Dean. "Every day
+he has been followed, but always he manages to give the operatives the
+slip. He must know he is being watched."
+
+"I'm anxious to know what the nephew will say to me to-day," said Jane.
+"I know he knows what I am doing. He looks at me in such an amusedly
+superior way every time he sees me."
+
+"Be careful about trying to pump him," cautioned Dean. "He strikes me as
+by far the more intelligent of the two. It would not surprise me in the
+least if he were not old Hoff's nephew at all, but really his superior,
+sent over especially by Wilhelmstrasse to take charge of the plotters.
+He doesn't in the least resemble old Hoff."
+
+"No indeed, he doesn't," admitted Jane. "He certainly is clever, too.
+We haven't learned a single thing that incriminates him, have we?"
+
+"Nothing definite, yet everything taken together looks damaging enough.
+Here is a young German of military age and appearance, who arrived from
+Sweden just before we went into the war. He has plenty of money and
+spends his time idling about New York, in frequent communication with at
+least one navy officer. He selects a home overlooking the river from
+which our soldiers are departing for France. You yourself saw him
+pursuing K-19--the other K-19--who a few hours afterward was found
+murdered."
+
+"Things don't look right," Jane agreed, yet a few hours later as she sat
+opposite the young man at tea, she found herself doubting. It seemed
+incredible, impossible, that Frederic Hoff could be a murderer. Her
+instinctive sense of justice forced her to admit that it was hard for
+her to believe him even a spy. He seemed so cultured, so clean, so
+straightforward, so nice. If she had not seen that unforgettable look of
+hate on his face that night as she watched him from the window she
+could not, she would not have believed evil of him.
+
+The tremor of nervous excitement in which she met him quickly passed,
+and she found herself once more chatting intimately with him and
+enjoying it. He talked well on practically all subjects, showing
+reserve only when she tried to draw him out about himself. Her previous
+experiences with the opposite sex had taught her that most men's
+favorite topic of conversation is themselves, but Mr. Hoff appeared to
+be the exception. Adroitly he baffled all her efforts to get him to
+discuss his family, his achievements, or his past, even when she sought
+to encourage intimacy by telling about her brother who was abroad in
+Pershing's army.
+
+"You must let me be your big brother while he is away," her escort had
+suggested gallantly.
+
+"All right, brother," she had challenged him. "I'll take you on at once.
+I have seats for a matine to-morrow. I'd much rather go with a brother
+than with one of the girls."
+
+"I would be delighted," he answered unsuspectingly, "but unfortunately I
+have an engagement that takes me out of town."
+
+"We'll go next week, then--Wednesday."
+
+"A week is too long to wait. Let me take you to a matine on Saturday."
+
+Jane hesitated. At times her conscience troubled her not a little. While
+satisfied that the importance of her trust wholly justified her actions,
+she disliked any deception of her family.
+
+"Wouldn't it be better," she parried, "if you came to call on me some
+evening first? You've only just met my mother, and I would like you to
+know Dad, too."
+
+"May I?" he cried with manifest pleasure. "How about to-morrow evening?"
+
+"That's Wednesday," she answered slowly. That was the day she and Dean
+were planning to put in a dictograph. She wondered at herself calmly
+carrying on this casual conversation with the man she was planning to
+betray. Coloring a little from the very shame of it, she continued, "How
+about making it Thursday evening?"
+
+"Delighted," cried Hoff, "and about Saturday's matine--what haven't you
+seen?"
+
+Glad for the respite of at least twenty-four hours, Jane, as they
+talked, watched his face, his expression, his eyes. Regardless of the
+things she believed about him, he impressed her as honest and sincere.
+Certainly there was no mistaking the fact that his liking for her and
+his delight in her society were wholly genuine. Her heart warned her
+that it was his intention to press their new-formed acquaintance into
+close intimacy. Was he, she wondered, like herself, pretending
+friendship merely to unmask secrets for his government? No, she could
+not, she would not believe it. She felt sure that his admiration was
+unfeigned. Something told her that quickly his ardor and determination
+might lead her into embarrassing circumstances. He might even ask her to
+marry him. For a moment she was overcome with timidity and tempted to
+stop short on her new career, but there came to her the thought of the
+brave Americans in the trenches, of the soldiers at sea, of the brutal,
+lurking U-boats, and sternly she put aside all personal considerations.
+
+"You spoke of going out of town," she said when the subject of the
+matine had been disposed of. "Don't you find train travel rather
+disagreeable these days?"
+
+"Fortunately I'm motoring."
+
+"That will be nice, if you don't have to travel too far."
+
+"It is quite a distance for one day, but I am used to it. I make the
+trip often."
+
+Feeling that at least she had learned something, Jane rose to go. She
+knew that both the Hoffs would be out of the way to-morrow. The
+inference from his last remark was that they were going to the same
+place they had gone on previous Wednesdays. That was something to report
+to Mr. Fleck.
+
+"My car is outside," she said as they rose. "Can't I take you home?"
+
+"Sorry," said her host, "but I am dining here to-night. Lieutenant
+Kramer is to join me."
+
+"Remember me to him," she said as he escorted her to the automobile,
+driven by Dean.
+
+A block away from the hotel she tapped on the glass, and as Dean brought
+the car to a stop she climbed into the seat beside him. Only a week ago
+she would have criticized any girl who rode beside the chauffeur. In
+fact she had spoken disapprovingly of a girl in her own set who made a
+habit of doing it, but now she never gave it a thought. Many things in
+her life seemed to have assumed new aspects and values since she had
+entered on a career of useful activity. In her was rapidly developing
+something of her father's ability and directness. As she wanted to talk
+confidentially with Dean, she went the easiest way about it, entirely
+regardless of appearances.
+
+"Apparently you carried it off well," he commented.
+
+"I hope so," she answered, coloring a little. "They're making their
+usual Wednesday motor trip."
+
+"He did not tell you their destination?"
+
+"No, but Lieutenant Kramer is dining with him to-night at the Biltmore."
+
+"Fine. Those things the Chief can take care of. That leaves the way
+clear for us to-morrow afternoon."
+
+"What excuse will I make for having you come up to the apartment?"
+
+"You want me to change some pictures. That will account for the wire if
+I'm caught."
+
+"I hope no one sees you."
+
+"Nobody'll see me but the elevator man, and he'll think nothing of it."
+
+Apparently, too, Dean was right, for the next afternoon he entered the
+Strong apartment carrying a suitcase in which was concealed his
+apparatus and the necessary wire.
+
+"Hurry," cried Jane, who was waiting for him. "The Hoffs' maid has just
+gone up on the roof."
+
+"We can safely give her at least a few minutes," said Dean setting to
+work to make a hole through the wall into the apartment adjoining. Just
+as he had finished making it and had pushed one end of the wire through,
+the telephone bell rang, and Jane in dismay sprang to answer it.
+
+"Disguise your voice," warned Dean. "If it is a caller say there is no
+one home."
+
+"It was Lieutenant Kramer calling," said Jane as she returned.
+
+"Did he recognize your voice?"
+
+"I don't think so."
+
+"What did he say?"
+
+"He said to tell Miss Strong that he had called."
+
+"Then he didn't suspect you."
+
+"Isn't there danger, though, that he may come up to the Hoff
+apartment?"
+
+Dean sprang to the window and looked out at the street below.
+
+"No, there he goes up the street. He evidently did not try to see if the
+Hoffs were at home. That's funny."
+
+"Why funny?"
+
+"It means of course that he, too, knows about those Wednesday trips the
+Hoffs make."
+
+Cautiously he opened the door into the public hall. There was no one
+about. Catlike in swiftness and silence he moved to the Hoff door and
+inserted his new-made key. It worked perfectly.
+
+"Now," he whispered to Jane, "to the roof--quick. I must not be taken by
+surprise. Give me at least ten minutes more--fifteen if you can."
+
+Quickly he passed inside, closing the door behind him all but a barely
+noticeable crack, as Jane rang for the elevator and bade the operator
+take her to the roof. As she emerged there and stood waiting for the
+elevator to descend again, an ornamental lattice screened her from the
+rest of the roof. Cautiously and curiously she peered between the
+slats, trying to see what the Hoff servant was doing at the moment. She
+decided that she would not reveal her presence until the woman made
+ready to go down-stairs.
+
+As from behind her screen she scanned the roof she espied old Lena over
+on the side next the river bending over a half-filled basket of clothes,
+apparently putting into the basket some of the freshly dried laundry
+from the lines extending all over the roof. As Jane watched her the old
+woman straightened herself up and cast a cautious glance about.
+Apparently satisfied that she was alone she whipped out something from a
+pocket in her apron and turned in the direction of the river.
+
+Jane gasped in amazement, a thrill of excitement sweeping over her at
+this new discovery. It was plain that the old servant was studying the
+transports in the river below through a pair of powerful field glasses.
+Curiously Jane observed her, wondering what she was trying to ascertain,
+wondering if through the glasses she was able to identify the
+battleships and other boats. Old Lena's next move was still more
+puzzling. Hastily dropping her glasses into the basket she began to
+hang again on the line some of the clothes. They were handkerchiefs,
+Jane noted interestedly, one large red one, and the rest white, some
+large, some small, a whole long row of nothing but handkerchiefs.
+
+All at once it came to Jane what it must mean. The arrangement of the
+handkerchiefs must be some sort of a code. She studied the way they were
+placed, committing the order to memory. "Red--two large--one small--one
+large--one small." Of course it was a code, a signal to some one aboard
+one of the ships.
+
+The line of handkerchiefs completed old Lena once more took up her
+glasses, first looking around as before to see if any one were on the
+roof. How Jane wished that she, too, could see the ships from where she
+stood. Was some traitor in the navy wigwagging to the old woman? She was
+tempted to spring forward and seize her and stop this dastardly
+signalling, but she remembered her duty. She was there to see that Dean
+was not surprised by old Lena's return. So long as the woman kept
+signalling he was safe.
+
+Once more the laundress dropped her glasses and began frantically
+rearranging the handkerchiefs. Again Jane noted their order--red--two
+small--one large--three small--two large. Again the laundress resorted
+to the glasses, and at last, apparently satisfied, began taking down the
+rest of the laundry and making ready to leave the roof. Trying to act as
+if she had just arrived, Jane stepped boldly forward.
+
+"I wonder," she said approaching the woman, "if you can tell me where I
+can find a good laundress."
+
+"_Nicht versteh_" said old Lena, eyeing her suspiciously and hostilely,
+and at the same time attempting to pass her with the basket of clothes.
+
+Deliberately blocking the way, Jane repeated her question, this time in
+German, feeling thankful that her language studies at school were not
+wholly forgotten and that they had included such practical phrases as
+those required to hire and discharge maids and complain about the
+quality of their work.
+
+"I know no one," the old woman answered her, this time in English.
+
+Jane breathed fast with excitement. The laundress' slip of the tongue,
+after denying that she understood, was evidence in itself of her
+deliberate duplicity. Realizing her mistake, the old woman now sullenly
+refused to answer any questions, merely shaking her head and trying to
+dodge past and escape.
+
+To prolong the questioning, Jane felt, would be only to arouse
+suspicion, and reluctantly she allowed old Lena to precede her to the
+elevator, anticipating her, however, in ringing the bell, pressing the
+button four times as Dean had directed. As they descended together she
+was almost in a panic. How long had she kept the laundress on the roof?
+She really had no idea. She had been so absorbed in her new discovery
+she had given no thought to the time. For all she knew she might have
+been there only five minutes. Had Dean had time to finish his work?
+
+Almost frenzied with anxiety, wondering if it were too soon, she moved
+forward in the car so as to obstruct old Lena's view through the door as
+it opened. One glance showed her the Hoff door now tightly closed, and
+she thought she heard the door of her own apartment just closing.
+Suddenly she remembered that she had gone up on the roof without a key.
+It would be a pretty pass if Dean were still in the Hoff apartment and
+she couldn't get into her own.
+
+All in a tremble she pressed the button of her own door, waiting,
+however, to see that the laundress was out of the hall. It was Dean who
+opened the door, and she all but fainted in his arms as she saw that he
+was back in safety.
+
+"It's done," he cried gleefully, as he caught her and drew her within,
+closing the door carefully behind her. "I just finished my work as you
+came down."
+
+Great drops of perspiration still stood on his forehead and he was
+breathing rapidly.
+
+"Why, what's the matter?" he cried, noticing for the first time Jane's
+perturbation. "Was it too much for you? What happened?"
+
+"Put this down quick, quick," gasped Jane, "Red--two large--one
+small--one large--one small--and then--red--two small--one large--three
+small--two large."
+
+Wonderingly he complied, jotting down what she told him in his notebook,
+and turning to ask her what it meant, discovered that she had fainted.
+
+
+
+CHAPTER VIII
+
+THE LISTENING EAR
+
+"I don't know what is the matter with Jane," sighed Mrs. Strong a few
+days after the employment of the new chauffeur.
+
+"She's not ill, is she?" responded her husband. "I never saw her looking
+more fit."
+
+"She looks all right," said her mother. "It is the peculiar way she is
+acting that bothers me. She spends hours and hours moping in her room,
+and then there are times when she takes notions of going out and is
+positively insistent that she must have the car."
+
+"Maybe she's in love," suggested Mr. Strong, resorting to the common
+masculine suspicion.
+
+"With whom?" retorted his wife indignantly. "I don't believe there is an
+eligible man under forty in all New York. None of the men are thinking
+about marriage these days. They all want to go to France, even the
+married ones. I believe you'd go yourself if you were a few
+years younger."
+
+"I certainly would," announced her husband enthusiastically.
+
+"Jane tells me she is writing a novel," Mrs. Strong continued, "and
+that's why she stays in her room so much. I hope she won't turn out to
+be literary."
+
+"Don't worry," advised Mr. Strong. "With all the men off to war you'll
+find young women doing all kinds of funny things to work off their
+energy. If a girl can't be husband-hunting, she's got to be doing
+something to keep busy. There are worse things than trying to write
+novels. Jane is all right. Let her alone."
+
+So, even though her mother's suspicions had been aroused, the girl in
+the next few days managed to spend many hours with her ears glued to the
+receiver of the dictograph without being discovered. In the Hoffs'
+apartment Dean had succeeded in locating it over the dining-room table,
+concealed in the chandelier, and in Jane's room the other end rested in
+the back of a dresser drawer that she always carefully locked
+when absent.
+
+The novelty of listening for bits of her neighbors' conversation
+quickly wore off. To sit almost motionless for hours listening,
+listening intently for every sound, hearing occasional words spoken
+either in too low tones or too far distant to make them understandable,
+to record bits of conversation that sounded harmless, yet might have
+some sinister meaning, became a most laborious task. Yet persistently
+Jane stuck at it. The greater knowledge she gained of the plottings of
+the German agents, the more important and vital she realized it was for
+every clue to be diligently followed in the hope that the trail might at
+last reach the master-spy, whose manifold activities were
+menacing America.
+
+In general she was disappointed with the results of her listening. To be
+sure they had furnished indisputable evidence of something they already
+had ascertained--that old Hoff, despite being a naturalized American,
+still was a devoted adherent of the ruler of Germany. Nightly as he and
+his nephew sat down to dinner she could hear his gruff, unpleasant voice
+ceremoniously proposing always the same toast:
+
+"Der Kaiser!"
+
+Even when the younger Hoff was dining out, as he sometimes did, Jane
+could hear the old man giving the toast, presumably with only the old
+servant for an auditor. That the woman, too, was a spy, as well as
+servant, Jane had known since the day on the roof, but so far neither
+she nor Dean had been able to make anything out of her handkerchief
+code, though both were sure the messages related to the sailings of
+transports.
+
+Only once had she heard anything that she deemed really important. One
+evening, as uncle and nephew dined, there had been an acrimonious
+dispute.
+
+"Have you it yet?" the uncle had asked in German.
+
+"Not yet," Frederic had answered.
+
+His seemingly simple reply for some reason appeared to have stirred the
+elder man's wrath. He broke into a volley of curses and epithets,
+reproaching his nephew for his delay. In the rapid medley of
+oaths and expostulations Jane could distinguish only occasional
+words--"afraid"--"haste"--"all-highest importance"--"American swine."
+The younger Hoff had appeared to exercise marvelous self-control.
+
+"There is yet time," he answered calmly.
+
+"Donnerwetter," the old man had exclaimed. "There is yet time, you
+say--and Emil the wonder-worker almost ready has. It must be done
+at once."
+
+The outburst over, old Hoff had subsided into inarticulate mutterings,
+evidently busy with his food, leaving Jane to wonder futilely who Emil
+might be, what he meant by the "wonder-worker," and what particular task
+had been assigned to the nephew that must be performed immediately. She
+had hastened to report this conversation in detail to Chief Fleck, but
+if he understood what it was about he had taken neither Jane nor Thomas
+Dean into his confidence.
+
+Other things, too, Jane had learned and reported, which she knew the
+chief appreciated even though he was sparing in his thanks and
+compliments. She had learned through her almost constant listening that
+Lieutenant Kramer was a regular visitor, coming to the Hoff apartment or
+seeing Frederic Hoff somewhere every other day. Unfortunately he was
+always conducted into one of the inner rooms, so that no more of the
+conversation than the ordinary greetings and farewells ever reached
+Jane's ears. The mere fact of his coming so regularly to the Hoffs
+convicted him of treachery, in Jane's mind. What proper business could
+an American naval officer have in the home of two German agents? The
+excuse that Frederic Hoff was a delightful and entertaining friend was
+entirely too flimsy and unsatisfactory.
+
+Nothing that she had overheard--and within her heart she felt glad that
+it was so--in any way as yet incriminated young Hoff. When she dared to
+think about it, she found herself almost believing, certainly at least
+wishing, that the nephew was not involved in his uncle's activities.
+Most of his time, in fact, was spent out of the apartment. He frequently
+went out early in the morning, not returning until the early hours of
+the next morning. The old man, on the contrary, always stayed at home
+until eleven o'clock. At that hour his telephone would ring. The
+telephone was located near the dining room, so Jane could easily hear
+his conversations. Invariably some brief message was given to him, a
+name, which he repeated aloud as if for verification.
+
+As Jane overheard them she had set them down:
+
+ Thursday--"Jones."
+ Friday--"Simpson."
+ Saturday--"Marks."
+ Sunday--"Heilwitz."
+ Monday--"Lilienthal."
+ Tuesday--"Wheeler."
+
+As she sat by the hour listening Jane kept pondering over these names.
+What could they mean? Were they, too, a code of some sort? Always, as
+soon as this word had come to him, old Hoff went out. Could they be, she
+wondered, passwords by which he gained access somewhere to government
+buildings or places where munitions were being made or shipped?
+
+Meanwhile her acquaintance with Frederic Hoff had been progressing
+rapidly. As she had suggested he had called on her and had been
+presented to her father, and on the next Saturday they had gone to a
+matine together. She had been eager to see what her father thought of
+him, for Mr. Strong, she knew, was regarded as a shrewd judge of men.
+
+"What does that young Hoff do who was here last night?" her father had
+asked at the breakfast table.
+
+"He's in the importing business with his uncle, I think," she had
+answered.
+
+"Where'd you meet him?"
+
+"He lives in the apartment next door. Lieutenant Kramer introduced him."
+
+"He's German, isn't he?"
+
+"Oh, no," said Jane, almost unconsciously rallying to defend him, "he
+was born in this country."
+
+"Well, it's a German name."
+
+"Don't you like him?"
+
+"He talks well," her father said, "and seems to be well-bred."
+
+It was with reluctance, too, that Jane admitted to herself that the
+better acquainted she became with Frederic Hoff the more fascinating she
+found his society. She was always expecting that by some word or action
+he would reveal to her his true character. At the matine she had waited
+anxiously to see what he would do when the orchestra played the
+national anthem. To her amazement he was on his feet almost among the
+first and remained standing in an attitude of the utmost respect until
+the last bar was completed. If he were only pretending the rle of a
+good American, he certainly was a wonderful actor. As her admiration for
+him increased and her interest in him grew she found that almost her
+only antidote was to try to keep thinking of his face as she had seen it
+the night that K-19--the other K-19--had been so mysteriously murdered.
+She kept wondering if Chief Fleck had made any further discoveries about
+the murder and resolved to ask him about it at the first opportunity.
+She therefore was delighted when on Tuesday, as she made her regular
+report by telephone, he asked if she could come to his office that
+afternoon with Dean to discuss some matters of importance. They found
+Carter already with the chief when they arrived.
+
+"Thanks to your work, Miss Strong, and to Dean's dictograph," said the
+chief, "we have made considerable progress. We have learned a lot more
+about the cipher messages."
+
+"You have learned it through me," cried Jane in amazement.
+
+"Yes," said the chief, smiling, "from that list of names you reported."
+
+"What were they, a cipher, a code?" questioned the girl breathlessly.
+
+"No, nothing like that. They are merely the names of various innocent
+and unsuspecting booksellers in various parts of the city."
+
+"How did you discover that?"
+
+"In the simplest and easiest way possible. I listed all the names you
+reported and studied them carefully, trying to find their common
+denominator. They were not in the same neighborhood, so it was not
+locality. They were not all German, so it was not racial. I looked them
+up in the telephone directory, checking up the numbers of the telephones
+of the Jones, the Simpsons, but that gave no clue. Then, as I looked
+through the telephone lists, I discovered that there was a bookstore
+kept by a man of each name. Then I understood. It is a simple plan for
+throwing off shadowers."
+
+"You mean that Mr. Hoff goes to a different bookstore each day to leave
+a code message?"
+
+"That's it. The spy who gets the messages each morning calls him up by
+'phone, mentioning just the one word. From that Mr. Hoff knows just
+where to go, concealing the message in a book before agreed upon."
+
+"The fifth book," interrupted Dean.
+
+"Not always," explained Fleck. "It depends on whether there are five
+letters in the name telephoned. I have located and copied several more
+of the messages."
+
+"But who gets the messages he leaves? Who takes them away from the
+bookshops?" asked Jane, mindful of her own failure in that respect.
+
+"It's a girl, or rather two girls together, though possibly only one of
+them is in the plot. Very likely the other may not know what her
+companion is doing."
+
+"To whom does this girl take them?"
+
+"That is still a mystery," said the chief. "We have ascertained who the
+girl is, where she lives. Her actions have been watched and recorded for
+every hour in the twenty-four for the last three days, and yet we don't
+know what she does with these messages. Carter has a theory--tell us
+about it, Carter."
+
+"In accordance with instructions," began Carter, as if he was making
+out a report, "I had operatives K-24 and K-11 shadow the party
+suspected. On two different occasions they followed her to a bookstore
+and back home again. She was accompanied on one occasion by her younger
+sister. Each time she went directly home and stopped there, neither she
+nor her sister coming out again, and no person visiting the
+apartment, but--"
+
+"Here's the interesting part," interrupted Fleck.
+
+"On both occasions within a couple of blocks of the bookstore she passed
+a man with a dachshund. She did not speak to the man, but each time she
+stopped to pet the dog."
+
+"Was it the same man both times?" asked Dean.
+
+"Apparently not," replied Carter, "but it may have been the same dog.
+Dachshunds all look alike."
+
+"Go on," said the chief.
+
+"Now my theory is that that girl was instructed to walk north until she
+met the man with the dog. I'll bet anything that code message went
+under the dog's collar. The next time she gets a message I'm going to
+get that dog."
+
+"It seems preposterous," scoffed Dean.
+
+"Rather it shows," said Fleck, "that these spies all suspect they are
+being watched, and that they resort to the most extraordinary methods of
+communication to throw off shadowers. They have used dachshunds before.
+There's a New England munition plant to which they used to send a
+messenger each week to learn how their plans for strikes and destruction
+were progressing. They put a different man on the job each time to avoid
+stirring up suspicion. At the station there would always be two children
+playing with a dachshund. The spy would simply follow them as if
+casually, and they would lead him to a rendezvous with the local
+plotters. Now, Miss Strong," he said, turning to Jane, "I brought you
+down here for two reasons. First, to give you an inkling of how
+important your task is, and second, to ask you to undertake still
+another task for us. Are you still willing to help?"
+
+"More than ever," said the girl firmly.
+
+"The one disappointment is that we are getting no evidence whatever to
+involve or incriminate young Hoff. To-morrow, while he and his uncle are
+away on their usual auto trip, I am going to have the apartment
+thoroughly searched."
+
+Jane's face blanched. She recalled what a strain it had been on her
+nerves the day she watched on the roof while Dean installed the
+dictograph. She felt hardly equal to the task of ransacking desks
+and drawers.
+
+"There will be no one at home but the old servant. She can be easily
+disposed of. It is imperative that the search be made at once. There is
+evidence that what they are planning--evidently some big coup--is
+nearing the time for its execution. We must find it out in order to
+thwart them. I have got to know what old Hoff meant by the
+'wonder-worker!' He said that it was nearly ready. I suspect that it is
+some new engine of destruction. We must prevent any disaster to
+transports or munition factories, if that's what they have in mind."
+
+"You think it's a bomb plot?" asked Jane.
+
+"I don't know what it is. These empire-mad fools stop at nothing.
+Nothing is sacred to them, women, children, property. With fanatical
+energy and ability they commit murders, resort to arson, use poisons,
+foment strikes, wreck buildings, blow up ships, do anything, attempt
+anything to serve the Kaiser. Karl Boy-ed spent three millions here in
+America in two months, and Von Papen a million more. What for? Ten
+thousand dollars to one man to start a bomb factory, twenty-five
+thousand dollars to another to blow up a tunnel. Millions on millions
+for German propaganda was raised right here, and it is far from all
+spent yet. We've got to find out what the wonder-worker is and destroy
+it before it destroys--God knows what."
+
+"Very well," said Jane with quiet determination, "I'll search their
+apartment."
+
+"No, not that," said the chief, "I'll send some fake inspectors to test
+the electric wiring, and they'll do the searching. I do not know for
+sure that the Hoffs suspect you of watching them, but I'm taking no
+chances. It will be just as well for you and Dean to be out of the way
+to-morrow all day, so that you will have an alibi. Germany's secret
+agents are suspicious of everybody. They do not even trust their own
+people. What I want you and Dean to do is to try to follow the Hoffs and
+see where they go. I don't want to use the same persons twice to trail
+them as they may get suspicious."
+
+"I can easily do that," said Jane, feeling relieved. "I'll tell Mother I
+want our car for all day."
+
+"No, don't use your own car. They might recognize it. I'll provide
+another one. They gave two of my men the slip last week somewhere the
+other side of Tarrytown. Let's hope they are not so successful
+this time."
+
+"But won't they recognize me?"
+
+"Not if you disguise yourself with goggles and a dust coat. Dean can
+make up, too. He had practice enough at college, eh, Dean?"
+
+Jane turned to look interestedly at Dean, who had the grace to color up.
+She was right then. He was a college man, working in the secret service
+not for the sake of the job but for the sake of his country.
+
+"Of course I can disguise myself too," she said enthusiastically, a new
+zest in her work asserting itself, now that she knew her principal
+co-operator was probably in the same social stratum as herself.
+
+"You can rely on us, Chief," said Dean, as they left the office
+together. "We'll run them down."
+
+As they emerged into Broadway and turned north to reach the subway at
+Fulton Street, Dean, with a warning "sst," suddenly caught Jane's arm
+and drew her to a shop window, where he appeared to be pointing out some
+goods displayed there. As he did so he whispered:
+
+"Don't say a word and don't turn around, but watch the people passing,
+in this mirror here--quick, now, look."
+
+Jane, as she was bidden, glanced, at first curiously and then in
+recognition and amazement, at a tall figure reflected in the mirror, as
+he passed close behind her. It was a man in uniform. Regardless of
+Dean's warning she turned abruptly to stare uncertainly at the military
+back now a few paces away.
+
+"Did you recognize him?" cried Dean.
+
+"It--it looked like Frederic Hoff," faltered the girl.
+
+"It was Frederic Hoff," corrected her companion, "Frederic Hoff in the
+uniform of a British officer, a British cavalry captain!"
+
+
+
+CHAPTER IX
+
+THE PURSUIT
+
+Masked by an enormous pair of motor goggles and further shielded from
+recognition by a cap drawn down almost over his nose, Thomas Dean in a
+basket-rigged motorcycle impatiently sat awaiting the arrival of Jane
+Strong at a corner they had agreed upon the evening before. He had been
+particularly insistent that Jane should be on hand at a quarter before
+eight. He had learned by judicious inquiries that always on
+Wednesdays--at least on the Wednesdays previous--the Hoffs had started
+off on their mysterious trips at eight sharp. His intention was to get
+away ahead of them and pick them up somewhere outside the city limits.
+
+Jane had promised that she would be on hand promptly. Once more he
+looked impatiently at his watch. It lacked just half a minute of the
+quarter, but there was no sign of his fellow operative. The only person
+visible in the block was a boy strolling carelessly in his direction.
+With a muttered exclamation of annoyance Dean restored his watch to his
+pocket, debating with himself how long he ought to wait and whether or
+not he had better wait if she did not appear soon. Very possibly, he
+realized, something entirely unforeseen might have detained her or have
+prevented her coming. Perhaps her family had doubted her story that she
+was going off on an all-day motor trip with a friend? Maybe their
+suspicions had been aroused by his having reported sick? He had almost
+decided to go on alone when he observed that the boy he had seen
+approaching was standing beside the motorcycle.
+
+"Good morning, Thomas," said the boy, a little doubtfully, as if not
+quite sure that it was he.
+
+Dean gasped in astonishment. The boy's voice was the voice of Jane.
+Laughing merrily at his amazement and discomfiture, she climbed into the
+seat beside him, asking:
+
+"How do you like my disguise?"
+
+"It's great," he cried. "You fooled me completely, and I was expecting
+you."
+
+"When Chief Fleck said I ought to disguise myself for fear that the
+Hoffs already suspected me, I happened to remember these clothes. I had
+them once for a play we gave in school."
+
+"But you don't even walk like a girl."
+
+Jane laughed again.
+
+"I practised that walk for days and days. When I first put on this suit
+my brother hooted at the way I walked. He said no girl ever could learn
+to walk like a boy. I made up my mind I'd show him."
+
+"But your hair," protested Dean, almost anxiously. Even if he was just
+now assuming the humble rle of chauffeur he still was an ardent admirer
+of such hair as Jane's, long, black and luxurious.
+
+"Tucked up under my cap," laughed the girl, "and for fear it might
+tumble down, I brought this along. It's what the sailor boys call a
+'beanie,' isn't it?"
+
+As she spoke she adjusted over her head a visorlike woolen cap that left
+only her face showing.
+
+"But your mother--didn't she wonder about your wearing those clothes?"
+
+"She was in bed when I left. All she caught was just a glimpse of me in
+Dad's dust coat, and that came to my ankles. I wore it until I was a
+block away from the house. Will I do?"
+
+"You can't change your eyes," said Dean boldly, that is boldly for a
+chauffeur, but he knew that Jane knew he wasn't a chauffeur except by
+choice, so that made it all right.
+
+"I couldn't well leave them behind. I understood that I was to have a
+lot of use for my eyes to-day."
+
+"Yes, indeed, you very likely will."
+
+"Do you know I hardly recognized you at first and was almost afraid to
+speak? I had expected to find you in a car. What was the idea of the
+motorcycle?"
+
+"It was Chief Fleck's suggestion. The Hoffs will be motoring. People in
+a car seldom pay any attention to motorcyclists. If we were to follow
+them in a motor they'd surely notice it. Last week they managed to dodge
+the people the Chief assigned to trail them. Maybe as two dusty
+motorcyclists we'll have better luck."
+
+"I hope so. Where do you intend waiting to pick them up?"
+
+"Getty Square in Yonkers is the best place. Everybody going north goes
+that way. I can be tinkering with the machine while you keep watch for
+them. They will not be apt to suspect a pair of Yonkers motorcyclists.
+There's no danger of missing them."
+
+"Did you tell the Chief about seeing Mr. Hoff in that uniform?"
+
+"Of course. He did not seem even surprised. Some one had reported to him
+already that there was a German going about in British uniform."
+
+"What had he heard? What was the man doing?" questioned Jane anxiously.
+Even though she believed Frederic Hoff an alien enemy, even though she
+was all but sure that he was a murderer, she kept finding herself always
+hoping for something in his favor. He seemed far too nice and
+entertaining to be engaged in any nefarious, underhanded, despicable
+machinations. Yet she had seen him masquerading as a British officer.
+She could not doubt the evidence of her own eyes.
+
+"What happened was this," continued Dean. "A woman--one of the society
+lot--was driving down Park Avenue day before yesterday morning in her
+motor. It had been raining, and the streets were muddy. At one of the
+crossings a British officer stopped to let the car pass. One of the
+wheels hit a rut, and his uniform was all splashed with mud. He burst
+into a string of curses--_German_ curses."
+
+"He cursed in German?" cried Jane.
+
+"Sure," said Dean. "On the impulse of the moment he forgot his rle and
+revealed his true self--an arrogant Prussian officer."
+
+"What did the woman do?"
+
+"Reported him to the first policeman she met, but by that time he had
+vanished, of course."
+
+"What did Chief Fleck think about it?"
+
+"He didn't seem to take the story seriously."
+
+"Do you suppose it could have been Mr. Hoff?"
+
+"It must have been he, or one of his gang, at any rate. I don't see why
+the Chief does not order his arrest at once. He is far too dangerous to
+be at large."
+
+"There's no real evidence against him yet," protested Jane, "not against
+the young man, at least."
+
+"Didn't we both see him in British uniform?"
+
+"Yes," admitted the girl.
+
+"Well, that's proof, isn't it? A man with a German name in British
+uniform in wartime can't be up to any good."
+
+"Still we have no actual evidence against him. We don't know what he was
+doing."
+
+"I'd arrest him then for murder and get the evidence that he is a spy
+afterward. It would be easy to fasten the murder of K-19 on him. There's
+no doubt that he did that."
+
+"Has a witness been found?" asked Jane with a quick catch of the breath.
+Somehow she never had been able to persuade herself that the man next
+door, whatever else he might be, had really committed that
+brutal murder.
+
+"No, there's no actual witness, but it could be proved by circumstantial
+evidence. K-19, the man whose work you took up, had instructions to
+shadow young Hoff to his home. At two in the morning he relieved another
+operative. At three you yourself saw him shadowing Hoff."
+
+"I saw two men on the sidewalk," corrected Jane. "One of them was
+Frederic Hoff. I did not see the other distinctly enough to identify
+him. I saw no murder. I merely saw the two of them run around
+the corner."
+
+"Look here," said Dean sharply, not wholly succeeding in suppressing a
+note of jealousy in his tones, "I believe you are trying to shield
+Frederic Hoff. What is he to you? Has he won you over to his side?"
+
+"You've no right to say such things to me," cried Jane, nevertheless
+coloring furiously. "I've seen the man only three or four times. I am
+working just as hard as you are to prove that he is a German spy, if he
+is one. I am only trying to be fair. I know nothing that convicts him of
+murder. Any testimony I could give would not prove a single thing."
+
+"Certainly not, if that's the way you feel about it," snapped Dean.
+
+After that they rode along together in silence, each busy with thoughts
+of their own. Dean was cursing himself for having let his enthusiasm to
+be of service to his government lead him into such circumstances. He
+felt that his chauffeur's position handicapped him in his relations with
+Jane, to whom he had been strongly attracted from the beginning. The son
+of a distinguished American diplomat, he had been educated for the most
+part in Europe. Friends of his father, when he had offered his services
+to the government, had convinced him that his knowledge of German and
+French would make him most useful in the secret service. Reluctantly he
+had consented to take up the work, and as he had gone further and
+further into it and had realized the vast machinery for surreptitious
+observation and dangerous activity that the German agents had secretly
+planted in the United States, he had become fascinated with his
+occupation--that is, until he met Jane Strong.
+
+His association with her under present circumstances was fast becoming
+unbearable. Even though he was aware that she knew he was no ordinary
+chauffeur, he loathed the necessity of having to wear his mask in the
+presence of her family. He wanted to be free to come to see her, to send
+her flowers and to go about with her. For him to take any advantage of
+their present intimate relations to court her seemed to him little short
+of a betrayal of his government, yet at times it was all he could do to
+keep from telling her that he adored her. Love's sharp instincts, too,
+had made him realize that Jane was already beginning to be attracted by
+the handsome young German whom they were seeking to entrap, and the
+knowledge of this fact filled him with helpless rage and jealousy.
+
+Jane, too, angered and insulted at first by Dean's outburst, had been
+endeavoring to analyze her own conduct. Candor reluctantly compelled her
+to admit that each time she met Frederic Hoff she had found herself
+coming more and more under his spell. He had a wonderful personality,
+talked entertainingly and ever exhibited an innate gallantry toward
+women in general, and herself in particular, which Jane had found
+delightfully interesting. Though she had undertaken wholeheartedly to
+try to get evidence against him, she was forced to admit to herself now
+that she was secretly delighted that there had been nothing damaging
+found as yet, so far as he was concerned, beyond the one fact that he
+had been in British uniform.
+
+In vain she marshalled the circumstances about him, trying to make
+herself hate him. He was a German, she told herself. He was an enemy of
+her country. He lived with a man who had been proved to be a spy. He
+surreptitiously associated with American naval officers. The dictograph
+told her that nightly his uncle and he in the seclusion of their home
+toasted America's arch enemy, the German Kaiser. More than likely, too,
+her reason told her, he was a murderer. She ought to hate, to loathe, to
+despise him, and yet she didn't. She liked him. Whenever he approached
+she could feel her heart beating faster. She looked forward after each
+meeting with him to the time when she would see him again. What, she
+wondered, could be the matter with her? Assuredly she was a good
+patriotic American girl. Why couldn't she hate Frederic Hoff as she knew
+he ought to be hated?
+
+She was still puzzling over her unruly heart when they reached Getty
+Square, and Dean brought the motorcycle to a stop in one of the side
+streets overlooking Broadway. Dismounting, he looked at his watch and
+made a pretense of tinkering with the engine, while Jane kept a sharp
+lookout on the main thoroughfare, by which they expected the Hoffs to
+approach. Ten minutes, twenty minutes, more than half an hour they
+waited, anxiously scanning each car as it passed.
+
+"I can't understand it," said Dean. "They should have been here at least
+twenty minutes ago. I am going to 'phone Carter. He will know what time
+they started."
+
+He had hardly entered an adjacent shop before Jane, still keeping watch,
+saw the Hoffs' car flash by, going rapidly north. Quickly she sprang out
+and ran into the store. Dean saw her coming and left the telephone
+booth, his finger on his lips in a warning gesture.
+
+"Don't bother to 'phone," cried the girl, misunderstanding his
+meaning--and thinking only that he was trying to prevent her naming the
+Hoffs. "Come, let's get started."
+
+Without speaking he hurried from the store and got the motorcycle under
+way.
+
+"Have they passed?" he whispered then.
+
+"Just a moment ago."
+
+Silently he gathered up speed, racing in the direction the Hoffs' car
+had gone, not addressing her again until perhaps two miles from Getty
+Square they caught up with it close enough to identify the occupants,
+whereupon he slowed down and followed at a more discreet interval.
+
+"Be careful about speaking to me when there's any one about," he warned
+Jane, almost crossly. "Those clothes make you look like a boy, and your
+walk is all right, but your voice gives you away. Did you see that clerk
+in the store look at you when you spoke to me? I tried to warn you to
+say nothing."
+
+"I'll be careful hereafter," said Jane humbly, still depressed by her
+recent estimate of herself. "I forgot about my voice."
+
+Mile after mile they kept up the pursuit without further exchange of
+conversation. As they passed through various towns along the road Dean
+purposely lagged behind for fear of attracting attention, but always on
+the outskirts he raced until he caught up close enough again to the car
+to identify it, then let his motorcycle lag back again. Thus far the
+Hoffs had given no indication of any intention to leave the main road.
+
+As the cyclists, far behind, came down a long winding hill on which they
+had managed to catch occasional glimpses of their quarry, Dean, with a
+muttered exclamation, put on a sudden burst of speed. At a rise in the
+road he had seen the Hoffs' car swing sharply to the left. Furiously he
+negotiated the rest of the hill, arriving at the base just in time to
+see them boarding a little ferry the other side of the railroad tracks.
+While he and Jane were still five hundred yards away the ferryboat, with
+a warning toot, slipped slowly out into the Hudson.
+
+In blank despair they turned to face each other. The situation seemed
+hopeless. They dared not shout or try to detain the boat. That surely
+would betray to the Hoffs that they were being followed. Despondently
+Dean clambered off the motorcycle and crossed to read a placard on the
+ferryhouse.
+
+"There's not another boat for half an hour," he said when he returned.
+"They have gained that much on us."
+
+"Perhaps we can pick up their trail on the other side of the river,"
+suggested Jane. "There are not nearly so many cars passing as there
+would be in the city."
+
+"We can only try," said Dean gloomily.
+
+"At least we know where to pick up their trail the next time."
+
+"Damn them," cried Dean, "I believe they suspect that they may be
+followed and time their arrival here so as to be the last aboard the
+ferryboat. That shuts off pursuit effectually. They make this trip every
+week. I wouldn't be surprised if they have not fixed it with the ferry
+people to pull out as soon as they arrive. A two-dollar bill might do
+the trick. I'd give five thousand right now if we were on the other side
+of the river. It's the first time--the only time I've ever failed
+the Chief."
+
+"Never mind," said Jane consolingly, "why can't we be waiting for them
+at the other side next week when they come up here? They're not apt to
+suspect motorcyclists they meet up here with having followed them."
+
+"Perhaps next week will be too late."
+
+"I wonder where they are headed for," said the girl, looking across at
+the rapidly receding boat. "Why, look! What are those buildings
+over there?"
+
+"That's West Point," Dean exclaimed, noting for the first time where
+they were.
+
+"West Point!" she echoed in amazement.
+
+What mission could the Hoffs have that would take them to the United
+States Government military school was the question that perplexed them
+both. Could it be that the web of treachery and destruction the Kaiser's
+busy agents were weaving had its deadly strands fastened even here--at
+West Point?
+
+
+
+CHAPTER X
+
+CARTER'S DISCOVERY
+
+"It's the young man I'm after," said Chief Fleck. "We have the goods on
+old Hoff, but we have nothing incriminating against Frederic yet. The
+very fact that he holds aloof from his uncle's activities makes me think
+he is engaged in more important work. He's just the type the Germans
+would select as a director."
+
+"That's right," said Carter despondently. "There's nothing except the
+fact that Dean and the girl think they saw him in British uniform. Why
+didn't they follow and make sure?"
+
+"They tried to," said the chief, "but he gave them the slip. I'm
+inclined to believe they were mistaken. More than likely it was a chance
+resemblance. Lots of Britishers of the Anglo-Saxon strain look much like
+Germans, and a uniform makes a big difference in a man's appearance. I'm
+afraid there's nothing in that."
+
+"But both saw the man--Dean and Miss Strong," protested Carter.
+
+"The trouble is," observed Fleck, "that Dean is getting infatuated with
+the girl. A young man in love is not a keen observer. Anything she
+thinks she has seen he'll be ready to swear to. I hope the girl keeps
+her head. Lovers don't make good detectives."
+
+"I have watched them together," said Carter. "I'll admit he's struck on
+her, but I don't think she cares a rap for him. She's too keenly
+interested in Frederic Hoff."
+
+"What do you mean by that?" asked the chief sharply.
+
+"You can depend on her all right. She's patriotic through and through.
+She's the kind that would do her duty, no matter what it cost her. All I
+meant is that Hoff's the type that interests women. He's got a way about
+him. The fact that he's a spy, in peril most of the time, gives him a
+sort of halo. I never knew a daring young criminal yet that didn't have
+some woman, and often several of them, ready to go the limit for him.
+All the same, I'm sure we can trust Miss Strong."
+
+"We've got to," growled Fleck, "for the present at any rate. Is
+everything fixed for the search this afternoon? What have you done to
+get the superintendent out of the way? He's not to be trusted. His name
+is Hauser."
+
+"I've got him fixed. Jimmy Golden, my nephew, who has helped us in a
+couple of cases, is a lawyer. He has telephoned to Hauser to come to his
+office this afternoon."
+
+"Suppose he doesn't go?"
+
+"He'll go all right. Jimmy 'phoned him that it was about a legacy.
+That's sure bait. Jimmy will make Hauser wait an hour, then keep him
+talking half an hour longer. That will give us plenty of time."
+
+"Then there's the woman--the servant, Lena Kraus."
+
+"She goes to the roof every Wednesday while the Hoffs are away to
+signal. Other days they apparently do the signalling themselves in some
+way we haven't caught on to yet. She always goes up about three
+o'clock and--"
+
+"Suppose she comes down unexpectedly and catches you? We can't have that
+happen. That would put them on their guard."
+
+"She won't surprise us. I've got a trick up my sleeve for preventing
+that."
+
+"Go to it, then," said the chief, and Carter went on his way rejoicing.
+
+Ever since he had been informed that the search of the Hoffs' apartment
+was to be intrusted to him Carter had been in a state of exuberant
+delight. He fairly revelled in jobs that required a disguise and he
+welcomed the opportunity it gave him and his assistants to don the
+uniform of employees of the electric light company. He even made a point
+of arriving that afternoon at the apartment house in the company's
+repair wagon, the vehicle having been procured through Fleck's
+assistance.
+
+"There's a dangerous short circuit somewhere in the house," he announced
+to the superintendent's wife.
+
+"My husband isn't here," she answered unsuspectingly. "Do you know where
+the switch-boards are?"
+
+"We can find them," said Carter. "We'll start at the top floor and work
+down."
+
+Always thorough in his methods of camouflage he actually did go through
+several apartments, making a pretense of inspecting switch-boards and
+wiring, all the while keeping watch for the time when old Lena went to
+the roof. The moment she had entered the elevator to ascend with her
+basket of linen, Carter and his aides were at the Hoff door. Equipped
+with the key Dean had manufactured they had no difficulty in entering.
+
+"Bob," said Carter to one of his men, "we haven't much time, and there's
+a lot to be done. You take the servant's room and the kitchen, and you,
+Williams, take the old man's quarters. I'll take care of the young man's
+bedroom, and we'll tackle the living room and dining room later."
+
+Thoroughly experienced in this sort of work all three of them set at
+once to their tasks. Carter, standing for a moment in the doorway,
+surveyed Frederic Hoff's quarters, taking in all the details of the
+furnishings. Both the sitting room and the bedroom adjoining were
+equipped in military simplicity, with hardly an extra article of
+furniture or adornment, chairs, tables, everything of the plainest sort.
+Moving first into the bedroom, Carter quickly investigated pillows and
+mattress, but in neither place did he find what he sought, evidence of a
+secret hiding place. He rummaged for a while through the drawers of two
+tables, carefully restoring the contents, but discovering nothing that
+aroused his suspicions. The books lying about on the tables and on
+shelves he examined one by one, noting their titles, examining their
+bindings for hidden pockets, holding them up by their backs and shaking
+the leaves. There was nothing there. Lifting the rugs and moving the
+furniture about he made a careful survey of the flooring, seeking to
+find some panel that might conceal a hiding place. Once or twice in
+corners he went so far as to make soundings but apparently the whole
+floor was intact. His search in the bath room was equally profitless,
+and at last he turned to the clothes press. As he opened the door an
+exclamation of amazement burst from his lips.
+
+There, concealed behind some other suits, was the complete outfit of a
+British cavalry captain.
+
+"That's one on the Chief," he said to himself. "It must have been Hoff
+that Dean and Miss Strong saw. I wonder where he got it?"
+
+With a grim smile of satisfaction he devoted himself to going carefully
+through all the pockets and over all the seams of the clothing in the
+closet. He even felt into the toe of the shoes and examined the soles.
+There was nothing to be found anywhere, but he felt satisfied. The
+uniform in itself was to his mind damning proof of the young man's
+occupation.
+
+No explanation that could be given by a young man of German name, even
+though he was American-born, or had an American birth certificate, could
+possibly account for his having a British uniform. It was prima facie
+evidence that Frederic Hoff was a spy. What puzzled Carter most was how
+Hoff managed to smuggle the uniform in and out of the apartment without
+being observed. For more than two weeks now every parcel that had
+arrived at the house of the Hoffs had been searched before it was
+delivered. The house had been constantly under the strictest
+surveillance. It was out of the question for him to have worn the
+uniform in or out as it could not be easily concealed under
+other clothing.
+
+"There's somebody else in this place in league with the Hoffs," he
+muttered to himself. "I wonder who it can be."
+
+He looked at his watch. The old servant had been out now nearly half an
+hour. She was likely to return at any moment. He must work quickly.
+Swiftly he went through the dresser drawers but without satisfactory
+result. There was no time for him to do more. He hastened into the
+living room and summoned his aides.
+
+"Find anything, Bob?" he asked.
+
+"Not a thing."
+
+"Beat it up to the roof," he directed. "Have you those field glasses
+with you?"
+
+"Sure," replied the operative, "and the handkerchiefs, too."
+
+"All right. Get up there before she starts down. Begin putting up
+handkerchiefs and appear to be watching the river. That will mix her up
+so she will not know what to do. She will not dare to leave the roof
+while you are there. When we're through I'll send the elevator man up
+for you with the message that we have found the short circuit."
+
+He turned to the other operative.
+
+"Find anything, Williams?"
+
+"Only this."
+
+Carter's face brightened as his assistant held out to him two copies of
+an afternoon newspaper. In each of them a square was missing where
+something had been cut out.
+
+"I found them in the waste-paper basket by the old man's desk," the man
+explained, "and there was some ashes there--ashes of paper--as if he had
+burned up something. Maybe it was what he cut out of those papers. I
+could not tell."
+
+"We've got to get copies of those papers at once and see what it was.
+Come on, I'm going to take them to the Chief. We can get the papers on
+the way down."
+
+Calling the other operative from the roof, before he even had had time
+to attract the attention of Lena Kraus by his activities, they hastened
+back to the office, where Fleck and Carter together scanned the two
+papers from which the clippings had been taken.
+
+"Why," said Carter disappointedly, "it is just a couple of
+advertisements he cut out--advertisements for a tooth paste. There's
+nothing in that."
+
+"Don't be too sure," warned Fleck. "If a man cuts out one tooth-paste
+advertisement, the natural presumption would be that he wished to
+remind himself to buy some. When he cuts out two, he must have some
+special interest in that particular tooth paste. We'll have to find out
+what his interest is."
+
+"Maybe he owns it," suggested Carter.
+
+"Perhaps," said Fleck, as he began studying the advertisements, "but it
+would not surprise me if these advertisements contained some sort of
+code messages."
+
+"Messages in advertisements," exclaimed Carter incredulously.
+
+"Why not? The Germans have hundreds of spies at work here in this city
+and all over the country. What would be an easier method of
+communicating orders to them than by code messages concealed in
+advertising. They have done it before. When the German armies got into
+France they found their way placarded in advance with much useful
+information in harmless looking posters advertising a certain brand of
+chocolate. I'd be willing to bet that every one of these advertisements
+carries a code message. I've noticed that these advertisements, all
+peculiarly worded, have been running for some time. I never thought of
+hooking them up with German propaganda, but, see, it is a German firm
+that inserts them."
+
+Carefully he cut out the two advertisements and laid them side by side
+on his desk. Turning to Carter he said:
+
+"Go at once to see Mr. Sprague, the publisher of this paper. Get him to
+give you a copy of each paper that has contained an advertisement of
+this sort in the last six months. Find out what agency places the
+advertising. Tell him I want to know. He'll understand. We have worked
+together before."
+
+Alone in his office, Fleck bent with wrinkled brow over the first of the
+two advertisements, which read:
+
+ REMEMBER
+
+ Please, that our new paste, DENTO,
+ will stop decay of your teeth. Sound
+ teeth are passports to good health and
+ comfort. Now, no business man can
+ risk ill health. It is closely allied with
+ failure. The teeth if not watched are
+ quickly gone.
+
+ USE DENTO
+
+ A genuine, safe, pleasing paste for the
+ teeth, prepared and sold only by the
+ Auer Dental Company, New York.
+
+He tried all the methods of solving cipher letters that he thought of.
+He drew diagonals this way and that across the advertisement. He tried
+reading it backward. He tried reading every other word, every third
+word, both backward and forward. Nothing that he did revealed any
+combination of words that made sense.
+
+"Passports," he muttered to himself, "that's it. If there is a message
+there it must be something about passports."
+
+In despair he turned to the other advertisement. It read:
+
+ DON'T
+
+ Forget it is imperative for one and all to
+ use cleansing agents on teeth that leave
+ no bad results.
+
+ "Ship more of that wonder-working
+ paste immediately. Workers, employers,
+ wives, all ready to commend it. Friday's
+ supply gone," writes a druggist to whom
+ a big shipment was made last week.
+
+ USE DENTO
+
+ A genuine, safe, pleasing paste for the
+ teeth, prepared and sold only by the
+ Auer Dental Company, New York.
+
+Fleck's eyes gleamed with satisfaction as he read this advertisement
+and caught the phrase "wonder-working." He felt sure now that he was on
+the right track. He recalled that Jane Strong over the dictograph had
+heard old Hoff speak of something that he called the "wonder-worker." As
+soon as Carter returned with the other advertisements that had been
+appearing he felt positive that he would be able to unravel the cipher.
+Two words he was sure of--"passports" and "wonder-working." One
+footprint does not lead anywhere, but two do, and given three
+footprints, a pathway is indicated.
+
+His telephone rang sharply. He turned to answer it, suspecting it must
+be Carter with some message about the papers he had sent for.
+
+"Hello," he called.
+
+"Hello," came a faint voice, as if the speaker were using long distance,
+and had a bad connection, "is this Fleck?"
+
+"Yes, Fleck," he answered, "who is this?"
+
+"Dean speaking," came the voice faintly.
+
+"Dean," cried Fleck, excitedly, "yes, yes. What is it, Dean?"
+
+He had not expected to hear any results from the expedition that Dean
+and Jane Strong had undertaken until late in the afternoon after the
+Hoffs returned. The fact that Dean was calling him up now would seem to
+indicate that something of importance had happened.
+
+"I'm telephoning from a doctor's house near Nyack," said Dean.
+
+"What's that? Speak louder."
+
+"I'm here in Doctor Spencer's office near Nyack with a broken arm," Dean
+continued. "We've had an accident. Somebody's auto smashed into us,
+I guess."
+
+"Miss Strong? Where is she? Is she hurt?" asked the chief anxiously.
+
+"I don't know. She has vanished."
+
+Jane Strong vanished! The chief's figure became suddenly tensed. That it
+was more than a mere automobile accident he felt certain now. Shadowing
+the Hoffs was an occupation that seemed unusually perilous. There
+flashed into his mind the fate of K-19--murdered almost at the Hoffs'
+door. And now two more of his operatives, one disabled and the other
+mysteriously missing.
+
+"Quick," he said over the 'phone. "Tell me briefly just what happened.
+Speak as loudly as you can."
+
+"We got half an hour behind at the West Point Ferry," Dean's voice went
+on, still weak and low as if he were speaking with difficulty. "We had
+some trouble getting started on the trail again but finally succeeded.
+We were dashing along about ten or twelve miles south of West Point when
+an automobile coming out of a cross road crashed right into us. It must
+have knocked me unconscious. I didn't remember anything more till I
+found myself here. I came to as the doctor was setting my arm. I 'phoned
+as soon as they would let me."
+
+"Who brought you there?"
+
+"I don't know. All they know here was that some couple in an automobile
+left me here. They said they passed just after an auto hit my
+motorcycle. They said the auto didn't stop."
+
+"And Miss Strong--did they say anything about her?"
+
+"Not a word. The people here were under the impression I was riding
+alone."
+
+"All right," said the chief. "I'll get some one up there at once to
+look after you and pick up any clues."
+
+As he hung up the 'phone, his forehead wrinkled into little lines of
+absorbed concentration. He sat at his desk for fully five minutes almost
+motionless, trying to figure it out. What did the accident to Dean
+signify? How was the sudden disappearance of Jane Strong to be accounted
+for? Had she fled from the scene after Dean was disabled, fearing that
+her name might be coupled with his in an account of the accident? It did
+not seem like the sort of thing she would do. The impression she had
+made on him was that of a girl of high resolve who would be apt to carry
+through anything she undertook, cost what it may. Yet what could have
+happened to her? If she, too, had been injured, why was she not with
+Dean? If she was not injured, why had she not communicated with the
+office? Who were the couple that had brought Dean to the doctor's
+office? Why had not the doctor taken their names and addresses?
+
+What part had the Hoffs played in the accident? Had they purposely run
+down the motorcycle? If they had found out they were being shadowed
+they would not have hesitated, he felt sure, to resort to such murderous
+tactics. Had they not already one dastardly murder to their record? He
+must find out when the Hoffs arrived home. They would not be due for an
+hour or two, but he would caution the operatives watching the house to
+keep more vigilant watch. Reaching for his 'phone he called up the
+head-quarters of the operatives.
+
+"Report to me at once," he said to the operative who answered his call,
+"the minute the Hoffs have arrived home."
+
+"The old man is home now," the operative answered.
+
+"What's that?" cried Fleck.
+
+"He came in alone five minutes ago on foot. The young man is not home
+yet with the automobile."
+
+"Let me know as soon as he arrives," said Fleck curtly, turning away
+from the 'phone.
+
+He was more perplexed than ever. What could have happened? Where was
+young Hoff with the motor? Where was Jane Strong? Why had she
+disappeared after Dean had been hurt? How had she vanished? The Hoffs'
+affairs had assuredly taken a new and bothersome turn, over which Fleck
+sat puzzling many minutes.
+
+Where was Jane Strong? In the answer to that question, he decided at
+length, lay the crux of the whole situation.
+
+
+
+CHAPTER XI
+
+JANE'S ADVENTURE
+
+For more than two hours Thomas Dean and Jane had been vainly circling
+about West Point on their motorcycle, striving to pick up some clue that
+would put them once more on the trail of the Hoffs' car. They had not
+dared to ask too many questions of any one near the ferry, fearful lest
+the people they were pursuing might have a guard posted there to warn
+them in case of a possible pursuit, yet cautious inquiries seemed to
+indicate that all the automobiles on the ferryboat which had preceded
+had been headed to the north.
+
+"There's only one thing we can do," Dean had said despondently. "We have
+got to run out each road we come to until we reach some shop or garage
+where the people would be likely to have noticed the Hoffs. They may
+have stopped somewhere, or we may meet some one coming toward us who
+will remember having passed them."
+
+"It seems like a wild-goose chase," said Jane, "but I suppose there is
+nothing else to do."
+
+The strain of their bitter disappointment was telling on both of them.
+Each felt inclined to blame the other for their having fallen so far
+behind. They rode along in silence, their nerves becoming more and more
+keyed up as their hopes grew less. At garage after garage they paused to
+question the employees.
+
+"Did a big gray car with two men, an old man with a beard and a young
+man driving, pass this way about an hour ago?"
+
+"I don't remember any such car," was the invariable answer.
+
+Time and time again they repeated their query, wording it always the
+same, except for lengthening the interval of time in which the car might
+have passed, for the afternoon was rapidly passing. In their circuit
+they had now reached the roads pointing to the southward.
+
+"We'll try this one more garage," said Dean, as they approached a
+wayside shed bearing a large sign "Gasoline."
+
+"I fear it is only wasting time," said Jane wearily.
+
+"Don't you want the Hoffs caught?" snapped her companion.
+
+"Of course I do," she retorted heatedly, "but I don't see you catching
+them."
+
+"I believe you are half glad of it," snarled her escort as he brought
+the machine to a stop and repeated his usual question.
+
+"Sure there was a car with two men in it like you describe passed here,"
+the man replied to their amazement and delight. "They stopped here for
+gas, as they generally do. About three hours ago, I guess it
+musta been."
+
+Dean shot a triumphant glance at Jane.
+
+"An old man with a gray beard and a smooth-shaven young man
+driving--does that describe them?" he repeated.
+
+"That's them," said the garage proprietor. "They come through here every
+few days, always about the same time."
+
+"Where do they go?" questioned Dean eagerly, feeling at last that the
+scent was growing hot.
+
+The man shook his head in a puzzled way.
+
+"I've often wondered about that. They're always heading south and
+appear to be in a powerful hurry, but the funny part of it is I ain't
+never seen them coming back."
+
+"Do you know their names?"
+
+"No, I can't say I do, though it seems as if I'd heard one of them
+called Fred. I can't say which it was."
+
+"Do they always come by on the same day--on Wednesday?" asked Jane,
+forgetful once more of Dean's warning to let him do the talking lest her
+voice should betray her sex.
+
+"Come to think of it," said the man, apparently noticing nothing
+unusual, "I guess it always is on a Wednesday they come by."
+
+"Is the number of their car anything like this?" asked Dean, exhibiting
+an entry in his notebook.
+
+"I couldn't say," said the man, studying the figures. "I know it is a
+New York license, and the number ends with two nines like this one does.
+What might you be wanting them for?"
+
+He spoke to a cloud of dust, for Dean had started up the motorcycle
+before he finished speaking and already was speeding away.
+
+"Where now?" asked Jane.
+
+"I don't know," he answered frankly, "I only know we are going the
+direction the Hoffs went, and I want to gain on them before they get too
+far ahead. The chap back there had told us all he knew and was beginning
+to get curious, so I thought it better to vamoose."
+
+"It's funny about his never seeing them coming back."
+
+"Probably there is nothing mysterious about that. I have a notion they
+always come up one side the river and down the other, taking the 125th
+Street ferry home. That would not be a bad plan to help them in eluding
+too curious observers. All these German spies are trained to leave as
+blind a trail behind them as possible. The thing we have got to discover
+is what brought them up here. We've just got to find out their
+destination."
+
+"I am afraid there is little chance of our doing that," insisted Jane.
+"We've nothing to go on."
+
+"We've learned something. We know that their destination is somewhere
+between here and Fort Lee on this side of the river. That narrows down
+the search considerably. That's more, too, than anybody else that the
+Chief has had on their trail has learned. Something tells me that we are
+getting warm right now. Obviously the place they come to must be nearer
+West Point than it is New York. They would hardly take too roundabout a
+course, even for the sake of hiding their tracks. Keep a sharp lookout
+for tire tracks leaving the main road."
+
+The route they were following quickly led them into a sparsely inhabited
+mountainous district and instead of the concreted state highway they
+found themselves on a hilly dirt road, full of ruts and loose stones
+that made travel difficult. At times it was all Dean could do to manage
+the machine, so that he had to leave most of the task of observing the
+by-ways to Jane. For more than two miles they had seen neither house nor
+barn. Once or twice they came upon little used lanes leading off through
+the woods, but none of them showed any traces of the recent passing of
+an automobile.
+
+As they came dashing around a curve on a steep down-grade, where hardly
+more than the semblance of a road had been cut into the hillside, Jane
+caught her breath sharply. Above the roar of their own motor she thought
+she heard some other noise, something that sounded like another car
+near-by; yet neither behind nor ahead was there another automobile
+in sight.
+
+"Listen," she cried sharply.
+
+Dean started to slow down, but it was too late. Out of a cut in the
+hillside, half screened by a clump of bushes at the side on which Jane
+was riding, a great gray motor shot out just as they were passing. Jane
+caught just one glimpse of the man on the driver's seat. It was Frederic
+Hoff, frantically twisting at the wheel in an effort to avert the
+threatened collision. There came a thud and a crash as the forward part
+of the Hoff car struck the motorcycle a glancing blow, overturning it
+completely. Too terrified even to shriek, Jane felt herself being
+catapulted out of her seat and flung high in air. Then came a blank.
+
+Her companion did not escape so easily. The heavy machine crashed over
+on him and dragged him several yards. His head, as he landed in the
+roadway, struck a stone, and the motorcycle itself pinned him to the
+earth by its weight, one of his arms doubled up in an alarming fashion,
+as he lay there completely senseless.
+
+Jane fortunately had landed on some soft grass, though with sufficient
+force to leave her badly stunned. As she lay there, a boyish figure in
+her disguise, her senses began gradually to revive, although it was some
+time before she opened her eyes.
+
+Vaguely, as from a great distance, she began to hear voices, and it
+seemed to her that they were German voices, arguing about something. The
+voices seemed angry and excited. At first she did not bother about them.
+She was wondering how badly she was hurt. Her arms and limbs had a
+curious sort of deadness about them, a detached sensation, as if they
+belonged to some one else. She wondered if she was paralyzed and dared
+not try to move them, fearful lest she might find that it was the
+terrible truth.
+
+The voices--the German voices--came nearer, became louder and more
+strident. She struggled to collect her thoughts. Where was she? What had
+happened? Where was Thomas Dean? Gradually some memory of the accident
+came to her. They had been run down by the Hoffs' car. The voices she
+kept hearing were those of the two Hoffs, angrily wrangling about
+something. As she revived further she became acutely conscious that her
+head seemed to be splitting. What was it the Hoffs were arguing about?
+Still lying there motionless, with her eyes closed, endeavoring to
+collect herself, she tried to listen to what they were saying.
+
+"I tell you there is not time. I must hurry. Every minute is precious. I
+cannot delay my work for these swine, no matter if they both are dying
+or dead," old Otto was angrily shouting with many German oaths.
+
+"I tell you," Frederic was saying,--his voice was calmer but
+determined,--"we've got to get these people to a doctor. It's too
+heartless. I will not leave them here."
+
+"And betray us at the last moment, when our plans are all ready,"
+snarled old Otto.
+
+"There is less danger if we bundle them into the car and take them with
+us than if we leave them here," protested Frederic. "Two bodies right
+here at the entrance would be fine, _nicht wahr?_"
+
+His last remark appealed to old Otto.
+
+"That is so," he muttered. "It is not safe. We must hide the bodies,
+both of them, yes?"
+
+The bodies! Jane decided that Dean must have been killed and that they
+thought that she, too, was dead. As she strove to open her eyes she
+could hear Frederic protesting.
+
+"It's inhuman," he cried. "They both are hurt, but perhaps still alive.
+We must take them to a hospital."
+
+"And endanger all our plans," stormed old Otto. "Throw them into the
+woods."
+
+"We'll do nothing of the sort," Frederic insisted, his voice becoming
+unusually stern and severe. "I'm going to get both of these people to a
+doctor at once, I tell you."
+
+With effort Jane opened her eyes and looked cautiously about. Where was
+Thomas Dean? How badly had he been hurt? The Hoffs' automobile was
+slowly backing up. As she looked old Otto sprang out of it and righted
+the motorcycle. As he did so Jane saw the body of Dean lying senseless
+beneath it, but to him the old German paid no attention. He was
+examining the motorcycle and still sputtering that the swine should be
+left to rot.
+
+"We are going to take them with us in the car," directed Frederic in a
+voice of authority. "I command it."
+
+At the word old Otto's mutterings ceased, though he shot a black look at
+the younger man.
+
+"This machine," he suggested, "it is not hurt. I will take it and do our
+work. There is haste. You remain with the car. Do what you will with
+these people."
+
+"Go then," said his nephew curtly. "You can take the train at the first
+station and make time."
+
+As the old man mounted the motorcycle and sped away Frederic sprang from
+the car, and approaching the spot where Dean's body lay, began making an
+examination of his injuries.
+
+"Scalp wound, perhaps fractured skull, broken arm," Jane heard him
+saying aloud to himself. She noted curiously that as soon as he was left
+to himself he began speaking in English.
+
+He left Dean and approached her. As he came nearer she closed her eyes
+again, trying to plan some course of action. Her head was throbbing so
+that she found it impossible to think. She felt toward young Hoff a
+warmth of gratitude for not having gone off and left them helpless as
+his uncle had insisted. Even though he was an enemy of her country, a
+man to be hated, a spy, she could not help being glad for his presence
+there. What would she have done without him, with Dean lying there
+injured and helpless on this lonely mountain road?
+
+"This chap seems only stunned," she heard him say as he bent over her,
+then as he looked closer, she heard him exclaim:
+
+"My God, it's Jane!"
+
+In an instant he was down at her side on his knees. Tenderly one of his
+arms went about her and lifted her head.
+
+"Miss Strong, Jane, Jane," he implored, "Jane dear, speak to me."
+
+Stunned though she still was a flush crept into Jane's cheeks at the
+unexpected term of endearment, though she still kept her eyes closed.
+Gently he laid her back on the turf and hastened to the automobile,
+returning with a flask which he held to her lips. Slowly Jane opened
+her eyes.
+
+"Thank God," he cried. "Jane dear, tell me you are not hurt."
+
+For a moment she lay there, staring wonderingly at him as he bent over
+her imploringly, the tenderest of anxiety showing in every line of his
+face. Unprotestingly she let him slip his strong arm once more under her
+head. In her dazed brain there was a strange conflict of peculiar
+emotions. He was a German, a spy,--she hated him, and yet it was
+wonderfully comforting to her to have him there. Under other
+circumstances she could have loved him. He was so handsome, so masterful
+and so kind, too. He cared for her. Had he not called her "Jane, dear"
+in his amazement at finding her lying there? But she must not let
+herself think of him in that way. It was her duty, her sacred duty to
+trap him, to thwart his nefarious plans against her country. She must do
+her duty just as her soldier brother was doing his in far away France.
+
+Still supported by Hoff's arms she sat up, trying to collect her
+thoughts and gingerly testing the movement of her arms and limbs.
+
+"Tell me," he cried again, "Jane, dear, are you hurt?"
+
+"I don't think so," she managed to say.
+
+With his assistance she got up on her feet and walked uncertainly to
+the car, shuddering as she looked at Dean's crumpled senseless body.
+
+"Your friend," said Hoff, as he placed her in the forward seat and
+wrapped a rug about her, "I am afraid, is badly hurt."
+
+"It's our chauffeur, Thomas Dean," she explained confusedly.
+
+She had been wondering what she could say to Frederic to account for her
+presence there. It was unconventional at least for a girl to be
+motorcycling about the country dressed in man's clothes with a
+chauffeur. Hoff must surely realize now that she had been shadowing him.
+She felt almost certain that he had known it from the very first, since
+that afternoon when he had overheard her telephoning about the "fifth
+book." Yet never by word or manner had he betrayed the fact that he
+suspected her. Beyond his customary reserve in speaking about himself or
+his activities, there was nothing to indicate that he knew anything yet.
+Whatever she told him now she must be careful not to betray her mission.
+Perhaps even in spite of all that had happened she still might be able
+to aid Chief Fleck in trapping them.
+
+But did she really want to trap Frederic Hoff? Had Thomas Dean's bitter
+charge that she was trying to protect him been true? Frederic Hoff loved
+her. She, yes--she had to admit it to herself--she was beginning to love
+him. Could she go on with it?
+
+Hoff had been busy lifting the unconscious Dean into the tonneau. As she
+watched him as he lifted up the body unaided she was conscious of
+admiration of his great strength.
+
+"Will he die?" she whispered.
+
+"I don't know," he answered. "He is badly hurt. We must get him to a
+doctor at once."
+
+He stopped a moment longer to examine the car. Fortunately the glancing
+blow that it had struck the motorcycle had done no more damage than
+shatter one of the lamps and bend the mud guard. Soon they were moving
+rapidly in the direction of New York.
+
+"I think," said Hoff, "we had better leave him in the care of the first
+doctor we come to. We can say that he is an injured motorcyclist we
+found lying in the road."
+
+"And me?" asked Jane, almost fearfully.
+
+"I'll take you back to the city with me."
+
+"No," she replied, "that won't do. I ought to stay by him. Besides, if
+I return with you, it will be hard to explain."
+
+He turned to look inquiringly at her and for a moment drove on in
+silence.
+
+"There's nothing more you can do for the man once he is in competent
+medical hands, except to notify his people. Is he married?"
+
+"No," said Jane, "he's not married. I can tell his friends."
+
+"Did your parents know about"--he hesitated--"about this trip with the
+chauffeur?"
+
+Jane blushed guiltily, wondering what he suspected of her. She hoped
+that he did not think she had a habit of going off on such journeys with
+the chauffeur. Even though the man at her side was officially her enemy
+she resented being put into a position that would cheapen her in
+his eyes.
+
+"No," she replied, "they knew nothing about it."
+
+Hoff drove on in silence. She had feared that he might ask her more
+embarrassing questions, might insist on knowing where she had been going
+when the accident occurred. A panic seized her. What if he should ask
+her? What could she tell him? He had a masterful way about him. If he
+took it into his head to make her confess she realized that she would
+have a struggle to keep from telling him everything. She made up her
+mind that she would not, she dare not answer any more questions.
+
+When he spoke again she was relieved to hear a suggestion instead of a
+query.
+
+"When we have crossed the ferry," he said, "you can put on a dust coat
+to hide your costume, and I will send you home in a taxi. Will that be
+all right?"
+
+"That will do nicely," she replied, gratefully conscious that he was
+endeavoring to plan so that her part in the afternoon's adventures need
+not become public.
+
+Nevertheless she waited nervously while Hoff and the doctor carried Dean
+into the doctor's home. What if the doctor's suspicions should be
+aroused, and he should insist on knowing all the details of the
+accident? To her astonishment the doctor seemed to accept Hoff's brief
+recital of finding an injured motorcyclist on the road without question.
+Perhaps if she had seen the amount of the bills Hoff left to care for
+the chauffeur's treatment she might have understood better.
+
+Yet unconscious though Dean had lain all the way, as they resumed their
+journey without him, she felt a sudden sense of dread at being alone in
+the car with Frederic Hoff. It was not that she longer feared he would
+endeavor to make her tell her reasons for the expedition. She was afraid
+that with just the two of them alone in the car he might seize the
+opportunity to declare his affection for her.
+
+But, to her amazement, he hardly spoke a word to her on all the rest of
+the journey homeward. Once in a while as she ventured a glance in his
+direction, annoyed a little perhaps by this neglect of her, she saw only
+a strong face set in lines of thought, his brow wrinkled in deep
+perplexity, and his blue eyes looking steadily at the road ahead--and at
+something far, far beyond.
+
+Save for an occasional solicitous question about her comfort he did not
+speak again until just after he had put her in a taxi at the ferry. As
+Jane was trying to say her thanks he leaned forward unexpectedly, his
+tall frame blocking the whole doorway.
+
+"Jane," he said, his voice vibrant with emotion, "Jane, you must trust
+me. Everything must come out all right. Some day--some day soon when we
+have won--I am coming to find you and tell you that I love you."
+
+"When we have won!" Jane shuddered and drew back in the car, aflame with
+sudden wrath.
+
+She had read and had heard often of the unspeakable conceit of the
+Prussians. She knew that they regarded themselves as supermen who could
+not be defeated. Her challenged American pride rose to battle. As she
+rode home she was sure now that more than she hated anything else in the
+world she hated Frederic Hoff, the spy, the German, who had dared to
+boast to her that they expected to win.
+
+
+
+CHAPTER XII
+
+PUZZLES AND PLANS
+
+Chief Fleck had spent a sleepless night trying to put two and two
+together. Instead of the answer being "four" as it should have been each
+time he completed his figuring the result was "zero." Time and again he
+mustered the facts into columns, only to succeed in puzzling himself
+the more.
+
+Two German spies, the Hoffs, had set out together in their motor on
+their usual mysterious Wednesday mission. Two other persons, two of his
+most intelligent operatives, Thomas Dean and Jane Strong, had set out on
+a motorcycle to shadow them.
+
+What had happened?
+
+Otto Hoff had returned to his apartment on foot, hours before his usual
+time, seemingly much perturbed about something.
+
+Frederic Hoff had arrived back at the apartment, also on foot, some
+hours later than usual, and the motor had not been returned to its
+usual garage. Frederic Hoff had appeared to be unusually elated about
+something.
+
+Thomas Dean was in a doctor's home somewhere up the Hudson with a broken
+arm and a bad scalp wound and was unable to tell what had become of
+either Miss Strong or the motorcycle.
+
+Jane Strong had arrived home in a taxicab half an hour before Frederick
+Hoff, apparently unhurt but in a most peculiar condition of mind. When
+Chief Fleck had called her on the 'phone she had refused to answer any
+questions. The best he could get out of her was a promise that she would
+come to his office in the morning.
+
+From this situation Fleck's shrewd and experienced mind had been wholly
+unable to make any satisfactory deductions. That something unforeseen
+and unusual had happened to the Hoffs he was certain. It was the first
+time on a Wednesday that they had not returned together. Whatever it was
+that had happened it had depressed old Otto and had been a cause of
+elation to Frederic. What could it have been? That was the poser.
+
+Coupled with this was the annoying fact of Jane Strong's sudden
+reticence. Hitherto he had found her at all times ready and eager
+whenever he called on her--ready to do anything he asked her, or to tell
+him everything. Why had she suddenly balked? He recalled that Dean had
+hinted, and Carter, too, that the girl was becoming interested in the
+younger of the Germans, yet he scouted the possibility of Jane having
+gone over to the enemy's side. A girl of her stock, living with her
+parents, with a brother fighting in France, never could be guilty of
+disloyalty, even if she were in love. Yet how was her disinclination to
+talk to be accounted for? After he had received a report that she was at
+home he had waited, expecting her to call him up. When she had not done
+so, he had called her. She had been positively curt and decisive. She
+had nothing to say to him, she had replied, at present. Dean was safe.
+She would come to his office in the morning. There was nothing for him
+to do but to await her arrival.
+
+He was expecting Carter, too. He had sent him to Nyack the evening
+before as soon as he had learned of Dean's whereabouts. Carter was to
+find out everything that Dean had learned and report as soon as he
+could. It was Carter who arrived first.
+
+"Dean doesn't know what happened to him, nor where the girl went," said
+Carter. "They had lost the Hoffs' trail at the Garrison ferry, as he
+told you over the 'phone. They had to wait there half an hour for
+another boat. They scouted around West Point, and nearly three hours
+afterward they picked up the trail heading toward New York. About ten
+miles south of West Point they were clipping along a mountain road when
+something happened. Dean is not sure whether he hit a stone in the road
+or whether an automobile struck them. He was knocked unconscious and
+didn't remember anything more until he came to and found the doctor
+setting his arm."
+
+"Who took him to the doctor's?"
+
+"It was a couple, the doctor said, who explained that they had found
+Dean lying in the road under his wrecked motorcycle. The doctor could
+not remember what the couple looked like. Said he had been too busy
+looking after the injured man. I did worm out of him, though, that the
+man had left two hundred dollars with him to take care of Dean."
+
+"That's funny," said the chief.
+
+"It sure is," said Carter. "Looks like hush money to me. What does the
+girl say?"
+
+"Nothing yet," said Fleck. "She wouldn't talk at all last night, but
+she's coming here at ten."
+
+"That's funny," said Carter. "Why wouldn't she talk?"
+
+"I don't know yet," said Fleck decisively, "but I am going to find out.
+Do you really suppose that she has fallen in love with young Hoff?"
+
+Carter shook his head.
+
+"Dean thought so, and I know that Dean was in love with her himself, but
+I don't know. I'd bank on that girl somehow, even if she is in love."
+
+"There she comes now," said the chief as he heard the door of the outer
+office open.
+
+As Jane entered she faced the two men almost defiantly. She too had had
+a sleepless night. Although she herself had been physically uninjured in
+the accident the shock to her nerves had left her unstrung, and besides
+she had been bothering all through the dark hours as to how much of what
+had happened in the last few hours it was her duty to tell to
+Chief Fleck.
+
+As her personal relations with Frederic Hoff and her feelings toward him
+had in no way affected her sense of duty she felt that it was
+unnecessary for her to report the declaration of love he had made to
+her. Surely an affair that involved only the heart was her own property
+so long as she faithfully reported anything and everything that might
+lead to the exposure of the Hoffs' plots. She could not see that it was
+any of Chief Fleck's business, nor her country's either, if Frederic
+Hoff had fallen in love with her. At any rate it would be utterly
+impossible for her to make any statement about her own feelings toward
+him. Even in her own heart and mind she was not quite sure what they
+were. From the first his forceful personality had had great charm for
+her. His obvious interest in her she had found delightful and
+flattering. When she recalled how gallantly he had insisted on remaining
+to rescue Dean and herself, even before he knew her identity, she was
+filled with admiration for him. Yet always matched against all that she
+found lovable in him was the knowledge that he was a German, a traitor,
+a spy, perhaps a murderer, and at times she felt that she hated him with
+a hatred that never could be overcome.
+
+"Well," said Fleck, studying her countenance, "what have you to tell
+us?"
+
+"How is Dean?" she asked. "Will he live?"
+
+Fleck and Carter exchanged glances. Was she, they wondered, really
+concerned in the handsome young chauffeur's welfare, or had she merely
+put the question to gain time in framing what she was going to say?
+
+"I just left him," said Carter, in response to an almost imperceptible
+nod from the chief; "he's all right except for a scalp wound and a
+broken arm."
+
+"I'm glad," said the girl impulsively.
+
+"What happened to him?" asked Carter.
+
+"Don't you know? The Hoffs' automobile hit us and overturned the
+motorcycle."
+
+"The Hoffs' car!" cried Fleck and Carter together.
+
+"Yes, I thought you knew."
+
+"Tell us everything," demanded Fleck. "Where did it happen? Did they
+run you down purposely?"
+
+"I don't think so; in fact I am sure they didn't. It was entirely
+accidental."
+
+"Where did it happen? All Dean could remember was that you had picked up
+their trail about ten miles south of West Point. He could not tell how
+the accident occurred. He didn't even mention the Hoffs or seem to
+suspect that they were anywhere near at the time."
+
+"I don't think he saw their car at all," Jane explained. "I caught just
+a glimpse of it before we were crashed into. We were on a mountain road
+going down a steep hill when their motor shot out of a deep cut just as
+we were passing."
+
+"What happened then?"
+
+"I must have been stunned for a moment or two. When I regained my senses
+the Hoffs' car had stopped, and Frederic was backing the car to where
+the accident had happened. His uncle was storming at him for stopping.
+He wanted Frederic to go on and leave us there, but Frederic wouldn't do
+it, and they quarrelled. Frederic won out by pointing out that two
+bodies lying at the entrance would arouse suspicion."
+
+"At the entrance to what?"
+
+"I don't know. He didn't say. I think I could find the place again."
+
+"We've got to find it," said Carter.
+
+"Indeed we have," Jane agreed, "and quickly, too. I fear we are going to
+be too late. Old Mr. Hoff seemed to be in terrible haste and spoke of
+their plans being nearly completed."
+
+"Go on," said Fleck quietly, "tell us the rest."
+
+"Frederic Hoff stayed behind to pick us up, and the old man went off on
+the motorcycle. I heard them talking about his taking a train at the
+nearest station."
+
+"What did young Hoff do when he found it was you lying there?"
+
+"He seemed surprised and startled."
+
+"What did he say?"
+
+Jane colored and hesitated. There rose in her mind the picture of his
+tall figure bending over her, with anguish in his eyes, with expressions
+of endearment on his lips. She could not, she would not tell them what
+he had said.
+
+"He asked if I was hurt."
+
+"Is that all?"
+
+Again she blushed and hesitated.
+
+"That's all."
+
+"Did he not seem amazed at finding you there? Did he not ask you to
+account for your presence there?"
+
+"No," said the girl, firmly, "he didn't."
+
+"Didn't he question you at all?"
+
+"No," she insisted, "he was busy getting Dean into the car. He was
+unconscious, and it looked as if he was badly hurt."
+
+"Queer, mighty queer," muttered Carter to himself.
+
+"Didn't he ask you who Dean was?" questioned Fleck.
+
+"I explained that he was our chauffeur. He may have known him by sight
+at any rate."
+
+"Go on."
+
+"We stopped at the house of the first doctor we came to and left Dean
+there, and then Mr. Hoff brought me on home in the car. At the ferry he
+put me into a taxi."
+
+"What did you talk about on the trip home?" asked Fleck suspiciously.
+"Didn't he try to pump you?"
+
+"We hardly talked at all. He seemed concerned only in getting me home
+without its becoming known that I had been in an accident."
+
+"Is that all?" asked the chief. She could see by his manner that he
+mistrusted her, that he felt that she was keeping something back.
+
+"We hardly exchanged a dozen words," she insisted.
+
+Fleck shook his head in a puzzled way.
+
+"I can't understand it at all," he said. "Old Otto is a common enough
+type of German, painstaking, methodical, stupid, stubborn, ready to
+commit any crime for Prussia, but the young fellow is of far different
+material. He has brains and daring and initiative. He is far more alert
+and more dangerous. I cannot understand his finding you there and not
+trying to discover what you were doing."
+
+"I can't understand that either," Jane admitted.
+
+"There's no doubt in my mind," the chief continued, "that Frederic Hoff
+is the real conspirator, the head of the plotters."
+
+"Why do you say that?" asked Jane quickly. "What did you find out when
+you searched the apartment yesterday?"
+
+She felt certain from the manner in which he spoke that he must now have
+some damning evidence of Frederic Hoff's guilt. He was not in the habit
+of making decisions without proof.
+
+"We found," said Fleck, his keen eyes fixed on her face as if trying to
+read her innermost thoughts, "a British officer's uniform hanging in
+Frederic Hoff's closet, proof positive that he is a dangerous spy."
+
+"And," said Carter, pointing to the two clippings lying on Fleck's desk,
+"in the old man's waste-paper basket we found those."
+
+Jane picked up the clippings and examined them curiously.
+
+"What are they?" she asked, looking from one to the other; "cipher
+messages of some sort?"
+
+"We think so," said Carter. "We don't know yet."
+
+"I've noticed these peculiar advertisements often," said Jane, studying
+the clippings, "but I never thought of connecting them with the Hoffs. I
+wonder--" Fleck and Carter had their heads together and were talking in
+low tones.
+
+"I wonder," said the chief, "what young Hoff is up to. He must have
+known the girl was there to spy on him. I can't understand his not
+quizzing her."
+
+"He's a cagey bird," Carter replied. "They are both of them expert at
+throwing off shadowers. Both of them know, I think, they are
+being watched."
+
+"Oh, listen," interrupted Jane, all excitement. "I believe I can read
+this cipher. The number of letters in the word in big type at the
+beginning of the advertisement is the key. See, this word here is
+'remember'--that has eight letters. Read every eighth word in this
+advertisement. I've underlined them."
+
+Fleck took the paper quickly from her hand and he and Carter bent
+eagerly over it to see if her theory was correct.
+
+ REMEMBER
+
+ Please, that our new paste, Dento, will
+ _stop_ decay of your teeth. Sound teeth
+ are _passports_ to good health and comfort.
+ No good _business_ man can risk ill health.
+ It is _closely_ allied with failure. The
+ teeth if not _watched_ are quickly gone.
+
+ USE DENTO
+
+ A genuine, safe, pleasing paste for the
+ teeth, prepared and sold only by the
+ Auer Dental Company, New York.
+
+"Stop passports business, closely watched," repeated Fleck aloud. "That
+certainly makes sense and fits the facts, too. In the last few days we
+have drawn the net closely around a gang of supposed Scandinavians who
+have been busy supplying passports to suspicious-looking travelers.
+Let's see the other advertisement."
+
+Excitedly the three of them read it together as Fleck underscored every
+fourth word.
+
+ DON'T
+
+ Forget it is _imperative_ for one and _all_
+ to use cleansing _agents_ on teeth that
+ _leave_ no bad results. "_Ship_ more of
+ that _wonder_-working paste immediately.
+ _Workers_, employers, wives, all _ready_ to
+ commend it. _Friday's_ supply gone,"
+ writes a druggist, to whom a big shipment
+ was made last week.
+
+ USE DENTO
+
+ A genuine, safe, pleasing paste for the
+ teeth, prepared and sold only by the
+ Auer Dental Company, New York.
+
+"Imperative all agents leave ship. Wonder-workers ready Friday," read
+Fleck. "That's surely a message, a warning to Germany's agents to get
+off some ship or ships before they are destroyed. You, Miss Strong, have
+heard old Otto talk about the wonder-workers, whatever they are, being
+nearly ready. I guess he means bombs--bombs to blow up American
+transports. This message says they will be ready Friday."
+
+"And to-morrow's Friday," said Jane.
+
+
+
+CHAPTER XIII
+
+THE SEALED PACKET
+
+"Is this Miss Strong?"
+
+Jane, her face blanching, held the receiver in wavering hands for a
+moment before she could muster courage to answer. She had recognized
+Frederic Hoff's voice speaking. What could he want with her now?
+
+"It is Miss Strong," she managed to answer.
+
+"This is Frederic Hoff. May I come in for a moment? It is most
+important."
+
+Again Jane hesitated. Frederic was the last person in the world she felt
+like seeing just at this moment. Only five minutes before she had
+arrived home from Chief Fleck's office. She was under orders to hold
+herself in readiness to start immediately for the scene of yesterday's
+accident. That this trip, unless their plans miscarried, would
+inevitably result in the exposure and disgrace of both the Hoffs she
+felt morally certain. To face on friendly terms the man whose downfall
+she was plotting, the man who only a few hours before had told her that
+he loved her, seemed a task far beyond her endurance, a situation too
+tragic for her to cope with.
+
+Duty, her duty to her country, her honor, her patriotism, her affection
+for her soldier brother, all bade her mask her feelings and seek one
+more opportunity of leading Hoff to betray himself in conversation if
+that were possible. Yet, to her own amazement and horror, her heart
+protested vigorously against such action. Harassed as she was by
+conflicting emotions, worn out by the trying experiences that had been
+hers the last few days, she realized at last that she was really in love
+with Hoff. The throb of joy that she had experienced at the sound of his
+voice, the thrill that came to her each time she saw him, the delight
+she found in his presence, the fact that despite all the circumstances,
+she wanted to be near him, to be with him, convinced her against her
+will and judgment that her heart was his. In vain she marshalled the
+damning facts against him. She tried to remember only the expression of
+murderous hate she had seen on his face the night that her predecessor,
+the other K-19, had been murdered. She tried to think of him only as a
+treacherous spy, an enemy of her country forever plotting to destroy
+Americans, yet she could not. However base and treacherous and low her
+reason told her Frederic Hoff must be, her refractory heart persisted in
+beating faster at the prospect of his coming.
+
+Hitherto not much given to self-analysis, she now found herself
+wondering at herself. What could be the matter with her? Why must she
+love this rascal? Why could she not fall in love with some decent,
+clean, patriotic young American, with some man like Thomas Dean?
+Chauffeur though he was now pretending to be, she knew that he was a
+college man, well-bred, and traveled. She knew, too, that Dean was in
+love with her. For him she had a sincere liking, great admiration even,
+and toward him now she was experiencing that feeling of sympathy a woman
+always has for the man she cannot love. But her feeling toward Dean, she
+classified as only that of friendship, nothing at all like the
+passionate affection that was rapidly drawing her closer and closer
+to Hoff.
+
+Dared she see him now? Might not her love for him overcome her high
+desire to be of service to her country? Might she not be led by her
+unruly heart into betraying to him the fact that he was in the most
+imminent peril?
+
+Yet she must see him, she told herself. Perhaps this very day he might
+be arrested and imprisoned. She might never again have the opportunity
+of seeing him alone and of talking with him. Into her troubled brain
+came a daring thought. Perhaps it was not too late, even yet, to turn
+him from his evil course. Was there, she wishfully wondered, any
+possibility of her leading him, through his love for her, to forsake his
+comrades, even to betray them? No, she admitted to herself, that was a
+preposterous idea. He was too dominating, too forceful, too determined,
+to be influenced to anything against his will.
+
+"May I come in, please?" he kept insisting over the 'phone.
+
+"Only for a minute," she answered tremulously. "I'm going out soon. I
+have an engagement."
+
+"I'll come right over. I will not keep you long."
+
+As she awaited his arrival, subconsciously desirous of looking her best
+in his presence, she stopped almost mechanically before her mirror to
+adjust her hair, letting him wait for her for a few minutes.
+
+He sprang forward to meet her as she entered the room where he was, his
+face beaming with delight at the sight of her.
+
+"Jane," he cried, with a volume of meaning in the monosyllable, as
+seizing her hand, he held it tightly and gazed earnestly into her face.
+
+Bravely she tried to meet his gaze, to read in his face if she could the
+object of his unexpected visit, but her eyes fell before his, and the
+hot blood surged into her cheeks. Within her raged a desperate battle
+between her head and heart. Mingled with her unwelcome quickening of the
+pulse at his approach and admiration for his audacity in coming to her
+when he must know that she knew what he was, there was also an
+overwhelming sense of futile rage that he, a scheming German plotter,
+dared intrude his presence into an American home.
+
+"I'm glad to see you appear no worse for your accident," he said,
+releasing her hand at last. "You got home all right, without attracting
+any one's notice?"
+
+"Oh, yes," she answered, trying to make her reply seem wholly
+indifferent and disinterested.
+
+"Your chauffeur is all right, too," he went on. "I telephoned this
+morning. He had already left the doctor's. There's nothing more the
+matter with him than a broken arm and a scalp wound. That's fortunate,
+isn't it?"
+
+"Very fortunate," she admitted.
+
+All at once as they stood there there seemed to have arisen between them
+an invisible, impenetrable barrier. They faced each other wordlessly,
+each embarrassed by the knowledge of the secret gulf that was between
+them. Hoff was the first to recover from it.
+
+"Come," he said, "sit down. There is something I wish to say to
+you,--something of the utmost importance, Jane."
+
+Still struggling with her emotions, Jane allowed him to place a chair
+for her and seated herself, striving all the while to crush back into
+her heart the warmth of feeling toward him that always overwhelmed her
+in his presence, endeavoring to present to him a mask of cold
+indifference. Yet her curiosity, as well as her affections, had been
+greatly stirred by his remark. What was it that he was about to say to
+her? Did he intend, in spite of the insurmountable obstacles between
+them, dared he, ask her to marry him? Tremblingly she waited for what he
+had to say.
+
+"Jane," he said, "you know that I love you. I am confident, too, that
+you love me."
+
+"I don't love you," she forced her unwilling lips to say. "I can't. When
+our country is at war, when she needs men, brave men, how could any true
+American girl love any man who stayed at home, who idled about the
+hotels, who--"
+
+"Girl," his voice grew suddenly stern and commanding, softening a little
+as he repeated her name, "Jane, dear, let me finish. I love you. There
+are grave reasons--all-important reasons--why I may not now ask you to
+be my wife."
+
+"I never could be your wife," she cried desperately, "the wife of a--"
+
+The word died in her throat. She could not bring herself to tell him,
+the man she loved, the thing she knew he was.
+
+"My Jane," he said, wholly unheeding her impassioned protest, "you know
+little yet of what life means in this great world of ours. You, here in
+your parents' home, sheltered, protected, inexperienced, have not the
+knowledge nor the means of judging me. You must take me on faith, on the
+faith of your love for me. For a woman, life holds but two great
+treasures, two loves--her husband's and her children's. With a man it is
+different. Love is his, too, but there is something more, something
+bigger--duty. Here in your country--"
+
+Even in her distress she caught his phrase "here in _your_ country" and
+turned ghastly white. Always before in talking with her he had spoken of
+himself as an American. Did he realize, she wondered, that he had at
+last betrayed himself to her? Was he about to strip the mask from
+himself and his activities at last, and in the face of it all expect
+her, Jane Strong, to admit that she loved him?
+
+"Here in your country," he went on placidly, "women forced by economic
+conditions have been driven from home into business, into politics, into
+office-holding, even into war activities. Longing for the clinging arms
+of little children they are striving to forget in assuming some part in
+the affairs that belong properly to men. But to the true woman love must
+ever mean more than duty, more than country. Those are words for men. A
+woman, if she would find happiness, must follow her heart, must forsake
+all for the man she loves. A woman's duty is only to the man she loves,
+just as a man's duty is to be true to himself, to his country."
+
+"But," she cried, "you told me you were American, that you were born
+here?"
+
+"Jane," he persisted, with an impatient gesture, "we will not discuss
+that now. I love you. You must trust me in spite of everything. I know
+you will. You must. I can answer no questions. I can make no
+explanations. I can only say I love you. That must suffice."
+
+"No, no," she protested, almost sobbing.
+
+"I came here to-day," he went on calmly, "to ask a favor of you."
+
+"A favor," she cried.
+
+Calming herself she forced herself to look into his face. There was
+something so monstrously unbelievable about his audacity that she could
+hardly believe her ears. What sort of a credulous stupid creature was
+he, she angrily asked herself, that in one breath he could all but
+confess to her that he was a spy and in the next beseech her to do him a
+favor. Yet there came to her now a remembrance of her duty to her
+country. She felt that she must mask her feelings toward him, that if
+she was to be of service she must endeavor bravely to lead him on. She
+must try to induce him to confide in her. Hard as her task might be,
+what was it compared to the work her brother and those other brave
+American boys had undertaken facing the fire of death-dealing guns,
+facing the terrible gas attacks, living for days and weeks in those
+terrible trenches? Reinforced by a sense of duty, she made a pitiable
+effort at cordiality as she asked:
+
+"What is it you wish of me?"
+
+From one of his pockets he had brought forth a small packet which he
+held out to her. In spite of her agitation she forced herself to study
+it observingly, making note that it was tied with strong cord and sealed
+in several places with red wax. Curiously, too, she noted that on it was
+written her own name.
+
+"Jane," said Hoff, "to-night I am going away. I may be absent for only a
+day or two if all goes well, but it is possible I may never come
+back,--may never be able to see you again."
+
+She caught her breath sharply. There was the solemnity of finality in
+his tones. Where was he going? What might happen to him? She realized
+that the journey he was about to make was in connection with the plot
+that she and Chief Fleck were seeking to uncover. Evidently he
+anticipated peril in what he was about to undertake. Suppose he should
+be trapped in the commission of some act inimical to America's welfare?
+What would happen to him? He would be arrested, of course. More than
+likely he would be sent to prison. He might even be shot as a spy. What
+if she were the one responsible for his meeting a disgraceful death?
+How could she go on with it? She must warn him. She must try to persuade
+him to give up his plans. She tried hard to steady herself, to think
+calmly. She must listen to every word he was saying and try to
+remember it.
+
+"This little packet is for you," he went on. "I want you to keep it
+safely. In case anything happens, in the event that within one month I
+have not returned and you have heard nothing of me, I wish you to open
+it and keep what it contains. Promise me that you will do what I ask."
+
+In a panic of indecision she got up from her chair, trying to frame a
+score of questions, but none of them succeeded in passing the barrier of
+her trembling lips.
+
+"Promise me," he said softly yet impellingly, as he placed the little
+packet in her hand and closed her fingers over it.
+
+"I promise," she whispered, hardly knowing what she said.
+
+Quickly he caught her in his powerful arms. For just a second he held
+her there, his face close to hers, his blue eyes burning into hers with
+a steady inscrutable gaze as if he was trying to read in them the love
+her lips had refused to speak.
+
+Then, so quickly that it was all over before she quite realized what had
+happened, he had kissed her passionately full on the lips and was gone.
+
+Overcome with the lassitude which follows emotional crises, trembling in
+every limb, weak as from a long illness, the girl sank back into a
+chair, still clutching in her hand the sealed packet Hoff had entrusted
+to her. Minute after minute she sat there with staring eyes, with heart
+beating madly, with her whole body racked with the torment of
+her thoughts.
+
+Slowly she lifted the packet and turned it over and over, wondering what
+it could possibly contain, questioning herself as to what could have
+been Frederic Hoff's motive in entrusting it to her. Was there, she
+wondered, under those seals, some evidence of his guilt and treachery
+that he had not dared to leave behind him? He must have known that she
+suspected him and was seeking to entrap him. Had he, knowing all this,
+but sensing the love for him that he had kindled in her, taken advantage
+of it and extorted from her her promise to keep it safe?
+
+Wherein lay her duty now? More than ever she was certain that Frederic
+Hoff was on some hazardous mission for the enemy. He had all but
+admitted his nationality to her. Her own country's welfare demanded that
+the Hoffs' plans should be discovered and thwarted. Should she, or
+should she not open the package? Possibly it contained some secret code,
+some clue to the dastardly activities in which he and his uncle
+were engaged.
+
+But her heart rebelled. She recalled what he had said, that she must
+take him on trust. The memory of his burning kiss, of that last earnest
+look he had given her, refused to be forgotten. Whatever he was, however
+base the work in which he was engaged, she knew down deep in her heart
+that Frederic Hoff had been earnestly sincere when he had said that he
+loved her.
+
+As she debated with herself what she ought to do, the telephone rang
+again. It was Chief Fleck.
+
+"Can you meet me at the 110th Street subway station in half an hour?" he
+asked. "I'll be waiting in my car. Arrange it, if you can without
+arousing your family's suspicion, to be away all night."
+
+"I will be there," she answered.
+
+As she turned away from the telephone with sudden resolve she thrust the
+sealed packet, still unopened, into the bosom of her gown.
+
+"I promised him," she said almost fiercely. "I'll keep my promise. That
+much at least I owe our love."
+
+
+
+CHAPTER XIV
+
+THE MOUNTAIN'S SECRET
+
+In a turmoil of mental anxiety Jane waited the arrival of Chief Fleck at
+the place he had designated. She was still badly wrought up by the scene
+through which she had just passed with Frederic. There were moments when
+her heart insisted that, regardless of the despicable crimes that were
+laid at his door, she should forsake everything for him, for the man she
+loved. Had there been in her mind the slightest possible doubt as to his
+guilt she might indeed have wavered, but the evidence of his treachery
+seemed too manifest! She loathed herself for caring for him and felt it
+her sacred duty to go on with her work of aiding the government in
+trying to entrap both of them; yet how could she ever do it?
+
+As she waited she debated with herself whether or not to tell Chief
+Fleck what had passed between herself and Frederic. After all, why
+should she? That was her own secret, not the country's. If she stifled
+her love, and gave her best efforts to aiding the other operatives in
+running down the conspirators, what more could be expected of her?
+Certainly she was not going to tell any one of the sealed packet
+Frederic had entrusted to her. She had promised him she would keep it
+safe. Surely there could be no harm in that, yet the little parcel,
+still in the bosom of her gown where she had thrust it, seemed to be
+burning her flesh and searing itself into her very soul.
+
+In strong contrast with her own spirit of martyrdom was Fleck's manner.
+Never before had she seen him in such high spirits as he was when he
+drew up before the subway station in a low car built for speed. On the
+seat beside the chauffeur was a young man whom she recognized as another
+of the operatives. As Fleck swung the door of the tonneau open for her
+she noticed lying on the floor under a rug several rifles and drew back
+questioningly.
+
+"Come on, Miss Strong," he cried gaily. "Don't be afraid of them. We
+may be glad we have them before we return from our hunting expedition."
+
+"But," she asked hesitatingly as she took her seat beside him, "you
+don't expect to shoot these men--without a trial."
+
+Her heart seemed torn in anguish as she sensed anew the peril that lay
+ahead for Frederic. Misgivings that she might be unable to fulfil her
+task seized her, and she was smitten with reproach for her own conduct
+toward him. Why, an hour ago, when there was still opportunity, had she
+not warned Frederic? If he were really sincere in the affection he
+professed for her maybe she might have persuaded him, if not to betray
+his comrades, at least to abandon them and escape from the country. Yet
+even now her reason told her that any plea she might have made would
+have been worse than futile. Above and beyond his love for her she
+understood that he held sacred what he conceived to be his duty, his
+misguided duty to his erring country. It was too late now for regrets,
+for repentance, too late for her to do anything but to try to serve her
+country, cost her what it might, yet anxiously she awaited Chief
+Fleck's reply to her question.
+
+"Wouldn't I shoot them all on sight, gladly, the damned spies," he
+responded. "That's the great trouble with this country, Miss Strong.
+We're too soft-hearted and chivalrous. The Germans realize that war and
+sentiment have no place together. If killing babies and destroying
+churches will in their opinion help them win the war they do it without
+compunction. The civilized world decided that poison gas was too brutal
+and dastardly for use, even against an enemy, but that didn't stop the
+Huns from using it. They put duty to Germany above all else, and if
+their country expects it are ready to rob, murder, use bombs, betray
+friends, do anything and everything, comforted by the knowledge that
+even if we do catch them at it here in this country all we will do to
+them will be put them in jail for a year or two. If I had my way I'd
+shoot them all on sight."
+
+"Without any evidence--without trying them?" questioned Jane.
+
+"Without trial, yes--without evidence, no; but in the case of these
+Hoffs we have evidence enough to stand them both up and shoot them."
+
+"Have you learned more?" she asked quickly. "Is Frederic, too, involved
+with his uncle?"
+
+He shot an appraising glance at her. He had been inclined to regard
+Dean's suspicion that she was in love with the younger Hoff as the mere
+figment of jealousy, but where two young persons of the opposite sex are
+thrown together, there is always the possibility of romance. Jane
+colored a little under his searching glance, yet what he read in her
+face seemed to satisfy his doubts, and he made up his mind to take her
+fully into his confidence.
+
+"Thanks to your quick wit in reading those advertisements," he said, "we
+have now a fairly complete index of the Hoffs' activities in the last
+six months. I have been spending the last two hours in going over all
+the Dento advertisements that have appeared. For weeks they have been
+sending out a regular series of bulletins."
+
+"Bulletins about what?" asked Jane.
+
+"About everything of interest to the secret enemies of our country:
+explanations of where and how to get false passports, detailed
+statements of the sailings of our transports, directions for obtaining
+materials for making bombs, instructions for blowing up munition plants,
+suggestions for smuggling rubber, orders for fomenting strikes. They
+even had the nerve to use the name of William Foxley, signed to a
+testimonial for Dento."
+
+"Who is William Foxley?" asked Jane curiously.
+
+"In the Wilhelmstrasse code that was in use when Von Bernstorff was
+still in this country; in sending their wireless messages they made
+frequent use of proper names which had a code meaning. Boy-ed was
+'Richard Houston,' Von Papen was 'Thomas Hoggson' and Bolo Pascha was
+always mentioned as 'St. Regis,' In this same code 'William Foxley'
+always meant the German Foreign Office."
+
+"But surely you did not learn this from the advertisements?"
+
+"Not at all. Hugo Schmidt, who was reputed to be the paymaster of the
+gang, was caught trying to burn a copy of this code at the German Club.
+With the records of their wireless messages our government managed to
+reconstruct the whole code. The use of a word or two from this code in
+these advertisements is most significant. It shows that whoever prepared
+these advertisements was high in the confidence of the German
+government. Only the very topnotch spies are likely to be permitted to
+know the diplomatic code."
+
+"And you think, then, that Otto Hoff may be the head of the conspirators
+in this country?" said Jane.
+
+"Not Otto--Frederic," said Fleck quickly. "The young man, I am certain,
+was the director, probably sent out from Berlin after the country became
+too hot for Von Papen and Boy-ed. The old man, I believe, merely carried
+out his orders. I doubt even if they are uncle and nephew."
+
+"I think you are wrong about that," protested Jane. "Whenever I was
+listening over the dictograph it was always the old man who was so
+bitter against America. It was he who talked about the wonder-workers
+and the necessity for haste. I never heard Frederic say
+anything--anything disloyal, that is."
+
+"The fact that he knew enough to keep his mouth closed shows that he is
+the more intelligent of the two. Don't forget, too, that at times he
+even dared to don the uniform of a British officer. You saw him
+yourself. Undoubtedly he is the more dangerous of the pair."
+
+"But who read these advertisements?" asked Jane, seeking to change the
+subject. "For whom were the bulletins intended?"
+
+"It was one of their ways of keeping in communication with their
+thousands of secret agents all over this country. I wouldn't be
+surprised if occasionally these advertisements were printed in Texas
+papers and shipped over the border into Mexico. We have been watching
+the mails and the telephone and telegraph lines for months, yet all the
+while Mexico has been sending messages across, telling the U-boats
+everything they needed to know. We never thought of checking up the
+advertising in papers in the Mexican mail."
+
+"But what about the messages old Mr. Hoff left in the bookstores? Was
+that part of the plan, too?"
+
+"It may have been simply a duplicate method of communication in case
+the other failed. The Germans here know that they are constantly watched
+and take every precaution. We'll land that girl as soon as we have the
+Hoffs safe behind the bars, and then we'll soon see if Carter's
+dachshund theory was right."
+
+"But who," asked Jane, "is the spy in our navy? Who signalled the Hoffs'
+apartment and supplied them with the news about our transports? Was it
+Lieutenant Kramer?"
+
+"Probably," said Chief Fleck carelessly, "that is not my end of the
+work. It is up to the Naval Intelligence Bureau to clean out the spies
+in the navy. I'm after the boss-spy. After we land him it will be easier
+to get the small fry. A defiant German prisoner once boasted to me that
+Germany had a man on every American ship, in every American regiment,
+and in every department in Washington. I suspect it comes pretty near
+being true. A country that has so many citizens with German names and
+such an enormous population of German descent has its hands full."
+
+As they talked the chief's car had crossed the ferry, and turning north
+through Englewood, was heading rapidly in the direction of West Point.
+
+"Where are we going now?" Jane ventured to ask. "To the place where I
+was yesterday--where we had the accident?"
+
+"Not directly," the chief replied. "I sent Carter and some men up there
+ahead of us to do some reconnoitering. I'll get in touch with Carter at
+the restaurant at the State Park. He was to call me up. We are nearly
+there now."
+
+As the car swung into the park and stopped before the entrance of the
+two-story restaurant building, Fleck sprang hastily out and started for
+the telephone but stopped abruptly at the sight of a young man with
+bandaged head and with one arm in a sling who rose from the concrete
+steps of the building to greet him.
+
+"Why, Dean," he exclaimed in amazement, "what are you doing here? How
+did you get here?"
+
+"You don't think I was going to be left out at the finish," laughed the
+chauffeur.
+
+"But your injuries, your arm--"
+
+"Both all right, as right as they'll be for several weeks."
+
+"But how did you know we were coming here? How did you manage to get
+here?"
+
+"Carter stopped on his way out to make sure about the road. I wanted to
+come with him, but there was no room in his car. He refused to bring me,
+anyhow. I managed to worm out of him what your plans were, and the
+doctor's jitney did the rest."
+
+"Well," growled the chief, with simulated indignation, though secretly
+delighted with Dean's show of spirit, "I suppose there's nothing else to
+do but to take you along. Climb in there beside Miss Strong."
+
+As Dean approached the car Jane rose in amazement.
+
+"Oh, Thomas, Mr. Dean," she cried, "I'm so glad to see you. I was afraid
+yesterday that you had been badly hurt."
+
+"It was a close shave for both of us," he admitted, flushing with
+delight at the warmth of her greeting, "but what are you doing here? The
+Chief had no business to bring you on a trip like this."
+
+All his affection for the girl had revived at this unexpected sight of
+her, and with a lover's righteous anxiety he resented Fleck's having
+exposed her to the probable perils of this expedition to the enemy's
+secret lair.
+
+"They needed me," she said simply, "to show them the way."
+
+"That need exists no longer," he protested, "since I am here. The Chief
+must send you back."
+
+"Don't be absurd," she objected warmly.
+
+"But it is no place for a woman," he insisted doggedly, kicking
+meaningly at the rifles on the floor of the car. "There may be a fight.
+These men are desperate and dangerous and more than likely will resist
+any attempt to arrest them."
+
+"I want to be there to see it if they do," said Jane calmly.
+
+"Please, won't you, for my sake," he begged, "go back home or at least
+wait here for us?"
+
+"I won't," said the girl doggedly.
+
+"I'll ask the Chief to send you back."
+
+"Don't you dare," she retorted hotly, resenting his air of protection
+toward her.
+
+She was glad for the presence of the two other men in the car. She
+sensed that it was only their being there that kept Dean from making a
+scene. There was nothing in his manner toward her now of the obsequious
+chauffeur. While she admitted to herself that there was no longer the
+necessity for his continuing in his fictitious character she strongly
+resented his loverlike jealousy for her welfare and welcomed the chief's
+return, for she saw from his face, as he came running up to the car,
+that he had received some sort of news that had highly delighted him.
+
+Almost before he was in the car he had given orders to start, leaving no
+opportunity for Dean to make his threatened protest against
+Jane's presence.
+
+"I got Carter on the 'phone," Fleck explained hurriedly as they swung
+out of the park and turned northward. "He has succeeded in locating the
+place the Hoffs go every week. It is about three miles back off the
+road, over toward the river from the place where you two had that
+accident yesterday. Away off there in the woods in a deserted locality
+is a sort of club, the members of which are Austrians or Germans. They
+have given it out that they are health enthusiasts and mountain
+climbers, 'Friends of the Air,' they call themselves."
+
+"Who are they really? What are they doing there?" asked Jane
+interestedly.
+
+"Carter has not had time yet to learn much about them. The place was
+some sort of a health resort or sanitarium that failed several years
+ago. Last summer it seems to have been taken over by this bunch of
+Germans. At times there are only two or three of them there, but
+recently the number has increased. Carter thinks there must be a dozen
+men there now."
+
+"How did he locate the place?" asked Dean.
+
+"Carter is a real detective," said the chief enthusiastically. "He
+reasoned it out that where there were Germans there must be beer. He
+scouted along the main road until he found a wayside saloon where, as he
+had shrewdly suspected, they got their liquid supplies. From the
+proprietor of the place and the hangers-on he had no trouble in getting
+the information he wanted without arousing their suspicions."
+
+"Where is Mr. Carter now?" asked Jane.
+
+"He's waiting for us a few miles up the road."
+
+"He has only four men with him, hasn't he?" questioned Dean.
+
+"That's all."
+
+"And there are four of us here."
+
+"Three and a half," said the chief, motioning to Dean's bandaged arm.
+
+"It's my left arm," he retorted. "I can handle a revolver, at least,
+with my good arm."
+
+"And I can shoot, too," boasted Jane; "that makes nine of us."
+
+"Nine of us against twelve of the enemy," said the chief thoughtfully.
+"It looks like a busy evening."
+
+"And don't forget," warned Jane, "that the Hoffs are coming up this
+evening. At least young Mr. Hoff told me this morning that he was going
+away this evening. That makes two more on the other side."
+
+"And one of them," muttered Fleck, "a mighty dangerous man."
+
+
+
+CHAPTER XV
+
+THE HOUSE IN THE WOODS
+
+At last they had reached their goal, the place which the two spy
+suspects undoubtedly had been in the habit of visiting regularly every
+week for months past.
+
+Sheltered by a great rock and the underbrush about it, Jane, with Fleck
+and Thomas Dean, peered eagerly out at a dingy, weather-beaten frame
+structure which neighborhood gossip had told them was the sheltering
+place of the "Friends of the Air." In its outward appearance at least,
+Jane decided, it was disappointingly unmysterious. It looked to her
+merely like a cheap summer boarding-house that had gone long untenanted.
+There was a two-story main building, cheaply constructed and almost
+without ornament, sadly crying for new paint, and the usual outbuildings
+found about such places in the more remote country districts.
+
+Still from Chief Fleck's manner she was certain that he regarded their
+achievement in locating the place as of the highest importance. They had
+run their two automobiles noiselessly up the lane leading from the main
+road until they were perhaps half a mile distant from the house and then
+had concealed them in the woods near-by, being careful to obliterate all
+traces of the wheel tracks where they had left the lane. Making a dtour
+among the trees they had reached their present position not more than
+three hundred yards away from the buildings. They had carried the rifles
+with them, and these now were close at hand, hidden under the log on
+which the three of them were sitting. Carter, with the other men, under
+Fleck's orders, had divided themselves into scouting parties and had
+crept away through the woods to study their surroundings at still closer
+range while the waning afternoon light permitted.
+
+At first glance one might have been inclined to believe the buildings
+untenanted. There seemed to be no one stirring about the place, and some
+of the unshuttered windows on the second floor were broken. The only
+indications of recent occupation were a pile of kegs at the rear of the
+house and near-by a heap of freshly opened tin cans. Near one of the
+larger outbuildings, too, was a pile of chips and sawdust.
+
+"There does not seem to be any one about," whispered Jane. "What do you
+suppose they do here?"
+
+"I can't imagine yet," said Fleck with an impatient shake of his head.
+"The fact that this house is important enough for the Hoffs to visit
+once a week makes it important for us to cautiously and carefully
+investigate everything about it. It may be a secret wireless plant away
+off here in the woods where no one would think of looking for it. It
+might be a bomb factory where their chemists manufacture the bombs and
+explosives with which they are constantly trying to wreck our munition
+plants and communication lines. Perhaps it is just a rendezvous where
+their various agents, the important ones engaged in their damnable work
+of destruction, come secretly to get their orders from the Hoffs and to
+receive payment for their hellishness accomplished."
+
+"It's all so funny, so perfectly absurd," said Jane with a nervous
+little laugh.
+
+"Absurd," cried Fleck indignantly, "what do you mean? It's frightfully
+serious."
+
+"Of course, I understand," Jane hastened to say. "I was just thinking,
+though, how funny we are here in America, especially in the big cities.
+We know nothing whatever about our neighbors, about the people right
+next door to us. In one apartment we'll be doing all we can to help win
+the war, and in the apartment next door the people will be plotting and
+scheming to help Germany win, and it is only by accident we find out
+about it. Take my own father and mother. They haven't the slightest
+suspicion of the people next door. They would hardly believe me if I
+told them the Hoffs were German spies. They see them every day in the
+elevator. Young Mr. Hoff has been in our apartment several times. My
+mother has met him and talked with him. I was just thinking how amazed
+and horrified she will be when she hears about it and learns what I have
+been doing."
+
+"You are perfectly right," said Fleck soberly. "We are entirely too
+careless here in America about our acquaintances and neighbors. We know
+that we are decent and respectable, and we're apt to take it for
+granted that everybody else is. We don't mind our neighbors' business
+enough. Nobody in a New York apartment house ever bothers to know who
+his neighbors are or what their business is, so long as they present a
+respectable appearance. I know New York people who live on the same
+floor with two ex-convicts and have lived there for three years without
+suspecting it. We should have here in America some system of
+registration as they have in Germany. Tenants and travelers ought to be
+required to file reports with the police, giving their occupation and
+other details. If that plan were in use here enemy spies would lack most
+of the opportunities we have been giving them."
+
+"Yes," said Dean, "you are right. I've lived in Germany. Over there a
+crook of any sort can hardly move without the police knowing it. Their
+system certainly has its good points."
+
+"It surely has," Fleck agreed. "If the Prussians' character were only
+equal to their intelligence they would be the most wonderful people in
+the world, but they are rotten clear through. They have no conception
+of honor as we understand it. Only the other day I read of a Prussian
+officer who led his men in an attack on a chateau, guiding them by plans
+of the place he had made himself while being entertained in the chateau
+as a guest before the war."
+
+"Don't you think any of them have a sense of honor?" asked Jane in a
+troubled tone.
+
+Her mind had reverted, as she found it frequently doing, to Frederic
+Hoff and the sealed packet he had entrusted to her. He had professed to
+love her and had demanded that she trust him. Was it, she wondered, all
+a base pretense on his part? Was he--for Germany's sake--taking
+advantage of her affection for him to make her the unwitting custodian
+of some secret too perilous for him to carry about with him? Perhaps
+that little parcel she was carrying in the bosom of her gown contained
+the code he and his uncle used? Had it not been for Dean's presence she
+might have been tempted to take Fleck into her confidence and tell him
+of the peculiar incident, though in spite of all she knew about him she
+felt that Frederic Hoff's feeling for her was real, and that toward her
+he always would show only respect and honor, as he always had done
+hitherto; and yet--
+
+Before the chief had time to answer her question Dean with a whispered
+"hist" pointed to a path in the rear of the buildings they were
+watching. Behind the house two rugged hills, their sides of precipitous
+rock so steep that they hardly afforded a foothold, came down close
+together, making a V-shaped cleft through which a narrow path ran in the
+direction of the river. Looking toward this cleft to which Dean was
+pointing they now saw a group of workmen approaching the house.
+
+All of them were in the garb of mechanics, yet as they approached in
+single file down the path, the quick eye of the chief noted that they
+were keeping step.
+
+"They've all of them seen service," he muttered to himself, "either in
+prison or in the German army."
+
+Some of them carried kits of tools, and they walked with the air of
+fatigue that results from a day of hard physical work. They seemed to
+have no suspicion as yet that they were under observation, for as they
+walked they chatted among themselves, the sound of their German
+gutturals reaching the watchers, but unfortunately not distinctly enough
+to be audible. Dean was busy counting them.
+
+"There are fourteen," he announced, "two more than we were expecting to
+find here."
+
+"At what do you suppose they are working?" asked Jane curiously.
+
+"Here comes Carter," replied Fleck. "Perhaps he can tell us. His face
+shows that he has learned something."
+
+Carter, crawling rapidly but silently through the underbrush, approached
+breathlessly, his sweaty, begrimed countenance ablaze with excitement.
+
+"What's up?" asked Fleck, as soon as he was within hearing.
+
+"My God, Chief," he gasped, "they've got three big aeroplanes out there
+on a plateau overlooking the river--three of them all keyed up and ready
+to start."
+
+"Friends of the Air," muttered Fleck; "so that's what it means."
+
+"They've evidently smuggled all the material up and built the three
+planes right here," Carter went on. "I watched them putting on the
+finishing touches and testing the guy-wires. There is a machine shop,
+too, rigged up in one of those outbuildings. The thing that gets me is
+how they got the engines here. All the planes are equipped with powerful
+new engines."
+
+"If there are traitors in the army and navy, why not in the aeroplane
+factories, too?" suggested Fleck. "A spy in the shipping department
+could easily change the label on even a Liberty motor intended for one
+of Uncle Sam's flying fields. Even when it didn't turn up where and when
+it was expected, it would take government red tape three months to find
+out what had become of the missing motors."
+
+"These machines"--said Jane suddenly, "they must be the 'wonder-workers'
+old Mr. Hoff was always talking about."
+
+"And that last advertisement we read," Dean reminded them, "announced
+that the wonder-workers would be ready Friday. It looks as if we got
+here not a minute too soon."
+
+"You bet we didn't," said Carter. "Every one of those three planes is
+fairly loaded down with big bombs, scores of them."
+
+"To bomb New York," said Fleck soberly; "that's their plan. Zeppelins
+for England, big guns to shell Paris, bombs from the air for New York.
+It's part of their campaign to spread frightfulness, to terrorize the
+world. Undoubtedly that is the reason Berlin sent Frederic Hoff over
+here, to superintend the destruction of the metropolis. There have been
+whispers for months and months that the city some day was to be bombed,
+but we never were able to discover their origin."
+
+"And not a single anti-aircraft gun or anything in the whole city to
+stop them, is there?" cried Jane. "Wouldn't it be terrible?"
+
+Fleck smiled grimly.
+
+"Any foolhardy German who tries to bomb New York from the air has a big
+surprise coming to him--a lot of big surprises. The war department may
+not have been doing much advertising, but it has not been idle."
+
+"Then we have some anti-aircraft guns!" cried Jane delightedly. "I never
+heard anything about them."
+
+"That would be telling government secrets," said Fleck, smiling
+mysteriously, "but I'd just like to see them try it. I have sort of a
+notion to let them start their bombing."
+
+"Oh, no, we mustn't," Jane insisted. "We mustn't let those aeroplanes
+ever start. Can't we do something right away to cripple them?"
+
+"There's plenty of time," the chief assured her. "It is best for us to
+wait until after dark. The early morning would be ideal time for an
+aerial attack on the city, when everybody is helpless and asleep.
+There's generally a fog over the river and harbor, too, before sunrise
+at this season of the year, and that might help them to mask their
+movements. It would take an aeroplane less than an hour to reach the
+city from here, so that there is no likelihood of their starting until
+long after midnight. That gives us plenty of time, and besides we must
+wait until the Hoffs arrive."
+
+"That will make two more--sixteen of them against our nine," warned
+Dean.
+
+"We cannot help it how many of them there are," said Fleck. "It is of
+vital importance for us to know just what their plans are. It is
+unlikely that they will post guards to-night in this secluded spot,
+where they have been at work in safety for months. As soon as it is
+dark we can smash the aeroplanes."
+
+"That will be easy," said Carter. "I know something about aeroplanes.
+Cut a couple of wires, and they are out of business. Sills, one of my
+men, is posted on bombs, and he'll know just how to fix the fuses to
+render them useless."
+
+"What's more," said Fleck, "if I understand German thoroughness, they
+will go over their final plans in detail to make sure that everything is
+understood. The darkness will let us slip up closer to the house, and we
+may be able to overhear what they say. Don't forget, too, that our main
+job is to catch the Hoffs red-handed."
+
+"That's right," said Dean. "They are the brains of the plot. These other
+fellows are just workmen taking orders."
+
+"I'm puzzled," said Fleck, "to know what they plan to do with the
+aeroplanes after the bombing has taken place. There is not one chance in
+a thousand of their being able to return here in safety without
+discovery. It will be sure death for the aviators that take up those
+machines."
+
+"Sure death!"
+
+With a shudder Jane recalled what Frederic had said to her only a few
+hours ago as they parted--that he was going away and might never return.
+Was this what he had meant? Was he, Frederic, to be one of the foolhardy
+three who proposed to forfeit their lives in this desperate attempt to
+deal destruction from the air on a sleeping city, to wreck innocent
+homes, to cripple and maim and destroy helpless babies and women? She
+could not, would not believe it of him. That he had the courage and
+daring to undertake such a perilous task she did not doubt. She
+realized, too, that the controlling motive of all his actions was his
+high sense of duty toward his country, and yet in spite of all that she
+had learned about the plots in which she was enmeshed, her heart refused
+to believe that he ever could bring himself to participate in such
+wanton frightfulness. She recalled the spirit of mercy that he had shown
+toward herself and Thomas Dean after the accident as contrasted with the
+brutal indifference of his uncle. She kept hoping against hope that
+something might happen to prevent his arriving here. Devoutly she wished
+that she might awake and find that it was all a terrible mistake, a
+hideous unreality, and that the "Friends of the Air" were not in any way
+associated with the Hoffs.
+
+Yet her reason told her it must all be true, terribly, infamously true,
+and that he was one of them, perhaps the leader of them.
+
+One by one the members of the various scouting parties had come creeping
+in through the forest. All of them verified what Carter had already
+reported. One man, more venturesome than the others, had even dared to
+creep close up to the rear of the house and had seen through the window
+the workmen, gathered about their supper of beer and sausages, toasting
+the Kaiser with the unanimity of a set formality.
+
+As the light waned, secured from observation by the undergrowth between
+their position and the house, they sat there discussing plans of action,
+selecting while the light still permitted the most advantageous posts
+from which they could make a concerted rush on the plotters. Fleck was
+insistent that they should do nothing to betray their presence until
+after the Hoffs had arrived, and Dean once more voiced his protest
+against Jane taking part in the attack. "I will be of far more use than
+you with your crippled arm," she resentfully insisted. "I can handle a
+revolver as well as any man, and a rifle, too, if necessary."
+
+"Dean is right," Fleck decided. "It is no work for a woman. Here is an
+automatic, Miss Strong. You will stay here until after we have rounded
+them up. If we get the worst of it, which is not likely to happen, make
+your way to the automobile and telephone the commandant at West Point."
+
+Reluctantly Jane assented. She realized that further protest was
+useless. Fleck was in command, and his orders must be obeyed
+unquestioningly if their plans for the capture of the plotters were to
+be successfully carried out.
+
+Presently they heard in the distance the sound of an automobile
+approaching, and soon they could distinguish its lights as it negotiated
+the rough, winding woodland road that led to the house. A toot from the
+horn as it arrived brought the men within the house tumbling out the
+front door with huzzas of greeting for their leaders, and Fleck observed
+that all the men as they came out automatically raised their hands
+in salute.
+
+"Ex-German soldiers, every one of them," he muttered.
+
+As the Hoffs got out of the car a shaft of light from the opened front
+door threw the figures of the new arrivals into sharp relief, and Jane
+saw, with a shudder of terror, that Frederic was dressed in an aviator's
+costume. There was no longer any doubt left in her mind that he was one
+of those going to certain death, and a dry sob choked her.
+
+The Hoffs passed within the house, and the door was closed.
+
+"Now," cried Fleck, "to your stations, men. Each of you take a rifle.
+You stay here, Miss Strong. Come on, Carter."
+
+
+
+CHAPTER XVI
+
+THE ATTACK ON THE HOUSE
+
+In accordance with instructions already issued two of Fleck's men rushed
+for the front of the house, where with rifles ready they stood guard,
+while the others took cover in the shadow of one of the outbuildings a
+few feet distant from the rear entrance.
+
+Apparently the plotters had been so long undisturbed in their mountain
+fastness that they had ceased to take even the most ordinary precautions
+against surprise. So far as could be discovered they had posted no
+guards over the aeroplanes and their deadly cargo, nor at either of the
+two doors to the main building. Nevertheless Fleck, as he crept
+stealthily up to the building with Carter at his side, took out his
+automatic and held it in readiness, and Carter followed his example.
+
+There was no moon to reveal their movements as they approached the rear
+of the house. The evening was warm, and one of the windows had been left
+open. Noiselessly they crept up to it and looked within. It opened into
+a large room used as a dining hall, where they could see all of the men
+clustered about one of the tables, at the head of which sat old Otto
+Hoff with Frederic at his side. On the table before him was what
+appeared to be a rough map or blueprint. Frederic and five of the other
+men, Fleck observed, now wore aviation costumes.
+
+"Comrades," old Otto was saying in German, "here is the course. You will
+have no difficulty in following it. Down the river straight till you see
+the lights of New York. You each understand what you are then to
+do, yes?"
+
+"Certainly," three of the men, the pilots evidently, responded.
+
+"Let us, to make sure," old Otto insisted, "once more rehearse it. Much
+there is at stake for the Fatherland. You, Anton and Fritz, will blow up
+the transports and the warships that guard them. Six great transports
+are lying there, ready to sail at daylight The troops went aboard
+to-night. We waited until it was signalled that it was so. You must not
+fail. The biggest of those transports once belonged to Germany. You must
+teach these boastful Americans their lesson. That one boat you must
+destroy for certain. Beside the transports to-night lie five vessels of
+war, two battleships, three cruisers. Them you must destroy also, if
+there is time. To each transport, two bombs, to each warship, two
+bombs--twenty you carry. If all goes well, two you will have left. With
+these do what you will, a house, a church, it matters not--anything to
+spread the terror of Germany in the hearts of these money-grabbing
+Americans."
+
+"It will be done," said Anton solemnly.
+
+"I have thrown bombs before. You can trust me," said Fritz.
+
+"You, Hans and Albert," old Otto went on, "will fly over the city at
+good height. When you reach the end of the island you turn to the left,
+so, and come down close that your aim may not miss. Here will be the
+Brooklyn Navy Yard,"--he indicated a place on the map. "If there is fog
+the bridges will locate it for you. Smash the ship lying there, the
+shops, the dry docks; if it is possible blow up the munitions
+stored there."
+
+"I know the place well," Hans replied. "I worked there many months. I
+can find my way in the dark. It will be done."
+
+"And to you, Herr Captain," said Otto, turning to Frederic and saluting,
+"to you, whom the War Office itself sent here to oversee this
+all-wonderful plan of mine which it has seen fit to approve, to you and
+your mate falls the greatest honor and glory. You--"
+
+A suppressed sob at his side caused Fleck to turn quickly and lay his
+finger on the trigger of his revolver. There, close beside him,
+listening to all that had been said, was Jane. Left alone in the
+darkness she had found it impossible to obey the chief's orders and
+remain where she was. Every little sound about her had carried new
+terrors to her heart. Hitherto she had not felt afraid, but the solitude
+filled her mind with wild imaginings. She was seized, too, by an
+irresistible desire to know what part Frederic was playing in this drama
+of the dark. Was his life in peril? Were Fleck and Carter now gathering
+evidence that would bring about his conviction, perhaps his shameful
+death? She must know what was happening. Quietly she had stolen up to
+peer through the window.
+
+Fleck, as he recognized her, with an angry gesture of warning to be
+silent, turned back to hear what Otto was saying.
+
+"--you, Frederic, have the glory of leading the expedition, of bombing
+that damned Wall Street which alone has kept Germany from winning her
+well-deserved victory. You will destroy their foolish skyscrapers, their
+banks, their business buildings. Your work will end this way. You will
+strike terror into the cowardly hearts of these American bankers whose
+greed for money has led them to interfere with our great nation's
+rightful ambition. You shall show them that their ocean is no
+protection, that the iron hand of our Kaiser is far-reaching. Do your
+work well, and they will be on their knees begging us for peace."
+
+"God helping me," said Frederic, "I will not fail in my duty to my
+country."
+
+There was something magnificent in his manner as he spoke, something
+almost regal, and Fleck regarded him with a puzzled air. Who was he,
+this man who had been sent out from Germany on this mission--this man to
+whom even old Otto paid deference? Despite the assurance with which he
+had spoken Fleck had observed in Frederic an uneasiness, a watchfulness,
+that none of the others seemed to exhibit. He had the appearance of
+alertly listening, listening, for what? Fleck's first thought was that
+he might have overheard the little cry that Jane had inadvertently
+given, but he quickly dismissed this theory. If Frederic had heard that
+sound it would have alarmed him, and the look in his eyes now was one of
+expectancy rather than of fear.
+
+Jane, too, was puzzled and distressed. With trembling hands she clutched
+at the sill of the window for support as she heard Frederic assent to
+old Otto's plans for him. Her estimate of his character made it seem
+incredible that he would willingly lend himself to this work of
+wholesale murder, yet she could no longer doubt the evidence of her own
+ears. With overwhelming force it came to her that this man who so
+readily agreed to such bloody, dastardly work as this, must undoubtedly
+be also the murderer of that K-19 whose body had been found just around
+the corner from her home. Bitterly she reproached herself that she had
+allowed herself to care for him. Shamedly she confessed to herself that
+she still loved him--even now.
+
+"Your great work accomplished," Otto continued, "remember your orders.
+Forty miles due east of Sandy Hook there will be lying two great
+submarines, waiting to take you off--not U-boats, but two of our
+powerful, wonderful new X-boats, big enough to destroy any of their
+little cruisers that are patrolling the coast, fast enough to escape any
+of their torpedo boats. How important the war office judges your work
+you may realize from this--it is the first mission on which these new
+X-boats have been dispatched. They are out there now. We have had a
+wireless from them. They are waiting to convey six heroes back to the
+Fatherland, where the highest honors will be bestowed on them at the
+hands of our Emperor himself. Herr Captain and Comrades--"
+
+He stopped abruptly, and there came into his face a pained look of
+surprise, of terror.
+
+_"Was is dass?_" he cried in alarm.
+
+One of Fleck's men in hiding out there in the shadow of the building
+had been seized by an irresistible desire to sneeze.
+
+The terrifying suspicion that there had been some uninvited spectator
+outside, listening to their plotting, swept over the whole room. The
+whole company, hearing the sound that had alarmed old Hoff, arose as one
+man and stood tensed, stupefied with fear, gazing white-faced in the
+direction from which the sound had come.
+
+Fleck, rudely brushing Jane aside, dropped back from the window and blew
+a sharp blast with a whistle. At the sound his men came running up with
+their rifles ready.
+
+Inside, the man called Hans, seizing an electric torch, dashed to the
+door, and pulling it wide, rushed forth, his torch lighting the way
+before him. Before he even had time to see the men gathering there and
+cry an alarm, a blow from the butt of Carter's revolver stretched him
+senseless on the stoop.
+
+"In the name of the United States I command you to surrender," cried
+Fleck, springing boldly into the open doorway, revolver in hand; "the
+house is surrounded."
+
+Instantly all within the room was confusion. Some of those nearest the
+door, seeing behind Fleck the protruding muzzles of the guns, promptly
+threw up their hands in token of surrender. Others bolted madly for the
+front door, only to find their egress there blocked by the rifles in the
+hands of the guard that Fleck had had the foresight to station there.
+
+Old Otto, the pallor of fear on his face giving away to an expression of
+demoniac rage, drew a revolver and aimed it straight at Fleck. Jane, who
+unbidden had followed the raiders as they entered and now was standing
+wide-eyed in the doorway watching the spectacle, was the only one to see
+that just as old Otto pulled the trigger his nephew, whether by accident
+or design, she could not tell, jostled his arm, sending the bullet wide
+of its mark.
+
+"Come on, men," cried Fleck, advancing boldly into the room.
+
+Eight of the Germans, piteously bleating "Kamerad" stood against the
+wall near the door, their hands stretched high above their heads.
+
+"Guard these men, Dean," cried Fleck, as with Carter close at his side
+he dashed into the fray.
+
+One man already lay senseless outside, eight had surrendered. Four had
+fled to the front of the house. That left only the two Hoffs and one
+other man against five of them. It was Fleck's intention to try to
+overpower the trio before the four who had fled returned to aid them.
+Jane, amazed at her own coolness, stood beside Dean, her revolver out,
+helping him guard the prisoners.
+
+Frederic all the while had been standing by his uncle's side, strangely
+enough appearing to take little interest or part in the battle. Old
+Otto, though, despite his years, was fighting with vigor enough to
+require both the work of Fleck and Carter to subdue him. Vainly he
+struggled to wrench himself free from their grasp and use his revolver
+again. Fleck's strength pulling loose his fingers from the weapon was
+too much for him. As he felt himself being disarmed, in a frenzy he tore
+himself loose from both of them and seizing a chair, swung it with all
+his strength against the hanging lamp above the table that supplied the
+only light in the room.
+
+In an instant the room was in darkness. The four from the front, rushing
+back to aid their comrades in answer to old Otto's cries, found
+themselves unable to distinguish friend from foe. Fleck's men dared not
+use their weapons in the darkness. Back and forth through the room the
+opposing forces struggled, the air thick with cries and muttered oaths,
+the sound of blows making strange medley with the rapid shuffling
+of feet.
+
+Jane, remembering the electric torch that had been carried by the man
+Carter had struck down, felt her way to the door and retrieved it from
+his senseless fingers. Returning, she flashed it about the room,
+endeavoring to assist Fleck by its light. As she let the beam fall on
+Frederic she heard a muttered curse at her side and turned to see Thomas
+Dean aiming his revolver directly at the younger Hoff. With a quick
+movement she thrust up his arm, and the bullet buried itself in the wall
+above his head.
+
+"What are you trying to do," snapped Dean; "help that damned spy to
+escape?"
+
+"He wasn't trying to escape," she angrily retorted. "Look--quick--mind
+your prisoners."
+
+He turned just in time to see the Germans behind him lowering their
+arms. In another second they would have been on his back. At the sight
+of his brandished revolver, their arms were quickly raised again.
+
+Meanwhile Fleck's men, guided by Jane's light, were laying about them
+with their rifles clubbed. The plotters were at a disadvantage in not
+realizing how few there were in the attacking party. Fleck's
+announcement that the house was surrounded had both deceived and
+disheartened them. When three of their number had been knocked senseless
+to the floor the others surrendered and joined the group that stood
+with hands up.
+
+To Fleck's amazement it was Frederic Hoff who led in the surrender.
+
+"Watch that young Hoff," he whispered to Carter. "I can't understand his
+giving up so easily. It may be only a ruse on his part."
+
+"Perhaps he's afraid the girl will be hurt," whispered Carter, but Fleck
+was not there to hear him, having dashed forward to where old Otto was
+still fighting desperately.
+
+Somehow in the melee the old man had again got hold of a revolver, and
+just as Fleck seized him he fired again. The bullet, aimed at Fleck,
+left him unharmed, but found a mark in Thomas Dean, who with a little
+gurgling cry, fell forward at Jane's feet. Carter turned at once to
+guard the prisoners, as Fleck, with a cry of rage, felled old Hoff to
+the floor, harmless for the present at least.
+
+Sending one of his men to the other rooms in search of lamps Fleck soon
+had all the prisoners safely shackled, both hand and foot, none of them
+offering any resistance. Investigation showed that old Hoff in falling
+had struck his head in such a way that his neck was broken, killing him
+instantly. The three who had been clubbed were not seriously injured,
+and as soon as they revived were shackled as the others had been.
+
+Jane, seeing Dean collapse, had turned to aid him and for some time had
+been bending over him, trying to revive him. He had opened his eyes,
+looked up into her face and had tried to say something, and then had
+collapsed, dying right before her eyes.
+
+"Take the Hoffs' car outside," Fleck directed some of his men, "and
+bring up our two cars at once. Carter and I'll guard the prisoners until
+you get back. There's a county jail only a few miles away. The sooner we
+get them there the better it will be. It won't take any court long to
+settle their fate. They got Dean, didn't they?"
+
+"Yes," said Jane, getting up unsteadily from the floor, "I think he's
+dead."
+
+Fleck bent to examine the body of his aide, feeling for the pulse.
+
+"Too bad," he murmured. "That last bullet of old Hoff's got him, but he
+died in a good cause."
+
+Jane, brushing away the tears that came welling unbidden into her eyes,
+turned now for the first time since his surrender to look at Frederic.
+
+She had expected as she looked at him lying there shackled on the floor
+to read in his expression humiliation at his plight, grief at the
+failure of his effort to aid Germany, possibly reproach for her in
+having aided in entrapping him. To her amazement there was nothing of
+this in his face.
+
+As he lay there on the floor he was observing her with a tender look of
+love, and in his eyes what was still more puzzling was an unmistakable
+expression of triumph and happiness.
+
+
+
+CHAPTER XVII
+
+SOMETHING UNEXPECTED
+
+Bewildered by the rapidity with which such a succession of terrifying
+events had taken place, Jane sank dazedly into a chair, trying her best
+to collect her thoughts, as she looked about on the recent scene of
+battle. All of the German plotters had been overcome and captured.
+There, dead on the floor, lay the arch conspirator, old Otto Hoff, his
+clammy face still twisted into a savage expression of malignant,
+defiant hate.
+
+And there, too, a martyr to the country's cause, lay Thomas Dean. A sob
+of pity rose in Jane's throat as she thought of him, and the great tears
+rolled unchecked down her cheeks. He was so young, so brave, so fine.
+Why must Death have come to him when there was yet so much he might have
+done? With his talent and education, with his wonderful spirit of
+self-sacrifice, he might have gone far and high. Regretfully, she
+recalled that he had loved her, and with kind pity in her heart she
+reproached herself for not having been able to return to this fine,
+clean, American youth the affection she had inspired in him.
+
+Thomas Dean, she told herself, was the type of man she should have
+loved, a man of her own people, with her own ideals, a man of her
+country, her flag, and yet--
+
+There on the floor, not a dozen feet away from her, shameful circlets of
+steel girdling both his wrists and his ankles, lay the one man for whom
+she knew now she cared the most in all the world, the man she had just
+betrayed into Chief Fleck's hands.
+
+Bitterly she reproached herself for not having tried to induce Frederic
+to escape. In mental anguish she pictured him--the man she
+loved--standing in the prisoner's dock in some courtroom, branded as a
+spy, as a leader of spies, charged with an attempt to slaughter the
+inhabitants--the women and children--of a sleeping, unprotected city.
+With growing horror it came to her that in all probability she herself
+would be called on to testify against him. It might even be her
+evidence that would result in his being led out before a firing squad
+and put to an ignominious death.
+
+She dared not even look in his direction now. What must he be thinking
+about her? He had known that she loved him. In despair and doubt she
+wondered whether he could understand that she, too, had been influenced
+to perform her soul-wracking task by a sense of honor, of duty to her
+country equally as potent as that which had impelled him to participate
+in this terrible plan to destroy New York. Why had she not informed him
+that his plans were known to the United States Government's agents?
+Surely she could have convinced him that his was a hopeless mission. The
+plot would have been successfully thwarted, and he would not be lying
+there in shackles, but, even though forced to flee, who knew, perhaps
+some day after peace had come, he might have been able to return for
+her. A great sob rose from her heart, but she stifled it back. She would
+be brave and true. She must be glad for those of her people that had
+been saved.
+
+But her parents! What would they say? Her father and mother soon now
+must learn that she had been deceiving them day after day. How horrified
+and amazed they would be to learn that the chauffeur she had brought
+into the household was in reality a government detective, and that she,
+their daughter, had been a witness of his tragic death. What would they
+think when they learned about her part in this gruesome drama that had
+just been enacted? They, serene in their trust in her, supposing she was
+at the home of one of her girl friends, were peacefully asleep in their
+quiet apartment. How horror-stricken her mother would be if she could
+have seen her daughter at this moment, alone at midnight in a mountain
+shack, one girl among a band of strange men--and two men stretched dead
+on the floor.
+
+And Frederic! Always her perturbed imaginings led back to Frederic, to
+the terrible fate that lay in store for him, to the awfulness of war
+that had put between them an impassable gulf of blood and guilt and
+treachery that, in spite of their love for each other, kept them at
+cross purposes and made them enemies. Why, she vaguely wondered, must
+governments disagree and start wars and make men hate and kill each
+other? What was it all for?
+
+In the midst of her mental wanderings she became conscious that Fleck
+was speaking to Carter.
+
+"I'll stay here with Miss Strong and the prisoners," he was saying.
+"While we are waiting for the men to return with the cars, you'd better
+make a search of the house."
+
+"Why not wait until daylight for that?" suggested Carter.
+
+"It is not safe," the chief objected. "To-night is the time to do it. A
+plot important enough to have the especial attention of the war office
+in Berlin must have many important persons involved in it. Somebody with
+money in New York, some influential German sympathizer, must have helped
+old Hoff set up these aeroplanes here and equip his shop. Some chemical
+plant supplied the material for those bombs. It must have taken hundreds
+of thousands of dollars to carry the plan to completion. Men rich enough
+and powerful enough to have put through this plot are powerful enough to
+be still dangerous. The minute word reaches the city that the plan has
+miscarried there will be some one up here posthaste to destroy or remove
+any damaging evidence we may have overlooked. Now is the time to do our
+searching."
+
+"You're right, Chief," Carter admitted. "It would not surprise me if
+there is not a wireless plant here. I'll soon find out."
+
+"Let me help," cried Jane.
+
+Her nerves were suffering from a sharp reaction. All through the
+excitement of the attack she had remained calm and collected, but now
+she felt that if she remained another minute in the same room with the
+two bodies, if she stayed near that row of shackled prisoners, if she
+should chance to catch Frederic's eye, she either would burst into
+hysterical weeping or would collapse entirely. If only there was some
+activity in which she could engage it might serve to divert the current
+of maddening thoughts that kept overwhelming her. With something to do
+she might regain her self-control.
+
+"Please let me help Mr. Carter," she begged.
+
+"Certainly," said Fleck, "go ahead. You have earned the right to do
+anything you wish to-night."
+
+Guided by the light of an electric torch Carter and she quickly made
+their way to the upper floor. In most of the rooms they found only cheap
+cots with blankets, evidently the sleeping quarters of the workmen, but
+in one of the rooms was a desk, and from it a ladder led to an
+unfinished attic. Boldly climbing the ladder and flashing their torch
+about they quickly located a high-powered wireless outfit. It was
+mounted on a sliding shelf by which it could be quickly concealed in a
+secret cupboard, but evidently the plotters had felt so secure from
+intrusion in their retreat that they had been in the habit of leaving
+it exposed.
+
+"I thought we'd find it," said Carter exultantly. "It's an ideal
+location, up here in the mountains. I'd better smash it at once."
+
+"Wait," warned Jane, thoughtfully, "they spoke of having received a
+wireless message from those dreadful X-boats lying there off the coast.
+If we could only find their code-book, perhaps--"
+
+"Right," cried Carter, catching her idea at once.
+
+Together they descended to the room below and began ransacking the
+desk, Jane holding the light while Carter examined the papers
+they found.
+
+"Their system sometimes is bad for them," said Carter. "Here's a ledger
+with the names of all the men employed here and the amounts paid to
+each. And look," he went on excitedly, "look what the stupid fools have
+done with their German methodicalness--here are entries showing all the
+supplies they obtained, from whom they got them and what they cost.
+There's evidence here for a hundred convictions. We'll just take that
+book along."
+
+There was one small drawer in the desk that was locked. Ruthlessly
+Carter smashed the woodwork and pried it open. Its only contents was a
+small parcel, a folded paper in a parchment envelope. Hastily he drew
+forth the paper and studied it intently.
+
+"It's a code," he cried, "a naval code, evidently the very one they used
+to communicate with those boats. I'll wager the Washington people even
+haven't a copy of it. That's a great find. Come on, we've got enough for
+one night."
+
+"Do any of the men in our party understand wireless?" asked Jane as
+they descended.
+
+"Sure," said Carter, "Sills does. He used to be the radio man on a
+battleship."
+
+"Couldn't he be left on watch here?" suggested Jane, "and try to signal
+those X-boats and keep them waiting until to-morrow night? Maybe by that
+time our--"
+
+"I get you," cried Carter; "that's a good idea. Explain it to the
+Chief."
+
+As Jane unfolded her plan, suggesting the possibility of sending
+American cruisers out to search for the X-boats after Sills had lured
+them by false messages to the surface, Fleck heartily approved of it.
+
+"I'll leave Sills here with one other man to guard the house," he said.
+"We'll have to let poor Dean's body remain here for the present, too.
+We'll need all the room in the cars for the prisoners."
+
+There was still much to be done. While some of the men were
+unceremoniously carrying out the shackled prisoners and piling them in
+the cars, others, under Carter's direction, crippled the three
+"wonder-workers" and dismantled them, carrying their dangerous cargo of
+bombs into the woods and concealing them.
+
+None of the prisoners, since the moment the shackles had been put on,
+had uttered a word. Sullen silence held all of them unprotestingly in
+its grip. Even Frederic kept his peace, though from time to time his
+glance roved about, seeking Jane, and always in his eyes was a strange
+look, not of defeat, nor of shame, but rather of exultant triumph. Jane
+still dared not trust herself to look in his direction, but Fleck and
+Carter, too, observed curiously the expression in his eyes. Was he, they
+wondered, rejoicing over Dean's untimely end? Did he, with true Prussian
+arrogance, in spite of the failure of his plot, still dare to hope that
+with Dean out of the way, he might escape punishment and yet win Jane
+Strong? Even as they picked him up, the last of the prisoners, and put
+him in the rear seat of the chief's car, his eyes still sought for Jane.
+
+It was long after midnight before the strange cavalcade left the
+mountain shack. Fleck's car led the way, with the chief himself at the
+wheel, and Jane beside him. Crowded on the rear seat were Frederic and
+two other prisoners, and standing in the tonneau, facing them with his
+revolver drawn in case they should make an attempt to escape in spite of
+their shackles, was Fleck's chauffeur. Carter was at the wheel of the
+second car with five prisoners and a man on guard, and the arrangement
+in the third car was the same. Six men and a girl to transport thirteen
+prisoners! Inwardly Fleck was congratulating himself on his forethought
+in having provided shackles enough to go around, for otherwise he surely
+would have had a perilous job on his hands.
+
+As they rode down the mountain lane, Jane rejoiced at the darkness that
+hid her face, both from Fleck and from Frederic on the seat behind. Now
+that there was no activity to distract her maddening thoughts once more
+paced in turmoil through her brain. She loved this man, and she was
+leading him to disgrace and death. She hated and despised him. He was a
+treacherous, dangerous enemy of her country whom she had helped to trap,
+and she was glad, glad, glad. No, no! She wasn't glad. She loved him. He
+had given her that sealed packet and had charged her to keep it for
+him. He couldn't be all bad. Why must she love him? Her mind told her he
+was a criminal, an enemy, a spy, a murderer, yet her wilful heart
+insisted that she loved him. How strange life was! She and Frederic
+loved each other. Why could they not marry and be happy? Why was War?
+Why must nations fight? Why must people hate each other? Was the whole
+world mad? Was she going mad herself?
+
+Slowly and carefully, Fleck, with his lights on full, had steered the
+automobile down the narrow roadway through the woods. He had just turned
+the car safely into the main road, and stopped to look back to see how
+closely the other cars were following. Suddenly from the wayside a dozen
+men in uniform sprang up, the glint of their guns made visible by the
+automobile lights.
+
+"Halt," cried a voice of authority.
+
+The one glimpse he had caught of the uniform had conveyed to Fleck the
+welcome fact that the party surrounding him were Americans--cavalry
+troopers.
+
+"Chief Fleck," he announced, by way of identification. "Who are you?"
+
+A tall figure in officer's clothes sprang up on the running board and
+peered into Fleck's face.
+
+"Thank God, Chief," he said, "that it's you."
+
+"Colonel Brook-White," cried Fleck in amazement, recognizing the voice
+as that of one of the officers in charge of the British Government's
+Intelligence Service in America. "What are you doing here?"
+
+"Trying to round up some bally German spies," explained Brook-White.
+
+"I've beaten you to it," cried Fleck, with a note of triumph in his
+tone. "I've got them all here in shackles."
+
+"Good," said Brook-White delightedly. "I was fearful I'd be too late.
+There was delay in getting a message to me. As soon as I had it, I tried
+to reach you and couldn't. I dared not wait but dashed up here in my
+car. I knew there were some American troopers camped near here, and I
+persuaded the commander to detail some of his men to help me. Did you
+really capture the Hoff chap, old Otto?"
+
+"He's better than captured," said Fleck. "He's lying dead back there in
+the house."
+
+"Good," cried Brook-White. "He was infernally dangerous according to my
+advices--but Captain Seymour--where is he? Wasn't he working with you?"
+
+"Captain Seymour?" cried Fleck in astonishment. "I never heard of him.
+Who's Captain Seymour?"
+
+"He's one of my chaps," explained Brook-White. "Wasn't it he who steered
+you up here?"
+
+"I should say not," said Fleck emphatically.
+
+"Good Lord," cried the British colonel excitedly. "You don't suppose
+those bloody Boches got him at the last--after all he's been through? I
+hope he's safe."
+
+"Don't worry, Colonel Brook-White," came the calm voice of Frederic Hoff
+from the rear seat. "Chief Fleck has me here safe in shackles with the
+other prisoners."
+
+"God," cried Fleck, in astonished perplexity. "Is Frederic Hoff a
+Britisher--one of your men?"
+
+"Rather," said Brook-White. "Chief Fleck, may I present Captain Sir
+Frederic Seymour, of the Royal Kentish Dragoons."
+
+But Fleck was too busy just then to heed the introduction, or to pay
+attention to the muttered "_Donnerwetters_" of indignation that burst
+from the lips of his other prisoners.
+
+Jane Strong had fainted dead away against his shoulder.
+
+
+
+CHAPTER XVIII
+
+WHAT THE PACKET CONTAINED
+
+"But," said Jane, "I can't understand it yet. How did you, a British
+officer, happen to be living with old Otto Hoff? How did you ever get
+him to trust you with his terrible secrets?"
+
+Captain Seymour chortled gleefully. Now that he was arrayed in proper
+British clothes, once more comfortable in the uniform of his regiment
+and had his monocle in place and was with Jane again, everything looked
+radiantly different. Even his speech no longer retained its
+international quality but now was tinctured with London mannerisms.
+
+"Oh, I say," he replied, "that was a ripping joke on the bally
+Dutchmen."
+
+Jane eyed him uncertainly. He seemed almost like a stranger to her in
+this unfamiliar guise, though for hours she had been eagerly looking
+forward to his coming.
+
+The exciting developments of the night before still were to her very
+puzzling. She recalled Frederic's identification of himself, and after
+that all was blank. When she had come to she had found herself in a
+motor being rapidly driven toward New York in the early dawn, with
+Carter as her escort. He had not been inclined to be at all
+communicative.
+
+"Let the Captain tell you the story himself," said Carter. "He knows all
+the details."
+
+"But when can I see him?" questioned Jane. "When," she hesitated,
+remembering the shameful bonds that had held him, "when will he
+be free?"
+
+"He's as free this minute as we are," Carter explained. "It didn't take
+the Chief long to get the bracelets off, after Colonel Brook-White had
+identified him. There's a lot for the Captain to do still, but rest
+assured, he'll waste no time getting back to the city to see you."
+
+"I hope not," sighed the girl.
+
+She was too weary, too weak from the revulsion of feeling that had come
+on learning that her lover instead of being a dastardly spy was a
+wonderful hero, to make even a pretense at maidenly modesty. She wanted
+to see Frederic too much to care what any one thought.
+
+Slipping into her home fortunately without arousing any of her family,
+she had gone to bed with the intention of getting a rest of an hour or
+two. Sleep, she was sure, would be impossible, for she felt far too
+excited and upset. Yet she had not realized how utterly exhausted she
+was. Hardly had her head touched the pillow before she was lost to
+everything, and it was long after noon when a maid aroused her to
+announce that Captain Seymour had 'phoned that he would call at three.
+
+As she dressed to receive him, she was wondering how she should greet
+him. Blushingly she recalled the impassioned kiss he had pressed on her
+lips--why it was only yesterday. It had seemed ages and ages ago, so
+much had intervened. Mingled with a shyness that arose from her vivid
+memories was also a shade of indignation. Why had he not told her? Did
+he not trust her? She resolved to punish him for not taking her into his
+confidence by an air of coldness toward him. Certainly he deserved it.
+
+Yet, when he arrived, so full of animation did he appear to be, that
+the lofty manner in which she greeted him apparently went unnoticed. He
+met her with a warm handclasp and anxious inquiries about how she felt
+after all the exciting events. Too filled with eagerness to know all the
+details of his adventures she had found it difficult to maintain her
+pose, and soon was seated cosily beside him, asking him question after
+question, all the while furtively studying him in his proper rle. As
+Frederic Hoff she had thought him wonderfully handsome and masterful. As
+Captain Sir Frederic Seymour, in his regimental finery, he was simply
+irresistible.
+
+"A joke?" she repeated. "Do explain, I'm dying to know all about it."
+
+"It wasn't half as difficult a job as one might imagine, you know. Our
+censor chaps at home have got to be quite expert at reading letters,
+invisible ink and all that sort of thing. Hoff for months had been
+sending cipher messages to the war office in Berlin. He kept urging them
+to act on his all-wonderful plan for blowing up New York. They decided
+finally to try it and notified old Otto they were sending over an
+officer to supervise the job."
+
+"What became of him? The officer they sent over?"
+
+"Our people picked him off a Scandinavian boat and locked him up. They
+took his papers and turned them over to me. Clever, wasn't it?"
+
+"And you took his name and his papers and came here in his place? Oh,
+that was a brave, brave thing to do."
+
+"I wouldn't say that," said Seymour modestly. "I fancy I look a bit like
+the chap, and I speak the language perfectly."
+
+"But it was such a terrible risk to take," cried Jane with a shudder.
+"Suppose they'd found you out?"
+
+"No danger of that," laughed Frederic. "Old Otto never had seen the chap
+who was coming. His real nephew, Frederic Hoff, whose American birth
+certificate was used, died years ago. Besides I had the German officer's
+papers and knew just what his instructions were. The worst of it was
+when old Otto insisted every night on toasting the Kaiser, and when he
+kept trying to get me mixed up in his dirty schemes. I had to go
+through with the former once in a while, but on the latter, I--how do
+you Americans say it--just stalled along. My orders were to land him
+only on the big thing--his wonder-workers."
+
+"But how did you explain to him that British uniform?"
+
+"Now that was really an idea. The old fellow was getting a bit cross and
+suspicious with me because he thought I wasn't doing enough while they
+were getting his 'wonder-workers' ready. At one time he was so
+distrustful of me that he had me followed."
+
+"Oh, yes, I know," said Jane quickly. With a thrill she remembered the
+scene she had witnessed from her window the night K-19, her predecessor
+on Chief Fleck's staff, had been murdered. In her relief at discovering
+that Frederic was no German spy, she had forgotten that for weeks and
+weeks she had all but believed him guilty of murder. Now, something told
+her, surely and confidently, that he could explain it all.
+
+"I saw you from my window one night before I met you," she went on. "A
+man was following you, and you chased him around the corner."
+
+"I remember that," he said; "the poor chap was found dead the next
+morning. Old Otto killed him. The man had been following me, and I had
+imagined that he was one of old Otto's spies and knocked him down. I
+couldn't find anything on him to indicate who he was, so just as he was
+beginning to revive I left him and came on home. It seems old Otto had
+been watching him trail me. He followed along and shot the man. He
+gleefully told me about it the next day, the hound. I ought to have
+given him over to the police, but that would have upset our plans."
+
+"I see," said Jane; "what about Lieutenant Kramer? Was he working with
+old Mr. Hoff?"
+
+"That's the funny part of it. Here in this country you've got so many
+kinds of secret agents they're always trampling on each others' toes.
+There's your treasury agents, and your Department of Justice agents, and
+your army intelligence men and your naval intelligence men--nine
+different sets of investigators you've got, counting the volunteers, so
+some one told me, and each lot trying to make a record for itself and
+not taking the others into its confidence. Rather stupid I call it."
+
+"I should say so," agreed Jane.
+
+"Here was I watching old Hoff for our government, and Kramer watching me
+for your navy and Fleck watching both of us. It was a funny jumble."
+
+"But about that uniform?" Jane persisted.
+
+"When the old man got to ragging me a bit, I felt I must do something to
+convince him I was all right. I suggested trying to get a British
+uniform and maybe learning thereby some secrets. It delighted him
+hugely. Of course I just went down to Colonel Brook-White and got my own
+uniform, and that was all there was to that."
+
+"It puzzled Mr. Carter, though, how you got it in and out of the house.
+He used to open every bundle that came for Mr. Hoff."
+
+Sir Frederic laughed delightedly.
+
+"I had a messenger who used to bring it back and forth in a big lady's
+hat-box. It always was addressed to you, my dear, but the boy had
+instructions to deliver it to me."
+
+"Humph," snapped Jane with mock indignation. "And when did you first
+find out that I was helping Chief Fleck watch you?"
+
+"I suspected it from the start. Kramer told me how you'd become
+acquainted with him. Then when I heard you 'phoning Carter about the
+bookstore I knew for certain."
+
+"Oh, that's one thing now I wanted to ask about--those messages Hoff
+left in the bookstore. Who were they for?"
+
+"Instructions to a German advertising agency on how to word some
+advertisements that contained a code."
+
+"Oh, those Dento advertisements?"
+
+"You knew about them?" cried Seymour in astonishment.
+
+"Of course," said Jane proudly. "I was the one who deciphered them; but
+what did that girl do with those messages? Carter had a theory that she
+slipped them under a dachshund's collar."
+
+"That theory's just like Carter," laughed Frederic--"regular detective
+stuff. I never heard of any dachshund's being used. The girl used to
+slip them into a letter box in her apartment-house hallway. Two minutes
+later a man would get them and carry them to their destination."
+
+"The traitors in our navy--the men who signalled old Otto and Lena Kraus
+about the transports--who were they? They are the scoundrels I'd like to
+see arrested and shot."
+
+"Never worry. They'll all meet their deserts. I can't tell even you who
+they are, but I've given your Chief Fleck a list of them. They will be
+quickly rounded up now. What else can I tell you?"
+
+"There's this," said Jane, the color rising to her cheeks as she drew
+forth from its hiding place in the bosom of her gown the packet he had
+entrusted to her the morning before, its seals still intact.
+
+"What?" he cried in delight. "You kept it safe? You did not open it even
+when you saw me arrested, when you must have been convinced that I was a
+spy? Girl, dear girl"--his voice became a caress, and the light of love
+flamed up in his eyes, "you did trust me then, in spite of everything."
+
+"I had promised you, and I kept my promise," faltered Jane, striving
+for words to explain, though she had been unable to explain her actions
+even to herself. "I think my heart trusted you all the time, even though
+my head and eyes made me believe you were what you pretended to be. Even
+when things looked blackest my heart persisted that you were true."
+
+"God bless your heart for that," cried Frederic, as he took the little
+packet from her hands and began breaking the seals. "Yesterday morning,
+when old Otto's plans were ready, I foresaw the danger of the trip ahead
+of me. I realized I might never come back alive. If they discovered who
+I was a second too soon it would mean my death. I dared not, for my
+country's sake, tell even you what I was doing. My honor was at stake. I
+dared not drop the slightest hint nor write a single line. The only
+thing I'd kept about me in the apartment that wasn't filthy German stuff
+was what's in here."
+
+Slowly he was unwrapping something rolled in tissue paper, as Jane,
+eager-eyed, looked wonderingly on.
+
+"But," he went on, "I couldn't go away from you without leaving some
+token, some clue. If it happened that I never came back, I wanted you
+to know--"
+
+He stopped abruptly.
+
+"To know what?" questioned the girl breathlessly.
+
+"To know that I loved you, darling, better than all else save honor," he
+said, taking her into his arms. "See the token I left behind for you.
+It's an old, old family ring with the Seymour crest. You'll wear it,
+girl of mine, won't you, wear it always."
+
+Unhesitatingly Jane Strong thrust forth the third finger on her left
+hand, and instinctively her lips turned upward toward his.
+
+And no matter what might have happened just then in the apartment next
+door, neither of them would have known anything about it.
+
+
+
+THE END
+
+
+
+
+
+End of Project Gutenberg's The Apartment Next Door, by William Andrew Johnston
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+Project Gutenberg's The Apartment Next Door, by William Andrew Johnston
+
+This eBook is for the use of anyone anywhere at no cost and with
+almost no restrictions whatsoever. You may copy it, give it away or
+re-use it under the terms of the Project Gutenberg License included
+with this eBook or online at www.gutenberg.org
+
+
+Title: The Apartment Next Door
+
+Author: William Andrew Johnston
+
+Release Date: February 23, 2004 [EBook #11240]
+[Date last updated: February 5, 2005]
+
+Language: English
+
+Character set encoding: ASCII
+
+*** START OF THIS PROJECT GUTENBERG EBOOK THE APARTMENT NEXT DOOR ***
+
+
+
+
+Produced by Juliet Sutherland, Charlie Kirschner and the Online
+Distributed Proofreading Team.
+
+
+
+
+
+The Apartment Next Door
+
+BY
+
+WILLIAM JOHNSTON
+
+AUTHOR OF
+THE HOUSE OF WHISPERS, LIMPY, ETC.
+
+ILUSTRATIONS BY
+ARTHUR WILLIAM BROWN
+
+
+_1919_
+
+
+
+
+TO THAT MARVELLOUS SCHEHERAZADE
+
+CAROLYN WELLS HOUGHTON
+
+THE AUTHOR, IN ENVIOUS ADMIRATION,
+DEDICATES THIS VOLUME
+
+
+
+
+CONTENTS
+
+
+CHAPTER
+
+I. THE FACE OF HATE
+
+II. THE ADDRESS ON THE CARD
+
+III. "MR. FLECK"
+
+IV. THE CLUE IN THE BOOK
+
+V. ON THE TRAIL
+
+VI. THE MISSING MESSAGE
+
+VII. THE WOMAN ON THE ROOF
+
+VIII. THE LISTENING EAR
+
+IX. THE PURSUIT
+
+X. CARTER'S DISCOVERY
+
+XI. JANE'S ADVENTURE
+
+XII. PUZZLES AND PLANS
+
+XIII. THE SEALED PACKET
+
+XIV. THE MOUNTAIN'S SECRET
+
+XV. THE HOUSE IN THE WOODS
+
+XVI. THE ATTACK ON THE HOUSE
+
+XVII. SOMETHING UNEXPECTED
+
+XVIII. WHAT THE PACKET CONTAINED
+
+
+
+
+LIST OF ILLUSTRATIONS
+
+ * * * * *
+
+She could not bring herself to tell him, the
+man she loved, the thing she knew he
+was.
+
+More than likely, she alone in all the world--knew
+who the murderer was.
+
+Had he been standing there listening? How
+much had he heard?
+
+"Thank God," he cried. "Jane, dear,
+tell me you are not hurt!"
+
+
+
+
+THE APARTMENT
+NEXT DOOR
+
+
+
+
+CHAPTER I
+
+
+THE FACE OF HATE
+
+It was three o'clock in the morning. Along a deserted pavement of
+Riverside Drive strode briskly a young man whose square-set shoulders
+and erect poise suggested a military training. His coat, thrown
+carelessly open to the cold night wind, displayed an expanse of white
+indicative of evening dress. As he walked his heels clicked sharply on
+the concrete with the forceful firm tread of the type which does things
+quickly and decisively. The intense stillness of the early morning hours
+carried the sound in little staccato beats that could be heard blocks
+away. A few yards behind him, moving furtively and noiselessly, almost
+as if he had been shod with rubber, crept another figure, that of a
+stocky, broad-shouldered man, who despite his bulk and weight moved
+silently and swiftly through the night, a soft brown hat drawn low over
+his eyes as if he desired to avoid recognition.
+
+All at once the man ahead paused suddenly and stood looking out over the
+river. Between the Drive and the distance-dimmed lights of the Jersey
+shore there rose like great silhouettes the grim figures of several huge
+steel-clad battleships, their fighting-tops lost in the shadows of the
+opposite hills. Beside them, obscure, with no lights visible, lay the
+great transports that in a few hours, or in a few days--who knew--they
+would be convoying with their precious cargo of fighting men across the
+war-perilled Atlantic.
+
+It was on the forward deck of one of these great battleships that the
+eyes of the man ahead were riveted. His shadower, evidently much
+concerned in his actions, crept slowly and stealthily forward,
+approaching nearer and still nearer without being observed.
+
+A dim light became visible on the warship's deck and then vanished.
+Still the man stood there watching, a puzzled, anxious look coming into
+his face. Quickly the light reappeared--two flashes, a pause, two
+flashes, a pause, and then a single flash. It was such a light as might
+have been made by a pocket torch, a feeble ray barely strong enough to
+carry to the adjacent shore, a light that if it had been flashed from
+some sheltered nook by the boat davits might not even have attracted the
+attention of the officer on the bridge nor of the ship's watchmen.
+Manifestly it was a signal intended for the eyes of some one on shore.
+
+A muttered imprecation escaped the lips of the watcher on the Drive. He
+stood there, straining his eyes toward the ship as if expecting a
+following signal, then he turned and gazed aloft at the windows of the
+apartment houses lining the driveway to see if some answering signal
+flashed back.
+
+And in the shadow of the buildings, hardly ten feet away but half
+sheltered by a doorway, stood his sinister pursuer, motionless
+but alert.
+
+For perhaps a quarter of an hour they held their positions. At last the
+man who was being followed shrugged his shoulders impatiently and set
+off again down the Drive, from time to time turning his head to watch
+the spot from which the signal had been flashed. Behind him, as
+doggedly as ever and now a little closer, crept the man with the hat
+over his eyes.
+
+Regardless of the lateness of the hour, at a third-floor window of one
+of the great apartment houses lining the Drive sat a young girl in her
+nightrobe, with her two great black braids flung forward over her
+shoulders, about which she had placed for warmth's sake a quilted
+negligee. Jane Strong was far too excited to sleep. An hour before she
+had come in from a wonderful party. The music still was playing mad
+tunes in her ears. The excitement, the coffee, the spirited tilts at
+arms with her many dancing partners had set her brain on fire. Sleep
+seemed impossible as yet.
+
+Looking out at the river--a favorite occupation of hers--the sight of
+the warships looming up through the darkness reminded her once more that
+nearly all of the men with whom she had been dancing had been in
+uniform, bringing into prominence in the jumble of ideas in her
+over-stimulated brain, almost as a new discovery, the fact that her
+country was really engaged in war, that the men, the very men whom she
+knew best, were most of them fighting, or soon going to fight in a
+foreign land. Suddenly she found herself vaguely wishing that there was
+something she might do, something for the war, something to help. Would
+it not be splendid, she thought, to go to France as a Red Cross nurse,
+to be over there in the middle of things, where something exciting was
+forever going on. Life--the only life she knew about, existence as the
+petted daughter of well-to-do parents in a big city--had, ever since the
+war had begun, seemed strangely flat and uninteresting. Parties, to be
+sure, were fun but hardly any one was giving parties this year. The
+Stantons had entertained only because their lieutenant son was going
+abroad soon, and they wished him to have a pleasant memory to carry with
+him. Most of the interesting men she knew already were gone, and now
+Jack Stanton was going. How she wished she could find some way of
+getting into the war herself.
+
+The sound of approaching footsteps caught her ear. Wondering who was
+abroad at that hour of the night she pushed up the window softly and
+looked out. In the distance she saw a man approaching, striding briskly
+toward her. As she stood idly watching him and wondering about him,
+suddenly she caught her breath. She had sighted the other figure behind,
+the man creeping stealthily after him. Nearer and nearer they came. In
+tense expectation she waited, sensing some unusual development. They had
+reached her block now. Almost directly under her window the man in
+advance paused to light a cigarette. His shadow paused, too, but some
+incautious movement on his part must have betrayed him.
+
+Match in hand, the man in advance stood stock-still, his whole figure
+taut, poised, alert, in an attitude of listening. All at once he wheeled
+about, discovering the man close behind him. He sprang at once for his
+pursuer. The latter took to his heels, dashing around the corner, the
+man whom he had been following now hot at his heels.
+
+All trembling with nervous excitement Jane leaned out the window to
+listen and watch. She could hear the running feet of both men just
+around the corner. What was happening? The running feet came to an
+abrupt stop. There was a half-smothered cry, a sharp thud, like a body
+striking the pavement, and then came silence. Puzzled, vaguely alarmed,
+a hundred questions came pouring into her brain and lingered there
+disturbingly. Why had one of these men been shadowing the other? Why had
+the pursuer suddenly become the pursued? Why had the running footsteps
+come to such an abrupt stop? What was the noise she had heard? What was
+happening around the corner? Her fears rapidly growing, she was on the
+point of arousing her family. But what excuse should she give? What
+could she tell them? After all she had merely seen two men run up the
+side street. More than likely they would only laugh at her, and she did
+not like being laughed at. Besides, Dad was always cross when suddenly
+awakened. Undecided what to do she stood at the window, peering into
+the night.
+
+Five minutes, ten minutes she stood there in tremulous perplexity. A
+sense of impending tragedy seemed to have laid hold of her. A black
+horror seized her and held her at the window. Something terrible,
+something tragic, she was sure must have happened. Mustering up her
+strength and trying to calm her fears she was about to put down the
+window when she heard footsteps once more approaching. Straining her
+ears to listen she discovered the sound was that of the steps of a
+man--one man--approaching from around the corner. As she watched he
+turned into the Drive and came on toward her. She shrank back a little,
+fearful of being seen even though her room was in darkness. It was the
+first man. She recognized him at once by his top-hat and his evening
+clothes. He was walking even more briskly than before, almost running.
+There was no sign anywhere of the shorter thick-set man who had been
+following him. Something in the appearance of the figure in the street
+below struck her all at once as vaguely familiar. She wondered if it
+could be any one she knew.
+
+Presently he came directly opposite the light on the other side of the
+Drive so that it shone for an instant full on his face. Jane looked and
+shuddered. Never in all her life had she seen any man's countenance so
+convulsed, not with pain, but with a soul-terrifying expression of hate,
+of virulent, murderous hate.
+
+Distorted though the man's face was with such bitter frightfulness, she
+recognized him, not as any one she knew, but merely as one of the
+tenants in the same apartment building.
+
+"It's one of the people next door," she said to herself and in
+verification of her identification, as he approached the building, the
+young man cast a swift glance over his shoulder, and then, as if
+satisfied that he was unobserved, dashed hurriedly in at the entrance.
+
+Jane, more than ever wrought up with fear and dread of she knew not
+what, sprang hastily into bed and drew the covers about her shoulders.
+As yet she did not lie down but shiveringly waited. Presently she heard
+the elevator stop. She heard the key opening the door of the next
+apartment. In a few minutes she heard the man moving about his bedroom,
+separated from her own room by a mere six inches of plaster and paper,
+or whatever it is that apartment-house walls are made of.
+
+What could have happened? She was certain that something terrible had
+occurred in which the young man next door had played a tragic, perhaps
+even a criminal part. She tried in vain to conjecture what circumstance
+could have been responsible for the look of hatred she had seen on his
+face. She wondered what had been the fate of the man who had been
+following him. Had they quarrelled and fought? What could have been the
+subject of their quarrel?
+
+She tried to summarize what she knew about the people next door, and was
+amazed to discover how little she had to draw upon. As in most New York
+apartment houses so in Jane's home all the tenants were utter strangers
+to each other, one family not even knowing the names of any of the
+others. Occasionally, to be sure, one rather resentfully rode up or down
+in the elevator with some of the other tenants but always without
+noticing or speaking to them. Jane's family had been living in the
+building for five years, and of the twenty other families they knew the
+names of only two, having learned them by accident rather than
+intention. About the people next door Jane now discovered that she
+really knew nothing at all. There was a man with a gray beard who never
+took off his hat in the elevator, and there was the handsome young chap
+whom she had just seen entering. But what their names were, or their
+business, or how long they had lived there, or whether they were father
+and son, what servants they kept, or whether either or both of them was
+married--these were questions she could have answered as readily as if
+they had been living in Dallas, Texas, or Seattle, Washington, as in the
+next apartment. Quickly she found that she really knew nothing at all
+about them except--she could not recall that any one had told her or how
+she had got the impression--she was almost certain they were some sort
+of foreigners.
+
+Just when it was that her troubled thoughts were succeeded by even more
+troubled dreams she was not aware, but it was noon the next day when she
+was awakened by the maid bringing in her breakfast tray.
+
+"Terrible, Miss Jane, wasn't it," said the servant, "about that suicide
+last night, almost under our noses, you might say."
+
+"Suicide!" cried the girl, at once wide-awake and interested "What
+suicide?"
+
+"A man was found dead in the side street right by our building with a
+revolver in his hand."
+
+"What sort of a looking man was he?"
+
+"I didn't see him," said the maid, almost regretfully. "He was taken
+away before I was up. Cook tells me it was the milkman found him and
+notified the police."
+
+"Who was he?"
+
+"Nobody round here knows a thing about him. He shot himself through the
+heart and us sleeping here an' not knowing anything at all about it."
+
+"But didn't any one know who he was?"
+
+"Never a soul. The superintendents from all the buildings round took a
+look at the body, but none of them knew him. It wasn't anybody that
+lived around here. There's a piece in the afternoon papers about it."
+
+"Get me a paper at once," directed the girl.
+
+Eagerly she read the paragraph the maid pointed out. It really told very
+little. The body of a plainly dressed man had been found on the
+sidewalk. There was a revolver in his hand with one cartridge
+discharged, and the bullet had penetrated his heart. He had been a short
+stalky man and had worn a brown soft hat. There was nothing about his
+clothing to identify him, even the marks where his suit had been
+purchased having been removed. He had not been identified. The police
+and the coroner were satisfied that it was a case of suicide.
+
+Suicide!
+
+Jane, reading and rereading the paragraph, recalled the unusual
+occurrence she had witnessed the night before. Vividly there stood out
+before her the strange panorama she had seen, the tall young man in
+evening clothes, and the short stalky man with the soft hat who had
+followed him. The two of them had run around the corner. Only one of
+them had come back. Unforgettably there was imprinted in her memory the
+satanic expression on the young man's face as he had hastened into the
+house. No wonder he had cast such an anxious glance behind him as
+he entered.
+
+Suicide!
+
+Jane was certain that it was no suicide. She remembered the curious thud
+she had heard from around the corner, like a body falling to the
+pavement. She recalled that it must have been at least ten minutes
+before the other man reappeared, time enough to have placed the revolver
+in the dead man's hand, time enough even to have removed all possible
+means of identification from the man's clothing.
+
+It was not suicide, Jane felt certain. It was murder! Slowly but
+oppressingly, overwhelmingly, it dawned on her not only that in all
+probability a murder had been committed, but also that she--more than
+likely, she alone in all the world--knew who the murderer was, who it
+must have been--the young man next door.
+
+
+
+CHAPTER II
+
+THE ADDRESS ON THE CARD
+
+Impatiently Jane looked at her wrist watch. It lacked an hour of the
+time when she was to meet her mother at the Ritz for tea. Her nerves
+still all ajangle from excitement and worry over the morning's tragedy,
+and her own accidental secret knowledge of certain aspects of the case
+had made it wholly impossible for her to do anything that day with even
+simulated interest.
+
+She had been debating with herself whether or not to confide to her
+mother the story of the tragic tableau of which she had been an
+accidental witness, when Mrs. Strong had dashed into her bedroom to give
+her a hurried peck on the cheek and to say that she was off to luncheon
+and the matinee with Mrs. Starrett.
+
+"You're not looking well to-day, dear," her mother had said. "Stay in
+bed and rest and join us for tea if you like."
+
+Before she had opportunity to tell what she had seen, her mother was
+gone, but Jane had found it impossible to obey her well-meant
+injunction. She rose and dressed, her mind busy all the while with the
+problem of what her duty was. As she donned her clothing she paused from
+time to time to listen for sounds from the next apartment.
+
+What was her neighbor doing now? Had he read of the discovery of the
+man's body in the street? Perhaps he had fled already? Not a sound was
+to be heard there. He did not look in the least like what Jane imagined
+a murderer would, yet certainly the circumstances pointed all too
+plainly to his guilt. She had seen two men dash around the corner, one
+in pursuit of the other. One of them had come back alone. Not long
+afterward a body--the body of the other man--had been found with a
+bullet in his heart. It must have been a murder.
+
+What ought she to do about it? Was it her duty to tell her mother and
+Dad about what she had seen? Mother, she knew, would be horrified and
+would caution her to say nothing to any one, but Dad was different. He
+had strict ideas about right and justice. He would insist on hearing
+every word she had to tell. More than likely he would decide that it was
+her duty to give the information to the authorities. Her face blanched
+at the thought. She could not do that. She pictured to herself the
+notoriety that would necessarily ensue. She saw herself being hounded by
+reporters, she imagined her picture in the papers, she heard herself
+branded as "the witness in that murder case," she depicted herself being
+questioned by detectives and badgered by lawyers.
+
+No, she decided, it would be best for her never to tell a soul, not even
+her parents. In persistent silence lay her safest course. After all she
+had not witnessed the commission of the crime. She was not even sure
+that the man found dead had been one of the two she had watched from her
+window. If she saw the body she would not be able to identify it. She
+was not even certain in her own mind that the man next door had done the
+shooting, however suspicious his actions may have appeared to her.
+Besides, he did not look in the least like a murderer. He was too
+well-dressed.
+
+In an effort to put the whole thing out of her mind she tried to read,
+but was unable to keep her thoughts from wandering. She sat down at the
+piano, but music failed to interest or soothe her. She mussed over some
+unanswered notes in her desk but could not summon up enough
+concentration of mind to answer them. Restless and fidgety, unable to
+keep her thoughts from the unusual occurrences that had disturbed her
+ordinarily too peaceful life, she decided to take a walk until it was
+time to keep her appointment. Something--force of habit probably--led
+her to the shopping district. With still half an hour to kill, she went
+into a little specialty shop to examine some knitting bags displayed in
+the window.
+
+"Why don't you knit as all the other girls are doing?" was her father's
+constant suggestion every time she asserted her desire to be doing
+something in the war.
+
+"There's no thrill in knitting," she would answer. "Fix it, Dad, so that
+I can go to France as a Red Cross nurse or as an ambulance driver, won't
+you? I want some excitement."
+
+Always he had refused to consent to her going, insisting that France in
+wartime was no place for an untrained girl.
+
+"If I can't go myself, I certainly am not going to send any knitting,"
+she would spiritedly answer, but several times recently the sight of
+such charming looking knitting bags had tempted her into almost breaking
+her resolution.
+
+Inside the shop she found nothing that appealed to her, and contented
+herself with buying some toilet articles. As she made her purchases she
+noticed, almost subconsciously, a man standing near, talking with one of
+the shopgirls--a middle-aged man with a dark mustache.
+
+"The address, please," said the girl, who had been waiting on her.
+
+"Miss Strong," she answered, giving the number of the apartment house on
+Riverside Drive.
+
+She recalled afterward that as she mentioned the number the man standing
+there had turned and looked sharply at her, but she thought nothing of
+it. Her father's name was well known and he had many acquaintances in
+the city. More than likely, she supposed, this man was some friend of
+her father who had recognized the name.
+
+She lingered a few moments at some of the other counters, aimlessly
+inspecting their offerings, and at last, with ten minutes left to reach
+the Ritz, emerged from the store. She was amazed to see the man who had
+been inside now standing near the entrance, and something within warned
+her that he had been waiting to speak to her. As she attempted to pass
+him quickly, he stepped in front of her, blocking her path, but raising
+his hat deferentially.
+
+"I beg your pardon, Miss Strong," he said, "may I have a word with you?"
+
+Compelled to halt, she looked at him both appraisingly and resentfully.
+There was nothing offensive nor flirtatious in his manner, and he seemed
+far too respectably dressed to be a beggar. He was almost old enough to
+be her father, and besides there was about him an indefinable air of
+authority that commanded her attention. She decided that, unusual as his
+request appeared, she would hear what he had to say.
+
+"What is it?" she asked, trying to assume an air of hauteur but without
+being able wholly to mask her curiosity.
+
+"You are an American, aren't you?" he asked abruptly.
+
+"Of course."
+
+"A good American?"
+
+"I hope so." She decided now that he must be one of the members of some
+Red Cross fund "drive," or perhaps an overenthusiastic salesman for
+government bonds. "But I don't quite understand what it is that
+you wish."
+
+"I can't explain," said her questioner, "but if you really are a good
+American and you'd like to do your country a great service--an important
+service--go at once to the address on this card."
+
+She took the slip of white pasteboard handed her. On it was written in
+pencil "Room 708." The building was a skyscraper down-town.
+
+"What is it?" she asked half indignantly, "a new scheme to sell bonds?"
+
+"No, no, Miss Strong," he cried, "it is nothing like that. It is a great
+opportunity to do an important service for America."
+
+"How did you know my name?"
+
+"I heard you give it to the clerk just now."
+
+"And why," she inquired with what she intended to be withering sarcasm,
+"have I been selected so suddenly for this important work?"
+
+"I heard the address you gave, that's why," he answered. "That's what
+makes it so important that you should go to that number at once. Ask for
+Mr. Fleck."
+
+"I can't go," she temporized. "I am on my way now to meet my mother at
+the Ritz."
+
+"Go to-morrow, then," he insisted. "I'll see Mr. Fleck meanwhile and
+tell him about you."
+
+Puzzled at the man's unusual and wholly preposterous request, yet in
+spite of herself impressed by his evident sincerity, Jane turned the
+card nervously in her hand and discovered some small characters on the
+back; "K-15" they read.
+
+"What do those figures mean?" she asked.
+
+"I can't tell you that. Mr. Fleck will explain everything. Promise me
+you will go to see him."
+
+"Who are you?"
+
+"I can't tell you that, yet."
+
+"Who, then, is Mr. Fleck?"
+
+"He will explain that to you."
+
+"What has my address to do with it? I can't understand yet why you make
+this preposterous request of me."
+
+"I tell you I can't explain it to you, not yet," the man replied, "but
+it's because you live where you do you must go to see Mr. Fleck. It's
+about a matter of the highest importance to your government. It is more
+important than life and death."
+
+His last words startled her. They brought to her mind afresh the
+mysterious occurrence she had witnessed the night before and the equally
+mysterious death near her home. Had this man's odd request any
+connection, she wondered, with what had happened there? The lure of the
+unknown, the opportunity for adventure, called to her, though prudence
+bade her be cautious.
+
+"I'll ask my mother," she temporized.
+
+"Don't," cried the man. "You must keep your visit to Mr. Fleck a secret
+from everybody. You mustn't breathe a word about it even to your father
+and mother. Take my word for it, Miss Strong, that what I am asking you
+to do is right. I've two daughters of my own. The thing I'm urging you
+to do I'd be proud and honored to have either of them do if they could.
+There is no one else in the world but you that can do this particular
+thing. A word to a single living soul and you'll end your usefulness.
+You must not even tell any one you have talked with me. See Mr. Fleck.
+He'll explain everything to you. Promise me you'll see him."
+
+"I promise," Jane found herself saying, even against her better
+judgment, won over by the man's insistence.
+
+"Good. I knew you would," said her mysterious questioner, turning on his
+heel and vanishing speedily as if afraid to give her an opportunity of
+reconsidering.
+
+Puzzled beyond measure not only at the man's strange conduct but even
+more at her own compliance with his request, Jane made her way slowly
+and thoughtfully to the Ritz, where she found her mother and Mrs.
+Starrett had already arrived.
+
+As they sipped their tea the two elder women chatted complacently about
+the matinee, about their acquaintances, about other women in the
+tea-room and the gowns they had on, about bridge hands--the usual small
+talk of afternoon tea.
+
+To Jane, oppressed with her two secrets, all at once their conversation
+seemed the dreariest piffle. Great things were happening everywhere in
+the world, nations at war, men fighting and dying in the trenches of
+horror for the sake of an ideal, kings were being overthrown, dynasties
+tottering, boundaries of nations vanishing. Women, she realized, too,
+more than ever in history, were taking an active and important part in
+world affairs. In the lands of battle they were nursing the wounded,
+driving ambulances, helping to rehabilitate wrecked villages. In the
+lands where peace still reigned they were voting, speech-making, holding
+jobs, running offices, many of them were uniting to aid in movements for
+civic improvement, for better children, for the improvement of the whole
+human race.
+
+And here they were--here _she_ was, idling uselessly at the Ritz as she
+had done yesterday, last week, last month--forever, it seemed to her.
+The vague protest that for some time had been growing within her against
+the senselessness and futility of her manner of existence crystallized
+itself now into a determination no longer to submit to it. Courageously
+she was resolving that she would take the first opportunity to escape
+from this boresome routine of pleasure-seeking. She was wondering if the
+request that had been so unexpectedly made of her would prove to be her
+way out from her prison of desuetude.
+
+The talk of the two women with her drifted aimlessly on. Seldom was she
+included in it, save when her mother, nodding to some one she knew,
+would turn to say:
+
+"Daughter, there is Mrs. Jones-Lloyd."
+
+What did she care about Mrs. Jones-Lloyd? What did she care about any of
+the people about them, aimless, pleasure-hunting drifters like
+themselves. Left to her own devices for mental activity her thoughts
+kept recurring to the surprising adventure she had had a few minutes
+before. Thoughtfully she pondered over the mysterious message that had
+been given to her. The man had said that it was a wonderful opportunity
+for her to do her country a great service. She wondered why he had been
+so secretive about it. She decided that she would investigate further
+and made up her mind to carry out his instructions. What harm could
+befall her in visiting an office building in the business district? At
+least it would be something to do, something new, something different,
+something surely exciting and, perhaps, something useful.
+
+It would be better, she decided, for the present at least, to keep her
+intentions entirely to herself. Any hint of her plans to her mother
+would surely result in permission being refused. The man certainly had
+seemed sincere, honest, and perfectly respectable, even if he was not of
+the sort one would ask to dinner. She made up her mind to go down-town
+to the address given the very first thing to-morrow morning. If anything
+should happen to her, she felt that she could always reach her father.
+His office was in the next block.
+
+The problem of making the mysterious journey without her mother's
+knowledge bothered her not at all. As in the case of most
+apartment-house families, she and her mother really saw very little of
+each other, especially since she had become a "young lady." Mrs. Strong
+went constantly to lectures, to luncheons, to bridge parties, to
+matinees with her own particular friends. Jane's engagements were with
+another set entirely, school friends most of them, whose parents and
+hers hardly knew each other. Both she and her mother habitually
+breakfasted in bed, generally at different hours, and seldom lunched
+together. At dinner, when Mr. Strong was present, there were no
+intimacies between mother and daughter. The only times they really saw
+each other for protracted periods were when they happened to go
+shopping, or go to the dressmaker's together, and then the subject
+always uppermost in the minds of both of them was the all-important and
+absorbing topic of clothes. Occasionally, Jane poured at one of her
+mother's more formal functions, but for the most part the time of each
+was taken up in a mad, senseless hunt for amusement.
+
+Suddenly every thought was driven from Jane's head. Her face went white,
+and with difficulty she managed to suppress an alarmed cry.
+
+"What is it, daughter?" asked her mother, noting her perturbation. "Are
+you feeling ill?"
+
+"A touch of neuralgia," she managed to answer.
+
+"Too many late hours," warned Mrs. Starrett reprovingly.
+
+"I'm afraid so," said Mrs. Strong. "As soon as I've paid my check we'll
+go."
+
+"I'm perfectly all right now," said Jane, controlling herself with
+effort, though her face was still white.
+
+The danger that she had feared had passed for the present at least.
+Glancing toward the entrance a moment before she had been terrified to
+see entering the black-mustached man who had accosted her a few moments
+before. Her one thought now had been that he had followed her here, and
+in a panic she was wondering how she should make explanations if he came
+up to their table and spoke. To her great relief he gave no intimation
+of having seen her, but settled himself into a chair near the door where
+he was half hidden from her by a great palm. Furtively she watched him,
+trying to divine his intention in having followed her there. Respectable
+enough though he was in appearance and garb, he did not seem in the
+least like the sort of man likely to be found at tea-time in an
+exclusive hotel. As she studied him she soon saw that his attention
+seemed to be riveted on some one sitting at the other side of the room.
+Wonderingly she let her eyes follow his, and once more it was with
+difficulty that she suppressed an excited gasp.
+
+There, across the room, calmly sipping some coffee, was the handsome
+young man from the next apartment--the man whom she had felt sure, or at
+least almost sure, was a murderer, about whom she had been wondering all
+day long, picturing him as a hunted criminal fleeing from the law.
+Chatting interestedly with him was another man, a young man in the
+uniform of a lieutenant in the navy.
+
+What did it all mean? Why was the black-mustached man watching them so
+intently? Her eyes turned back to him. He was still sitting there,
+leaning forward a little, his brows in a pucker of concentration, his
+eyes still fixed on the pair opposite. It looked almost as if he was
+trying to read their lips and tell what they were talking about.
+
+Jane thrilled with excitement. The black-mustached man, she decided,
+must be a detective. She recalled that he had said to her it was because
+she lived at the address she did that she was available for the mission
+for which he wanted her. Did he, she wondered, know about the mysterious
+death in the street outside their apartment house? Was that the reason
+he was spying on her neighbor? But what could be his motive in seeking
+to involve her in the matter?
+
+Unable to find satisfactory answers to her questions she gave herself up
+interestedly to studying the faces of the two young men across the room.
+Neither of them, she decided, could be much more than thirty. The face
+that only a few hours before she had seen utterly convulsed with bitter
+hate, now placid and smiling, was really an attractive one, not in the
+least like a murderer's. Frank, alert blue eyes looked out from under an
+intellectual forehead. A small military mustache lent emphasis to a
+clean-shaven, forceful jaw. His flaxen hair was neatly trimmed. His
+linen and clothing were immaculate, and the hand that curved around his
+cup had long, tapering, well-manicured fingers. The cut of his clothing,
+his manners, everything about him seemed American, yet there was an
+indefinable something in his appearance that suggested foreign birth or
+parentage, probably either Swedish or German. The man with him was
+smaller and slighter. Despite the air of importance his uniform gave
+him, it was palpable that he was the less forceful of the two, his
+handsome face, it seemed to Jane, betraying weakness of character and a
+fondness for the good things of life.
+
+"Come, daughter," said Mrs. Strong, rising, "we must be going."
+
+So intent was Jane on her study of the two men that her mother had to
+speak twice to her.
+
+"Yes, mother," she answered obediently, rising hastily as the hint of
+annoyance in her mother's repeated remark brought her to a realization
+of having been addressed.
+
+Letting her mother and Mrs. Starrett precede her in the doorway she
+paused to look back at the scene that had interested her so strongly.
+What _could_ it mean? What was going on? How was she involved in it?
+
+Her glance moved quickly from the watcher to the watched. The blond
+young man caught her eye. Amazedly, it seemed to her, he stopped right
+in the middle of what he was saying and sat there, his gaze fixed full
+on her. She let her eyes fall, abashed, and turned to hasten after her
+mother, but not so quickly did she turn but that she observed he had
+hastily seized his cup and appeared to be drinking to her, not so much
+impudently as admiringly.
+
+
+
+CHAPTER III
+
+"MR. FLECK"
+
+Twice after the elevator had deposited her on the floor Jane had
+approached the door of Room 708, and twice she had walked timorously
+past it to the end of the hall, trying to muster up courage to enter. A
+visit to a man's office in the business district was a novelty for her.
+On the few previous excursions of the sort she had made she always had
+been accompanied by one of her parents. She found herself wishing now
+that she had taken her father into her confidence and had asked him to
+go with her. Making shopping her excuse she had come down-town with Mr.
+Strong but had gotten off at Astor Place, and waited over for
+another train.
+
+In her hand she held the card given to her by the black-mustached man
+the afternoon before. As she studied it now her curiosity came to the
+rescue of her fast-oozing courage. She must find out what it all meant,
+whatever the risk or peril that might confront her. Boldly she returned
+to Room 708 and opened the door. An office boy seated at a desk looked
+up inquiringly.
+
+"Is Mr. Fleck in?" she inquired timidly.
+
+"Who wishes to see him?"
+
+"Just say there's a lady wishes to speak to him," she faltered,
+hesitating to give her name.
+
+"Are you Miss Strong?" asked the boy abruptly, "because if you are, he's
+expecting you."
+
+She nodded, and the boy, jumping up, escorted her into an inner room. As
+she entered nervously an alert-looking man, with graying hair and
+mustache, rose courteously to greet her. In the quick glance she gave at
+her surroundings she was conscious only of the great mahogany desk at
+which he sat and behind it some filing cabinets and a huge safe, the
+outer doors of which stood open.
+
+"Sit down, won't you, Miss Strong," he said, placing a chair for her.
+
+His manner and his cultured tone, everything about him, reassured her at
+once. They conveyed to her that he was what she would have termed "a
+gentleman," and with a little sigh of relief she seated herself.
+
+"I'm afraid," said Mr. Fleck, smiling, "that Carter's method of
+approaching you must have alarmed you."
+
+"Carter--Oh, the black-mustached man."
+
+"Yes, that describes him. You see, he did not wish to act definitely
+without consulting his chief, yet the unexpected opportunity seemed far
+too vital not to be utilized. He did not explain, did he, what it was we
+wanted of you?"
+
+"Indeed he didn't," said Jane, now wholly herself. "He was most
+mysterious about it."
+
+Mr. Fleck smiled amusedly.
+
+"Carter has been an agent so long that being mysterious is second nature
+to him."
+
+"An agent--I don't understand."
+
+"A Department agent," explained Mr. Fleck, adding, "engaged in secret
+service work for the government."
+
+"Oh!"
+
+Jane's exclamation was not so much of surprise as of delighted
+realization, and the satisfaction expressed in her face was by no means
+lost on Mr. Fleck.
+
+"Would you object," he asked, moving his chair a little closer to hers,
+"if, before I explain why you are here, I ask you a few questions--very
+personal questions?"
+
+"Certainly not," said Jane.
+
+"You are American-born, of course?"
+
+"Oh, yes."
+
+"And your parents?"
+
+"American for ten or twelve generations."
+
+"How long have you lived in that apartment house on Riverside Drive?"
+
+"For about five years."
+
+"Do you know any of the other tenants in the house?"
+
+"No--that is, none personally."
+
+"Is your time fully occupied?"
+
+"No, indeed it isn't, I've nothing to do at all, nothing except to try
+to amuse myself."
+
+"Good," said Mr. Fleck. "Now would you be willing to help in some secret
+work for the United States Government, some work of the very highest
+importance?"
+
+"Would I?" cried Jane, her eyes shining. "Gladly! Just try me."
+
+"Don't answer too quickly," warned Mr. Fleck. "Remember, it will be real
+work, serious work, not always pleasant, sometimes possibly a little
+perilous. Remember, too, it must be done with absolute secrecy. You must
+not let even your parents know that you are working with us. You must
+pledge yourself to breathe no word of what you are doing or are asked to
+do to a living soul. Everything that we may tell you is to be buried
+forever from everybody. No one is to be trusted. The minute one other
+person knows your secret it will no longer be a secret. Can we depend
+upon you?"
+
+"You may absolutely depend on me," said Jane slowly and soberly. "I give
+you my word. I have been eager for ever so long to do something to help,
+to really help. My father is doing all he can to aid the government.
+He's on the Shipping Board."
+
+Mr. Fleck nodded. Evidently he was aware of it already.
+
+"My brother, my only brother," Jane continued, with a little catch in
+her throat, "is Over There--somewhere Over There--fighting for his
+government. If there is anything I can do to help the country he is
+fighting for, the country he may die for, I pledge you I will do it
+gladly with my heart, my soul, my body--everything."
+
+"Thank you," said Mr. Fleck softly, taking her hand. "I felt sure you
+were that sort of a girl. Now listen." He moved his chair still closer
+to hers, and his voice became almost a whisper. "In the apartment next
+to you there live two men,--Otto Hoff and his nephew, Fred. They have an
+old German servant, but we can leave her out of it for the present. The
+old man is a lace importer. Apparently they are both above
+suspicion, yet--"
+
+He stopped abruptly.
+
+"You think they are spies--spies for Germany," questioned Jane
+excitedly. "They're Germans, of course?"
+
+"Otto Hoff is German-born, but he has been here for twenty years.
+Several years ago he took out papers and became an American citizen."
+
+"And the young man?"
+
+Jane's tone was vibrant with interest. It must be the man she had seen
+from her window whom they suspected most.
+
+"He professes to be American-born."
+
+"Oh," said the girl, rather disappointedly.
+
+"But," continued Mr. Fleck, "there's something queer about it all. He
+arrived in this country only three days before we went into the war. He
+had a certificate, properly endorsed, giving his birthplace as
+Cincinnati. He arrived on a Scandinavian ship. He speaks German as well
+and as fluently as he speaks English, both without accent."
+
+"Perhaps he was educated abroad," suggested Jane, rather amazed at
+finding herself seeking to defend him.
+
+"He must have been," said Fleck, "yet I find it hard to believe that
+Germany at this time is letting any young German-American come home if
+he's soldier material--and young Hoff's appearance certainly suggests
+military training."
+
+"It surely does."
+
+"Unless," continued Fleck, "there was some special object in sending him
+here."
+
+"You think," said Jane slowly, "they sent him here--to this country--as
+a spy."
+
+"In our business we dare not think. We cannot merely conjecture. We must
+prove," said Mr. Fleck. "Maybe the Hoffs are O.K. I do not know. Nobody
+knows yet. Let me tell you some of the circumstances. This much we do
+know. Von Bernstorff is gone. Von Papen is gone. Scores of active German
+sympathizers and propagandists have been rounded up and interned or
+imprisoned, yet, in spite of all we have done, their work goes on. A
+vast secret organization, well supplied with funds, is constantly at
+work in this country, trying to cripple our armies, trying to destroy
+our munition plants, trying to corrupt our citizens, trying to disrupt
+our Congress. Every move the United States makes is watched. As you
+probably know, every day now large numbers of American troops are
+embarking in transports in the Hudson."
+
+"Yes," said Jane, "you can see them from our windows."
+
+"Now then," said Mr. Fleck, lowering his voice impressively, "here is
+the fact. Some one somewhere on Riverside Drive is keeping close and
+constant tab on the warships and transports there in the river. We have
+managed recently to intercept and decipher some code messages. These
+messages told not only when the transports sailed but how many troops
+were on each and how strong their convoy was. Where these messages
+originate we have not yet learned. We are practically certain that some
+one in our own navy, some black-hearted traitor wearing an officer's
+uniform--perhaps several of them--is in communication with some one on
+shore, betraying our government's most vital secrets."
+
+"I can't believe it," cried Jane, "our own American officers traitors!"
+
+"Undoubtedly some of them are," said Mr. Fleck regretfully. "The German
+efficiency, for years looking forward to this war, carefully built up a
+far-reaching spy system. Years ago, long before the war was thought
+of--or at least before we in this country thought of it--many secret
+agents of Wilhelmstrasse were deliberately planted here. Many of them
+have been residents here for years, masking their real occupation by
+engaging in business, utilizing their time as they waited for the war to
+come by gathering for Germany all of our trade and commercial secrets.
+Some of these spies have even become naturalized, and they and their
+sons pass for good American citizens. In some cases they have even
+Americanized their names. Insidiously and persistently they have worked
+their way into places, sometimes into high places in our chemical
+plants, our steel factories, yes, even into high places in our army and
+navy and into governmental positions where they can gather information
+first-hand. In no other country has it been so easy for them, because of
+this one fact: so large a proportion of Uncle Sam's population is of
+German birth or parentage. Why here in New York City alone there are
+more than three-quarters of a million persons, either German-born
+themselves or born of German parents. Many of them, the vast majority of
+them, probably, are loyal to America, but think how the plenitude of
+German names makes it easy for spies to get into our army and navy.
+Besides that, they employ evil men of other nationalities as spies, the
+criminal riffraff,--Danes, Swedes, Spaniards, Italians, Swiss and even
+South Americans,--all of whom are free to go and come as they choose in
+this country."
+
+"I never realized before," said Jane, "how many Germans there were all
+about us."
+
+"In an effort to locate this particular band of naval spies," continued
+Mr. Fleck, "we have combed the apartment houses and residences along
+the Drive. Three places in particular are under suspicion. The apartment
+of the Hoffs is one of these places. They moved in there thirty days
+after this country went to war. Ordinarily, where the occupants of an
+apartment are under suspicion, we take the superintendent of the
+building partly into our confidence and plant operatives in the house,
+or else we hire an apartment in the same building. In this case neither
+course is practicable. The superintendent of your building is a
+German-American and we dare not trust him, and there is no vacant
+apartment that we can rent. We have been watching the Hoffs from the
+outside as best we could. Carter, who has had charge of the shadowing,
+accidentally happened to overhear you give your address. He had procured
+a list of the tenants and remembered the location of your apartment. It
+struck him at once that you would be a valuable ally if you would
+consent to work with us."
+
+"What is it that you wish me to do?" asked Jane wonderingly. "You'll
+have to tell me how to go about it."
+
+"All a good detective needs," said Mr. Fleck, "is, let us say, three
+things--observation, addition and common sense. You must observe
+everything closely, be able to put two and two together and use your
+common sense. Do you know the Hoffs by sight?"
+
+"Only by sight."
+
+"They live in the next apartment on your floor, do they not?"
+
+"Yes. Young Mr. Hoff's bedroom is the room next to mine."
+
+"Good," cried Mr. Fleck. "Can you hear anything from the next apartment,
+any conversations?"
+
+"No, only muffled sounds."
+
+"The windows overlook the river and the transports, do they not?"
+
+"Yes, the windows of Mr. Hoff's bedroom and the room next. Their
+apartment is a duplicate of ours."
+
+Mr. Fleck sprang up and crossed to the big safe. Opening an inner drawer
+he took out a small metal disk and handed it to her. Jane looked at it
+curiously. It bore no wording save the inscription "K-19."
+
+"That," said Mr. Fleck, "is the only thing I can give you in the way of
+credentials. Keep it somewhere safely concealed about your clothing and
+never exhibit it except in case of extreme necessity. If ever you are in
+peril any police officer will recognize it at once and will promptly
+give you all the assistance possible."
+
+"But," protested the girl, "I don't know yet what I am to do."
+
+"For the present I am trusting to your resourcefulness to make
+opportunities to help us. We are watching the house closely from the
+outside. Carter will identify you to the other operatives. Once a day I
+will expect you to call me up, not from your home but from a public
+'phone. Here is my number. Say 'this is Miss Jones speaking,' and I will
+know who it is. I can communicate with you by note without arousing
+suspicion?"
+
+"Oh, yes, certainly."
+
+"If at any time I have to call you on the 'phone, or if any of the other
+operatives want to communicate with you the password will be 'I am
+speaking for Miss Jones.'"
+
+"Isn't that exciting--a secret password," cried Jane enthusiastically.
+
+"If you can manage it without compromising yourself too seriously, I
+wish you would make the young man's acquaintance."
+
+"That will be simple," said Jane, remembering the admiring way in which
+he had raised his cup in her direction as she left the hotel.
+
+"If possible find out who their visitors are in the apartment and keep
+your eyes open for any sort of signalling to the transports. If ever
+there is an opportunity to get hold of notes or mail delivered to either
+of them, don't hesitate to steam it open and copy it."
+
+"Must I?" said Jane. "That hardly seems right or fair."
+
+"Of course it's right," cried Mr. Fleck warmly. "Think of the lives of
+our soldiers that are at stake. The devilish ingenuity of these German
+spies must be thwarted at all costs. They seem to be able to discover
+every detail of our plans. Only two days ago one of our transports was
+thoroughly inspected from stem to stern. Two hours later twenty-six
+hundred soldiers were put aboard her on their way to France. Just by
+accident, as they were about to sail, a time-bomb was discovered in the
+coal bunkers, a bomb that would have sent them all to kingdom come."
+
+"How terrible!"
+
+"Somebody aboard is a traitor. Somebody knew when that inspection was
+made. Somebody put that bomb in place afterward. That shows you the kind
+of enemies we are fighting."
+
+Jane shuddered. She was thinking of the sailing of another transport,
+the one that had carried her brother to France.
+
+"Anything seems right after that," she said simply.
+
+"Yes," said Mr. Fleck, "there is only one effective way to fight those
+spying devils. We must stop at nothing. They stop at nothing--not even
+murder--to gain their ends."
+
+"I know that," said Jane hastily. "I saw something myself you ought to
+know about."
+
+As briefly as she could she described the scene she had witnessed in the
+early morning hours from her bedroom window, the man following the
+younger Hoff, Hoff's discovery and pursuit of him around the corner and
+of his return alone.
+
+"And in the morning," she concluded, "they found a man's body in the
+side street. He had a bullet through his heart. There was a revolver in
+his hand. The newspapers said that the police and the coroner were
+satisfied that it was a suicide. I caught a glimpse of Mr. Hoff's face
+when he came back from around that corner. It was all convulsed with
+hate, the most terrible expression I ever saw. I'm almost certain he
+murdered that man. I'm sure it wasn't a suicide."
+
+"I'm sure, too, that it was no suicide," said Mr. Fleck gravely. "The
+man who was found there was one of my men, K-19, the man whose badge I
+have just given you. He had been detailed to shadow the Hoffs."
+
+
+
+CHAPTER IV
+
+THE CLUE IN THE BOOK
+
+Subway passengers sitting opposite Jane Strong as she rode up-town from
+Mr. Fleck's office, if they observed her at all--and most of them
+did--saw only a slim, good-looking young girl, dressed in a chic
+tailormade suit, crowned with a dashing Paris hat tilted at the proper
+angle to display best the sheen of her black, black hair, which after
+the prevailing fashion was pulled forward becomingly over her ears.
+Outwardly Jane was unchanged, but within her nerves were all atingle at
+the thought of the tremendous and fascinating responsibility so
+unexpectedly thrust upon her. Her mind, too, was aflame with patriotic
+ardor, but coupled with these new sensations was a persisting sense of
+dread, an intangible, unforgettable feeling of horror that kept cropping
+up every time her fingers touched the little metal disk in her purse.
+
+The man who had carried it yesterday, the other "K-19" who had
+undertaken to shadow those people next door, now lay dead with a bullet
+through his heart. Was there, she wondered, a similar peril confronting
+her? Would her life be in danger, too? Was that the reason Mr. Fleck had
+told her of her predecessor's fate--to warn her how desperate were the
+men against whom she was to match her wits? Yet no sense of fear that
+projected itself into her busy brain as she cogitated over the task
+before her held her back. If anything she was rather thrilled at the
+prospect of meeting actual danger. What bothered her most was how she
+could best go about aiding Mr. Fleck and his men in their work.
+
+Her opportunity came far more quickly than she had anticipated. She had
+gotten off the train at the 96th Street station, purposing to walk the
+twenty odd blocks to her home as she pondered over the work that lay
+ahead of her. Busy with a horde of struggling new thoughts she proceeded
+along Broadway, for once in her life unheeding the rich gowns and
+feminine dainties so alluringly displayed in the shop windows. Suddenly
+she pulled herself together with a start. Directly ahead of her,
+plodding along in the same direction, was a figure that from behind
+seemed strangely familiar. She quickened her step until she caught up
+sufficiently with the man ahead to get a good glimpse of his side face.
+Nervously she caught her breath. Without any doubt it was the gray Van
+Dyke beard of old Otto Hoff.
+
+Where was he going? What was he doing? She paused and looked behind her,
+scanning the pavement on both sides of the street. She was half-hoping
+that she would discover Carter or some of his men shadowing their
+quarry, but her hope was vain. There was no one in the block at the
+moment but herself and Mr. Hoff. If Fleck's men had been watching his
+movements, the old man certainly seemed to have eluded them.
+
+What should she do? Vividly there flashed into her mind her chief's
+parting words.
+
+"Watch everything," he had charged her. "Remember everything, report
+everything. No detail is too unimportant. If you see one of the Hoffs
+leave the house, don't merely report to me that the old man or the young
+man left the house about three o'clock. That won't do at all. I want to
+know the exact time. Was it six minutes after three or eleven minutes
+after three? I must know what direction he went, if he was alone, how
+long he was absent, where he went, what he did, to whom he talked. Here
+in my office I take your reports, Carter's reports, a dozen other
+reports, and study them together. Things that in themselves seem
+trifling, unimportant, of no value, coupled with other seemingly
+unimportant trifles sometimes develop most important evidence."
+
+To prove his point he had told her of the seemingly innocent wireless
+message that an operator, listening in, had picked up, at a time when
+Germans were still permitted to use the wireless station on Long Island
+for commercial messages to the Fatherland. On the face of it, it was the
+mere announcement of the death of a relative with a few details. But a
+little later the same operator caught the same message coming from
+another part of the country, with the details slightly different, and
+still later another message of the same purport. Evidently, by comparing
+the messages, the United States authorities had been able to work out
+a code.
+
+Remembering this, Jane decided that it was her particular duty just now
+to follow the old German and note everything he did. For several blocks
+she trailed along behind him, without arousing any suspicion on his part
+that he was being followed. He stopped once to light a cigarette, the
+girl behind him diverting suspicion by hastily turning to a shop window.
+Again he stopped, this time before the display of viands in the window
+of a delicatessen store. Thoughtfully Jane noted the number, observing,
+too, that the name of the proprietor above the door was obviously
+Teutonic. She was half-expecting to see her quarry turn in here, but he
+walked on to the middle of the next block, where he entered a
+stationery store.
+
+Hesitating but a second, to decide on a course of action, she followed
+him boldly into the store. She felt that she must ascertain just what he
+was doing in there. As she entered she saw that in the back part of the
+store was a lending library. Mr. Hoff had gone back to it and was
+inspecting the books displayed there. Unhesitatingly she, too,
+approached the book counter.
+
+"Have you 'Limehouse Nights'?" she asked the attendant, naming the
+first book that came into her head. She had a copy of the book at home,
+but that seemed to be the only title she could think of.
+
+"We have several copies," the girl in charge answered, "but I think they
+are all out. I'll look."
+
+As the clerk examined the shelves, Jane kept up a desultory talk with
+her, questioning her about various books on the shelves, all the while
+watching the old German out of the corner of her eye. His back was
+toward her, and he seemed to be examining various books on the shelves,
+turning over the pages as if unable to decide what he wanted. Curious as
+to what his taste in reading was, Jane endeavored to locate each book
+that he removed from its place, her idea being that she would later try
+to discover their titles. To her amazement she found that it was
+invariably the third book in each shelf that he removed and
+examined--the third from the end. It did not appear to her that he was
+examining the contents of the pages so much as searching them as if he
+expected to find something there.
+
+All at once, as she furtively watched from behind him, she heard him
+give a little pleased grunt and she saw him picking out from between the
+leaves of the book a fragment of paper, which he held concealed in his
+hand. Watching closely, Jane saw him thrust this same hand into his
+trousers pocket, and when he brought it out she was certain that the
+hand was empty. What did this curious performance mean? What was the
+little slip of paper he had found in the book? Why had he concealed it
+in his pocket?
+
+Still keeping her attention riveted on him, she picked up a book to mask
+her occupation and pretended to be turning its pages. She was glad she
+had done so, for a minute later old Hoff wheeled suddenly and looked
+sharply about him. Apparently having his suspicions disarmed by seeing
+only herself and the clerk there, he turned again to the bookshelves.
+Jane this time saw him thrust his fingers into his waistcoat pocket and
+withdraw therefrom,--she was almost certain of it,--a little slip of
+paper. She saw him remove from the second row of books the fifth from
+the end, open it quickly and close it again and then restore it to its
+place. As he did so he turned to leave the store.
+
+"Didn't you find anything to read to-day, Mr. Hoff?" the clerk asked.
+
+"Nodding," he answered. "You keep novels, trash, nodding worth while."
+
+Her nerves aquiver, Jane waited until he was out of the store and then
+stepped briskly to the place where he had stood. Hastily she pulled
+forth the fifth book from the end in the second row. Turning its pages
+she came upon what she had anticipated,--a strip of yellow manila
+paper,--the paper she was sure she had seen him take from his pocket.
+Hastily she examined it, expecting to find some message written there.
+To her chagrin it was just a meaningless jumble of figures in
+three columns.
+
+ 534 5 2
+ 331 54 6
+ 644 76 3
+ 49 12 9
+ 540 30 12
+ 390 3 2
+ 519 3 6
+ 327 20 2
+
+ 97
+
+Her first thought was to thrust the little scrap of paper in her purse
+and start again in pursuit of old Hoff, but a sudden light began to dawn
+on her. This was a cipher message, of course. The old man had left it
+here for some one to come and get. If she followed Hoff, how was she to
+discover who the message was for? Puzzled as to what she should do, she
+borrowed a pencil from the clerk on the pretense of writing a postal and
+hastily copied the figures, after which she restored the slip to the
+book in which she had found it.
+
+Glancing about undecidedly, wondering if it would do to take the clerk
+into her confidence, wishing she had some means of reaching Mr. Fleck
+and asking his advice, she spied in a drug-store just across the street
+a telephone booth. She could telephone from there and at the same time
+keep her eye on the store. Quickly she did so, twisting her head around
+all the time she was 'phoning to make sure that no one entered opposite.
+
+"Is this Mr. Fleck?" she asked. "This is Miss Jones."
+
+"So soon?" came back his voice. "What has happened? What is the matter?
+Have you changed your mind?"
+
+"Not at all," she answered indignantly. "I've discovered something
+already--a cipher message."
+
+"What's that?"
+
+Even over the wire she could sense the eagerness in Mr. Fleck's tone,
+and a sense of achievement brought a radiant glow to her cheek.
+
+"I ran into that man--you know whom--"
+
+"The young one?" he interrupted.
+
+"No, the uncle."
+
+"Yes, yes, go on," cried Mr. Fleck impatiently.
+
+"I followed him along Broadway after I got off at 96th Street and into a
+library and stationery store. I watched him fuss over the books there,
+and I think he got a slip of paper with a message out of one of them."
+
+"Good," cried Mr. Fleck, "that is something new. Go on."
+
+"And then he slipped a paper into a book--"
+
+"Did you notice what book?"
+
+"I don't know the title. It was the fifth book from the end on the
+second shelf, and I got the paper and copied it."
+
+"Splendid. What did the message say?"
+
+"It's just a lot of figures. I put it back after copying it, and I am in
+a drug-store across the street where I can watch to see if any one comes
+to get the message. What shall I do now?"
+
+"Can you remain there fifteen minutes without arousing suspicion?"
+
+"Certainly. I'll say I am waiting for some one."
+
+"Good. I'll get in touch with Carter at once. He'll tell you what to do
+when he arrives."
+
+Impatiently Jane sat there, keeping vigilant watch on the entrance
+across the street, determined to be able to describe minutely each
+person that entered. From time to time she surreptitiously studied the
+postcard on which she had jotted down the mysterious numbers. How
+utterly meaningless they looked. Surely it would be impossible for any
+one, even Mr. Fleck, to decipher any message that these figures might
+convey. It would be impossible unless one had the key. Figures could be
+made to mean anything at all. She doubted if her discovery could be of
+much importance after all, yet certainly Mr. Fleck had seemed quite
+excited about it.
+
+She spied Carter passing in a taxi. Two other men were with him. Her
+first impulse was to run out in the street and signal to him, but she
+waited, wondering what she should do. She was glad she had not acted
+impulsively, for a moment later Carter entered alone, evidently having
+left the car somewhere around the corner. She expected that he would
+address her at once, but that was not Carter's way. He went to the soda
+counter and ordered something to drink, his eyes all the while studying
+his surroundings. Presently he pretended to discover her sitting there.
+To all appearances it might have been an entirely casual meeting of
+acquaintances.
+
+"Good-morning, Miss Jones," he said quite cordially, extending his hand.
+"I'm lucky to have met you, for my daughter gave me a message for you."
+
+He put just a little stress on the words "my daughter" and Jane
+understood that he was referring to "Mr. Fleck."
+
+"Indeed," she replied, "what is it?"
+
+"She wants you to go down-town at once and meet her at Room 708--you
+know the building."
+
+"Aren't you coming, too?"
+
+"Not right away. I have some errands to do in the neighborhood. I've got
+to buy a book for a birthday present. There's a library around here
+somewhere, isn't there?"
+
+"Just across the street," said Jane, entering into the spirit of the
+masked conversation with interest. "I was looking at a fine book over
+there a few minutes ago. You'll find it on the second shelf--the fifth
+book from the end, on the north side of the store."
+
+"I'll remember that," said Carter, repeating, "the fifth book on the
+second shelf."
+
+"That's right," said Jane, as they left the drug-store together.
+
+"Which way did the old man go?" asked Carter.
+
+"Down Broadway--toward home," she replied. "I wanted to follow him, but
+it seemed more important to stay here and watch to see if any one came
+for the message he left there in the book."
+
+"You did just right, and the Chief is tickled to death. He wants to see
+you right away. You have a copy of the message, haven't you?"
+
+"Yes, do you wish to see it?"
+
+"No, but he does. Has anybody entered the store since you were there?"
+
+"Nobody, that is no one but a couple of girls."
+
+"What did they look like? Describe them."
+
+"Why," Jane faltered, "I did not really notice. I was not looking for
+girls. I was watching to see that no other men entered the store."
+
+Carter shook his head.
+
+"You ought to have spotted them, too. You never can tell who the Germans
+will employ. They have women spies, too,--clever ones."
+
+"I never thought of their using girls," protested Jane.
+
+"Humph," snapped Carter, "ain't we using you? Ain't one of our best
+little operatives right this minute working in a nursegirl's garb
+pulling a baby carriage with a baby in it up and down Riverside Drive?
+Well, it can't be helped. You'd better beat it down-town to the Chief
+right away."
+
+"I'll take a subway express," said Jane, feeling somewhat crestfallen
+at his implied suggestion of failure.
+
+Twenty-five minutes later found her once more in Mr. Fleck's office.
+Thrilling with the excitement of it all she told him in detail how she
+had followed old Hoff and of his peculiar actions in the bookstore.
+
+"And here," she said, presenting the postcard, "is an exact copy of the
+cipher message he left there. I copied every figure, in the columns,
+just as they were set down. I don't suppose though you'll be able to
+make head or tail out of it. I know I can't."
+
+"Don't be too sure of that," smiled Chief Fleck, as he took the card.
+"When you get used to codes, most of them identify themselves at the
+first glance--at least they tell what kind of a code it is. That's one
+thing about the Germans that makes their spy work clumsy at times. They
+are so methodical that they commit everything to writing. Now the most
+important things I know are right in here"--he tapped his head. "Every
+once in a while they ransack my rooms, but they never find anything
+worth while. Now this code"--he was studying the card intently--"seems
+to be one of a sort that our friends from Wilhelmstrasse are
+ridiculously fond of using. It is manifestly a book code."
+
+"A book code," Jane repeated perplexedly. "I don't understand."
+
+"It is very simple when two persons who wish to communicate with each
+other secretly both have a copy of some book they have agreed to use.
+They write their message out and then go through the book locating the
+words of the message by page, line and word. That's what the three
+columns mean. Our only problem is to discover which is the book they
+both have. They often employ the Bible or a dictionary or--"
+
+He stopped abruptly and studied the columns of figures.
+
+"This code," he went on, "on its face is from a book that has at least
+544 pages. One of the pages has at least 76 lines--that's the middle
+column--so the book must be set in small type."
+
+"What book do you suppose it is?" asked Jane interestedly. She was glad
+now that she had listened to Carter. She was sure she was going to like
+being in the service. It was all so interesting, and she was learning so
+many fascinating things.
+
+"If my theory is right those letters indicate that the book used was an
+almanac. That's the book that Wilhelmstrasse made use of when a wireless
+message was sent in cipher to the German ambassador directing him to
+warn Americans not to sail on the Lusitania. They betrayed themselves at
+the Embassy by sending out to buy a copy of this almanac. Let's see how
+our theory works out."
+
+Taking up an almanac that lay on his desk he began turning to the pages
+indicated in the first column of figures, checking off the lines
+indicated in the second column and putting a ring around the words
+marked by the third column of figures.
+
+"Let's see--page 534--fifth line--second word--that's (eight). Now
+then--page 331--that's the chronology of the war in the almanac, so I
+guess we are on the right track--fifty-fourth line--sixth
+word--(transport)."
+
+"Isn't it wonderful!" cried Jane.
+
+"Damn them," he exploded. "I know we are on the right track. Some
+transports with our troops sailed this morning, and already the German
+spies are spreading the news, hoping to get it to one of their
+unspeakable U-boats."
+
+Quickly he ran through the rest of the cipher, writing it out as he went
+along:
+
+EIGHT--TRANSPORT--SAILED--THURSDAY--15,000--INFANTRY--FIVE DESTROYERS.
+
+As Fleck finished the message his face became almost black with rage.
+
+"Damn them," he cried again, "in spite of everything we do they get
+track of all our troop movements. Their information, whenever we succeed
+in intercepting it, is always accurate. If I had my way I'd lock up
+every German in the country until the war was over, and I'd shoot a lot
+of those I locked up. Until the whole country realizes that we are
+living in a nest of spies--that there are German spies all around us, in
+every city, in every factory, in every regiment, on every ship,
+everywhere right next door to us--this country never can win the war."
+
+"What does the '97' at the end mean?" questioned Jane timidly, a little
+bit frightened at his outburst, yet more than ever realizing the vast
+importance of his work--and hers.
+
+"Oh, that's nothing. Probably old Hoff's number. Most spies are known
+just by numbers."
+
+"Yes, of course," said Jane, flushing as she recalled that she herself
+was now "K-19." Was she a spy? Was Mr. Fleck a chief of spies? She
+always had looked on a spy as a despicable sort of person, yet surely
+the work in which they both were engaged was vital to American success
+at arms--a patriotic and important service for one's country.
+
+"I suppose," she said thoughtfully, unwilling to pursue the chain of her
+own thought any further, "that there is evidence enough now to arrest
+old Mr. Hoff right away."
+
+"You bet there is," said Mr. Fleck emphatically, "but that is the last
+thing I am thinking of doing yet. He is only one link in a great chain
+that extends from our battleships and transports there in the North
+River clear into the heart of Berlin. We've got to locate both ends of
+the chain before we start smashing the links. We've got to find who it
+is in this country that is supplying the money for all their nefarious
+work, from whom they get their orders, how they smuggle their news out.
+Most of all we have got to find where the end of the chain is fastened
+in our own navy. The traitors there are the black-hearted rascals I
+would most like to get. They are the ones we've got to get."
+
+"Yes, indeed," assented Jane, suddenly recalling the navy lieutenant she
+had seen in the Ritz chatting so confidentially with old Otto Hoff's
+nephew. Was he, she wondered, one of the links in the terrible chain?
+Was he the end--the American end of the chain?
+
+"We're certain about the old man now," said Fleck, rising as if to
+indicate that the interview was at an end. "We've got to get the young
+fellow next. There is nothing in this to implicate him. That's your job.
+Find out all you can about him. Get acquainted with him, if possible.
+That's one of the weakest spots about all German spies. They can't help
+boasting to women. Try to get to know this Fred Hoff. It's most
+important."
+
+"I'll do more than try," said Jane spiritedly. "I'll get acquainted
+right away. I'll make him talk to me."
+
+
+
+CHAPTER V
+
+ON THE TRAIL
+
+Few men, even fathers, realize how utterly inexperienced is the average
+well-brought-up girl, just emerged from her teens, in the affairs of the
+great mysterious world that lies about her. A boy, in his youth living
+over again the history of his progenitors, escapes his nurse to become
+an adventurer. At ten he is a pirate, at twelve a train robber, at
+fourteen an aviator, actually living in all his thoughts and experiences
+the life of his hero of the moment, learning all the while that the
+world about him is full of adventurers like himself, ready to dispute
+his claims at the slightest pretext, or to carry off his booty by
+prevailing physical force.
+
+Well-brought-up girls seldom are fortunate enough to have such educative
+experiences. Their friends are selected for them, gentle untaught
+creatures like themselves. Few of them learn much of the practical side
+of life. A boy is delighted at knowing the toughest boy in the
+neighborhood. A girl's ambitions always are to know girls "nicer" than
+she is. The average girl emerges into womanhood with her eyes blinded,
+uninformed on the affairs of life, business, politics, untrained in
+anything useful or practical, knowing more of romance and history than
+she does of present-day facts.
+
+If Chief Fleck had understood how really inexperienced Jane Strong
+actually was, it is a question whether he would have ventured to entrust
+so important a mission to her as he had done. Jane herself, as she left
+his office, aroused by his revelations of the treacherous work of
+Germany's spies, and uplifted by his appeal to her patriotism, felt
+enthusiastically capable of obeying his instructions. It seemed very
+simple, as he had talked about it. All she had to do was to get
+acquainted with the young man next door. Yet the further the subway
+carried her from Mr. Fleck's office after her second visit there that
+morning, the more her heart sank within her, and the fuller her mind
+became of misgivings.
+
+In a big city next door in an apartment house is almost the same thing
+as miles away. She ransacked her brain, trying to remember some
+acquaintance who might be likely to know the Hoffs, but failed utterly
+to recall any one. She reviewed all possible means of getting acquainted
+but could find none that seemed practical. Never in her life had she
+spoken to a man without having been introduced to him--except of course
+to Carter and Mr. Fleck, and these men, she told herself, were
+government officials, something like policemen, only nicer. At any rate,
+she knew them only in a business way, not socially. If she was to be
+successful in learning much about the Hoffs--about young Mr. Hoff--she
+felt that it was necessary to make them social acquaintances.
+
+She must manage to meet Frederic Hoff in some proper way, but how? She
+thought of such flimsy tricks as dropping a handkerchief or a purse in
+the elevator some time when he happened to be in it, but rejected the
+plan as disadvantageous. "Nice" girls did not do that sort of thing, and
+even though she was seeking to entrap her neighbor she did not for a
+moment wish him to consider her as belonging to the other sort. It
+rather annoyed her to find that she cared what kind of an impression she
+made on him. What difference did it make what a German spy thought of
+her, especially a murderer? Yet, she argued with herself, the better the
+impression she made at first the more likely she would be to gain his
+confidence, and that she knew would delight Mr. Fleck. Was Frederic
+Hoff, too, really, she wondered, a spy? Her face colored as she recalled
+the mental picture she last had had of him, gallantly and admiringly
+raising his cup to her as she left the Ritz, not obtrusively or
+impudently, but so subtly that she was sure that no one had observed it
+but herself. It seemed preposterous to associate the thought of murder
+with a man like him.
+
+As she entered the apartment house she was arguing still with herself
+about him. Her intuition told her that Frederic Hoff was a gentleman,
+and how could a gentleman be what Mr. Fleck seemed to think he was? As
+the door swung to behind her she gave a little quick breath of delight,
+for she had caught sight of a uniformed figure standing by the
+switchboard. She had recognized him at once. It was the naval
+lieutenant who had been at the Ritz. She heard him saying to the girl at
+the switchboard:
+
+"Tell Mr. Hoff, young Mr. Hoff, that Lieutenant Kramer is here. I'll
+wait for him down-stairs."
+
+Quick as a flash a course of action came into her mind. She saw an
+opportunity too good to be neglected. She hurried forward to where the
+lieutenant was standing, her hand outstretched, with a smile of
+recognition--feigned, but well-feigned--on her lips.
+
+"Why, Lieutenant Kramer," she cried, "how delightful. Have you really
+kept your promise at last and come to see the Strongs?"
+
+She could hardly restrain her amusement as she watched the embarrassed
+young officer strive in vain to recall where it was that he had met her.
+She had relied on the fact that the men in the navy meet so many girls
+at social functions that it is impossible for any of them to remember
+all they had met.
+
+"Really, Miss--" he stammered, struggling for some fitting explanation.
+
+"Don't tell me," she warned reprovingly, "that it isn't Jane Strong
+that you are here to see, after all those nice things you said to me
+that day we had tea aboard your ship."
+
+She was hoping he would not insist on going into particulars as to which
+ship it was. Fortunately she had been to functions on several of the war
+vessels, so that she might find a loop-hole if he was too insistent
+on details.
+
+"Indeed, Miss Strong," said Kramer, gallantly pretending to recall her,
+"I'm delighted to see you again. I've been intending to come to see you
+for ever so long, but you understand how busy we are now. In fact, it
+was business that brought me here to-day. I'm calling on Mr. Hoff, who
+lives here, to take him to lunch to discuss some important matters."
+
+At his last phrase Jane's heart thrilled. What important matters could
+there be that a navy lieutenant could fittingly discuss with a German,
+with the nephew of the man whose secret code message they had just
+succeeded in reading? Determining within herself to keep fast hold on
+the beginning she had made, she masked her real thoughts and let her
+face express frank disappointment.
+
+"How horrid of you," she continued, "when I was just going to insist
+that you stay and have luncheon with us."
+
+He was protesting that it was quite out of the question when the
+elevator brought down her mother, whom Jane at once summoned as an ally,
+feeling sure that considering how many men of her daughter's
+acquaintance she had met, it would be perfectly safe to keep up the
+deception.
+
+"Oh, mother," she cried, "you remember Lieutenant Kramer, don't you?
+I've just been urging him to stay and have luncheon with us. Do help me
+persuade him."
+
+"Of course I remember Mr. Kramer," fibbed the matron cordially, all
+unaware of her daughter's duplicity. "Do stay, Mr. Kramer, and have
+luncheon with Jane. I ordered luncheon for four, expecting to be home,
+and now I've been called away, but your aunt is there to chaperone you.
+It spoils the servants so to prepare meals and have no one to eat them,
+to say nothing of displeasing Mr. Hoover. It's really your duty--your
+duty as a patriot--to stay and prevent a food-waste."
+
+"I've just been trying to explain to your daughter that I was taking
+Mr. Hoff to luncheon with me. Here he is now."
+
+Mrs. Strong's eyes swept the tall figure approaching appraisingly and
+apparently was pleased with his aspect. As Mr. Hoff was presented she
+hastened to include him in the invitation to luncheon.
+
+"Have pity on a poor girl doomed to eat a lonely luncheon by her
+parent's neglect," urged Jane. "Really, you must come, both of you. Nice
+men to talk to are so scarce in these war times that I have no intention
+of letting you escape."
+
+"I'm in Kramer's hands," said Frederic Hoff gallantly, "but if he takes
+me to some wretched hotel instead of accepting such a charming
+invitation as this, my opinion of him as a host will be shattered."
+
+"But," struggled Kramer, realizing that it must be a case of mistaken
+identity and sure now that he never had met either Jane or her mother
+before, "we have some business to talk over."
+
+"Business always can wait a fair lady's pleasure," said Hoff. "Is this
+ruthless war making you navy men ungallant?"
+
+With a mock gesture of surrender, and as a matter of fact, not at all
+averse to pursuing the adventure further, Lieutenant Kramer permitted
+Jane to lead the way to the Strong apartment.
+
+Soon, with the familiarity of youth and high spirits, the three of them
+were merrily chatting on the weather, the war, the theater and all
+manner of things. Jane, in the midst of the conversation, could not help
+noting that Hoff had seated himself in a chair by the window where he
+seemed to be keeping a vigilant eye on the ships that could be seen from
+there. Even at the luncheon table he got up once and walked to the
+window to look out, making some clumsy excuse about the beautiful view.
+
+Determined to press the opportunity, Jane endeavored to turn the
+conversation into personal channels.
+
+"You are an American," she said turning to Hoff, "are you not? I'm
+surprised that you are not in uniform, too."
+
+"A man does not necessarily need to be in uniform to be serving his
+government," he replied. "Perhaps I am doing something more important."
+
+"But you are an American, aren't you?" she persisted almost impudently,
+driven on by her eagerness to learn all she possibly could about him.
+
+"I was born in Cincinnati," he replied hesitantly.
+
+She could not help observing how diplomatically he had parried both her
+questions. Mentally she recorded his exact words with the idea in her
+mind of repeating what he had said verbatim to her chief.
+
+"Then you _are_ doing work for the government?"
+
+Intensely she waited for his answer. Surely he could find no way of
+evading such a direct inquiry as this.
+
+"Every man who believes in his own country," he answered, modestly
+enough, yet with a curious reservation that puzzled her, "in times like
+these is doing his bit."
+
+She felt far from satisfied. If he was born in America, if he really was
+an American at heart, his replies would have been reassuring, but his
+name was Hoff. His uncle was a German-American, a proved spy or at least
+a messenger for spies. If her guest still considered Prussia his
+fatherland the answers he had made would fit equally well.
+
+"You're just as provokingly secretive as these navy men," she taunted
+him. "When I try to find out now where any of my friends in the navy are
+stationed they won't tell me a thing, will they, Mr. Kramer?"
+
+"I'll tell you where they all are," said Lieutenant Kramer. "Every
+letter I've had from abroad recently from chaps in the service has had
+the same address--'A deleted port.'"
+
+"I really think the government is far too strict about it," she
+continued. "My only brother is over there now fighting. All we know is
+that he is 'Somewhere in France.' War makes it hard on all of us."
+
+"Yet after all," said Hoff soberly, "what are our hardships here
+compared to what people are suffering over there, in France, in Belgium,
+in Germany, even in the neutral countries. They know over there, they
+have known for three years, greater horrors than we can imagine."
+
+The longer she chatted with him, the more puzzled Jane became. He
+seemed to speak with sincerity and feeling. Her intuition told her that
+he was a man of honor and high ideals, and yet in everything he said
+there was always reserve, hesitation, caution, as if he weighed every
+word before uttering it. Intently she listened, hoping to catch some
+intonation, some awkward arrangement of words that might betray his
+tongue for German, but the English he spoke was perfect--not the English
+of the United States nor yet of England, but rather the manner of speech
+that one hears from the world-traveler. Question after question she put,
+hoping to trap him into some admission, but skilfully he eluded her
+efforts. She decided at last to try more direct tactics.
+
+"Your name has a German sound. It is German, isn't it?" she asked.
+
+"I told you I was born in Cincinnati," he answered laughingly. "Some
+people insist that that is a German province."
+
+"But you have been in Germany, haven't you?"
+
+"Why do you ask?"
+
+"I was wondering if you had not lived in that country?"
+
+"I could not well have been there without having lived there, could I?"
+
+Kramer came to her rescue.
+
+"Of course he has lived there. Mr. Hoff and I both attended German
+universities. That was what brought us together at the start--our
+common bond."
+
+"Did you attend the same university?" asked Jane. She felt that at last
+she was on the point of finding out something worth while.
+
+"No," said Kramer, "unfortunately it was not the same university."
+
+She caught her breath and blushed guiltily. If Mr. Kramer had attended a
+German university he could not be an Annapolis graduate. He must be a
+recent comer in the American navy. She knew that since the war began
+some civilians had been admitted. It had just dawned on her that if this
+was the case, since visiting on board ships was no longer permitted, it
+clearly was impossible for her to have met him at any function on a
+warship. He must have known all along that she knew she never had met
+him. He must have been aware, too, that her mother did not know him.
+She felt that she was getting into perilous waters and fearful of making
+more blunders refrained from further questions. A vague alarm began to
+agitate her. If he had detected her ruse when she first had spoken to
+him, why had he not admitted it? What had been his purpose in accepting
+her invitation and in bringing into it his German friend, Mr. Hoff?
+
+The ringing of the telephone bell came as a welcome interruption. A maid
+summoned her to answer a call, and excusing herself from the table she
+went to the 'phone desk in the foyer.
+
+"Hello, is this you, Miss Strong?"
+
+It was Carter's voice, but from the anxious stress in it she judged that
+he was in a state of great perturbation.
+
+"Yes, it is Jane Strong speaking," she answered.
+
+"You know who this is?"
+
+"Of course. I recognize your voice. It's Mr. C--"
+
+A warning "sst" over the 'phone checked her before she pronounced the
+name and starting guiltily she turned to look over her shoulder,
+feeling relieved to see the two men still chatting at the table,
+apparently paying no attention to her.
+
+"I understand," she answered quickly. "What is it?"
+
+"You know that book I told you I was going to buy?"
+
+"Yes, yes!"
+
+"It's not there."
+
+"What's that? The book is gone!"
+
+"The book is there all right, but it's not the book I want."
+
+"Are you sure," she questioned, "that you looked at the right book?"
+
+"I looked at the one you told me to."
+
+"Are you certain--the fifth book on the second shelf."
+
+She heard a movement behind her and turning quickly saw Frederic Hoff
+standing behind her, his hat and stick in hand. Panic-stricken, she hung
+up the receiver abruptly. Had he been standing there listening? How much
+had he heard? He would know, of course, what "the fifth book on the
+second shelf" signified. Had her carelessness betrayed to him the fact
+that he and his uncle were being closely watched? Anxiously she studied
+his face for some intimation of his thoughts. He was standing there
+smiling at her, and to her agitated brain it seemed that in his smile
+there was something sardonic, defying, challenging.
+
+"I cannot tell you, Miss Strong, how much I have enjoyed your
+hospitality. You made the time so interesting that I had no idea it was
+so late. You will excuse me if I tear myself away at once. I have some
+important business that demands my immediate attention."
+
+"I hope you'll come again," she managed to stammer, "and you, too, Mr.
+Kramer."
+
+White-faced and terrified she escorted them out, leaving the telephone
+bell jangling angrily. As the door closed behind them, she sank weak and
+faint into a chair, not daring yet to go again to the 'phone until she
+was sure they were out of hearing.
+
+What was the "immediate business" that was calling them away so
+suddenly? She was more than afraid that her incautious use of the phrase
+"the fifth book on the second shelf" had betrayed her. What else could
+it mean? Why else would they have departed so abruptly?
+
+Mustering up her strength and courage she went once more to the 'phone.
+
+"Hello, hello, is that you, Miss Strong? Some one cut us off," Carter's
+voice was impatiently saying.
+
+"Hello, Mr. Carter," she called, "this is Jane Strong speaking. Where
+can I see you at once? It's most important."
+
+"I'll be sitting on a bench along the Drive two blocks north of your
+house inside of ten minutes."
+
+"I'll meet you there," she answered quickly, with a feeling of relief.
+
+The situation was becoming far too complicated, she felt, for her to
+handle alone. Carter would know what to do. If Hoff and Kramer had
+learned from her about the trailing of old Hoff, the sooner it was
+reported to more experienced operatives than she was the better.
+
+"Don't speak to me when you see me sitting on the bench," warned Carter.
+"Just sit down there beside me and wait till I make sure no one is
+watching us. I'll speak to you when it's safe."
+
+"I understand," she answered. "Good-by."
+
+As she hastened to don her hat and coat she was almost overwhelmed by a
+revulsion of feeling. Two days ago the world about her had seemed a
+carefree, pleasant, even if sometimes boresome place. Now she
+shudderingly saw it stripped of its mask and revealed for the first time
+in all its hideousness, a place of murders and spying and secret
+machinations. People about her were no longer more or less interesting
+puppets in a play-world. They were vivid actualities, scheming and
+planning to thwart and overcome each other. Almost she wished that her
+dream had been undisturbed and that she had not been waked up to the
+realities. Almost she was tempted to abandon her new-found occupation.
+
+Then, once more, a feeling of patriotic fervor swept over her. She
+thought of her brother fighting somewhere in the trenches. She pictured
+to herself the other brave soldiers in the great ships in the Hudson.
+She remembered the evil plotters with their death-dealing bombs,
+striving to bring about a ghastly end for them all before they might
+strengthen the lines of the Allies. She thought, too, of those
+humanity-defying U-boats, forever at their devilish work, guided to
+their prey by crafty, spying creatures right here in New York, more than
+likely by the very people next door.
+
+With her pretty lips set in a resolute line she left the house and
+walked rapidly north. Come what may she would go on with it. Her country
+needed her, and that was all-sufficient.
+
+
+
+CHAPTER VI
+
+THE MISSING MESSAGE
+
+After Jane left Carter at the drug-store, he did not cross immediately
+to the bookshop opposite. His detective work was not of that sort. He
+strolled leisurely around the corner long enough to give some directions
+to his two aides waiting there and then, moving across the street,
+paused in front of the window of books as if something there had
+attracted his attention. All the while he was keeping a sharp eye for
+any person who looked as if they might be connected in any way with old
+Hoff. Satisfied that his entrance was unobserved he strolled casually in
+and began looking over the volumes in the lending library. The lone
+clerk in the store--a young woman--at first volunteered some
+suggestions, but as they went unheeded she returned to her work of
+posting up the accounts.
+
+As soon as her attention was occupied Carter moved at once to the end
+of the shelf that Miss Strong had indicated and removed the fifth book.
+To his amazement he found nothing whatever concealed between the leaves.
+The books on either side on the same shelf failed to yield up anything.
+He tried the shelf above and the shelf below. Perhaps Miss Strong had
+been mistaken in the directions. He examined the books at the other end.
+There was nothing there. He recalled that the girl had said that no one
+except two girls had entered the store between the time she had
+discovered and copied the cipher and the time of his arrival. If these
+girls had not taken the message away there could be only one other
+explanation--the clerk in the bookstore must have removed it and
+concealed it somewhere.
+
+"Which of the war books do you think the best?" he asked for the purpose
+of starting a conversation.
+
+"There's that many it is hard to say, sir," the young woman answered.
+
+Something in her inflection made him look sharply at her. Her accent
+surely was English, or possibly Canadian. A few judicious questions
+quickly brought out the information that she came from Liverpool and
+that she had three brothers in the British army. Carter decided that it
+was preposterous to suspect her of being in league with German agents.
+There was only one other thing that could have happened. Some one
+else--some one who had eluded Miss Strong's notice--had removed the
+cipher message.
+
+Promptly he had telephoned to her to meet him. He was glad that he had
+done so, for her evident perturbation as she answered the 'phone both
+interested and puzzled him. Pausing just long enough to report to Chief
+Fleck, he hastened to the rendezvous, arriving there first. He selected
+a bench apart from the others, where the wall jutted out from the walk,
+and seating himself, idled there as if merely watching the river. In
+obedience with his instructions Jane, when she arrived, planted herself
+nonchalantly on the same bench, and paying no attention to him,
+pretended to be reading a letter.
+
+Presently Carter rose and stretching himself lazily, as if about to
+leave, turned to face the Drive, his keen eyes taking in all the
+passers-by. Apparently satisfied, he sat down abruptly and turned to
+speak to the girl beside him.
+
+"All right, K-19," he said, "it's safe. Now we can talk."
+
+"I've got such a lot to tell," cried Jane.
+
+"First," said Carter, "just where did you put that cipher message when
+you put it back?"
+
+"What!" cried the girl, her face blanching, "wasn't it there? Didn't you
+find it?"
+
+Carter shook his head.
+
+"It must be there," she insisted. "Are you sure you looked in the right
+book--the fifth book from the end on the second shelf on the up-town
+side of the store."
+
+"It's not there. I examined every book there, on the shelves above and
+below and at the other end, too."
+
+"The clerk in the store, that girl--must have hidden it," cried Jane
+with conviction.
+
+"That's not likely. She's an English girl--from Liverpool. She has three
+brothers fighting on the Allies' side. We can leave her out of it."
+
+"Who else could have taken it?"
+
+"There's only one answer," said Carter slowly and impressively. "Some
+one went into that store between the time you copied the message and
+the time I met you at the drug-store. You told me no one but a couple of
+girls had entered. Was there any one else? Think--think!"
+
+"There was no one," said Jane thoughtfully, "no one except the two girls
+together. I never thought of suspecting them."
+
+"What did they look like? Could you identify them?"
+
+"I did not notice them particularly," Jane confessed. "I was expecting
+Mr. Hoff's confederate to be a man."
+
+"They're using a lot of women spies," asserted Carter. "Don't you
+remember what the girls looked like?"
+
+"One of them," said Jane thoughtfully, "wore an odd-shaped hat, a sort
+of a tam with a red feather."
+
+"Would you know the hat again if you saw it?"
+
+"I think--I'm sure I would."
+
+"Well, that's something. Watch for that hat, and if you ever see it
+again trail the girl till you find out where she lives. If you locate
+her telephone Mr. Fleck at once. And now, what has happened to you?"
+
+"I've so much to tell, important, very important, I think."
+
+She hesitated, wondering how much Carter was in the chief's confidence.
+Did he know the import of the cipher message she had discovered? Ought
+she to talk freely to him?
+
+"Do you know what those numbers meant?" she asked.
+
+"Yes," he replied, "about the eight transports sailing. The Chief told
+me about it."
+
+"Well," she said, with a sigh of relief, "I have become acquainted with
+young Mr. Hoff already. I've just had luncheon with him."
+
+"That's fine," he cried enthusiastically. "A lucky day it was I ran
+across you."
+
+"When you 'phoned me he was there in our apartment, he and a navy
+lieutenant, Mr. Kramer."
+
+Attentively he listened as she told of the ruse by which she had
+inveigled them into coming to luncheon, reminding him that it was the
+same naval officer that he himself had seen in close conversation with
+Hoff at the Ritz the day before. He nodded his head in a satisfied way.
+
+"They are together too much to be up to any good," he commented. "Tell
+me the rest. What made you so rattled when I 'phoned you?"
+
+He listened intently as she told of finding young Hoff standing right
+behind her as she had inadvertently mentioned aloud "the fifth book."
+
+"Do you suppose," she questioned anxiously, "that he overheard me and
+understood what we were talking about? He left right away after that. I
+do hope I didn't betray the fact that they are being watched."
+
+"We can't tell yet," said Carter. "The precautions they take and the
+roundabout methods they have of communicating with each other show that
+all Germany's spies constantly act as if they knew they were under
+surveillance. In fact, I suppose every German in this country, whether
+he is a spy or not, can't help but notice that his neighbors are
+watching him--and well they might."
+
+"I don't see why," cried Jane, "Mr. Fleck did not have old Mr. Hoff
+locked up right away. He could not do any more damage then, or be
+sending any more messages about our transports."
+
+"That wouldn't have done the least bit of good," said Carter decisively.
+"Watching our transports sail and spreading the news is only one of many
+of their activities. Somewhere in this country there is a master-council
+of German plotters, directing the secret movements of many hundreds,
+perhaps many thousands of spies and secret agents. They have their work
+well mapped out. They have men fomenting strikes in the government
+shipyards and stirring up all kinds of labor troubles. Others are busy
+making bombs and contriving diabolical methods of crippling the
+machinery in munition plants. A flourishing trade in false passports is
+being carried on, enabling their spies to travel back and forth across
+the Atlantic in the guise of American business men, ambulance drivers,
+Red Cross workers and what not. Still others of their agents are
+detailed to arrange for the shipping of the supplies Germany needs to
+neutral countries. By watching shipping closely they gather information,
+too, that is of value to the U-boat commanders. Every time there is any
+sort of activity against the draft, or peace meetings, or Irish
+agitation, we find traces of German handiwork. We have dismantled and
+sealed up every wireless plant we could find in America except those
+under direct government control, yet we are positive that every day
+wireless messages go from this country somewhere--perhaps to Mexico or
+South America, and from there are relayed to Germany, probably by way of
+Spain. Think of the enormous amount of money required to finance these
+operations and keep all these spies under pay. While we try to thwart
+their plans as we find them, all our efforts are constantly directed
+toward discovering who controls and finances their damnable system. We
+seldom if ever arrest any of the spies we track down, but keep watching,
+watching, watching, hoping that sooner or later the master-spy will be
+betrayed into our hands."
+
+"You don't think then," said Jane disappointedly, "that old Mr. Hoff is
+one of the important spies."
+
+"We can't tell yet. He may be just one of the cogs--perhaps what they
+call a control-agent. We don't know yet. Germany has been building up
+her spy system forty years, and it is ingenious beyond imagination. Her
+codes are the most difficult in the world. It took the French three
+years and a half to decipher a code despatch from Von Bethmann Hollweg
+to Baron von Schoen. By the time they had it deciphered in Paris the
+Germans had discovered what they were doing and had changed the code. It
+is seldom any one of the German spies knows much about the work that
+other spies are doing. The rank and file merely get orders to go and do
+such a thing, or find out about such a thing. Often they are not told
+what they are doing it for. They obey their orders implicitly in detail
+and make their reports, get new orders and go on to do something else.
+Only their master spy-council here knows what the summary of their
+efforts amounts to. Arresting old Hoff, or a dozen more like him, would
+not cripple them much. Other men would be assigned in their places, and
+the nefarious work would go on."
+
+"I don't know," insisted Jane thoughtfully. "I believe that old Mr. Hoff
+is a far bigger spoke in the wheel than you think. I watched his face as
+I followed him this morning. He is a man of great intelligence, and I
+should judge a man of education."
+
+"They'd hardly be using a man of that sort to carry messages," objected
+Carter. "Maybe you're right. We have not watched him long enough to find
+out. We've got nothing yet on the young fellow. Maybe he's the real boss
+of the outfit. At any rate he is the one the Chief is anxious to have
+you keep tabs on. Are you to see him again?"
+
+"Oh, yes," the girl answered quickly, a touch of color coming to her
+face, "I think so. I asked him to come to see me. I think--in fact I'm
+sure--he will. Do you want me to watch the bookshop to see if they leave
+any more messages there?"
+
+"No," said Carter. "I've got one of my men assigned to that. You keep
+after the young fellow. Say, does your father keep an automobile?"
+
+"Yes, but it's been put up for the winter. We're going to bring it out
+as soon as Dad can find a chauffeur. Our man--the one we had last
+year--has been drafted, and good chauffeurs are scarce now. Why did
+you ask?"
+
+"I'll find you a chauffeur," said Carter decisively.
+
+"You mean"--Jane hesitated--"a detective?"
+
+Carter grinned.
+
+"An agent like you and me. K-27 is an expert chauffeur and mechanic with
+fine references. His last job was with the British High Commission, and
+they gave him good testimonials."
+
+"What do you want him to do?"
+
+"Driving the Strong car makes a good excuse for him to be around without
+exciting suspicion. He might even come up-stairs once in a while to get
+orders or do little repair jobs around the apartment. Some day,
+supposing the people next door were all out, he might even succeed in
+planting a dictograph so that you could sit there in your room and hear
+all that was going on and what the Hoffs talked about. That would help a
+lot. If ever he was caught prowling about the hall, the fact that he was
+your chauffeur would provide him with an alibi. Do you think you can fix
+it up with your father?"
+
+"I'm sure of it. When can he come?"
+
+"The sooner the better--to-night--to-morrow."
+
+"I'll tell Dad at dinner to-night that I've learned of a good chauffeur
+and have asked him to come in at eight this evening."
+
+"Fine," said Carter. "He'll be there. And don't forget to report once a
+day to the Chief."
+
+"I won't."
+
+"And if anything unexpected turns up," said Carter, "and you need help,
+take a good look at that nurse that is passing."
+
+Jane turned curiously to inspect a buxom girl in a drab nurse's costume
+who was wheeling a baby carriage along the sidewalk near-by. Seeing
+herself observed the girl stopped, and at a sign from Carter wheeled her
+charge up to where they were standing.
+
+"K-22," said Carter, "I want to introduce you to K-19."
+
+Gravely the two girls, nodding, inspected each other.
+
+"She always wears a blue bow at her neck," Carter added, "so you can
+recognize her by that."
+
+The girl smilingly nodded again and wheeled the carriage on up the
+Drive.
+
+"Who is she?" Jane asked eagerly, turning to Carter.
+
+"Just K-22," said the agent, "and all she knows about you is that you
+are K-19. That's the way we work in the service mostly. The less one
+operative knows about another the better, for what you don't know you
+can't talk about."
+
+"Doesn't she even know my name?" persisted Jane.
+
+"She may have found it out for herself while she has been watching the
+Hoffs, but we didn't tell her. Nobody in the service knows who you are
+except the Chief and myself--and of course K-27 will have to know if he
+takes the chauffeur's job."
+
+"What is his name?"
+
+"I don't know yet," said Carter gravely. "I haven't seen his references,
+so I don't know what name they are made out in. You can find out what to
+call him when he reports to-night. You'll see that he gets the job?"
+
+"Indeed I will," answered Jane, experiencing a sense of relief at the
+prospect of having some one at hand in the household with whom she could
+discuss her activities.
+
+And as she had anticipated she had little difficulty in interesting her
+father in the subject of a new chauffeur. Mr. Strong for several days
+had been trying to find one without success.
+
+"You say this man's last place was with the British High Commission."
+
+"Some one of the girls was telling me," she prevaricated. "I asked her
+to tell him to come here to-night at eight. He ought to be here
+any minute."
+
+Presently the candidate for the place was announced.
+
+"Mr. Thomas Dean to see about a chauffeur's position," the maid said as
+she brought him in, and while her father questioned him, Jane studied
+him carefully.
+
+He could not be more than thirty, she decided, and the voice in which he
+answered her father's questions was surely a cultivated one. It would
+not have surprised her in the least to have learned that he was a
+college man. Even in his neat chauffeur's uniform he seemed every inch
+a gentleman. He had been driving a car for twelve years, he explained.
+No, he did not drink and had never been arrested for speeding.
+
+"Are you a married man?"
+
+Jane listened curiously for his answer to this question of her father's.
+Surely it would be far more interesting if he wasn't. Of course, he was
+a chauffeur and a detective, but somehow she could not help feeling,
+perhaps because of his easy manner, that more than likely most of the
+cars he had driven were cars that he himself had owned. K-27 she decided
+was going to be quite a satisfactory partner to work with.
+
+"There's just one thing," said her father. "You say you are not married.
+I can't understand why it is that you are not in the army."
+
+"I am not eligible," said Thomas Dean calmly, though Jane thought she
+could detect a twinkle in his eye. "One of my legs has been broken in
+three places."
+
+"But there are things a young fellow can do for his country besides
+marching," insisted Mr. Strong. "The government needs mechanics, too."
+
+"I know," said Thomas Dean, almost humbly, "but I have a mother, and my
+father is dead."
+
+Jane smiled a little to herself at his answer. She noted how carefully
+he had avoided saying anything about having a mother to support. It
+would not have surprised her in the least to have learned that he was a
+millionaire, yet her father, ordinarily shrewd in judging men,
+apparently was satisfied.
+
+"Supporting a mother, I suppose, comes first," he said. "Well, Dean,
+when can you come?"
+
+"To-morrow morning if you like," the new chauffeur answered, nodding
+gravely to Jane as he withdrew.
+
+Mr. Strong, as soon as they were alone, spoke enthusiastically about the
+young man, complimenting Jane on having discovered him, and as he did so
+a revulsion of feeling swept over her. For the first time she realized
+into what duplicity her work for the government was leading her. She had
+pledged her word to Chief Fleck that she would keep her activities an
+absolute secret even from her parents. Already she was deceiving them,
+bringing into the household an employee who really was a detective, a
+spy. She was tempted to tell her father, at least, what she was doing.
+He, she knew, was filled with a high spirit of patriotism. While he
+might not wholly approve of what she herself was doing she might be able
+to convince him of the necessity of it. If she could only tell him, her
+conscience would not trouble her, but there was her promise--her sacred
+promise; she couldn't break that.
+
+While with troubled mind she debated with herself between her duty to
+her parents and her duty to her country, one of the maids came in with a
+box of flowers for her.
+
+Eagerly she cut the string and opened the box. Chief Fleck especially
+wanted her to cultivate young Hoff's acquaintance. If her suspicion as
+to the sender were correct, she could feel that she had made an
+auspicious beginning.
+
+In a tremor of excitement she snatched off the lid of the box and tore
+out the accompanying card from its envelope.
+
+"Mr. Frederic Johann Hoff," it read, "in appreciation of a most
+profitable afternoon."
+
+Wondering at the peculiar sentiment of the card she tore off the
+enclosing tissue paper from the flowers. Orchids, wonderful, delicately
+tinted orchids, nestled in a sheaf of feathery green fern--five of them.
+
+"Five orchids--the fifth book--a profitable afternoon."
+
+Jane felt sure now she had betrayed the government's watchers to at
+least one of the watched.
+
+
+
+CHAPTER VII
+
+THE WOMAN ON THE ROOF
+
+It is amazing how much information on any given subject any one--even a
+wholly inexperienced person like Jane Strong--can acquire within a few
+days when one's mind is set resolutely to the task. It is much more
+amazing how much one can learn when aided and abetted by an experienced
+chauffeur, or more properly speaking a mysterious and cultured secret
+service operative, masquerading as an automobile driver.
+
+Who Thomas Dean was, why he was in the secret service, and what his real
+name was, were questions that kept perpetually puzzling Jane. In the
+presence of her father and mother, so skilful an actor was he that it
+was hard to believe him anything but what he appeared to be, a
+respectful, intelligent and prompt young man who knew the traffic
+regulations and the anatomy of automobiles. When he and Jane were by
+themselves he invariably threw off his mask to some extent. He became
+the director instead of the directed, though never letting anything of
+the personal relation creep in. That he was college-bred, Jane felt
+certain. He spoke both German and French much better than she did. He
+occasionally used words that no ordinary chauffeur would be likely to
+know the meaning of. Sharing the secret of such a mission as theirs,
+they quickly found themselves on a friendly basis, yet the girl
+hesitated whenever her curiosity prompted her to try to find out
+anything that would reveal his identity. There was always present the
+feeling that any exhibition of undue curiosity on her part would be a
+disappointment to her employer. The chief disapproved of curiosity
+except on one subject--what the Germans were doing.
+
+Many things Jane and her aide learned about the Hoffs in the days
+following Thomas Dean's coming, reporting them all as directed. Of how
+much or of how little value her discoveries were Jane had no means of
+knowing. Chief Fleck seemed satisfied but was always urging her to
+acquire more information and more details, always details. Dean, too,
+had seconded the warning about observing even what seemed to be
+insignificant trifles.
+
+"Most of the Germans," he said to her, "you will find are very
+methodical. They like to do things according to schedule. For instance,
+I learned yesterday that old Hoff and his nephew frequently go off on
+all-day automobile trips. They always go on Wednesday."
+
+"Are they going to-morrow?"
+
+"The presumption is that they will. They have done so every Wednesday
+for six weeks."
+
+"Can't we follow them in our car?" cried the girl, "and see what they
+are up to?"
+
+Dean shook his head.
+
+"The Chief is looking out for that. There is more important work for us
+to do right here. I want to try to install a dictograph in their
+apartment."
+
+"How exciting."
+
+"You must find some excuse for me to come up into your apartment and see
+to it that none of your people are about."
+
+"That will be easy. Mother and Aunt will be out all day, and it is
+cook's afternoon off. I can easily send the maids out."
+
+"But that's not all. There is the Hoffs' servant to be disposed of."
+
+"I don't see how I can manage that," said Jane. She could think of no
+possible way of overcoming that difficulty.
+
+"She's an old German woman--Lena Kraus," continued Dean. "I've found out
+that she always washes on Wednesdays. When she goes up on the roof in
+the afternoon to get the clothes will be our time. It will be your job
+to see that she stays there until I am through. It will not take me more
+than half an hour."
+
+"But what will I do if she starts to come down? How will I stop her?"
+
+"You'll have to use your wits. Keep her talking as long as you can. When
+she starts down come with her. Press the elevator button four times.
+I'll leave the door of the Hoff apartment open and very likely will hear
+it in time to get away."
+
+"But how'll you get their door open?"
+
+Dean smilingly drew forth a key.
+
+"I borrowed the superintendent's bunch last night, pretending I had lost
+the key to my locker in the basement. I knew he had a master-key that
+unlocks all the apartment doors, and there was no trouble in picking it
+out. I had some wax in my hand and made an impression of it right under
+his nose."
+
+"How clever," cried Jane, "but suppose the Hoffs do not go off
+to-morrow. What will we do then?"
+
+"You are taking tea with young Hoff this afternoon, aren't you?"
+
+"Yes," said Jane, "that is, he asked me to. I am to meet him at the
+Biltmore at five."
+
+"When you're with him propose doing something together to-morrow
+afternoon. See what he says."
+
+"That's an excellent idea. I'll ask him to go to the matinee with me."
+
+"That will do splendidly. Has he been with that navy officer lately?"
+
+"Not since Sunday, to my knowledge. I wonder if old Mr. Hoff has left
+any more cipher messages at the bookshop?"
+
+"No," said Dean, "he hasn't. The place has been constantly watched, but
+he hasn't been near it since that first day."
+
+"I'm afraid," sighed Jane despondently, "I betrayed the fact that we
+were watching them to the nephew. He overheard me talking to Carter
+about the 'fifth book,' and of course he knew what it meant. I'm certain
+the old man is still reporting about our transports. Every day I can
+hear some one telephoning to him. He waits for the message, and then he
+goes out."
+
+"He certainly is expert in eluding shadowers," admitted Dean. "Every day
+he has been followed, but always he manages to give the operatives the
+slip. He must know he is being watched."
+
+"I'm anxious to know what the nephew will say to me to-day," said Jane.
+"I know he knows what I am doing. He looks at me in such an amusedly
+superior way every time he sees me."
+
+"Be careful about trying to pump him," cautioned Dean. "He strikes me as
+by far the more intelligent of the two. It would not surprise me in the
+least if he were not old Hoff's nephew at all, but really his superior,
+sent over especially by Wilhelmstrasse to take charge of the plotters.
+He doesn't in the least resemble old Hoff."
+
+"No indeed, he doesn't," admitted Jane. "He certainly is clever, too.
+We haven't learned a single thing that incriminates him, have we?"
+
+"Nothing definite, yet everything taken together looks damaging enough.
+Here is a young German of military age and appearance, who arrived from
+Sweden just before we went into the war. He has plenty of money and
+spends his time idling about New York, in frequent communication with at
+least one navy officer. He selects a home overlooking the river from
+which our soldiers are departing for France. You yourself saw him
+pursuing K-19--the other K-19--who a few hours afterward was found
+murdered."
+
+"Things don't look right," Jane agreed, yet a few hours later as she sat
+opposite the young man at tea, she found herself doubting. It seemed
+incredible, impossible, that Frederic Hoff could be a murderer. Her
+instinctive sense of justice forced her to admit that it was hard for
+her to believe him even a spy. He seemed so cultured, so clean, so
+straightforward, so nice. If she had not seen that unforgettable look of
+hate on his face that night as she watched him from the window she
+could not, she would not have believed evil of him.
+
+The tremor of nervous excitement in which she met him quickly passed,
+and she found herself once more chatting intimately with him and
+enjoying it. He talked well on practically all subjects, showing
+reserve only when she tried to draw him out about himself. Her previous
+experiences with the opposite sex had taught her that most men's
+favorite topic of conversation is themselves, but Mr. Hoff appeared to
+be the exception. Adroitly he baffled all her efforts to get him to
+discuss his family, his achievements, or his past, even when she sought
+to encourage intimacy by telling about her brother who was abroad in
+Pershing's army.
+
+"You must let me be your big brother while he is away," her escort had
+suggested gallantly.
+
+"All right, brother," she had challenged him. "I'll take you on at once.
+I have seats for a matinee to-morrow. I'd much rather go with a brother
+than with one of the girls."
+
+"I would be delighted," he answered unsuspectingly, "but unfortunately I
+have an engagement that takes me out of town."
+
+"We'll go next week, then--Wednesday."
+
+"A week is too long to wait. Let me take you to a matinee on Saturday."
+
+Jane hesitated. At times her conscience troubled her not a little. While
+satisfied that the importance of her trust wholly justified her actions,
+she disliked any deception of her family.
+
+"Wouldn't it be better," she parried, "if you came to call on me some
+evening first? You've only just met my mother, and I would like you to
+know Dad, too."
+
+"May I?" he cried with manifest pleasure. "How about to-morrow evening?"
+
+"That's Wednesday," she answered slowly. That was the day she and Dean
+were planning to put in a dictograph. She wondered at herself calmly
+carrying on this casual conversation with the man she was planning to
+betray. Coloring a little from the very shame of it, she continued, "How
+about making it Thursday evening?"
+
+"Delighted," cried Hoff, "and about Saturday's matinee--what haven't you
+seen?"
+
+Glad for the respite of at least twenty-four hours, Jane, as they
+talked, watched his face, his expression, his eyes. Regardless of the
+things she believed about him, he impressed her as honest and sincere.
+Certainly there was no mistaking the fact that his liking for her and
+his delight in her society were wholly genuine. Her heart warned her
+that it was his intention to press their new-formed acquaintance into
+close intimacy. Was he, she wondered, like herself, pretending
+friendship merely to unmask secrets for his government? No, she could
+not, she would not believe it. She felt sure that his admiration was
+unfeigned. Something told her that quickly his ardor and determination
+might lead her into embarrassing circumstances. He might even ask her to
+marry him. For a moment she was overcome with timidity and tempted to
+stop short on her new career, but there came to her the thought of the
+brave Americans in the trenches, of the soldiers at sea, of the brutal,
+lurking U-boats, and sternly she put aside all personal considerations.
+
+"You spoke of going out of town," she said when the subject of the
+matinee had been disposed of. "Don't you find train travel rather
+disagreeable these days?"
+
+"Fortunately I'm motoring."
+
+"That will be nice, if you don't have to travel too far."
+
+"It is quite a distance for one day, but I am used to it. I make the
+trip often."
+
+Feeling that at least she had learned something, Jane rose to go. She
+knew that both the Hoffs would be out of the way to-morrow. The
+inference from his last remark was that they were going to the same
+place they had gone on previous Wednesdays. That was something to report
+to Mr. Fleck.
+
+"My car is outside," she said as they rose. "Can't I take you home?"
+
+"Sorry," said her host, "but I am dining here to-night. Lieutenant
+Kramer is to join me."
+
+"Remember me to him," she said as he escorted her to the automobile,
+driven by Dean.
+
+A block away from the hotel she tapped on the glass, and as Dean brought
+the car to a stop she climbed into the seat beside him. Only a week ago
+she would have criticized any girl who rode beside the chauffeur. In
+fact she had spoken disapprovingly of a girl in her own set who made a
+habit of doing it, but now she never gave it a thought. Many things in
+her life seemed to have assumed new aspects and values since she had
+entered on a career of useful activity. In her was rapidly developing
+something of her father's ability and directness. As she wanted to talk
+confidentially with Dean, she went the easiest way about it, entirely
+regardless of appearances.
+
+"Apparently you carried it off well," he commented.
+
+"I hope so," she answered, coloring a little. "They're making their
+usual Wednesday motor trip."
+
+"He did not tell you their destination?"
+
+"No, but Lieutenant Kramer is dining with him to-night at the Biltmore."
+
+"Fine. Those things the Chief can take care of. That leaves the way
+clear for us to-morrow afternoon."
+
+"What excuse will I make for having you come up to the apartment?"
+
+"You want me to change some pictures. That will account for the wire if
+I'm caught."
+
+"I hope no one sees you."
+
+"Nobody'll see me but the elevator man, and he'll think nothing of it."
+
+Apparently, too, Dean was right, for the next afternoon he entered the
+Strong apartment carrying a suitcase in which was concealed his
+apparatus and the necessary wire.
+
+"Hurry," cried Jane, who was waiting for him. "The Hoffs' maid has just
+gone up on the roof."
+
+"We can safely give her at least a few minutes," said Dean setting to
+work to make a hole through the wall into the apartment adjoining. Just
+as he had finished making it and had pushed one end of the wire through,
+the telephone bell rang, and Jane in dismay sprang to answer it.
+
+"Disguise your voice," warned Dean. "If it is a caller say there is no
+one home."
+
+"It was Lieutenant Kramer calling," said Jane as she returned.
+
+"Did he recognize your voice?"
+
+"I don't think so."
+
+"What did he say?"
+
+"He said to tell Miss Strong that he had called."
+
+"Then he didn't suspect you."
+
+"Isn't there danger, though, that he may come up to the Hoff
+apartment?"
+
+Dean sprang to the window and looked out at the street below.
+
+"No, there he goes up the street. He evidently did not try to see if the
+Hoffs were at home. That's funny."
+
+"Why funny?"
+
+"It means of course that he, too, knows about those Wednesday trips the
+Hoffs make."
+
+Cautiously he opened the door into the public hall. There was no one
+about. Catlike in swiftness and silence he moved to the Hoff door and
+inserted his new-made key. It worked perfectly.
+
+"Now," he whispered to Jane, "to the roof--quick. I must not be taken by
+surprise. Give me at least ten minutes more--fifteen if you can."
+
+Quickly he passed inside, closing the door behind him all but a barely
+noticeable crack, as Jane rang for the elevator and bade the operator
+take her to the roof. As she emerged there and stood waiting for the
+elevator to descend again, an ornamental lattice screened her from the
+rest of the roof. Cautiously and curiously she peered between the
+slats, trying to see what the Hoff servant was doing at the moment. She
+decided that she would not reveal her presence until the woman made
+ready to go down-stairs.
+
+As from behind her screen she scanned the roof she espied old Lena over
+on the side next the river bending over a half-filled basket of clothes,
+apparently putting into the basket some of the freshly dried laundry
+from the lines extending all over the roof. As Jane watched her the old
+woman straightened herself up and cast a cautious glance about.
+Apparently satisfied that she was alone she whipped out something from a
+pocket in her apron and turned in the direction of the river.
+
+Jane gasped in amazement, a thrill of excitement sweeping over her at
+this new discovery. It was plain that the old servant was studying the
+transports in the river below through a pair of powerful field glasses.
+Curiously Jane observed her, wondering what she was trying to ascertain,
+wondering if through the glasses she was able to identify the
+battleships and other boats. Old Lena's next move was still more
+puzzling. Hastily dropping her glasses into the basket she began to
+hang again on the line some of the clothes. They were handkerchiefs,
+Jane noted interestedly, one large red one, and the rest white, some
+large, some small, a whole long row of nothing but handkerchiefs.
+
+All at once it came to Jane what it must mean. The arrangement of the
+handkerchiefs must be some sort of a code. She studied the way they were
+placed, committing the order to memory. "Red--two large--one small--one
+large--one small." Of course it was a code, a signal to some one aboard
+one of the ships.
+
+The line of handkerchiefs completed old Lena once more took up her
+glasses, first looking around as before to see if any one were on the
+roof. How Jane wished that she, too, could see the ships from where she
+stood. Was some traitor in the navy wigwagging to the old woman? She was
+tempted to spring forward and seize her and stop this dastardly
+signalling, but she remembered her duty. She was there to see that Dean
+was not surprised by old Lena's return. So long as the woman kept
+signalling he was safe.
+
+Once more the laundress dropped her glasses and began frantically
+rearranging the handkerchiefs. Again Jane noted their order--red--two
+small--one large--three small--two large. Again the laundress resorted
+to the glasses, and at last, apparently satisfied, began taking down the
+rest of the laundry and making ready to leave the roof. Trying to act as
+if she had just arrived, Jane stepped boldly forward.
+
+"I wonder," she said approaching the woman, "if you can tell me where I
+can find a good laundress."
+
+"_Nicht versteh_" said old Lena, eyeing her suspiciously and hostilely,
+and at the same time attempting to pass her with the basket of clothes.
+
+Deliberately blocking the way, Jane repeated her question, this time in
+German, feeling thankful that her language studies at school were not
+wholly forgotten and that they had included such practical phrases as
+those required to hire and discharge maids and complain about the
+quality of their work.
+
+"I know no one," the old woman answered her, this time in English.
+
+Jane breathed fast with excitement. The laundress' slip of the tongue,
+after denying that she understood, was evidence in itself of her
+deliberate duplicity. Realizing her mistake, the old woman now sullenly
+refused to answer any questions, merely shaking her head and trying to
+dodge past and escape.
+
+To prolong the questioning, Jane felt, would be only to arouse
+suspicion, and reluctantly she allowed old Lena to precede her to the
+elevator, anticipating her, however, in ringing the bell, pressing the
+button four times as Dean had directed. As they descended together she
+was almost in a panic. How long had she kept the laundress on the roof?
+She really had no idea. She had been so absorbed in her new discovery
+she had given no thought to the time. For all she knew she might have
+been there only five minutes. Had Dean had time to finish his work?
+
+Almost frenzied with anxiety, wondering if it were too soon, she moved
+forward in the car so as to obstruct old Lena's view through the door as
+it opened. One glance showed her the Hoff door now tightly closed, and
+she thought she heard the door of her own apartment just closing.
+Suddenly she remembered that she had gone up on the roof without a key.
+It would be a pretty pass if Dean were still in the Hoff apartment and
+she couldn't get into her own.
+
+All in a tremble she pressed the button of her own door, waiting,
+however, to see that the laundress was out of the hall. It was Dean who
+opened the door, and she all but fainted in his arms as she saw that he
+was back in safety.
+
+"It's done," he cried gleefully, as he caught her and drew her within,
+closing the door carefully behind her. "I just finished my work as you
+came down."
+
+Great drops of perspiration still stood on his forehead and he was
+breathing rapidly.
+
+"Why, what's the matter?" he cried, noticing for the first time Jane's
+perturbation. "Was it too much for you? What happened?"
+
+"Put this down quick, quick," gasped Jane, "Red--two large--one
+small--one large--one small--and then--red--two small--one large--three
+small--two large."
+
+Wonderingly he complied, jotting down what she told him in his notebook,
+and turning to ask her what it meant, discovered that she had fainted.
+
+
+
+CHAPTER VIII
+
+THE LISTENING EAR
+
+"I don't know what is the matter with Jane," sighed Mrs. Strong a few
+days after the employment of the new chauffeur.
+
+"She's not ill, is she?" responded her husband. "I never saw her looking
+more fit."
+
+"She looks all right," said her mother. "It is the peculiar way she is
+acting that bothers me. She spends hours and hours moping in her room,
+and then there are times when she takes notions of going out and is
+positively insistent that she must have the car."
+
+"Maybe she's in love," suggested Mr. Strong, resorting to the common
+masculine suspicion.
+
+"With whom?" retorted his wife indignantly. "I don't believe there is an
+eligible man under forty in all New York. None of the men are thinking
+about marriage these days. They all want to go to France, even the
+married ones. I believe you'd go yourself if you were a few
+years younger."
+
+"I certainly would," announced her husband enthusiastically.
+
+"Jane tells me she is writing a novel," Mrs. Strong continued, "and
+that's why she stays in her room so much. I hope she won't turn out to
+be literary."
+
+"Don't worry," advised Mr. Strong. "With all the men off to war you'll
+find young women doing all kinds of funny things to work off their
+energy. If a girl can't be husband-hunting, she's got to be doing
+something to keep busy. There are worse things than trying to write
+novels. Jane is all right. Let her alone."
+
+So, even though her mother's suspicions had been aroused, the girl in
+the next few days managed to spend many hours with her ears glued to the
+receiver of the dictograph without being discovered. In the Hoffs'
+apartment Dean had succeeded in locating it over the dining-room table,
+concealed in the chandelier, and in Jane's room the other end rested in
+the back of a dresser drawer that she always carefully locked
+when absent.
+
+The novelty of listening for bits of her neighbors' conversation
+quickly wore off. To sit almost motionless for hours listening,
+listening intently for every sound, hearing occasional words spoken
+either in too low tones or too far distant to make them understandable,
+to record bits of conversation that sounded harmless, yet might have
+some sinister meaning, became a most laborious task. Yet persistently
+Jane stuck at it. The greater knowledge she gained of the plottings of
+the German agents, the more important and vital she realized it was for
+every clue to be diligently followed in the hope that the trail might at
+last reach the master-spy, whose manifold activities were
+menacing America.
+
+In general she was disappointed with the results of her listening. To be
+sure they had furnished indisputable evidence of something they already
+had ascertained--that old Hoff, despite being a naturalized American,
+still was a devoted adherent of the ruler of Germany. Nightly as he and
+his nephew sat down to dinner she could hear his gruff, unpleasant voice
+ceremoniously proposing always the same toast:
+
+"Der Kaiser!"
+
+Even when the younger Hoff was dining out, as he sometimes did, Jane
+could hear the old man giving the toast, presumably with only the old
+servant for an auditor. That the woman, too, was a spy, as well as
+servant, Jane had known since the day on the roof, but so far neither
+she nor Dean had been able to make anything out of her handkerchief
+code, though both were sure the messages related to the sailings of
+transports.
+
+Only once had she heard anything that she deemed really important. One
+evening, as uncle and nephew dined, there had been an acrimonious
+dispute.
+
+"Have you it yet?" the uncle had asked in German.
+
+"Not yet," Frederic had answered.
+
+His seemingly simple reply for some reason appeared to have stirred the
+elder man's wrath. He broke into a volley of curses and epithets,
+reproaching his nephew for his delay. In the rapid medley of
+oaths and expostulations Jane could distinguish only occasional
+words--"afraid"--"haste"--"all-highest importance"--"American swine."
+The younger Hoff had appeared to exercise marvelous self-control.
+
+"There is yet time," he answered calmly.
+
+"Donnerwetter," the old man had exclaimed. "There is yet time, you
+say--and Emil the wonder-worker almost ready has. It must be done
+at once."
+
+The outburst over, old Hoff had subsided into inarticulate mutterings,
+evidently busy with his food, leaving Jane to wonder futilely who Emil
+might be, what he meant by the "wonder-worker," and what particular task
+had been assigned to the nephew that must be performed immediately. She
+had hastened to report this conversation in detail to Chief Fleck, but
+if he understood what it was about he had taken neither Jane nor Thomas
+Dean into his confidence.
+
+Other things, too, Jane had learned and reported, which she knew the
+chief appreciated even though he was sparing in his thanks and
+compliments. She had learned through her almost constant listening that
+Lieutenant Kramer was a regular visitor, coming to the Hoff apartment or
+seeing Frederic Hoff somewhere every other day. Unfortunately he was
+always conducted into one of the inner rooms, so that no more of the
+conversation than the ordinary greetings and farewells ever reached
+Jane's ears. The mere fact of his coming so regularly to the Hoffs
+convicted him of treachery, in Jane's mind. What proper business could
+an American naval officer have in the home of two German agents? The
+excuse that Frederic Hoff was a delightful and entertaining friend was
+entirely too flimsy and unsatisfactory.
+
+Nothing that she had overheard--and within her heart she felt glad that
+it was so--in any way as yet incriminated young Hoff. When she dared to
+think about it, she found herself almost believing, certainly at least
+wishing, that the nephew was not involved in his uncle's activities.
+Most of his time, in fact, was spent out of the apartment. He frequently
+went out early in the morning, not returning until the early hours of
+the next morning. The old man, on the contrary, always stayed at home
+until eleven o'clock. At that hour his telephone would ring. The
+telephone was located near the dining room, so Jane could easily hear
+his conversations. Invariably some brief message was given to him, a
+name, which he repeated aloud as if for verification.
+
+As Jane overheard them she had set them down:
+
+ Thursday--"Jones."
+ Friday--"Simpson."
+ Saturday--"Marks."
+ Sunday--"Heilwitz."
+ Monday--"Lilienthal."
+ Tuesday--"Wheeler."
+
+As she sat by the hour listening Jane kept pondering over these names.
+What could they mean? Were they, too, a code of some sort? Always, as
+soon as this word had come to him, old Hoff went out. Could they be, she
+wondered, passwords by which he gained access somewhere to government
+buildings or places where munitions were being made or shipped?
+
+Meanwhile her acquaintance with Frederic Hoff had been progressing
+rapidly. As she had suggested he had called on her and had been
+presented to her father, and on the next Saturday they had gone to a
+matinee together. She had been eager to see what her father thought of
+him, for Mr. Strong, she knew, was regarded as a shrewd judge of men.
+
+"What does that young Hoff do who was here last night?" her father had
+asked at the breakfast table.
+
+"He's in the importing business with his uncle, I think," she had
+answered.
+
+"Where'd you meet him?"
+
+"He lives in the apartment next door. Lieutenant Kramer introduced him."
+
+"He's German, isn't he?"
+
+"Oh, no," said Jane, almost unconsciously rallying to defend him, "he
+was born in this country."
+
+"Well, it's a German name."
+
+"Don't you like him?"
+
+"He talks well," her father said, "and seems to be well-bred."
+
+It was with reluctance, too, that Jane admitted to herself that the
+better acquainted she became with Frederic Hoff the more fascinating she
+found his society. She was always expecting that by some word or action
+he would reveal to her his true character. At the matinee she had waited
+anxiously to see what he would do when the orchestra played the
+national anthem. To her amazement he was on his feet almost among the
+first and remained standing in an attitude of the utmost respect until
+the last bar was completed. If he were only pretending the role of a
+good American, he certainly was a wonderful actor. As her admiration for
+him increased and her interest in him grew she found that almost her
+only antidote was to try to keep thinking of his face as she had seen it
+the night that K-19--the other K-19--had been so mysteriously murdered.
+She kept wondering if Chief Fleck had made any further discoveries about
+the murder and resolved to ask him about it at the first opportunity.
+She therefore was delighted when on Tuesday, as she made her regular
+report by telephone, he asked if she could come to his office that
+afternoon with Dean to discuss some matters of importance. They found
+Carter already with the chief when they arrived.
+
+"Thanks to your work, Miss Strong, and to Dean's dictograph," said the
+chief, "we have made considerable progress. We have learned a lot more
+about the cipher messages."
+
+"You have learned it through me," cried Jane in amazement.
+
+"Yes," said the chief, smiling, "from that list of names you reported."
+
+"What were they, a cipher, a code?" questioned the girl breathlessly.
+
+"No, nothing like that. They are merely the names of various innocent
+and unsuspecting booksellers in various parts of the city."
+
+"How did you discover that?"
+
+"In the simplest and easiest way possible. I listed all the names you
+reported and studied them carefully, trying to find their common
+denominator. They were not in the same neighborhood, so it was not
+locality. They were not all German, so it was not racial. I looked them
+up in the telephone directory, checking up the numbers of the telephones
+of the Jones, the Simpsons, but that gave no clue. Then, as I looked
+through the telephone lists, I discovered that there was a bookstore
+kept by a man of each name. Then I understood. It is a simple plan for
+throwing off shadowers."
+
+"You mean that Mr. Hoff goes to a different bookstore each day to leave
+a code message?"
+
+"That's it. The spy who gets the messages each morning calls him up by
+'phone, mentioning just the one word. From that Mr. Hoff knows just
+where to go, concealing the message in a book before agreed upon."
+
+"The fifth book," interrupted Dean.
+
+"Not always," explained Fleck. "It depends on whether there are five
+letters in the name telephoned. I have located and copied several more
+of the messages."
+
+"But who gets the messages he leaves? Who takes them away from the
+bookshops?" asked Jane, mindful of her own failure in that respect.
+
+"It's a girl, or rather two girls together, though possibly only one of
+them is in the plot. Very likely the other may not know what her
+companion is doing."
+
+"To whom does this girl take them?"
+
+"That is still a mystery," said the chief. "We have ascertained who the
+girl is, where she lives. Her actions have been watched and recorded for
+every hour in the twenty-four for the last three days, and yet we don't
+know what she does with these messages. Carter has a theory--tell us
+about it, Carter."
+
+"In accordance with instructions," began Carter, as if he was making
+out a report, "I had operatives K-24 and K-11 shadow the party
+suspected. On two different occasions they followed her to a bookstore
+and back home again. She was accompanied on one occasion by her younger
+sister. Each time she went directly home and stopped there, neither she
+nor her sister coming out again, and no person visiting the
+apartment, but--"
+
+"Here's the interesting part," interrupted Fleck.
+
+"On both occasions within a couple of blocks of the bookstore she passed
+a man with a dachshund. She did not speak to the man, but each time she
+stopped to pet the dog."
+
+"Was it the same man both times?" asked Dean.
+
+"Apparently not," replied Carter, "but it may have been the same dog.
+Dachshunds all look alike."
+
+"Go on," said the chief.
+
+"Now my theory is that that girl was instructed to walk north until she
+met the man with the dog. I'll bet anything that code message went
+under the dog's collar. The next time she gets a message I'm going to
+get that dog."
+
+"It seems preposterous," scoffed Dean.
+
+"Rather it shows," said Fleck, "that these spies all suspect they are
+being watched, and that they resort to the most extraordinary methods of
+communication to throw off shadowers. They have used dachshunds before.
+There's a New England munition plant to which they used to send a
+messenger each week to learn how their plans for strikes and destruction
+were progressing. They put a different man on the job each time to avoid
+stirring up suspicion. At the station there would always be two children
+playing with a dachshund. The spy would simply follow them as if
+casually, and they would lead him to a rendezvous with the local
+plotters. Now, Miss Strong," he said, turning to Jane, "I brought you
+down here for two reasons. First, to give you an inkling of how
+important your task is, and second, to ask you to undertake still
+another task for us. Are you still willing to help?"
+
+"More than ever," said the girl firmly.
+
+"The one disappointment is that we are getting no evidence whatever to
+involve or incriminate young Hoff. To-morrow, while he and his uncle are
+away on their usual auto trip, I am going to have the apartment
+thoroughly searched."
+
+Jane's face blanched. She recalled what a strain it had been on her
+nerves the day she watched on the roof while Dean installed the
+dictograph. She felt hardly equal to the task of ransacking desks
+and drawers.
+
+"There will be no one at home but the old servant. She can be easily
+disposed of. It is imperative that the search be made at once. There is
+evidence that what they are planning--evidently some big coup--is
+nearing the time for its execution. We must find it out in order to
+thwart them. I have got to know what old Hoff meant by the
+'wonder-worker!' He said that it was nearly ready. I suspect that it is
+some new engine of destruction. We must prevent any disaster to
+transports or munition factories, if that's what they have in mind."
+
+"You think it's a bomb plot?" asked Jane.
+
+"I don't know what it is. These empire-mad fools stop at nothing.
+Nothing is sacred to them, women, children, property. With fanatical
+energy and ability they commit murders, resort to arson, use poisons,
+foment strikes, wreck buildings, blow up ships, do anything, attempt
+anything to serve the Kaiser. Karl Boy-ed spent three millions here in
+America in two months, and Von Papen a million more. What for? Ten
+thousand dollars to one man to start a bomb factory, twenty-five
+thousand dollars to another to blow up a tunnel. Millions on millions
+for German propaganda was raised right here, and it is far from all
+spent yet. We've got to find out what the wonder-worker is and destroy
+it before it destroys--God knows what."
+
+"Very well," said Jane with quiet determination, "I'll search their
+apartment."
+
+"No, not that," said the chief, "I'll send some fake inspectors to test
+the electric wiring, and they'll do the searching. I do not know for
+sure that the Hoffs suspect you of watching them, but I'm taking no
+chances. It will be just as well for you and Dean to be out of the way
+to-morrow all day, so that you will have an alibi. Germany's secret
+agents are suspicious of everybody. They do not even trust their own
+people. What I want you and Dean to do is to try to follow the Hoffs and
+see where they go. I don't want to use the same persons twice to trail
+them as they may get suspicious."
+
+"I can easily do that," said Jane, feeling relieved. "I'll tell Mother I
+want our car for all day."
+
+"No, don't use your own car. They might recognize it. I'll provide
+another one. They gave two of my men the slip last week somewhere the
+other side of Tarrytown. Let's hope they are not so successful
+this time."
+
+"But won't they recognize me?"
+
+"Not if you disguise yourself with goggles and a dust coat. Dean can
+make up, too. He had practice enough at college, eh, Dean?"
+
+Jane turned to look interestedly at Dean, who had the grace to color up.
+She was right then. He was a college man, working in the secret service
+not for the sake of the job but for the sake of his country.
+
+"Of course I can disguise myself too," she said enthusiastically, a new
+zest in her work asserting itself, now that she knew her principal
+co-operator was probably in the same social stratum as herself.
+
+"You can rely on us, Chief," said Dean, as they left the office
+together. "We'll run them down."
+
+As they emerged into Broadway and turned north to reach the subway at
+Fulton Street, Dean, with a warning "sst," suddenly caught Jane's arm
+and drew her to a shop window, where he appeared to be pointing out some
+goods displayed there. As he did so he whispered:
+
+"Don't say a word and don't turn around, but watch the people passing,
+in this mirror here--quick, now, look."
+
+Jane, as she was bidden, glanced, at first curiously and then in
+recognition and amazement, at a tall figure reflected in the mirror, as
+he passed close behind her. It was a man in uniform. Regardless of
+Dean's warning she turned abruptly to stare uncertainly at the military
+back now a few paces away.
+
+"Did you recognize him?" cried Dean.
+
+"It--it looked like Frederic Hoff," faltered the girl.
+
+"It was Frederic Hoff," corrected her companion, "Frederic Hoff in the
+uniform of a British officer, a British cavalry captain!"
+
+
+
+CHAPTER IX
+
+THE PURSUIT
+
+Masked by an enormous pair of motor goggles and further shielded from
+recognition by a cap drawn down almost over his nose, Thomas Dean in a
+basket-rigged motorcycle impatiently sat awaiting the arrival of Jane
+Strong at a corner they had agreed upon the evening before. He had been
+particularly insistent that Jane should be on hand at a quarter before
+eight. He had learned by judicious inquiries that always on
+Wednesdays--at least on the Wednesdays previous--the Hoffs had started
+off on their mysterious trips at eight sharp. His intention was to get
+away ahead of them and pick them up somewhere outside the city limits.
+
+Jane had promised that she would be on hand promptly. Once more he
+looked impatiently at his watch. It lacked just half a minute of the
+quarter, but there was no sign of his fellow operative. The only person
+visible in the block was a boy strolling carelessly in his direction.
+With a muttered exclamation of annoyance Dean restored his watch to his
+pocket, debating with himself how long he ought to wait and whether or
+not he had better wait if she did not appear soon. Very possibly, he
+realized, something entirely unforeseen might have detained her or have
+prevented her coming. Perhaps her family had doubted her story that she
+was going off on an all-day motor trip with a friend? Maybe their
+suspicions had been aroused by his having reported sick? He had almost
+decided to go on alone when he observed that the boy he had seen
+approaching was standing beside the motorcycle.
+
+"Good morning, Thomas," said the boy, a little doubtfully, as if not
+quite sure that it was he.
+
+Dean gasped in astonishment. The boy's voice was the voice of Jane.
+Laughing merrily at his amazement and discomfiture, she climbed into the
+seat beside him, asking:
+
+"How do you like my disguise?"
+
+"It's great," he cried. "You fooled me completely, and I was expecting
+you."
+
+"When Chief Fleck said I ought to disguise myself for fear that the
+Hoffs already suspected me, I happened to remember these clothes. I had
+them once for a play we gave in school."
+
+"But you don't even walk like a girl."
+
+Jane laughed again.
+
+"I practised that walk for days and days. When I first put on this suit
+my brother hooted at the way I walked. He said no girl ever could learn
+to walk like a boy. I made up my mind I'd show him."
+
+"But your hair," protested Dean, almost anxiously. Even if he was just
+now assuming the humble role of chauffeur he still was an ardent admirer
+of such hair as Jane's, long, black and luxurious.
+
+"Tucked up under my cap," laughed the girl, "and for fear it might
+tumble down, I brought this along. It's what the sailor boys call a
+'beanie,' isn't it?"
+
+As she spoke she adjusted over her head a visorlike woolen cap that left
+only her face showing.
+
+"But your mother--didn't she wonder about your wearing those clothes?"
+
+"She was in bed when I left. All she caught was just a glimpse of me in
+Dad's dust coat, and that came to my ankles. I wore it until I was a
+block away from the house. Will I do?"
+
+"You can't change your eyes," said Dean boldly, that is boldly for a
+chauffeur, but he knew that Jane knew he wasn't a chauffeur except by
+choice, so that made it all right.
+
+"I couldn't well leave them behind. I understood that I was to have a
+lot of use for my eyes to-day."
+
+"Yes, indeed, you very likely will."
+
+"Do you know I hardly recognized you at first and was almost afraid to
+speak? I had expected to find you in a car. What was the idea of the
+motorcycle?"
+
+"It was Chief Fleck's suggestion. The Hoffs will be motoring. People in
+a car seldom pay any attention to motorcyclists. If we were to follow
+them in a motor they'd surely notice it. Last week they managed to dodge
+the people the Chief assigned to trail them. Maybe as two dusty
+motorcyclists we'll have better luck."
+
+"I hope so. Where do you intend waiting to pick them up?"
+
+"Getty Square in Yonkers is the best place. Everybody going north goes
+that way. I can be tinkering with the machine while you keep watch for
+them. They will not be apt to suspect a pair of Yonkers motorcyclists.
+There's no danger of missing them."
+
+"Did you tell the Chief about seeing Mr. Hoff in that uniform?"
+
+"Of course. He did not seem even surprised. Some one had reported to him
+already that there was a German going about in British uniform."
+
+"What had he heard? What was the man doing?" questioned Jane anxiously.
+Even though she believed Frederic Hoff an alien enemy, even though she
+was all but sure that he was a murderer, she kept finding herself always
+hoping for something in his favor. He seemed far too nice and
+entertaining to be engaged in any nefarious, underhanded, despicable
+machinations. Yet she had seen him masquerading as a British officer.
+She could not doubt the evidence of her own eyes.
+
+"What happened was this," continued Dean. "A woman--one of the society
+lot--was driving down Park Avenue day before yesterday morning in her
+motor. It had been raining, and the streets were muddy. At one of the
+crossings a British officer stopped to let the car pass. One of the
+wheels hit a rut, and his uniform was all splashed with mud. He burst
+into a string of curses--_German_ curses."
+
+"He cursed in German?" cried Jane.
+
+"Sure," said Dean. "On the impulse of the moment he forgot his role and
+revealed his true self--an arrogant Prussian officer."
+
+"What did the woman do?"
+
+"Reported him to the first policeman she met, but by that time he had
+vanished, of course."
+
+"What did Chief Fleck think about it?"
+
+"He didn't seem to take the story seriously."
+
+"Do you suppose it could have been Mr. Hoff?"
+
+"It must have been he, or one of his gang, at any rate. I don't see why
+the Chief does not order his arrest at once. He is far too dangerous to
+be at large."
+
+"There's no real evidence against him yet," protested Jane, "not against
+the young man, at least."
+
+"Didn't we both see him in British uniform?"
+
+"Yes," admitted the girl.
+
+"Well, that's proof, isn't it? A man with a German name in British
+uniform in wartime can't be up to any good."
+
+"Still we have no actual evidence against him. We don't know what he was
+doing."
+
+"I'd arrest him then for murder and get the evidence that he is a spy
+afterward. It would be easy to fasten the murder of K-19 on him. There's
+no doubt that he did that."
+
+"Has a witness been found?" asked Jane with a quick catch of the breath.
+Somehow she never had been able to persuade herself that the man next
+door, whatever else he might be, had really committed that
+brutal murder.
+
+"No, there's no actual witness, but it could be proved by circumstantial
+evidence. K-19, the man whose work you took up, had instructions to
+shadow young Hoff to his home. At two in the morning he relieved another
+operative. At three you yourself saw him shadowing Hoff."
+
+"I saw two men on the sidewalk," corrected Jane. "One of them was
+Frederic Hoff. I did not see the other distinctly enough to identify
+him. I saw no murder. I merely saw the two of them run around
+the corner."
+
+"Look here," said Dean sharply, not wholly succeeding in suppressing a
+note of jealousy in his tones, "I believe you are trying to shield
+Frederic Hoff. What is he to you? Has he won you over to his side?"
+
+"You've no right to say such things to me," cried Jane, nevertheless
+coloring furiously. "I've seen the man only three or four times. I am
+working just as hard as you are to prove that he is a German spy, if he
+is one. I am only trying to be fair. I know nothing that convicts him of
+murder. Any testimony I could give would not prove a single thing."
+
+"Certainly not, if that's the way you feel about it," snapped Dean.
+
+After that they rode along together in silence, each busy with thoughts
+of their own. Dean was cursing himself for having let his enthusiasm to
+be of service to his government lead him into such circumstances. He
+felt that his chauffeur's position handicapped him in his relations with
+Jane, to whom he had been strongly attracted from the beginning. The son
+of a distinguished American diplomat, he had been educated for the most
+part in Europe. Friends of his father, when he had offered his services
+to the government, had convinced him that his knowledge of German and
+French would make him most useful in the secret service. Reluctantly he
+had consented to take up the work, and as he had gone further and
+further into it and had realized the vast machinery for surreptitious
+observation and dangerous activity that the German agents had secretly
+planted in the United States, he had become fascinated with his
+occupation--that is, until he met Jane Strong.
+
+His association with her under present circumstances was fast becoming
+unbearable. Even though he was aware that she knew he was no ordinary
+chauffeur, he loathed the necessity of having to wear his mask in the
+presence of her family. He wanted to be free to come to see her, to send
+her flowers and to go about with her. For him to take any advantage of
+their present intimate relations to court her seemed to him little short
+of a betrayal of his government, yet at times it was all he could do to
+keep from telling her that he adored her. Love's sharp instincts, too,
+had made him realize that Jane was already beginning to be attracted by
+the handsome young German whom they were seeking to entrap, and the
+knowledge of this fact filled him with helpless rage and jealousy.
+
+Jane, too, angered and insulted at first by Dean's outburst, had been
+endeavoring to analyze her own conduct. Candor reluctantly compelled her
+to admit that each time she met Frederic Hoff she had found herself
+coming more and more under his spell. He had a wonderful personality,
+talked entertainingly and ever exhibited an innate gallantry toward
+women in general, and herself in particular, which Jane had found
+delightfully interesting. Though she had undertaken wholeheartedly to
+try to get evidence against him, she was forced to admit to herself now
+that she was secretly delighted that there had been nothing damaging
+found as yet, so far as he was concerned, beyond the one fact that he
+had been in British uniform.
+
+In vain she marshalled the circumstances about him, trying to make
+herself hate him. He was a German, she told herself. He was an enemy of
+her country. He lived with a man who had been proved to be a spy. He
+surreptitiously associated with American naval officers. The dictograph
+told her that nightly his uncle and he in the seclusion of their home
+toasted America's arch enemy, the German Kaiser. More than likely, too,
+her reason told her, he was a murderer. She ought to hate, to loathe, to
+despise him, and yet she didn't. She liked him. Whenever he approached
+she could feel her heart beating faster. She looked forward after each
+meeting with him to the time when she would see him again. What, she
+wondered, could be the matter with her? Assuredly she was a good
+patriotic American girl. Why couldn't she hate Frederic Hoff as she knew
+he ought to be hated?
+
+She was still puzzling over her unruly heart when they reached Getty
+Square, and Dean brought the motorcycle to a stop in one of the side
+streets overlooking Broadway. Dismounting, he looked at his watch and
+made a pretense of tinkering with the engine, while Jane kept a sharp
+lookout on the main thoroughfare, by which they expected the Hoffs to
+approach. Ten minutes, twenty minutes, more than half an hour they
+waited, anxiously scanning each car as it passed.
+
+"I can't understand it," said Dean. "They should have been here at least
+twenty minutes ago. I am going to 'phone Carter. He will know what time
+they started."
+
+He had hardly entered an adjacent shop before Jane, still keeping watch,
+saw the Hoffs' car flash by, going rapidly north. Quickly she sprang out
+and ran into the store. Dean saw her coming and left the telephone
+booth, his finger on his lips in a warning gesture.
+
+"Don't bother to 'phone," cried the girl, misunderstanding his
+meaning--and thinking only that he was trying to prevent her naming the
+Hoffs. "Come, let's get started."
+
+Without speaking he hurried from the store and got the motorcycle under
+way.
+
+"Have they passed?" he whispered then.
+
+"Just a moment ago."
+
+Silently he gathered up speed, racing in the direction the Hoffs' car
+had gone, not addressing her again until perhaps two miles from Getty
+Square they caught up with it close enough to identify the occupants,
+whereupon he slowed down and followed at a more discreet interval.
+
+"Be careful about speaking to me when there's any one about," he warned
+Jane, almost crossly. "Those clothes make you look like a boy, and your
+walk is all right, but your voice gives you away. Did you see that clerk
+in the store look at you when you spoke to me? I tried to warn you to
+say nothing."
+
+"I'll be careful hereafter," said Jane humbly, still depressed by her
+recent estimate of herself. "I forgot about my voice."
+
+Mile after mile they kept up the pursuit without further exchange of
+conversation. As they passed through various towns along the road Dean
+purposely lagged behind for fear of attracting attention, but always on
+the outskirts he raced until he caught up close enough again to the car
+to identify it, then let his motorcycle lag back again. Thus far the
+Hoffs had given no indication of any intention to leave the main road.
+
+As the cyclists, far behind, came down a long winding hill on which they
+had managed to catch occasional glimpses of their quarry, Dean, with a
+muttered exclamation, put on a sudden burst of speed. At a rise in the
+road he had seen the Hoffs' car swing sharply to the left. Furiously he
+negotiated the rest of the hill, arriving at the base just in time to
+see them boarding a little ferry the other side of the railroad tracks.
+While he and Jane were still five hundred yards away the ferryboat, with
+a warning toot, slipped slowly out into the Hudson.
+
+In blank despair they turned to face each other. The situation seemed
+hopeless. They dared not shout or try to detain the boat. That surely
+would betray to the Hoffs that they were being followed. Despondently
+Dean clambered off the motorcycle and crossed to read a placard on the
+ferryhouse.
+
+"There's not another boat for half an hour," he said when he returned.
+"They have gained that much on us."
+
+"Perhaps we can pick up their trail on the other side of the river,"
+suggested Jane. "There are not nearly so many cars passing as there
+would be in the city."
+
+"We can only try," said Dean gloomily.
+
+"At least we know where to pick up their trail the next time."
+
+"Damn them," cried Dean, "I believe they suspect that they may be
+followed and time their arrival here so as to be the last aboard the
+ferryboat. That shuts off pursuit effectually. They make this trip every
+week. I wouldn't be surprised if they have not fixed it with the ferry
+people to pull out as soon as they arrive. A two-dollar bill might do
+the trick. I'd give five thousand right now if we were on the other side
+of the river. It's the first time--the only time I've ever failed
+the Chief."
+
+"Never mind," said Jane consolingly, "why can't we be waiting for them
+at the other side next week when they come up here? They're not apt to
+suspect motorcyclists they meet up here with having followed them."
+
+"Perhaps next week will be too late."
+
+"I wonder where they are headed for," said the girl, looking across at
+the rapidly receding boat. "Why, look! What are those buildings
+over there?"
+
+"That's West Point," Dean exclaimed, noting for the first time where
+they were.
+
+"West Point!" she echoed in amazement.
+
+What mission could the Hoffs have that would take them to the United
+States Government military school was the question that perplexed them
+both. Could it be that the web of treachery and destruction the Kaiser's
+busy agents were weaving had its deadly strands fastened even here--at
+West Point?
+
+
+
+CHAPTER X
+
+CARTER'S DISCOVERY
+
+"It's the young man I'm after," said Chief Fleck. "We have the goods on
+old Hoff, but we have nothing incriminating against Frederic yet. The
+very fact that he holds aloof from his uncle's activities makes me think
+he is engaged in more important work. He's just the type the Germans
+would select as a director."
+
+"That's right," said Carter despondently. "There's nothing except the
+fact that Dean and the girl think they saw him in British uniform. Why
+didn't they follow and make sure?"
+
+"They tried to," said the chief, "but he gave them the slip. I'm
+inclined to believe they were mistaken. More than likely it was a chance
+resemblance. Lots of Britishers of the Anglo-Saxon strain look much like
+Germans, and a uniform makes a big difference in a man's appearance. I'm
+afraid there's nothing in that."
+
+"But both saw the man--Dean and Miss Strong," protested Carter.
+
+"The trouble is," observed Fleck, "that Dean is getting infatuated with
+the girl. A young man in love is not a keen observer. Anything she
+thinks she has seen he'll be ready to swear to. I hope the girl keeps
+her head. Lovers don't make good detectives."
+
+"I have watched them together," said Carter. "I'll admit he's struck on
+her, but I don't think she cares a rap for him. She's too keenly
+interested in Frederic Hoff."
+
+"What do you mean by that?" asked the chief sharply.
+
+"You can depend on her all right. She's patriotic through and through.
+She's the kind that would do her duty, no matter what it cost her. All I
+meant is that Hoff's the type that interests women. He's got a way about
+him. The fact that he's a spy, in peril most of the time, gives him a
+sort of halo. I never knew a daring young criminal yet that didn't have
+some woman, and often several of them, ready to go the limit for him.
+All the same, I'm sure we can trust Miss Strong."
+
+"We've got to," growled Fleck, "for the present at any rate. Is
+everything fixed for the search this afternoon? What have you done to
+get the superintendent out of the way? He's not to be trusted. His name
+is Hauser."
+
+"I've got him fixed. Jimmy Golden, my nephew, who has helped us in a
+couple of cases, is a lawyer. He has telephoned to Hauser to come to his
+office this afternoon."
+
+"Suppose he doesn't go?"
+
+"He'll go all right. Jimmy 'phoned him that it was about a legacy.
+That's sure bait. Jimmy will make Hauser wait an hour, then keep him
+talking half an hour longer. That will give us plenty of time."
+
+"Then there's the woman--the servant, Lena Kraus."
+
+"She goes to the roof every Wednesday while the Hoffs are away to
+signal. Other days they apparently do the signalling themselves in some
+way we haven't caught on to yet. She always goes up about three
+o'clock and--"
+
+"Suppose she comes down unexpectedly and catches you? We can't have that
+happen. That would put them on their guard."
+
+"She won't surprise us. I've got a trick up my sleeve for preventing
+that."
+
+"Go to it, then," said the chief, and Carter went on his way rejoicing.
+
+Ever since he had been informed that the search of the Hoffs' apartment
+was to be intrusted to him Carter had been in a state of exuberant
+delight. He fairly revelled in jobs that required a disguise and he
+welcomed the opportunity it gave him and his assistants to don the
+uniform of employees of the electric light company. He even made a point
+of arriving that afternoon at the apartment house in the company's
+repair wagon, the vehicle having been procured through Fleck's
+assistance.
+
+"There's a dangerous short circuit somewhere in the house," he announced
+to the superintendent's wife.
+
+"My husband isn't here," she answered unsuspectingly. "Do you know where
+the switch-boards are?"
+
+"We can find them," said Carter. "We'll start at the top floor and work
+down."
+
+Always thorough in his methods of camouflage he actually did go through
+several apartments, making a pretense of inspecting switch-boards and
+wiring, all the while keeping watch for the time when old Lena went to
+the roof. The moment she had entered the elevator to ascend with her
+basket of linen, Carter and his aides were at the Hoff door. Equipped
+with the key Dean had manufactured they had no difficulty in entering.
+
+"Bob," said Carter to one of his men, "we haven't much time, and there's
+a lot to be done. You take the servant's room and the kitchen, and you,
+Williams, take the old man's quarters. I'll take care of the young man's
+bedroom, and we'll tackle the living room and dining room later."
+
+Thoroughly experienced in this sort of work all three of them set at
+once to their tasks. Carter, standing for a moment in the doorway,
+surveyed Frederic Hoff's quarters, taking in all the details of the
+furnishings. Both the sitting room and the bedroom adjoining were
+equipped in military simplicity, with hardly an extra article of
+furniture or adornment, chairs, tables, everything of the plainest sort.
+Moving first into the bedroom, Carter quickly investigated pillows and
+mattress, but in neither place did he find what he sought, evidence of a
+secret hiding place. He rummaged for a while through the drawers of two
+tables, carefully restoring the contents, but discovering nothing that
+aroused his suspicions. The books lying about on the tables and on
+shelves he examined one by one, noting their titles, examining their
+bindings for hidden pockets, holding them up by their backs and shaking
+the leaves. There was nothing there. Lifting the rugs and moving the
+furniture about he made a careful survey of the flooring, seeking to
+find some panel that might conceal a hiding place. Once or twice in
+corners he went so far as to make soundings but apparently the whole
+floor was intact. His search in the bath room was equally profitless,
+and at last he turned to the clothes press. As he opened the door an
+exclamation of amazement burst from his lips.
+
+There, concealed behind some other suits, was the complete outfit of a
+British cavalry captain.
+
+"That's one on the Chief," he said to himself. "It must have been Hoff
+that Dean and Miss Strong saw. I wonder where he got it?"
+
+With a grim smile of satisfaction he devoted himself to going carefully
+through all the pockets and over all the seams of the clothing in the
+closet. He even felt into the toe of the shoes and examined the soles.
+There was nothing to be found anywhere, but he felt satisfied. The
+uniform in itself was to his mind damning proof of the young man's
+occupation.
+
+No explanation that could be given by a young man of German name, even
+though he was American-born, or had an American birth certificate, could
+possibly account for his having a British uniform. It was prima facie
+evidence that Frederic Hoff was a spy. What puzzled Carter most was how
+Hoff managed to smuggle the uniform in and out of the apartment without
+being observed. For more than two weeks now every parcel that had
+arrived at the house of the Hoffs had been searched before it was
+delivered. The house had been constantly under the strictest
+surveillance. It was out of the question for him to have worn the
+uniform in or out as it could not be easily concealed under
+other clothing.
+
+"There's somebody else in this place in league with the Hoffs," he
+muttered to himself. "I wonder who it can be."
+
+He looked at his watch. The old servant had been out now nearly half an
+hour. She was likely to return at any moment. He must work quickly.
+Swiftly he went through the dresser drawers but without satisfactory
+result. There was no time for him to do more. He hastened into the
+living room and summoned his aides.
+
+"Find anything, Bob?" he asked.
+
+"Not a thing."
+
+"Beat it up to the roof," he directed. "Have you those field glasses
+with you?"
+
+"Sure," replied the operative, "and the handkerchiefs, too."
+
+"All right. Get up there before she starts down. Begin putting up
+handkerchiefs and appear to be watching the river. That will mix her up
+so she will not know what to do. She will not dare to leave the roof
+while you are there. When we're through I'll send the elevator man up
+for you with the message that we have found the short circuit."
+
+He turned to the other operative.
+
+"Find anything, Williams?"
+
+"Only this."
+
+Carter's face brightened as his assistant held out to him two copies of
+an afternoon newspaper. In each of them a square was missing where
+something had been cut out.
+
+"I found them in the waste-paper basket by the old man's desk," the man
+explained, "and there was some ashes there--ashes of paper--as if he had
+burned up something. Maybe it was what he cut out of those papers. I
+could not tell."
+
+"We've got to get copies of those papers at once and see what it was.
+Come on, I'm going to take them to the Chief. We can get the papers on
+the way down."
+
+Calling the other operative from the roof, before he even had had time
+to attract the attention of Lena Kraus by his activities, they hastened
+back to the office, where Fleck and Carter together scanned the two
+papers from which the clippings had been taken.
+
+"Why," said Carter disappointedly, "it is just a couple of
+advertisements he cut out--advertisements for a tooth paste. There's
+nothing in that."
+
+"Don't be too sure," warned Fleck. "If a man cuts out one tooth-paste
+advertisement, the natural presumption would be that he wished to
+remind himself to buy some. When he cuts out two, he must have some
+special interest in that particular tooth paste. We'll have to find out
+what his interest is."
+
+"Maybe he owns it," suggested Carter.
+
+"Perhaps," said Fleck, as he began studying the advertisements, "but it
+would not surprise me if these advertisements contained some sort of
+code messages."
+
+"Messages in advertisements," exclaimed Carter incredulously.
+
+"Why not? The Germans have hundreds of spies at work here in this city
+and all over the country. What would be an easier method of
+communicating orders to them than by code messages concealed in
+advertising. They have done it before. When the German armies got into
+France they found their way placarded in advance with much useful
+information in harmless looking posters advertising a certain brand of
+chocolate. I'd be willing to bet that every one of these advertisements
+carries a code message. I've noticed that these advertisements, all
+peculiarly worded, have been running for some time. I never thought of
+hooking them up with German propaganda, but, see, it is a German firm
+that inserts them."
+
+Carefully he cut out the two advertisements and laid them side by side
+on his desk. Turning to Carter he said:
+
+"Go at once to see Mr. Sprague, the publisher of this paper. Get him to
+give you a copy of each paper that has contained an advertisement of
+this sort in the last six months. Find out what agency places the
+advertising. Tell him I want to know. He'll understand. We have worked
+together before."
+
+Alone in his office, Fleck bent with wrinkled brow over the first of the
+two advertisements, which read:
+
+ REMEMBER
+
+ Please, that our new paste, DENTO,
+ will stop decay of your teeth. Sound
+ teeth are passports to good health and
+ comfort. Now, no business man can
+ risk ill health. It is closely allied with
+ failure. The teeth if not watched are
+ quickly gone.
+
+ USE DENTO
+
+ A genuine, safe, pleasing paste for the
+ teeth, prepared and sold only by the
+ Auer Dental Company, New York.
+
+He tried all the methods of solving cipher letters that he thought of.
+He drew diagonals this way and that across the advertisement. He tried
+reading it backward. He tried reading every other word, every third
+word, both backward and forward. Nothing that he did revealed any
+combination of words that made sense.
+
+"Passports," he muttered to himself, "that's it. If there is a message
+there it must be something about passports."
+
+In despair he turned to the other advertisement. It read:
+
+ DON'T
+
+ Forget it is imperative for one and all to
+ use cleansing agents on teeth that leave
+ no bad results.
+
+ "Ship more of that wonder-working
+ paste immediately. Workers, employers,
+ wives, all ready to commend it. Friday's
+ supply gone," writes a druggist to whom
+ a big shipment was made last week.
+
+ USE DENTO
+
+ A genuine, safe, pleasing paste for the
+ teeth, prepared and sold only by the
+ Auer Dental Company, New York.
+
+Fleck's eyes gleamed with satisfaction as he read this advertisement
+and caught the phrase "wonder-working." He felt sure now that he was on
+the right track. He recalled that Jane Strong over the dictograph had
+heard old Hoff speak of something that he called the "wonder-worker." As
+soon as Carter returned with the other advertisements that had been
+appearing he felt positive that he would be able to unravel the cipher.
+Two words he was sure of--"passports" and "wonder-working." One
+footprint does not lead anywhere, but two do, and given three
+footprints, a pathway is indicated.
+
+His telephone rang sharply. He turned to answer it, suspecting it must
+be Carter with some message about the papers he had sent for.
+
+"Hello," he called.
+
+"Hello," came a faint voice, as if the speaker were using long distance,
+and had a bad connection, "is this Fleck?"
+
+"Yes, Fleck," he answered, "who is this?"
+
+"Dean speaking," came the voice faintly.
+
+"Dean," cried Fleck, excitedly, "yes, yes. What is it, Dean?"
+
+He had not expected to hear any results from the expedition that Dean
+and Jane Strong had undertaken until late in the afternoon after the
+Hoffs returned. The fact that Dean was calling him up now would seem to
+indicate that something of importance had happened.
+
+"I'm telephoning from a doctor's house near Nyack," said Dean.
+
+"What's that? Speak louder."
+
+"I'm here in Doctor Spencer's office near Nyack with a broken arm," Dean
+continued. "We've had an accident. Somebody's auto smashed into us,
+I guess."
+
+"Miss Strong? Where is she? Is she hurt?" asked the chief anxiously.
+
+"I don't know. She has vanished."
+
+Jane Strong vanished! The chief's figure became suddenly tensed. That it
+was more than a mere automobile accident he felt certain now. Shadowing
+the Hoffs was an occupation that seemed unusually perilous. There
+flashed into his mind the fate of K-19--murdered almost at the Hoffs'
+door. And now two more of his operatives, one disabled and the other
+mysteriously missing.
+
+"Quick," he said over the 'phone. "Tell me briefly just what happened.
+Speak as loudly as you can."
+
+"We got half an hour behind at the West Point Ferry," Dean's voice went
+on, still weak and low as if he were speaking with difficulty. "We had
+some trouble getting started on the trail again but finally succeeded.
+We were dashing along about ten or twelve miles south of West Point when
+an automobile coming out of a cross road crashed right into us. It must
+have knocked me unconscious. I didn't remember anything more till I
+found myself here. I came to as the doctor was setting my arm. I 'phoned
+as soon as they would let me."
+
+"Who brought you there?"
+
+"I don't know. All they know here was that some couple in an automobile
+left me here. They said they passed just after an auto hit my
+motorcycle. They said the auto didn't stop."
+
+"And Miss Strong--did they say anything about her?"
+
+"Not a word. The people here were under the impression I was riding
+alone."
+
+"All right," said the chief. "I'll get some one up there at once to
+look after you and pick up any clues."
+
+As he hung up the 'phone, his forehead wrinkled into little lines of
+absorbed concentration. He sat at his desk for fully five minutes almost
+motionless, trying to figure it out. What did the accident to Dean
+signify? How was the sudden disappearance of Jane Strong to be accounted
+for? Had she fled from the scene after Dean was disabled, fearing that
+her name might be coupled with his in an account of the accident? It did
+not seem like the sort of thing she would do. The impression she had
+made on him was that of a girl of high resolve who would be apt to carry
+through anything she undertook, cost what it may. Yet what could have
+happened to her? If she, too, had been injured, why was she not with
+Dean? If she was not injured, why had she not communicated with the
+office? Who were the couple that had brought Dean to the doctor's
+office? Why had not the doctor taken their names and addresses?
+
+What part had the Hoffs played in the accident? Had they purposely run
+down the motorcycle? If they had found out they were being shadowed
+they would not have hesitated, he felt sure, to resort to such murderous
+tactics. Had they not already one dastardly murder to their record? He
+must find out when the Hoffs arrived home. They would not be due for an
+hour or two, but he would caution the operatives watching the house to
+keep more vigilant watch. Reaching for his 'phone he called up the
+head-quarters of the operatives.
+
+"Report to me at once," he said to the operative who answered his call,
+"the minute the Hoffs have arrived home."
+
+"The old man is home now," the operative answered.
+
+"What's that?" cried Fleck.
+
+"He came in alone five minutes ago on foot. The young man is not home
+yet with the automobile."
+
+"Let me know as soon as he arrives," said Fleck curtly, turning away
+from the 'phone.
+
+He was more perplexed than ever. What could have happened? Where was
+young Hoff with the motor? Where was Jane Strong? Why had she
+disappeared after Dean had been hurt? How had she vanished? The Hoffs'
+affairs had assuredly taken a new and bothersome turn, over which Fleck
+sat puzzling many minutes.
+
+Where was Jane Strong? In the answer to that question, he decided at
+length, lay the crux of the whole situation.
+
+
+
+CHAPTER XI
+
+JANE'S ADVENTURE
+
+For more than two hours Thomas Dean and Jane had been vainly circling
+about West Point on their motorcycle, striving to pick up some clue that
+would put them once more on the trail of the Hoffs' car. They had not
+dared to ask too many questions of any one near the ferry, fearful lest
+the people they were pursuing might have a guard posted there to warn
+them in case of a possible pursuit, yet cautious inquiries seemed to
+indicate that all the automobiles on the ferryboat which had preceded
+had been headed to the north.
+
+"There's only one thing we can do," Dean had said despondently. "We have
+got to run out each road we come to until we reach some shop or garage
+where the people would be likely to have noticed the Hoffs. They may
+have stopped somewhere, or we may meet some one coming toward us who
+will remember having passed them."
+
+"It seems like a wild-goose chase," said Jane, "but I suppose there is
+nothing else to do."
+
+The strain of their bitter disappointment was telling on both of them.
+Each felt inclined to blame the other for their having fallen so far
+behind. They rode along in silence, their nerves becoming more and more
+keyed up as their hopes grew less. At garage after garage they paused to
+question the employees.
+
+"Did a big gray car with two men, an old man with a beard and a young
+man driving, pass this way about an hour ago?"
+
+"I don't remember any such car," was the invariable answer.
+
+Time and time again they repeated their query, wording it always the
+same, except for lengthening the interval of time in which the car might
+have passed, for the afternoon was rapidly passing. In their circuit
+they had now reached the roads pointing to the southward.
+
+"We'll try this one more garage," said Dean, as they approached a
+wayside shed bearing a large sign "Gasoline."
+
+"I fear it is only wasting time," said Jane wearily.
+
+"Don't you want the Hoffs caught?" snapped her companion.
+
+"Of course I do," she retorted heatedly, "but I don't see you catching
+them."
+
+"I believe you are half glad of it," snarled her escort as he brought
+the machine to a stop and repeated his usual question.
+
+"Sure there was a car with two men in it like you describe passed here,"
+the man replied to their amazement and delight. "They stopped here for
+gas, as they generally do. About three hours ago, I guess it
+musta been."
+
+Dean shot a triumphant glance at Jane.
+
+"An old man with a gray beard and a smooth-shaven young man
+driving--does that describe them?" he repeated.
+
+"That's them," said the garage proprietor. "They come through here every
+few days, always about the same time."
+
+"Where do they go?" questioned Dean eagerly, feeling at last that the
+scent was growing hot.
+
+The man shook his head in a puzzled way.
+
+"I've often wondered about that. They're always heading south and
+appear to be in a powerful hurry, but the funny part of it is I ain't
+never seen them coming back."
+
+"Do you know their names?"
+
+"No, I can't say I do, though it seems as if I'd heard one of them
+called Fred. I can't say which it was."
+
+"Do they always come by on the same day--on Wednesday?" asked Jane,
+forgetful once more of Dean's warning to let him do the talking lest her
+voice should betray her sex.
+
+"Come to think of it," said the man, apparently noticing nothing
+unusual, "I guess it always is on a Wednesday they come by."
+
+"Is the number of their car anything like this?" asked Dean, exhibiting
+an entry in his notebook.
+
+"I couldn't say," said the man, studying the figures. "I know it is a
+New York license, and the number ends with two nines like this one does.
+What might you be wanting them for?"
+
+He spoke to a cloud of dust, for Dean had started up the motorcycle
+before he finished speaking and already was speeding away.
+
+"Where now?" asked Jane.
+
+"I don't know," he answered frankly, "I only know we are going the
+direction the Hoffs went, and I want to gain on them before they get too
+far ahead. The chap back there had told us all he knew and was beginning
+to get curious, so I thought it better to vamoose."
+
+"It's funny about his never seeing them coming back."
+
+"Probably there is nothing mysterious about that. I have a notion they
+always come up one side the river and down the other, taking the 125th
+Street ferry home. That would not be a bad plan to help them in eluding
+too curious observers. All these German spies are trained to leave as
+blind a trail behind them as possible. The thing we have got to discover
+is what brought them up here. We've just got to find out their
+destination."
+
+"I am afraid there is little chance of our doing that," insisted Jane.
+"We've nothing to go on."
+
+"We've learned something. We know that their destination is somewhere
+between here and Fort Lee on this side of the river. That narrows down
+the search considerably. That's more, too, than anybody else that the
+Chief has had on their trail has learned. Something tells me that we are
+getting warm right now. Obviously the place they come to must be nearer
+West Point than it is New York. They would hardly take too roundabout a
+course, even for the sake of hiding their tracks. Keep a sharp lookout
+for tire tracks leaving the main road."
+
+The route they were following quickly led them into a sparsely inhabited
+mountainous district and instead of the concreted state highway they
+found themselves on a hilly dirt road, full of ruts and loose stones
+that made travel difficult. At times it was all Dean could do to manage
+the machine, so that he had to leave most of the task of observing the
+by-ways to Jane. For more than two miles they had seen neither house nor
+barn. Once or twice they came upon little used lanes leading off through
+the woods, but none of them showed any traces of the recent passing of
+an automobile.
+
+As they came dashing around a curve on a steep down-grade, where hardly
+more than the semblance of a road had been cut into the hillside, Jane
+caught her breath sharply. Above the roar of their own motor she thought
+she heard some other noise, something that sounded like another car
+near-by; yet neither behind nor ahead was there another automobile
+in sight.
+
+"Listen," she cried sharply.
+
+Dean started to slow down, but it was too late. Out of a cut in the
+hillside, half screened by a clump of bushes at the side on which Jane
+was riding, a great gray motor shot out just as they were passing. Jane
+caught just one glimpse of the man on the driver's seat. It was Frederic
+Hoff, frantically twisting at the wheel in an effort to avert the
+threatened collision. There came a thud and a crash as the forward part
+of the Hoff car struck the motorcycle a glancing blow, overturning it
+completely. Too terrified even to shriek, Jane felt herself being
+catapulted out of her seat and flung high in air. Then came a blank.
+
+Her companion did not escape so easily. The heavy machine crashed over
+on him and dragged him several yards. His head, as he landed in the
+roadway, struck a stone, and the motorcycle itself pinned him to the
+earth by its weight, one of his arms doubled up in an alarming fashion,
+as he lay there completely senseless.
+
+Jane fortunately had landed on some soft grass, though with sufficient
+force to leave her badly stunned. As she lay there, a boyish figure in
+her disguise, her senses began gradually to revive, although it was some
+time before she opened her eyes.
+
+Vaguely, as from a great distance, she began to hear voices, and it
+seemed to her that they were German voices, arguing about something. The
+voices seemed angry and excited. At first she did not bother about them.
+She was wondering how badly she was hurt. Her arms and limbs had a
+curious sort of deadness about them, a detached sensation, as if they
+belonged to some one else. She wondered if she was paralyzed and dared
+not try to move them, fearful lest she might find that it was the
+terrible truth.
+
+The voices--the German voices--came nearer, became louder and more
+strident. She struggled to collect her thoughts. Where was she? What had
+happened? Where was Thomas Dean? Gradually some memory of the accident
+came to her. They had been run down by the Hoffs' car. The voices she
+kept hearing were those of the two Hoffs, angrily wrangling about
+something. As she revived further she became acutely conscious that her
+head seemed to be splitting. What was it the Hoffs were arguing about?
+Still lying there motionless, with her eyes closed, endeavoring to
+collect herself, she tried to listen to what they were saying.
+
+"I tell you there is not time. I must hurry. Every minute is precious. I
+cannot delay my work for these swine, no matter if they both are dying
+or dead," old Otto was angrily shouting with many German oaths.
+
+"I tell you," Frederic was saying,--his voice was calmer but
+determined,--"we've got to get these people to a doctor. It's too
+heartless. I will not leave them here."
+
+"And betray us at the last moment, when our plans are all ready,"
+snarled old Otto.
+
+"There is less danger if we bundle them into the car and take them with
+us than if we leave them here," protested Frederic. "Two bodies right
+here at the entrance would be fine, _nicht wahr?_"
+
+His last remark appealed to old Otto.
+
+"That is so," he muttered. "It is not safe. We must hide the bodies,
+both of them, yes?"
+
+The bodies! Jane decided that Dean must have been killed and that they
+thought that she, too, was dead. As she strove to open her eyes she
+could hear Frederic protesting.
+
+"It's inhuman," he cried. "They both are hurt, but perhaps still alive.
+We must take them to a hospital."
+
+"And endanger all our plans," stormed old Otto. "Throw them into the
+woods."
+
+"We'll do nothing of the sort," Frederic insisted, his voice becoming
+unusually stern and severe. "I'm going to get both of these people to a
+doctor at once, I tell you."
+
+With effort Jane opened her eyes and looked cautiously about. Where was
+Thomas Dean? How badly had he been hurt? The Hoffs' automobile was
+slowly backing up. As she looked old Otto sprang out of it and righted
+the motorcycle. As he did so Jane saw the body of Dean lying senseless
+beneath it, but to him the old German paid no attention. He was
+examining the motorcycle and still sputtering that the swine should be
+left to rot.
+
+"We are going to take them with us in the car," directed Frederic in a
+voice of authority. "I command it."
+
+At the word old Otto's mutterings ceased, though he shot a black look at
+the younger man.
+
+"This machine," he suggested, "it is not hurt. I will take it and do our
+work. There is haste. You remain with the car. Do what you will with
+these people."
+
+"Go then," said his nephew curtly. "You can take the train at the first
+station and make time."
+
+As the old man mounted the motorcycle and sped away Frederic sprang from
+the car, and approaching the spot where Dean's body lay, began making an
+examination of his injuries.
+
+"Scalp wound, perhaps fractured skull, broken arm," Jane heard him
+saying aloud to himself. She noted curiously that as soon as he was left
+to himself he began speaking in English.
+
+He left Dean and approached her. As he came nearer she closed her eyes
+again, trying to plan some course of action. Her head was throbbing so
+that she found it impossible to think. She felt toward young Hoff a
+warmth of gratitude for not having gone off and left them helpless as
+his uncle had insisted. Even though he was an enemy of her country, a
+man to be hated, a spy, she could not help being glad for his presence
+there. What would she have done without him, with Dean lying there
+injured and helpless on this lonely mountain road?
+
+"This chap seems only stunned," she heard him say as he bent over her,
+then as he looked closer, she heard him exclaim:
+
+"My God, it's Jane!"
+
+In an instant he was down at her side on his knees. Tenderly one of his
+arms went about her and lifted her head.
+
+"Miss Strong, Jane, Jane," he implored, "Jane dear, speak to me."
+
+Stunned though she still was a flush crept into Jane's cheeks at the
+unexpected term of endearment, though she still kept her eyes closed.
+Gently he laid her back on the turf and hastened to the automobile,
+returning with a flask which he held to her lips. Slowly Jane opened
+her eyes.
+
+"Thank God," he cried. "Jane dear, tell me you are not hurt."
+
+For a moment she lay there, staring wonderingly at him as he bent over
+her imploringly, the tenderest of anxiety showing in every line of his
+face. Unprotestingly she let him slip his strong arm once more under her
+head. In her dazed brain there was a strange conflict of peculiar
+emotions. He was a German, a spy,--she hated him, and yet it was
+wonderfully comforting to her to have him there. Under other
+circumstances she could have loved him. He was so handsome, so masterful
+and so kind, too. He cared for her. Had he not called her "Jane, dear"
+in his amazement at finding her lying there? But she must not let
+herself think of him in that way. It was her duty, her sacred duty to
+trap him, to thwart his nefarious plans against her country. She must do
+her duty just as her soldier brother was doing his in far away France.
+
+Still supported by Hoff's arms she sat up, trying to collect her
+thoughts and gingerly testing the movement of her arms and limbs.
+
+"Tell me," he cried again, "Jane, dear, are you hurt?"
+
+"I don't think so," she managed to say.
+
+With his assistance she got up on her feet and walked uncertainly to
+the car, shuddering as she looked at Dean's crumpled senseless body.
+
+"Your friend," said Hoff, as he placed her in the forward seat and
+wrapped a rug about her, "I am afraid, is badly hurt."
+
+"It's our chauffeur, Thomas Dean," she explained confusedly.
+
+She had been wondering what she could say to Frederic to account for her
+presence there. It was unconventional at least for a girl to be
+motorcycling about the country dressed in man's clothes with a
+chauffeur. Hoff must surely realize now that she had been shadowing him.
+She felt almost certain that he had known it from the very first, since
+that afternoon when he had overheard her telephoning about the "fifth
+book." Yet never by word or manner had he betrayed the fact that he
+suspected her. Beyond his customary reserve in speaking about himself or
+his activities, there was nothing to indicate that he knew anything yet.
+Whatever she told him now she must be careful not to betray her mission.
+Perhaps even in spite of all that had happened she still might be able
+to aid Chief Fleck in trapping them.
+
+But did she really want to trap Frederic Hoff? Had Thomas Dean's bitter
+charge that she was trying to protect him been true? Frederic Hoff loved
+her. She, yes--she had to admit it to herself--she was beginning to love
+him. Could she go on with it?
+
+Hoff had been busy lifting the unconscious Dean into the tonneau. As she
+watched him as he lifted up the body unaided she was conscious of
+admiration of his great strength.
+
+"Will he die?" she whispered.
+
+"I don't know," he answered. "He is badly hurt. We must get him to a
+doctor at once."
+
+He stopped a moment longer to examine the car. Fortunately the glancing
+blow that it had struck the motorcycle had done no more damage than
+shatter one of the lamps and bend the mud guard. Soon they were moving
+rapidly in the direction of New York.
+
+"I think," said Hoff, "we had better leave him in the care of the first
+doctor we come to. We can say that he is an injured motorcyclist we
+found lying in the road."
+
+"And me?" asked Jane, almost fearfully.
+
+"I'll take you back to the city with me."
+
+"No," she replied, "that won't do. I ought to stay by him. Besides, if
+I return with you, it will be hard to explain."
+
+He turned to look inquiringly at her and for a moment drove on in
+silence.
+
+"There's nothing more you can do for the man once he is in competent
+medical hands, except to notify his people. Is he married?"
+
+"No," said Jane, "he's not married. I can tell his friends."
+
+"Did your parents know about"--he hesitated--"about this trip with the
+chauffeur?"
+
+Jane blushed guiltily, wondering what he suspected of her. She hoped
+that he did not think she had a habit of going off on such journeys with
+the chauffeur. Even though the man at her side was officially her enemy
+she resented being put into a position that would cheapen her in
+his eyes.
+
+"No," she replied, "they knew nothing about it."
+
+Hoff drove on in silence. She had feared that he might ask her more
+embarrassing questions, might insist on knowing where she had been going
+when the accident occurred. A panic seized her. What if he should ask
+her? What could she tell him? He had a masterful way about him. If he
+took it into his head to make her confess she realized that she would
+have a struggle to keep from telling him everything. She made up her
+mind that she would not, she dare not answer any more questions.
+
+When he spoke again she was relieved to hear a suggestion instead of a
+query.
+
+"When we have crossed the ferry," he said, "you can put on a dust coat
+to hide your costume, and I will send you home in a taxi. Will that be
+all right?"
+
+"That will do nicely," she replied, gratefully conscious that he was
+endeavoring to plan so that her part in the afternoon's adventures need
+not become public.
+
+Nevertheless she waited nervously while Hoff and the doctor carried Dean
+into the doctor's home. What if the doctor's suspicions should be
+aroused, and he should insist on knowing all the details of the
+accident? To her astonishment the doctor seemed to accept Hoff's brief
+recital of finding an injured motorcyclist on the road without question.
+Perhaps if she had seen the amount of the bills Hoff left to care for
+the chauffeur's treatment she might have understood better.
+
+Yet unconscious though Dean had lain all the way, as they resumed their
+journey without him, she felt a sudden sense of dread at being alone in
+the car with Frederic Hoff. It was not that she longer feared he would
+endeavor to make her tell her reasons for the expedition. She was afraid
+that with just the two of them alone in the car he might seize the
+opportunity to declare his affection for her.
+
+But, to her amazement, he hardly spoke a word to her on all the rest of
+the journey homeward. Once in a while as she ventured a glance in his
+direction, annoyed a little perhaps by this neglect of her, she saw only
+a strong face set in lines of thought, his brow wrinkled in deep
+perplexity, and his blue eyes looking steadily at the road ahead--and at
+something far, far beyond.
+
+Save for an occasional solicitous question about her comfort he did not
+speak again until just after he had put her in a taxi at the ferry. As
+Jane was trying to say her thanks he leaned forward unexpectedly, his
+tall frame blocking the whole doorway.
+
+"Jane," he said, his voice vibrant with emotion, "Jane, you must trust
+me. Everything must come out all right. Some day--some day soon when we
+have won--I am coming to find you and tell you that I love you."
+
+"When we have won!" Jane shuddered and drew back in the car, aflame with
+sudden wrath.
+
+She had read and had heard often of the unspeakable conceit of the
+Prussians. She knew that they regarded themselves as supermen who could
+not be defeated. Her challenged American pride rose to battle. As she
+rode home she was sure now that more than she hated anything else in the
+world she hated Frederic Hoff, the spy, the German, who had dared to
+boast to her that they expected to win.
+
+
+
+CHAPTER XII
+
+PUZZLES AND PLANS
+
+Chief Fleck had spent a sleepless night trying to put two and two
+together. Instead of the answer being "four" as it should have been each
+time he completed his figuring the result was "zero." Time and again he
+mustered the facts into columns, only to succeed in puzzling himself
+the more.
+
+Two German spies, the Hoffs, had set out together in their motor on
+their usual mysterious Wednesday mission. Two other persons, two of his
+most intelligent operatives, Thomas Dean and Jane Strong, had set out on
+a motorcycle to shadow them.
+
+What had happened?
+
+Otto Hoff had returned to his apartment on foot, hours before his usual
+time, seemingly much perturbed about something.
+
+Frederic Hoff had arrived back at the apartment, also on foot, some
+hours later than usual, and the motor had not been returned to its
+usual garage. Frederic Hoff had appeared to be unusually elated about
+something.
+
+Thomas Dean was in a doctor's home somewhere up the Hudson with a broken
+arm and a bad scalp wound and was unable to tell what had become of
+either Miss Strong or the motorcycle.
+
+Jane Strong had arrived home in a taxicab half an hour before Frederick
+Hoff, apparently unhurt but in a most peculiar condition of mind. When
+Chief Fleck had called her on the 'phone she had refused to answer any
+questions. The best he could get out of her was a promise that she would
+come to his office in the morning.
+
+From this situation Fleck's shrewd and experienced mind had been wholly
+unable to make any satisfactory deductions. That something unforeseen
+and unusual had happened to the Hoffs he was certain. It was the first
+time on a Wednesday that they had not returned together. Whatever it was
+that had happened it had depressed old Otto and had been a cause of
+elation to Frederic. What could it have been? That was the poser.
+
+Coupled with this was the annoying fact of Jane Strong's sudden
+reticence. Hitherto he had found her at all times ready and eager
+whenever he called on her--ready to do anything he asked her, or to tell
+him everything. Why had she suddenly balked? He recalled that Dean had
+hinted, and Carter, too, that the girl was becoming interested in the
+younger of the Germans, yet he scouted the possibility of Jane having
+gone over to the enemy's side. A girl of her stock, living with her
+parents, with a brother fighting in France, never could be guilty of
+disloyalty, even if she were in love. Yet how was her disinclination to
+talk to be accounted for? After he had received a report that she was at
+home he had waited, expecting her to call him up. When she had not done
+so, he had called her. She had been positively curt and decisive. She
+had nothing to say to him, she had replied, at present. Dean was safe.
+She would come to his office in the morning. There was nothing for him
+to do but to await her arrival.
+
+He was expecting Carter, too. He had sent him to Nyack the evening
+before as soon as he had learned of Dean's whereabouts. Carter was to
+find out everything that Dean had learned and report as soon as he
+could. It was Carter who arrived first.
+
+"Dean doesn't know what happened to him, nor where the girl went," said
+Carter. "They had lost the Hoffs' trail at the Garrison ferry, as he
+told you over the 'phone. They had to wait there half an hour for
+another boat. They scouted around West Point, and nearly three hours
+afterward they picked up the trail heading toward New York. About ten
+miles south of West Point they were clipping along a mountain road when
+something happened. Dean is not sure whether he hit a stone in the road
+or whether an automobile struck them. He was knocked unconscious and
+didn't remember anything more until he came to and found the doctor
+setting his arm."
+
+"Who took him to the doctor's?"
+
+"It was a couple, the doctor said, who explained that they had found
+Dean lying in the road under his wrecked motorcycle. The doctor could
+not remember what the couple looked like. Said he had been too busy
+looking after the injured man. I did worm out of him, though, that the
+man had left two hundred dollars with him to take care of Dean."
+
+"That's funny," said the chief.
+
+"It sure is," said Carter. "Looks like hush money to me. What does the
+girl say?"
+
+"Nothing yet," said Fleck. "She wouldn't talk at all last night, but
+she's coming here at ten."
+
+"That's funny," said Carter. "Why wouldn't she talk?"
+
+"I don't know yet," said Fleck decisively, "but I am going to find out.
+Do you really suppose that she has fallen in love with young Hoff?"
+
+Carter shook his head.
+
+"Dean thought so, and I know that Dean was in love with her himself, but
+I don't know. I'd bank on that girl somehow, even if she is in love."
+
+"There she comes now," said the chief as he heard the door of the outer
+office open.
+
+As Jane entered she faced the two men almost defiantly. She too had had
+a sleepless night. Although she herself had been physically uninjured in
+the accident the shock to her nerves had left her unstrung, and besides
+she had been bothering all through the dark hours as to how much of what
+had happened in the last few hours it was her duty to tell to
+Chief Fleck.
+
+As her personal relations with Frederic Hoff and her feelings toward him
+had in no way affected her sense of duty she felt that it was
+unnecessary for her to report the declaration of love he had made to
+her. Surely an affair that involved only the heart was her own property
+so long as she faithfully reported anything and everything that might
+lead to the exposure of the Hoffs' plots. She could not see that it was
+any of Chief Fleck's business, nor her country's either, if Frederic
+Hoff had fallen in love with her. At any rate it would be utterly
+impossible for her to make any statement about her own feelings toward
+him. Even in her own heart and mind she was not quite sure what they
+were. From the first his forceful personality had had great charm for
+her. His obvious interest in her she had found delightful and
+flattering. When she recalled how gallantly he had insisted on remaining
+to rescue Dean and herself, even before he knew her identity, she was
+filled with admiration for him. Yet always matched against all that she
+found lovable in him was the knowledge that he was a German, a traitor,
+a spy, perhaps a murderer, and at times she felt that she hated him with
+a hatred that never could be overcome.
+
+"Well," said Fleck, studying her countenance, "what have you to tell
+us?"
+
+"How is Dean?" she asked. "Will he live?"
+
+Fleck and Carter exchanged glances. Was she, they wondered, really
+concerned in the handsome young chauffeur's welfare, or had she merely
+put the question to gain time in framing what she was going to say?
+
+"I just left him," said Carter, in response to an almost imperceptible
+nod from the chief; "he's all right except for a scalp wound and a
+broken arm."
+
+"I'm glad," said the girl impulsively.
+
+"What happened to him?" asked Carter.
+
+"Don't you know? The Hoffs' automobile hit us and overturned the
+motorcycle."
+
+"The Hoffs' car!" cried Fleck and Carter together.
+
+"Yes, I thought you knew."
+
+"Tell us everything," demanded Fleck. "Where did it happen? Did they
+run you down purposely?"
+
+"I don't think so; in fact I am sure they didn't. It was entirely
+accidental."
+
+"Where did it happen? All Dean could remember was that you had picked up
+their trail about ten miles south of West Point. He could not tell how
+the accident occurred. He didn't even mention the Hoffs or seem to
+suspect that they were anywhere near at the time."
+
+"I don't think he saw their car at all," Jane explained. "I caught just
+a glimpse of it before we were crashed into. We were on a mountain road
+going down a steep hill when their motor shot out of a deep cut just as
+we were passing."
+
+"What happened then?"
+
+"I must have been stunned for a moment or two. When I regained my senses
+the Hoffs' car had stopped, and Frederic was backing the car to where
+the accident had happened. His uncle was storming at him for stopping.
+He wanted Frederic to go on and leave us there, but Frederic wouldn't do
+it, and they quarrelled. Frederic won out by pointing out that two
+bodies lying at the entrance would arouse suspicion."
+
+"At the entrance to what?"
+
+"I don't know. He didn't say. I think I could find the place again."
+
+"We've got to find it," said Carter.
+
+"Indeed we have," Jane agreed, "and quickly, too. I fear we are going to
+be too late. Old Mr. Hoff seemed to be in terrible haste and spoke of
+their plans being nearly completed."
+
+"Go on," said Fleck quietly, "tell us the rest."
+
+"Frederic Hoff stayed behind to pick us up, and the old man went off on
+the motorcycle. I heard them talking about his taking a train at the
+nearest station."
+
+"What did young Hoff do when he found it was you lying there?"
+
+"He seemed surprised and startled."
+
+"What did he say?"
+
+Jane colored and hesitated. There rose in her mind the picture of his
+tall figure bending over her, with anguish in his eyes, with expressions
+of endearment on his lips. She could not, she would not tell them what
+he had said.
+
+"He asked if I was hurt."
+
+"Is that all?"
+
+Again she blushed and hesitated.
+
+"That's all."
+
+"Did he not seem amazed at finding you there? Did he not ask you to
+account for your presence there?"
+
+"No," said the girl, firmly, "he didn't."
+
+"Didn't he question you at all?"
+
+"No," she insisted, "he was busy getting Dean into the car. He was
+unconscious, and it looked as if he was badly hurt."
+
+"Queer, mighty queer," muttered Carter to himself.
+
+"Didn't he ask you who Dean was?" questioned Fleck.
+
+"I explained that he was our chauffeur. He may have known him by sight
+at any rate."
+
+"Go on."
+
+"We stopped at the house of the first doctor we came to and left Dean
+there, and then Mr. Hoff brought me on home in the car. At the ferry he
+put me into a taxi."
+
+"What did you talk about on the trip home?" asked Fleck suspiciously.
+"Didn't he try to pump you?"
+
+"We hardly talked at all. He seemed concerned only in getting me home
+without its becoming known that I had been in an accident."
+
+"Is that all?" asked the chief. She could see by his manner that he
+mistrusted her, that he felt that she was keeping something back.
+
+"We hardly exchanged a dozen words," she insisted.
+
+Fleck shook his head in a puzzled way.
+
+"I can't understand it at all," he said. "Old Otto is a common enough
+type of German, painstaking, methodical, stupid, stubborn, ready to
+commit any crime for Prussia, but the young fellow is of far different
+material. He has brains and daring and initiative. He is far more alert
+and more dangerous. I cannot understand his finding you there and not
+trying to discover what you were doing."
+
+"I can't understand that either," Jane admitted.
+
+"There's no doubt in my mind," the chief continued, "that Frederic Hoff
+is the real conspirator, the head of the plotters."
+
+"Why do you say that?" asked Jane quickly. "What did you find out when
+you searched the apartment yesterday?"
+
+She felt certain from the manner in which he spoke that he must now have
+some damning evidence of Frederic Hoff's guilt. He was not in the habit
+of making decisions without proof.
+
+"We found," said Fleck, his keen eyes fixed on her face as if trying to
+read her innermost thoughts, "a British officer's uniform hanging in
+Frederic Hoff's closet, proof positive that he is a dangerous spy."
+
+"And," said Carter, pointing to the two clippings lying on Fleck's desk,
+"in the old man's waste-paper basket we found those."
+
+Jane picked up the clippings and examined them curiously.
+
+"What are they?" she asked, looking from one to the other; "cipher
+messages of some sort?"
+
+"We think so," said Carter. "We don't know yet."
+
+"I've noticed these peculiar advertisements often," said Jane, studying
+the clippings, "but I never thought of connecting them with the Hoffs. I
+wonder--" Fleck and Carter had their heads together and were talking in
+low tones.
+
+"I wonder," said the chief, "what young Hoff is up to. He must have
+known the girl was there to spy on him. I can't understand his not
+quizzing her."
+
+"He's a cagey bird," Carter replied. "They are both of them expert at
+throwing off shadowers. Both of them know, I think, they are
+being watched."
+
+"Oh, listen," interrupted Jane, all excitement. "I believe I can read
+this cipher. The number of letters in the word in big type at the
+beginning of the advertisement is the key. See, this word here is
+'remember'--that has eight letters. Read every eighth word in this
+advertisement. I've underlined them."
+
+Fleck took the paper quickly from her hand and he and Carter bent
+eagerly over it to see if her theory was correct.
+
+ REMEMBER
+
+ Please, that our new paste, Dento, will
+ _stop_ decay of your teeth. Sound teeth
+ are _passports_ to good health and comfort.
+ No good _business_ man can risk ill health.
+ It is _closely_ allied with failure. The
+ teeth if not _watched_ are quickly gone.
+
+ USE DENTO
+
+ A genuine, safe, pleasing paste for the
+ teeth, prepared and sold only by the
+ Auer Dental Company, New York.
+
+"Stop passports business, closely watched," repeated Fleck aloud. "That
+certainly makes sense and fits the facts, too. In the last few days we
+have drawn the net closely around a gang of supposed Scandinavians who
+have been busy supplying passports to suspicious-looking travelers.
+Let's see the other advertisement."
+
+Excitedly the three of them read it together as Fleck underscored every
+fourth word.
+
+ DON'T
+
+ Forget it is _imperative_ for one and _all_
+ to use cleansing _agents_ on teeth that
+ _leave_ no bad results. "_Ship_ more of
+ that _wonder_-working paste immediately.
+ _Workers_, employers, wives, all _ready_ to
+ commend it. _Friday's_ supply gone,"
+ writes a druggist, to whom a big shipment
+ was made last week.
+
+ USE DENTO
+
+ A genuine, safe, pleasing paste for the
+ teeth, prepared and sold only by the
+ Auer Dental Company, New York.
+
+"Imperative all agents leave ship. Wonder-workers ready Friday," read
+Fleck. "That's surely a message, a warning to Germany's agents to get
+off some ship or ships before they are destroyed. You, Miss Strong, have
+heard old Otto talk about the wonder-workers, whatever they are, being
+nearly ready. I guess he means bombs--bombs to blow up American
+transports. This message says they will be ready Friday."
+
+"And to-morrow's Friday," said Jane.
+
+
+
+CHAPTER XIII
+
+THE SEALED PACKET
+
+"Is this Miss Strong?"
+
+Jane, her face blanching, held the receiver in wavering hands for a
+moment before she could muster courage to answer. She had recognized
+Frederic Hoff's voice speaking. What could he want with her now?
+
+"It is Miss Strong," she managed to answer.
+
+"This is Frederic Hoff. May I come in for a moment? It is most
+important."
+
+Again Jane hesitated. Frederic was the last person in the world she felt
+like seeing just at this moment. Only five minutes before she had
+arrived home from Chief Fleck's office. She was under orders to hold
+herself in readiness to start immediately for the scene of yesterday's
+accident. That this trip, unless their plans miscarried, would
+inevitably result in the exposure and disgrace of both the Hoffs she
+felt morally certain. To face on friendly terms the man whose downfall
+she was plotting, the man who only a few hours before had told her that
+he loved her, seemed a task far beyond her endurance, a situation too
+tragic for her to cope with.
+
+Duty, her duty to her country, her honor, her patriotism, her affection
+for her soldier brother, all bade her mask her feelings and seek one
+more opportunity of leading Hoff to betray himself in conversation if
+that were possible. Yet, to her own amazement and horror, her heart
+protested vigorously against such action. Harassed as she was by
+conflicting emotions, worn out by the trying experiences that had been
+hers the last few days, she realized at last that she was really in love
+with Hoff. The throb of joy that she had experienced at the sound of his
+voice, the thrill that came to her each time she saw him, the delight
+she found in his presence, the fact that despite all the circumstances,
+she wanted to be near him, to be with him, convinced her against her
+will and judgment that her heart was his. In vain she marshalled the
+damning facts against him. She tried to remember only the expression of
+murderous hate she had seen on his face the night that her predecessor,
+the other K-19, had been murdered. She tried to think of him only as a
+treacherous spy, an enemy of her country forever plotting to destroy
+Americans, yet she could not. However base and treacherous and low her
+reason told her Frederic Hoff must be, her refractory heart persisted in
+beating faster at the prospect of his coming.
+
+Hitherto not much given to self-analysis, she now found herself
+wondering at herself. What could be the matter with her? Why must she
+love this rascal? Why could she not fall in love with some decent,
+clean, patriotic young American, with some man like Thomas Dean?
+Chauffeur though he was now pretending to be, she knew that he was a
+college man, well-bred, and traveled. She knew, too, that Dean was in
+love with her. For him she had a sincere liking, great admiration even,
+and toward him now she was experiencing that feeling of sympathy a woman
+always has for the man she cannot love. But her feeling toward Dean, she
+classified as only that of friendship, nothing at all like the
+passionate affection that was rapidly drawing her closer and closer
+to Hoff.
+
+Dared she see him now? Might not her love for him overcome her high
+desire to be of service to her country? Might she not be led by her
+unruly heart into betraying to him the fact that he was in the most
+imminent peril?
+
+Yet she must see him, she told herself. Perhaps this very day he might
+be arrested and imprisoned. She might never again have the opportunity
+of seeing him alone and of talking with him. Into her troubled brain
+came a daring thought. Perhaps it was not too late, even yet, to turn
+him from his evil course. Was there, she wishfully wondered, any
+possibility of her leading him, through his love for her, to forsake his
+comrades, even to betray them? No, she admitted to herself, that was a
+preposterous idea. He was too dominating, too forceful, too determined,
+to be influenced to anything against his will.
+
+"May I come in, please?" he kept insisting over the 'phone.
+
+"Only for a minute," she answered tremulously. "I'm going out soon. I
+have an engagement."
+
+"I'll come right over. I will not keep you long."
+
+As she awaited his arrival, subconsciously desirous of looking her best
+in his presence, she stopped almost mechanically before her mirror to
+adjust her hair, letting him wait for her for a few minutes.
+
+He sprang forward to meet her as she entered the room where he was, his
+face beaming with delight at the sight of her.
+
+"Jane," he cried, with a volume of meaning in the monosyllable, as
+seizing her hand, he held it tightly and gazed earnestly into her face.
+
+Bravely she tried to meet his gaze, to read in his face if she could the
+object of his unexpected visit, but her eyes fell before his, and the
+hot blood surged into her cheeks. Within her raged a desperate battle
+between her head and heart. Mingled with her unwelcome quickening of the
+pulse at his approach and admiration for his audacity in coming to her
+when he must know that she knew what he was, there was also an
+overwhelming sense of futile rage that he, a scheming German plotter,
+dared intrude his presence into an American home.
+
+"I'm glad to see you appear no worse for your accident," he said,
+releasing her hand at last. "You got home all right, without attracting
+any one's notice?"
+
+"Oh, yes," she answered, trying to make her reply seem wholly
+indifferent and disinterested.
+
+"Your chauffeur is all right, too," he went on. "I telephoned this
+morning. He had already left the doctor's. There's nothing more the
+matter with him than a broken arm and a scalp wound. That's fortunate,
+isn't it?"
+
+"Very fortunate," she admitted.
+
+All at once as they stood there there seemed to have arisen between them
+an invisible, impenetrable barrier. They faced each other wordlessly,
+each embarrassed by the knowledge of the secret gulf that was between
+them. Hoff was the first to recover from it.
+
+"Come," he said, "sit down. There is something I wish to say to
+you,--something of the utmost importance, Jane."
+
+Still struggling with her emotions, Jane allowed him to place a chair
+for her and seated herself, striving all the while to crush back into
+her heart the warmth of feeling toward him that always overwhelmed her
+in his presence, endeavoring to present to him a mask of cold
+indifference. Yet her curiosity, as well as her affections, had been
+greatly stirred by his remark. What was it that he was about to say to
+her? Did he intend, in spite of the insurmountable obstacles between
+them, dared he, ask her to marry him? Tremblingly she waited for what he
+had to say.
+
+"Jane," he said, "you know that I love you. I am confident, too, that
+you love me."
+
+"I don't love you," she forced her unwilling lips to say. "I can't. When
+our country is at war, when she needs men, brave men, how could any true
+American girl love any man who stayed at home, who idled about the
+hotels, who--"
+
+"Girl," his voice grew suddenly stern and commanding, softening a little
+as he repeated her name, "Jane, dear, let me finish. I love you. There
+are grave reasons--all-important reasons--why I may not now ask you to
+be my wife."
+
+"I never could be your wife," she cried desperately, "the wife of a--"
+
+The word died in her throat. She could not bring herself to tell him,
+the man she loved, the thing she knew he was.
+
+"My Jane," he said, wholly unheeding her impassioned protest, "you know
+little yet of what life means in this great world of ours. You, here in
+your parents' home, sheltered, protected, inexperienced, have not the
+knowledge nor the means of judging me. You must take me on faith, on the
+faith of your love for me. For a woman, life holds but two great
+treasures, two loves--her husband's and her children's. With a man it is
+different. Love is his, too, but there is something more, something
+bigger--duty. Here in your country--"
+
+Even in her distress she caught his phrase "here in _your_ country" and
+turned ghastly white. Always before in talking with her he had spoken of
+himself as an American. Did he realize, she wondered, that he had at
+last betrayed himself to her? Was he about to strip the mask from
+himself and his activities at last, and in the face of it all expect
+her, Jane Strong, to admit that she loved him?
+
+"Here in your country," he went on placidly, "women forced by economic
+conditions have been driven from home into business, into politics, into
+office-holding, even into war activities. Longing for the clinging arms
+of little children they are striving to forget in assuming some part in
+the affairs that belong properly to men. But to the true woman love must
+ever mean more than duty, more than country. Those are words for men. A
+woman, if she would find happiness, must follow her heart, must forsake
+all for the man she loves. A woman's duty is only to the man she loves,
+just as a man's duty is to be true to himself, to his country."
+
+"But," she cried, "you told me you were American, that you were born
+here?"
+
+"Jane," he persisted, with an impatient gesture, "we will not discuss
+that now. I love you. You must trust me in spite of everything. I know
+you will. You must. I can answer no questions. I can make no
+explanations. I can only say I love you. That must suffice."
+
+"No, no," she protested, almost sobbing.
+
+"I came here to-day," he went on calmly, "to ask a favor of you."
+
+"A favor," she cried.
+
+Calming herself she forced herself to look into his face. There was
+something so monstrously unbelievable about his audacity that she could
+hardly believe her ears. What sort of a credulous stupid creature was
+he, she angrily asked herself, that in one breath he could all but
+confess to her that he was a spy and in the next beseech her to do him a
+favor. Yet there came to her now a remembrance of her duty to her
+country. She felt that she must mask her feelings toward him, that if
+she was to be of service she must endeavor bravely to lead him on. She
+must try to induce him to confide in her. Hard as her task might be,
+what was it compared to the work her brother and those other brave
+American boys had undertaken facing the fire of death-dealing guns,
+facing the terrible gas attacks, living for days and weeks in those
+terrible trenches? Reinforced by a sense of duty, she made a pitiable
+effort at cordiality as she asked:
+
+"What is it you wish of me?"
+
+From one of his pockets he had brought forth a small packet which he
+held out to her. In spite of her agitation she forced herself to study
+it observingly, making note that it was tied with strong cord and sealed
+in several places with red wax. Curiously, too, she noted that on it was
+written her own name.
+
+"Jane," said Hoff, "to-night I am going away. I may be absent for only a
+day or two if all goes well, but it is possible I may never come
+back,--may never be able to see you again."
+
+She caught her breath sharply. There was the solemnity of finality in
+his tones. Where was he going? What might happen to him? She realized
+that the journey he was about to make was in connection with the plot
+that she and Chief Fleck were seeking to uncover. Evidently he
+anticipated peril in what he was about to undertake. Suppose he should
+be trapped in the commission of some act inimical to America's welfare?
+What would happen to him? He would be arrested, of course. More than
+likely he would be sent to prison. He might even be shot as a spy. What
+if she were the one responsible for his meeting a disgraceful death?
+How could she go on with it? She must warn him. She must try to persuade
+him to give up his plans. She tried hard to steady herself, to think
+calmly. She must listen to every word he was saying and try to
+remember it.
+
+"This little packet is for you," he went on. "I want you to keep it
+safely. In case anything happens, in the event that within one month I
+have not returned and you have heard nothing of me, I wish you to open
+it and keep what it contains. Promise me that you will do what I ask."
+
+In a panic of indecision she got up from her chair, trying to frame a
+score of questions, but none of them succeeded in passing the barrier of
+her trembling lips.
+
+"Promise me," he said softly yet impellingly, as he placed the little
+packet in her hand and closed her fingers over it.
+
+"I promise," she whispered, hardly knowing what she said.
+
+Quickly he caught her in his powerful arms. For just a second he held
+her there, his face close to hers, his blue eyes burning into hers with
+a steady inscrutable gaze as if he was trying to read in them the love
+her lips had refused to speak.
+
+Then, so quickly that it was all over before she quite realized what had
+happened, he had kissed her passionately full on the lips and was gone.
+
+Overcome with the lassitude which follows emotional crises, trembling in
+every limb, weak as from a long illness, the girl sank back into a
+chair, still clutching in her hand the sealed packet Hoff had entrusted
+to her. Minute after minute she sat there with staring eyes, with heart
+beating madly, with her whole body racked with the torment of
+her thoughts.
+
+Slowly she lifted the packet and turned it over and over, wondering what
+it could possibly contain, questioning herself as to what could have
+been Frederic Hoff's motive in entrusting it to her. Was there, she
+wondered, under those seals, some evidence of his guilt and treachery
+that he had not dared to leave behind him? He must have known that she
+suspected him and was seeking to entrap him. Had he, knowing all this,
+but sensing the love for him that he had kindled in her, taken advantage
+of it and extorted from her her promise to keep it safe?
+
+Wherein lay her duty now? More than ever she was certain that Frederic
+Hoff was on some hazardous mission for the enemy. He had all but
+admitted his nationality to her. Her own country's welfare demanded that
+the Hoffs' plans should be discovered and thwarted. Should she, or
+should she not open the package? Possibly it contained some secret code,
+some clue to the dastardly activities in which he and his uncle
+were engaged.
+
+But her heart rebelled. She recalled what he had said, that she must
+take him on trust. The memory of his burning kiss, of that last earnest
+look he had given her, refused to be forgotten. Whatever he was, however
+base the work in which he was engaged, she knew down deep in her heart
+that Frederic Hoff had been earnestly sincere when he had said that he
+loved her.
+
+As she debated with herself what she ought to do, the telephone rang
+again. It was Chief Fleck.
+
+"Can you meet me at the 110th Street subway station in half an hour?" he
+asked. "I'll be waiting in my car. Arrange it, if you can without
+arousing your family's suspicion, to be away all night."
+
+"I will be there," she answered.
+
+As she turned away from the telephone with sudden resolve she thrust the
+sealed packet, still unopened, into the bosom of her gown.
+
+"I promised him," she said almost fiercely. "I'll keep my promise. That
+much at least I owe our love."
+
+
+
+CHAPTER XIV
+
+THE MOUNTAIN'S SECRET
+
+In a turmoil of mental anxiety Jane waited the arrival of Chief Fleck at
+the place he had designated. She was still badly wrought up by the scene
+through which she had just passed with Frederic. There were moments when
+her heart insisted that, regardless of the despicable crimes that were
+laid at his door, she should forsake everything for him, for the man she
+loved. Had there been in her mind the slightest possible doubt as to his
+guilt she might indeed have wavered, but the evidence of his treachery
+seemed too manifest! She loathed herself for caring for him and felt it
+her sacred duty to go on with her work of aiding the government in
+trying to entrap both of them; yet how could she ever do it?
+
+As she waited she debated with herself whether or not to tell Chief
+Fleck what had passed between herself and Frederic. After all, why
+should she? That was her own secret, not the country's. If she stifled
+her love, and gave her best efforts to aiding the other operatives in
+running down the conspirators, what more could be expected of her?
+Certainly she was not going to tell any one of the sealed packet
+Frederic had entrusted to her. She had promised him she would keep it
+safe. Surely there could be no harm in that, yet the little parcel,
+still in the bosom of her gown where she had thrust it, seemed to be
+burning her flesh and searing itself into her very soul.
+
+In strong contrast with her own spirit of martyrdom was Fleck's manner.
+Never before had she seen him in such high spirits as he was when he
+drew up before the subway station in a low car built for speed. On the
+seat beside the chauffeur was a young man whom she recognized as another
+of the operatives. As Fleck swung the door of the tonneau open for her
+she noticed lying on the floor under a rug several rifles and drew back
+questioningly.
+
+"Come on, Miss Strong," he cried gaily. "Don't be afraid of them. We
+may be glad we have them before we return from our hunting expedition."
+
+"But," she asked hesitatingly as she took her seat beside him, "you
+don't expect to shoot these men--without a trial."
+
+Her heart seemed torn in anguish as she sensed anew the peril that lay
+ahead for Frederic. Misgivings that she might be unable to fulfil her
+task seized her, and she was smitten with reproach for her own conduct
+toward him. Why, an hour ago, when there was still opportunity, had she
+not warned Frederic? If he were really sincere in the affection he
+professed for her maybe she might have persuaded him, if not to betray
+his comrades, at least to abandon them and escape from the country. Yet
+even now her reason told her that any plea she might have made would
+have been worse than futile. Above and beyond his love for her she
+understood that he held sacred what he conceived to be his duty, his
+misguided duty to his erring country. It was too late now for regrets,
+for repentance, too late for her to do anything but to try to serve her
+country, cost her what it might, yet anxiously she awaited Chief
+Fleck's reply to her question.
+
+"Wouldn't I shoot them all on sight, gladly, the damned spies," he
+responded. "That's the great trouble with this country, Miss Strong.
+We're too soft-hearted and chivalrous. The Germans realize that war and
+sentiment have no place together. If killing babies and destroying
+churches will in their opinion help them win the war they do it without
+compunction. The civilized world decided that poison gas was too brutal
+and dastardly for use, even against an enemy, but that didn't stop the
+Huns from using it. They put duty to Germany above all else, and if
+their country expects it are ready to rob, murder, use bombs, betray
+friends, do anything and everything, comforted by the knowledge that
+even if we do catch them at it here in this country all we will do to
+them will be put them in jail for a year or two. If I had my way I'd
+shoot them all on sight."
+
+"Without any evidence--without trying them?" questioned Jane.
+
+"Without trial, yes--without evidence, no; but in the case of these
+Hoffs we have evidence enough to stand them both up and shoot them."
+
+"Have you learned more?" she asked quickly. "Is Frederic, too, involved
+with his uncle?"
+
+He shot an appraising glance at her. He had been inclined to regard
+Dean's suspicion that she was in love with the younger Hoff as the mere
+figment of jealousy, but where two young persons of the opposite sex are
+thrown together, there is always the possibility of romance. Jane
+colored a little under his searching glance, yet what he read in her
+face seemed to satisfy his doubts, and he made up his mind to take her
+fully into his confidence.
+
+"Thanks to your quick wit in reading those advertisements," he said, "we
+have now a fairly complete index of the Hoffs' activities in the last
+six months. I have been spending the last two hours in going over all
+the Dento advertisements that have appeared. For weeks they have been
+sending out a regular series of bulletins."
+
+"Bulletins about what?" asked Jane.
+
+"About everything of interest to the secret enemies of our country:
+explanations of where and how to get false passports, detailed
+statements of the sailings of our transports, directions for obtaining
+materials for making bombs, instructions for blowing up munition plants,
+suggestions for smuggling rubber, orders for fomenting strikes. They
+even had the nerve to use the name of William Foxley, signed to a
+testimonial for Dento."
+
+"Who is William Foxley?" asked Jane curiously.
+
+"In the Wilhelmstrasse code that was in use when Von Bernstorff was
+still in this country; in sending their wireless messages they made
+frequent use of proper names which had a code meaning. Boy-ed was
+'Richard Houston,' Von Papen was 'Thomas Hoggson' and Bolo Pascha was
+always mentioned as 'St. Regis,' In this same code 'William Foxley'
+always meant the German Foreign Office."
+
+"But surely you did not learn this from the advertisements?"
+
+"Not at all. Hugo Schmidt, who was reputed to be the paymaster of the
+gang, was caught trying to burn a copy of this code at the German Club.
+With the records of their wireless messages our government managed to
+reconstruct the whole code. The use of a word or two from this code in
+these advertisements is most significant. It shows that whoever prepared
+these advertisements was high in the confidence of the German
+government. Only the very topnotch spies are likely to be permitted to
+know the diplomatic code."
+
+"And you think, then, that Otto Hoff may be the head of the conspirators
+in this country?" said Jane.
+
+"Not Otto--Frederic," said Fleck quickly. "The young man, I am certain,
+was the director, probably sent out from Berlin after the country became
+too hot for Von Papen and Boy-ed. The old man, I believe, merely carried
+out his orders. I doubt even if they are uncle and nephew."
+
+"I think you are wrong about that," protested Jane. "Whenever I was
+listening over the dictograph it was always the old man who was so
+bitter against America. It was he who talked about the wonder-workers
+and the necessity for haste. I never heard Frederic say
+anything--anything disloyal, that is."
+
+"The fact that he knew enough to keep his mouth closed shows that he is
+the more intelligent of the two. Don't forget, too, that at times he
+even dared to don the uniform of a British officer. You saw him
+yourself. Undoubtedly he is the more dangerous of the pair."
+
+"But who read these advertisements?" asked Jane, seeking to change the
+subject. "For whom were the bulletins intended?"
+
+"It was one of their ways of keeping in communication with their
+thousands of secret agents all over this country. I wouldn't be
+surprised if occasionally these advertisements were printed in Texas
+papers and shipped over the border into Mexico. We have been watching
+the mails and the telephone and telegraph lines for months, yet all the
+while Mexico has been sending messages across, telling the U-boats
+everything they needed to know. We never thought of checking up the
+advertising in papers in the Mexican mail."
+
+"But what about the messages old Mr. Hoff left in the bookstores? Was
+that part of the plan, too?"
+
+"It may have been simply a duplicate method of communication in case
+the other failed. The Germans here know that they are constantly watched
+and take every precaution. We'll land that girl as soon as we have the
+Hoffs safe behind the bars, and then we'll soon see if Carter's
+dachshund theory was right."
+
+"But who," asked Jane, "is the spy in our navy? Who signalled the Hoffs'
+apartment and supplied them with the news about our transports? Was it
+Lieutenant Kramer?"
+
+"Probably," said Chief Fleck carelessly, "that is not my end of the
+work. It is up to the Naval Intelligence Bureau to clean out the spies
+in the navy. I'm after the boss-spy. After we land him it will be easier
+to get the small fry. A defiant German prisoner once boasted to me that
+Germany had a man on every American ship, in every American regiment,
+and in every department in Washington. I suspect it comes pretty near
+being true. A country that has so many citizens with German names and
+such an enormous population of German descent has its hands full."
+
+As they talked the chief's car had crossed the ferry, and turning north
+through Englewood, was heading rapidly in the direction of West Point.
+
+"Where are we going now?" Jane ventured to ask. "To the place where I
+was yesterday--where we had the accident?"
+
+"Not directly," the chief replied. "I sent Carter and some men up there
+ahead of us to do some reconnoitering. I'll get in touch with Carter at
+the restaurant at the State Park. He was to call me up. We are nearly
+there now."
+
+As the car swung into the park and stopped before the entrance of the
+two-story restaurant building, Fleck sprang hastily out and started for
+the telephone but stopped abruptly at the sight of a young man with
+bandaged head and with one arm in a sling who rose from the concrete
+steps of the building to greet him.
+
+"Why, Dean," he exclaimed in amazement, "what are you doing here? How
+did you get here?"
+
+"You don't think I was going to be left out at the finish," laughed the
+chauffeur.
+
+"But your injuries, your arm--"
+
+"Both all right, as right as they'll be for several weeks."
+
+"But how did you know we were coming here? How did you manage to get
+here?"
+
+"Carter stopped on his way out to make sure about the road. I wanted to
+come with him, but there was no room in his car. He refused to bring me,
+anyhow. I managed to worm out of him what your plans were, and the
+doctor's jitney did the rest."
+
+"Well," growled the chief, with simulated indignation, though secretly
+delighted with Dean's show of spirit, "I suppose there's nothing else to
+do but to take you along. Climb in there beside Miss Strong."
+
+As Dean approached the car Jane rose in amazement.
+
+"Oh, Thomas, Mr. Dean," she cried, "I'm so glad to see you. I was afraid
+yesterday that you had been badly hurt."
+
+"It was a close shave for both of us," he admitted, flushing with
+delight at the warmth of her greeting, "but what are you doing here? The
+Chief had no business to bring you on a trip like this."
+
+All his affection for the girl had revived at this unexpected sight of
+her, and with a lover's righteous anxiety he resented Fleck's having
+exposed her to the probable perils of this expedition to the enemy's
+secret lair.
+
+"They needed me," she said simply, "to show them the way."
+
+"That need exists no longer," he protested, "since I am here. The Chief
+must send you back."
+
+"Don't be absurd," she objected warmly.
+
+"But it is no place for a woman," he insisted doggedly, kicking
+meaningly at the rifles on the floor of the car. "There may be a fight.
+These men are desperate and dangerous and more than likely will resist
+any attempt to arrest them."
+
+"I want to be there to see it if they do," said Jane calmly.
+
+"Please, won't you, for my sake," he begged, "go back home or at least
+wait here for us?"
+
+"I won't," said the girl doggedly.
+
+"I'll ask the Chief to send you back."
+
+"Don't you dare," she retorted hotly, resenting his air of protection
+toward her.
+
+She was glad for the presence of the two other men in the car. She
+sensed that it was only their being there that kept Dean from making a
+scene. There was nothing in his manner toward her now of the obsequious
+chauffeur. While she admitted to herself that there was no longer the
+necessity for his continuing in his fictitious character she strongly
+resented his loverlike jealousy for her welfare and welcomed the chief's
+return, for she saw from his face, as he came running up to the car,
+that he had received some sort of news that had highly delighted him.
+
+Almost before he was in the car he had given orders to start, leaving no
+opportunity for Dean to make his threatened protest against
+Jane's presence.
+
+"I got Carter on the 'phone," Fleck explained hurriedly as they swung
+out of the park and turned northward. "He has succeeded in locating the
+place the Hoffs go every week. It is about three miles back off the
+road, over toward the river from the place where you two had that
+accident yesterday. Away off there in the woods in a deserted locality
+is a sort of club, the members of which are Austrians or Germans. They
+have given it out that they are health enthusiasts and mountain
+climbers, 'Friends of the Air,' they call themselves."
+
+"Who are they really? What are they doing there?" asked Jane
+interestedly.
+
+"Carter has not had time yet to learn much about them. The place was
+some sort of a health resort or sanitarium that failed several years
+ago. Last summer it seems to have been taken over by this bunch of
+Germans. At times there are only two or three of them there, but
+recently the number has increased. Carter thinks there must be a dozen
+men there now."
+
+"How did he locate the place?" asked Dean.
+
+"Carter is a real detective," said the chief enthusiastically. "He
+reasoned it out that where there were Germans there must be beer. He
+scouted along the main road until he found a wayside saloon where, as he
+had shrewdly suspected, they got their liquid supplies. From the
+proprietor of the place and the hangers-on he had no trouble in getting
+the information he wanted without arousing their suspicions."
+
+"Where is Mr. Carter now?" asked Jane.
+
+"He's waiting for us a few miles up the road."
+
+"He has only four men with him, hasn't he?" questioned Dean.
+
+"That's all."
+
+"And there are four of us here."
+
+"Three and a half," said the chief, motioning to Dean's bandaged arm.
+
+"It's my left arm," he retorted. "I can handle a revolver, at least,
+with my good arm."
+
+"And I can shoot, too," boasted Jane; "that makes nine of us."
+
+"Nine of us against twelve of the enemy," said the chief thoughtfully.
+"It looks like a busy evening."
+
+"And don't forget," warned Jane, "that the Hoffs are coming up this
+evening. At least young Mr. Hoff told me this morning that he was going
+away this evening. That makes two more on the other side."
+
+"And one of them," muttered Fleck, "a mighty dangerous man."
+
+
+
+CHAPTER XV
+
+THE HOUSE IN THE WOODS
+
+At last they had reached their goal, the place which the two spy
+suspects undoubtedly had been in the habit of visiting regularly every
+week for months past.
+
+Sheltered by a great rock and the underbrush about it, Jane, with Fleck
+and Thomas Dean, peered eagerly out at a dingy, weather-beaten frame
+structure which neighborhood gossip had told them was the sheltering
+place of the "Friends of the Air." In its outward appearance at least,
+Jane decided, it was disappointingly unmysterious. It looked to her
+merely like a cheap summer boarding-house that had gone long untenanted.
+There was a two-story main building, cheaply constructed and almost
+without ornament, sadly crying for new paint, and the usual outbuildings
+found about such places in the more remote country districts.
+
+Still from Chief Fleck's manner she was certain that he regarded their
+achievement in locating the place as of the highest importance. They had
+run their two automobiles noiselessly up the lane leading from the main
+road until they were perhaps half a mile distant from the house and then
+had concealed them in the woods near-by, being careful to obliterate all
+traces of the wheel tracks where they had left the lane. Making a detour
+among the trees they had reached their present position not more than
+three hundred yards away from the buildings. They had carried the rifles
+with them, and these now were close at hand, hidden under the log on
+which the three of them were sitting. Carter, with the other men, under
+Fleck's orders, had divided themselves into scouting parties and had
+crept away through the woods to study their surroundings at still closer
+range while the waning afternoon light permitted.
+
+At first glance one might have been inclined to believe the buildings
+untenanted. There seemed to be no one stirring about the place, and some
+of the unshuttered windows on the second floor were broken. The only
+indications of recent occupation were a pile of kegs at the rear of the
+house and near-by a heap of freshly opened tin cans. Near one of the
+larger outbuildings, too, was a pile of chips and sawdust.
+
+"There does not seem to be any one about," whispered Jane. "What do you
+suppose they do here?"
+
+"I can't imagine yet," said Fleck with an impatient shake of his head.
+"The fact that this house is important enough for the Hoffs to visit
+once a week makes it important for us to cautiously and carefully
+investigate everything about it. It may be a secret wireless plant away
+off here in the woods where no one would think of looking for it. It
+might be a bomb factory where their chemists manufacture the bombs and
+explosives with which they are constantly trying to wreck our munition
+plants and communication lines. Perhaps it is just a rendezvous where
+their various agents, the important ones engaged in their damnable work
+of destruction, come secretly to get their orders from the Hoffs and to
+receive payment for their hellishness accomplished."
+
+"It's all so funny, so perfectly absurd," said Jane with a nervous
+little laugh.
+
+"Absurd," cried Fleck indignantly, "what do you mean? It's frightfully
+serious."
+
+"Of course, I understand," Jane hastened to say. "I was just thinking,
+though, how funny we are here in America, especially in the big cities.
+We know nothing whatever about our neighbors, about the people right
+next door to us. In one apartment we'll be doing all we can to help win
+the war, and in the apartment next door the people will be plotting and
+scheming to help Germany win, and it is only by accident we find out
+about it. Take my own father and mother. They haven't the slightest
+suspicion of the people next door. They would hardly believe me if I
+told them the Hoffs were German spies. They see them every day in the
+elevator. Young Mr. Hoff has been in our apartment several times. My
+mother has met him and talked with him. I was just thinking how amazed
+and horrified she will be when she hears about it and learns what I have
+been doing."
+
+"You are perfectly right," said Fleck soberly. "We are entirely too
+careless here in America about our acquaintances and neighbors. We know
+that we are decent and respectable, and we're apt to take it for
+granted that everybody else is. We don't mind our neighbors' business
+enough. Nobody in a New York apartment house ever bothers to know who
+his neighbors are or what their business is, so long as they present a
+respectable appearance. I know New York people who live on the same
+floor with two ex-convicts and have lived there for three years without
+suspecting it. We should have here in America some system of
+registration as they have in Germany. Tenants and travelers ought to be
+required to file reports with the police, giving their occupation and
+other details. If that plan were in use here enemy spies would lack most
+of the opportunities we have been giving them."
+
+"Yes," said Dean, "you are right. I've lived in Germany. Over there a
+crook of any sort can hardly move without the police knowing it. Their
+system certainly has its good points."
+
+"It surely has," Fleck agreed. "If the Prussians' character were only
+equal to their intelligence they would be the most wonderful people in
+the world, but they are rotten clear through. They have no conception
+of honor as we understand it. Only the other day I read of a Prussian
+officer who led his men in an attack on a chateau, guiding them by plans
+of the place he had made himself while being entertained in the chateau
+as a guest before the war."
+
+"Don't you think any of them have a sense of honor?" asked Jane in a
+troubled tone.
+
+Her mind had reverted, as she found it frequently doing, to Frederic
+Hoff and the sealed packet he had entrusted to her. He had professed to
+love her and had demanded that she trust him. Was it, she wondered, all
+a base pretense on his part? Was he--for Germany's sake--taking
+advantage of her affection for him to make her the unwitting custodian
+of some secret too perilous for him to carry about with him? Perhaps
+that little parcel she was carrying in the bosom of her gown contained
+the code he and his uncle used? Had it not been for Dean's presence she
+might have been tempted to take Fleck into her confidence and tell him
+of the peculiar incident, though in spite of all she knew about him she
+felt that Frederic Hoff's feeling for her was real, and that toward her
+he always would show only respect and honor, as he always had done
+hitherto; and yet--
+
+Before the chief had time to answer her question Dean with a whispered
+"hist" pointed to a path in the rear of the buildings they were
+watching. Behind the house two rugged hills, their sides of precipitous
+rock so steep that they hardly afforded a foothold, came down close
+together, making a V-shaped cleft through which a narrow path ran in the
+direction of the river. Looking toward this cleft to which Dean was
+pointing they now saw a group of workmen approaching the house.
+
+All of them were in the garb of mechanics, yet as they approached in
+single file down the path, the quick eye of the chief noted that they
+were keeping step.
+
+"They've all of them seen service," he muttered to himself, "either in
+prison or in the German army."
+
+Some of them carried kits of tools, and they walked with the air of
+fatigue that results from a day of hard physical work. They seemed to
+have no suspicion as yet that they were under observation, for as they
+walked they chatted among themselves, the sound of their German
+gutturals reaching the watchers, but unfortunately not distinctly enough
+to be audible. Dean was busy counting them.
+
+"There are fourteen," he announced, "two more than we were expecting to
+find here."
+
+"At what do you suppose they are working?" asked Jane curiously.
+
+"Here comes Carter," replied Fleck. "Perhaps he can tell us. His face
+shows that he has learned something."
+
+Carter, crawling rapidly but silently through the underbrush, approached
+breathlessly, his sweaty, begrimed countenance ablaze with excitement.
+
+"What's up?" asked Fleck, as soon as he was within hearing.
+
+"My God, Chief," he gasped, "they've got three big aeroplanes out there
+on a plateau overlooking the river--three of them all keyed up and ready
+to start."
+
+"Friends of the Air," muttered Fleck; "so that's what it means."
+
+"They've evidently smuggled all the material up and built the three
+planes right here," Carter went on. "I watched them putting on the
+finishing touches and testing the guy-wires. There is a machine shop,
+too, rigged up in one of those outbuildings. The thing that gets me is
+how they got the engines here. All the planes are equipped with powerful
+new engines."
+
+"If there are traitors in the army and navy, why not in the aeroplane
+factories, too?" suggested Fleck. "A spy in the shipping department
+could easily change the label on even a Liberty motor intended for one
+of Uncle Sam's flying fields. Even when it didn't turn up where and when
+it was expected, it would take government red tape three months to find
+out what had become of the missing motors."
+
+"These machines"--said Jane suddenly, "they must be the 'wonder-workers'
+old Mr. Hoff was always talking about."
+
+"And that last advertisement we read," Dean reminded them, "announced
+that the wonder-workers would be ready Friday. It looks as if we got
+here not a minute too soon."
+
+"You bet we didn't," said Carter. "Every one of those three planes is
+fairly loaded down with big bombs, scores of them."
+
+"To bomb New York," said Fleck soberly; "that's their plan. Zeppelins
+for England, big guns to shell Paris, bombs from the air for New York.
+It's part of their campaign to spread frightfulness, to terrorize the
+world. Undoubtedly that is the reason Berlin sent Frederic Hoff over
+here, to superintend the destruction of the metropolis. There have been
+whispers for months and months that the city some day was to be bombed,
+but we never were able to discover their origin."
+
+"And not a single anti-aircraft gun or anything in the whole city to
+stop them, is there?" cried Jane. "Wouldn't it be terrible?"
+
+Fleck smiled grimly.
+
+"Any foolhardy German who tries to bomb New York from the air has a big
+surprise coming to him--a lot of big surprises. The war department may
+not have been doing much advertising, but it has not been idle."
+
+"Then we have some anti-aircraft guns!" cried Jane delightedly. "I never
+heard anything about them."
+
+"That would be telling government secrets," said Fleck, smiling
+mysteriously, "but I'd just like to see them try it. I have sort of a
+notion to let them start their bombing."
+
+"Oh, no, we mustn't," Jane insisted. "We mustn't let those aeroplanes
+ever start. Can't we do something right away to cripple them?"
+
+"There's plenty of time," the chief assured her. "It is best for us to
+wait until after dark. The early morning would be ideal time for an
+aerial attack on the city, when everybody is helpless and asleep.
+There's generally a fog over the river and harbor, too, before sunrise
+at this season of the year, and that might help them to mask their
+movements. It would take an aeroplane less than an hour to reach the
+city from here, so that there is no likelihood of their starting until
+long after midnight. That gives us plenty of time, and besides we must
+wait until the Hoffs arrive."
+
+"That will make two more--sixteen of them against our nine," warned
+Dean.
+
+"We cannot help it how many of them there are," said Fleck. "It is of
+vital importance for us to know just what their plans are. It is
+unlikely that they will post guards to-night in this secluded spot,
+where they have been at work in safety for months. As soon as it is
+dark we can smash the aeroplanes."
+
+"That will be easy," said Carter. "I know something about aeroplanes.
+Cut a couple of wires, and they are out of business. Sills, one of my
+men, is posted on bombs, and he'll know just how to fix the fuses to
+render them useless."
+
+"What's more," said Fleck, "if I understand German thoroughness, they
+will go over their final plans in detail to make sure that everything is
+understood. The darkness will let us slip up closer to the house, and we
+may be able to overhear what they say. Don't forget, too, that our main
+job is to catch the Hoffs red-handed."
+
+"That's right," said Dean. "They are the brains of the plot. These other
+fellows are just workmen taking orders."
+
+"I'm puzzled," said Fleck, "to know what they plan to do with the
+aeroplanes after the bombing has taken place. There is not one chance in
+a thousand of their being able to return here in safety without
+discovery. It will be sure death for the aviators that take up those
+machines."
+
+"Sure death!"
+
+With a shudder Jane recalled what Frederic had said to her only a few
+hours ago as they parted--that he was going away and might never return.
+Was this what he had meant? Was he, Frederic, to be one of the foolhardy
+three who proposed to forfeit their lives in this desperate attempt to
+deal destruction from the air on a sleeping city, to wreck innocent
+homes, to cripple and maim and destroy helpless babies and women? She
+could not, would not believe it of him. That he had the courage and
+daring to undertake such a perilous task she did not doubt. She
+realized, too, that the controlling motive of all his actions was his
+high sense of duty toward his country, and yet in spite of all that she
+had learned about the plots in which she was enmeshed, her heart refused
+to believe that he ever could bring himself to participate in such
+wanton frightfulness. She recalled the spirit of mercy that he had shown
+toward herself and Thomas Dean after the accident as contrasted with the
+brutal indifference of his uncle. She kept hoping against hope that
+something might happen to prevent his arriving here. Devoutly she wished
+that she might awake and find that it was all a terrible mistake, a
+hideous unreality, and that the "Friends of the Air" were not in any way
+associated with the Hoffs.
+
+Yet her reason told her it must all be true, terribly, infamously true,
+and that he was one of them, perhaps the leader of them.
+
+One by one the members of the various scouting parties had come creeping
+in through the forest. All of them verified what Carter had already
+reported. One man, more venturesome than the others, had even dared to
+creep close up to the rear of the house and had seen through the window
+the workmen, gathered about their supper of beer and sausages, toasting
+the Kaiser with the unanimity of a set formality.
+
+As the light waned, secured from observation by the undergrowth between
+their position and the house, they sat there discussing plans of action,
+selecting while the light still permitted the most advantageous posts
+from which they could make a concerted rush on the plotters. Fleck was
+insistent that they should do nothing to betray their presence until
+after the Hoffs had arrived, and Dean once more voiced his protest
+against Jane taking part in the attack. "I will be of far more use than
+you with your crippled arm," she resentfully insisted. "I can handle a
+revolver as well as any man, and a rifle, too, if necessary."
+
+"Dean is right," Fleck decided. "It is no work for a woman. Here is an
+automatic, Miss Strong. You will stay here until after we have rounded
+them up. If we get the worst of it, which is not likely to happen, make
+your way to the automobile and telephone the commandant at West Point."
+
+Reluctantly Jane assented. She realized that further protest was
+useless. Fleck was in command, and his orders must be obeyed
+unquestioningly if their plans for the capture of the plotters were to
+be successfully carried out.
+
+Presently they heard in the distance the sound of an automobile
+approaching, and soon they could distinguish its lights as it negotiated
+the rough, winding woodland road that led to the house. A toot from the
+horn as it arrived brought the men within the house tumbling out the
+front door with huzzas of greeting for their leaders, and Fleck observed
+that all the men as they came out automatically raised their hands
+in salute.
+
+"Ex-German soldiers, every one of them," he muttered.
+
+As the Hoffs got out of the car a shaft of light from the opened front
+door threw the figures of the new arrivals into sharp relief, and Jane
+saw, with a shudder of terror, that Frederic was dressed in an aviator's
+costume. There was no longer any doubt left in her mind that he was one
+of those going to certain death, and a dry sob choked her.
+
+The Hoffs passed within the house, and the door was closed.
+
+"Now," cried Fleck, "to your stations, men. Each of you take a rifle.
+You stay here, Miss Strong. Come on, Carter."
+
+
+
+CHAPTER XVI
+
+THE ATTACK ON THE HOUSE
+
+In accordance with instructions already issued two of Fleck's men rushed
+for the front of the house, where with rifles ready they stood guard,
+while the others took cover in the shadow of one of the outbuildings a
+few feet distant from the rear entrance.
+
+Apparently the plotters had been so long undisturbed in their mountain
+fastness that they had ceased to take even the most ordinary precautions
+against surprise. So far as could be discovered they had posted no
+guards over the aeroplanes and their deadly cargo, nor at either of the
+two doors to the main building. Nevertheless Fleck, as he crept
+stealthily up to the building with Carter at his side, took out his
+automatic and held it in readiness, and Carter followed his example.
+
+There was no moon to reveal their movements as they approached the rear
+of the house. The evening was warm, and one of the windows had been left
+open. Noiselessly they crept up to it and looked within. It opened into
+a large room used as a dining hall, where they could see all of the men
+clustered about one of the tables, at the head of which sat old Otto
+Hoff with Frederic at his side. On the table before him was what
+appeared to be a rough map or blueprint. Frederic and five of the other
+men, Fleck observed, now wore aviation costumes.
+
+"Comrades," old Otto was saying in German, "here is the course. You will
+have no difficulty in following it. Down the river straight till you see
+the lights of New York. You each understand what you are then to
+do, yes?"
+
+"Certainly," three of the men, the pilots evidently, responded.
+
+"Let us, to make sure," old Otto insisted, "once more rehearse it. Much
+there is at stake for the Fatherland. You, Anton and Fritz, will blow up
+the transports and the warships that guard them. Six great transports
+are lying there, ready to sail at daylight The troops went aboard
+to-night. We waited until it was signalled that it was so. You must not
+fail. The biggest of those transports once belonged to Germany. You must
+teach these boastful Americans their lesson. That one boat you must
+destroy for certain. Beside the transports to-night lie five vessels of
+war, two battleships, three cruisers. Them you must destroy also, if
+there is time. To each transport, two bombs, to each warship, two
+bombs--twenty you carry. If all goes well, two you will have left. With
+these do what you will, a house, a church, it matters not--anything to
+spread the terror of Germany in the hearts of these money-grabbing
+Americans."
+
+"It will be done," said Anton solemnly.
+
+"I have thrown bombs before. You can trust me," said Fritz.
+
+"You, Hans and Albert," old Otto went on, "will fly over the city at
+good height. When you reach the end of the island you turn to the left,
+so, and come down close that your aim may not miss. Here will be the
+Brooklyn Navy Yard,"--he indicated a place on the map. "If there is fog
+the bridges will locate it for you. Smash the ship lying there, the
+shops, the dry docks; if it is possible blow up the munitions
+stored there."
+
+"I know the place well," Hans replied. "I worked there many months. I
+can find my way in the dark. It will be done."
+
+"And to you, Herr Captain," said Otto, turning to Frederic and saluting,
+"to you, whom the War Office itself sent here to oversee this
+all-wonderful plan of mine which it has seen fit to approve, to you and
+your mate falls the greatest honor and glory. You--"
+
+A suppressed sob at his side caused Fleck to turn quickly and lay his
+finger on the trigger of his revolver. There, close beside him,
+listening to all that had been said, was Jane. Left alone in the
+darkness she had found it impossible to obey the chief's orders and
+remain where she was. Every little sound about her had carried new
+terrors to her heart. Hitherto she had not felt afraid, but the solitude
+filled her mind with wild imaginings. She was seized, too, by an
+irresistible desire to know what part Frederic was playing in this drama
+of the dark. Was his life in peril? Were Fleck and Carter now gathering
+evidence that would bring about his conviction, perhaps his shameful
+death? She must know what was happening. Quietly she had stolen up to
+peer through the window.
+
+Fleck, as he recognized her, with an angry gesture of warning to be
+silent, turned back to hear what Otto was saying.
+
+"--you, Frederic, have the glory of leading the expedition, of bombing
+that damned Wall Street which alone has kept Germany from winning her
+well-deserved victory. You will destroy their foolish skyscrapers, their
+banks, their business buildings. Your work will end this way. You will
+strike terror into the cowardly hearts of these American bankers whose
+greed for money has led them to interfere with our great nation's
+rightful ambition. You shall show them that their ocean is no
+protection, that the iron hand of our Kaiser is far-reaching. Do your
+work well, and they will be on their knees begging us for peace."
+
+"God helping me," said Frederic, "I will not fail in my duty to my
+country."
+
+There was something magnificent in his manner as he spoke, something
+almost regal, and Fleck regarded him with a puzzled air. Who was he,
+this man who had been sent out from Germany on this mission--this man to
+whom even old Otto paid deference? Despite the assurance with which he
+had spoken Fleck had observed in Frederic an uneasiness, a watchfulness,
+that none of the others seemed to exhibit. He had the appearance of
+alertly listening, listening, for what? Fleck's first thought was that
+he might have overheard the little cry that Jane had inadvertently
+given, but he quickly dismissed this theory. If Frederic had heard that
+sound it would have alarmed him, and the look in his eyes now was one of
+expectancy rather than of fear.
+
+Jane, too, was puzzled and distressed. With trembling hands she clutched
+at the sill of the window for support as she heard Frederic assent to
+old Otto's plans for him. Her estimate of his character made it seem
+incredible that he would willingly lend himself to this work of
+wholesale murder, yet she could no longer doubt the evidence of her own
+ears. With overwhelming force it came to her that this man who so
+readily agreed to such bloody, dastardly work as this, must undoubtedly
+be also the murderer of that K-19 whose body had been found just around
+the corner from her home. Bitterly she reproached herself that she had
+allowed herself to care for him. Shamedly she confessed to herself that
+she still loved him--even now.
+
+"Your great work accomplished," Otto continued, "remember your orders.
+Forty miles due east of Sandy Hook there will be lying two great
+submarines, waiting to take you off--not U-boats, but two of our
+powerful, wonderful new X-boats, big enough to destroy any of their
+little cruisers that are patrolling the coast, fast enough to escape any
+of their torpedo boats. How important the war office judges your work
+you may realize from this--it is the first mission on which these new
+X-boats have been dispatched. They are out there now. We have had a
+wireless from them. They are waiting to convey six heroes back to the
+Fatherland, where the highest honors will be bestowed on them at the
+hands of our Emperor himself. Herr Captain and Comrades--"
+
+He stopped abruptly, and there came into his face a pained look of
+surprise, of terror.
+
+_"Was is dass?_" he cried in alarm.
+
+One of Fleck's men in hiding out there in the shadow of the building
+had been seized by an irresistible desire to sneeze.
+
+The terrifying suspicion that there had been some uninvited spectator
+outside, listening to their plotting, swept over the whole room. The
+whole company, hearing the sound that had alarmed old Hoff, arose as one
+man and stood tensed, stupefied with fear, gazing white-faced in the
+direction from which the sound had come.
+
+Fleck, rudely brushing Jane aside, dropped back from the window and blew
+a sharp blast with a whistle. At the sound his men came running up with
+their rifles ready.
+
+Inside, the man called Hans, seizing an electric torch, dashed to the
+door, and pulling it wide, rushed forth, his torch lighting the way
+before him. Before he even had time to see the men gathering there and
+cry an alarm, a blow from the butt of Carter's revolver stretched him
+senseless on the stoop.
+
+"In the name of the United States I command you to surrender," cried
+Fleck, springing boldly into the open doorway, revolver in hand; "the
+house is surrounded."
+
+Instantly all within the room was confusion. Some of those nearest the
+door, seeing behind Fleck the protruding muzzles of the guns, promptly
+threw up their hands in token of surrender. Others bolted madly for the
+front door, only to find their egress there blocked by the rifles in the
+hands of the guard that Fleck had had the foresight to station there.
+
+Old Otto, the pallor of fear on his face giving away to an expression of
+demoniac rage, drew a revolver and aimed it straight at Fleck. Jane, who
+unbidden had followed the raiders as they entered and now was standing
+wide-eyed in the doorway watching the spectacle, was the only one to see
+that just as old Otto pulled the trigger his nephew, whether by accident
+or design, she could not tell, jostled his arm, sending the bullet wide
+of its mark.
+
+"Come on, men," cried Fleck, advancing boldly into the room.
+
+Eight of the Germans, piteously bleating "Kamerad" stood against the
+wall near the door, their hands stretched high above their heads.
+
+"Guard these men, Dean," cried Fleck, as with Carter close at his side
+he dashed into the fray.
+
+One man already lay senseless outside, eight had surrendered. Four had
+fled to the front of the house. That left only the two Hoffs and one
+other man against five of them. It was Fleck's intention to try to
+overpower the trio before the four who had fled returned to aid them.
+Jane, amazed at her own coolness, stood beside Dean, her revolver out,
+helping him guard the prisoners.
+
+Frederic all the while had been standing by his uncle's side, strangely
+enough appearing to take little interest or part in the battle. Old
+Otto, though, despite his years, was fighting with vigor enough to
+require both the work of Fleck and Carter to subdue him. Vainly he
+struggled to wrench himself free from their grasp and use his revolver
+again. Fleck's strength pulling loose his fingers from the weapon was
+too much for him. As he felt himself being disarmed, in a frenzy he tore
+himself loose from both of them and seizing a chair, swung it with all
+his strength against the hanging lamp above the table that supplied the
+only light in the room.
+
+In an instant the room was in darkness. The four from the front, rushing
+back to aid their comrades in answer to old Otto's cries, found
+themselves unable to distinguish friend from foe. Fleck's men dared not
+use their weapons in the darkness. Back and forth through the room the
+opposing forces struggled, the air thick with cries and muttered oaths,
+the sound of blows making strange medley with the rapid shuffling
+of feet.
+
+Jane, remembering the electric torch that had been carried by the man
+Carter had struck down, felt her way to the door and retrieved it from
+his senseless fingers. Returning, she flashed it about the room,
+endeavoring to assist Fleck by its light. As she let the beam fall on
+Frederic she heard a muttered curse at her side and turned to see Thomas
+Dean aiming his revolver directly at the younger Hoff. With a quick
+movement she thrust up his arm, and the bullet buried itself in the wall
+above his head.
+
+"What are you trying to do," snapped Dean; "help that damned spy to
+escape?"
+
+"He wasn't trying to escape," she angrily retorted. "Look--quick--mind
+your prisoners."
+
+He turned just in time to see the Germans behind him lowering their
+arms. In another second they would have been on his back. At the sight
+of his brandished revolver, their arms were quickly raised again.
+
+Meanwhile Fleck's men, guided by Jane's light, were laying about them
+with their rifles clubbed. The plotters were at a disadvantage in not
+realizing how few there were in the attacking party. Fleck's
+announcement that the house was surrounded had both deceived and
+disheartened them. When three of their number had been knocked senseless
+to the floor the others surrendered and joined the group that stood
+with hands up.
+
+To Fleck's amazement it was Frederic Hoff who led in the surrender.
+
+"Watch that young Hoff," he whispered to Carter. "I can't understand his
+giving up so easily. It may be only a ruse on his part."
+
+"Perhaps he's afraid the girl will be hurt," whispered Carter, but Fleck
+was not there to hear him, having dashed forward to where old Otto was
+still fighting desperately.
+
+Somehow in the melee the old man had again got hold of a revolver, and
+just as Fleck seized him he fired again. The bullet, aimed at Fleck,
+left him unharmed, but found a mark in Thomas Dean, who with a little
+gurgling cry, fell forward at Jane's feet. Carter turned at once to
+guard the prisoners, as Fleck, with a cry of rage, felled old Hoff to
+the floor, harmless for the present at least.
+
+Sending one of his men to the other rooms in search of lamps Fleck soon
+had all the prisoners safely shackled, both hand and foot, none of them
+offering any resistance. Investigation showed that old Hoff in falling
+had struck his head in such a way that his neck was broken, killing him
+instantly. The three who had been clubbed were not seriously injured,
+and as soon as they revived were shackled as the others had been.
+
+Jane, seeing Dean collapse, had turned to aid him and for some time had
+been bending over him, trying to revive him. He had opened his eyes,
+looked up into her face and had tried to say something, and then had
+collapsed, dying right before her eyes.
+
+"Take the Hoffs' car outside," Fleck directed some of his men, "and
+bring up our two cars at once. Carter and I'll guard the prisoners until
+you get back. There's a county jail only a few miles away. The sooner we
+get them there the better it will be. It won't take any court long to
+settle their fate. They got Dean, didn't they?"
+
+"Yes," said Jane, getting up unsteadily from the floor, "I think he's
+dead."
+
+Fleck bent to examine the body of his aide, feeling for the pulse.
+
+"Too bad," he murmured. "That last bullet of old Hoff's got him, but he
+died in a good cause."
+
+Jane, brushing away the tears that came welling unbidden into her eyes,
+turned now for the first time since his surrender to look at Frederic.
+
+She had expected as she looked at him lying there shackled on the floor
+to read in his expression humiliation at his plight, grief at the
+failure of his effort to aid Germany, possibly reproach for her in
+having aided in entrapping him. To her amazement there was nothing of
+this in his face.
+
+As he lay there on the floor he was observing her with a tender look of
+love, and in his eyes what was still more puzzling was an unmistakable
+expression of triumph and happiness.
+
+
+
+CHAPTER XVII
+
+SOMETHING UNEXPECTED
+
+Bewildered by the rapidity with which such a succession of terrifying
+events had taken place, Jane sank dazedly into a chair, trying her best
+to collect her thoughts, as she looked about on the recent scene of
+battle. All of the German plotters had been overcome and captured.
+There, dead on the floor, lay the arch conspirator, old Otto Hoff, his
+clammy face still twisted into a savage expression of malignant,
+defiant hate.
+
+And there, too, a martyr to the country's cause, lay Thomas Dean. A sob
+of pity rose in Jane's throat as she thought of him, and the great tears
+rolled unchecked down her cheeks. He was so young, so brave, so fine.
+Why must Death have come to him when there was yet so much he might have
+done? With his talent and education, with his wonderful spirit of
+self-sacrifice, he might have gone far and high. Regretfully, she
+recalled that he had loved her, and with kind pity in her heart she
+reproached herself for not having been able to return to this fine,
+clean, American youth the affection she had inspired in him.
+
+Thomas Dean, she told herself, was the type of man she should have
+loved, a man of her own people, with her own ideals, a man of her
+country, her flag, and yet--
+
+There on the floor, not a dozen feet away from her, shameful circlets of
+steel girdling both his wrists and his ankles, lay the one man for whom
+she knew now she cared the most in all the world, the man she had just
+betrayed into Chief Fleck's hands.
+
+Bitterly she reproached herself for not having tried to induce Frederic
+to escape. In mental anguish she pictured him--the man she
+loved--standing in the prisoner's dock in some courtroom, branded as a
+spy, as a leader of spies, charged with an attempt to slaughter the
+inhabitants--the women and children--of a sleeping, unprotected city.
+With growing horror it came to her that in all probability she herself
+would be called on to testify against him. It might even be her
+evidence that would result in his being led out before a firing squad
+and put to an ignominious death.
+
+She dared not even look in his direction now. What must he be thinking
+about her? He had known that she loved him. In despair and doubt she
+wondered whether he could understand that she, too, had been influenced
+to perform her soul-wracking task by a sense of honor, of duty to her
+country equally as potent as that which had impelled him to participate
+in this terrible plan to destroy New York. Why had she not informed him
+that his plans were known to the United States Government's agents?
+Surely she could have convinced him that his was a hopeless mission. The
+plot would have been successfully thwarted, and he would not be lying
+there in shackles, but, even though forced to flee, who knew, perhaps
+some day after peace had come, he might have been able to return for
+her. A great sob rose from her heart, but she stifled it back. She would
+be brave and true. She must be glad for those of her people that had
+been saved.
+
+But her parents! What would they say? Her father and mother soon now
+must learn that she had been deceiving them day after day. How horrified
+and amazed they would be to learn that the chauffeur she had brought
+into the household was in reality a government detective, and that she,
+their daughter, had been a witness of his tragic death. What would they
+think when they learned about her part in this gruesome drama that had
+just been enacted? They, serene in their trust in her, supposing she was
+at the home of one of her girl friends, were peacefully asleep in their
+quiet apartment. How horror-stricken her mother would be if she could
+have seen her daughter at this moment, alone at midnight in a mountain
+shack, one girl among a band of strange men--and two men stretched dead
+on the floor.
+
+And Frederic! Always her perturbed imaginings led back to Frederic, to
+the terrible fate that lay in store for him, to the awfulness of war
+that had put between them an impassable gulf of blood and guilt and
+treachery that, in spite of their love for each other, kept them at
+cross purposes and made them enemies. Why, she vaguely wondered, must
+governments disagree and start wars and make men hate and kill each
+other? What was it all for?
+
+In the midst of her mental wanderings she became conscious that Fleck
+was speaking to Carter.
+
+"I'll stay here with Miss Strong and the prisoners," he was saying.
+"While we are waiting for the men to return with the cars, you'd better
+make a search of the house."
+
+"Why not wait until daylight for that?" suggested Carter.
+
+"It is not safe," the chief objected. "To-night is the time to do it. A
+plot important enough to have the especial attention of the war office
+in Berlin must have many important persons involved in it. Somebody with
+money in New York, some influential German sympathizer, must have helped
+old Hoff set up these aeroplanes here and equip his shop. Some chemical
+plant supplied the material for those bombs. It must have taken hundreds
+of thousands of dollars to carry the plan to completion. Men rich enough
+and powerful enough to have put through this plot are powerful enough to
+be still dangerous. The minute word reaches the city that the plan has
+miscarried there will be some one up here posthaste to destroy or remove
+any damaging evidence we may have overlooked. Now is the time to do our
+searching."
+
+"You're right, Chief," Carter admitted. "It would not surprise me if
+there is not a wireless plant here. I'll soon find out."
+
+"Let me help," cried Jane.
+
+Her nerves were suffering from a sharp reaction. All through the
+excitement of the attack she had remained calm and collected, but now
+she felt that if she remained another minute in the same room with the
+two bodies, if she stayed near that row of shackled prisoners, if she
+should chance to catch Frederic's eye, she either would burst into
+hysterical weeping or would collapse entirely. If only there was some
+activity in which she could engage it might serve to divert the current
+of maddening thoughts that kept overwhelming her. With something to do
+she might regain her self-control.
+
+"Please let me help Mr. Carter," she begged.
+
+"Certainly," said Fleck, "go ahead. You have earned the right to do
+anything you wish to-night."
+
+Guided by the light of an electric torch Carter and she quickly made
+their way to the upper floor. In most of the rooms they found only cheap
+cots with blankets, evidently the sleeping quarters of the workmen, but
+in one of the rooms was a desk, and from it a ladder led to an
+unfinished attic. Boldly climbing the ladder and flashing their torch
+about they quickly located a high-powered wireless outfit. It was
+mounted on a sliding shelf by which it could be quickly concealed in a
+secret cupboard, but evidently the plotters had felt so secure from
+intrusion in their retreat that they had been in the habit of leaving
+it exposed.
+
+"I thought we'd find it," said Carter exultantly. "It's an ideal
+location, up here in the mountains. I'd better smash it at once."
+
+"Wait," warned Jane, thoughtfully, "they spoke of having received a
+wireless message from those dreadful X-boats lying there off the coast.
+If we could only find their code-book, perhaps--"
+
+"Right," cried Carter, catching her idea at once.
+
+Together they descended to the room below and began ransacking the
+desk, Jane holding the light while Carter examined the papers
+they found.
+
+"Their system sometimes is bad for them," said Carter. "Here's a ledger
+with the names of all the men employed here and the amounts paid to
+each. And look," he went on excitedly, "look what the stupid fools have
+done with their German methodicalness--here are entries showing all the
+supplies they obtained, from whom they got them and what they cost.
+There's evidence here for a hundred convictions. We'll just take that
+book along."
+
+There was one small drawer in the desk that was locked. Ruthlessly
+Carter smashed the woodwork and pried it open. Its only contents was a
+small parcel, a folded paper in a parchment envelope. Hastily he drew
+forth the paper and studied it intently.
+
+"It's a code," he cried, "a naval code, evidently the very one they used
+to communicate with those boats. I'll wager the Washington people even
+haven't a copy of it. That's a great find. Come on, we've got enough for
+one night."
+
+"Do any of the men in our party understand wireless?" asked Jane as
+they descended.
+
+"Sure," said Carter, "Sills does. He used to be the radio man on a
+battleship."
+
+"Couldn't he be left on watch here?" suggested Jane, "and try to signal
+those X-boats and keep them waiting until to-morrow night? Maybe by that
+time our--"
+
+"I get you," cried Carter; "that's a good idea. Explain it to the
+Chief."
+
+As Jane unfolded her plan, suggesting the possibility of sending
+American cruisers out to search for the X-boats after Sills had lured
+them by false messages to the surface, Fleck heartily approved of it.
+
+"I'll leave Sills here with one other man to guard the house," he said.
+"We'll have to let poor Dean's body remain here for the present, too.
+We'll need all the room in the cars for the prisoners."
+
+There was still much to be done. While some of the men were
+unceremoniously carrying out the shackled prisoners and piling them in
+the cars, others, under Carter's direction, crippled the three
+"wonder-workers" and dismantled them, carrying their dangerous cargo of
+bombs into the woods and concealing them.
+
+None of the prisoners, since the moment the shackles had been put on,
+had uttered a word. Sullen silence held all of them unprotestingly in
+its grip. Even Frederic kept his peace, though from time to time his
+glance roved about, seeking Jane, and always in his eyes was a strange
+look, not of defeat, nor of shame, but rather of exultant triumph. Jane
+still dared not trust herself to look in his direction, but Fleck and
+Carter, too, observed curiously the expression in his eyes. Was he, they
+wondered, rejoicing over Dean's untimely end? Did he, with true Prussian
+arrogance, in spite of the failure of his plot, still dare to hope that
+with Dean out of the way, he might escape punishment and yet win Jane
+Strong? Even as they picked him up, the last of the prisoners, and put
+him in the rear seat of the chief's car, his eyes still sought for Jane.
+
+It was long after midnight before the strange cavalcade left the
+mountain shack. Fleck's car led the way, with the chief himself at the
+wheel, and Jane beside him. Crowded on the rear seat were Frederic and
+two other prisoners, and standing in the tonneau, facing them with his
+revolver drawn in case they should make an attempt to escape in spite of
+their shackles, was Fleck's chauffeur. Carter was at the wheel of the
+second car with five prisoners and a man on guard, and the arrangement
+in the third car was the same. Six men and a girl to transport thirteen
+prisoners! Inwardly Fleck was congratulating himself on his forethought
+in having provided shackles enough to go around, for otherwise he surely
+would have had a perilous job on his hands.
+
+As they rode down the mountain lane, Jane rejoiced at the darkness that
+hid her face, both from Fleck and from Frederic on the seat behind. Now
+that there was no activity to distract her maddening thoughts once more
+paced in turmoil through her brain. She loved this man, and she was
+leading him to disgrace and death. She hated and despised him. He was a
+treacherous, dangerous enemy of her country whom she had helped to trap,
+and she was glad, glad, glad. No, no! She wasn't glad. She loved him. He
+had given her that sealed packet and had charged her to keep it for
+him. He couldn't be all bad. Why must she love him? Her mind told her he
+was a criminal, an enemy, a spy, a murderer, yet her wilful heart
+insisted that she loved him. How strange life was! She and Frederic
+loved each other. Why could they not marry and be happy? Why was War?
+Why must nations fight? Why must people hate each other? Was the whole
+world mad? Was she going mad herself?
+
+Slowly and carefully, Fleck, with his lights on full, had steered the
+automobile down the narrow roadway through the woods. He had just turned
+the car safely into the main road, and stopped to look back to see how
+closely the other cars were following. Suddenly from the wayside a dozen
+men in uniform sprang up, the glint of their guns made visible by the
+automobile lights.
+
+"Halt," cried a voice of authority.
+
+The one glimpse he had caught of the uniform had conveyed to Fleck the
+welcome fact that the party surrounding him were Americans--cavalry
+troopers.
+
+"Chief Fleck," he announced, by way of identification. "Who are you?"
+
+A tall figure in officer's clothes sprang up on the running board and
+peered into Fleck's face.
+
+"Thank God, Chief," he said, "that it's you."
+
+"Colonel Brook-White," cried Fleck in amazement, recognizing the voice
+as that of one of the officers in charge of the British Government's
+Intelligence Service in America. "What are you doing here?"
+
+"Trying to round up some bally German spies," explained Brook-White.
+
+"I've beaten you to it," cried Fleck, with a note of triumph in his
+tone. "I've got them all here in shackles."
+
+"Good," said Brook-White delightedly. "I was fearful I'd be too late.
+There was delay in getting a message to me. As soon as I had it, I tried
+to reach you and couldn't. I dared not wait but dashed up here in my
+car. I knew there were some American troopers camped near here, and I
+persuaded the commander to detail some of his men to help me. Did you
+really capture the Hoff chap, old Otto?"
+
+"He's better than captured," said Fleck. "He's lying dead back there in
+the house."
+
+"Good," cried Brook-White. "He was infernally dangerous according to my
+advices--but Captain Seymour--where is he? Wasn't he working with you?"
+
+"Captain Seymour?" cried Fleck in astonishment. "I never heard of him.
+Who's Captain Seymour?"
+
+"He's one of my chaps," explained Brook-White. "Wasn't it he who steered
+you up here?"
+
+"I should say not," said Fleck emphatically.
+
+"Good Lord," cried the British colonel excitedly. "You don't suppose
+those bloody Boches got him at the last--after all he's been through? I
+hope he's safe."
+
+"Don't worry, Colonel Brook-White," came the calm voice of Frederic Hoff
+from the rear seat. "Chief Fleck has me here safe in shackles with the
+other prisoners."
+
+"God," cried Fleck, in astonished perplexity. "Is Frederic Hoff a
+Britisher--one of your men?"
+
+"Rather," said Brook-White. "Chief Fleck, may I present Captain Sir
+Frederic Seymour, of the Royal Kentish Dragoons."
+
+But Fleck was too busy just then to heed the introduction, or to pay
+attention to the muttered "_Donnerwetters_" of indignation that burst
+from the lips of his other prisoners.
+
+Jane Strong had fainted dead away against his shoulder.
+
+
+
+CHAPTER XVIII
+
+WHAT THE PACKET CONTAINED
+
+"But," said Jane, "I can't understand it yet. How did you, a British
+officer, happen to be living with old Otto Hoff? How did you ever get
+him to trust you with his terrible secrets?"
+
+Captain Seymour chortled gleefully. Now that he was arrayed in proper
+British clothes, once more comfortable in the uniform of his regiment
+and had his monocle in place and was with Jane again, everything looked
+radiantly different. Even his speech no longer retained its
+international quality but now was tinctured with London mannerisms.
+
+"Oh, I say," he replied, "that was a ripping joke on the bally
+Dutchmen."
+
+Jane eyed him uncertainly. He seemed almost like a stranger to her in
+this unfamiliar guise, though for hours she had been eagerly looking
+forward to his coming.
+
+The exciting developments of the night before still were to her very
+puzzling. She recalled Frederic's identification of himself, and after
+that all was blank. When she had come to she had found herself in a
+motor being rapidly driven toward New York in the early dawn, with
+Carter as her escort. He had not been inclined to be at all
+communicative.
+
+"Let the Captain tell you the story himself," said Carter. "He knows all
+the details."
+
+"But when can I see him?" questioned Jane. "When," she hesitated,
+remembering the shameful bonds that had held him, "when will he
+be free?"
+
+"He's as free this minute as we are," Carter explained. "It didn't take
+the Chief long to get the bracelets off, after Colonel Brook-White had
+identified him. There's a lot for the Captain to do still, but rest
+assured, he'll waste no time getting back to the city to see you."
+
+"I hope not," sighed the girl.
+
+She was too weary, too weak from the revulsion of feeling that had come
+on learning that her lover instead of being a dastardly spy was a
+wonderful hero, to make even a pretense at maidenly modesty. She wanted
+to see Frederic too much to care what any one thought.
+
+Slipping into her home fortunately without arousing any of her family,
+she had gone to bed with the intention of getting a rest of an hour or
+two. Sleep, she was sure, would be impossible, for she felt far too
+excited and upset. Yet she had not realized how utterly exhausted she
+was. Hardly had her head touched the pillow before she was lost to
+everything, and it was long after noon when a maid aroused her to
+announce that Captain Seymour had 'phoned that he would call at three.
+
+As she dressed to receive him, she was wondering how she should greet
+him. Blushingly she recalled the impassioned kiss he had pressed on her
+lips--why it was only yesterday. It had seemed ages and ages ago, so
+much had intervened. Mingled with a shyness that arose from her vivid
+memories was also a shade of indignation. Why had he not told her? Did
+he not trust her? She resolved to punish him for not taking her into his
+confidence by an air of coldness toward him. Certainly he deserved it.
+
+Yet, when he arrived, so full of animation did he appear to be, that
+the lofty manner in which she greeted him apparently went unnoticed. He
+met her with a warm handclasp and anxious inquiries about how she felt
+after all the exciting events. Too filled with eagerness to know all the
+details of his adventures she had found it difficult to maintain her
+pose, and soon was seated cosily beside him, asking him question after
+question, all the while furtively studying him in his proper role. As
+Frederic Hoff she had thought him wonderfully handsome and masterful. As
+Captain Sir Frederic Seymour, in his regimental finery, he was simply
+irresistible.
+
+"A joke?" she repeated. "Do explain, I'm dying to know all about it."
+
+"It wasn't half as difficult a job as one might imagine, you know. Our
+censor chaps at home have got to be quite expert at reading letters,
+invisible ink and all that sort of thing. Hoff for months had been
+sending cipher messages to the war office in Berlin. He kept urging them
+to act on his all-wonderful plan for blowing up New York. They decided
+finally to try it and notified old Otto they were sending over an
+officer to supervise the job."
+
+"What became of him? The officer they sent over?"
+
+"Our people picked him off a Scandinavian boat and locked him up. They
+took his papers and turned them over to me. Clever, wasn't it?"
+
+"And you took his name and his papers and came here in his place? Oh,
+that was a brave, brave thing to do."
+
+"I wouldn't say that," said Seymour modestly. "I fancy I look a bit like
+the chap, and I speak the language perfectly."
+
+"But it was such a terrible risk to take," cried Jane with a shudder.
+"Suppose they'd found you out?"
+
+"No danger of that," laughed Frederic. "Old Otto never had seen the chap
+who was coming. His real nephew, Frederic Hoff, whose American birth
+certificate was used, died years ago. Besides I had the German officer's
+papers and knew just what his instructions were. The worst of it was
+when old Otto insisted every night on toasting the Kaiser, and when he
+kept trying to get me mixed up in his dirty schemes. I had to go
+through with the former once in a while, but on the latter, I--how do
+you Americans say it--just stalled along. My orders were to land him
+only on the big thing--his wonder-workers."
+
+"But how did you explain to him that British uniform?"
+
+"Now that was really an idea. The old fellow was getting a bit cross and
+suspicious with me because he thought I wasn't doing enough while they
+were getting his 'wonder-workers' ready. At one time he was so
+distrustful of me that he had me followed."
+
+"Oh, yes, I know," said Jane quickly. With a thrill she remembered the
+scene she had witnessed from her window the night K-19, her predecessor
+on Chief Fleck's staff, had been murdered. In her relief at discovering
+that Frederic was no German spy, she had forgotten that for weeks and
+weeks she had all but believed him guilty of murder. Now, something told
+her, surely and confidently, that he could explain it all.
+
+"I saw you from my window one night before I met you," she went on. "A
+man was following you, and you chased him around the corner."
+
+"I remember that," he said; "the poor chap was found dead the next
+morning. Old Otto killed him. The man had been following me, and I had
+imagined that he was one of old Otto's spies and knocked him down. I
+couldn't find anything on him to indicate who he was, so just as he was
+beginning to revive I left him and came on home. It seems old Otto had
+been watching him trail me. He followed along and shot the man. He
+gleefully told me about it the next day, the hound. I ought to have
+given him over to the police, but that would have upset our plans."
+
+"I see," said Jane; "what about Lieutenant Kramer? Was he working with
+old Mr. Hoff?"
+
+"That's the funny part of it. Here in this country you've got so many
+kinds of secret agents they're always trampling on each others' toes.
+There's your treasury agents, and your Department of Justice agents, and
+your army intelligence men and your naval intelligence men--nine
+different sets of investigators you've got, counting the volunteers, so
+some one told me, and each lot trying to make a record for itself and
+not taking the others into its confidence. Rather stupid I call it."
+
+"I should say so," agreed Jane.
+
+"Here was I watching old Hoff for our government, and Kramer watching me
+for your navy and Fleck watching both of us. It was a funny jumble."
+
+"But about that uniform?" Jane persisted.
+
+"When the old man got to ragging me a bit, I felt I must do something to
+convince him I was all right. I suggested trying to get a British
+uniform and maybe learning thereby some secrets. It delighted him
+hugely. Of course I just went down to Colonel Brook-White and got my own
+uniform, and that was all there was to that."
+
+"It puzzled Mr. Carter, though, how you got it in and out of the house.
+He used to open every bundle that came for Mr. Hoff."
+
+Sir Frederic laughed delightedly.
+
+"I had a messenger who used to bring it back and forth in a big lady's
+hat-box. It always was addressed to you, my dear, but the boy had
+instructions to deliver it to me."
+
+"Humph," snapped Jane with mock indignation. "And when did you first
+find out that I was helping Chief Fleck watch you?"
+
+"I suspected it from the start. Kramer told me how you'd become
+acquainted with him. Then when I heard you 'phoning Carter about the
+bookstore I knew for certain."
+
+"Oh, that's one thing now I wanted to ask about--those messages Hoff
+left in the bookstore. Who were they for?"
+
+"Instructions to a German advertising agency on how to word some
+advertisements that contained a code."
+
+"Oh, those Dento advertisements?"
+
+"You knew about them?" cried Seymour in astonishment.
+
+"Of course," said Jane proudly. "I was the one who deciphered them; but
+what did that girl do with those messages? Carter had a theory that she
+slipped them under a dachshund's collar."
+
+"That theory's just like Carter," laughed Frederic--"regular detective
+stuff. I never heard of any dachshund's being used. The girl used to
+slip them into a letter box in her apartment-house hallway. Two minutes
+later a man would get them and carry them to their destination."
+
+"The traitors in our navy--the men who signalled old Otto and Lena Kraus
+about the transports--who were they? They are the scoundrels I'd like to
+see arrested and shot."
+
+"Never worry. They'll all meet their deserts. I can't tell even you who
+they are, but I've given your Chief Fleck a list of them. They will be
+quickly rounded up now. What else can I tell you?"
+
+"There's this," said Jane, the color rising to her cheeks as she drew
+forth from its hiding place in the bosom of her gown the packet he had
+entrusted to her the morning before, its seals still intact.
+
+"What?" he cried in delight. "You kept it safe? You did not open it even
+when you saw me arrested, when you must have been convinced that I was a
+spy? Girl, dear girl"--his voice became a caress, and the light of love
+flamed up in his eyes, "you did trust me then, in spite of everything."
+
+"I had promised you, and I kept my promise," faltered Jane, striving
+for words to explain, though she had been unable to explain her actions
+even to herself. "I think my heart trusted you all the time, even though
+my head and eyes made me believe you were what you pretended to be. Even
+when things looked blackest my heart persisted that you were true."
+
+"God bless your heart for that," cried Frederic, as he took the little
+packet from her hands and began breaking the seals. "Yesterday morning,
+when old Otto's plans were ready, I foresaw the danger of the trip ahead
+of me. I realized I might never come back alive. If they discovered who
+I was a second too soon it would mean my death. I dared not, for my
+country's sake, tell even you what I was doing. My honor was at stake. I
+dared not drop the slightest hint nor write a single line. The only
+thing I'd kept about me in the apartment that wasn't filthy German stuff
+was what's in here."
+
+Slowly he was unwrapping something rolled in tissue paper, as Jane,
+eager-eyed, looked wonderingly on.
+
+"But," he went on, "I couldn't go away from you without leaving some
+token, some clue. If it happened that I never came back, I wanted you
+to know--"
+
+He stopped abruptly.
+
+"To know what?" questioned the girl breathlessly.
+
+"To know that I loved you, darling, better than all else save honor," he
+said, taking her into his arms. "See the token I left behind for you.
+It's an old, old family ring with the Seymour crest. You'll wear it,
+girl of mine, won't you, wear it always."
+
+Unhesitatingly Jane Strong thrust forth the third finger on her left
+hand, and instinctively her lips turned upward toward his.
+
+And no matter what might have happened just then in the apartment next
+door, neither of them would have known anything about it.
+
+
+
+THE END
+
+
+
+
+
+End of Project Gutenberg's The Apartment Next Door, by William Andrew Johnston
+
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