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+Project Gutenberg's The Aeroplane Boys Flight, by John Luther Langworthy
+
+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 Aeroplane Boys Flight
+ A Hydroplane Roundup
+
+Author: John Luther Langworthy
+
+Release Date: January 2, 2004 [EBook #10576]
+
+Language: English
+
+Character set encoding: ISO-8859-1
+
+*** START OF THIS PROJECT GUTENBERG EBOOK THE AEROPLANE BOYS FLIGHT ***
+
+
+
+
+Produced by Juliet Sutherland, Dave Morgan and PG Distributed
+Proofreaders
+
+
+
+
+
+
+</pre>
+
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<h1>THE AEROPLANE BOYS FLIGHT</h1>
+
+<h3>Or A Hydroplane Roundup</h3>
+
+<h2>By JOHN LUTHER LANGWORTHY</h2>
+
+<br>
+
+<h6>1914</h6>
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CONTENTS"></a><h2>CONTENTS</h2>
+<br>
+
+<p>Chapter</p>
+
+<p><a href="#CHAPTER_I">I</a>&mdash;THE BOY FLIERS</p>
+
+<p><a href="#CHAPTER_II">II</a>&mdash;ON GUARD</p>
+
+<p><a href="#CHAPTER_III">III</a>&mdash;NOT CAUGHT NAPPING</p>
+
+<p><a href="#CHAPTER_IV">IV</a>&mdash;THE STARTLING NEWS</p>
+
+<p><a href="#CHAPTER_V">V</a>&mdash;THE EXCITEMENT GROWS</p>
+
+<p><a href="#CHAPTER_VI">VI</a>&mdash;FIGURING IT ALL OUT</p>
+
+<p><a href="#CHAPTER_VII">VII</a>&mdash;THE AIR SCOUTS</p>
+
+<p><a href="#CHAPTER_VIII">VIII</a>&mdash;JUST BELOW THE CLOUDS</p>
+
+<p><a href="#CHAPTER_IX">IX</a>&mdash;THE PILOT OF THE MERMAID</p>
+
+<p><a href="#CHAPTER_X">X</a>&mdash;HEARD OVER THE WIRE</p>
+
+<p><a href="#CHAPTER_XI">XI</a>&mdash;COMPARING NOTES</p>
+
+<p><a href="#CHAPTER_XII">XII</a>&mdash;AT THE HOSKINS FARM</p>
+
+<p><a href="#CHAPTER_XIII">XIII</a>&mdash;THE BUTTERFLY COLLECTOR</p>
+
+<p><a href="#CHAPTER_XIV">XIV</a>&mdash;A CLUE</p>
+
+<p><a href="#CHAPTER_XV">XV</a>&mdash;WHEN CASPER CAME BACK</p>
+
+<p><a href="#CHAPTER_XVI">XVI</a>&mdash;THROWING OFF THE MASK</p>
+
+<p><a href="#CHAPTER_XVII">XVII</a>&mdash;SALLIE RIDES BAREBACK</p>
+
+<p><a href="#CHAPTER_XVIII">XVIII</a>&mdash;AN AEROPLANE CHASE</p>
+
+<p><a href="#CHAPTER_XIX">XIX</a>&mdash;DROPPING A &quot;BOMB!&quot;</p>
+
+<p><a href="#CHAPTER_XX">XX</a>&mdash;OVER LAND AND SEA</p>
+
+<p><a href="#CHAPTER_XXI">XXI</a>&mdash;OVER THE BOUNDARY LINE</p>
+
+<p><a href="#CHAPTER_XXII">XXII</a>&mdash;THE HYDROPLANE RESCUE</p>
+
+<p><a href="#CHAPTER_XXIII">XXIII</a>&mdash;BROUGHT TO BOOK&mdash;CONCLUSION</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<h2>THE AEROPLANE BOYS FLIGHT</h2>
+
+<h3>Or A Hydroplane Roundup</h3>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_I"></a><h2>CHAPTER I</h2>
+<br>
+
+<p>THE BOY FLIERS</p>
+
+<p>&quot;It was my mistake, Frank!&quot;</p>
+
+<p>&quot;How do you make that out, Andy?&quot;</p>
+
+<p>&quot;Simply because I was using the little patent Bird monkey-wrench last in
+our shop, and should have put it back in the toolbox belonging to the
+aeroplane. The fact that it isn't here shows that I mislaid it. Give me
+a bad mark, Frank.&quot;</p>
+
+<p>&quot;Well, I must say it's a queer stunt for you to forget anything, Andy
+Bird. But with dark coming along, and home some miles away, it's plain
+that we'll have to let the mending of that wing go till morning.&quot;</p>
+
+<p>&quot;But do you think, Frank, it's just safe to leave our pet hydroplane
+over night in this field on the Quackenboss farm?&quot;</p>
+
+<p>&quot;Why not, Andy? Sky as clear as a bell; little or no wind promised; and
+then we can hire the farm hand, Felix Boggs, to keep an eye on it. Looks
+as easy as falling off a log.&quot;</p>
+
+<p>&quot;And all because I didn't put that little wrench where it belonged!
+Kick me, won't you, please, cousin; I deserve it.&quot;</p>
+
+<p>&quot;Well, I guess not. Didn't I make just as bad a break last week? I guess
+now, no boy's perfect. And I don't mind the walk home a bit. Fact is, it
+ought to do us both good, because we don't stretch our legs enough, as
+it is.&quot;</p>
+
+<p>&quot;You're the boss chum, Frank!&quot;</p>
+
+<p>&quot;Then you're another. See what you get for calling me names. But when
+you've fastened down that plane so it can't get into trouble, if the
+wind should rise in the night, perhaps we'd better be hunting up this
+Felix Boggs, and then start for home.</p>
+
+<p>&quot;Well, I'm glad we'll get there in the night-time, Frank, even if the
+moon does happen to be nearly full.&quot;</p>
+
+<p>&quot;What makes you say that, Andy?&quot;</p>
+
+<p>&quot;Because, when an aviator leaves his wounded machine in a field, and
+walks home, it makes him feel like a dog with his tail between his legs,
+sneaking along back of the fences.&quot;</p>
+
+<p>Frank Bird laughed merrily at the picture drawn by his cousin and then
+stooping again, with a few deft turns of a heavy cord, helped Andy
+secure the broken plane so it would not get into trouble during the
+coming night.</p>
+
+<p>After which the two boys headed toward the barns belonging to the farm,
+which just showed their tops above the adjacent rise.</p>
+
+<p>While they are walking there it may be a good time for us to introduce
+the pair of young aviators to such readers as have not had the good
+fortune to meet them in previous volumes of this series of stories.</p>
+
+<p>The cousins lived in the town of Bloomsbury, a thriving place situated
+on the southern shore of Sunrise Lake, which was a magnificent body of
+water, said to be nearly seventeen miles long by three wide, in places.</p>
+
+<p>This lake having hilly shores that were heavily wooded in spots, and
+with numerous fine coves, afforded grand sport to the young people of
+Bloomsbury, both winter and summer.</p>
+
+<p>The railroad skirted one shore and then passed through the town. Some
+miles off arose a lofty peak known as Old Thundertop, which had a road
+running part way up its side. The summit was believed to be utterly
+inaccessible to mortal man until one day the Bird boys managed to
+accomplish the wonderful feat by the aid of their aeroplane.</p>
+
+<p>They had been spending all their spare time, when not in school, working
+upon the line that seemed to have a strange fascination for them.
+Frank's father was one of the best known doctors in town, a man of
+considerable means, and with a firm faith in his boys, so that he was
+easily convinced whenever Frank wished to do anything.</p>
+
+<p>Andy had been living with his guardian for some time, until the return
+of his own father, Professor Bird, who had been lost while attempting a
+difficult balloon trip in Central America, and found in a most
+miraculous way by the two boys as told in a previous story.</p>
+
+<p>Andy had inherited the passion which his father, a noted professor, had
+always had for navigating the air. It was a favorite expression of his
+&quot;A bird by any other name would fly as high,&quot; and his cousin would
+retort: &quot;A Bird takes to the air just as naturally as a duck does to
+water.&quot;</p>
+
+<p>They had been doing some fine &quot;stunts&quot; during the last year or two; and
+it may be supposed that the people of Bloomsbury were more than a little
+proud of seeing the name of their town mentioned so favorably in the
+papers in connection with the doings of the Bird boys.</p>
+
+<p>Of course, as is always the case, there was a rival in the field, who
+had been the cause of much trouble in the past, and still watched their
+work with an envious eye. This was a boy by the name of Percy Shelley
+Carberry, rather a bold fellow too, and as smart as they make them, only
+unscrupulous as to the means he employed by which to gain his ends.</p>
+
+<p>Percy was the only son of a rich widow, who could never refuse him
+anything he demanded; and with unlimited cash at his disposal he had
+been able to do quite a few feats himself that might have gained him
+more or less fame, only that they were eclipsed by the accomplishments
+of Frank and Andy; and that was where the shoe pinched with Percy.</p>
+
+<p>His temper was one of his weak spots, also a liking for fast life,
+which, of course included tippling; and the aviator who indulges to the
+slightest degree in strong drink is next door to a fool; for as he takes
+his life in his hands every time he leaves the ground, the necessity for
+a clear brain is apparent.</p>
+
+<p>In most of his tricky work young Carberry had for a boon companion one
+&quot;Sandy&quot; Hollingshead, a sinewy chap, whose most prominent trait was his
+faculty for disappearing suddenly in a pinch. He was considerable of a
+boaster, but could always invent a most remarkable excuse for going
+before the storm broke. But Percy, no coward himself, knew how to make
+use of his sly crony; and despite their numerous quarrels, that often
+ended in actual fights, the pair of precious tricksters still kept
+company together.</p>
+
+<p>Sandy was freckled had pale eyes and very blonde hair, that gave him a
+queer look. Those eyes never could look any one straight in the face,
+but shifted uneasily; and other boys said that Sandy, the cigarette
+smoker, was always on the watch for a quick &quot;getaway.&quot;</p>
+
+<p>The Bird boys, of course, had many friends among the lads of Bloomsbury;
+but only two who were close enough to be admitted freely to the workshop
+on the grounds of Frank's father's place, where the young inventors
+worked out many of their lofty ideas.</p>
+
+<p>These were Larry Geohegan, and a small runt who had been called
+&quot;Elephant&quot; by his companions in a spirit of sport, and could not shake
+the name. His full name was Fenimore Cooper Small, and as a rule he had
+always been rather timid. But Elephant was always having queer ideas in
+which he believed fully himself; but which were nearly always jeered at
+by more practical Larry.</p>
+
+<p>The two Bird boys had been out on this afternoon, trying some new
+arrangement in connection with their hydroplane, when they met with an
+accident when attempting to land on the Quackenboss farm, to make some
+changes they saw were needed, to improve the working of the machine.</p>
+
+<p>Neither of them had been even scratched, but a certain amount of damage
+had befallen one of the planes, which might have been remedied on the
+spot in time to allow them to get back home easily, only for the
+unfortunate fact that just when they needed a monkey wrench the worst
+kind, it was discovered to be missing; perhaps the only occasion when
+such a thing had happened with the boys.</p>
+
+<p>&quot;I just saw somebody go into the barn there,&quot; remarked Frank, as they
+approached the large outbuildings connected with the successful farm of
+Josiah Quackenboss.</p>
+
+<p>&quot;Yes, and it was the farmer himself,&quot; added Andy. &quot;I know him pretty
+well; and I guess you do too, because your father brought his little boy
+around when everybody thought he didn't have a single chance to get
+well. I don't believe we'll have any trouble getting Felix Boggs to look
+after our machine tonight, Frank.&quot;</p>
+
+<p>They quickly reached the door of the barn and could hear the steady fall
+of the streams of milk passing into the buckets as the farmer and his
+hired hand pursued the regular business of the evening.</p>
+
+<p>As the two boys entered, the half grown boy started up with an
+exclamation of alarm, for of course both Andy and Frank looked rather
+queer. Each of them had on a white woolen hood that fitted close to head
+and shoulders, for the air in the upper currents was very cold these
+days, and secured to this were goggles to protect the eyes, so that they
+would not water and dim the vision of the aviator at just a critical
+instant when they needed clear sight. Then they also wore warm colored
+mackinaw jackets, so that altogether Felix had reason to be startled
+when two such &quot;sights&quot; suddenly entered the barn. Why, even the gentle
+cows showed evidence of nervousness, and came near upsetting the milk
+buckets.</p>
+
+<p>&quot;Hello, Mr. Quackenboss!&quot; called out Andy, cheerfully; &quot;we're the Bird
+boys, and we've dropped in on you without an invitation. The fact is, we
+had a little trouble with our aeroplane, and landed in your field. How
+much rent will you charge us, Mr. Quackenboss; to let our machine lie
+there over night? It needs a little fixing which we can't do until
+morning.&quot;</p>
+
+<p>Of course Andy was joking when he said this, and the farmer knew it as
+well as anything. He laughed as he came around out of the stall and
+offered his rough hand to each of the boys.</p>
+
+<p>&quot;How are you, Andy and Frank Bird?&quot; he said, hearty. &quot;Say, you did give
+us a little start when we first saw you. D'ye know what I thought boys?
+Why, I was just reading in the county paper about how the bank up at
+Jasper was robbed by two men last week. It told how they had their faces
+hid back of red handkerchiefs, just like they always do out West, you
+know. And first thing I sighted you two, my heart nigh about jumped up
+in my mought, because I thought them yeggs had dropped around to see if
+I'd collected my monthly milk accounts in town. And about leavin' your
+aeroplane in my field, why, there's little that I wouldn't do for the
+son of the man who saved my Billie, when everybody said he'd never get
+well again.&quot;</p>
+
+<p>&quot;We thought you might let us show Felix here where the aeroplane lies,
+and that we could arrange with him to kind of keep an eye on it tonight.
+Of course, there isn't one chance in a thousand that anything'd happen
+to injure it; but then that machine represents a heap of hard work, and
+considerable money besides, so we don't care to take chances with it.</p>
+
+<p>&quot;Sure he can, just as well as not, eh, Felix? Suppose you go out right
+now, and I'll finish the milking. In the morning I want to take a look
+at that contraption myself. I've seen you boys sailing around more'n a
+little, but never got close up to examine the aeroplane. Well, I guess
+all the money going couldn't tempt me to go with one of you. Skip along,
+Felix, now.&quot;</p>
+
+<p>And the farm hand, a heavy-set boy, eagerly fell in behind Frank and
+Andy, as, after thanking Mr. Quackenboss heartily for his kindness they
+passed out of the barn. Felix considered this an event in the tame
+routine of farm life; and would be only too glad to stay up all night,
+if necessary, in order to guard the precious aeroplane.</p>
+
+<p>Once in the field, the boys explained to Felix what they wanted him to
+do, and he promised not to meddle with anything connected with the
+engine or the aeroplane itself.</p>
+
+<p>They were passing back again toward the barns, having left their prized
+possession in good shape, when Andy uttered a sudden exclamation that
+told of both surprise and disgust.</p>
+
+<p>&quot;What's the matter now?&quot; asked Frank, who had been talking with Felix,
+and was hence not so wide awake as his chum.</p>
+
+<p>&quot;Just take a look over there, and see what's stopped on the road,&quot;
+remarked Andy.</p>
+
+<p>&quot;Seems to be a car, and I can see two heads raised above the top rail
+of the fence, as if the people in it had sighted our aeroplane sprawled
+out there in the field, and were wondering what sort of giant insect it
+could be,&quot; Frank went on.</p>
+
+<p>&quot;Look closer, Frank,&quot; the other boy went on to say, while his disgust
+deepened; &quot;and you'll discover that the two fellows in that car happen
+to be Percy Carberry and his shadow, Sandy Hollingshead. Did you ever
+hear of such tough luck? Of all the boys in Bloomsbury they are the last
+we'd want to know that we'd left our new hydroplane out, unguarded, all
+night, in an open field. Guess I won't go home tonight, Frank. I'd
+rather camp out here with Felix. You let my folks know, and turn up in
+the morning with a new piece for that plane. That's settled and you
+can't change it.&quot;</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_II"></a><h2>CHAPTER II</h2>
+<br>
+
+<p>ON GUARD</p>
+
+<p>&quot;Perhaps I'd better stay with you, Andy,&quot; the other Bird boy remarked.</p>
+
+<p>&quot;No need of it,&quot; replied Andy, resolutely. &quot;Besides, you know one of us
+ought to get busy in the shop, making that new piece we really need so
+that our job won't have to be done over again. You go, Frank. Perhaps
+Mr. Quackenboss would let you have a horse; or if you cared to, you give
+Percy a hail, and he'd take you back to town, I reckon. Goodness knows
+he owes you a heap, after the way you saved his life the time he was
+wrecked up on Old Thundertop.&quot;</p>
+
+<p>What Andy referred to was a very exciting event which had occurred not
+so very long before, and which was fully treated in the volume preceding
+this.</p>
+
+<p>Frank shook his head in the negative.</p>
+
+<p>&quot;I never want to ask any favor of Percy Carberry,&quot; he said, resolutely.
+&quot;And if Mr. Quackenboss can't let me have a horse to ride, why, the
+walking is good, and I can make it in less than an hour. So don't
+mention that again please, Andy.&quot;</p>
+
+<p>&quot;It's too late now, anyhow,&quot; remarked the other, drily, &quot;because there
+they go, spinning down the road like wildfire. Percy never does anything
+except in a whirl. He's as bold as they make them, and the only wonder
+to me is that he hasn't met with a terrible accident before now. But
+somehow he seems to escape, even when he smashes his flier to kindling
+wood. His luck beats the Dutch; he believes in it himself, you know.&quot;</p>
+
+<p>&quot;But some day it's going to fail, and then he'll never what happened to
+him,&quot; declared Frank. &quot;Of all the professions in the world, that of a
+flying machine man is the one where a cool head and quick judgment are
+the things most needed. And the fellow who takes great chances,
+depending on his good luck, is bound to meet up with trouble. But if you
+are bound to stay, Andy, I'd better be off.&quot;</p>
+
+<p>Upon entering the barn they found that the farmer had finished his task,
+and was pitching some new sweet hay to the cows.</p>
+
+<p>Frank suggested hiring a horse from him, but Mr. Quackenboss scoffed at
+the idea.</p>
+
+<p>&quot;You're as welcome to the use of my saddle hoss as the sunlight is after
+a spell of rain,&quot; he said, heartily. &quot;Here, Felix, get Bob out; and
+you'll find my new saddle hanging on that peg back of the harness room
+door. And as for Andy, who's going to stay over with us, we'll find a
+chair for him at the supper table, and only hope hell tell us some of
+the many things you two have gone through with, both around this region,
+and away down in South America, that time you found the lost Professor.&quot;</p>
+
+<p>Inside of five minutes Frank was in the saddle, and waving his hand to
+his chum and cousin, of whom he was more fond than if Andy had been his
+own brother.</p>
+
+<p>&quot;He'd be back tonight with the part we need, and we could make home in
+the moonlight,&quot; said Andy, as, with the farmer he headed for the house;
+&quot;only both of us have promised our folks not to travel at night-time
+when it can be helped. Even if the moon is bright there's always a risk
+about landing, because it's a tricky light at the best, and even a
+little mistake may wreck things. And so Frank will work in the shop
+tonight, and be along in the morning.&quot;</p>
+
+<p>Once in the farmhouse Andy was given a chance to wash up, and then met
+the housewife, as well as little Billie, the small chap whose life good
+Doctor Bird had saved. Mrs. Quackenboss proved to be a very warm-hearted
+woman, and any one who answered to the name of Bird could have the very
+best that the place afforded. There was never a night that she did not
+call down the blessings of heaven upon the physician who had been
+instrumental in preventing her darling Billie from being taken away.</p>
+
+<p>The table was fairly groaning under the weight of good things to eat,
+for when company comes the average farmer's wife never knows when to
+stop bringing out the most appetizing things to eat ever seen.</p>
+
+<p>&quot;Perhaps I'm the luckiest fellow going to be able to stay over-night
+with you, Mrs. Quackenboss,&quot; laughed Andy, as he sat down to the
+generous spread.</p>
+
+<p>&quot;Well, you know, we never like anybody to get up from our table hungry,&quot;
+she explained.</p>
+
+<p>&quot;The chances are that I won't be able to get up at all, for if I try to
+taste half I see here, I'll be foundered, as sure as anything,&quot; Andy
+went on to say.</p>
+
+<p>The farmer was not going to allow much time to pass talking about common
+every-day topics. Those might do all very well when he had ordinary
+guests; but when fortune sent him one of the now famous Bird boys for
+company, he wanted to listen to some thrilling accounts of adventures
+that had come the way of the young and daring aviators, from the time
+they built their first aeroplane, after purchasing most of the parts,
+and found that they had an immediate rival in Percy Carberry.</p>
+
+<p>Andy was willing to oblige, and kept those at the table, including the
+farm hand, Felix Boggs, thrilled with his stories. But the farmer could
+not help but notice how modest the boy was, giving most of the credit to
+his cousin Frank, when everybody about Bloomsbury knew that Andy
+deserved just as much credit, if not more, than the other Bird Boy.</p>
+
+<p>After supper Andy and Felix prepared to go out to where the hydroplane
+lay. They meant to take blankets along, and make themselves as
+comfortable as possible for a night's vigil.</p>
+
+<p>Andy would not have dreamed of doing this only for the fact that he knew
+Percy and his shadow, Sandy, were aware of the plight of the precious
+flier. And while Frank was inclined to partly believe that the Carberry
+boy might let up in his mischief-making ways for awhile at least, after
+all they had done for him up on Old Thundertop, Andy could not bring
+himself to trust the other further than he could see him. He believed
+that the nature of Percy was so &quot;rotten&quot; as he called it, that, given a
+chance to injure his successful rivals, he would shut his eyes to all
+sense of gratitude, and just lie awake nights trying to get the better
+of them, by fair means or foul.</p>
+
+<p>Andy also knew that the other was particularly chagrined, because he did
+not know what manner of a new flier the Bird boys had in hand now. He
+had resorted to various expedients in order to find out, but all without
+success.</p>
+
+<p>On this account, if no other, then, Andy believed that the others would
+be apt to come out here during the night to examine the hydroplane with
+the aluminum pontoons under its body for floating on the water; and
+perhaps to slily injure it in such a fashion that it would break down
+when next Frank and Andy mounted into the air.</p>
+
+<p>It happened that they had alighted close to one corner of the big field,
+though in plain view from the pike. Andy had noted a clump of trees
+conveniently near, and already his mind was made up that he and Felix
+would camp there, to pass the night in alternately keeping watch and
+ward over the precious aeroplane that lay there like a wounded bird.</p>
+
+<p>Felix was quivering with eagerness. This was like a picnic in the
+humdrum life of the farm hand. Except when the circus came to town, or
+there was a Harvest Home day, poor Felix knew little beyond the eternal
+grind of getting up before dawn, and working until long after sunset.</p>
+
+<p>First of all, Andy walked around the stranded aeroplane, and took
+occasion to explain how it worked, using as simple language as he could
+find, because Felix was not at all up in professional terms, and would
+not have understood, had the other spoken as he might have done when
+talking with a fellow aviator.</p>
+
+<p>Then they sought the trees, and spreading their heavy blankets so as to
+make as comfortable a seat as possible, started to talk in low tones.</p>
+
+<p>The bright moon hung there in the sky, and it seemed as though every
+foot of the big meadow could be scrutinized just as well as in the
+daytime; but Andy knew from experience how deceptive moonlight can be,
+and how cautious one has to be when trying any difficult feat at such a
+time.</p>
+
+<p>&quot;I've heard people talk about reading by moonlight, and how they could
+tell a friend half a mile away,&quot; he remarked to Felix; &quot;but let me say
+that it's all a humbug. There never was a brighter night than this, I
+reckon you'll agree with me, Felix; and yet look at that stump not a
+stone's throw away; you couldn't say now whether it was a cow lying
+down, a horse, a rock, or a stump, which last I take the thing to be.
+Am I right about that.&quot;</p>
+
+<p>&quot;Why, sure's I live, that ere is a fact, Andy,&quot; replied the other; &quot;but
+I never'd a thought it. Moonlight fools a feller the worst kind. I
+throwed a stone at a whippoor-will as was perched on the roof a-keepin'
+us all awake nights, and would yuh believe me, she went right through
+the winder of the attic, kersmash. Never was more surprised in my life.
+And you don't ketch me heavin' stones by moonlight agin.&quot;</p>
+
+<p>From one subject they drifted to another. Andy even told more or less
+about how Percy Carberry had hated and envied them in the past, and how
+often he had tried to do them a serious injury.</p>
+
+<p>&quot;Frank seems to think he will give up that mean sort of play, because we
+really saved his life that time we had our race to the rock on the
+summit of Old Thundertop, and his aeroplane was smashed there; so one of
+us had to carry Percy and Sandy home, bruised as they were. But I don't,
+because I know it'd take more than that to change the spots of a fellow
+of his kind. And chances are, Felix, we'll find those two boys sneaking
+up here before the middle of the night.&quot;</p>
+
+<p>&quot;Wish't they would,&quot; chuckled the farm hand. &quot;You're ready to give 'em
+a warm time of it, I guess, Andy. Be as good as any old circus to me,
+just to see how they jump when you open up. Let 'em come, says I. The
+sooner the better, too.&quot;</p>
+
+<p>Long they lay there, and talked in low tones. Felix wanted to make the
+best of this glorious chance. A new world seemed to open up to the farm
+hand, as he heard of the wonderful things the Bird boys had seen, and
+taken part in. Perhaps ambition was beginning to awaken in the boy's
+soul, and he might not after this be so satisfied to plod along in the
+same old rut every day of the year. Perhaps the seed thus sown might
+take root, and bring him either great good or harm, as the tide of
+fortune chose.</p>
+
+<p>&quot;We heard as how a feller was up there to watch you boys fly not a great
+while ago, Andy,&quot; he went on to say; &quot;an' he was so took by the way you
+managed things that he wanted to get you to go in with a big concern run
+by a boss airman; but you just up and told him you couldn't do that
+same. Was that so?&quot;</p>
+
+<p>&quot;Why, yes, you must mean Mr. Marsh,&quot; returned the other, modestly. &quot;I
+believe he did read some account of us that got into the papers, and was
+sent up here to look us up. He was kind enough to compliment Frank on
+the way he made that corkscrew climb; and also on his volplane drop;
+said we had both of them down pretty fine; and he did hint at our having
+a chance to go in with his company; but of course we couldn't think of
+that. We're too young to dream of being professional fliers yet; and
+besides, we've got to go to school again pretty soon. So we turned the
+offer down. But Mr. Marsh was mighty kind, and we liked him a heap.&quot;</p>
+
+<p>&quot;Heard how he was watching you fly, when that little chap belonging to
+Cragan, the fisherman, got overboard, out in the lake; and this same
+gent, he saw Frank dive right off his aeroplane like a bullfrog, and
+save little Tommy. That jest took him by storm, he told Mr. Quackenboss,
+and he meant to get you boys for his company if money could do it, but
+it all ended in smoke, didn't it.&quot;</p>
+
+<p>It was almost half past nine before Andy decided that the time had come
+for them to shut up shop, and do no more talking.</p>
+
+<p>&quot;I'm going to take the first watch myself, Felix, and I promise to wake
+you up when I get to gaping, whether it's midnight or two in the
+morning,&quot; he said, as he settled himself more comfortably on his
+blanket, and pulled it up over his shoulders, because the night air was
+already quite chilly, and would undoubtedly be much more so ere long.</p>
+
+<p>&quot;But chances air, Andy, they're a-goin' to come inside an hour or so;
+and you must promise to give me a kick, if so be I'm sleepin', then. You
+will, won't you?&quot;</p>
+
+<p>&quot;Sure,&quot; replied the Bird boy. &quot;After you being so kind as to keep me
+company, I'd never think of making a move, and you asleep. So just
+settle down, and don't get excited if you feel me pushing my toe into
+your ribs later on.&quot;</p>
+
+<p>Felix was tired from his day's work. He had probably been constantly
+busy since four the morning before. It was therefore a fight between
+weary muscles and brain, and the desire to stay awake, in order to see
+all that went on.</p>
+
+<p>This lasted for perhaps ten minutes.</p>
+
+<p>Then Andy knew that Nature had won out, for he could catch the regular
+breathing of the stout farmhand, and from this judged that Felix must be
+sound asleep.</p>
+
+<p>From where Andy sat he had a fine view of the field on all sides of the
+broken hydroplane, and especially in that quarter toward the fence,
+beyond which the road leading to Bloomsbury lay.</p>
+
+<p>He kept up a constant watch, never relaxing his vigilance for a single
+second, for Andy knew that while one might be on guard for fifty-nine
+minutes, if he relaxed just for a breath, that was almost sure to be the
+time when something would happen. How often he had proved that when
+fishing, and taking his eye from his float just to glance up at some
+passing bird, when down it would bob, and he had missed a chance to hook
+a finny prize.</p>
+
+<p>The time passed on.</p>
+
+<p>Three separate times did Andy look at his little dollar nickel watch,
+and in the bright moonlight he could see that it was now after eleven.
+He was beginning to believe that if there was anything doing that night,
+it must come about very soon, when he thought he heard a sound down the
+road that made him think a car that had been coming along had stopped
+short.</p>
+
+<p>Thrilled with the expectation that a change was about to occur, he sat
+up a little more eagerly, and continued to scan the line of fence, as
+well as the field lying between the road and the helpless hydroplane.</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_III"></a><h2>CHAPTER III</h2>
+<br>
+
+<p>NOT CAUGHT NAPPING</p>
+
+<p>Five, ten minutes passed.</p>
+
+<p>Andy was beginning to fear that after all he had been mistaken, and that
+it had been some other sound he had heard when he thought a car had
+stopped down the road toward Bloomsbury.</p>
+
+<p>Then all at once he detected a movement over at the fence, and the
+figure of a man or boy was seen to quickly clamber over, dropping in the
+field. Even as he looked a second followed suit, then a third and even a
+fourth.</p>
+
+<p>&quot;Whew! what's all this mean?&quot; Andy whispered to himself, as he took
+notice of the fact that there was quite a procession of fellows changing
+base from the road to the field: &quot;Percy and Sandy thought they might
+need help in their little game of smashing our machine, or carrying it
+off somewhere, so as to give us a bad scare; and I reckon they've picked
+up a couple more of the same kind as themselves. Well we ought to be
+able to take care of four just as easy as two 5 and the howl will be
+all the louder, I guess.&quot;</p>
+
+<p>He moved over a little, and with the toe of his shoe nudged Felix under
+the ribs.</p>
+
+<p>&quot;Quit shovin' there!&quot; muttered the farm hand, possibly thinking he was
+in bed with some other boy.</p>
+
+<p>Luckily the night breeze was making the windmill turn, not very far
+away; and as it needed oiling, there was a constant succession of
+squeaks and groans; so that the chances of Felix being heard when he
+spoke in this way were very small. Andy would not take any further risk
+but creeping over shook the boy roughly.</p>
+
+<p>&quot;Wake up, Felix; they're coming across the pasture!&quot; he whispered in his
+ear.</p>
+
+<p>That was quite enough for Felix. He seemed to grasp the situation at
+once, and only muttering the one significant word, &quot;Gosh!&quot; he
+immediately sat up.</p>
+
+<p>Andy, moving as little as possible, pointed to where moving figures
+could just be detected advancing in a bent-over attitude.</p>
+
+<p>&quot;How many?&quot; whispered the farm hand.</p>
+
+<p>&quot;I counted four,&quot; replied the other.</p>
+
+<p>&quot;Whee! bully for that!&quot; chuckled Felix, no doubt tickled because the
+promised circus would be a double-ring affair, instead of the ordinary
+kind, and therefore quite up to date.</p>
+
+<p>Both of them lay there watching intently.</p>
+
+<p>They could see how the intruders were crawling along, anxious apparently
+only to avoid being seen from the direction of the farmhouse, the roof
+of which showed dimly in the moonlight over on the other side of the
+little ridge.</p>
+
+<p>As the creepers drew closer, the watchers saw that they had adopted the
+method spoken of by the farmer in connection with the bank thieves,
+keeping their identity secret&mdash;they all seemed to have handkerchiefs
+tied across their faces, and kept their hats pulled well down, so that
+they could easily have passed close to an acquaintance without much risk
+of discovery.</p>
+
+<p>Of course Andy could tell that they were boys, and not men; and it was
+an easy task for him to guess who two of the party at least must be.</p>
+
+<p>The preparations he and Felix had made were about as simple as anything
+could be. The farm hand possessed an old musket that had been used in
+the Civil war, and which, muzzleloader that it was, had probably brought
+down many a plump rabbit when held in the hands of the owner, as well as
+black ducks in the marshes along the shore of Lake Sunrise.</p>
+
+<p>Besides this, the farmer had loaned Andy his double-barrel Marlin
+shotgun, an old model when compared with the up-to-date hammerless and
+the repeaters, but no doubt a good, serviceable weapon.</p>
+
+<p>Of course they had no idea of trying to pepper the marauders, though it
+would seem as though they richly deserved to be punctured with a few
+small bird shot, because of the meanness of their contemplated action.</p>
+
+<p>To give them a good fright would satisfy Andy, and he had made the eager
+farm hand promise to fire up in the air also because he was afraid lest
+Felix allow his indignation to have full swing, when he saw what the
+four boys meant to do.</p>
+
+<p>They were skulking very close to where the aeroplane lay now, and the
+critical moment had undoubtedly arrived when the surprise must be
+launched.</p>
+
+<p>&quot;Ready, Felix!&quot; he whispered, in the softest of tones.</p>
+
+<p>&quot;Yep!&quot; grunted the farm hand, at his elbow.</p>
+
+<p>&quot;One, two, three! Blaze away!&quot;</p>
+
+<p>With the last word Felix let go with his old musket, into which he must
+have rammed a tremendous charge, for it made a report like unto the
+crash of thunder, and came very near sending the owner flat on his back.</p>
+
+<p>Immediately on the heels of this boom Andy pulled one of the triggers
+of his double-barrel, so that the report seemed almost merged in with
+that of the other weapon.</p>
+
+<p>The four boys had jumped to their feet at the flash and report which
+startled them when Felix fired. And as they turned to dash wildly away
+and that second shot came, they became madly excited, evidently under
+the full belief that they were being made targets for a whole battalion
+of sharpshooters.</p>
+
+<p>Two of them collided, and rolled over on the grass, kicking wildly and
+scrambling to their feet again, to resume their flight toward the fence,
+which doubtless seemed three times as distant as when they were creeping
+toward the stranded aeroplane.</p>
+
+<p>The whole thing was so ridiculous that Andy burst out laughing, and
+could hardly hold his gun; seeing which the farm hand made bold to
+snatch it out of his hands, and aiming directly at the place where the
+fugitives were just then in the act of mounting the fence in their
+panicky flight, he pulled the trigger.</p>
+
+<p>There was a series of loud yells, which would seem to indicate that a
+few of the small shot contained in the shells with which the Marlin had
+been loaded must have reached their mark, and pricked the boys like so
+many needles would have done.</p>
+
+<p>That was the last seen of them, though for a short time they could be
+heard running along the hard road, and exchanging excited comments,
+possibly comparing their injuries.</p>
+
+<p>Then a car was heard to start off with a great deal of bluster, and came
+dashing along past the farmhouse, though those in it bent low enough to
+keep any one from discovering who they might be.</p>
+
+<p>Andy did not know whether to be a little angry or not because of what
+the impetuous Felix had done, but apparently nobody had been seriously
+hurt; and on the whole, the four &quot;sneaks,&quot; as Felix called them,
+deserved some punishment; so he let it go at that.</p>
+
+<p>There was no further alarm that night. Neither of the guardians of the
+hydroplane expected any, after the prompt measures that had been taken
+to inform meddlers of the warm reception they might expect.</p>
+
+<p>All the same, Andy kept up his vigil until sleep almost overpowered him,
+when he aroused Felix to finish out the night.</p>
+
+<p>With the coming of early dawn he knew that the safety of the imperiled
+aeroplane was assured, and that when the horn blew, he and Felix could
+both go in to breakfast. Indeed, he released the farm hand long before
+that time, so that he might go about his usual early morning chores; and
+Andy himself found plenty to do around the machine until summoned to the
+morning meal.</p>
+
+<p>The farmer was a hard sleeper, and had not heard a single thing that had
+taken place; so that he was surprised when told how the enemy had come
+after all, and what measures the boys had taken in order to frighten
+them away.</p>
+
+<p>He even told Felix he could have a day off as soon as the last load of
+hay was in the barn, just to show how he appreciated the bold way in
+which his hired help had tickled the rascals when they were getting over
+the fence. Indeed, the farmer said Andy had been too lenient, and that
+if it had been his aeroplane that was threatened in that mean way, he
+would have felt wholly justified in emptying both barrels of the gun
+after the marauders, first giving them time to get a certain distance
+off, so that no serious results might follow the discharge.</p>
+
+<p>But Andy was never a vindictive lad, and he believed the fellows had
+received sufficient punishment, especially as no one knew exactly what
+they had meant to do in connection with the new hydroplane. Possibly
+Percy only wanted to look it over at close quarters, and knowing he
+would not be allowed to do so if he asked permission outright, sought to
+take this opportunity. But from the way in which they had rigged
+themselves out, so as to avoid being recognized, if seen, it looked as
+though the four boys had something more than that in view.</p>
+
+<p>However, all's well that ends well, and Andy was quite satisfied with
+the way things had turned out.</p>
+
+<p>&quot;Here's hopin' a few of 'em may be limpin' 'round this same mornin', and
+feelin' rayther stiff in the legs,&quot; Felix took occasion to remark, as
+they sat at table, and Andy was again in danger of being foundered by
+the multitude of good things which the farmer's wife spread thereon,
+bacon and eggs, fried potatoes, scrapple, puffy biscuits, apple sauce,
+doughnuts, cold pie, jelly, and finally heaping dishes of light
+pancakes, which were to be smothered in butter and real maple syrup made
+on the farm each early spring when the sap was running.</p>
+
+<p>&quot;I expect Frank will be along any minute now,&quot; Andy remarked, about the
+time he had to firmly refuse a fourth helping of cakes, because he could
+hardly breathe comfortably. &quot;It wouldn't take him long to do what little
+work was necessary, in our shop, which you know my old guardian,
+Colonel Whympers, built for us before we found my father, when he was
+marooned in that valley in South America, a prisoner for many months,
+because the cliffs around prevented him from escaping. And of course
+he'll gallop out here on your saddle horse, Mr. Quackenboss.&quot;</p>
+
+<p>&quot;Well, work ain't got any call on either Felix or me until we see all
+that goes on, that's flat,&quot; remarked the farmer, with a smile, &quot;and it's
+lucky he done the milkin' already, or else the cows'd have to wait long
+after their usual hour, which is a bad way to treat 'em, you know.&quot;</p>
+
+<p>They all went out to the field, even the housewife and little Billie
+wanting to see what a real aeroplane looked like at close quarters. Many
+times had all of them seen the Bird boys, and perhaps Percy Carberry as
+well, soaring aloft as if the upper air currents might be their natural
+heritage; but up to now they had never had the chance to examine one of
+the wonderful machines, and touch the various parts gingerly as though
+afraid of injuring them.</p>
+
+<p>&quot;Beats all what people are a-doing nowadays,&quot; ventured the farmer,
+shaking his head with astonishment, almost awe, as he looked the thing
+over. &quot;They ain't even contented to just fly like a red-tailed hawk, or
+an eagle that kin look the sun direct in the eye; but now they got to
+have a contraption that's at home in the air or on the water; a
+hydroplane you called, it didn't you, Andy? And them ere twin pontoons
+underneath, that look kinder like gondolas, as you say, are made of
+aluminum, and kin hold up the whole affair when you light on water. But
+tell me, how in all creation kin you ever mount up agin, once you settle
+there?&quot;</p>
+
+<p>&quot;Why that's the easiest thing of all,&quot; replied the young aviator;
+&quot;you've watched a wild duck get up many a time, haven't you, Mr.
+Quackenboss; well, we do just the same, only instead of flapping our
+wings, we start the engine, and skim along the surface for a little
+distance, then elevate the planes, and immediately begin to soar upward.
+And it does the stunt as gracefully as anything you ever saw. Some time
+I hope to give you a chance to see how it works. When we leave here, of
+course we'll use the bicycle wheels you see underneath, and run along
+the ground until going fast enough to soar. But I think I see Frank
+coming, away down the road there.&quot;</p>
+
+<p>&quot;That's right,&quot; declared the farmer; &quot;I know my Bob as far as I can see
+him, and his gallop in the bargain.&quot;</p>
+
+<p>Frank was evidently coming at full speed, and Andy presently got the
+idea in his head that his cousin seemed to be strangely in a hurry for
+him. He wondered whether anything could have happened at home, and if
+Frank would prove to be the bearer of bad news.</p>
+
+<p>The other dashed into the narrow road leading from the pike to the barns
+of the Quackenboss farm. Hitching the horse to a post, he started toward
+the spot in the big field where the two boys and the farmer awaited his
+coming, close beside the stranded aeroplane.</p>
+
+<p>Frank was carrying the little part he had expected to knock together at
+the workshop; but as he drew nearer, his chum could readily see that he
+was considerably excited.</p>
+
+<p>&quot;Is everything all right here, Andy?&quot; he called out, even before
+reaching them.</p>
+
+<p>&quot;Yes,&quot; replied the other Bird boy, promptly, &quot;though we did have a call
+from four fellows who had their faces hidden behind handkerchiefs, but
+we fired our guns in the air and nearly frightened them to death. Felix
+grabbed the double-barrel I had, and gave them a last shot when they
+were climbing the fence over there; and we heard some howls too, so I
+guess a few of the Number Eight shot pinked them. But what makes you
+look so bothered, Frank? Has anything happened at home?&quot;</p>
+
+<p>&quot;There sure has,&quot; came from Frank, as he joined them, and cast a pleased
+glance over the flying machine that lay upon the grass like a huge bat,
+with wings extended.</p>
+
+<p>&quot;Tell me what it was?&quot; demanded Andy, breathlessly.</p>
+
+<p>&quot;Somebody broke into our hangar and workshop, and knocked things around
+at a great rate,&quot; Frank went on to say. &quot;Acted like they might be just
+mad because they didn't find our new machine there, and wanted to show
+their spite. And nobody in your house knew a thing about it till I came
+along, after an early breakfast, meaning to get the piece I'd been
+working on up to eleven last night, when I went home to sleep, and
+locked up the place as usual.&quot;</p>
+
+<p>&quot;That's a queer piece of news you're telling me, Frank,&quot; said the other,
+looking puzzled, as well he might.</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_IV"></a><h2>CHAPTER IV</h2>
+<br>
+
+<p>THE STARTLING NEWS</p>
+
+<p>&quot;Well,&quot; said Frank, with a frown on his face. &quot;It's puzzled me a whole
+lot, let me tell you, Andy. Because, of course, my first thought was
+that it must have been Percy Carberry's work; but now that you tell me
+he was here, and knew we hadn't fetched our hydroplane home, I hardly
+know what to think.&quot;</p>
+
+<p>&quot;Did you say you worked till about eleven at the shop?&quot; asked Andy,
+quickly.</p>
+
+<p>&quot;Three minutes after when I quit, locked up, and went home,&quot; Frank
+replied.</p>
+
+<p>&quot;That was just about the time they showed up here,&quot; the other went on to
+say. &quot;Unless one of us is wrong about the time, they couldn't well be in
+two places at the same minute, now, could they? Seems like it might have
+been some other crowd that broke into our hangar, Frank!&quot;</p>
+
+<p>&quot;But why? Did they want to play fast and loose with our machine, and
+force an entrance just for that purpose? Listen to something I'm going
+to tell you, Andy. I found several things on our work bench where
+somebody had left them, without meaning to do it, I guess. Here's one.&quot;</p>
+
+<p>Frank while saying this held something up which he had taken from the
+package he carried under his arm.</p>
+
+<p>&quot;Why, that's a splendid electric torch, looks like to me?&quot; exclaimed
+Andy.</p>
+
+<p>&quot;Just what it is, now,&quot; the other agreed.</p>
+
+<p>&quot;And it was forgotten in our shop, was it?&quot; demanded Andy.</p>
+
+<p>&quot;I made out that whoever entered used this first, and then lighted our
+lamp to look around with, putting out the torch, and laying it down.
+When they skipped out, why, they just forgot all about it, also these.&quot;</p>
+
+<p>Again did Frank make a dive into his pocket, and dangled something
+before the astonished eyes of his cousin.</p>
+
+<p>&quot;Great Caesar! what d'ye call those things?&quot; gasped Andy, staring as
+though hardly able to believe his eyes.</p>
+
+<p>&quot;Well, as near as I can make out, they're a couple of half masks made
+out of black muslin, and just like a domino worn at a masquerade ball.&quot;
+Frank remarked, with positive conviction in his voice and manner.</p>
+
+<p>&quot;Masks?&quot; echoed the other; &quot;and the fellows who broke open our shop wore
+them, did they? Well, the crowd that came out here seemed to be
+satisfied to tie handkerchiefs across their faces, and pull their hats
+down.&quot;</p>
+
+<p>&quot;I don't know that they wore them,&quot; Frank went on, &quot;but they had the
+things along and laid them down with the lantern, forgetting the whole
+lot when they cleared out. Perhaps your dog got to barking and
+frightened them off before they found a chance to do much damage.&quot;</p>
+
+<p>&quot;A regular bullseye electric torch, and black masks like cracksmen
+use&mdash;say, tell me, Frank, what's coming over our quiet country up here
+lately? There was the affair over in a neighboring town, when yeggmen
+broke into the bank, and robbed it; and now here you tell me we've had a
+little smash-up on our own account, with the burglars leaving cards
+behind them. But what d'ye think now anybody would want to go poking
+around in our shop for, Frank?&quot;</p>
+
+<p>His cousin was looking very grave.</p>
+
+<p>&quot;Well, you forget that we've been working overtime this winter on
+several little inventions that, if we ever complete them, will make a
+stir in the world of aviation.&quot;</p>
+
+<p>&quot;Jupiter, I had let that slip away from me, for a fact, Frank!&quot;
+exclaimed the other, looking rather startled.</p>
+
+<p>&quot;Of course, it sounds pretty big for us to even imagine that any party
+could take enough interest in what the Bird boys are doing to come up
+here, intending to break into the shop, and learn our secrets; but what
+else can we think, tell me that, Andy?&quot;</p>
+
+<p>&quot;But they wouldn't find out much, even if they had six hours to poke
+around our shop in, would they, Frank?&quot;</p>
+
+<p>&quot;I guess you're right, because we've made it a rule to be cautious
+enough to hide our work and cover our tracks as we go along. But let's
+get busy now, and put the plane into shape, so we can slip along home.
+And as we work we can keep on talking as much as we want to,&quot; Frank went
+on to say.</p>
+
+<p>The farmer and Felix still loitered around, determined to see the
+wonderful contrivance make a start, and expecting the greatest treat of
+their lives, when that event occurred.</p>
+
+<p>Such experienced workers as the two Bird boys had now become would find
+little or no trouble about carrying out the work they had on hand. Every
+steel wire guy was kept as taut as a fiddle string; and by the time they
+were done handling the aeroplane it would be in apple-pie shape for
+work.</p>
+
+<p>&quot;Did they smash much in the shop, Frank?&quot; Andy asked after they had
+been working some little time, and making fair progress.</p>
+
+<p>&quot;Why, no, it didn't seem to me that they took the time to do great
+damage; and that's why I fancy they were scared off, somehow or other.
+They went in a hurry, or else they would never have forgotten those
+things. And when I looked around I made up my mind that they were just
+mad because they didn't find our machine at home, and so tried to let us
+know that fact.&quot;</p>
+
+<p>&quot;Perhaps it was a second detachment of the same crowd that came out
+here?&quot; suggested Andy, speculatively.</p>
+
+<p>&quot;Tell me, what would they be doing with electric torches, and black
+masks? Now, you can see that these have been pretty well used; they're
+not new ones just cut out by pattern at home with mother's scissors.
+These have been made by an experienced operator, and were bought either
+for a mask ball or some other purpose.&quot;</p>
+
+<p>&quot;Well, perhaps we'll never know the truth about it,&quot; grumbled Andy, who
+never liked anything to puzzle him and would lie awake half the night
+trying to find the answer to a conundrum that had been offered to him by
+a boy friend.</p>
+
+<p>&quot;Oh! yes, I've got a hunch that we will,&quot; chirped his cousin, with a
+sublime confidence that quite won Andy's heart; if he could not see any
+good reason for hope himself, the fact that his chum pinned his faith on
+it was enough to bolster up his own courage.</p>
+
+<p>Meanwhile they were both as busy as bees, and the work was approaching
+completion.</p>
+
+<p>&quot;What are you looking up every little while that way for?&quot; Frank asked,
+after noticing that Andy cocked his eye upward several times, and
+appeared to be scanning the heavens in an expectant manner; &quot;the day is
+all right, so far as wind goes, and we ought to get along home without a
+bit of trouble.&quot;</p>
+
+<p>&quot;Oh! I wasn't bothering my head about that part of it,&quot; the other
+replied, with a scornful smile. &quot;We've been out in all sorts of weather;
+and now that we have a chance to try this new invention of the Wrights',
+that makes it next to impossible to tilt an aeroplane over no matter how
+you move around when up in the air, we can feel safer than ever. Even a
+fool would be kept from meeting with an accident when protected by that
+wonderful balancing bar that responds to the slightest movement of the
+human body.&quot;</p>
+
+<p>&quot;Then it was something else you had on your mind, was it, Andy?&quot;</p>
+
+<p>&quot;Well, I was wondering just what took Percy and Sandy out at daybreak
+this morning, that's all,&quot; replied the other.</p>
+
+<p>&quot;What's that? Did you see them pass over in their biplane this morning?&quot;
+demanded the other.</p>
+
+<p>&quot;Felix woke me up at dawn to tell me there was a queer chugging
+overhead, that sort of scared him. I jumped up, because of course I knew
+what that must mean. And sure enough I was just in time to see a biplane
+pass over at a good height, and head up the lake. I lost it back of the
+barn, because a flock of crows came flying along, stretching out for a
+mile or two; and among the lot I couldn't make out just what was biplane
+and which was crow. It was pretty high up, too, I thought.&quot;</p>
+
+<p>&quot;But you made sure it was Percy's biplane?&quot; asked Frank, interested
+somewhat, for somehow the other rival flier was always doing such bold
+stunts that he could not help feeling as though it might pay to keep
+track of what he was doing, lest their interests clash unexpectedly, in
+midair perhaps.</p>
+
+<p>&quot;I ought to know the way it glides, and the whole general look; and I'd
+be willing to take my affidavy that was the Canvas-back, as he calls
+his biplane.&quot;</p>
+
+<p>&quot;And he was in it, of course, with Sandy too?&quot; Frank went on.</p>
+
+<p>&quot;I could just make out that there were two aboard,&quot; said Andy, &quot;but
+somehow it seemed to me that Percy had altered his whole way of piloting
+his airship, or else he was drunk, and hardly knew what he was doing.&quot;</p>
+
+<p>Frank whistled to indicate his surprise and consternation:</p>
+
+<p>&quot;When it gets as rough as that you can take it from me that Percy's
+mother will hear something simply awful about him before long. He's
+bound to go from bad to worse; and everybody knows what the end of such
+an aviator is going to be.&quot;</p>
+
+<p>&quot;But what under the sun could he be off at daylight this morning for?&quot;
+Andy went on to remark, as though that thing had been bothering him ever
+since the moment he lost track of the biplane among the teetering,
+cawing crows.</p>
+
+<p>Frank shrugged his shoulders as he replied:</p>
+
+<p>&quot;Did you ever know any reason for half the things Percy does? He just
+acts from a sudden impulse. Remember all that happened when he followed
+us down there to Columbia in South America, and tried to give us all the
+trouble he could make up. And there have been lots of other times too,
+we can look back at, all of which prove what I am saying that he is
+often like a ship without a rudder. Now, perhaps, he's got the crazy
+notion in his head that we might prosecute him either for what he tried
+to do up here to our hydroplane, or on account of breaking into our
+hangar, and doing a certain amount of damage, if the vandal was Percy
+Carberry.&quot;</p>
+
+<p>&quot;That sounds a little reasonable, anyhow, Frank. Queer that I never seem
+to get hold of these things, and they just float along as easy as
+anything to you. But it looks as if we had her all primed up now as
+steady as a church. How about it, Frank?&quot;</p>
+
+<p>For answer the other touched several taut wire guys with a peculiar
+little movement of finger and thumb, and each one responded with a
+musical note that was the sweetest possible sound in the responsive ear
+of the young aviators.</p>
+
+<p>&quot;All done, and let's be off,&quot; he said, presently, after the last test
+had been applied.</p>
+
+<p>Accordingly they shook hands with Farmer Quackenboss, his good wife, and
+Felix, in the palm of which latter Andy made sure to leave a greenback
+that made the boy grin broadly.</p>
+
+<p>Three minutes later Frank sang out the word, and both the farmer and
+Felix ran along with the machine for a dozen paces or so, when it left
+them behind, taking on speed, and finally rushing over the ground at a
+tremendous pace.</p>
+
+<p>Uptilting the planes caused it to leave the ground and start to curve
+gracefully upward, as the whizzing propeller did its noisy duty.</p>
+
+<p>They could hear the farmer and his hired hand shouting themselves hoarse
+with delight at having actually witnessed the start of a modern
+aeroplane; but naturally the sound grew fainter and fainter in their
+ears as they left the field and the squatty farmhouse far behind.</p>
+
+<p>Having arisen to the height of several hundred feet, Frank headed toward
+Bloomsbury. Like a true and alert pilot he was watching and listening to
+ascertain how their recent work held; and presently a satisfied
+expression crossing his face announced that he found his faith well
+justified.</p>
+
+<p>They had skimmed along for perhaps a mile or more when Andy made a
+certain discovery that caused him to call out.</p>
+
+<p>&quot;Look along the road below and ahead, Frank,&quot; he said, &quot;and you'll see
+something that makes you think of old times, when we hunted, in company
+with Chief Waller, for those men who looted Leffingwell's jewelry
+establishment.&quot;</p>
+
+<p>&quot;Why, as sure as you're born, Andy, it does look like the Chief; and
+he's sitting in a vehicle, waving his hat. He seems to be looking up at
+us, and now that I've turned off the motor to glide a little I can hear
+him shouting.&quot;</p>
+
+<p>&quot;Frank, do you think he's just saluting us, or does he want us to come
+down?&quot; demanded Andy, in some apprehension.</p>
+
+<p>&quot;Now he's making all sorts of gestures, and honestly I think he means
+that he wants to see us. Had we better drop in that open field just
+alongside the road? Looks good to me for a rise when we want to start
+again.&quot;</p>
+
+<p>&quot;Whatever you think best, Frank; I'm always willing to be guided by you.
+Mighty seldom you make a bad mess of it, while I often do. Yes, let's
+drop down, and if the field turns out to be pretty smooth, we'll land.&quot;</p>
+
+<p>Accordingly, the hydroplane which was of course now in a condition for
+making a landing with the wheels below the aluminum pontoons, circled
+around, dropping lower and lower, until presently it came to a stop in
+the field close to the fence.</p>
+
+<p>When it landed it was done so beautifully that, as Andy enthusiastically
+said, an egg would hardly have broken had it come between. And there,
+not more than twenty feet away, the man, dressed in a blue uniform and
+wearing a silver shield with the words &quot;Chief of Police&quot; engraved upon
+it, was soothing his horse, which had apparently been badly frightened
+by the swooping down of what seemed to be a great roc, or some other
+species of now extinct gigantic kings of the air.</p>
+
+<p>&quot;What's up, Chief?&quot; asked Frank, as soon as they had reached the road
+together.</p>
+
+<p>&quot;Then you haven't heard the terrible news; they told me you left home to
+come up here about daybreak; and we didn't find it out until an hour
+ago. The bank in Bloomsbury was broken open last night, the safe rifled,
+and the thieves have disappeared in the queerest way ever heard of, for
+they left no trace behind. And when I saw you boys aloft, I was in hopes
+you might have seen something of the bank looters.&quot;</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_V"></a><h2>CHAPTER V</h2>
+<br>
+
+<p>THE EXCITEMENT GROWS</p>
+
+<p>&quot;Well, what d'ye think of that for news, eh, Frank?&quot; burst out Andy, in
+his usual impetuous way, after the Bloomsbury Chief of Police had made
+this startling announcement.</p>
+
+<p>Frank was as a rule much cooler than his cousin. He had undoubtedly been
+equally astounded to hear of the terrible calamity that had befallen the
+banking institution, in which most of the leading citizens of the town
+were financially interested; but he certainly did not show it the same
+way.</p>
+
+<p>His eyebrows went up to indicate astonishment; and a slight frown
+settled on his grave face, as he replied to Andy's question.</p>
+
+<p>&quot;It's a stunner, just as you say, Andy; but I wish the Chief would tell
+us a few more details. I think it's a little queer nobody seemed to have
+any suspicion of this awful business at the time I left home on
+horseback, to ride up to the Quackenboss farm, where you had been
+watching our injured aeroplane all night.&quot;</p>
+
+<p>&quot;Well,&quot; continued the head of the Bloomsbury police force; &quot;that's
+because the yeggs worked so neatly they never left a bit of mess around
+to arouse suspicion; and the first thing that was known of the looting
+of the bank was when Seth Jarvie, the day watchman, went into the place
+at seven this morning to relieve Cadger, the night man, and found him
+lying there, tied up like a bundle of goods, and nearly dead with fright
+and humiliation.&quot;</p>
+
+<p>&quot;Whew!&quot; was the way Andy relieved his pent-up feelings at this point;
+while his cousin went on asking questions.</p>
+
+<p>&quot;Then Cadger must have seen the robbers, if they captured him; how about
+that, Chief?&quot; he demanded, eagerly; for the excitement was beginning to
+take hold of him.</p>
+
+<p>&quot;That's right, he did, and was able to give us more or less
+information,&quot; the police officer continued. &quot;Of course as soon as Jarvie
+saw what had happened he knew it was a case for me to handle, and so he
+ran across to Headquarters; and in a jiffy we had thrown a cordon of
+police around the building to keep out the curious citizens who would
+have no business inside, and spoil any trace of the rascals.&quot;</p>
+
+<p>&quot;And would you mind telling us what Cadger had to tell, Chief?&quot; asked
+Frank.</p>
+
+<p>&quot;Not at all, because I'm depending on you boys to help run the thieves
+down, if you feel like giving the authorities any assistance,&quot; the other
+replied, craftily.</p>
+
+<p>Frank's answer was immediate and to the point.</p>
+
+<p>&quot;Of course we'll do anything that's in our power, Chief. Both our
+fathers are interested in that bank; and besides, the good name of the
+town must suffer if it is wrecked by a wandering band of yeggmen. And we
+can understand why you should want to capture the thieves, Chief;
+because that's a part of your business. Please tell us what the bank
+watchman had to say.&quot;</p>
+
+<p>&quot;Then I will, and without any frills, if I can make it that way,&quot;
+returned the other earnestly. &quot;Cadger says he was caught napping, not
+that he was asleep; but never dreaming of any danger, he stepped over to
+the door when he heard a knock and a voice said: 'It's me, Cadger, Mr.
+Hedden, the cashier; I forgot some important papers, and have gotten out
+of bed to come back for them. Let me in without attracting any
+attention, if you can.'&quot;</p>
+
+<p>&quot;What do you think of the smartness of that?&quot; exclaimed Andy. &quot;And so of
+course poor old Cadger, who is as honest as the day is long, never
+suspected any trick, but went and opened the door a crack?&quot;</p>
+
+<p>&quot;Just what he did,&quot; returned the Chief, &quot;and as that side of the bank
+was in the shadow he could only see the figure of a man, who slipped in
+alongside him. Before he knew what was happening he was being chocked by
+a pair of strong hands. Cadger started to struggle but another man must
+have joined the first, for he was knocked unconscious by a cruel blow,
+that's left his face all bloody and after that he didn't know a thing
+for an hour or two.&quot;</p>
+
+<p>&quot;Whee! you've got me all worked up with your story, Chief,&quot; said Andy
+again. &quot;I can just seem to see the whole thing happening. And chances
+are, that when Cadger did come to, he found himself tied up, and unable
+to even whisper?&quot;</p>
+
+<p>&quot;He had hard work to get enough breath, they had fastened the bandage
+across his mouth so tight; but he could see out of one eye. And lying
+there, Cadger watched the two yeggs go through the whole operation of
+getting nitroglycerine planted, and using all sorts of clothes and even
+the rugs off the floor of the president's room to deaden the sound of
+the explosion.&quot;</p>
+
+<p>&quot;They were old hands at the business, that's sure,&quot; remarked Frank, when
+the officer paused to catch his breath; for he was talking unusually
+fast in his desire to give them all the particulars in as brief a space
+of time as possible.</p>
+
+<p>&quot;Yes, there can be no doubt of that,&quot; the Chief went on to say, wagging
+his head wisely; &quot;and they had been able in some way to get on to a lot
+of things that make us wonder like the name of the cashier and the
+night-watchman. Looks mighty much like they must have had a friend
+around Bloomsbury, who put them wise to those facts. Then they seemed to
+have the running of the trains down pat also; for long after they had
+their arrangements made they just sat down and waited until the freight
+going north and passing Bloomsbury at two-eighteen was pounding up-grade
+from Deering's Crossing, and making all manner of noise.&quot;</p>
+
+<p>&quot;Oh! to think of the smartness of that, would you?&quot; burst out Andy. &quot;I
+was wondering how they could blow open the safe, and the sound of the
+explosion never even be heard over at Headquarters, only half a block
+away; but now I see how it could be done. Just like a fellow says he can
+pull a hair out of your head, and you not feel it; and he makes out to
+give you a thump on the head with his other hand at the same time, so of
+course you never notice him pulling the hair.&quot;</p>
+
+<p>&quot;Just about on the same principle,&quot; said the officer, nodding; &quot;for
+when that heavy freight goes pounding past the station, it makes enough
+noise to drown almost any sort of sound. The windows rattle, and we
+always have to stop talking until the caboose gets past. And that was
+the time they chose to explode their juice, with an absolute certainty
+that no policeman's ear would hear a single thing.&quot;</p>
+
+<p>&quot;And Cadger saw it all, did he?&quot; asked practical Frank.</p>
+
+<p>&quot;A good lot of it, by twisting his head from time to time,&quot; replied
+Chief Waller. &quot;And after the thing had been successfully done, he could
+watch the two thieves gathering the swag together, and putting it in a
+satchel they found in the cashier's room. Then, just at a quarter to
+three they doused the glim, which was only an electric torch one of them
+carried, and skipped out, locking the door on poor Cadger. It was hours
+afterwards when the day watchman came on duty and the discovery
+followed.&quot;</p>
+
+<p>Frank and Andy had somehow turned, and exchanged a significant look
+about this time; and the expression of astonishment on the face of the
+latter deepened.</p>
+
+<p>&quot;Did you say an electric torch, Chief?&quot; demanded Frank, immediately.</p>
+
+<p>&quot;Yes, one of the handy kind that are used so commonly now,&quot; the other
+replied.</p>
+
+<p>&quot;Tell us, did Cadger say anything about the thieves wearing masks over
+their faces; or did they use handkerchiefs to hide them from him?&quot;</p>
+
+<p>&quot;I didn't mention that matter, but it was just as you say, Frank; both
+men had on masks all the time,&quot; answered the police officer.</p>
+
+<p>&quot;Black ones too, I expect?&quot; ventured Andy.</p>
+
+<p>&quot;That's what they were; but see here, are you two just guessing this, or
+do you happen to know something about those men?&quot; asked the other,
+quickly; for he could not help seeing from the manner of the Bird boys
+that they were on some sort of a scent; and he knew from past
+experiences that their sagacity could always be trusted to do the right
+thing.</p>
+
+<p>&quot;Well,&quot; Frank went on to say, drily, &quot;while Andy was watching our new
+hydroplane out in the Quackenboss pasture, I worked until eleven o'clock
+in our shop, and then went home. This morning, early, after a bite to
+eat, I hurried over there to do some finishing touches and carry the
+thing out to apply to our broken plane, when to my astonishment I found
+that the shop had been broken into later in the night, as well as our
+hangar, where the aeroplane is usually kept. And here's what I
+discovered lying on the work-bench, where the men had forgotten them.&quot;</p>
+
+<p>With these words he held up the flashlight torch, and the twin black
+masks; and they produced an immediate shock upon the Chief of Police.</p>
+
+<p>&quot;And you found those things in your workshop this morning, you say?&quot;
+he cried, reaching out to take hold of the torch, and the bits of black
+muslin.</p>
+
+<p>&quot;Yes, and whoever was there, they must have been mad because they didn't
+find the aeroplane, for they smashed a few things, just for spite, it
+looked like,&quot; was what Frank added.</p>
+
+<p>&quot;Then, if it was the same men who robbed the bank they must have known
+about you boys having a brand new machine. And say, that must mean one
+of the robbers was something of a birdman himself; because no greenhorn
+would ever think of making his getaway in an aeroplane. Don't you see
+that's a pretty good clue, Frank? I'll remember that when I'm getting in
+touch with other points, and find out if there's any aviator who's gone
+crooked of late. Yes, that's worth knowing, now; and I'm glad you
+mentioned it to me.&quot;</p>
+
+<p>&quot;What description did Cadger give of the men, Chief?&quot; queried Frank.</p>
+
+<p>&quot;Oh! he said one was tall and thin; and the other short and wiry like,
+pretty much like a cat. I rather reckon he'd be the fellow who's been in
+the flying business. Seemed to have a stiff left arm too, like he'd met
+up with some sort of an accident. That might turn out to be a pointer;
+I'll just remember it. It surely was a lucky thing for me I saw you boys
+come sailing along and managed to attract your attention. I begin to
+feel better already. You gave me so much help on that other occasion, it
+just seems as if I had to fall back on you again.&quot;</p>
+
+<p>&quot;Better move your horse out of the way, Chief, because there comes a car
+at a licketty-split racing speed. Wonder what the fellows in it are
+thinking about, to take such chances. Why, hello! look there, Frank,
+perhaps you know the one who's at the wheel? Seems to me I've seen him
+before, and that his name is Percy Carberry.&quot;</p>
+
+<p>&quot;It is Percy,&quot; said Frank, &quot;and alongside him who'd you expect to see
+but his shadow, Sandy Hollingshead? And they look some excited too, as
+though they'd heard about the robbery, and the Carberry family was
+threatened with bankruptcy if the missing funds were not recovered right
+away. There, he sees us, and is pulling up. I reckon he's looking for
+you, Chief.&quot;</p>
+
+<p>The car that had been tearing along the pike came to a stop close to
+where the head of the Bloomsbury police force sat in his buggy.</p>
+
+<p>Percy Carberry got out, and Andy could not but notice that he was not
+displaying his accustomed agility on this fine morning; indeed, he made
+a face as though it gave him a stab of pain every time he took a step.</p>
+
+<p>&quot;Hello! Chief Waller!&quot; remarked Percy in his customary patronizing way,
+ignoring the presence of the Bird boys completely and purposely, of
+course; &quot;I've come out after you, to get your assistance in trying to
+find the rascals who broke into my hangar some time last night, and ran
+away with my biplane!&quot;</p>
+
+<p>Upon hearing these astonishing words it was little wonder that Andy and
+Frank once more looked at each other, with the light of understanding
+dawning on their faces.</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_VI"></a><h2>CHAPTER VI</h2>
+<br>
+
+<p>FIGURING IT ALL OUT</p>
+
+<p>&quot;That's a strange story you're telling us, Percy,&quot; said the Head of the
+local police force, at which the boy bridled up immediately.</p>
+
+<p>&quot;I don't see what there is so funny about it, Chief!&quot; he exclaimed,
+frowning. &quot;I tell you my hangar was broken open last night, and I'm out
+a biplane that cost me a good round sum. It's up to you to get on the
+track of the same, and recover it. I hereby offer a reward of three
+hundred dollars for the recovery of my machine uninjured, and make it
+five hundred if the thief is captured in the bargain.&quot;</p>
+
+<p>When he said this Percy assumed all the airs of a millionaire; but then
+it was well known about Bloomsbury that the Widow Carberry was very
+wealthy; also that her only hopeful could wheedle her in to settling any
+sort of a bill he chose to contract, so that the mention of the sum of
+five hundred dollars was not anything extravagant for Percy.</p>
+
+<p>&quot;Oh! it wasn't that I doubted your word at all, Percy; don't think
+that,&quot; Chief Waller hastened to say; for like most men he was ready to
+bow down in front of the golden calf; and more than once Mrs. Carberry
+had been very generous to the force&mdash;when her house took fire and came
+near burning, but was saved, thanks to the energetic work of police and
+fire departments; and again, when a hired man tried to carry off some of
+her jewelry, but had been easily caught, and the plunder restored.</p>
+
+<p>&quot;Then what makes you act like that, I'd like to know?&quot; demanded Percy,
+looking very much put out, as though he did not like to be treated with
+suspicion, especially when his old-time rivals, the Bird boys, were
+around.</p>
+
+<p>&quot;Why,&quot; the officer went on to say, &quot;when you said that about your
+aeroplane being taken, it struck me all in a heap; because Frank here
+was just telling me that two men broke into his shop last night after
+eleven, and knocked things around, just because they failed to find his
+hydroplane in its bunk as usual. They wanted that machine, and wanted it
+so bad, that, as a last resort, they went over to your place, and
+confiscated your biplane.&quot;</p>
+
+<p>It was Percy's turn now to look astonished. He even condescended to
+notice the presence of the two Bird boys, and surveyed them with
+interest.</p>
+
+<p>&quot;Is that a fact, Frank? Did somebody break into your place last night?
+I remember now that I did see you pottering about your craft up there
+somewhere about the Quackenboss place, but I'd forgotten it till the
+Chief mentioned that you didn't have it in the hangar. That's the time
+you were lucky. See what I got for having mine at home all snug and
+nice. It's been hooked clear as anything, and not a trace to tell who
+did the business.&quot;</p>
+
+<p>&quot;Hold on there, Percy,&quot; said the Chief, with a broad smile, &quot;perhaps it
+isn't such a deep mystery after all.&quot;</p>
+
+<p>&quot;Tell me what you mean when you say that,&quot; demanded the boy, loftily, as
+though he resented the fact that anything should be kept from him a
+single second.</p>
+
+<p>&quot;Why, Frank and Andy found these things in their shop, left by the two
+men who tried to get their hydroplane; and the chances are ten to one
+the same parties went right straight over to your place and got yours as
+a second choice.&quot;</p>
+
+<p>&quot;I don't like the way you speak of my biplane, Chief, which cost ever so
+much more money than the contraption the Bird boys own,&quot; Percy remarked,
+sneeringly; &quot;but never mind, tell me what these things stand for. An
+electric torch and&mdash;why those things look like black masks. Great
+Caesar! and the Bloomsbury bank was robbed last night, they told me when
+I was rushing around looking for you. See here, do you think the yeggs
+who did that neat job got away with my biplane?&quot;</p>
+
+<p>Percy was getting more excited than ever now. When he did, he seemed to
+just foam a little at the corners of his mouth, his eyes glittered, and
+his face turned red.</p>
+
+<p>&quot;There seems to be no doubt of it,&quot; replied the Chief, calmly, and yet
+with a stiffening of his figure, as though conscious of having already
+discovered a most promising clue, that could not but reflect credit on
+his astuteness as an officer of the law.</p>
+
+<p>&quot;They knew all about Frank's machine and mine too, then?&quot; continued
+Percy, still grappling with the tremendous problem.</p>
+
+<p>&quot;Looks that way,&quot; the official went on to remark, &quot;and makes me think
+more than ever that they must have a friend right here in Bloomsbury who
+put them wise to lots of things. Time'll tell that. But I don't suppose
+you found anything around your place like Frank did, to tell that some
+strangers had been there while you slept?&quot;</p>
+
+<p>&quot;Not a blessed thing; though, to tell the honest truth, I didn't hang
+around long when I found my biplane was gone. It was the best machine I
+ever owned, and as you know I've had several, all told. And inside of
+three days I expected that the latest model of aluminum pontoons would
+be along, to turn it into a water as well as an air craft. Now chances
+are, I'll never see it again, because, like as not, nobody knows which
+way in creation they went.&quot;</p>
+
+<p>&quot;We happen to have a pointer about that same thing,&quot; Andy could not help
+saying, though he hardly liked the superior air of the other, not being
+able to overlook such things as easily as his cousin did.</p>
+
+<p>&quot;I hope, then, you'll give it to the Chief, Andy,&quot; the Carberry boy
+remarked, for the first time directly speaking to one of the cousins.</p>
+
+<p>&quot;Sure thing. We want to see the rascals copped just as much as anybody
+does. You see, Felix, he's the farm hand up at Mr. Quackenboss' place,
+and me, we thought it good policy to stay around, and keep an eye on our
+machine while it was lying overnight in that meadow. I had had a long
+watch of it, and was taking my turn at sleeping when just at daybreak
+Felix shook me, and said there was a queer noise up aloft that kind of
+scared him, and which he rather believed must come from some sort of
+air craft.</p>
+
+<p>&quot;Oh!&quot; exclaimed Percy, looking intensely interested, of course; &quot;go on,
+please.&quot;</p>
+
+<p>&quot;I jumped up, and sure enough I glimpsed a biplane passing over, and
+headed up the lake at a pretty good height, I thought it looked like
+your machine, but as I remarked to Frank later on, whoever steered it
+had a different way about him from your method. While I was wondering
+what took you out so early, and I could see there were two in the
+machine, a big flock of crows passed over, and I lost track of it.</p>
+
+<p>&quot;So, you see, Percy,&quot; broke in the eager Chief just at that point,
+&quot;we've got a pretty good clue already about the direction the rascals
+took, who broke into the safe of the bank, and carried off a bagful of
+money, and valuable papers; and then followed that up by cribbing your
+biplane. It was north they went, up the lake, in fact; and that's the
+quarter we'll have to look for them. But let me tell you it's putting it
+pretty hard over on a police officer to make him try to track a stolen
+flying machine.&quot;</p>
+
+<p>&quot;But you can get in touch with every town to the north, and pick up
+pointers here and there!&quot; Percy declared, excitedly. &quot;Get back to town
+as fast as you can, Chief, and with a couple of your men I'll carry you
+wherever you want to go. In the meanwhile, you can leave orders for your
+men to do the wiring business; and whenever we strike a town we can ring
+up Headquarters over the 'phone, and learn what news they've managed to
+pick up.&quot;</p>
+
+<p>Percy seemed to think that all he had to do was to tell the Chief what
+he wanted; but then his plan of campaign was really a good one, and the
+police officer was wise enough not to quarrel with his bread and butter;
+for the Widow Carberry was a large property owner in Bloomsbury.</p>
+
+<p>&quot;You just take the words out of my mouth seems like it,&quot; he remarked;
+&quot;and that is the best plan we could carry out. I was just going to
+suggest to Frank and Andy here, that if they felt like taking a little
+spin off to the northward this fine morning, and discovered anything
+suspicious, they could get word to us, perhaps through the Bloomsbury
+Central, for we'll be apt to keep in touch with home.&quot;</p>
+
+<p>Percy did not know whether to look pleased at this suggestion or not. It
+would be just like the everlasting luck of the Bird boys to make another
+remarkable success out of this thing, for they seemed to have a failing
+that way, while all the hard fortune came in his direction. That would
+give him a pain to be sure, for he was horribly envious of their local
+fame as successful aviators; but at the same time he hated to lose that
+beautiful biplane, which he had not owned very long, and which had taken
+his heart by storm.</p>
+
+<p>So Percy finally compromised, as he frequently did. He even forced a
+grim smile to appear upon his face, though it did not deceive Frank in
+the least; and as for Andy, he never took the least stock in Percy
+Carberry's honesty. In his mind there was always a deep meaning
+underneath every action of the other.</p>
+
+<p>&quot;Why, sure I hope Frank will discover the thieves, and recover the stuff
+they've grabbed from the bank; also that he'll have the good luck to get
+back my biplane without its being badly wrecked. That reward is worth
+trying for, and I don't go back on my word.&quot;</p>
+
+<p>All the same he knew very well that neither of the Bird boys could be
+forced to ever accept one penny from his hand, no matter what good Dame
+Fortune allowed them to do for him.</p>
+
+<p>Andy was watching keenly when the Carberry boy walked back to his
+machine, and climbed into the steering seat. Frank, happening to look
+that way, saw his cousin's face lighted up as if in glee: and he even
+heard him chuckle. Perhaps Percy may have caught the same sound, for he
+turned his head after dropping down into his seat, and scowled darkly at
+Andy. There is nothing like a guilty conscience to bring about a
+self-betrayal; and somehow Percy seemed to know what the Bird boy was
+thinking about just then.</p>
+
+<p>At any rate, he was an adept at the pilot wheel of a car, though
+inclined to be a reckless driver; just as he was also a daring air
+voyager, taking desperate chances that promised to bring him to grief
+one of these days.</p>
+
+<p>Backing the car swiftly around, he sped away. Sandy Hollingshead, who
+had not once moved from his seat, or uttered a single word all the time,
+turned his head to look back; and Andy thought he too scowled darkly, as
+though stirred by unpleasant thoughts; but in another minute they had
+vanished around the bend far along the pike, and the Chief alone was
+seen, whipping up his nag, in the endeavor to get back as speedily as
+possible to Headquarters.</p>
+
+<p>&quot;Well, of all things, don't this just take the cake?&quot; remarked Andy,
+when he and his cousin once more found themselves alone beside the
+motionless aeroplane, that nestled like a great bird on the grass close
+to the road.</p>
+
+<p>&quot;It certainly looks as though we might be in for a little more
+excitement,&quot; replied Frank; &quot;but what seemed to make you chuckle so
+much, Andy? You must have noticed something that escaped my attention,
+because I was busy thinking of other things. Suppose you open up, and
+tell me?&quot;</p>
+
+<p>&quot;I was tickled half to death to see how Percy tried to walk, as if
+nothing was the matter with him, when all the time he couldn't keep from
+limping; because, don't you see, one or several of those bird-shot Felix
+scattered around last night, must have stung him about the legs. That's
+why he scowled so at me, Frank!&quot;</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_VII"></a><h2>CHAPTER VII</h2>
+<br>
+
+<p>THE AIR SCOUTS</p>
+
+<p>Frank laughed a little, himself, when he heard his cousin say this.</p>
+
+<p>&quot;I give you credit for getting one on me there, Andy,&quot; he declared.</p>
+
+<p>&quot;Then you believe I hit the right nail on the head, do you, Frank?&quot;</p>
+
+<p>&quot;Well,&quot; remarked the other, &quot;come to think of it, Percy did have a
+little limp; and I guess he tried to hide it the best he could, for I
+remember seeing him wince several times. But how about Sandy, who never
+tried to get out of the car once, and didn't even open his lips to say a
+single word?&quot;</p>
+
+<p>&quot;I bet you he got a double dose, and is pretty sore this morning.&quot; Andy
+went on. &quot;You seemed to think it was kind of hard lines for Felix to
+give 'em a load when they were pretty far off, and just climbing over
+that fence; but it tickles me every time I think of it. Seemed like the
+whole bunch just fell over after he shot; and like as not each fellow
+got his share of the Number Eights somewhere in his legs. But how about
+this job the Chief asked us to engineer, Frank? Are we going to start
+off on that little spin up the lake; and d'ye guess we could get a
+pointer about where the two thieves have gone?&quot;</p>
+
+<p>&quot;We might try, anyhow; no harm in that,&quot; was his cousin's reply, as he
+turned once more toward the hydroplane that lay near by.</p>
+
+<p>&quot;I remember we had great luck that other time, when we discovered that
+the men who broke into Leffingwell's place were hiding in that old cabin
+up in the woods. Perhaps the same story might be repeated, who knows?
+They call it the Bird boys' luck, Frank; but then, we work for all we
+get, and ought to have a little credit when we win out. If we made a bad
+job of things, the same people would be quick to say we didn't know our
+business. Shall we go back to the shop first?&quot;</p>
+
+<p>&quot;That would be the only way,&quot; replied Frank. &quot;If we're going to take on
+this dangerous job of looking up yeggmen who have broken into a bank,
+and looted it, why, it seems to me we ought to make a little
+preparation. Of course, about all we expect to do is to scout around,
+and see if we can pick up any information with the aid of our marine
+glasses. It's hardly to be expected that two boys would take the chance
+of trying to nab a couple of reckless thieves, who must be armed and
+desperate.&quot;</p>
+
+<p>&quot;But if the opening came, Frank, we wouldn't let it slip by, would we?&quot;
+asked Andy, always willing to go to the limit, when temptation beckoned.</p>
+
+<p>&quot;Perhaps not,&quot; answered the other, smilingly; &quot;but there's no use
+crossing a bridge till we come to it, so we won't bother any more about
+that. Get aboard, Andy, and we'll head for home again.&quot;</p>
+
+<p>&quot;Just think of all that's happened since we had that little accident
+yesterday afternoon, up near the Quackenboss place?&quot; Andy went on to
+say, as he complied with his cousin's request, and settled himself in
+his seat, leaving the piloting of the machine to Frank.</p>
+
+<p>&quot;There has been quite a little run of excitement, that's a fact,&quot; mused
+the other; &quot;first the accident, and our great good luck in making a
+landing without breaking a thing, including our precious necks.&quot;</p>
+
+<p>&quot;Then the discovery of Percy and Sandy looking at the hydroplane lying
+there, and hurrying away as if they had already laid a plan to come back
+and pay a night visit, if they failed to see us get home by daylight,&quot;
+Andy went on to add.</p>
+
+<p>&quot;Events followed thick and fast after that, Andy&mdash;the coming of the
+four fellows, with their faces hidden; their repulse at the hands of
+yourself and the friendly Felix; then the robbery of the bank; the
+breaking into our shop by men who left their cards behind in the shape
+of these burglar tools; the meeting of the Chief on the road, and the
+news he gave us; and last of all the coming of Percy with the startling
+news that his biplane had been stolen!&quot;</p>
+
+<p>&quot;Yes, but don't forget my seeing it sailing over just at early dawn,&quot;
+remarked the other, as Frank stooped forward for a last look around,
+before starting up the powerful little Kinkaid engine. &quot;Because that
+promises to play quite a figure in the pursuit of the smart thieves;
+though they may be fifty miles away from here by now, if they know how
+to handle that fine biplane right.&quot;</p>
+
+<p>&quot;Hold tight; we're off!&quot; warned Frank, as he applied the power; for the
+new engine was of course a self-starter, and could be operated from his
+seat with almost as much ease as might be shown in using electricity,
+and pressing the button.</p>
+
+<p>The hydroplane ran easily along the ground, for the bicycle wheels were
+always kept in first class condition; and as the speed kept on
+increasing Frank soon uptilted the plane, and like a great bird rising
+from the ground, with a graceful sweep the flying machine took to the
+air.</p>
+
+<p>Long practice had made the Bird boys familiar with every movement
+connected with the actions of an aeroplane, but at the same time they
+tried to be always on their guard against being incautious. That is the
+trouble with most aviators; they grow so familiar with danger that they
+forget the terrible risk that always hangs over the head of every one
+who soars aloft in his frail airship; and then, when finally something
+happens after they have become too reckless, they never get another
+chance.</p>
+
+<p>Sweeping along not more than three hundred feet above the ground, the
+boys were home in almost no time. They could see the car containing
+Percy Carberry, and his crony, Sandy, just vanishing among the houses of
+Bloomsbury; and the Chief, about half-way there, waved his hat at them
+as they sped past him.</p>
+
+<p>Then the aeroplane dropped lightly down close to the hangar back of the
+Bird home, where Andy and his father, the professor, lived, together
+with old Colonel Whympers, the veteran who used crutches or a cane on
+account of his rheumatism, brought on, he always declared, not by age,
+oh! no, but the wounds he received many years ago, when he was fighting
+for his country in the great civil war.</p>
+
+<p>He was sitting there on a pile of lumber waiting for them, a quaint old
+fellow, who was greatly beloved by both cousins; and who believed firmly
+that some fine day Andy Bird was bound to even eclipse the fame which
+his father had gained in the field of science and aviation.</p>
+
+<p>It happened that the professor was away at the time delivering a series
+of lectures before some body of scientists in a distant city. And
+whenever the boys were in their shop the old veteran was in the habit of
+coming around, to see what new and wonderful things engaged their
+attention, as well as chatting with them. And he was as welcome as the
+sun in May.</p>
+
+<p>Of course, just then he was bristling with questions as a hedgehog would
+be with sharp-pointed quills. And knowing the Colonel of old, Frank and
+Andy lost no time in telling him all that had happened to them, from the
+time of their little accident, down to when they heard the latest news
+from Percy Carberry.</p>
+
+<p>&quot;And I warrant now,&quot; remarked Colonel Whimpers, as soon as the tale was
+finished, &quot;that you two boys get the first clew to where the robbers
+are hiding. Didn't you beat the wonderful Chief out before, and doesn't
+history have a habit of repeating itself? Oh; if only I was ten years
+younger, how I'd love to be along, when all these glorious things are
+happening. I hate to think I'm put by on the shelf and never can be any
+good again.&quot;</p>
+
+<p>That was the old man's only fault; he was forever complaining because
+his day for indulging in exciting scenes had passed; but any one who
+knew the half that he had passed through, would think the colonel had no
+reason to say anything; and that it was only right that someone else had
+a show.</p>
+
+<p>They soon soothed him, however, and long practice had made Andy
+particularly apt at this sort of thing.</p>
+
+<p>&quot;Here come Elephant and Larry, on the run,&quot; remarked Frank, a little
+while later; &quot;I wonder if they saw us come home, and whether they can
+have picked up any additional news connected with the bank robbery, that
+we ought know.&quot;</p>
+
+<p>&quot;Well, it might pay us to hold up a little, and see,&quot; added Andy.</p>
+
+<p>&quot;Yes, since we're in no great hurry, and the day is long,&quot; Frank
+remarked.</p>
+
+<p>The two boys came up panting for breath. Larry had evidently set the
+pace, and it was a matter of the smaller lad keeping with him, or else
+being left behind, something Elephant never liked to have happen; so
+that he was unable to say even a single word for a full minute after
+arriving alongside the hangar.</p>
+
+<p>&quot;Tell us, have they learned anything new since the Chief started off?&quot;
+asked Frank, as usual right to the point; and in this way cutting off
+the myriad of questions which he knew both the newcomers were primed to
+ask.</p>
+
+<p>&quot;Why, yes,&quot; gasped Larry, while Elephant nodded his head as if to say he
+agreed to all that was said, &quot;after Percy came bustling around, asking
+for the Chief, and telling how somebody had busted into his place, and
+run off with his biplane in the night, they got to talking it over, and
+wondering if it could have been the robbers, and if one of 'em knew how
+to handle such things. So they called up the city, and asked questions.
+In that way they learned that there was a yegg who had been suspected of
+having been connected with several other jobs, though they never could
+just put the kibosh on him, and his name is Casper Blue, and one time he
+used to be an actor, and then became a pretty well-known flier, but in
+an accident he broke his arm, and had to give up his business. He was
+always a crooked sort of feller, and after that just boozed around,
+joined in with hobo gangs, and they believe touched up a few jobs
+himself. There, that's all we know; and now, what you been doing?&quot;</p>
+
+<p>&quot;Too long a story to tell just now,&quot; declared Frank. &quot;The colonel knows,
+and perhaps he'll amuse you after we've gone.&quot;</p>
+
+<p>&quot;Oh! say, are you meanin' to take after them fellers that busted the
+bank safe, and then got away with Percy's biplane?&quot; asked Elephant
+eagerly; &quot;don't I wish though I could just hang on behind, and be in the
+swim for once. You two seem to have about all the fun there is going,
+hang the luck, say I?&quot;</p>
+
+<p>&quot;Well, you'd better not try it, that's what!&quot; said Andy, shaking his
+head threateningly at the bare suggestion of having Elephant aboard when
+they made a start.</p>
+
+<p>&quot;I think we've got everything now, Andy,&quot; remarked Frank, anxious to be
+off.</p>
+
+<p>&quot;Hope you're taking guns along, because if you do run across them hobo
+fellers you'll be apt to need them right bad,&quot; Larry went on to say,
+also looking downcast at having to miss all the sport simply because
+Nature had never intended him for an aviator, as he was inclined to get
+dizzy when looking down from any height.</p>
+
+<p>&quot;Oh! Frank's provided for that, and besides, we don't really expect to
+round the thieves up, just find out if they've dropped down anywhere
+inside of thirty miles to the north of Bloomsbury. Shall I get aboard,
+Frank?&quot;</p>
+
+<p>&quot;Yes; and after we're off, Larry, will you and Elephant do me the favor
+to step around to my house, and tell my folks that the Bird boys have
+hired out as scouts to Chief Waller? Tell dad that we'll be mighty
+careful, and for mother not to worry about us. You know I always call
+Aunt Laura mother, because she's been that ever since my own died years
+ago. Will you do that, boys?&quot; and Frank sitting there ready to start,
+turned a smiling face upon his two friends. Even as they promised, the
+aeroplane started off, and a minute later soared up in the air, like a
+bird rejoicing at its freedom for leaving the earth behind.</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_VIII"></a><h2>CHAPTER VIII</h2>
+<br>
+
+<p>JUST BELOW THE CLOUDS</p>
+
+<p>&quot;Good luck to you, boys!&quot; came floating up from the ground, above the
+buzzing of the busy little Kinkaid motor; and looking down, they could
+see Larry, Elephant, yes, and the old veteran also, carrying on
+excitedly, as they swung their hats around.</p>
+
+<p>&quot;Who're you waving your handkerchief to, Frank; does your best girl keep
+her eyes on the skies all the day long, looking to see you come around?&quot;
+demanded Andy, humorously.</p>
+
+<p>&quot;Yes, that's my best girl, as sure as you live; and she's standing there
+on the porch of our house right now, waving to me&mdash;Aunt Laura, who
+thinks just as much of me as any mother could. But Andy, neither of us
+said anything when Larry told about that hobo aviator named Casper Blue;
+yet he answered the description the bank watchman gave of the smaller
+man who had a stiff arm.&quot;</p>
+
+<p>&quot;Oh, I noticed that, all right, even if I didn't look your way,&quot;
+returned Andy, promptly. &quot;It sort of clinched the nail we drove through
+didn't it, Frank?&quot;</p>
+
+<p>&quot;Seems like it,&quot; the other went on to remark. &quot;And the chances are ten
+to one, we've got the story down fine right now, know who one of the
+robbers was, why they wanted to steal an aeroplane to make their
+get-away in, and all that. But there are a few things we don't know,
+that'd throw a little more light on the affair.&quot;</p>
+
+<p>&quot;As what?&quot; queried his cousin.</p>
+
+<p>&quot;Well, for one thing, the Chief seemed to think the thieves might have
+had inside information, they seemed to know so much about things
+connected with the bank, our having an aeroplane, where we lived, what
+our habits were, and then about Percy's biplane in the bargain. Now,
+that's something serious; if there's a man in Bloomsbury who's in league
+with such rascals he'll be apt to help them out again later on if they
+get away with this job; and he ought to be found out.&quot;</p>
+
+<p>&quot;Whew! looks like we've got a big job on our hands if we hope to do all
+that sort of thing,&quot; commented Andy, with a whistle to indicate his
+feelings.</p>
+
+<p>&quot;Nobody said we even think of trying,&quot; laughed Frank, as he stopped
+mounting upward in spirals, and headed away toward the north.</p>
+
+<p>It was a glorious view that they had now spread out beneath and around
+them. Neither of the Bird boys ever tired of such wonderful sights; and
+although by now it had become an old story, they enjoyed it as much as
+ever, even if their former sensation of awe had given way to one of
+familiarity.</p>
+
+<p>They could see the entire outlines of beautiful Lake Sunrise, with its
+many coves, and points jutting out, the water glistening in the
+sunlight, as the morning breeze fanned it gently.</p>
+
+<p>Why, yes, there was the little lake steamboat called the Mermaid,
+passing along the northern border of the lake, on the way between the
+town of Cranford, on the shore opposite Bloomsbury, and headed toward a
+small lumbering camp far up the left bank, possibly to deliver supplies,
+after which she would point her nose down toward the home town, which
+was of more importance than any other station on Lake Sunrise.</p>
+
+<p>The boys did look back, dear though the scenes around home must ever be
+for them. It was characteristic of these lads that once they put their
+shoulder to the wheel, or in other words, their hand to the plow, they
+would not allow themselves to be discouraged by thoughts of the home
+ties. That accounted for much of the success that had been their portion
+in the past. They could for the time being forget that there was any
+such place as home; and in this way they avoided the weakness that such
+thoughts are apt to bring along in their train.</p>
+
+<p>Forward their way lay, toward those forbidding wilds far to the north,
+where few towns could be found, and pretty much all the country was a
+vast wilderness, filled with picturesque forests, wild swamps, and
+rugged hills.</p>
+
+<p>It was just the country where desperate law breakers would choose as a
+hiding-place, after they had committed some crime, and expected a warm
+pursuit. Ordinary methods would never find them, save through a mere
+chance; but when one can copy the eagle, and mount to dizzy heights,
+with a pair of powerful glasses he can see almost everything that is
+going on for miles and miles around, provided he has a skilled companion
+along to manage the aeroplane or balloon.</p>
+
+<p>And that is destined to be the greatest value of these winged messengers
+in future years, since it has been proven that they are not so very
+dangerous after all in the line of dropping explosives upon battleships
+or fortified places.</p>
+
+<p>&quot;Somewhere up yonder, Frank, they are probably hiding, and feeling
+perfectly safe from pursuit,&quot; ventured Andy, who was sweeping the marine
+glasses around and examining the country ahead with more than common
+interest.</p>
+
+<p>&quot;Look how Old Thunder-top stands out today!&quot; remarked Frank, turning for
+just an instant to glance upward toward the left, where the high
+mountain towered, its heavily wooded sides looking as gloomy as ever,
+and the white cliffs that made the summit inaccessible to human feet,
+appearing almost dazzling in the glittering light of the undimmed
+morning sun.</p>
+
+<p>&quot;And say, there's our old friends, the eagles that had a nest up there,
+and gave me such a warm time when we first reached the top.&quot; Andy cried,
+as he focused his glasses on a sweeping pair of huge birds that were
+heading their way, as if meaning to investigate, and find out what
+manner of rival this could be, invading their native element.</p>
+
+<p>&quot;They know too much to bother with an aeroplane by now!&quot; declared Frank,
+laughing again. &quot;Why I'm thinking those birds have hardly grown new
+feathers in place of the lot they lost that time they fought us so
+savagely.&quot;</p>
+
+<p>The memory appeared to amuse his cousin also, for he could be heard
+laughing heartily, even above the purr of the now steadily going motor
+that sent the propellers whizzing around so rapidly; for there was one
+fore and aft, as is the case with all biplanes, the engine being behind
+the pilot and his companion.</p>
+
+<p>&quot;Tell me if you can remember, was that other aeroplane headed straight
+up the lake the last you saw it in the early morning light?&quot; Frank
+asked.</p>
+
+<p>&quot;That's right, Frank; but then I couldn't say just how long they kept
+along that same course. When those hundreds of old crows came sailing
+along on the wind, cawing to beat the band, and going every-which-way, I
+lost sight of the biplane. After that it would have to be just guess
+work.&quot;</p>
+
+<p>&quot;But we've got a good pointer to start with,&quot; insisted Frank. &quot;They
+wouldn't be so apt to head toward the south, east or west, because in
+those directions there are plenty of towns and villages, and these could
+report seeing a strange biplane passing over, so giving the police a
+clue. No, chances are ten to one they kept right on toward the north.
+And there's where we've got to do all our searching today. We can just
+comb the whole district over, and anything that looks like the stolen
+aeroplane is sure to catch our attention from this height, don't you
+think so, Andy?&quot;</p>
+
+<p>&quot;I reckon it will, Frank; but the only thing bothers me is that things
+may have worked all right with the rascals, and by now they're away off,
+so far distant that we'll never in the wide world get in touch with
+them, the more the pity.&quot;</p>
+
+<p>&quot;Well, it's never been a habit of ours to own up beaten till we've done
+everything under the sun to win out. And Andy, we've only started as
+yet. The field is before us, you know, with a whole day's supply of gas
+to push us on, if we want to keep going. So I'm not asking any favors,
+and expect to do just my level best to find out where the bank robbers
+have gone.&quot;</p>
+
+<p>&quot;And if we hunt around a whole lot without getting tabs on the pair,
+why, we can drop down somewhere in a town, and get in touch with
+Bloomsbury Headquarters. The Chief as much as promised that he'd leave
+word there to put us wise to anything that had been learned by way of
+the telephone, from other places. And given a clue in that way, we might
+take a fresh spurt, you know.&quot;</p>
+
+<p>&quot;Just so, Andy,&quot; agreed the other, bending his head to watch how some
+part of the machinery was doing its duty; for that is always the weak
+link in modern aviation, nearly everything depending on the engine
+fulfilling its part perfectly.</p>
+
+<p>Andy continued to make use of the pair of glasses that magnified objects
+in the far distance so wonderfully that a man could have been recognized
+easily a mile away, and perhaps much further, if the air were real
+clear.</p>
+
+<p>Now and then he turned them to the right. The beautiful lake always
+attracted him very much like a magnet would, whenever he had a chance to
+look out over its glistening bosom.</p>
+
+<p>And there was the little steamer, just as Frank had said; why, he could
+even distinguish Todd Pemberton up in the pilothouse, grasping his wheel
+and guiding his charge among the shoals that were charted in the
+northern end of the lake as dangerous, that is, for green hands at the
+tiller or wheel of a boat propelled by sails, steam or gasolene.</p>
+
+<p>They were moving in a line that would carry them up along the shore, and
+consequently every minute they drew nearer the small lake steamer that
+was heading toward them.</p>
+
+<p>Passengers could be seen on its deck, and possibly every eye was glued
+just at that particular moment on the aeroplane that was buzzing go
+steadily northward; perhaps it might have been the first time some of
+these people had ever seen such an interesting object; but in the region
+around Bloomsbury it was by now a common sight, with such enterprising
+young air pilots as the Bird boys and Percy Carberry in the field almost
+every decent day.</p>
+
+<p>All at once Frank was heard to utter an exclamation.</p>
+
+<p>&quot;Turn your glasses straight ahead, and see what that can be fluttering
+among the bushes at Norton's Point, Andy!&quot; he called out hastily.</p>
+
+<p>When the other had swung around, and covered the region spoken of, he
+quickly gave the desired information.</p>
+
+<p>&quot;Somebody seems to be shaking a handkerchief or something else white,&quot;
+he observed. &quot;And it don't look like just waving at the steamer either,
+for they do it after a system, as we would signal with wigwag flags.
+There, I counted seven times he did it; then comes a halt, and one, two,
+three times, another halt; and once more he starts in, this time three,
+four, five, and then stops. Now, what do you suppose the fellow means by
+that, and who can he be waving to, Frank?&quot;</p>
+
+<p>&quot;You'd expect it might be some one out on the lake; can you see any
+small boat in sight, Andy; or any one waving back from another point?&quot;</p>
+
+<p>&quot;Not a thing, as far as I can see,&quot; replied the boy with the marine
+glasses.</p>
+
+<p>&quot;Suppose you try the steamer, then,&quot; suggested Frank, meaningly.</p>
+
+<p>Immediately Andy gave an exclamation of astonishment.</p>
+
+<p>&quot;I see a signal moving, Frank, and it seems to be copying the one on
+shore,&quot; he hastened to remark, excitedly.</p>
+
+<p>&quot;Where does it come from, the passengers that I saw pushing up against
+the rail, and staring at us; are any of them interested, do you think?&quot;
+continued Frank, who just then could not turn his head to look, but must
+depend on his chum.</p>
+
+<p>&quot;Well, no,&quot; answered Andy, &quot;it seems to come from the pilothouse, and
+must be Todd Pemberton, himself.&quot;</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_IX"></a><h2>CHAPTER IX</h2>
+<br>
+
+<p>THE PILOT OF THE MERMAID</p>
+
+<p>&quot;So, it's Todd Pemberton, is it?&quot; remarked Frank, &quot;I think it'll pay us
+to slow down a little, and look into this white rag-waving business.&quot;</p>
+
+<p>&quot;Goodness gracious! you can't be thinking that Todd is in touch with the
+bank robbers, can you, Frank?&quot; Andy exclaimed, astounded, apparently, at
+the very thought of such a thing.</p>
+
+<p>&quot;Oh! I'm not up to that point of saying anything&mdash;yet. But all the same
+it's what I call interesting, you know,&quot; the other replied; and from
+this Andy could easily guess that while Frank might have notions about
+the matter, he did not care to commit himself so early in the game.</p>
+
+<p>&quot;Yes, that's so,&quot; Andy replied, still having his eyes glued to the
+binoculars.</p>
+
+<p>&quot;What's doing now?&quot; continued Frank.</p>
+
+<p>&quot;Nothing that I c'n see,&quot; replied the other.</p>
+
+<p>&quot;No more white handkerchiefs waving around the point, eh, Andy?&quot;</p>
+
+<p>&quot;Not a blessed thing; and Todd's quit too. Guess they've come to some
+sort of an understanding. Wish I knew what seven, three, five meant;
+something pretty interesting, I'll be bound.&quot; Andy went on to mutter,
+half to himself.</p>
+
+<p>&quot;Well, we can only guess, and that's the extent of it,&quot; Frank was
+saying, in a rather serious tone, as though he believed there might be
+more in connection with the little affair than a mere exchange of
+civilities.</p>
+
+<p>&quot;How about Todd Pemberton, Frank?&quot; asked the boy with the glasses.</p>
+
+<p>&quot;Well, you know him as well as I do, perhaps better,&quot; returned his
+cousin.</p>
+
+<p>&quot;I mean, wasn't there once something against him? I know, Frank, that my
+guardian signed a paper about getting Todd his position with the
+steamboat company this last spring; they always get him to sign
+everything going, he's so good-natured and what you call an Easy Mark.&quot;</p>
+
+<p>&quot;Yes, they came to my father too, and he put his name down, I remember.
+As near as I can say, it was a petition to ask the company to give Todd
+the position of pilot; and stated the belief of all those who signed
+that he would make good. He used to be a pilot on Lake Sunrise, and
+before that on one of the Great Lakes.&quot;</p>
+
+<p>&quot;But, Frank, why the petition, if he was able to fill the place you'd
+think all he had to do was to make application, and then jump in?&quot;</p>
+
+<p>&quot;Well, it seemed to be pretty generally known about Bloomsbury that Todd
+had not always been as straight as he is today; and lots of people
+believed he would never hold his place a week; but he's had it all
+summer now, and seems to be giving satisfaction, all right,&quot; Frank went
+on to say.</p>
+
+<p>&quot;But there was a past, you mean; Todd had gone the pace, and used to
+drink and gamble, I suppose. Perhaps, now, he even used to herd with a
+tough set. How about that, Frank?&quot;</p>
+
+<p>&quot;It's so all right. Todd got down pretty low, and was even a hobo, I
+heard, before he took a brace, and came back to Bloomsbury to make a man
+of himself again.&quot;</p>
+
+<p>&quot;Gee! I'm real sorry to hear that,&quot; Andy muttered.</p>
+
+<p>&quot;What? That he reformed?&quot; demanded the cousin, in pretended surprise.</p>
+
+<p>&quot;Shucks! no; but about his having been a tramp; because, don't you see,
+Frank, it makes things look black for Todd. Remember, don't you, about
+what the Chief said when he spoke of the yeggs knowing so much about
+things, that he thought they must have had inside information; and that
+somebody familiar with Bloomsbury ways helped them figure it all out.
+Looks bad for Todd, that's what, Frank.&quot;</p>
+
+<p>To hear Andy talk you would think that the party in question must have
+been a personal friend, at least, when, in truth, he only knew Todd
+Pemberton to speak to, as he did a thousand other people in and around
+the home town.</p>
+
+<p>&quot;By that you mean you're afraid he's fallen in with some old companions
+in crime and been tempted, or forced to join them in this raid on the
+bank?&quot; was the way Frank put the matter direct.</p>
+
+<p>&quot;You've covered what I do believe, as sure as my name's Andy Bird.&quot;</p>
+
+<p>&quot;Well, let me say that I think the same way you do,&quot; Frank went on to
+remark.</p>
+
+<p>&quot;Good!&quot; cried Andy, in a delighted tone. &quot;Sometimes we agree, and again
+we have different minds; but in this case it looks like we might be on
+the same raft.&quot;</p>
+
+<p>&quot;Take another good squint at the point, Andy, and see if you can pick up
+that man again, the fellow who was doing all that tall Wigwagging.&quot;</p>
+
+<p>&quot;I'm looking, Frank.&quot;</p>
+
+<p>&quot;What d'ye see there now?&quot; the other continued.</p>
+
+<p>&quot;Nothing&mdash;that is, there are stones, and moss, and trees, and perhaps
+birds flying around this way and that; but never the first sign of a
+human being can I discover anywhere, Frank.&quot;</p>
+
+<p>&quot;Still, we know there's one man there at least, perhaps a pair of them
+hiding somewhere around that desolate place. Why, Norton's Point is, I
+guess, about the meanest and loneliest place of all the Disston Swamp
+lumber company. Nobody hardly ever goes there except to shoot snipe and
+woodcock in the fall, and yet we happen to know there's one person
+hiding out there, and that he knows Todd Pemberton, for they've been
+exchanging signals through the wigwag code.&quot;</p>
+
+<p>&quot;Looks suspicious, Frank, don't you think?&quot;</p>
+
+<p>&quot;Looks like it might pay to investigate a little closer, Andy.&quot;</p>
+
+<p>They were by this time passing over the identical strip of country where
+Andy had watched the signal waving. By looking almost directly down, he
+could see between the tall trees as only an aviator ever has a chance of
+doing.</p>
+
+<p>&quot;You know what I'm hoping to discover, Frank?&quot; he remarked as he
+continued to scan every part that was at all exposed by openings among
+the trees.</p>
+
+<p>&quot;Percy's lost biplane, I take it,&quot; came the prompt reply.</p>
+
+<p>&quot;Yes, because they couldn't very well have landed without a certain
+amount of open space. We know how hard it is to drop into a hole, and
+worse still to climb up out of one. Didn't we have the toughest of times
+down there in that South American forest finding open spots where we
+could land with some chance of ever getting out again, without cutting
+trees down that were as big around as a young house?&quot;</p>
+
+<p>&quot;But I don't hear you shouting out that you've made any sort of
+discovery, up to now, Andy?&quot;</p>
+
+<p>&quot;Well, no, for a fact I haven't. But Frank, I wish you could take the
+glass and let me hold the wheel for a minute.&quot;</p>
+
+<p>&quot;You can tell me just as well, I think,&quot; replied the other.</p>
+
+<p>&quot;It's about the sandy beach in front of the point,&quot; remarked Andy.</p>
+
+<p>&quot;What ails it then?&quot; Frank inquired, seeing his cousin hesitate.</p>
+
+<p>&quot;Why,&quot; Andy went on to say, &quot;you know how powerful this glass is, and
+how it shows up the smallest of things when the sun is just right? It's
+doing that now. I can look down on the sand spit at the point; and for a
+lonely spot where hardly a man ever comes from November to June, it
+looks pretty well trampled up to me.&quot;</p>
+
+<p>&quot;Trampled by men or animals?&quot; the pilot inquired.</p>
+
+<p>&quot;I think by two-legged animals,&quot; answered the one who held the powerful
+lenses to his young eyes. &quot;And it struck me that perhaps the biplane
+came down right there early this morning. It was headed this way when I
+saw it, and not so very high up; though that flock of crazy crows
+knocked me out of watching it for some times.&quot;</p>
+
+<p>&quot;Do you mean it fell there; that they had an accident of some kind,
+Andy?&quot;</p>
+
+<p>&quot;Might be that; and then, again, perhaps they dropped down on purpose;
+p'raps they mean to have another warm session around Bloomsbury before
+skipping out of this section for good. With the aeroplane to make a
+quick get-away, they might think of some rich haul they want to gather
+in. Am I away off in my guess, Frank, or do you kind of lean the same
+way?&quot;</p>
+
+<p>&quot;I think you are getting pretty close to the truth, Andy, and that's a
+fact,&quot; replied the other. &quot;But it would clinch it if you could only
+glimpse the biplane hidden away somewhere down there under the brush or
+the trees.&quot;</p>
+
+<p>&quot;That's what I've been hoping for,&quot; returned Andy, a little fretfully,
+&quot;but so far without meeting any success that you could notice. But what
+ought we to do about it, Frank?&quot;</p>
+
+<p>&quot;Go on, and take a wide sweep around,&quot; came the steady reply. &quot;Perhaps
+we might run across another leading clue, and then this one would look
+foolish. We'd be sorry then, that we thought so bad of Todd. Perhaps,
+after all, he was only making signals to one of the men connected with
+the logging camp, up on the Point for something or other.&quot;</p>
+
+<p>He allowed the motor to work at the reduced speed that it had been
+carrying on ever since quitting the home field, where the workshop and
+the hangar stood. Andy still continued to use the glasses, as though he
+had not quite given up all hope of making some sort of discovery.</p>
+
+<p>Once, however, they had left the northern end of the lovely lake behind
+them for good, and only the forest lay below, Frank quickened matters
+somewhat. Truth to tell, he hardly knew what to think, and whether what
+they had witnessed could really have any bearing on the solution of the
+puzzle or not.</p>
+
+<p>Certainly if the hunt was only kept up in automobiles, that required
+fairly decent roads to allow of their getting along, there was not much
+chance of the authorities ever discovering the concealed hobo thieves;
+for they could not get within a mile of the shore up there at Norton's
+Point by such methods. The only way it could be reached was by boat; or
+possibly through the means of an aeroplane, such as the Bird boys were
+now using. Few places but could be spied upon, when one had the means
+for passing over the most inaccessible thickets and rocky hills.</p>
+
+<p>After a time they had gone many miles. Occasionally a small hamlet was
+seen below; and then would come once more the woods that extended over
+such a large space of territory in this part of the country. This was
+generally because of the swampy nature of the ground, which prevented
+farming operations being carried on, while the difficulty of getting the
+logs out of the bogs had deterred lumbering thus far.</p>
+
+<p>Andy had done his part of the work faithfully. He had scoured the
+territory over which they passed, and never did a break occur, however
+small, but he clapped his eyes upon it, and examined the open space
+thoroughly.</p>
+
+<p>&quot;There's Rockford ahead, and we've passed over the whole stretch of
+swamp and forest. Suppose, now, we dropped down on the commons, and get
+Bloomsbury on the long distance phone; perhaps they might have some news
+they could give us,&quot; and as Andy at once agreed to the proposal, for he
+was thirsty anyhow, and wanted a drink of soda water the worst kind,
+Frank began to descend gracefully.</p>
+
+<p>They had about half the population of the place gaping at them as they
+finally landed on the big green. Frank asked his cousin to stay by the
+machine while he sought police headquarters, and asked to get in touch
+with the home town.</p>
+
+<p>He had no sooner made the connection, and heard some one answer him
+after he told who he was, when there was sent along the wire some
+information that rather gave Frank a shock, because of its nature, and
+the fact that it seemed to fully dispose of the theory he and his cousin
+had already formed.</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_X"></a><h2>CHAPTER X</h2>
+<br>
+
+<p>HEARD OVER THE WIRE</p>
+
+<p>Luckily the center of interest remained around the odd looking aeroplane
+with the metal pontoons underneath its body, so that Frank was allowed
+to walk away almost unnoticed, when he had secured the important
+information he inquired for, and which was leading him to the drug store
+nearest the town green.</p>
+
+<p>True, an aviator had landed in Rockford on one or two occasions, for
+some reason or other, in times past. Since the Bird boys could not
+remember having done so, possibly it may have been Percy Carberry,
+anxious to enjoy the stares of the good people, and pose as a great
+fellow.</p>
+
+<p>But this was a type of air machine with which none of them were
+familiar; and as so much space was being taken up even in the local
+papers with the accounts of the wonderful doings of daring navigators of
+the upper currents, it was only natural that some bright boy should
+speedily guess what manner of craft the chance visitor to Rockford must
+be.</p>
+
+<p>&quot;Hey! that's a hyderplane, mister, ain't it?&quot; demanded one sharp-eyed
+chap, after he had glimpsed the construction of the aluminum pontoons
+that were just kept from contact with the ground by the bicycle wheels.</p>
+
+<p>&quot;Have you ever seen one before?&quot; asked Andy, desirous of keeping up
+friendly relations with the crowd, for he knew how important that might
+prove, since, as yet, no man wearing a blue uniform had put in an
+appearance; and should any hoodlum choose to play &quot;rough house,&quot; or try
+to be too familiar with the apparatus, there was always a chance that
+some damage might be done.</p>
+
+<p>&quot;No, I ain't, but I seen a picture of that 'ere Coffyn feller, a-flyin'
+down on the Hudson river nigh New York; and she looked a heap like this
+here shebang,&quot; came the quick response.</p>
+
+<p>&quot;Well, you guessed right that time, for that is what it is called, a
+hydroplane; because it can be navigated on the water as well as in the
+air. And if you'll please stand back, so as not to bother with anything,
+because the least handling may put the whole machine out of tune, I'll
+be glad to tell you something about how we manage to use it as a boat.&quot;</p>
+
+<p>Andy knew how to manage, and he exerted himself to entertain the crowd
+while Frank was absent, keeping their interest aroused by little
+stories of things that had happened to birdmen in recent times, and
+which were of course well known to him, from the fact that both the
+cousins kept in close touch with all that went on in the world of
+aviation.</p>
+
+<p>All the while Andy was keeping one anxious eye out for the sign of a
+blue uniform and brass buttons, while new additions kept arriving
+constantly to swell the eager crowd gathered on the park green.</p>
+
+<p>In the end he was vastly relieved to discover a policeman hurrying up,
+looking as serious as though he expected to discover a fight, or two
+youngsters matching pet roosters, to the delight of the gathered host;
+for since the flying machine lay on the ground it was mostly concealed
+from his view; and he would never have known what it was anyway.</p>
+
+<p>Of course, when he arrived on the scene and took command Andy quickly
+gained his favor by a little subtle flattery; and after that felt that
+he was, as he himself expressed it, &quot;on Easy Street.&quot;</p>
+
+<p>Meanwhile Frank had proceeded direct to the drugstore on the corner,
+about two blocks away from the end of the green, where they had told
+him he could talk over the long distance phone with Bloomsbury.</p>
+
+<p>He was pleased to find that they had a regular booth in the store; for
+he knew of numerous cases where the phone simply stood on a little
+stand, and everybody could hear what the subject of the talk might be,
+especially one side of it.</p>
+
+<p>Once closeted in the booth he hastened to ask for connection with Police
+Headquarters at Bloomsbury. There was some little delay, as though these
+long distance calls might be of rare occurrence in the local Central;
+but finally he received notice that connection had been made, and he was
+at liberty to start his message.</p>
+
+<p>&quot;Hello! this Bloomsbury?&quot; Frank asked first of all in a cautious way.</p>
+
+<p>&quot;Yes,&quot; came the reply, distinctly enough.</p>
+
+<p>&quot;And is this Police Headquarters?&quot;</p>
+
+<p>&quot;Yes.&quot;</p>
+
+<p>&quot;This is Frank Bird speaking and we are over in Rockford; get that?&quot;
+Frank continued.</p>
+
+<p>&quot;Yes,&quot; again came the reply from the party at the other end.</p>
+
+<p>&quot;Chief Waller asked us before we left Bloomsbury to keep in touch with
+Headquarters, and that you would supply us with any new information
+that might come to hand while we scoured the country overhead, looking
+for signs of the men who robbed the Bloomsbury bank last night, and
+escaped in Percy Carberry's biplane. Who is this I am talking to,
+please?&quot;</p>
+
+<p>&quot;Officer Green, Frank.&quot;</p>
+
+<p>&quot;Oh! is that you, Joe; I didn't recognize your voice over the wire,&quot;
+Frank went on to say. &quot;You heard what the Chief said about giving us the
+latest news, didn't you, Joe?&quot;</p>
+
+<p>&quot;I certain did, Frank,&quot; answered the man at the other end of the wire.</p>
+
+<p>&quot;We've covered quite a large territory up to now, and think we've run
+across a clue; but we want to make sure before putting the bloodhounds
+of the law on the scent. Get that?&quot;</p>
+
+<p>Frank was wise to the fact that Officer Green took himself and his
+position on the local police force very seriously. True, he had never
+done anything very great, to distinguish himself, beyond once stopping a
+runaway horse that some people said was too decrepit to have gone twenty
+paces further; and rescuing a little pet dog that had fallen into the
+lake from a wharf; but then he believed in himself; and read up all the
+thrilling stories of police achievements that were published in the New
+York papers, satisfied that sooner or later the day was bound to come
+when he would be able to prove himself a grand hero.</p>
+
+<p>And that was just why artful Frank used that phrase &quot;bloodhounds of the
+law,&quot; for he knew that it would cause Joe Green to puff up with pride,
+and feel more kindly disposed than ever toward the speaker.</p>
+
+<p>He gauged matters exactly right, too, it seemed; for when the police
+officer spoke again it was with additional eagerness.</p>
+
+<p>&quot;Good for you, Frank; all Bloomsbury expects the Bird boys to do the old
+town proud again. Many the time have you done it in the past, we all
+know. And when you feel dead sure that you've got track of the desprit
+villains who looted our town bank, all you have to do is to give the
+police the signal, and they'll throw a drag-net around the hang-out of
+the yeggs. That's what we're here for; that's what we draw our salaries
+for; to protect the citizens of Bloomsbury against danger by fire,
+flood, robbers and the like.&quot;</p>
+
+<p>Frank knew only too well how Officer Green liked to talk, especially
+when once started on the subject of his exalted office; and accordingly
+he thought it time to cut him short, before he could get launched on the
+sea of police duties.</p>
+
+<p>&quot;Tell me, have you learned anything new since we left?&quot; he asked.</p>
+
+<p>&quot;Why, yes, we've just had a man in here, who had heard about the
+robbery, and that it was suspected the thieves had escaped by means of
+the biplane belonging to the Carberry boy. He thought as how we might be
+glad to know that he'd sighted a flying machine just after daybreak.&quot;</p>
+
+<p>&quot;Why, yes, that ought to be an important piece of news,&quot; remarked Frank,
+wondering whether it would corroborate that which the farm hand,
+Felix Boggs, had already contributed to the fund of knowledge concerning
+the movements of the fleeing yeggmen.</p>
+
+<p>&quot;I thought it was; and I'm only waiting right now to forward it to the
+Chief, as soon as he calls me on the wire from Hazenhurst, or some other
+place where he's apt to turn Up,&quot; came over the wire from the home town.</p>
+
+<p>&quot;Don't cut me off, yet, Central!&quot; called out Frank, hastily, as he
+thought he detected an uneasy movement, which was doubtless a sigh given
+by the girl, who possibly had her ear to the wire, drinking in what was
+being said: &quot;I'm not near done talking yet. Hello! Joe!&quot;</p>
+
+<p>&quot;Yes, I'm here, Frank; what more do you want to ask me?&quot; came from miles
+away; and in imagination he could see Officer Green crouched at the
+telephone stand, as he remembered it at Police Headquarters in
+Bloomsbury, feeling the importance of his relations with the public as a
+genuine guardian of the peace.</p>
+
+<p>&quot;Why, it's of considerable importance to us to know in which direction
+the aeroplane was going at the time this party sighted it,&quot; Frank went
+on to say, &quot;and I hope he told you that.&quot;</p>
+
+<p>&quot;Which he did without my asking,&quot; replied Officer Green, quickly,
+&quot;though you may be sure I would have done the same before letting him
+leave, because I was on to the fact that it would be a pretty good
+pointer.&quot;</p>
+
+<p>&quot;Oh! he thought of it himself, did he?&quot; the young aviator shot back,
+&quot;well, that was pretty bright of him, and shows that he was a fellow to
+take notice. And now, please tell me what he said about the direction in
+which the biplane was headed, at the last instant he could see it far
+away in the distance.&quot;</p>
+
+<p>&quot;Exactly southwest, Frank!&quot;</p>
+
+<p>This gave Frank a sudden jar, because it upset the theories he and Andy
+had been forming concerning the escaping bank robbers. They had believed
+the two men had gone almost directly north!</p>
+
+<p>&quot;Southwest, you say, Joe?&quot; he asked, wishing to make assurance doubly
+sure.</p>
+
+<p>&quot;He said exactly southwest; and as he kept repeating that word a number
+of times there isn't a bit of chance that I'd get it mixed. You can
+depend on it, Frank, and if you're away up at Rockford, seems to me
+you'll have to make a big change of base right soon, if you want to get
+in touch with them raskils.&quot;</p>
+
+<p>Frank's mind was in somewhat of a whirl. He wondered whether the farm
+hand, Felix Boggs, could have been mistaken in what he had said; though
+Andy, too, had seen the biplane, and noted the direction of its flight.
+But perhaps this farmer, or whoever he might turn out to be, had
+discovered the fugitive flying machine at a much later time, after the
+two men had changed the course of their flight.</p>
+
+<p>&quot;I suppose you might as well tell me who the party was from whom you got
+your news, Joe,&quot; he remarked; though without any particular object in
+view, since he could hardly expect to hunt the other up, and ask more
+questions.</p>
+
+<p>And then came the answer, that gave Frank quite a thrill, as he grasped
+the peculiar significance of it all.</p>
+
+<p>&quot;Why, you know him all right, Frank,&quot; said Officer Green, glibly, &quot;he's
+the pilot of the little lake steamer, and his name's Todd Pemberton!&quot;</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_XI"></a><h2>CHAPTER XI</h2>
+<br>
+
+<p>COMPARING NOTES</p>
+
+<p>&quot;He must have hurried up to Headquarters, then, as soon as he landed,
+because we saw the Mermaid crossing the northern end of the lake, bound
+for the lumber camp, before heading for Bloomsbury. How about it, Joe?&quot;
+Frank went on to ask, as soon as he had recovered from his surprise
+after hearing that particular name mentioned.</p>
+
+<p>&quot;Said he heard about the robbery,&quot; came over the wire in Officer Green's
+ponderous tones; &quot;and the fact of the raskils skipping out with the
+Carberry boy's biplane, as soon as he put foot ashore; and thinking that
+the police might like to know what he had seen, he just ran all the way
+here.&quot;</p>
+
+<p>&quot;Which I take it was mighty thoughtful of Todd,&quot; declared Frank, drily;
+but if he spoke sarcastically the fact was not known to the man at the
+other end.</p>
+
+<p>&quot;I told him so, and complimented him on his zeal in assisting the course
+of justice,&quot; the other continued, &quot;which was all the more remarkable,
+you know, Frank, because, to tell the truth, Todd himself was once a bad
+egg, until he reformed, and got his present job. It does him great
+credit, sure it does.&quot;</p>
+
+<p>&quot;He went away after letting you know that if you hoped to capture the
+thieves you'd have to chase southwest, and not north, didn't he, Joe?&quot;</p>
+
+<p>&quot;Oh! yes, about ten minutes ago, I reckon. But I assured him that if we
+did succeed in capturing the rogues he would not be forgotten in the
+division of the reward that was sure to be offered by the bank for
+the recovery of the money and securities that were taken, not to speak
+of the five hundred young Carberry has said he would pay for the
+recovery of his biplane and the arrest of the thieves.&quot;</p>
+
+<p>&quot;That was nice of you, Joe; but only what might be expected because your
+heart is as big as a bushel basket,&quot; Frank went on to say, &quot;and when you
+told Todd that, how did he take it?&quot;</p>
+
+<p>&quot;Why, he just chuckled, and looked at me kind of funny, and said he
+never hoped to take any of the hard-earned reward money that the police
+were justly entitled to because of their activities,&quot; replied the other.</p>
+
+<p>&quot;It's plain to be seen that Todd is a generous fellow. But I'm obliged
+to you, Joe, for giving me this information, because, you see, we've now
+got some foundation to build on. Goodbye, Joe!&quot;</p>
+
+<p>With that Frank rang off. He knew that he might chat with the gossipy
+police officer in Bloomsbury for at least fifteen minutes, but what was
+the use, when he already knew all the other had to tell?</p>
+
+<p>And the news that had come over the wire was of considerable importance,
+too. He smiled as he hurried out of the drugstore, not even waiting to
+quench his thirst at the soda fountain, though a short time before he,
+as well as Andy, had complained of feeling so exceedingly dry; but then,
+all that was now forgotten in this excitement connected with the latest
+development in the robbery case.</p>
+
+<p>It was back to the village green, now, with Frank.</p>
+
+<p>The crowd was greater than ever, and he quickly saw there would be no
+opportunity for any communication between himself and his cousin until
+they had left for the upper realms, where, surrounded only by silence,
+they could converse while the busy motor hummed and the aeroplane headed
+as they willed, either high above the hills, or skirting the tops of
+the forest trees.</p>
+
+<p>Accordingly, Frank addressed himself to the arduous task of getting away
+without any mishap. He, as well as Andy, had long since learned that it
+is the part of wisdom to gain the good will of a curious crowd. In that
+manner many friends are raised up, who are only too willing to lend a
+helping hand.</p>
+
+<p>He quickly selected half a dozen fellows who looked as though they might
+be of more than ordinary importance among the boys of Rock-ford. These
+he particularly picked out, and asked them to assist the police officer
+to keep the crowd back until they could get a good start, at the same
+time explaining that a clear passage would have to be made ahead, and
+that anyone getting in the way might not only be seriously injured, but
+wreck the machine as well.</p>
+
+<p>Proud to have been thus honored, the six boys proceeded to push back the
+gaping crowd and when Frank gave the word, also assisted in starting the
+hydroplane on its way.</p>
+
+<p>A salvo of loud cheers rang out when they started, and this burst into a
+furious chorus as the well balanced aeroplane presently left the ground
+to start upward into the air.</p>
+
+<p>&quot;I'm glad that's over with,&quot; said Andy, when they were safely off the
+ground, and the shouts of Rockford's enthusiastic population began to
+grow fainter in the distance.</p>
+
+<p>&quot;Same here,&quot; echoed Frank, &quot;you never know what will happen when a crowd
+is pushing all around you, every fellow eager to just say he had hold of
+a flying machine. There's always one or two of the lot ready to hang on
+and risk their lives just to see how it feels to be carried up on an
+aeroplane. They're the kind I'm most afraid of.&quot;</p>
+
+<p>&quot;Well, did you get Police Headquarters in Bloomsbury, Frank?&quot;</p>
+
+<p>&quot;No trouble about that; and our old friend, Officer Green, was in charge
+during the absence of the Chief,&quot; the other Bird boy answered.</p>
+
+<p>&quot;Anything new developed since we left?&quot; asked Andy.</p>
+
+<p>&quot;Just one thing, and Joe thought it meant a whole lot,&quot; Frank went on to
+say.</p>
+
+<p>&quot;Which was what?&quot; inquired the other.</p>
+
+<p>&quot;A man came hurrying in and told how he had seen a flying machine
+containing two parties just after daybreak, and making directly toward
+the southwest, Andy. What do you think of that now for news?&quot;</p>
+
+<p>His cousin gave a whistle.</p>
+
+<p>&quot;Whew! important, if true!&quot; he vouchsafed, tersely.</p>
+
+<p>&quot;That sounds as if you had some trouble believing it?&quot; chuckled Frank.</p>
+
+<p>&quot;Well, considering what I saw myself, I'd have to know the name of this
+party first, before I'd believe anything he said,&quot; Andy went on.</p>
+
+<p>&quot;Oh! You know him, alright; fact is, we were speaking of the same not a
+great while back,&quot; Frank observed, quietly.</p>
+
+<p>&quot;Don't make me start in guessing, Frank, because we've been talking of a
+dozen people; but tell me right out who it is,&quot; Andy pleaded.</p>
+
+<p>&quot;The pilot of the Mermaid, Andy!&quot;</p>
+
+<p>&quot;Gee! Do you mean Todd Pemberton?&quot; exclaimed the other.</p>
+
+<p>&quot;Just him and no one else. Why, he was that anxious to let the police
+know he had seen an aeroplane steering away straight into the southwest
+early this morning, that as soon as he warped his boat to the wharf,
+Todd, like a public-spirited citizen, hiked away for Headquarters as
+fast as he could run, hardly waiting long enough to understand about the
+bank being robbed, and Percy's biplane being used by the thieves as a
+means of making a quick get-away.&quot;</p>
+
+<p>Andy turned his head and looked in his cousin's face.</p>
+
+<p>&quot;Public-spirited citizen go hang!&quot; he said, contemptuously. &quot;After what
+we saw, Frank, it's easy for us to understand just what it was made Todd
+want the police to do all their hunting away off in the southwest.&quot;</p>
+
+<p>&quot;Yes, what do you think was his object?&quot; asked Frank, as he held the
+aeroplane just about five hundred feet above the level ground, covered
+by forests, as in most places around to the north of Bloomsbury, though
+occasionally they ran across farms that looked like oases in the
+dessert.</p>
+
+<p>&quot;Why, that's as plain as the nose on my face,&quot; replied Andy, &quot;and nobody
+ever had any trouble about seeing that, I guess. Todd wanted to get in a
+little bit of assistance for his friends, the hoboes who looted the bank;
+and he could do them the best thing ever by turning suspicion in nearly
+the opposite quarter. If Chief Waller could be assured that the last
+seen of the biplane before it vanished in the distance it was heading
+into the southwest, of course he'd take all his men off in that
+direction; and the bank robbers, hiding perhaps around the northern end
+of Lake Sunrise, would be free to do whatever they wanted. Do I hit
+about the same guess that you do, Frank?&quot;</p>
+
+<p>&quot;You've just echoed what I had in mind,&quot; returned his cousin, &quot;only
+I've had more time to think it over, and perhaps gone a little further
+than you could.&quot;</p>
+
+<p>&quot;As how?&quot; demanded the other, promptly, just as Frank knew he would.</p>
+
+<p>&quot;Why, you know, it struck us as queer that these fellows should want to
+hang out within twenty miles of the town where they'd just made a
+successful raid on the bank. It would stand to reason that they'd be
+only too glad to cut for it, after getting possession of Percy's fine
+new aeroplane, and by keeping on north, reach Lake Ontario, and perhaps
+fly across to Canada, where they'd be safe.&quot;</p>
+
+<p>&quot;Yes, sure; we talked that over before, Frank, and came to the
+conclusion that either they'd met with some sort of accident to the
+biplane, and had to hold over till the fellow who used to be an aviator
+repaired the same; or else that they had some other robbery in mind, and
+wanted to make a double killing of it before skipping out.&quot;</p>
+
+<p>&quot;All right. You can see, then, that if Chief Waller and about all his
+men got on a warm clue that led them off to the southwest for a day or
+so, it would leave things open for the carrying out of this second
+scheme!&quot;</p>
+
+<p>When Andy heard his cousin say this so gravely he seemed more startled
+than ever.</p>
+
+<p>&quot;Say, I believe you've gone and struck the truth just as you nearly
+always do, old fellow, not by luck, but by figuring it out. To get the
+coast clear, then, this sly Todd Pemberton means to go on bringing in
+important news, and keeping poor old Chief Waller worked up to top-notch
+speed, chasing around down there after shadows! Yes, that must be the
+game they've got in hand; and perhaps that's what all those waves of
+handkerchiefs meant between the pilot of the little Mermaid, and the
+fellow we couldn't see, who was hidden in the bushes on Norton's Point.&quot;</p>
+
+<p>&quot;He was undoubtedly there just to give Todd the high sign when the boat
+passed. Both of us spoke of the fact that we'd never known the steamboat
+to keep so far north when making the run from Cranford, across the lake,
+up to the lumber camp on our northwest side. But now we can understand
+why; he wanted to make sure his partners in crime were ready for him to
+do his little share in the game; which is to send the police on a wild
+goose chase and leave Bloomsbury next to unprotected tonight.&quot;</p>
+
+<p>&quot;But whatever in the wide world, Frank, do you think they mean to try
+next?&quot;</p>
+
+<p>&quot;I couldn't guess in a year,&quot; was the reply of the boy who manipulated
+the levers of the hydroplane so dextrously. &quot;It might be any one of a
+dozen or two games. The bank isn't the only institution in Bloomsbury
+carrying a lot of money in the safe. And then there are several rich men
+we happen to know, who keep a little fortune about the house, in the way
+of money, jewelry, or curios. For all we know, these yeggs may even have
+an eye on your house or mine, because they could make a pretty good haul
+there.&quot;</p>
+
+<p>&quot;Whew!&quot; was all Andy said just then; but his mind was undoubtedly filled
+with startling ideas.</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_XII"></a><h2>CHAPTER XII</h2>
+<br>
+
+<p>AT THE HOSKINS FARM</p>
+
+<p>&quot;Well,&quot; Andy went on to remark, presently, &quot;I see you are turning back
+again in the direction of the head of the lake. I hope, Frank, you don't
+mean to go all the way to Bloomsbury, and put the police in possession
+of the few facts we've succeeded in picking up.&quot;</p>
+
+<p>&quot;That was not my calculation at all,&quot; replied the other, &quot;in the first
+place, we suspect a good deal, but up to now we haven't got very much
+positive evidence on which to found a case. I'd like to know a little
+more before I get the Chief on the wire, and put him wise.&quot;</p>
+
+<p>&quot;Then when we get near the northern end of the lake perhaps you'll think
+it best to make a landing somewhere, and prowl around on foot, finding
+out what we can,&quot; Andy, continued eagerly; for he had become much worked
+up by this time, and was hoping that fortune would be as kind to them as
+on a previous occasion, which all Bloomsbury remembered very well.</p>
+
+<p>&quot;If we can only find a decent opening where we could make a get-away
+again, that is the only thing that bothers me,&quot; Frank replied.</p>
+
+<p>&quot;Now, I remember noticing a field near what seemed to be a lonely
+farmhouse; in fact there were a number of open places there, and they
+seemed to have Canada thistles growing in clumps, all a-bloom, as if the
+farmer had given up cultivating, and let things just go to rack and
+ruin. I was never up there myself, but from what I've heard my father
+say, I rather think that must be the Hoskins place. They say he
+consulted some fortune teller a couple of years ago, who told him he
+would some day discover a gold mine on his property that would make him
+a millionaire; and ever since the farmer has spent about all his time
+digging here and there, but up to now without any success at all.&quot;</p>
+
+<p>&quot;Why, yes, I remember hearing a lot about the queer old farmer myself,&quot;
+Frank went on to say. &quot;He's got a wife, and a half-grown daughter named
+Sallie. I met her at a country dance last winter, and she's a pretty
+nice sort of a girl. Now, we've been on the move a good while, Andy, and
+perhaps we might manage to make the Hoskins farm around the dinner
+hour.&quot;</p>
+
+<p>&quot;A bully good idea, too, Frank, and don't you forget it!&quot; cried the
+other, with considerable show of enthusiasm. &quot;Now, I just bolted what
+little breakfast I got this morning, and already I feel hungry enough to
+eat nearly anything. And speaking generally, these country people do set
+a great table; though I don't know how it will be with the Hoskins,
+because, if they've been neglecting their farm to chase around after
+rainbows, they probably won't be any too flush with supplies. But any
+port in a storm, and I guess we'll be able to get filled up; if only we
+can make a landing, and find the farm.&quot;</p>
+
+<p>&quot;As I figure it out, Hoskins' place wouldn't be over a mile or so
+directly above Norton's Point, Andy,&quot; the pilot of the expedition
+continued, thoughtfully.</p>
+
+<p>&quot;Yes,&quot; Andy said, encouragingly.</p>
+
+<p>&quot;And perhaps, now, we might happen to run on some sort of a little clue
+there. For instance, one of those yeggmen may have wandered around, and
+bought some eggs or milk from the farmer's folks; because, if they've
+been camping out in the woods, they've had to eat all the while, you
+know.&quot;</p>
+
+<p>&quot;A good idea, Frank; and we'll ask, if we're lucky enough to happen
+around the lonely farm about meal time.&quot;</p>
+
+<p>&quot;I'm going to make it a point to be there, and as we've got some time
+to kill meanwhile, let's hop over to that nice landingplace at the foot
+of old Thunder top, and overhaul the machine again. There are a few
+things I'd like to tinker with, because I'm not quite pleased with the
+way they work; and you know, Andy, I'm a regular crank about having a
+motor run like a watch.&quot;</p>
+
+<p>&quot;Well, I'm getting that way mighty fast, thanks to your hints, and the
+knowledge of how it pays, when you're taking your life in your hands
+every time you go up in one of these heavier-than-air outfits,&quot; was what
+the other Bird boy observed, with what was a thoughtful look, for him;
+because, as a rule, Andy appeared to be a merry chap, and laughing much
+of the time.</p>
+
+<p>Within half an hour they had successfully landed at the place indicated,
+and which had witnessed the coming and going of the young aeronauts on
+numerous occasions.</p>
+
+<p>Here at least they could remain and take things easy while waiting for
+the morning to slip along, so that eleven would roll around. Little
+danger of their being bothered by curious persons here; indeed, the boys
+had never yet known a solitary man or boy to come around the place.</p>
+
+<p>They could look up while lying there on their backs, and watch the
+fleecy clouds sailing swiftly past the lofty crown of the rocky
+mountain. And how vividly there came into their minds memories of lively
+times which they themselves had experienced up there on the summit of
+old Thunder top.</p>
+
+<p>They spoke of them now, as they lay stretched out on the soft turf, and
+watched the two white headed eagles soaring far up in the blue heavens,
+around and around in circles, without ever seeming to flap their great
+wings.</p>
+
+<p>Once the young aviators had engaged in a terrible conflict with those
+two mighty birds, on the crown of the mountain, where they had landed
+with their aeroplane, and been looked upon as intruders by the eagles,
+possibly under the belief that they entertained hostile intentions
+toward the fledglings in their nest that was built amidst the crags,
+close to the tip of the lofty peak.</p>
+
+<p>Frank and Andy often spoke of that thrilling episode, but never without
+some sort of little shiver, because it had been a serious time with them
+since one blow from those powerful wings might have toppled them over
+the edge of the dizzy height, and sent them to their deaths.</p>
+
+<p>But they had succeeded in beating their feather antagonists off by the
+aid of clubs which they wielded with vigor; and after the eagles learned
+that no harm was intended to their young by these bold navigators of the
+upper air currents, they came to have more respect for the strange
+winged thing that came humming up from the earth on more than one
+occasion.</p>
+
+<p>When eleven o'clock came around, the boys were off again, and headed
+toward the northern end of the lake.</p>
+
+<p>Of course they kept close down to the treetops, because, once they
+discovered the opening, they would wish to drop into it as easily as
+possible.</p>
+
+<p>Suddenly Andy, who was on the lookout, while Frank paid more attention
+to the easy working of the motor, and the steering of the hydroplane,
+uttered an exclamation of satisfaction.</p>
+
+<p>&quot;I see it, dead ahead!&quot; he remarked, in a satisfied tone. &quot;We made a bee
+line to the place from the foot of the mountain, Frank. And unless I'm
+away off in my guess, the farmhouse lies over yonder beyond the trees;
+so nobody's apt to see us come down; and we can make any sort of yarn we
+want, to explain just why we're here right now.&quot;</p>
+
+<p>&quot;We can do that all right, without telling anything that isn't so,&quot;
+replied the other aviator. &quot;The farmer doesn't know us, though Sallie
+will, and on that account we must be careful what we say. But the
+dinner's the main thing just now. And at the same time we'll try and
+pick up a little information, if Farmer Hoskins happens to know anything
+that would interest two fellows of our stamp.&quot;</p>
+
+<p>He passed over the opening once, to make sure that it contained all the
+necessary requisites for a successful landing, and also a launching of
+the airship. Then, making a graceful sweep back again, Frank allowed the
+aeroplane to drop lightly to the ground. It landed in almost the center
+of the field, and both boys saw that they might get away again without a
+great amount of trouble.</p>
+
+<p>&quot;Fine!&quot; was the comment of the pilot, as he jumped to the ground, and
+bent over to detach some part of the machinery without which the motor,
+as Andy always said, &quot;would not move worth a cent.&quot; This he often took
+with him, just as a chauffeur might the spark plug of an automobile,
+rendering it helpless unless the would-be thief were prepared to supply
+the deficiency off-hand, which was a remote possibility that never
+worried Frank.</p>
+
+<p>&quot;Now for grub!&quot; announced the hungry Andy, leading off in the direction
+where he had reason to believe the farmhouse lay; Frank always declared
+that Andy had a most wonderful nose for a meal that was preparing, and
+could spot a camp a mile away just by the smell of frying onions, or
+coffee cooking.</p>
+
+<p>At any rate he proved to be a successful pilot on the present occasion,
+for in a short time they were passing through an abandoned grain field
+where the bees and butterflies were swarming about the many lavender
+colored flowers of the great clumps of thistles; and the smoke from the
+farmhouse kitchen arose just over a little knoll.</p>
+
+<p>&quot;Told you so,&quot; said Andy, as they drew near the house, and caught
+fragrant odors of cooking in the air.</p>
+
+<p>Upon their knocking a girl came to the open door, and recognized Frank
+immediately as a boy she had met at the country dance the preceding
+winter. But nothing she said would indicate that the Hoskins, living
+here away from the world as they did, with the head of the house
+spending all his time hunting for that treasure-trove he still believed
+in, had heard anything to speak of about the wonderful things the Bird
+boys had been doing lately.</p>
+
+<p>Frank was glad of this, and he just casually mentioned that they
+chanced to find themselves near the farm, and wondered if they could get
+dinner there.</p>
+
+<p>So the good housewife was brought out, and with true country hospitality
+she immediately invited both boys to sit down with them, although saying
+that they were not as well supplied with the good things that used to be
+seen on their table before father took to boring those horrid holes all
+over the place, thinking to strike a coal vein, or perhaps a silver
+mine.</p>
+
+<p>He was off now, and would not show up until night, for the farm was one
+of vast dimensions, and covered miles of territory.</p>
+
+<p>&quot;But we have a boarder,&quot; said Sallie, as they sat down at the table.
+&quot;Sometimes he's here to meals, and again he gets so far away chasing his
+butterflies that he just carries what he calls a snack in his pocket.
+Such a queer little man he is too, with his brown glasses on, and always
+running this way and that with his little net in which he captures the
+butterflies that come to the thistles on our old barren fields. Perhaps
+he'll turn up while you're here. I'd like you to meet Professor
+Whitesides, who is from a big college, he tells us, and spending his
+vacation in the way he likes. Sometimes I think he's a little off up
+here,&quot; and she touched her head as she said this, &quot;and that perhaps he
+got hurt worse than he thinks, the time he met with the accident that
+crippled his arm.&quot;</p>
+
+<p>Somehow Andy looked up when he heard about that broken arm to find his
+cousin giving him the wink, while his eyebrows were elevated in a
+suggestive way, just as much as to say:</p>
+
+<p>&quot;Now, here's something mighty interesting already that would pay us to
+look into; because we know of another fellow who is troubled with a
+crippled arm and his name happens to be Casper Blue!&quot;</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_XIII"></a><h2>CHAPTER XIII</h2>
+<br>
+
+<p>THE BUTTERFLY COLLECTOR</p>
+
+<p>The dinner passed off without the odd little professor showing up,
+although Sallie said it was nothing unusual for him, and that he was
+liable to appear at any time, carrying his little white hand-net, and a
+small handbag in which he claimed to keep the trophies of the chase that
+had been run down during his last campaign.</p>
+
+<p>Frank wanted to get a chance to confer with his chum, and as soon as he
+could conveniently withdraw from the table, giving Andy a nod, he went
+out on the porch where he could look down the lane that led to the poor
+road, which in turn, after many trials and tribulations merged into the
+main pike.</p>
+
+<p>Andy joined him there a minute later, with a question in his eye.</p>
+
+<p>&quot;Professor Whitesides!&quot; was what Frank remarked.</p>
+
+<p>&quot;And a butterfly collector at that!&quot; Andy went on to say, with cutting
+sarcasm.</p>
+
+<p>&quot;That sounds pretty rich, to me,&quot; his cousin continued. &quot;I wonder, now,
+could it be possible that the other man we've heard of lately, Casper
+Blue, is playing a smart trick on these honest people, who would never
+dream that he could be anything else than he claimed.&quot;</p>
+
+<p>&quot;It would give him a splendid chance to wander around just whenever and
+wherever he wanted to go, and nobody to ask questions. Then, when he got
+hungry, why, he could drop in at the farm. Perhaps he don't like camping
+out as well as the other fellow; perhaps his health is too delicate to
+stand roughing it. Or he might have any one of a dozen other reasons for
+carrying on this way; always providing that this is Casper Blue.&quot;</p>
+
+<p>Andy was brimful of excitement. His manner would forcibly remind one of
+the nervous tension that seizes upon the hounds when the scent grows
+strong, and they anticipate coming in sight of their quarry at any
+moment.</p>
+
+<p>&quot;We're taking a good deal for granted, seems to me,&quot; remarked Frank.</p>
+
+<p>&quot;Of course, but then see how queer it is that this man who calls himself
+a college professor, and collector of bugs and butterflies, should just
+happen to drop in here at the Hoskins farm, where the thistles grow so
+wild, and the moths and other things are to be found by thousands. We
+never heard of him in town, that I can remember. And then he's small in
+size; together with a stiff arm, that was injured in an accident; well,
+wasn't Casper Blue knocked out of his job as an air pilot by his arm
+failing him when he had to handle the levers like a flash, or have his
+aeroplane turn upside-down, Frank? I tell you I just feel dead sure it's
+our man, and that we've found the clue we want the first thing.&quot;</p>
+
+<p>&quot;Well, if we could manage to get a peep into his room perhaps we would
+run across something worth while?&quot; Frank suggested.</p>
+
+<p>&quot;We might pretend to be deeply interested in butterflies ourselves,&quot;
+remarked Andy, &quot;even if we don't really know one kind from another; and
+perhaps, if you gave Sallie a sly hint that you'd be tickled to see what
+sort of a collection her professor has with him, she'd let us look in
+his room.&quot;</p>
+
+<p>&quot;We'll make the try, anyhow,&quot; said Frank, firmly.</p>
+
+<p>&quot;But think of this Casper Blue being able to carry out the part of a
+learned professor, would you? That is something most yeggmen would find
+a pretty hard proposition, don't you say, Frank?&quot;</p>
+
+<p>&quot;Well, stop and think a little, Andy,&quot; was the other's reply to this.
+&quot;From all accounts this man isn't just a common, everyday hobo. He used
+to be known as something of an aviator before he met with that accident
+that disabled his arm, and made it impossible for him to go up again.
+And the fact is, I seem to remember having seen that name mentioned
+among a list of airmen who had been either killed, or knocked out by
+accidents happening to them.&quot;</p>
+
+<p>&quot;That's all right, Frank, but it takes a pretty smart man to carry out a
+part like he's doing.&quot;</p>
+
+<p>&quot;Didn't Larry tell us that this same Casper Blue had once been an actor
+before he took to the air for a living?&quot; asked Frank.</p>
+
+<p>&quot;You're right, he did that same thing, but somehow it seemed to have
+slipped my mind. But you never forget a single thing, do you, Frank? And
+if he used to be an actor, why, of course Casper would find it easy to
+play this part. Perhaps he's just enjoying it the best you ever heard
+of. Some people are never happy unless they're hoodwinking others.&quot;</p>
+
+<p>&quot;Let's go back and find Sallie, and get to talking about butterflies and
+gypsy moths, and all sorts of things in that line we can think of,&quot;
+suggested Frank. &quot;Then she'll believe we're head over ears interested in
+what her boarder is doing, and if I give her a little hint she may ask
+us to step in and take a peek at his room. Of course we mightn't pick up
+anything worth while there; and then again there's always a little
+chance we could.&quot;</p>
+
+<p>&quot;It's worth while, I think,&quot; declared Andy, who seldom disagreed with
+any proposition his cousin advanced, simply because Frank was usually so
+wise that he succeeded in covering the whole ground the very first
+thing.</p>
+
+<p>So they once more left the porch, though both boys looked down the lane
+before going in, to make sure that the queer little butterfly collector
+was not coming in time to interfere with their immediate plans.</p>
+
+<p>Sallie was just tidying up the diningroom when they found her. The good
+woman of the house seemed to have gone into the kitchen, where she was
+preserving some sort of fruit, or making catsup, to judge from the
+fragrant odors that came floating out from that part of the farmhouse.</p>
+
+<p>Naturally Sallie was only too willing to enter into conversation again
+with two such attractive looking and bright boys as Frank and Andy Bird.
+She must have been aware of the fact that they were favorites among the
+girls of Bloomsbury; and of course also knew something about their being
+aviators, although both or 'them had shunned that subject carefully
+while at the dinner table.</p>
+
+<p>And so Frank managed to gradually steer the conversation around to the
+subject of bug collection. He told of a friend he once had who was
+&quot;daffy&quot; along that line, and would rather capture some queer looking old
+night-flying hairy moth, with a death's-head sign on his front, than
+enjoy the finest supper, or listen to the best play.</p>
+
+<p>That allowed Andy to venture the suggestion that he had taken
+considerable interest in butterflies himself, and always wanted to see a
+collection that was worth while. Of course he did not have to explain
+that the only interest he ever did have in the matter was when, as a
+very small boy, he used to chase after the fluttering insects as they
+went from flower to flower, until shown by his mother how cruel it was
+to destroy the life of such wonderfully beautiful things, that he could
+not restore again.</p>
+
+<p>Sallie took the bait, Andy knew from the eager light that flashed upon
+her face. And when he saw her step over to a window, and look quickly
+down the lane, he turned to his cousin, and made a grimace as much as to
+say, &quot;See how she fell to my little game, will you, old fellow?&quot;</p>
+
+<p>&quot;Well,&quot; said Sallie, flitting back again, &quot;Professor Whitesides hasn't
+got a very large collection; and the new specimens he gathers day after
+day he kept in some place, because he has no time just now to do
+anything with them, he says; but come up with me, and I'll show you the
+little case he brought with him.&quot;</p>
+
+<p>&quot;Sure we will, and I'm glad of the chance to see what valuable
+butterflies look like,&quot; Andy went on to remark.</p>
+
+<p>&quot;He says this little collection is a very rare one, and worth an awfully
+large sum of money,&quot; Sallie went on to remark, in something of a
+confidential tone, as if getting the boys ready to be surprised when
+they looked upon the possessions of the industrious professor. &quot;And oh!
+if you could only hear all the queer things he's been telling us that
+happened to him in foreign lands, when he was spending ever so much
+money, and long weary months, finding these very rare specimens. Why, I
+just stand there, and look at them, and wonder how people can be so
+foolish, when it seems to me I've seen much prettier butterflies right
+out there in our fields where the thistles are blooming.&quot;</p>
+
+<p>It seemed that the room they had given the wonderful man of science was
+on the ground floor, and opened off the parlor.</p>
+
+<p>The two boys followed Sallie in, and noted her rather awed manner 5
+evidently the professor, whether he turned out to be a fraud or the
+genuine article, had succeeded in arousing both her admiration and
+wonder.</p>
+
+<p>The room was plainly yet comfortably furnished, but evidently the
+professor, like so many other learned savants, did not know such a thing
+as &quot;order&quot; existed, for things were simply topsy-turvy.</p>
+
+<p>&quot;He just won't let us sweep in here, or do the least thing,&quot; explained
+Sallie, as if she feared the boys would blame her for the looks of the
+room, &quot;you know, he's so queer, and he says we might lose something that
+he valued very highly, thinking it was not worth keeping. But here's the
+little case containing those almost priceless specimens he collected
+abroad.&quot;</p>
+
+<p>She led them to a table on which a small case rested, leaning against
+the wall. Frank took one look. Apparently the sight affected him
+strangely, for immediately he bent over closer as though to feast his
+eyes on those costly trophies which the college professor had collected
+in foreign lands.</p>
+
+<p>Andy saw that his cousin was evidently having some sort of a silent
+laughing fit, for he shook all over though not uttering a single sound.</p>
+
+<p>&quot;What ails you, Frank?&quot; he whispered, taking advantage of Sallie having
+to hurry out of the room, as her mother's voice was heard calling her in
+the kitchen.</p>
+
+<p>&quot;I'm tickled to death to meet an old friend again, that's all,&quot; replied
+Frank.</p>
+
+<p>&quot;Do you mean to tell me you've seen this wonderful collection before?&quot;
+demanded the other, like a flash, as it were.</p>
+
+<p>&quot;I most certainly do; and if you stop to think, Andy, I guess you'll say
+the same; or perhaps, now, you didn't happen to examine the case as
+closely as I did, that day last spring when we crossed over to Cranford,
+to pick up a few rare stamps for our collection at Snyder's old curio
+store.&quot;</p>
+
+<p>&quot;Why, bless me, I really believe you're right; I seem to remember seeing
+it in the show window, now, when we were looking at the little baskets
+of coins,&quot; Andy hastened to remark.</p>
+
+<p>&quot;There isn't the least shadow of a doubt about it,&quot; added Frank. &quot;Some
+time or other, when the notion came to this man to play the part of a
+butterfly collector, which perhaps the sight of the things brought to
+his mind, he just stepped into Snyder's store, and bought the old
+collection. Why, it hasn't got a single specimen that you can't find a
+thousand of, any day you look, through August and September.&quot;</p>
+
+<p>&quot;Right around here, you mean, Frank?&quot;</p>
+
+<p>&quot;Right on this farm, in fact,&quot; replied the other, with a wide grin.
+&quot;Think of the nerve of this learned scientist bringing this here, and
+telling that it represented the results of years of difficult research?
+You don't wonder, now, that I just had to snicker, do you, Andy?&quot;</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_XIV"></a><h2>CHAPTER XIV</h2>
+<br>
+
+<p>A CLUE</p>
+
+<p>&quot;That looks bad, don't it Frank?&quot; Andy went on to remark, as he first
+glanced at the bogus collection of rare specimens, and then eyed his
+cousin humorously.</p>
+
+<p>&quot;One thing is sure, no man would go to the trouble and expense of buying
+even a dollar case of common butterflies unless he had some deep object
+in view, and you know that, Andy. This so-called professor must be a
+fraud, even if he doesn't turn out to be the man we think he is.
+Perhaps, he wanting to find out whether Hoskins had discovered that
+wonderful gold mine. Well, you needn't grin about it because stranger
+things have happened, I guess, now.&quot;</p>
+
+<p>Andy ceased laughing and turned to look around the room.</p>
+
+<p>&quot;I wonder&mdash;&quot; he began, and then stopped short.</p>
+
+<p>&quot;Now I can finish your sentence for you,&quot; said Frank. &quot;You wonder if we
+could make any important discovery if we looked around here a bit,
+while Sallie is helping her ma do up some fruit jars or something like
+that?&quot;</p>
+
+<p>&quot;Perhaps it wouldn't be just the right thing,&quot; suggested Andy, in
+confusion.</p>
+
+<p>&quot;Under ordinary conditions it certainly wouldn't,&quot; his cousin went on to
+say; &quot;but when you've got a pretty good idea that you're dealing with a
+slippery hobo, actor, past-aviator, and now a bank burglar and cracksman
+in general, why that puts a different face on the matter, don't you see,
+my boy?&quot;</p>
+
+<p>&quot;All right; let's take a look,&quot; said Andy, easily convinced that since
+they were really working hand in glove with the police authorities, they
+had a perfect right to prowl around in anybody's room, and pick up such
+valuable information as could be found afloat.</p>
+
+<p>But after all they found nothing that looked like incriminating
+evidence. The fact of the matter was that the professor did not seem to
+own any sort of wardrobe whatever, and had nothing belonging to him save
+the clothes on his back, the little case of butterflies which Frank
+believed he had bought for a dollar over in Cranford at the curio
+dealer's shop, and a few bottles holding some strong smelling acids,
+which possibly were used to either kill the captured butterflies so they
+would not beat their wings out; or else to preserve certain specimens
+of bugs he expected to run across in his hunts.</p>
+
+<p>&quot;Nothing doing,&quot; said Andy, with considerable of disgust and
+disappointment in his voice.</p>
+
+<p>&quot;Come here!&quot; remarked his cousin, softly.</p>
+
+<p>&quot;Hello! don't tell me you've found something?&quot; and Andy crossed the
+floor in more or less haste.</p>
+
+<p>He found Frank bending over a table at which there were writing
+materials&mdash;pen, envelopes, paper and a blotter.</p>
+
+<p>&quot;What's doing? Have you found the gentleman's notebook lying carelessly
+around, and which we can peep into, eh, Frank?&quot;</p>
+
+<p>&quot;Not at all,&quot; came the reply. &quot;I was only looking at this blotter.&quot;</p>
+
+<p>&quot;Whatever is there funny about that?&quot; demanded the other, in puzzled
+tones, as he glanced first at the object in question, and then up at the
+face of his chum.</p>
+
+<p>&quot;It was a new one, or nearly so, you see! and somebody has been writing
+heavily, and then pressing the blotter over it,&quot; Frank went on.</p>
+
+<p>&quot;And if you could read backwards now, you might make out what they said;
+is that it, Frank?&quot;</p>
+
+<p>&quot;Oh! that part is as easy as falling off a log. I held it up to the
+looking glass here. See if you can make it out, Andy.&quot;</p>
+
+<p>Hardly had the other looked than he started to read, interjecting
+remarks of his own as he proceeded.</p>
+
+<p>&quot;Some words missing, looks like, Frank; let's see; 'Car on
+siding----'rive at 11 P.M. Wed. He says keep low, and trust to
+him&mdash;throw&mdash;track. Mum.' That's all I can make out, because he didn't
+sign any name, it seems. Whatever do you make of all that stuff, Frank?&quot;</p>
+
+<p>First of all Frank pulled out a pencil and copied the marks upon a piece
+of paper, which he thrust into his pocket.</p>
+
+<p>&quot;He might miss the blotter if I cribbed it, and take the alarm,&quot; he
+explained, as he hastened to put the article in question back on the
+table, lest Sallie come in at any minute and discover what they were
+doing, taking liberties in the room of the boarder; and then she would
+have to be told everything, which might work out badly, Frank feared.</p>
+
+<p>&quot;But I reckon you've got some sort of idea what that writing means,
+Frank?&quot; pursued the other Bird boy, who, once he started on a subject
+could no more be shaken off than a bulldog.</p>
+
+<p>&quot;Of course I have, and it's given me something of a shock, too, let me
+tell you, Andy. First of all, you may know that this very day is
+Wednesday.&quot;</p>
+
+<p>&quot;The day he mentions there; to be sure it is. But Frank, can all this
+have some reference to another crime they mean to commit?&quot;</p>
+
+<p>&quot;I'm afraid it does,&quot; came the reluctant reply.</p>
+
+<p>&quot;Tell me what he means by 'car, siding, track, mum,' and all that. Of
+course I can understand that he warns the fellow he's sending the
+message to to keep quiet. What car can he mean? Do you think they aim to
+steal some one's expensive car now&mdash;that they've gone and wrecked
+Percy's biplane, and must have another means for getting away?&quot;</p>
+
+<p>But Frank simply shook his head at that.</p>
+
+<p>&quot;Oh! you're away off your base there, Andy. He speaks of a car on a
+siding, and that can only refer to a railroad car. Now, I happen to know
+that they expect the pay-car to be along some time today or tonight, and
+it always lies there on that Jeffreys Siding, until they've passed out
+thousands of dollars to the men who call Bloomsbury their headquarters.
+Do you see now what it must mean, Andy?&quot;</p>
+
+<p>Andy gasped, and then exclaimed.</p>
+
+<p>&quot;Once more you've gone and seen through the riddle that knocked me
+silly, Frank. That's just what it must mean&mdash;the pay-car would offer fat
+pickings, all in cash; and they've held up their flight to Canada just
+to try and gobble it. Oh! what a slick game, with Todd giving false
+information, and perhaps just leading the police further and further
+away from Bloomsbury tonight, so as to leave the pay-car next to
+unprotected. Yes, and doesn't he go on like this, 'he says keep low, and
+trust to him'? That must mean Todd, don't you think?&quot;</p>
+
+<p>&quot;I read it that way,&quot; replied his cousin tersely, as he rubbed his chin
+in a reflective fashion; for they were now grappling with a dangerous
+problem, and Frank was only too well aware of the fact that a slip might
+upset all calculations, as well as possibly endanger their lives; since
+they were dealing with reckless men, and no boyish rivals like Percy
+Carberry and Sandy Hollingshead.</p>
+
+<p>&quot;Do you think this was meant for the other one of the bank thieves?&quot;
+Andy went on to ask.</p>
+
+<p>&quot;It could hardly have been for any one else, Andy. There must have been
+more to the letter, but the rest dried before he blotted it.&quot;</p>
+
+<p>&quot;And that fellow is in hiding somewhere, perhaps watching the biplane,
+and ready to fight before letting it be retaken, because they depend on
+it for their get-away to the great lakes and Canada;&quot; Andy further
+observed.</p>
+
+<p>&quot;Yes, just as you say,&quot; the other remarked.</p>
+
+<p>&quot;And now since we've learned this much, Frank, what are we going to do
+about it&mdash;try and find where the stolen biplane is, and do something so
+as to make it no good for their purpose; or just slip away, go round a
+little like we were just out for a spin, and getting back to Bloomsbury,
+put them wise?&quot;</p>
+
+<p>&quot;Neither, just yet anyhow,&quot; the older Bird boy remarked. &quot;Not the first,
+because it would be taking big chances, if, as we believe, one of the
+robbers is concealed near where the stolen biplane may happen to be
+lying, partly hidden with dead leaves, so it couldn't be noticed from
+above; and he would be apt to do something we'd find unpleasant. And as
+for going back and telling, we'll have to be mighty careful there.&quot;</p>
+
+<p>&quot;And why, Frank?&quot;</p>
+
+<p>&quot;Well, to begin with, even the walls have ears, they say; and if the
+police were suddenly called back from their hunt to the southwest, the
+fact might get to the robbers; and you know what would happen then.&quot;</p>
+
+<p>&quot;Oh!&quot; said Andy, shrugging his shoulders, &quot;I suppose they'd just throw
+this second job up, and cut stick for Canada, as fast as they could
+make the aeroplane spin, which would be too bad for Chief Waller, and
+Joe Green, and the rest of that bunch at Headquarters, who are already
+figuring on how they'll spend their reward money they hope to get when
+the bank pays for rounding-up the two thieves.&quot;</p>
+
+<p>&quot;But, perhaps, if we just told our fathers, Andy, they might get a few
+bold men together and lay a beautiful trap for the fellows so that when
+they broke into the pay-car, they would be made prisoners.&quot;</p>
+
+<p>&quot;Bully idea, that, Frank, and I hope you decide to carry it out. Just to
+think what a pleasant surprise it would be for our butterfly collector,
+expecting that he was going in to gather in another lot of plunder, and
+then to hear a voice say to him: 'Hands up! you're our prisoners!' Oh!
+wouldn't I like to be Johnny-on-the-spot when that happens. Wonder if
+they wouldn't let us have a part in the proceedings, after we brought
+the news that upset the plans of the yeggmen?&quot;</p>
+
+<p>&quot;That will do for just now, Andy, because here comes Sally again. Let's
+be gaping at the wonderful collection that almost cost the professor his
+very life in all sorts of hot countries, as well as a whole pocket full
+of money&mdash;if you don't care what you say.&quot;</p>
+
+<p>And when the farmer's daughter did enter the room a minute later, she
+saw the two boys standing there, a rapt look of admiration and envy on
+their faces, as they stared at the little case of common local
+butterflies which possibly some boy had gathered together, and then
+disposed of for a song.</p>
+
+<p>While the young aviators had in this fashion about decided on their plan
+of action, they saw no reason for any hurry. The day was still long, and
+when they felt like starting toward home it would take them but a very
+short time to get there.</p>
+
+<p>Meanwhile, there seemed to be some sort of fascination holding them to
+the neighborhood of the Hoskins' farm. And when they went away a little
+later it would be with the idea of hanging about, and seeing if the odd
+little professor might not come along. Both of them thought they would
+like to look at him. The man who was capable of playing such a clever
+game as this must surely be worth seeing.</p>
+
+<p>Then again, the fact that Casper Blue once upon a time had been a daring
+birdman had something to do with this interest on the part of Frank and
+his cousin, because there is always a certain fellow feeling between
+those who are engaged in the same dangerous pursuits. But possibly Andy
+on his part was hoping secretly that by spying around they might be able
+in some way to learn where the yeggmen had hidden the plunder they had
+taken from the looted Bloomsbury bank.</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_XV"></a><h2>CHAPTER XV</h2>
+<br>
+
+<p>WHEN CASPER CAME BACK</p>
+
+<p>Although the Bird boys had more than once before proved that they
+possessed all the courage and daring a successful aviator must have in
+order to accomplish the difficult tasks hourly presented to him for
+solution, it must not be thought that they were reckless to any degree.</p>
+
+<p>Andy might be slightly inclined that way, but Frank was an exceedingly
+careful navigator of the air, and by degrees his influence was even
+affecting his younger cousin, as example always will.</p>
+
+<p>When, however, a situation suddenly arose that absolutely required a
+display of daring, these young air pilots were &quot;there with the punch,&quot;
+as Andy termed it. They had learned how to volplane earthward from a
+dizzy height with absolute safety, when conditions were just right, and
+necessity required a quick descent. On a few occasions Frank had even
+been known to hazard what is known as the &quot;death dip;&quot; but it was only
+when there happened to be a good reason for taking such chances, and not
+merely in a spirit of dare-deviltry, such as many show aviators employ,
+just to send a shiver of dread through the spectators, and then laugh
+recklessly at the fears their boldness had aroused.</p>
+
+<p>Of course they might have decided to immediately return to Bloomsbury,
+and give information concerning the extent of their discoveries since
+coming to the Hoskins' farm.</p>
+
+<p>Perhaps that would have been the wisest move they could make but both
+boys were rather opposed to carrying it out just then.</p>
+
+<p>The afternoon was wholly before them, and who could tell what change of
+plans the two yeggmen might make before the coming of the night? Should
+they get wind of the presence of the Bird boys in the vicinity possibly
+they would take alarm, and hurrying to their concealed biplane make for
+the far North with all haste; and in this way, if no one knew of their
+departure the intended ambuscade that night in the vicinity of the
+railroad pay-car would be laid in vain.</p>
+
+<p>That was really what the boys feared the most&mdash;that their quarry slip
+off in secret, when they were far away.</p>
+
+<p>Frank was indeed trying to figure out whether it would not be best after
+all for him to stay by the hydroplane, on guard as it were, while Andy,
+by using a horse, if the Hoskins happened to still possess such an
+animal, managed to get to another farm, where they were up-to-date
+enough to have a telephone in the house, by means of which he could get
+in touch with Dr. Bird or Judge Lawson in Bloomsbury.</p>
+
+<p>Then again, there was always a slight chance that this pretended
+professor might have seen them descend, while he was wandering around.
+Once an airman, and just by instinct as it were, the eyes are almost
+constantly searching the heavens, perhaps for a glimpse of other
+adventurous craft, or it may be, signs that give warning of treacherous
+winds, gathering storms, or similar things that must always be of
+intense interest to an aviator.</p>
+
+<p>And so while Casper Blue had long since given up taking hazards in a
+flying machine to indulge in even more dangerous business as a bank
+robber, still habits would cling tightly, and thus he might have seen
+more than the ordinary man could have done.</p>
+
+<p>Of course, even though he sought the hydroplane, and found it lying
+there in the field, he could not very well make any use of it so long as
+Frank held the missing part in his possession.</p>
+
+<p>But he could in a spirit of maliciousness so utterly destroy the planes,
+and even injure the powerful little Kinkaid engine that it would be
+practically fit only for the scrap-heap afterwards. And that was giving
+Frank more or less concern, even while he continued to linger at the
+farmhouse because Andy wished to prowl around a little while longer in
+hopes of getting some clue to the location of the cache where the
+thieves had hidden their plunder.</p>
+
+<p>Sallie saw nothing strange in this apparent desire of Andy to hang
+around. She was rather a pretty little thing, and of course knew it; so
+that she may have believed the witchery of her attractions had more or
+less to do with the matter.</p>
+
+<p>Even when Frank asked so many queer questions about the absent boarder,
+Sallie was not wise enough to understand that the boys Were much more
+concerned about how Professor Whitesides amused himself, where his
+favorite lounging places seemed to be, and all that, rather than in her
+pretty face and merry laugh.</p>
+
+<p>Her mother must have counted on having her assistance in carrying on her
+task of putting up preserves in the kitchen, for once more she called to
+Sallie to come and lend a hand for a few moments.</p>
+
+<p>This left the two boys alone again, and gave them a chance for
+exchanging views, which they were not slow to do.</p>
+
+<p>&quot;I guess he doesn't keep it around here, in this room, or anywhere close
+by,&quot; was Andy's first remark.</p>
+
+<p>Frank chuckled on hearing this.</p>
+
+<p>&quot;Oh! I see that you've got your mind set on recovering what was taken
+from the bank. You're a mercenary fellow, Andy. But, then, since our
+fathers have more or less interest in the same bank, which is going to
+be mighty badly crippled if the cash and securities are not recovered
+sooner or later, why, I can't blame you much. I'd like to run across the
+loot myself, more than I can tell you.&quot;</p>
+
+<p>&quot;I'm only afraid that if the men are taken prisoners to night, when they
+come to clean out the pay-car after it arrives in Bloomsbury, they'll
+not have this other stuff with them, and will refuse to tell where it's
+hidden. That will be just as bad for the bank as if they'd got away to
+Canada with the swag, as the Chief calls it. I wish I knew how we could
+track this Casper Blue to where the other yegg is hiding near the
+biplane, and watch them until we saw where they had the cache. After
+that we could just hang around, and when they started in a power-boat
+perhaps for Bloomsbury, with Todd Pemberton at the wheel, we could do
+something to make the biplane useless to them, and then toward evening
+put for home ourselves.&quot;</p>
+
+<p>Frank listened while the other ran all of this off, and evidently he was
+more or less amused at what he heard.</p>
+
+<p>&quot;It's plain to be seen that you've been doing some tall thinking and
+planning all this while, Andy,&quot; he remarked.</p>
+
+<p>&quot;But you'll admit, I guess, that if there was any way to carry out my
+scheme, it would be a jim dandy idea,&quot; the other persisted.</p>
+
+<p>&quot;Of course; but that's where the trouble lies. Even if Casper did come
+back, we never could track him through the woods and around the swamps
+without his sooner or later discovering that he was being followed,
+because we're not clever at that sort of thing. And once he got wind of
+our being after him, chances are he'd lay some trap with his mate, into
+which both of us would tumble headlong.&quot;</p>
+
+<p>Andy scratched his head, and a look of doubt came upon his face.</p>
+
+<p>&quot;H'm! I wouldn't like that one little bit, and that's a fact, Frank,&quot; he
+admitted, candidly. &quot;If we fell into their hands and were kicked around
+and then left tied up like a pair of mummies from the pyramids of Egypt,
+while they went and cleaned out that pay-car, and sailed away for
+Canda&mdash;oh! excuse me, if you please. Anything but that. The laugh would
+sure be on the Bird boys. I don't mind posing once in a while as a hero;
+but it would jar me a whole lot to know that people were pointing me
+out, and telling how nicely these wonderful Bird boys had been taken in
+and done for by a couple of traveling yeggs. Have it your own way,
+Frank, and don't pay any attention to my silly schemes.</p>
+
+<p>&quot;Your ideas are all right, Andy, but the only trouble is they are too
+strong for a couple of boys to carry out. I think we'd be wise to play
+safe. More games are won in the long run that way, than by being dashing
+and venturesome.&quot;</p>
+
+<p>&quot;Of course you're right, and as I've had my little fling, and got it out
+of my system, let's work along the sensible lines you laid out, Frank.&quot;</p>
+
+<p>That was just like Andy. He might occasionally seem to yearn to break
+loose, and take a wild flight, but on second sober thought he nearly
+always came back to his cousin's way of thinking.</p>
+
+<p>Sallie still remained in the kitchen, so that they were able to keep on
+talking without any fear of being interrupted or overheard.</p>
+
+<p>&quot;I'm wondering if Percy will ever have the chance to handle his Farman
+biplane again,&quot; Andy went on to remark. &quot;He seemed to set a great store
+by it to offer such a nice fat reward for its return. And it's so brand
+new that he hasn't had much of a chance to try it out. Wasn't he mad,
+though, when he came racing along in that car looking for Chief Waller.
+He looked as red as a turkey gobbler. Just to think that while he was up
+there with three of his cronies trying to injure our machine, those
+yeggs were fixing it all up so that they could get his biplane, if they
+missed ours. It's a rich joke on Perc.&quot;</p>
+
+<p>&quot;Oh! I hope he gets it back again safe and sound,&quot; said Frank. &quot;Life
+would be rather tame for us around home here, if we didn't have Percy to
+think about. For a long time, now, he's kept us guessing, and we'd feel
+a little lonely if he gave up flying.&quot;</p>
+
+<p>&quot;Guess you're right there, Frank, it would seem humdrum like if we
+didn't have to think of him every little while, and what new schemes he
+was planning to get the better of the Bird boys. And say, some of his
+games kind of dazzle a fellow, if only there wasn't so much meanness
+about 'em. When Perc gets to hating a fellow he doesn't stop half way,
+but goes the whole hog. Why, more than a few times he's given us a big
+scare, trying to do some stunt that would make us look small; and at the
+risk of sending us all down a thousand or two feet. After all, I'm
+beginning to believe I'd sleep sounder if Percy Carberry took to some
+other play, and let aeroplanes alone.&quot;</p>
+
+<p>&quot;Well, he seems just as wild about them as ever, and so I reckon he'll
+just keep on bothering us to the end of the chapter. But what are you
+looking at, Andy?&quot; and Frank also turned his eyes down toward the fringe
+of quince trees that marked the old lane leading to the barnyard from
+the road.</p>
+
+<p>&quot;I thought I saw some one coming over there, and if it turned out to be
+our good friend, the profess, p'raps we'd be wise to skip out before he
+sighted us, Frank.&quot;</p>
+
+<p>&quot;Here, let's step back out of sight, anyhow, so as to be ready to slip
+away if it is our man,&quot; and Frank drew his companion around the corner
+of the house, from which point they could still keep watch over the
+lane.</p>
+
+<p>Half a minute later Andy whispered:</p>
+
+<p>&quot;There, I saw him again, Frank, and as sure as anything it must be
+Casper. He's a little man, wearing brown glasses to keep the bright sun
+from his eyes, and yes, he's carrying a butterfly catcher's net over his
+shoulder. Shall we disappear?&quot;</p>
+
+<p>&quot;I think that would be our best move, Andy; and lucky enough we've got
+the chance to slip around here, and get back of the barn before he comes
+along,&quot; with which the two boys hastened to follow out the plan
+suggested.</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_XVI"></a><h2>CHAPTER XVI</h2>
+<br>
+
+<p>THROWING OFF THE MASK</p>
+
+<p>&quot;Do you think he saw us, Frank?&quot; asked Andy, after they had found a
+place where they could peep around a corner, without being discovered.</p>
+
+<p>&quot;Well, that's more than I can say,&quot; the other replied. &quot;We took every
+precaution, and unless he has mighty sharp eyes he couldn't have
+glimpsed us.&quot;</p>
+
+<p>&quot;And you think it's safe for us to stay here, eh, Frank?&quot;</p>
+
+<p>&quot;Certainly,&quot; replied the other. &quot;We're in a position to make a move any
+old way from here. There isn't one chance in ten of his coming around
+the corner; and if he does make a show of doing that, why we can be
+sitting here, playing mumble-de-peg, or something like that, just as if
+we didn't care whether school kept or not.&quot;</p>
+
+<p>&quot;Bully for that; who cares for expenses? Look, Frank, I was right, you
+see, for it was the little profess after all.&quot;</p>
+
+<p>&quot;Yes, sure enough. Careful now, Andy, and don't let him see you
+peeping. That'd give the whole thing away quicker than anything else.&quot;</p>
+
+<p>They had both selected positions where they could see without attracting
+attention. And it was with considerable eagerness that they fastened
+their eyes on the figure of the small, wiry man who was sauntering along
+toward the farmhouse, carrying a butterfly-net across one shoulder,
+while with his other hand he held a queer-shaped black case, which, as
+Sallie said, contained his more recent captures in the way of beautiful
+and rare moths and insects.</p>
+
+<p>&quot;That's his stiff arm, Frank; see how he moves it&mdash;the one hanging down,
+I mean, with black box&mdash;good gracious! now, I wonder&mdash;&quot;</p>
+
+<p>&quot;H'sh!&quot; whispered Frank, &quot;not so loud; he might hear you.&quot;</p>
+
+<p>&quot;Not with the roosters crowing like they are,&quot; said Andy confidently.
+&quot;But just glimpse the black box would you, Frank?&quot;</p>
+
+<p>&quot;I am looking,&quot; returned the other.</p>
+
+<p>&quot;He calls it the receiver for his new butterflies, but looks more like a
+kodak to me,&quot; Andy went on. &quot;But d'ye know what I thought, Frank?&quot;</p>
+
+<p>&quot;Tell me,&quot; whispered the other, still watching the professor, who had
+come to a stop at some little distance away, and seemed to be busily
+engaged looking back of him, as though laying out plans for an afternoon
+campaign among the bright winged butterflies.</p>
+
+<p>&quot;Why, how easy for him to tear out the inside works of a camera box like
+that, and make use of it for a better purpose, see?&quot; Andy went on to
+say.</p>
+
+<p>&quot;Oh! now you've got a bright thought for a fact,&quot; Frank sent back,
+careful not to raise his voice above that cautious pitch.</p>
+
+<p>&quot;Well, it could be done; and I guess that little black box'd hold about
+all the money and securities that the bank lost. They say the thieves
+only picked out the papers they could dispose of, and left all the rest,
+which would indicate that the second yegg must have been in the banking
+line, some time or other, and knew what was what.&quot;</p>
+
+<p>&quot;H'sh! he's coming on again! Lie low, now; Andy!&quot;</p>
+
+<p>Accordingly both of them remained perfectly motionless as the professor
+advanced toward the house. Had he shown any disposition to head toward
+that particular corner Frank was ready to assume an attitude of
+indifference and appear to be engaged in some boyish game with his jack
+knife, tossing it up in the air, and causing the point of the long
+blade to stick upright in the ground.</p>
+
+<p>But the small man with the brown glasses and the butterfly net made
+straight for the front porch of the house, and passed in at the door,
+just as though he felt perfectly at home there.</p>
+
+<p>&quot;Well, what next?&quot; remarked Andy.</p>
+
+<p>For reply the other beckoned, and started hurriedly to gain the shelter
+of the woodshed near by.</p>
+
+<p>&quot;What's this for?&quot; questioned Andy, when they were once more crouched
+down, in a position where they could not be easily seen.</p>
+
+<p>&quot;Stop and think,&quot; answered the other; &quot;if he just happened to look out
+of a window on this side of the house he'd see us easily and our
+suspicious actions would tell him we were on to his game. Now even if he
+looks he won't see anything.&quot;</p>
+
+<p>&quot;Huh! and do we stay here all afternoon just doing nothing; while p'raps
+he's taking a nap indoors?&quot; grumbled the other, who wanted to be moving,
+and was never satisfied when not in action.</p>
+
+<p>&quot;Wait!&quot; was all Frank would say.</p>
+
+<p>Perhaps he could see further ahead than his cousin, and guessed
+something of what was likely to occur. They had not taken pains to warn
+Sallie or her mother to keep from mentioning the fact of their happening
+around; and chances were, that as soon as Casper Blue heard that the
+Bird boys had dropped in, he would become immediately suspicious.</p>
+
+<p>On questioning the girl he would be apt to learn how curious Frank and
+Andy had seemed about him; and Sallie might even admit that they had
+asked to see his wonderful collection of rare and costly butterflies.</p>
+
+<p>Well, if such a thing did occur, of course the keen-witted man would
+immediately know that the cat was out of the bag. Realizing that there
+must be a great hue and cry throughout the entire county just then, with
+reference to the yeggs who had looted the bank, he could easily imagine
+what had brought these boys here.</p>
+
+<p>Through association with Todd Pemberton, Casper must have learned a
+whole lot with regard to Frank and his cousin. Being an aviator himself
+he would naturally take an immediate interest in boys who had given such
+a good account of themselves in the field of aeronautics. The attempt to
+steal the hydroplane in the first place before they turned to Percy
+Carberry's biplane proved that they knew all about the Bird boys. And
+so, learning of their presence would immediately give Casper warning
+that his hideout was no longer a secret, but that the net of the law
+must be closing around him.</p>
+
+<p>What then?</p>
+
+<p>Would he, like a desperate man, attempt to capture these venturesome
+lads, so as to keep them from informing the authorities at Bloomsbury?
+Either that, or else he would think that, since the game was up, and
+they could no longer loiter in the neighborhood of the aroused district
+in order to carry out the second part of the great scheme, they had
+better take to the aeroplane and vanish from view, leaving no trail
+behind by means of which they could be followed.</p>
+
+<p>Frank had said all this in his mind when he lay there and waited to see
+what would turn up. He felt that they could surely afford to linger for
+some time, if there was any chance of learning whether the yeggmen meant
+to change their plans, or proceed to carry out their original scheme.</p>
+
+<p>All seemed quiet at the farmhouse.</p>
+
+<p>Sallie had come out on the porch, and looked rather disappointed to find
+that the two boys had strangely vanished. She stood there glancing
+around in a puzzled manner for several minutes, and then with a pretty
+shrug of her shoulders, and a pout of her lips whirled about and went
+back into the house again.</p>
+
+<p>&quot;Wow!&quot; said Andy in a low tone, &quot;she's got it in for you, Frank, because
+you dropped out of sight without even so much as saying goodbye.&quot;</p>
+
+<p>But the other was thinking of weightier matters than the humor of a
+little coquette. He wondered whether Sallie would run across the
+professor and ask him if he had met two boys down the lane; which remark
+would excite his suspicions, and lead to other questions, now on his
+part.</p>
+
+<p>If nothing happened inside of half an hour. Frank was of a mind to try
+the plan that had come to him&mdash;sending Andy off to try and reach some
+other farm where they would have a telephone; while he himself remained
+to keep watch.</p>
+
+<p>That might necessitate taking Sallie into their confidence, for they
+would need to ask questions, and perhaps borrow a horse. On second
+thought Frank was now a little sorry he had not seen fit to tell the
+girl all. She seemed to be fairly clever, and could possibly keep a
+secret. At any rate, the chances of discovery would not be nearly so
+serious as now, when in her ignorance she was likely to blurt out all
+about the boys having been there, without knowing that in so doing she
+might be assisting clever yeggmen to avoid arrest.</p>
+
+<p>The seconds moved along and changed into minutes.</p>
+
+<p>If the professor had come to a window on that side of the house to look
+anxiously around, he must have been careful not to expose himself, for
+though Frank had kept a keen lookout he had failed to see anything of
+him.</p>
+
+<p>It was getting very much of a bore to Andy. He changed his position
+restlessly several times, as though he wished Frank would make some sort
+of a move, he hardly cared what its nature so long as it meant action.</p>
+
+<p>But although Andy could not see it at that moment, there were lively
+enough times ahead of them to please even his impetuous nature. And the
+passage of every minute brought the crisis closer and closer.</p>
+
+<p>Once Frank believed he heard loud voices inside the farmhouse; and at
+the same time some one was certainly hurrying back and forth. But then
+possibly that might be only Sallie, obeying another call from the
+kitchen, where the good woman was so busily engaged with her canning
+operations.</p>
+
+<p>Something like twenty minutes must have passed since the boys made
+their change of base. To Andy it was much longer, for he felt the time
+pass as though it had leaden wings.</p>
+
+<p>Then Frank, watching, saw some one come hastily out of the front door,
+pass quickly down to the path, and move away in the direction of the
+lane.</p>
+
+<p>&quot;He's going off, Frank!&quot; exclaimed Andy, all excitement, just as though
+he half expected that his companion would give the word that meant an
+immediate pursuit.</p>
+
+<p>&quot;Yes; keep quiet, Andy!&quot;</p>
+
+<p>&quot;But he'll give us the slip, don't you see?&quot; persisted the other.</p>
+
+<p>&quot;Let him, then; we can't help it. You can see that he's made quite a
+change in his looks, as though he's thrown the mask off, and doesn't
+expect to play the part of a collegeman and a bug collector any more,&quot;
+Frank whispered.</p>
+
+<p>&quot;That's so, he hasn't got the brown glasses on, and that old butterfly
+net is missing; but Frank, just notice, won't you, how he hangs to that
+little camera-like black box. Say, perhaps I was right after all;
+perhaps Casper Blue is carrying all that stuff cribbed from the
+Bloomsbury bank, inside the same.&quot;</p>
+
+<p>The two boys crouched there behind the woodshed and by cautiously
+peeping around the corner could watch the late boarder of the Hoskins
+hurrying down the lane, as though he had received a hasty summons from
+the president of his college demanding an immediate return.</p>
+
+<p>He seemed uneasy and suspicious, for several times he turned his head
+and looked this way and that, as though half expecting to discover some
+person ready to dispute his departure. And Frank also noted the way one
+of his hands had of keeping in the pocket of his short coat; just for
+all the world as though he might be grasping some sort of pistol that
+was concealed there.</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_XVII"></a><h2>CHAPTER XVII</h2>
+<br>
+
+<p>SALLIE RIDES BAREBACK</p>
+
+<p>&quot;And now what's our next move?&quot; demanded Andy, who generally found it
+very nice to let Frank do all the planning, though capable of taking
+hold himself when forced to do it.</p>
+
+<p>Fortunately Frank had a great way of figuring out what he would do under
+certain conditions. This gave some sort of assurance when difficulties
+arose; for there was little time lost in fixing things up so as to have
+a programme.</p>
+
+<p>&quot;No use trying to follow after him, to begin with,&quot; he declared.</p>
+
+<p>&quot;Why do you say that?&quot; his cousin wanted to know.</p>
+
+<p>&quot;First of all, it would be a bad business, because he's on his guard,
+and a desperate man,&quot; Frank went on to explain. &quot;You can see that he's
+ready to pull out a weapon of some sort at the first warning. And we
+settled that we didn't want to fall into the hands of these two bad men.
+So we'll have to arrange things along a different line. And anyhow
+there's no terrible hurry, because I rather guess they've got the
+biplane hidden some distance away from here. It would take half an hour,
+perhaps much more, before they could get out. And we can reach our craft
+in a few minutes, if pushed.&quot;</p>
+
+<p>&quot;Yes, that's all so, Frank; but go on, and tell me the rest.&quot;</p>
+
+<p>&quot;I was thinking that we ought to try and let our folks know how things
+are going with us, so that if we have to cut out after these yegg
+aviators they'll know where we've gone. Suppose, now, you hunt Sallie
+up, and try to explain it all to her just as fast as you can.&quot;</p>
+
+<p>&quot;Who, me? Oh! well, I guess I can do it, if I have to. But what will you
+be doing all that time, Frank?&quot;</p>
+
+<p>&quot;I want to write a message to either your father, or else Judge Lawson,
+whichever she can get on the phone,&quot; replied the other, immediately
+hunting in his pockets for pencil and paper, which he made it a habit to
+carry around with him always.</p>
+
+<p>&quot;She&mdash;say, do you mean Sallie, Frank?&quot;</p>
+
+<p>&quot;No other. You must coax her to saddle up a horse, and make for the
+nearest neighbor where they've got a phone; get that, Andy?&quot;</p>
+
+<p>&quot;But do you think she will?&quot; asked the other, dubiously.</p>
+
+<p>&quot;I'm dead sure of it,&quot; came the confident reply. &quot;Sallie has a touch of
+romance in her make-up; and besides, shell be so mad to think of that
+man deceiving her mother that she'll want to have him caught. Get along
+with you, now, Andy, and fix it all up inside of ten minutes. I'll have
+the message written out by that time, so she can start, if there's such
+a thing as any kind of a horse around this wreck of a farm.&quot;</p>
+
+<p>And so Andy, glad at least to have something to do, hurried toward the
+house to look for the country girl.</p>
+
+<p>Left alone, Frank continued to write as plainly as he could what he
+wanted those in Bloomsbury to know about matters in general. He used as
+few words to cover the case as possible, but gave the leading points,
+even to stating his fear that the scoundrels who had robbed the bank,
+and were plotting to also make a descent on the pay-car of the railroad
+that night, had now taken the alarm, and would be off in the stolen
+biplane.</p>
+
+<p>In that event Frank wanted the police in Bloomsbury to know that he and
+Andy had started in pursuit; though what they could do to apprehend the
+rogues of course he was in no position to declare.</p>
+
+<p>By the time he had this finished to his satisfaction he heard voices
+near by, and was glad to see his cousin coming, accompanied by Sallie.</p>
+
+<p>The girl looked duly excited, just as Frank had expected. There were a
+thousand questions in her eyes, but he cut all this short.</p>
+
+<p>&quot;We can't stop to tell you any more now, Sallie, but we promise to drop
+in again after it's over, and explain all that seems queer to you now.
+Here's the message that we want to get to Bloomsbury the worst kind, and
+as quick as you could get on a horse and ride to the nearest neighbor
+who has a phone in the house. You'll do this for us, won't you, Sallie?&quot;</p>
+
+<p>Few people could say no to Frank once he wore that winning smile, and
+Sallie immediately declared that she was ready to do anything he
+suggested.</p>
+
+<p>&quot;To think of that little scoundrel fooling us all, and pretending to be
+a college professor!&quot; she remarked, indignation flashing from her black
+eyes.</p>
+
+<p>&quot;I hope you've got a horse,&quot; said Frank, sticking to the business in
+hand.</p>
+
+<p>&quot;Oh! yes; we have one left that might do,&quot; Sallie answered.</p>
+
+<p>&quot;Then let's get him saddled right away,&quot; Frank went on.</p>
+
+<p>&quot;Can't,&quot; she snapped back, &quot;ain't such a thing as a saddle around here
+any more. But I'm a country girl, you know, and I can ride bareback all
+right. A halter's the only bridle I want, Frank. Give me the message,
+and I'll see that it gets to somebody in Bloomsbury.&quot;</p>
+
+<p>&quot;And here's some money, Sallie,&quot; the other went on.</p>
+
+<p>&quot;What! do you think&mdash;&quot;</p>
+
+<p>&quot;There might be something to pay, you know, and we can't afford to take
+chances when there's so much at stake. Thank you a thousand times for
+helping us out, Sallie. Now, please get the horse. I'd like to see you
+started before we pull out, because we may have to chase after these
+fellows in our aeroplane, if they take a notion to fly away.&quot;</p>
+
+<p>The girl hastened to lead the way into the stable where they did find
+an apology for a horse, which she immediately unhitched, and led
+outside.</p>
+
+<p>&quot;Hope she doesn't happen to run across that man on the way, because he
+might wonder what was taking her off like that, and do something to turn
+her back. What if he found your message on her, Frank?&quot; and Andy, as he
+said this, turned an anxious gaze upon his cousin.</p>
+
+<p>But Frank shook his head.</p>
+
+<p>&quot;I saw him dodge out of the lane and take to the woods,&quot; he remarked,
+&quot;as though he knew of a short-cut across lots to the place where his
+friend and the biplane were hidden. No danger of his seeing Sallie, so
+don't mention it to her. Wait, I'll give you my hand to help you up,
+Sallie!&quot;</p>
+
+<p>But the country girl had led the horse alongside the drinking trough,
+and was on his back in a jiffy, long before Frank could come across.</p>
+
+<p>&quot;Goodbye, and good luck, boys!&quot; she called back, as she gave the horse a
+switch with the end of the halter, and was off at a lumbering pace.</p>
+
+<p>They stood there a minute or so watching the girl flying down the lane.
+She turned around once, and waved her hand at them, while her long hair
+blew behind in a cloud. Frank would not soon forget the sight of Sallie
+Hoskins going to carry the news to a point where it could be telephoned
+in to town&mdash;news that would cause a tremendous wave of excitement to
+pass over the whole of Bloomsbury.</p>
+
+<p>&quot;Hurrah! that's done, and well done too, Frank, I say!&quot; exclaimed Andy,
+turning on his cousin with a face that plainly said, &quot;What's next on our
+programme?&quot;</p>
+
+<p>&quot;Before we pull out I guess we owe it to the good woman to tell her
+something of the truth, for I don't believe she knows a single thing
+about it from Sallie or the professor. So come along to the kitchen with
+me, Andy. Then we'll chase off to where we left our aeroplane, and stand
+ready for anything that may happen.&quot;</p>
+
+<p>The two of them quickly reached the kitchen door. Inside they found Mrs.
+Hoskins, tired looking and red of face, still busily engaged with her
+canning operations; for peaches were ripe, and tomatoes needing
+immediate attention if she hoped to lay away her customary stock for the
+coming winter.</p>
+
+<p>She came to the door where it was cooler, a look of rising curiosity on
+her patient face. And Frank started in to tell what he thought
+necessary. She was at first much worried to learn that she had been
+innocently harboring a criminal under her humble roof; but Frank soon
+allayed her fears on that account.</p>
+
+<p>He also told her how Sallie had consented to ride over to a neighbor to
+send a telephone message for him, so that the good woman might not be
+worried over her absence.</p>
+
+<p>And now, having done what he considered his duty, Frank began to think
+it might be the part of wisdom for himself and his cousin to consider
+their own affairs, and make for the spot where their hydro-aeroplane
+lay in the field.</p>
+
+<p>&quot;Oh! I do hope they are caught,&quot; said the farmer's wife. &quot;Just to think
+of that easy talking little man being a desperate criminal! I shall be
+afraid to stay all alone in the house after this.&quot;</p>
+
+<p>&quot;Listen, Frank; somebody's shouting out there. What if both of those
+yeggs are coming back to get us?&quot;</p>
+
+<p>Andy had clutched the sleeve of his cousin's coat when saying this; but
+Frank did not need to be told that something like excitement was bearing
+down upon them.</p>
+
+<p>&quot;Oh! it's Jerry, my husband!&quot; exclaimed Mrs. Hoskins just then, &quot;and he
+seems to be dreadfully excited, too. Listen to him calling to me! I
+wonder what could have happened. What if he's gone and cut himself
+badly, always digging and making holes in the ground, since that silly
+old fortune teller said he would find a mine on the farm. And here he
+comes too!&quot;</p>
+
+<p>Just then a figure came staggering around the corner of the house. It
+was the old farmer, plainly tremendously excited, and although weak and
+almost out of breath from running, trying to tell her something.</p>
+
+<p>&quot;It's there, Jennie&mdash;found it, wife&mdash;ain't had all my work for nothin'
+I tell you! A vein of hard coal, think, enough to make us all rich! D'ye
+hear that, Jennie, girl, rich! Gimme a drink of water, for I'm nigh dead
+from runnin' to tell you the great news. Who's these boys, wife? Where's
+Sallie at?&quot;</p>
+
+<p>Frank would have liked very much to remain and hear the particulars of
+the farmer's good luck in locating a vein of coal on his property; but
+time would not permit. He only hoped Hoskins was not mistaken, for
+traces of coal had been known to exist around that neighborhood for some
+time, though up to now none had been found in paying quantities for
+mining purposes.</p>
+
+<p>&quot;Come on, Andy, we'll have to be skipping out. Please tell your husband
+all you know about what's happened, Mrs. Hoskins. Hope you have struck
+it rich, sir.&quot;</p>
+
+<p>With that Frank hurried off, Andy trailing behind. The farmer stared
+after them as though hardly knowing what to make of it all; but they
+could hear the good woman begin to explain, and had no doubt she would
+be able to satisfy his reasonable curiosity.</p>
+
+<p>For the time being the Bird boys must forget all about what lay in the
+past, because it was the future that should interest them wholly. They
+had reached a point in the hunt where perhaps a sudden change of plans
+would be necessary; particularly if those they followed had taken the
+alarm, and were ready to shake the dust of this section of the country
+from their shoes.</p>
+
+<p>Away from the farmhouse hurried the two young aviators, making as near a
+bee line for the field where they had left their aeroplane as they could
+possibly manage, and all the while searching the sky for signs of the
+other flying machine.</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_XVIII"></a><h2>CHAPTER XVIII</h2>
+<br>
+
+<p>AN AEROPLANE CHASE</p>
+
+<p>&quot;Here it is, and everything seems all right!&quot; remarked Andy as they
+reached the field, and found the hydro-aeroplane just where they had
+left it.</p>
+
+<p>&quot;Yes, no one has disturbed a thing, which I think is lucky for us,&quot;
+Frank went on to say, as he proceeded to put back the small part he had
+taken away with him, and thus place the machine in perfect condition for
+business.</p>
+
+<p>Andy moved about, looking to see that all obstacles threatening to
+interfere with a successful launching were removed from in front of the
+waiting aeroplane.</p>
+
+<p>So minutes passed, until at least ten had crept by since their coming.
+Frank had everything tuned up, and knew of not the least chance where he
+could improve the conditions of planes or motor, for all seemed to be as
+nearly perfect as they could be made.</p>
+
+<p>Both boys cast frequent glances aloft, and as a rule toward that
+particular quarter where they presently expected to see something
+moving. They were keyed up to a pretty lively pitch of excitement,
+though Frank did not show it half as much as his younger cousin, who was
+always affected this way.</p>
+
+<p>Then suddenly Andy called out:</p>
+
+<p>&quot;There she rises, Frank! Oh! look at them boring up, will you, in that
+corkscrew spiral way! Tell me that Casper Blue doesn't know his
+business; Perc will never get as much out of his biplane as that old and
+experienced aviator means to. Are we going to follow suit, Frank?&quot;</p>
+
+<p>&quot;Get aboard!&quot; came the prompt answer; and it was almost laughable to see
+how nimbly Andy obeyed this order.</p>
+
+<p>Frank lost no time in starting, and they went away with a rush, passing
+over the abandoned field that was now given up pretty much to thistles
+and burdocks, with a sprinkling of iron-weeds.</p>
+
+<p>It was rather rough sledding, to be sure, and as the bicycle wheels
+pounded over the turf the boys had to hold on to keep their seats.</p>
+
+<p>But when sufficient momentum had been acquired, Frank elevated the fore
+plane, and immediately there was the greatest relief felt; for they
+began to rise in the air, and all that terrible bumping stopped for
+good. The change was wonderful, and it felt as though they were gliding
+on velvet.</p>
+
+<p>&quot;We're off!&quot; exclaimed Andy, exultantly.</p>
+
+<p>Frank said nothing. He did not possess quite the same sanguine nature
+that his cousin had. Andy seldom allowed thoughts of possible disaster
+to annoy him, but on the other hand Frank was always trying to head off
+trouble.</p>
+
+<p>He realized that with this launching of their new hydro-aeroplane they
+would be entering upon an extra hazardous game, the outcome of which no
+one could foresee. The two men whom they expected to follow must be
+desperate fellows, who would resort to almost any hazard rather than
+allow themselves to be caught.</p>
+
+<p>And it was not an amateur aviator like Percy Carberry who was opposed
+to them now, but one who had had long experience in the art of
+harnessing a flying machine to do his bidding.</p>
+
+<p>Once they left the ground behind them, Frank started to spiral upward
+much in the same way the others had done. One thing he was glad of, and
+this was the presence of Andy alongside. Casper Blue might be a daring
+air pilot, but with his companion a perfect greenhorn in all that
+pertained to the art, he would be more or less handicapped. A sudden
+incautious movement on the part of the novice might prove the undoing of
+the precious pair.</p>
+
+<p>Once they had risen to a certain height, and the aeroplane was turned so
+as to follow the other air craft, which was speeding away, headed
+directly into the north. Of course, those aboard must know that they
+were being chased. They could not have failed to see the hydroplane, (as
+it is generally called, though the true word to cover it would be
+hydro-aeroplane) even before it left the field, once they started to
+ascend.</p>
+
+<p>&quot;Well, we're off at last!&quot; commented Andy, in a satisfied tone, when the
+course had been taken, and they were following directly after the
+fugitive air craft.</p>
+
+<p>&quot;And let's hope we'll come out of this adventure as luckily as we have
+on other occasions,&quot; remarked sober Frank.</p>
+
+<p>&quot;Wonder if Perc happens to be looking this way right now,&quot; Andy went on
+to say. &quot;Chances are, that he's got his old field glass leveled, and is
+searching the heavens right along, in hopes of locating his lost
+machine. And say, if he does glimpse this fine parade right now, can't
+you see him turning green with envy to think of another glorious chance
+coming to the hated Bird boys. Oh! my, oh! me! but it would be gall and
+wormwood to Perc. Just as like as not he'd take a fit!&quot;</p>
+
+<p>But Frank was not giving any time to such thoughts as these. More
+serious affairs engaged his attention. When once he left the firm
+footing of the solid earth, and invaded the upper currents where up to
+lately man had never traveled, save in a drifting balloon, he always put
+levity aside, and paid strict attention to business.</p>
+
+<p>The panorama below them was constantly changing, and the boys could not
+but admire the pictures thus presented to their gaze. No matter how
+often one may go up a thousand feet or more above the earth, it is next
+to impossible to weary of the wonderful scenes that keep passing
+constantly in review as the buzzing motor keeps carrying the aeroplane
+along over plain, valley, hills, forests, rivers, and villages or towns
+that chance to lie in the route.</p>
+
+<p>To Andy it was all somewhat in the nature of a grand picnic, for his
+nature was not one to contemplate peril at a distance. Had he and Frank
+just come out for an hour's spin he could not have shown more delight,
+as they went whirling through space, with that rival flier a mile or two
+ahead.</p>
+
+<p>&quot;Do you think we're gaining on them?&quot; asked Andy, after some time had
+elapsed, and the country below began to get unfamiliar, proving that
+they had now come beyond the range of any previous trip taken to the
+northward of Bloomsbury.</p>
+
+<p>&quot;I don't know for sure,&quot; replied his cousin. &quot;Sometimes I think we are,
+and then again I'm a little in doubt. Suppose you get the glass out, and
+see what they're doing, Andy?&quot;</p>
+
+<p>&quot;Well, I'm a great one, forgetting all about that bully marine glass.&quot;
+As he said this Andy hastened to feel for the article in question, which
+was always kept handy, because there never could be any telling when
+they might want to use it in a hurry.</p>
+
+<p>&quot;Go slow; no use rocking the boat,&quot; sang out the pilot, who was forever
+cautioning his companion with regard to quick motions when seated in
+such a delicately balanced contraption as a biplane. &quot;It's a good thing
+that we've got that new fool-proof contrivance that Mr. Wright invented,
+on this machine right now, because only for that you'd be giving me more
+than a few scares when you swing from one side to the other so quickly.&quot;</p>
+
+<p>A minute later, and Andy, who had been looking through the glasses,
+spoke again.</p>
+
+<p>&quot;It's a little hard to cover them steadily, because they keep rising
+and dipping just like we are; but I can see that little Casper Blue, and
+the man alongside of him is a much larger chap.&quot;</p>
+
+<p>&quot;Of course it's Casper who's piloting the biplane?&quot; remarked Frank.</p>
+
+<p>&quot;Yes, and he knows the ropes, let me tell you. I don't believe there are
+many professional birdmen today who can go ahead of that man. I only
+wish you could take a squint through here, and watch how he manipulates
+the levers, in spite of that stiff arm of his. Only for that, and he'd
+still be in the harness, and doing stunts that'd have Beachy left far
+behind.&quot;</p>
+
+<p>&quot;Either that, or else he'd be buried,&quot; remarked Frank, drily.</p>
+
+<p>&quot;Oh! well, the less we have to say about that the better I'll feel,
+Frank. If you're going in for aviation at all you've just got to forget
+all about being in constant danger; though I hope I'll never get so I'll
+be reckless like Perc Carberry. But Frank, sure we seem to be picking up
+a little on that crowd. And from the way they keep looking back all the
+while, I guess they know it too.&quot;</p>
+
+<p>&quot;Perhaps we are,&quot; Frank went on to say, &quot;but if I really thought so I'd
+cut down a peg or two in our speed.&quot;</p>
+
+<p>At that Andy set up a howl; at least he voiced his objection.</p>
+
+<p>&quot;Well, that's a queer stunt for you to do, I must say, Frank. Here we
+are chasing after our game, and the very first time we believe we're
+gaining some, you inform me you mean to cut down our speed. Is that the
+way to win the game, tell me?&quot;</p>
+
+<p>&quot;But we don't want to come up with them while we're booming along like
+this, you understand,&quot; ventured Frank, as he gently moved a lever just a
+trifle; &quot;this sort of racing is a lot different from what you'd do on
+the ground down there. Suppose we did come abreast of that biplane right
+now, what good would that do us? Could we put out a hand and arrest the
+yeggmen? Wouldn't it be more likely that such desperate men as these
+must be, would try some sort of game looking to disable our craft, and
+sending us tumbling down to our death? No, excuse me from coming to
+close quarters up here with such hard cases. Honest now, Andy, if they
+began to circle around as if they meant to turn on us, I'd think it my
+duty to run!&quot;</p>
+
+<p>&quot;Oh!&quot; exclaimed Andy, &quot;you mean you'd coax 'em to follow us back to
+Bloomsbury, and then give themselves up, is that it, Frank? Oh! but
+you're a cunning chap, sure you are. But on the level now, what is our
+game, if it doesn't mean we're going to overtake 'em?&quot;</p>
+
+<p>&quot;I'll tell you, Andy. We ought to keep following after them as far as we
+can, and in that way learn where they drop. If we get a chance to send
+down an occasional message to be sent on to Bloomsbury so much the
+better. I've written several such out, and have the cord to tie them to
+weights. Given a chance, when we're passing over some town perhaps we
+can get one such message sent on home. Even that would tell them where
+we were, and what the chances are.&quot;</p>
+
+<p>&quot;Great game, Frank! Suppose you let me have those messages, and I'll be
+amusing myself getting the same ready to heave, when you say the word.
+We c'n play that this is a war game, and we've been sent out to drop
+bombs on the fortifications of the enemy. We've done it with rocks, and
+we can throw pretty straight; so it seems to me we ought to get some
+sort of fun out of it all around.&quot;</p>
+
+<p>Frank told him where he could find the written messages in his outer
+pocket; and for some time Andy was quiet, busying himself in fastening
+some sort of anchor to each piece of paper, sufficient to carry it
+earthward, despite the breeze that at the time might be blowing.</p>
+
+<p>All at once Andy noticed that they were going quite slowly in comparison
+with the pace they had lately been &quot;hitting up.&quot;</p>
+
+<p>&quot;What's happening, Frank?&quot; he exclaimed, almost alarmed lest some
+accident had befallen the reliable little motor, which up to now had
+never failed them, no matter how great the call upon its resources. &quot;Why
+are we slowing up? Is there something gone wrong, and must we own up to
+being beaten?&quot;</p>
+
+<p>&quot;Look ahead at the biplane!&quot; was all that Frank replied.</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_XIX"></a><h2>CHAPTER XIX</h2>
+<br>
+
+<p>DROPPING A &quot;BOMB!&quot;</p>
+
+<p>&quot;Oh! we've started to swoop down on them! Honest to goodness, I don't
+believe they're more 'n half as far ahead as they were, Frank!&quot; cried
+Andy, thrilled by the sight of the other biplane being so near.</p>
+
+<p>&quot;Just about that,&quot; said Frank, quietly, the busy motor having decreased
+its merry hum, so that they could talk without raising their voices very
+much.</p>
+
+<p>&quot;Then you must have let out an extra kink, did you, Frank, when I was
+busy with my bombs?&quot; demanded the other.</p>
+
+<p>&quot;Oh! no,&quot; came the answer, &quot;the fact of the matter is, Andy, they have
+dropped off a lot of their speed, and that's how we covered space
+quicker.&quot;</p>
+
+<p>&quot;Something gone wrong with Percy's new Gnome engine, then, has it; and
+he blew his horn so about what wonders it was going to do? Huh!&quot; and
+Andy chuckled in his boyish delight.</p>
+
+<p>&quot;No, I don't believe that is the reason they've slackened their speed,
+Andy.&quot;</p>
+
+<p>&quot;Trying to save gasolene, then?&quot; pursued the other.</p>
+
+<p>&quot;Hardly that, either, Andy.&quot;</p>
+
+<p>&quot;Oh! now I see what you mean, Frank; the poor old greenhorn's got cold
+feet, and is making Casper slow down. He thinks that there's less chance
+of a tumble if the speed is reduced; just as if that could make any
+particular difference.&quot;</p>
+
+<p>&quot;I reckon you're away off yet,&quot; persisted Frank.</p>
+
+<p>&quot;Then, for goodness' sake won't you tell me what they have cut notches
+out of their speed for; because I'm all balled up, and blessed if I can
+think of another thing! Oh! look at that, Frank! Sure as anything I saw
+a puff of smoke then. There must be something the matter with their
+engine, and they're getting scared. I wouldn't be surprised a mite to
+see them settle right away, and try to land.&quot;</p>
+
+<p>&quot;Well, you saw smoke all right, and if you'd listened sharp, you'd have
+heard a sassy little bark at the same time, Andy.&quot;</p>
+
+<p>&quot;A what, Frank?&quot;</p>
+
+<p>&quot;Call it a snarl, then. Take up your glasses, Andy, and look; while I
+drop out even a little more of our speed, so we'll fall back further.&quot;</p>
+
+<p>Hardly had Andy clapped the glasses to his eyes than he gave vent to an
+exclamation of mingled amazement and alarm.</p>
+
+<p>&quot;That greenhorn is looking this way, Frank, and as sure as goodness he's
+pointing at us right now. Oh! he did something then, for I saw another
+puff of smoke, and it came right from his hand. Why, he's shooting at
+us, Frank! That must be a gun he's got in his hand, and he's trying to
+hit us! If our motor didn't keep up such a constant whirl we might have
+heard the whine of that lead when it went singing past us!&quot;</p>
+
+<p>&quot;Yes, perhaps we might,&quot; Frank went on to say, composedly.</p>
+
+<p>&quot;But what can we do?&quot; demanded the other, nervously.</p>
+
+<p>&quot;Nothing more than decrease our own speed as often as they do, and play
+the game of tag backwards. If they get going it too strong, why, just as
+I said before, I'll turn tail, and head back toward Bloomsbury, daring
+them to follow, which you can be sure they won't, because our town is a
+mighty unhealthy place just now for Casper Blue and his pal. There! he
+fired again.&quot;</p>
+
+<p>&quot;That makes three times he's tried it, Frank!&quot;</p>
+
+<p>&quot;And I guess he can try the other three without doing us any damage,
+Andy.&quot;</p>
+
+<p>&quot;You believe that, do you?&quot; asked the one spoken to.</p>
+
+<p>&quot;Sure thing,&quot; Frank replied positively. &quot;Why, it would be one chance in
+ten thousand that he could strike any part of our aeroplane at that
+distance, going as both of us are, and with only a revolver. I'd be
+willing to let him blaze away all day, without being a bit afraid. But
+I'm bound that the two air crafts must keep at least this distance
+apart.&quot;</p>
+
+<p>The man in the other airship did fire three more times, but without any
+success whatever. And as though the rival navigator realized that
+Frank's tactics would effectually prevent his coming into closer contact
+with the pursuing craft, he no longer tried to close in, but increasing
+his speed, was quickly about the old distance away.</p>
+
+<p>Whereupon Frank Bird also hit up the pace cautiously.</p>
+
+<p>&quot;That's the ticket!&quot; cried out Andy, presently. &quot;I guess we're holding
+our own again now. For a little while I began to be afraid that they
+were going to just make us take their dust, and give us the merry ha-ha,
+vanishing in the distance. But now I know you've got the twist of the
+thing down fine, Frank, and can haul up on the biplane, or drop back,
+just as you feel like.&quot;</p>
+
+<p>For a long time they kept on, neither saying anything, for talking is
+always more or less of an effort when speeding along in an aeroplane,
+with the wind striking one in the face.</p>
+
+<p>Frank had had no time to fully adjust the muffler which he usually wore
+about his neck when about to soar to a dizzy height, so he would have to
+do the best he could; and besides, there was little chance of the other
+aeroplane venturing to bore upward to any unusual degree, all the
+efforts of the bank thieves being directed toward making their escape.</p>
+
+<p>He did have his goggles adjusted, however, which was a good thing, since
+his eyes must have watered very much from the cold air; and this is
+considered an ever present source of danger to one who manipulates the
+levers of a mile-a-minute aeroplane.</p>
+
+<p>&quot;We seem to have dropped a good deal lower, Frank,&quot; remarked Andy, after
+another space of time had elapsed.</p>
+
+<p>&quot;Yes,&quot; remarked the pilot, tersely.</p>
+
+<p>&quot;And I'm looking now for a good chance to make use of one of my bombs;
+don't you think it's about time to try the scheme out?&quot; Andy continued.</p>
+
+<p>&quot;Just as you feel like,&quot; replied Frank.</p>
+
+<p>&quot;Then at the very next town, or place that looks like it had telephone
+connection with the outside world, I'm going to have a try. Might have
+done it when we passed over that last place where the people were all
+waving things up at us, and we could just hear a confused shouting. I
+bet you, Frank, they just thought this was a regular air contest, with a
+prize offered to the winner.&quot;</p>
+
+<p>&quot;Well, it is,&quot; observed the other. &quot;If we win, we take back our
+prisoners; and on the other hand, if they come out first best they get
+away to Canada with their liberty and their plunder. Yes, it's a race,
+all right, Andy, a test of skill and endurance; and perhaps the best man
+will win.&quot;</p>
+
+<p>&quot;Then I know who that will be,&quot; declared Andy, enthusiastically.</p>
+
+<p>&quot;Don't be too sure,&quot; warned Frank, though it must have pleased him to
+know that he possessed the fullest confidence of his cousin and chum,
+who had been his constant companion on so many expeditions, and must
+understand him like a book.</p>
+
+<p>&quot;What if they keep everlastingly at it, and night comes on?&quot; asked
+Andy, presently.</p>
+
+<p>&quot;Well, there's the moon, though I don't like chasing along this way
+after sundown; and if we're put to it, we've got our fine search-light,
+you must remember,&quot; Frank replied.</p>
+
+<p>&quot;There, I believe we're going to pass right over another town, Frank!&quot;</p>
+
+<p>&quot;It does look that way, for a fact,&quot; admitted the other. &quot;Casper doesn't
+see any reason why he should bother changing his set course due north
+because he happens to pass a few towns away up here in the northern end
+of the State. Let the people stare all they want to. He's been used to
+having crowds gape at him, you know, and rather likes it. Besides, if he
+gets away, what does it matter?&quot;</p>
+
+<p>Andy prepared himself for the little job he had on hand.</p>
+
+<p>As he had practiced throwing stones from the aeroplane while at a great
+height, just to see how near he could come to hitting a certain place
+far below, so as to ascertain what chance aviators would have of making
+bombs tell in war times, the boy believed he would be able to drop his
+message pretty accurately in some open place, close to where the
+townspeople were clustered. And seeing it fall, some one would be sure
+to hurry over to secure the mysterious object.</p>
+
+<p>&quot;Here goes our old broken wrench, which has been hanging around so
+long!&quot; declared Andy, as, leaning carefully over, he measured distances
+with his eye, and suddenly let the object slip, taking care to make all
+allowances for their speed.</p>
+
+<p>This is more of a trick than most boys would suppose. The next time you
+are on a speeding electric car throw a stone at a telegraph pole just as
+you are passing it, and see how much beyond the missile will alight,
+because of the momentum it received because of the fact of its starting
+from the moving car.</p>
+
+<p>Andy had this pretty well figured out, and knew just when to launch his
+weighted message. He turned his head, and tried to follow it downward as
+well as he was able because of the fluttering white paper.</p>
+
+<p>&quot;It's going straight there, Frank, I do believe!&quot; he exclaimed, as he
+managed to get the powerful glasses up to his eyes, and fairly followed
+the progress of the message, though quickly losing it again. &quot;Yes, and
+the crowd there on the green must see it coming, because already a bunch
+of boys has started to jump that way. They'll find it easy enough,
+Frank. Now, what d'ye think of that for a successful bomb throw?&quot;</p>
+
+<p>&quot;Good enough for you, Andy,&quot; was the hearty response. &quot;And we'll have to
+take it as a sign that we're going to come out of this scrape as we
+generally do, with our colors flying.&quot;</p>
+
+<p>Frank usually allowed himself to feel the fullest belief in his own
+abilities; at the same time he always wished to avoid over-confidence.</p>
+
+<p>Again time passed on, and the hum of the busy motor was the only sound
+that came to the ears of the two young aviators. They were again making
+nearly full speed; though Andy felt pretty confident that, had it been
+necessary for Frank to coax an additional unit or two of &quot;hurry&quot; from
+the gallant little Kinkaid engine, it would respond to his efforts.</p>
+
+<p>&quot;My! but we must have covered a lot of distance since we started,&quot; was
+the next remark from Andy. &quot;How long do you suppose we've been going,
+Frank?&quot;</p>
+
+<p>&quot;Look and see. It was just five minutes after one when we left the field
+on the Hoskins farm, Andy.&quot;</p>
+
+<p>&quot;Two hours, Frank; now, what d'ye think of that? Why, I never would have
+believed it if you'd told me. Do you think my watch has jumped on
+ahead?</p>
+
+<p>&quot;No, because we've been hustling right along all of that time, I guess,
+Andy.&quot;</p>
+
+<p>&quot;Keeping everlastingly at it, and headed due north all the while,&quot; said
+Andy.</p>
+
+<p>&quot;As straight as a die; they never varied their course even a little bit,
+as far as I could see,&quot; the pilot declared.</p>
+
+<p>&quot;But we've covered an awful lot of apace, Frank!&quot;</p>
+
+<p>&quot;I guess you're right there,&quot; admitted the one addressed.</p>
+
+<p>&quot;And, Frank, if we keep on this way, and nothing happens, we ought to
+sight the big lake away; ahead there inside of 'half an hour more, I
+should think?&quot; Andy ventured to say, and he was thrilled when his
+companion, turning toward him just at that moment, went on to say:</p>
+
+<p>&quot;Perhaps in less time than that, Andy; with the glasses you might
+glimpse it even now!&quot;</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_XX"></a><h2>CHAPTER XX</h2>
+<br>
+
+<p>OVER LAND AND SEA</p>
+
+<p>&quot;Are you joshing me, Frank?&quot; demanded the other Bird boy, as he swung
+eagerly around, so as to fix his glasses upon the far off horizon ahead
+of them.</p>
+
+<p>&quot;I certainly am not, Andy; but please be more careful how you move. You
+gave me a punch in the ribs just then that sent a cold shiver all over
+me. Don't forget that we're not stretched out on the ground under an
+apple tree taking an afternoon doze. Well, what do you see?&quot;</p>
+
+<p>&quot;Frank, I do believe you're right about that lake business!&quot; exclaimed
+Andy.</p>
+
+<p>&quot;Then you can see it?&quot; asked the other, himself more than anxious,
+because of the fact that the fleeing bank robbers who had stolen the
+biplane of Percy Carberry apparently intended to escape over the line
+into Canada, even if to accomplish their purpose they had to daringly
+cross Lake Ontario, many miles wide, a feat as yet only successfully
+done by one or two bold fliers of national repute.</p>
+
+<p>&quot;I sure can; and the way we're heading it's a dead open-and-shut thing
+that we're just going to swing out over the water before another hour
+passes. Whew!&quot;</p>
+
+<p>Andy finished his sentence with this significant exclamation. It was as
+though not only the novelty of the thing but its thrilling nature
+staggered him. The Bird boys had flown under many strange conditions,
+but as yet they had not made a water flight.</p>
+
+<p>There is and always must be a vast difference between passing over the
+land, with its forests, hills, valleys, plains, cities and villages, to
+starting out over a wide stretch of inland sea, with only the tumbling
+waves far below, and new as well as untried currents of air to meet and
+conquer.</p>
+
+<p>More than a few times Andy Bird had expressed a wish to have just such
+an experience. It would be a novelty, something entirely new in their
+line, and which would give them possibly delightful thrills.</p>
+
+<p>But now that the chance seemed opening up before them, he found himself
+viewing it with considerable apprehension, as well as delight.</p>
+
+<p>Of course it made considerable difference that they should be chasing
+after a desperate pair of rascals, rather than simply trying to
+accomplish a flight from United States territory to that belonging to
+Canada. There was always the chance that these men might turn upon them,
+and succeed in doing something to injure the hydroplane, causing it to
+drop into the midst of that inland sea.</p>
+
+<p>Strange how small things often insist upon thrusting themselves forward
+when some sort of peril threatens. The very first thing Andy seemed to
+think about was the fact that they did not happen to have any life
+preservers aboard the craft. Not that there was one chance in a thousand
+they would ever need such things around Bloomsbury, though there was
+Lake Sunrise to be reckoned with; but just then it struck the boy that
+every well equipped aeroplane ought always to carry a couple of rubber
+rings along, which, in moments of dire necessity could be blown full of
+air, and would serve to sustain wrecked aviators until help came.</p>
+
+<p>He even decided to mention this fact to his cousin, after this voyage
+was concluded. It loomed up as large as the Rock of Gibralter just then,
+even as a dream may at the moment of awaking, but which later on begins
+to lose its realistic effect until it seems next door to silly.</p>
+
+<p>&quot;They don't show the least sign of changing their course, do they,
+Frank?&quot; Andy remarked after another spell of time had passed.</p>
+
+<p>&quot;Not that you could notice,&quot; replied the other, composedly.</p>
+
+<p>Andy derived more or less comfort from this way his chum had of keeping
+his head even under the most trying conditions. When his own nerves were
+fairly quivering with excitement, it always steadied Andy to turn and
+see that Frank was as cool and calm as though nothing were amiss. More
+than a few times in the past it had caused the more hot-headed Bird boy
+to conquer his own weakness, and do himself credit in some difficult
+feat that became necessary. Example is a splendid thing to lead any boy
+along safe roads. Words may be forgotten in the trying moment; but when
+he actually sees the thing done before his very eyes, it is indelibly
+impressed upon his mind.</p>
+
+<p>&quot;About how long will it be before we get there?&quot; Andy asked again; for
+he was forever wanting to know, when he had any misgivings about his own
+capacity for reaching a reasonable conclusion.</p>
+
+<p>&quot;Do you mean before we leave the land, and commence our voyage across
+the lake?&quot; Frank inquired.</p>
+
+<p>&quot;Yes, that's it&mdash;more than half an hour, at the speed we're going now?&quot;
+continued the other.</p>
+
+<p>&quot;Just about, I should say,&quot; Frank replied, after carefully measuring
+distances with his eye. &quot;We are up pretty high, and can cover a
+tremendous range, you know, so we first glimpsed the lake when we were a
+long ways off. It may be all of forty miles away right now; and as we
+must be clipping along at the rate of eighty, with the breeze favorable
+behind us, why, half an hour ought to see us there.&quot;</p>
+
+<p>Andy fell silent again.</p>
+
+<p>Many times did his eyes travel from the distant water to the earth below
+them; and then follow this up with an uneasy stare at the other
+aeroplane that was flying along far ahead of them. The whole solution of
+the problem of course lay in the hands of the man who controlled the
+destinies of that stolen biplane. Would he really have the nerve to
+attempt a flight across that great body of fresh water, aiming to land
+on foreign shores, from which he could not easily be extradited?</p>
+
+<p>Frank seemed to think that such was undoubtedly the intention of Casper
+Blue, the little man who had been actor, aviator, and yeggman in turn,
+during the course of his adventurous life.</p>
+
+<p>He had already proven beyond any doubt that he was a capable airman,
+even though he did have a crippled arm. Never had the Bird boys seen an
+aeroplane handled with more extraordinary skill and dash than was the
+one that had been stolen from the hangar of Percy Carberry.</p>
+
+<p>No, unless something unexpected happened to disturb the plans of the
+fugitive yeggmen inside the next half hour, they plainly meant to launch
+out on a voyage across the lake, possibly thousands of feet above its
+surface, and perhaps among the very clouds.</p>
+
+<p>Not once did Andy dream of asking his cousin whether in this event he
+considered it the part of wisdom for them to follow the men who were
+doubly risking their lives in this mad effort to escape with their
+booty.</p>
+
+<p>He knew Frank only too well to doubt his willingness to undertake such a
+trip as this. In times gone by, and especially when they were down in
+South America with their aeroplane, seeking Professor Bird, who had been
+lost, with the balloon in which he was conducting experiments on the
+isthmus, they had bravely faced just as serious perils as this promised
+to be; yes, and wrenched victory from the jaws of apparent defeat more
+than once.</p>
+
+<p>Hence, it was a foregone conclusion that if Casper Blue attempted the
+difficult feat of flying across the lake, after being in the air several
+long hours, the two Bird boys were determined to keep following after
+him. It seemed like a game of &quot;conquer,&quot; which Andy remembered so well;
+where the rival aviator dared to go they must follow, or acknowledge his
+superiority as a bold airman, something neither of them felt like doing.</p>
+
+<p>Frank had figured it all out while he was speeding along so smoothly.</p>
+
+<p>So far as he could see everything was working as easily as could be; the
+motor never missed, and was running like a charm, just as though it
+could keep this up everlastingly in an endurance test. And besides, the
+wind, what there was of it at present, seemed to favor them most
+positively, because it was at their backs.</p>
+
+<p>So far as appearances went the conditions were ideal for the crossing of
+the great lake that was now showing up ahead most grandly.</p>
+
+<p>Andy drew in big breaths, and tried to keep from quivering with delight,
+mingled with just a little nervousness. Here was a new experience about
+to come to them; and one that they were not apt to soon forget. As a boy
+Andy delighted in novel sensations; and as an ambitious aviator he
+yearned to experience all the glorious possibilities that open up to the
+one who has the pluck and the nerve to attempt them.</p>
+
+<p>They could see a town in plain sight, though they had gradually ascended
+since Andy cast his bomb so successfully. Perhaps his little game of
+opening communications with the earth below had been observed by one of
+those in the leading airship; and in order to prevent another attempt,
+this gradual ascent had been immediately carried out.</p>
+
+<p>But Frank fully expected to see the rival aeroplane begin to drop as
+they drew near the border of the fresh water sea. Since just then there
+was no squally wind near the surface of the water, which they wished to
+avoid by remaining thousands of feet high, the chances were that Casper
+Blue would soon commence to use his deflecting rudder, and begin to
+descend in wide spirals; or else, with the daring of an old and skilled
+air navigator, shut off power, and volplane down in a slant that would
+thrill any spectator as nothing else could, until the required distance
+had been covered, when he would again bring the shooting aeroplane on a
+level basis, and resume his forward progress.</p>
+
+<p>Whatever he did Frank was ready to imitate.</p>
+
+<p>He had the fullest confidence in his own ability to accomplish the most
+difficult feat that would be required.</p>
+
+<p>&quot;Steady yourself, now, Andy,&quot; he cautioned; &quot;because they're going to
+change the going pretty soon, I take it. Better put that glass away, and
+be ready to give me a lift if I need it. Watch and see if they don't
+drop down closer to the water. It would be a wise thing to do, I take
+it; for in case of accident the spill wouldn't be so bad.&quot;</p>
+
+<p>&quot;All right, Frank, just as you say,&quot; replied the other, accustomed to
+looking to his cousin for the words of command when an emergency or a
+crisis came along.</p>
+
+<p>He fastened the precious glasses in their rigid case, where they would
+be safe so long as the aeroplane remained above the surface of the
+water, or did not fall to the ground in a serious wreck.</p>
+
+<p>Then Andy paid attention to a number of small but very important matters
+that had always been given over into his charge at times like this. The
+Bird boys had been comrades so long that they worked together like a
+well oiled machine. The ball team that has played in company for a
+season can accomplish feats that would be utterly impossible to a nine
+that had been brought from various clubs, even though each player might
+have been a star in his respective team.</p>
+
+<p>So it was with Frank and Andy; they had grown to know each other's
+points so well that when the moment came it often seemed as though they
+instinctively formed a single unit, with that exceedingly bright brain
+possessed by Frank doing all the piloting of the combination.</p>
+
+<p>They were all ready for the business in hand long before the border of
+the big water was reached. Frank had looked around him several times,
+and his cousin seemed to know instinctively that he was endeavoring to
+decide as to whether the wind was apt to hold as it chanced to be at the
+time; or increase in velocity, should they drop to lower levels.</p>
+
+<p>It was rather awe inspiring to see that vast gulf of glistening water
+stretching as far as the eye could reach in three directions, north,
+east and west. From the high altitude which they still occupied, they
+could not tell whether the lake was calm, or waves rolling along its
+surface. The westering sun glittered from its bosom as though it might
+be streaked with gold, and altogether it was a sight that neither of the
+boys would soon forget.</p>
+
+<p>To Andy in particular it appealed with vigor. His nature was more
+inclined to worship at the shrine of the romantic than would be the case
+with the practical Frank. To Andy that vast sheet of water seemed
+mysterious, profound, filled with secrets of argosies that were launched
+on its breast centuries ago, when only the bark canoes of the red men
+had ever been wedded to its waters. In imagination the boy could even
+then see the barques of the early explorers, those bold men who had
+pushed thither from across the ocean, and risked their lives in order to
+learn what the New Country held for brave hearts.</p>
+
+<p>Perhaps, had he still gripped the glass in his hands, and cared to look
+earthward before leaving the shore for that adventurous cruise, Andy
+might have seen many a group of wondering people all watching the flight
+of those hurrying ships of the upper air currents, and even waving hats
+and handkerchiefs in the endeavor to attract the attention of the bold
+navigators, whom they supposed to be engaged in a race for a wager.</p>
+
+<p>But there was now no longer time for anything like this, and all their
+attention must be concentrated upon the one thing that meant so much to
+them&mdash;the safety of the delicate craft in which they were now about to
+entrust their very lives for a voyage, the like of which few airmen had
+ever entered before.</p>
+
+<p>Already had the other aeroplane sailed away, and was even now hanging
+over the inland sea, that lay fully four thousand feet below, its
+further shore hidden in what seemed to be a cloud, though it might prove
+to be a rising fog, fated to engulf both pursuing and pursued air craft
+in its baffling folds, and turn the comedy of the race into a tragedy.</p>
+
+<p>&quot;Goodbye old land!&quot; sang out Andy, when they seemed to suddenly pass out
+over the water, leaving the shore of New York behind.</p>
+
+<p>Frank said not a word, but no doubt his feelings were just as strong as
+those of his companion. And so they had now embarked on what seemed to
+be the last leg of the strange chase, with the future lying before them
+as mystifying as that fog bank lying far away to the north.</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_XXI"></a><h2>CHAPTER XXI</h2>
+<br>
+
+<p>OVER THE BOUNDARY LINE</p>
+
+<p>It was with the queerest possible feeling that Andy saw the land
+slipping away, and realized that they were at last launched upon the
+water part of the voyage.</p>
+
+<p>It seemed as though they had cast loose from their safe moorings, and
+were adrift upon an uncharted sea. When comparing his feelings with
+other aviators in later times, he learned that every one of them had
+experienced exactly similar sensations the first time they passed out of
+touch of land, and found the heaving sea alone beneath them. It was a
+sort of air intoxication; Andy even called it sea-sickness, though
+doubtless most of it came from imagination alone.</p>
+
+<p>&quot;There they go, Frank!&quot; he called out, not ten minutes later.</p>
+
+<p>The land was far behind them now, and still in the other three
+directions they saw only the level surface of the great lake.</p>
+
+<p>His exclamation was called out by a sudden change in the method of
+advance adopted by those in the leading aeroplane. Instead of keeping
+along in a direct line the biplane had uptilted and was now shooting
+downward in what seemed a terribly perilous way; just as though the pair
+of precious scoundrels had taken a notion to end the pursuit by seeking
+a plunge into the water.</p>
+
+<p>But both boys knew differently, and that this was only a volplane,
+adopted by experienced and rash aviators as a means of reaching the
+lower air currents more rapidly than by slow spirals; or else undertaken
+when having engine trouble that threatens destruction.</p>
+
+<p>Frank was ready to follow suit. It would not be the first time by long
+odds that the Bird boys had accomplished this speedy method of
+descending from high altitudes. There was always an exhilaration about
+the clever trick that appealed irresistibly to their natures; though
+Frank would never have attempted it unless reasonably sure that the
+conditions were favorable for success.</p>
+
+<p>&quot;Hold fast, Andy!&quot; he remarked, quietly.</p>
+
+<p>The hum of the motor suddenly ceased, and with its cessation the
+hydroplane was turned head-on toward the surface of the lake, four
+thousand feet below.</p>
+
+<p>Down they went, plunging toward what seemed to be instant destruction;
+but a steady hand was at the wheel, and the pilot knew just what was
+necessary to do at the proper instant in order to bring this rapid
+descent to a stop, and right the airship on a level keel.</p>
+
+<p>But there was no time just then to note what the rival aeroplane might
+be doing. Whether the experienced airman in charge managed to stop that
+downward plunge before reaching the surface of the lake; or failing went
+to his death, was a matter that did not concern them now, since they had
+their own affairs to look after.</p>
+
+<p>To tell the truth, Andy's heart seemed to be in his throat as they made
+the drop. As yet they had never tried out the new hydroplane in a trick
+of this sort; and hence really did not know just how it might act;
+though Frank must have been pretty confident, else he would never have
+attempted it.</p>
+
+<p>Given the choice the Bird boys would easily have decided to descend from
+their lofty height by means of the much safer if slower &quot;spirals,&quot; each
+circle seeing the aeroplane lower than before. But since the reckless
+man in the other air craft led the way, Frank had chosen to follow. He
+believed that he could accomplish any feat that was possible to Casper
+Blue, especially now that the old air navigator had a handicap in the
+way of a crippled arm.</p>
+
+<p>The water seemed rushing up to meet them; so it looked to Andy, whose
+anxious gaze was fastened upon the lower depths, as they dipped down in
+that terrific swoop. But then, he had seen the same thing when over the
+land, so that in itself this did not daunt him.</p>
+
+<p>&quot;Oh!&quot;</p>
+
+<p>That exclamation seemed to be forced from Andy's lips when he felt Frank
+give a quick turn to the lever that caused the deflecting rudder to
+again resume a normal position. The drop of the aeroplane was brought to
+a gradual stop, and when immediately afterwards the buzz of the motor
+announced that the propelling power was again at work, it was no wonder
+that the nervous boy expressed his relief by giving vent to that cry.
+There was a world of gratitude back of that word, it can be set down as
+certain; for no matter how confident Andy might have been concerning his
+cousin's ability to accomplish wonders, the new hydroplane was as yet
+untried in many things.</p>
+
+<p>Now he even dared take his awed gaze from the heaving waters beneath the
+framework of the aeroplane, and give a thought to those whom they had
+chased overland and water for nearly three hours.</p>
+
+<p>&quot;Bully for Casper Blue! He made the riffle too! he's all to the good!&quot;
+was the way the impulsive Andy announced his discovery to Frank, who
+just then could not spare even a second to take his attention off the
+working of the motor.</p>
+
+<p>After all, it was not so very strange that the boy should express
+himself in this way. True, the man he was praising was now a criminal,
+and they sought to effect his arrest in some manner as yet vague and
+uncertain; but it was not in this light Andy viewed him just then. As a
+birdsman Casper Blue had proved that he still possessed the nerve and
+skill to direct a daring flight, and that all the tricks known to
+celebrated fliers were at his finger's ends.</p>
+
+<p>Any one who has risked his life up among the clouds must always respect
+such a valiant spirit, even though aware that the object of his
+admiration has in other ways forfeited the esteem of all honorable men.</p>
+
+<p>There was the biplane moving along on a level keel, and not more than
+two hundred feet above the water. And still the course held due north,
+showing that the desperate men who were thus fleeing from arrest had
+not the slightest intention of changing their plans.</p>
+
+<p>&quot;What do you think of her now, Andy?&quot; asked the pilot, with a quiver of
+pride in his voice.</p>
+
+<p>&quot;You must mean our new craft, I take it, Frank; and I want to say that
+she's a real peach, if ever there was one. We never volplaned as easy as
+that in our lives, and that's a fact. Why, it was like sliding downhill
+on a sled, with never a single bump on the way. I could do that all day,
+and never get enough.&quot;</p>
+
+<p>&quot;Dangerous business, all the same,&quot; remarked Frank; &quot;and doubly so when
+you don't happen to be well acquainted with your machine. A single
+hitch, and we would have struck the water at a terrible rate.&quot;</p>
+
+<p>&quot;But all the same we didn't, Frank,&quot; the other went on, jubilantly; for
+now that this peril was of the past Andy could be his old self again.</p>
+
+<p>&quot;And they did just as well,&quot; remarked Frank, always ready to give
+credit, even though it might be to a rival, for his nature was generous
+to a fault.</p>
+
+<p>&quot;Well, that biplane was easier to manage than our hydroplane, with the
+pontoons underneath,&quot; Andy went on to say, grudgingly; for no one could
+ever convince him that Frank had his superior as an air pilot; and he
+would sooner go up to a record height of fifteen thousand feet in
+company with his cousin, than accompany the most famous man living.</p>
+
+<p>&quot;It looks like we might be booked for Canada, Frank,&quot; he went on to say,
+a minute later, after they had fallen into the new &quot;stride&quot; comfortably,
+and were rushing forward on a level stretch, with the surface of the
+lake close at hand.</p>
+
+<p>&quot;I shouldn't wonder,&quot; came the noncommital reply.</p>
+
+<p>Now, Andy knew his cousin like a book. Perhaps it was something in the
+words; or on the other hand there may have been an undercurrent of doubt
+in the way Frank spoke, that aroused the other's suspicion.</p>
+
+<p>&quot;What is it, Frank?&quot; he demanded, &quot;for I reckon you see something that
+is all a blank to me? Take me in, won't you?&quot;</p>
+
+<p>&quot;Oh! I was wondering what would happen if they had an accident away out
+on the lake, that's all,&quot; admitted the other.</p>
+
+<p>&quot;Well, in that event I guess it'd be up to the Bird boys to play the
+rescuer act for all it was worth. But Frank, do you think this new
+machine of ours could climb up off the water with four aboard? Wouldn't
+that be the limit?&quot;</p>
+
+<p>&quot;To tell you the truth, Andy, I don't know, because we've never had the
+chance to try it out. With only two of us aboard you know how easy she
+climbed; three passengers she could hoist, but four might faze her. We
+can only wait and see, if ever the chance comes to make the test.&quot;</p>
+
+<p>&quot;But you wouldn't hesitate about trying the same, I know, Frank?&quot;</p>
+
+<p>&quot;Of course not,&quot; the other remarked, confidently, &quot;and especially when
+it might mean life or death to a poor fellow away out here on the lake
+miles from land. If we couldn't rise, we might still be able to float
+like a duck, and hope that some boat would come to the rescue. In the
+end that would be just the same.&quot;</p>
+
+<p>&quot;Do you know,&quot; said Andy, &quot;I saw a tug pulling out at full speed from
+the little city on the shore of the lake, close to where we left land;
+and somehow I seem to have an idea they know all about us, and mean to
+keep in touch with us as long as they can, to be handy in case of
+accident. Perhaps, now, my message was phoned to Bloomsbury; and seeing
+about where we must be heading if we kept on a northerly course, they
+have wired up here to watch out for us. How about that, Frank; am I
+silly to figure that way?&quot;</p>
+
+<p>&quot;I don't see why you should be, Andy. In fact, just as soon as you
+mentioned about the tug I began wondering if somehow these good people
+didn't know who we were, and what we were chasing after the biplane
+for.&quot;</p>
+
+<p>They had to speak unusually loud in order to hear, even though their
+heads were close together at the time; for the propellers were whirling
+with a hiss, and the hum of the motor added to the noise. But then, it
+was all a merry racket that chimed in well with the spirit of the young
+aviators; and which gave them much the same pleasure that the splash
+through the foaming water of a ninety-foot racing yacht must awaken in
+the heart of an enthusiastic skipper, when he knows that every sail is
+drawing to the limit, and all things are working well.</p>
+
+<p>&quot;Have you figured out what we ought to do if by good luck we all get
+over to the other side, safe and sound?&quot; went on Andy.</p>
+
+<p>&quot;We'll have to leave that,&quot; was the reply Frank made. &quot;No use crossing a
+bridge till you come to it, you know, Andy.&quot;</p>
+
+<p>&quot;But they'll be safe then, Frank?&quot; &quot;I'm afraid so, even if I don't
+pretend to be up in all the international law connected with the
+passing of a thief from United States territory to Canada.&quot;</p>
+
+<p>&quot;But ain't that a measly shame?&quot; ejaculated the indignant Andy, &quot;to
+think of a robber being able to turn, and put his fingers to his nose
+and wiggle 'em at us, just because he happens to cross the boundary
+line. It oughtn't to be that way, Frank!&quot;</p>
+
+<p>&quot;Of course not; and I guess lots of abler chaps than you and me have
+thought the same; but there it stands, and the two countries won't get
+together to change the law even a little bit. Every year dozens of
+embezzlers light out across the border for Canada, where they can spend
+their money, and start for Europe if they feel like it.&quot;</p>
+
+<p>&quot;Then perhaps it's the money they take with 'em that the Canadians like;
+though I wouldn't like to believe such a thing,&quot; ventured Andy.</p>
+
+<p>&quot;Hardly that; but both countries are jealous about bringing back
+political offenders, I've heard Judge Lawson say more than once. But
+don't let's talk any more'n we can help, Andy. We've got our hands full
+as it is watching those fellows, and keeping ready to match any trick
+they try.&quot;</p>
+
+<p>This served to give Andy a new cause for concentrating his attention on
+the fleeing biplane once more. As yet the pilot of the leading airship
+had not diverted from his set course; but if he was as tricky as they
+had reason to believe, there was always a chance that he might engineer
+some scheme, sooner or later, looking to shaking off his pursuers here
+in the middle of the great lake, where possibly no mortal eye could
+witness the deed, so as to appear against him later on.</p>
+
+<p>With the wind aft, of course the further they advanced the larger grew
+the waves; and Andy noticed that they were now of quite respectable
+size; though being directly above, he could not tell much about it, only
+that in many spots he saw the white caps breaking, and this served as a
+pointer.</p>
+
+<p>Would the hydroplane be able to ride such a sea in safety, in case
+necessity compelled them to alight upon its swelling bosom?</p>
+
+<p>Frank did not seem to doubt it, for he had the utmost confidence in the
+ability of those aluminum pontoons to sustain a great weight without
+sinking. What they would possibly have to fear more than anything else,
+was the chance of a capsize; and of course this would spell disaster as
+much as anything else.</p>
+
+<p>Once they overtook a sailing schooner that was speeding along with a
+fair breeze. Possibly those aboard thought they were making most
+excellent time, with everything in their favor, but the aeroplanes sped
+past the vessel almost as though it were a toy craft.</p>
+
+<p>A faint cheer was heard from those aboard who could be seen wildly
+waving head-gear, or red handkerchiefs; just as though what they
+considered a novel air race had been engineered especially for their
+amusement.</p>
+
+<p>When Andy took occasion to look backward again in a short time he was
+amazed to discover how far distant the sails of the schooner seemed. And
+it was this incident more than anything else that gave him to understand
+just what amazing speed the aeroplanes were putting in their mad race
+across the inland sea.</p>
+
+<p>But while up to now the voyage had been without incident worthy of
+mention, or accident of any kind, it could hardly be expected that this
+immunity would continue to the very end. The splendid good fortune that
+had hovered over both airships was apt to be brought to a sudden
+termination at any moment, as Frank well knew.</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_XXII"></a><h2>CHAPTER XXII</h2>
+<br>
+
+<p>A HYDROPLANE RESCUE</p>
+
+<p>All this while Andy's nerves had been strained to a high pitch. And it
+was not at all singular, therefore, that when the anticipated event came
+to pass he gave vent to a loud cry.</p>
+
+<p>&quot;Looky! Frank; they're going to drop! Something must have happened to
+the motor or else a plane guy broke to cripple them!&quot; was what he almost
+shrieked.</p>
+
+<p>Frank was watching, though he had not uttered a single sound. He knew
+that the half expected crisis was now upon them. At least his heart
+found cause for rejoicing that if an accident had to happen, it affected
+the other aeroplane rather than their own. It is much easier to bear
+watching another's troubles than to bear your own.</p>
+
+<p>What Andy had said was the truth, for the craft they were chasing after
+had taken a sudden dip, and was fluttering downward.</p>
+
+<p>If you have ever seen a crippled bird trying hard to keep afloat, you
+can have a pretty good conception of how that biplane dropped lower and
+lower toward the water.</p>
+
+<p>That it did not fall like a lump of lead spoke volumes for the
+magnificent management of the pilot who controlled the levers, and whose
+long experience had taught him just what to do in such a dreadful
+emergency as this.</p>
+
+<p>Frank had instantly cut off much of their power, though they still
+continued to sweep onward toward the place of the catastrophe, and were
+rapidly drawing near the falling aeroplane.</p>
+
+<p>Both boys stared at the terrible picture of the descending biplane
+nearing the heaving surface of the lake. It seemed very serious indeed,
+for any one to drop in this way; and yet how much more dangerous to fall
+upon land, where the wrecked aviators would stand a good chance of
+broken limbs, even though they saved their necks.</p>
+
+<p>Then a cry from the impulsive Andy told that the biplane was in the
+water. If the engine had broken loose there was a pretty fair chance
+that the craft with its long extended planes would float, and even bear
+up the two aviators. Perhaps the quick-witted Casper Blue had looked out
+for just such a contingency, and found a way to free the framework from
+the dead weight of the motor.</p>
+
+<p>Frank had all he could do to manipulate his own craft, for in order to
+alight successfully, even as a wild duck does, he must make a turn, and
+head up into the wind.</p>
+
+<p>That meant the passage of a certain length of time; and meanwhile who
+could say what might not be happening to the imperiled men?</p>
+
+<p>On the other hand, Andy could not tear his horrified gaze away from the
+wreck of the fallen biplane; and it was really upon him that the
+navigator must depend for his information as to how things were going.</p>
+
+<p>Fortunately Andy could talk as well as look; no matter if his tongue did
+show a decided inclination to cleave to the roof of his mouth with
+horror, he managed to find a way to make it wag.</p>
+
+<p>&quot;It floats, Frank, sure it floats!&quot; he ejaculated, presently, even as
+the other was in the act of making a sweeping curve, and skilfully
+ducking a squally puff of wind, turn back over the course they had just
+covered, to sink down upon the heaving waters when he found the chance.
+&quot;Yes, they must have kicked the engine overboard. That makes three poor
+old Perc has lost, don't it? There they are, both of 'em, squattin' in
+the middle of the wreck, just as cool as you please, awaitin' for us to
+call in and take 'em off. Hope it don't sink before we c'n get back. If
+either one can't swim they'd go down like a stone. Now you're around,
+Frank; and we're heading straight for the place. Hurrah! Hold hard there
+and we'll lend you a helpin' hand!&quot;</p>
+
+<p>He even waved toward the two men by now pretty well submerged in the
+water, but who seemed to be still clinging to the floating aeroplane, as
+though recognizing that their position might be much more desperate
+should they cut loose from that buoy.</p>
+
+<p>Frank was watching closely, to pick out a favorable opportunity to
+alight. Well did he know the chances he and his chum were taking in thus
+dropping upon the heaving surface of such a tremendous body of water as
+Lake Ontario. It was true that they had successfully performed this
+operation many times with their other hydroplane, but that was upon the
+much calmer waters of little Sunrise Lake, where the sea never arose
+heavy enough to imperil the floating aircraft. It would be much more
+perilous now, under these conditions; but Frank had made up his mind to
+attempt the rescue of those in the water, and was not to be easily
+daunted.</p>
+
+<p>When the right opening came he allowed the hydroplane to dip gently
+down, making sure that there was as little violence as possible in the
+drop, because of the chance of burying the forward propeller under; or
+losing his balance, upon which so much depended.</p>
+
+<p>Andy knew what he was expected to do, and was nimbly endeavoring to
+swing his weight this way or that after they had launched on the waves,
+so as to keep the pontoons on an even keel, and prevent a disastrous
+spill. For once this occurred, the hydroplane would be of little more
+advantage than the wrecked biplane, which barely upheld the two clinging
+men, and was evidently sinking lower under the strain, with each passing
+second, until the end must be in sight.</p>
+
+<p>At least they had dropped safely. The pontoons had been cleverly
+adjusted so as to bear a just proportion of the weight, and they did
+their duty faithfully and well in this great crisis.</p>
+
+<p>Of course, the next thing was to try and work closer to the sinking
+biplane, and take the men aboard, one at a time. That would be a risky
+proceeding, requiring all the skill that Frank could bring to the front.</p>
+
+<p>In the first place he had chosen to drop beyond the wreck of Percy's
+biplane. This he had purposely done, in the hope that the wind might
+drift them down upon the other aircraft.</p>
+
+<p>A minute's observation convinced Frank, however, that if they waited for
+this to happen, the frail support which was buoying Casper Blue and his
+mate up would have gone under long long before they could get within
+touch.</p>
+
+<p>Already the second man was shrieking for them to hurry, because he could
+feel himself slowly but surely sinking; and he let them know that he
+could not swim a stroke.</p>
+
+<p>Plainly, then, they must do something to quicken things, if they meant
+to be of any service to the two rogues, thus brought to a sudden halt
+just when escape had seemed most bright.</p>
+
+<p>Frank remembered his engine. But would it work under such strange
+conditions as this? He quickly saw that the rear propeller was half
+buried in the water; and if it turned at all would have to churn things
+just as though they were in truth a queerly fashioned boat, instead of
+an airship, intended to mount to lofty heights, and vie with the eagle
+in his circling above the clouds.</p>
+
+<p>Quickly, then, he started to make the trial; and Andy, seeing his
+movement, comprehended what he must have in mind; for he swung out in
+such fashion as to preserve a balance, and thus help things along as far
+as lay in his power.</p>
+
+<p>What a sensation of relief that hum of the faithful little Kincaid
+engine brought in its train, as it once more took up the burden of its
+busy song. Why, it seemed to Andy as though he could almost shout in
+sudden relief, when he heard it first, and saw the water flying from the
+partly submerged propeller.</p>
+
+<p>But Frank was wise enough not to turn on full speed, knowing what a
+terrific strain this condition of affairs must be upon the entire
+fabric, flimsy at best; and if anything gave way it was all over with
+them; for if a chain is only as strong as its weakest link, a
+heavier-than-air flying machine certainly comes under the same category.</p>
+
+<p>&quot;We're going it, Frank!&quot; shouted Andy, when he saw that their speed had
+increased several hundred per cent, and that they were now heading
+straight for the partly submerged air navigators.</p>
+
+<p>It never occurred to Andy that either of the men might offer the
+slightest objection to being rescued. Frank looked a little further
+ahead; but even he could hardly believe that Casper Blue would prefer
+to drown rather than be saved.</p>
+
+<p>What Frank was really concerning himself about more than anything else
+was how he could stow away the two fellows, once they found a chance to
+climb aboard the hydroplane; and whether he could get enough impetus
+from the engine with such an unusual load, to rise from the water, once
+he elevated his planes.</p>
+
+<p>&quot;Hurry! oh! Hurry! I'm going down!&quot; cried the larger man.</p>
+
+<p>Casper never said a word. Possibly, being a swimmer, he did not feel the
+same degree of terror that his companion experienced. Then again, he may
+have been coolly figuring on how he might turn the rescue to his own
+advantage in some way; for he seemed to have that little black box slung
+over his back by means of the strap; and it was easy to understand that
+it must, as Andy had guessed, contain something of considerable more
+value than a mere camera.</p>
+
+<p>Now they were closing in. The hydroplane round-up was being carried out
+in what seemed to be a successful manner; and if all went well during
+the next few minutes the drifting fugitives would be hauled aboard by
+Andy, who stood ready to act the part of gallant rescuer to the king's
+taste.</p>
+
+<p>It happened by mere accident that they were on that side of the sinking
+wreck where the larger man clung; and this was just as it should have
+been, since he seemed more in need of help, at least in far greater
+distress of mind, than the smaller man.</p>
+
+<p>&quot;Get ready, Andy!&quot; warned the pilot; &quot;I'll shut off the power if it
+seems best; but it may keep us on a more even keel if we move along.&quot;</p>
+
+<p>&quot;I'm going to try and get hold, and then pull him aboard; hope we don't
+have a spill, though!&quot; the other sent back, as he braced himself as best
+the conditions allowed.</p>
+
+<p>Frank gave one little turn to the rudder, for he was afraid that they
+might get past without coming in reach. Then the gap was completed, and
+Andy, leaning over, managed to get hold of the sinking man by the collar
+of his coat.</p>
+
+<p>There was where the greatest danger lay.</p>
+
+<p>When a man or a boy has the terror of drowning pressed in upon his
+heart, he is usually a most unreasonable being; and will even clasp his
+intended rescuer about the neck, and prevent him from carrying out his
+plans that might have worked well only for this blundering.</p>
+
+<p>&quot;Take it easy, you!&quot; yelled Andy, as he saw the man clutch hold of the
+framework of the hydroplane, and struggle desperately to work his way
+along to where the others were. &quot;If you give us half a chance we'll save
+you, all right; but upset us and well all like as not go down together.
+Slower, I tell you, or I'll give you this to teach you something. This
+ain't an ocean liner, d'ye understand. Let up!&quot;</p>
+
+<p>Whether it was the excited words of the boy, the manner in which he
+flourished that short steel bar, or his ferocious looks, that brought
+the excited man to his senses no one could ever say; but he did relax
+some of his frantic movements and began to act more within reason.</p>
+
+<p>This presently gave Andy the opportunity he wanted to stretch out a
+helping hand, and get a firm grip of the other's coat collar; after
+which he exerted himself to the utmost to assist him to climb aboard.</p>
+
+<p>What with his own weight, and the fact that his clothes were dripping
+with water, the addition of the new passenger caused the delicately
+constructed and already heavily freighted hydroplane to sink more
+deeply.</p>
+
+<p>Frank, in that supreme moment realized that it would be almost a
+hopeless task to think of once more flying, with such a cargo aboard.
+Possibly the best they could do would be to keep afloat, and hope that
+the pursuing tug might come up with them before the darkness set in;
+and they could all be rescued.</p>
+
+<p>Now that the first of the imperiled airmen had been hauled aboard, there
+remained but Casper Blue himself. The wreck had not as yet sunk wholly,
+since, relieved from the weight of the heavy man, it seemed to possess
+enough buoyancy to remain on the surface of the water. But this could be
+only for a short time; the planes would soon be thoroughly soaked, and
+then the end must come, when the clinging man would find himself
+deprived of all support, and must swim or go down.</p>
+
+<p>He had something of a half defiant look on his small sunburned face, as
+he saw Andy trying to draw the wreck toward him, with the evident
+intention of giving him the next opening. Perhaps he was half inclined
+to take his chances as he was, rather than allow these two boys to make
+him a prisoner.</p>
+
+<p>Frank had his mind made up. He figured that both men had been long
+enough in the water to have their weapons well soaked, so that they
+would be in no condition to threaten their rescuers.</p>
+
+<p>&quot;The box, make him pass it up first, or we leave him here!&quot; he called
+out to Andy, as the latter was about to reach out and lay hold of the
+smaller man.</p>
+
+<p>Casper Blue glared almost savagely at Frank. For the moment the Bird
+boys even thought the enraged man would hurl defiance back at them, and
+declare that he preferred taking his chances with the wreck rather than
+give up the spoils.</p>
+
+<p>But just then it happened, fortunately, that the remnant of the biplane
+began to settle more positively than before, warning him that it was
+folly to pin any hope on its buoying him up more than a few minutes at
+most.</p>
+
+<p>&quot;Here, take it!&quot; he snarled, handing up the box; which Andy immediately
+passed over to his cousin before he would stretch out his hand again to
+render the defeated yeggman any assistance.</p>
+
+<p>Then Casper Blue was drawn aboard, and lower still sank the buoyant
+hydroplane, until both propellers were almost wholly submerged beneath
+the surface of the heaving billows that came rolling on, steadily and
+remorselessly.</p>
+
+
+
+<br><br><hr style="width: 65%;"><br><br>
+<a name="CHAPTER_XXIII"></a><h2>CHAPTER XXIII</h2>
+<br>
+
+<p>BROUGHT TO BOOK&mdash;CONCLUSION</p>
+
+<p>&quot;What time is it, Frank?&quot; asked Andy, who w as breathing very hard after
+his recent exertions in helping both men to get a footing on the
+hydroplane.</p>
+
+<p>&quot;I think pretty close to four o'clock,&quot; replied the other, though he
+made no attempt to take out the little nickel watch, he always carried
+nowadays.</p>
+
+<p>The fact of the matter was that Frank did not dare trust Casper Blue. He
+could see that the little man was a desperate character, and that he did
+not view the prospect of being made a prisoner, and taken back to
+Bloomsbury with any great show of enthusiasm. In fact, it was a most
+unpleasant proposition for the bank thief to contemplate at all.</p>
+
+<p>And so Frank was watching him closely. He had, before starting on this
+dangerous air flight that had ended so far from home, and under such
+singular conditions placed a little pistol in his pocket, though hardly
+under the belief that he would have any occasion to make use of it.</p>
+
+<p>But he was now determined not to let this man get the upper hand. He
+could see that various desperate plans must be forming in that scheming
+brain of the one-time aviator, and now yeggman; and Frank was constantly
+on the watch so that he might not be caught napping.</p>
+
+<p>&quot;Four o'clock!&quot; repeated Andy; &quot;that would mean at least two more hours
+before the sun set, wouldn't it; and even after that it might stay light
+enough another hour for them to see us if they steamed along?&quot;</p>
+
+<p>&quot;You mean the people aboard that tug, don't you?&quot; asked Casper Blue,
+sneeringly.</p>
+
+<p>&quot;Yes, they seemed to be chasing after us, and I only hope they do keep
+moving,&quot; replied Andy, &quot;because they must have seen the accident, that
+is if they had any sort of a marine glass aboard, which I reckon they
+did.&quot;</p>
+
+<p>&quot;And I suppose, now, you think there might be officers aboard that same
+tug?&quot; the other went on to say.</p>
+
+<p>&quot;Oh! we don't know anything about that,&quot; Andy remarked, carelessly. &quot;But
+if they came along after a while it'd save us from a lot of worrying.
+Just think, if the night set in, and the four of us weighing this poor
+old hydroplane down like we are what a time we'd have before another
+morning came around.&quot;</p>
+
+<p>&quot;It would like as not rise, if there was only two aboard, wouldn't it?&quot;
+Casper asked quickly, and before Andy could understand what his question
+meant he had replied to it.</p>
+
+<p>&quot;Sure thing, Frank and myself have left the water many a time in a less
+powerful hydroplane than this, haven't we, Frank?&quot;</p>
+
+<p>&quot;Well, turn about is only fair,&quot; said Casper, fiercely.</p>
+
+<p>&quot;Why, I don't understand what you mean by that,&quot; complained Andy.</p>
+
+<p>&quot;Two's company, four a crowd; so please skip out of this, both of you
+boys. My pal and me can run this shebang, and just take my word for it,
+we mean to do the same. Get that straight, both of you? Now, jump, I
+tell you, and lively, or I might be tempted to let her go; and that
+would be a shame after the way you rescued the two of us. Overboard with
+you!&quot;</p>
+
+<p>Andy gaped when he saw that the man had actually drawn out a revolver,
+and was aiming the same directly at him.</p>
+
+<p>&quot;Here, quit that, will you?&quot; he demanded, feeling a flush of alarm, for
+even a seasoned veteran of many battles does not fancy having such a
+threatening weapon thrust under his nose.</p>
+
+<p>&quot;Jump, then, d'ye hear, consarn you?&quot; shouted the man, menacingly waving
+his pistol; &quot;take a header, and over you go, both of you! I'm a
+desperate man, and not to be fooled with. P'raps you c'n keep afloat on
+that wreckage long enough for the tug to come up, and pull you in. But
+no matter, over you go, one way or the other!&quot;</p>
+
+<p>&quot;Just wait a bit, Casper,&quot; said a quiet voice, and turning his head the
+man saw that Frank had him covered very neatly, &quot;you must know that your
+weapon has been soaked, and wouldn't go off, the chances are. Besides, I
+don't believe there's a single cartridge in the chambers. Throw it
+overboard, do you hear, Casper, or I may be tempted to cripple that
+other arm of yours!&quot;</p>
+
+<p>No doubt Frank was speaking the exact truth when he declared his belief
+that the revolver had not been charged since the time when Casper
+emptied it at the pursuing airship, in the hope of either frightening
+the boy aviators; or else doing some sort of damage.</p>
+
+<p>He stared hard at Frank for half a minute; then with some muttered
+words, as if he realized the folly of butting up against fate, threw
+the useless weapon far out on the heaving surface of the lake.</p>
+
+<p>After that a dense silence fell upon them. The men were too down-hearted
+to want to talk; and there was little that the boys had to communicate,
+because they were now in a position where they could do absolutely
+nothing to help themselves; and must depend entirely upon the coming of
+the tug.</p>
+
+<p>An hour passed, and it seemed very long. All of them were more or less
+wet because of the splashing waves; but as the air was balmy, they cared
+little for such a thing as that, if only the tug would show up.</p>
+
+<p>Innumerable times did Andy stretch his neck, and look toward the quarter
+in which it must appear, if it came at all; but the hour began to extend
+far into a second one, and as yet there was nothing seen that brought
+with it a ray of hope.</p>
+
+<p>Worse still the sea was gradually getting more and more tempestuous, it
+seemed to Andy, though the sky remained absolutely clear, and, there was
+not a sign of a storm.</p>
+
+<p>If that had been a fog in the far distance which Frank had sighted, the
+breeze must have long ago dissipated it entirely.</p>
+
+<p>Lower sank the sun, until it was now not more than half an hour above
+the horizon, if its stay could be measured in the way of minutes and
+seconds. Oh! if only the friendly tug would come in sight amidst the
+foam-crested waves! It was really getting to be too much of a good
+thing, trying to keep the hydroplane from keeling over, with those waves
+breaking against the frail planes. If this kept up much longer, Frank
+was very much afraid that Percy Carberry would not be the only boy in
+Bloomsbury to mourn the loss of an airship.</p>
+
+<p>When, therefore, Andy gave a sudden shout, and announced that he
+believed he had seen the smoke of the tug wreathing above the waves, all
+of them looked considerably relieved, even Casper himself; for on second
+thoughts the yeggman must have decided that it was better to be alive
+and in prison, than dead, and under the waters of Lake Ontario.</p>
+
+<p>In five minutes they could all see the smokestack of the powerful tug,
+and for fear lest it should pass by and not do them any good they
+shouted hoarsely in unison.</p>
+
+<p>&quot;They hear us!&quot; exclaimed Andy, whose position, somehow, allowed him to
+see better than any of the others, &quot;yes, they've changed their course,
+and are heading this way now. It's all right, Frank; we've won out, I
+guess!&quot;</p>
+
+<p>But Frank was keeping an eye on the two men. He did not mean to give
+them even the slightest chance to play a trick in the eleventh hour.
+Frank Bird was a pretty hard fellow to catch napping, he usually had his
+eyes open, and especially when he knew there was danger around.</p>
+
+<p>The tug came booming on, and they could see that there were quite a
+number of people aboard.</p>
+
+<p>&quot;What if some of them are from Bloomsbury?&quot; suggested Andy. At which his
+cousin laughed.</p>
+
+<p>&quot;You didn't stop to think twice before you made that break, Andy,&quot; he
+remarked. &quot;Tell me, by what conveyance could they have got to the lake
+ahead of us, when we came through by lightning express at the rate of
+nearly a hundred miles an hour at times? But I can see they are
+expecting to take charge of our friends here, because there's an officer
+aboard. Just keep where you are, Casper; your goose is cooked, and
+there's no need of making matters worse.&quot;</p>
+
+<p>The man settled back again with a growl, and then burst out into a
+reckless laugh.</p>
+
+<p>&quot;Small difference it makes, I guess, boys, how the thing's done, so
+long as we've got to go to the lock-up. You might just as well have the
+credit for the job as anybody; and man to man, now I want to say that
+I'm full of admiration for the fine way you handled that hydroplane of
+yours. If so be you're the Bird boys I've been hearing so much about,
+you've got the making of crack-a-jack aviators in you. That's about all
+from me now.&quot;</p>
+
+<p>The tug came alongside, and the two men were assisted aboard, where the
+police officer saw that they were promptly ironed.</p>
+
+<p>&quot;We got the word from Bloomsbury, and your father hired this tug right
+away, Andy Bird, to follow you out on the lake, if so be you kept after
+the rascals,&quot; said a tall gentleman with a white mustache, who, they
+afterwards learned, was the mayor of the city on the lake shore. &quot;Now
+what can we do for you?&quot;</p>
+
+<p>&quot;Please stand by, and let's see if we can get away,&quot; answered Frank, &quot;if
+not we'll have to go on board, and tow the hydroplane behind, but since
+relieved of so much extra weight the pontoons have risen again; and I
+expect she'll go.&quot;</p>
+
+<p>And she did, with the very first effort, beginning to move over the
+surface of the water in the lee of the tug; then, as Frank hastened to
+elevate the planes, the airship started to mount and when free from the
+lake a mighty cheer broke from the lips of those aboard the small
+vessel, even Casper Blue joining in giving the brave lads their just
+dues.</p>
+
+<p>Frank carefully started back toward the American side of the lake. He
+did not know whether the capture had been made on the Canadian side or
+not, and as the question was never raised, even in the trail of the bank
+robbers it was never wholly clear in his mind.</p>
+
+<p>When they reached land it was early night; and save that the wind had
+lulled considerably, they would not have been able to get in for a long
+time after that. As there was no need of their hurrying homeward, Frank
+and Andy consented to stay over as the guests of the mayor, who was more
+than pleased to have the famous Bird boys stop under his roof.</p>
+
+<p>But first Frank made sure to send a message to each of their homes; as
+well as to Chief Waller, who would have to come on and get the two bold
+men who had broken into the Bloomsbury bank and about cleaned out the
+vault; and not content with one haul, were planning to rob the pay-car
+when it stopped in Bloomsbury to settle with a large number of employees
+centering there.</p>
+
+<p>Doubtless that must have been a season of considerable excitement in
+the home town; and the names of Frank and Andy Bird were cheered to the
+echo by the crowds of town boys Larry and Elephant would lead around,
+burning red lights and firing off Roman candles purchased with money
+supplied by Dr. and Professor Bird, the happy fathers of the two young
+heroes.</p>
+
+<p>On the following day Chief Waller was on hand with one of his men to
+escort the prisoners back to the town where their latest crime had been
+committed. Frank had already sent the little camera box with its
+valuable contents, just as he had received it from Casper Blue, to the
+president of the bank by express, not caring to hold it any longer in
+his hands than was absolutely necessary.</p>
+
+<p>About noon, the conditions being favorable, the Bird boys sailed away
+amidst the cheers of half the little city, and headed directly south on
+a bee line for home.</p>
+
+<p>Fortunately enough no further adventures overtook them on their way
+there, and as their coming had been announced they found the whole town
+in an uproar, and came near being mobbed, such was the desire of every
+man, woman, boy and girl to have the honor of shaking hands with them.</p>
+
+<p>Percy was on hand too, with a thousand questions concerning the fate of
+his precious biplane, and bemoaning the fact that he seemed to be the
+most unlucky fellow who had ever attempted to bring honors to
+Bloomsbury. But there were precious few who sympathized with him; and
+everybody knew that all he had to do was to demand that his mother
+advance the ready cash to buy another flier, and it was sure to be
+forthcoming.</p>
+
+<p>But there were other lively times in store for Frank and Andy Bird,
+although neither of them suspected it just then, and believed that a
+period of calm would likely follow their hydroplane round-up. What the
+nature of these exploits were the reader who has accompanied us in our
+voyage through the pages of this book, will learn when he purchases the
+next story in this series, now on sale under the title of &quot;The Bird
+Boys' Aeroplane Wonder or, Young Aviators On a Cattle Ranch.&quot;</p>
+<br>
+
+<p>The End.</p>
+<br>
+
+
+
+
+
+
+
+
+<pre>
+
+
+
+
+
+End of the Project Gutenberg EBook of The Aeroplane Boys Flight
+by John Luther Langworthy
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+
diff --git a/old/10576.txt b/old/10576.txt
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@@ -0,0 +1,6130 @@
+Project Gutenberg's The Aeroplane Boys Flight, by John Luther Langworthy
+
+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 Aeroplane Boys Flight
+ A Hydroplane Roundup
+
+Author: John Luther Langworthy
+
+Release Date: January 2, 2004 [EBook #10576]
+
+Language: English
+
+Character set encoding: ASCII
+
+*** START OF THIS PROJECT GUTENBERG EBOOK THE AEROPLANE BOYS FLIGHT ***
+
+
+
+
+Produced by Juliet Sutherland, Dave Morgan and PG Distributed
+Proofreaders
+
+
+
+
+
+THE AEROPLANE BOYS FLIGHT
+
+Or A Hydroplane Roundup
+
+
+By JOHN LUTHER LANGWORTHY
+
+
+
+
+
+MADE IN U.S.A.
+
+M.A. DONOHUE & COMPANY
+
+CHICAGO NEW YORK
+
+1914
+
+
+
+
+CONTENTS
+
+
+Chapter
+
+I--THE BOY FLIERS
+
+II--ON GUARD
+
+III--NOT CAUGHT NAPPING
+
+IV--THE STARTLING NEWS
+
+V--THE EXCITEMENT GROWS
+
+VI--FIGURING IT ALL OUT
+
+VII--THE AIR SCOUTS
+
+VIII--JUST BELOW THE CLOUDS
+
+IX--THE PILOT OF THE MERMAID
+
+X--HEARD OVER THE WIRE
+
+XI--COMPARING NOTES
+
+XII--AT THE HOSKINS FARM
+
+XIII--THE BUTTERFLY COLLECTOR
+
+XIV--A CLUE
+
+XV--WHEN CASPER CAME BACK
+
+XVI--THROWING OFF THE MASK
+
+XVII--SALLIE RIDES BAREBACK
+
+XVIII--AN AEROPLANE CHASE
+
+XIX--DROPPING A "BOMB!"
+
+XX--OVER LAND AND SEA
+
+XXI--OVER THE BOUNDARY LINE
+
+XXII--THE HYDROPLANE RESCUE
+
+XXIII--BROUGHT TO BOOK--CONCLUSION
+
+
+
+
+THE AEROPLANE BOYS FLIGHT
+
+Or A Hydroplane Roundup
+
+
+
+
+CHAPTER I
+
+
+THE BOY FLIERS
+
+"It was my mistake, Frank!"
+
+"How do you make that out, Andy?"
+
+"Simply because I was using the little patent Bird monkey-wrench last in
+our shop, and should have put it back in the toolbox belonging to the
+aeroplane. The fact that it isn't here shows that I mislaid it. Give me
+a bad mark, Frank."
+
+"Well, I must say it's a queer stunt for you to forget anything, Andy
+Bird. But with dark coming along, and home some miles away, it's plain
+that we'll have to let the mending of that wing go till morning."
+
+"But do you think, Frank, it's just safe to leave our pet hydroplane
+over night in this field on the Quackenboss farm?"
+
+"Why not, Andy? Sky as clear as a bell; little or no wind promised; and
+then we can hire the farm hand, Felix Boggs, to keep an eye on it. Looks
+as easy as falling off a log."
+
+"And all because I didn't put that little wrench where it belonged!
+Kick me, won't you, please, cousin; I deserve it."
+
+"Well, I guess not. Didn't I make just as bad a break last week? I guess
+now, no boy's perfect. And I don't mind the walk home a bit. Fact is, it
+ought to do us both good, because we don't stretch our legs enough, as
+it is."
+
+"You're the boss chum, Frank!"
+
+"Then you're another. See what you get for calling me names. But when
+you've fastened down that plane so it can't get into trouble, if the
+wind should rise in the night, perhaps we'd better be hunting up this
+Felix Boggs, and then start for home.
+
+"Well, I'm glad we'll get there in the night-time, Frank, even if the
+moon does happen to be nearly full."
+
+"What makes you say that, Andy?"
+
+"Because, when an aviator leaves his wounded machine in a field, and
+walks home, it makes him feel like a dog with his tail between his legs,
+sneaking along back of the fences."
+
+Frank Bird laughed merrily at the picture drawn by his cousin and then
+stooping again, with a few deft turns of a heavy cord, helped Andy
+secure the broken plane so it would not get into trouble during the
+coming night.
+
+After which the two boys headed toward the barns belonging to the farm,
+which just showed their tops above the adjacent rise.
+
+While they are walking there it may be a good time for us to introduce
+the pair of young aviators to such readers as have not had the good
+fortune to meet them in previous volumes of this series of stories.
+
+The cousins lived in the town of Bloomsbury, a thriving place situated
+on the southern shore of Sunrise Lake, which was a magnificent body of
+water, said to be nearly seventeen miles long by three wide, in places.
+
+This lake having hilly shores that were heavily wooded in spots, and
+with numerous fine coves, afforded grand sport to the young people of
+Bloomsbury, both winter and summer.
+
+The railroad skirted one shore and then passed through the town. Some
+miles off arose a lofty peak known as Old Thundertop, which had a road
+running part way up its side. The summit was believed to be utterly
+inaccessible to mortal man until one day the Bird boys managed to
+accomplish the wonderful feat by the aid of their aeroplane.
+
+They had been spending all their spare time, when not in school, working
+upon the line that seemed to have a strange fascination for them.
+Frank's father was one of the best known doctors in town, a man of
+considerable means, and with a firm faith in his boys, so that he was
+easily convinced whenever Frank wished to do anything.
+
+Andy had been living with his guardian for some time, until the return
+of his own father, Professor Bird, who had been lost while attempting a
+difficult balloon trip in Central America, and found in a most
+miraculous way by the two boys as told in a previous story.
+
+Andy had inherited the passion which his father, a noted professor, had
+always had for navigating the air. It was a favorite expression of his
+"A bird by any other name would fly as high," and his cousin would
+retort: "A Bird takes to the air just as naturally as a duck does to
+water."
+
+They had been doing some fine "stunts" during the last year or two; and
+it may be supposed that the people of Bloomsbury were more than a little
+proud of seeing the name of their town mentioned so favorably in the
+papers in connection with the doings of the Bird boys.
+
+Of course, as is always the case, there was a rival in the field, who
+had been the cause of much trouble in the past, and still watched their
+work with an envious eye. This was a boy by the name of Percy Shelley
+Carberry, rather a bold fellow too, and as smart as they make them, only
+unscrupulous as to the means he employed by which to gain his ends.
+
+Percy was the only son of a rich widow, who could never refuse him
+anything he demanded; and with unlimited cash at his disposal he had
+been able to do quite a few feats himself that might have gained him
+more or less fame, only that they were eclipsed by the accomplishments
+of Frank and Andy; and that was where the shoe pinched with Percy.
+
+His temper was one of his weak spots, also a liking for fast life,
+which, of course included tippling; and the aviator who indulges to the
+slightest degree in strong drink is next door to a fool; for as he takes
+his life in his hands every time he leaves the ground, the necessity for
+a clear brain is apparent.
+
+In most of his tricky work young Carberry had for a boon companion one
+"Sandy" Hollingshead, a sinewy chap, whose most prominent trait was his
+faculty for disappearing suddenly in a pinch. He was considerable of a
+boaster, but could always invent a most remarkable excuse for going
+before the storm broke. But Percy, no coward himself, knew how to make
+use of his sly crony; and despite their numerous quarrels, that often
+ended in actual fights, the pair of precious tricksters still kept
+company together.
+
+Sandy was freckled had pale eyes and very blonde hair, that gave him a
+queer look. Those eyes never could look any one straight in the face,
+but shifted uneasily; and other boys said that Sandy, the cigarette
+smoker, was always on the watch for a quick "getaway."
+
+The Bird boys, of course, had many friends among the lads of Bloomsbury;
+but only two who were close enough to be admitted freely to the workshop
+on the grounds of Frank's father's place, where the young inventors
+worked out many of their lofty ideas.
+
+These were Larry Geohegan, and a small runt who had been called
+"Elephant" by his companions in a spirit of sport, and could not shake
+the name. His full name was Fenimore Cooper Small, and as a rule he had
+always been rather timid. But Elephant was always having queer ideas in
+which he believed fully himself; but which were nearly always jeered at
+by more practical Larry.
+
+The two Bird boys had been out on this afternoon, trying some new
+arrangement in connection with their hydroplane, when they met with an
+accident when attempting to land on the Quackenboss farm, to make some
+changes they saw were needed, to improve the working of the machine.
+
+Neither of them had been even scratched, but a certain amount of damage
+had befallen one of the planes, which might have been remedied on the
+spot in time to allow them to get back home easily, only for the
+unfortunate fact that just when they needed a monkey wrench the worst
+kind, it was discovered to be missing; perhaps the only occasion when
+such a thing had happened with the boys.
+
+"I just saw somebody go into the barn there," remarked Frank, as they
+approached the large outbuildings connected with the successful farm of
+Josiah Quackenboss.
+
+"Yes, and it was the farmer himself," added Andy. "I know him pretty
+well; and I guess you do too, because your father brought his little boy
+around when everybody thought he didn't have a single chance to get
+well. I don't believe we'll have any trouble getting Felix Boggs to look
+after our machine tonight, Frank."
+
+They quickly reached the door of the barn and could hear the steady fall
+of the streams of milk passing into the buckets as the farmer and his
+hired hand pursued the regular business of the evening.
+
+As the two boys entered, the half grown boy started up with an
+exclamation of alarm, for of course both Andy and Frank looked rather
+queer. Each of them had on a white woolen hood that fitted close to head
+and shoulders, for the air in the upper currents was very cold these
+days, and secured to this were goggles to protect the eyes, so that they
+would not water and dim the vision of the aviator at just a critical
+instant when they needed clear sight. Then they also wore warm colored
+mackinaw jackets, so that altogether Felix had reason to be startled
+when two such "sights" suddenly entered the barn. Why, even the gentle
+cows showed evidence of nervousness, and came near upsetting the milk
+buckets.
+
+"Hello, Mr. Quackenboss!" called out Andy, cheerfully; "we're the Bird
+boys, and we've dropped in on you without an invitation. The fact is, we
+had a little trouble with our aeroplane, and landed in your field. How
+much rent will you charge us, Mr. Quackenboss; to let our machine lie
+there over night? It needs a little fixing which we can't do until
+morning."
+
+Of course Andy was joking when he said this, and the farmer knew it as
+well as anything. He laughed as he came around out of the stall and
+offered his rough hand to each of the boys.
+
+"How are you, Andy and Frank Bird?" he said, hearty. "Say, you did give
+us a little start when we first saw you. D'ye know what I thought boys?
+Why, I was just reading in the county paper about how the bank up at
+Jasper was robbed by two men last week. It told how they had their faces
+hid back of red handkerchiefs, just like they always do out West, you
+know. And first thing I sighted you two, my heart nigh about jumped up
+in my mought, because I thought them yeggs had dropped around to see if
+I'd collected my monthly milk accounts in town. And about leavin' your
+aeroplane in my field, why, there's little that I wouldn't do for the
+son of the man who saved my Billie, when everybody said he'd never get
+well again."
+
+"We thought you might let us show Felix here where the aeroplane lies,
+and that we could arrange with him to kind of keep an eye on it tonight.
+Of course, there isn't one chance in a thousand that anything'd happen
+to injure it; but then that machine represents a heap of hard work, and
+considerable money besides, so we don't care to take chances with it.
+
+"Sure he can, just as well as not, eh, Felix? Suppose you go out right
+now, and I'll finish the milking. In the morning I want to take a look
+at that contraption myself. I've seen you boys sailing around more'n a
+little, but never got close up to examine the aeroplane. Well, I guess
+all the money going couldn't tempt me to go with one of you. Skip along,
+Felix, now."
+
+And the farm hand, a heavy-set boy, eagerly fell in behind Frank and
+Andy, as, after thanking Mr. Quackenboss heartily for his kindness they
+passed out of the barn. Felix considered this an event in the tame
+routine of farm life; and would be only too glad to stay up all night,
+if necessary, in order to guard the precious aeroplane.
+
+Once in the field, the boys explained to Felix what they wanted him to
+do, and he promised not to meddle with anything connected with the
+engine or the aeroplane itself.
+
+They were passing back again toward the barns, having left their prized
+possession in good shape, when Andy uttered a sudden exclamation that
+told of both surprise and disgust.
+
+"What's the matter now?" asked Frank, who had been talking with Felix,
+and was hence not so wide awake as his chum.
+
+"Just take a look over there, and see what's stopped on the road,"
+remarked Andy.
+
+"Seems to be a car, and I can see two heads raised above the top rail
+of the fence, as if the people in it had sighted our aeroplane sprawled
+out there in the field, and were wondering what sort of giant insect it
+could be," Frank went on.
+
+"Look closer, Frank," the other boy went on to say, while his disgust
+deepened; "and you'll discover that the two fellows in that car happen
+to be Percy Carberry and his shadow, Sandy Hollingshead. Did you ever
+hear of such tough luck? Of all the boys in Bloomsbury they are the last
+we'd want to know that we'd left our new hydroplane out, unguarded, all
+night, in an open field. Guess I won't go home tonight, Frank. I'd
+rather camp out here with Felix. You let my folks know, and turn up in
+the morning with a new piece for that plane. That's settled and you
+can't change it."
+
+
+
+
+CHAPTER II
+
+
+ON GUARD
+
+"Perhaps I'd better stay with you, Andy," the other Bird boy remarked.
+
+"No need of it," replied Andy, resolutely. "Besides, you know one of us
+ought to get busy in the shop, making that new piece we really need so
+that our job won't have to be done over again. You go, Frank. Perhaps
+Mr. Quackenboss would let you have a horse; or if you cared to, you give
+Percy a hail, and he'd take you back to town, I reckon. Goodness knows
+he owes you a heap, after the way you saved his life the time he was
+wrecked up on Old Thundertop."
+
+What Andy referred to was a very exciting event which had occurred not
+so very long before, and which was fully treated in the volume preceding
+this.
+
+Frank shook his head in the negative.
+
+"I never want to ask any favor of Percy Carberry," he said, resolutely.
+"And if Mr. Quackenboss can't let me have a horse to ride, why, the
+walking is good, and I can make it in less than an hour. So don't
+mention that again please, Andy."
+
+"It's too late now, anyhow," remarked the other, drily, "because there
+they go, spinning down the road like wildfire. Percy never does anything
+except in a whirl. He's as bold as they make them, and the only wonder
+to me is that he hasn't met with a terrible accident before now. But
+somehow he seems to escape, even when he smashes his flier to kindling
+wood. His luck beats the Dutch; he believes in it himself, you know."
+
+"But some day it's going to fail, and then he'll never what happened to
+him," declared Frank. "Of all the professions in the world, that of a
+flying machine man is the one where a cool head and quick judgment are
+the things most needed. And the fellow who takes great chances,
+depending on his good luck, is bound to meet up with trouble. But if you
+are bound to stay, Andy, I'd better be off."
+
+Upon entering the barn they found that the farmer had finished his task,
+and was pitching some new sweet hay to the cows.
+
+Frank suggested hiring a horse from him, but Mr. Quackenboss scoffed at
+the idea.
+
+"You're as welcome to the use of my saddle hoss as the sunlight is after
+a spell of rain," he said, heartily. "Here, Felix, get Bob out; and
+you'll find my new saddle hanging on that peg back of the harness room
+door. And as for Andy, who's going to stay over with us, we'll find a
+chair for him at the supper table, and only hope hell tell us some of
+the many things you two have gone through with, both around this region,
+and away down in South America, that time you found the lost Professor."
+
+Inside of five minutes Frank was in the saddle, and waving his hand to
+his chum and cousin, of whom he was more fond than if Andy had been his
+own brother.
+
+"He'd be back tonight with the part we need, and we could make home in
+the moonlight," said Andy, as, with the farmer he headed for the house;
+"only both of us have promised our folks not to travel at night-time
+when it can be helped. Even if the moon is bright there's always a risk
+about landing, because it's a tricky light at the best, and even a
+little mistake may wreck things. And so Frank will work in the shop
+tonight, and be along in the morning."
+
+Once in the farmhouse Andy was given a chance to wash up, and then met
+the housewife, as well as little Billie, the small chap whose life good
+Doctor Bird had saved. Mrs. Quackenboss proved to be a very warm-hearted
+woman, and any one who answered to the name of Bird could have the very
+best that the place afforded. There was never a night that she did not
+call down the blessings of heaven upon the physician who had been
+instrumental in preventing her darling Billie from being taken away.
+
+The table was fairly groaning under the weight of good things to eat,
+for when company comes the average farmer's wife never knows when to
+stop bringing out the most appetizing things to eat ever seen.
+
+"Perhaps I'm the luckiest fellow going to be able to stay over-night
+with you, Mrs. Quackenboss," laughed Andy, as he sat down to the
+generous spread.
+
+"Well, you know, we never like anybody to get up from our table hungry,"
+she explained.
+
+"The chances are that I won't be able to get up at all, for if I try to
+taste half I see here, I'll be foundered, as sure as anything," Andy
+went on to say.
+
+The farmer was not going to allow much time to pass talking about common
+every-day topics. Those might do all very well when he had ordinary
+guests; but when fortune sent him one of the now famous Bird boys for
+company, he wanted to listen to some thrilling accounts of adventures
+that had come the way of the young and daring aviators, from the time
+they built their first aeroplane, after purchasing most of the parts,
+and found that they had an immediate rival in Percy Carberry.
+
+Andy was willing to oblige, and kept those at the table, including the
+farm hand, Felix Boggs, thrilled with his stories. But the farmer could
+not help but notice how modest the boy was, giving most of the credit to
+his cousin Frank, when everybody about Bloomsbury knew that Andy
+deserved just as much credit, if not more, than the other Bird Boy.
+
+After supper Andy and Felix prepared to go out to where the hydroplane
+lay. They meant to take blankets along, and make themselves as
+comfortable as possible for a night's vigil.
+
+Andy would not have dreamed of doing this only for the fact that he knew
+Percy and his shadow, Sandy, were aware of the plight of the precious
+flier. And while Frank was inclined to partly believe that the Carberry
+boy might let up in his mischief-making ways for awhile at least, after
+all they had done for him up on Old Thundertop, Andy could not bring
+himself to trust the other further than he could see him. He believed
+that the nature of Percy was so "rotten" as he called it, that, given a
+chance to injure his successful rivals, he would shut his eyes to all
+sense of gratitude, and just lie awake nights trying to get the better
+of them, by fair means or foul.
+
+Andy also knew that the other was particularly chagrined, because he did
+not know what manner of a new flier the Bird boys had in hand now. He
+had resorted to various expedients in order to find out, but all without
+success.
+
+On this account, if no other, then, Andy believed that the others would
+be apt to come out here during the night to examine the hydroplane with
+the aluminum pontoons under its body for floating on the water; and
+perhaps to slily injure it in such a fashion that it would break down
+when next Frank and Andy mounted into the air.
+
+It happened that they had alighted close to one corner of the big field,
+though in plain view from the pike. Andy had noted a clump of trees
+conveniently near, and already his mind was made up that he and Felix
+would camp there, to pass the night in alternately keeping watch and
+ward over the precious aeroplane that lay there like a wounded bird.
+
+Felix was quivering with eagerness. This was like a picnic in the
+humdrum life of the farm hand. Except when the circus came to town, or
+there was a Harvest Home day, poor Felix knew little beyond the eternal
+grind of getting up before dawn, and working until long after sunset.
+
+First of all, Andy walked around the stranded aeroplane, and took
+occasion to explain how it worked, using as simple language as he could
+find, because Felix was not at all up in professional terms, and would
+not have understood, had the other spoken as he might have done when
+talking with a fellow aviator.
+
+Then they sought the trees, and spreading their heavy blankets so as to
+make as comfortable a seat as possible, started to talk in low tones.
+
+The bright moon hung there in the sky, and it seemed as though every
+foot of the big meadow could be scrutinized just as well as in the
+daytime; but Andy knew from experience how deceptive moonlight can be,
+and how cautious one has to be when trying any difficult feat at such a
+time.
+
+"I've heard people talk about reading by moonlight, and how they could
+tell a friend half a mile away," he remarked to Felix; "but let me say
+that it's all a humbug. There never was a brighter night than this, I
+reckon you'll agree with me, Felix; and yet look at that stump not a
+stone's throw away; you couldn't say now whether it was a cow lying
+down, a horse, a rock, or a stump, which last I take the thing to be.
+Am I right about that."
+
+"Why, sure's I live, that ere is a fact, Andy," replied the other; "but
+I never'd a thought it. Moonlight fools a feller the worst kind. I
+throwed a stone at a whippoor-will as was perched on the roof a-keepin'
+us all awake nights, and would yuh believe me, she went right through
+the winder of the attic, kersmash. Never was more surprised in my life.
+And you don't ketch me heavin' stones by moonlight agin."
+
+From one subject they drifted to another. Andy even told more or less
+about how Percy Carberry had hated and envied them in the past, and how
+often he had tried to do them a serious injury.
+
+"Frank seems to think he will give up that mean sort of play, because we
+really saved his life that time we had our race to the rock on the
+summit of Old Thundertop, and his aeroplane was smashed there; so one of
+us had to carry Percy and Sandy home, bruised as they were. But I don't,
+because I know it'd take more than that to change the spots of a fellow
+of his kind. And chances are, Felix, we'll find those two boys sneaking
+up here before the middle of the night."
+
+"Wish't they would," chuckled the farm hand. "You're ready to give 'em
+a warm time of it, I guess, Andy. Be as good as any old circus to me,
+just to see how they jump when you open up. Let 'em come, says I. The
+sooner the better, too."
+
+Long they lay there, and talked in low tones. Felix wanted to make the
+best of this glorious chance. A new world seemed to open up to the farm
+hand, as he heard of the wonderful things the Bird boys had seen, and
+taken part in. Perhaps ambition was beginning to awaken in the boy's
+soul, and he might not after this be so satisfied to plod along in the
+same old rut every day of the year. Perhaps the seed thus sown might
+take root, and bring him either great good or harm, as the tide of
+fortune chose.
+
+"We heard as how a feller was up there to watch you boys fly not a great
+while ago, Andy," he went on to say; "an' he was so took by the way you
+managed things that he wanted to get you to go in with a big concern run
+by a boss airman; but you just up and told him you couldn't do that
+same. Was that so?"
+
+"Why, yes, you must mean Mr. Marsh," returned the other, modestly. "I
+believe he did read some account of us that got into the papers, and was
+sent up here to look us up. He was kind enough to compliment Frank on
+the way he made that corkscrew climb; and also on his volplane drop;
+said we had both of them down pretty fine; and he did hint at our having
+a chance to go in with his company; but of course we couldn't think of
+that. We're too young to dream of being professional fliers yet; and
+besides, we've got to go to school again pretty soon. So we turned the
+offer down. But Mr. Marsh was mighty kind, and we liked him a heap."
+
+"Heard how he was watching you fly, when that little chap belonging to
+Cragan, the fisherman, got overboard, out in the lake; and this same
+gent, he saw Frank dive right off his aeroplane like a bullfrog, and
+save little Tommy. That jest took him by storm, he told Mr. Quackenboss,
+and he meant to get you boys for his company if money could do it, but
+it all ended in smoke, didn't it."
+
+It was almost half past nine before Andy decided that the time had come
+for them to shut up shop, and do no more talking.
+
+"I'm going to take the first watch myself, Felix, and I promise to wake
+you up when I get to gaping, whether it's midnight or two in the
+morning," he said, as he settled himself more comfortably on his
+blanket, and pulled it up over his shoulders, because the night air was
+already quite chilly, and would undoubtedly be much more so ere long.
+
+"But chances air, Andy, they're a-goin' to come inside an hour or so;
+and you must promise to give me a kick, if so be I'm sleepin', then. You
+will, won't you?"
+
+"Sure," replied the Bird boy. "After you being so kind as to keep me
+company, I'd never think of making a move, and you asleep. So just
+settle down, and don't get excited if you feel me pushing my toe into
+your ribs later on."
+
+Felix was tired from his day's work. He had probably been constantly
+busy since four the morning before. It was therefore a fight between
+weary muscles and brain, and the desire to stay awake, in order to see
+all that went on.
+
+This lasted for perhaps ten minutes.
+
+Then Andy knew that Nature had won out, for he could catch the regular
+breathing of the stout farmhand, and from this judged that Felix must be
+sound asleep.
+
+From where Andy sat he had a fine view of the field on all sides of the
+broken hydroplane, and especially in that quarter toward the fence,
+beyond which the road leading to Bloomsbury lay.
+
+He kept up a constant watch, never relaxing his vigilance for a single
+second, for Andy knew that while one might be on guard for fifty-nine
+minutes, if he relaxed just for a breath, that was almost sure to be the
+time when something would happen. How often he had proved that when
+fishing, and taking his eye from his float just to glance up at some
+passing bird, when down it would bob, and he had missed a chance to hook
+a finny prize.
+
+The time passed on.
+
+Three separate times did Andy look at his little dollar nickel watch,
+and in the bright moonlight he could see that it was now after eleven.
+He was beginning to believe that if there was anything doing that night,
+it must come about very soon, when he thought he heard a sound down the
+road that made him think a car that had been coming along had stopped
+short.
+
+Thrilled with the expectation that a change was about to occur, he sat
+up a little more eagerly, and continued to scan the line of fence, as
+well as the field lying between the road and the helpless hydroplane.
+
+
+
+
+CHAPTER III
+
+
+NOT CAUGHT NAPPING
+
+Five, ten minutes passed.
+
+Andy was beginning to fear that after all he had been mistaken, and that
+it had been some other sound he had heard when he thought a car had
+stopped down the road toward Bloomsbury.
+
+Then all at once he detected a movement over at the fence, and the
+figure of a man or boy was seen to quickly clamber over, dropping in the
+field. Even as he looked a second followed suit, then a third and even a
+fourth.
+
+"Whew! what's all this mean?" Andy whispered to himself, as he took
+notice of the fact that there was quite a procession of fellows changing
+base from the road to the field: "Percy and Sandy thought they might
+need help in their little game of smashing our machine, or carrying it
+off somewhere, so as to give us a bad scare; and I reckon they've picked
+up a couple more of the same kind as themselves. Well we ought to be
+able to take care of four just as easy as two 5 and the howl will be
+all the louder, I guess."
+
+He moved over a little, and with the toe of his shoe nudged Felix under
+the ribs.
+
+"Quit shovin' there!" muttered the farm hand, possibly thinking he was
+in bed with some other boy.
+
+Luckily the night breeze was making the windmill turn, not very far
+away; and as it needed oiling, there was a constant succession of
+squeaks and groans; so that the chances of Felix being heard when he
+spoke in this way were very small. Andy would not take any further risk
+but creeping over shook the boy roughly.
+
+"Wake up, Felix; they're coming across the pasture!" he whispered in his
+ear.
+
+That was quite enough for Felix. He seemed to grasp the situation at
+once, and only muttering the one significant word, "Gosh!" he
+immediately sat up.
+
+Andy, moving as little as possible, pointed to where moving figures
+could just be detected advancing in a bent-over attitude.
+
+"How many?" whispered the farm hand.
+
+"I counted four," replied the other.
+
+"Whee! bully for that!" chuckled Felix, no doubt tickled because the
+promised circus would be a double-ring affair, instead of the ordinary
+kind, and therefore quite up to date.
+
+Both of them lay there watching intently.
+
+They could see how the intruders were crawling along, anxious apparently
+only to avoid being seen from the direction of the farmhouse, the roof
+of which showed dimly in the moonlight over on the other side of the
+little ridge.
+
+As the creepers drew closer, the watchers saw that they had adopted the
+method spoken of by the farmer in connection with the bank thieves,
+keeping their identity secret--they all seemed to have handkerchiefs
+tied across their faces, and kept their hats pulled well down, so that
+they could easily have passed close to an acquaintance without much risk
+of discovery.
+
+Of course Andy could tell that they were boys, and not men; and it was
+an easy task for him to guess who two of the party at least must be.
+
+The preparations he and Felix had made were about as simple as anything
+could be. The farm hand possessed an old musket that had been used in
+the Civil war, and which, muzzleloader that it was, had probably brought
+down many a plump rabbit when held in the hands of the owner, as well as
+black ducks in the marshes along the shore of Lake Sunrise.
+
+Besides this, the farmer had loaned Andy his double-barrel Marlin
+shotgun, an old model when compared with the up-to-date hammerless and
+the repeaters, but no doubt a good, serviceable weapon.
+
+Of course they had no idea of trying to pepper the marauders, though it
+would seem as though they richly deserved to be punctured with a few
+small bird shot, because of the meanness of their contemplated action.
+
+To give them a good fright would satisfy Andy, and he had made the eager
+farm hand promise to fire up in the air also because he was afraid lest
+Felix allow his indignation to have full swing, when he saw what the
+four boys meant to do.
+
+They were skulking very close to where the aeroplane lay now, and the
+critical moment had undoubtedly arrived when the surprise must be
+launched.
+
+"Ready, Felix!" he whispered, in the softest of tones.
+
+"Yep!" grunted the farm hand, at his elbow.
+
+"One, two, three! Blaze away!"
+
+With the last word Felix let go with his old musket, into which he must
+have rammed a tremendous charge, for it made a report like unto the
+crash of thunder, and came very near sending the owner flat on his back.
+
+Immediately on the heels of this boom Andy pulled one of the triggers
+of his double-barrel, so that the report seemed almost merged in with
+that of the other weapon.
+
+The four boys had jumped to their feet at the flash and report which
+startled them when Felix fired. And as they turned to dash wildly away
+and that second shot came, they became madly excited, evidently under
+the full belief that they were being made targets for a whole battalion
+of sharpshooters.
+
+Two of them collided, and rolled over on the grass, kicking wildly and
+scrambling to their feet again, to resume their flight toward the fence,
+which doubtless seemed three times as distant as when they were creeping
+toward the stranded aeroplane.
+
+The whole thing was so ridiculous that Andy burst out laughing, and
+could hardly hold his gun; seeing which the farm hand made bold to
+snatch it out of his hands, and aiming directly at the place where the
+fugitives were just then in the act of mounting the fence in their
+panicky flight, he pulled the trigger.
+
+There was a series of loud yells, which would seem to indicate that a
+few of the small shot contained in the shells with which the Marlin had
+been loaded must have reached their mark, and pricked the boys like so
+many needles would have done.
+
+That was the last seen of them, though for a short time they could be
+heard running along the hard road, and exchanging excited comments,
+possibly comparing their injuries.
+
+Then a car was heard to start off with a great deal of bluster, and came
+dashing along past the farmhouse, though those in it bent low enough to
+keep any one from discovering who they might be.
+
+Andy did not know whether to be a little angry or not because of what
+the impetuous Felix had done, but apparently nobody had been seriously
+hurt; and on the whole, the four "sneaks," as Felix called them,
+deserved some punishment; so he let it go at that.
+
+There was no further alarm that night. Neither of the guardians of the
+hydroplane expected any, after the prompt measures that had been taken
+to inform meddlers of the warm reception they might expect.
+
+All the same, Andy kept up his vigil until sleep almost overpowered him,
+when he aroused Felix to finish out the night.
+
+With the coming of early dawn he knew that the safety of the imperiled
+aeroplane was assured, and that when the horn blew, he and Felix could
+both go in to breakfast. Indeed, he released the farm hand long before
+that time, so that he might go about his usual early morning chores; and
+Andy himself found plenty to do around the machine until summoned to the
+morning meal.
+
+The farmer was a hard sleeper, and had not heard a single thing that had
+taken place; so that he was surprised when told how the enemy had come
+after all, and what measures the boys had taken in order to frighten
+them away.
+
+He even told Felix he could have a day off as soon as the last load of
+hay was in the barn, just to show how he appreciated the bold way in
+which his hired help had tickled the rascals when they were getting over
+the fence. Indeed, the farmer said Andy had been too lenient, and that
+if it had been his aeroplane that was threatened in that mean way, he
+would have felt wholly justified in emptying both barrels of the gun
+after the marauders, first giving them time to get a certain distance
+off, so that no serious results might follow the discharge.
+
+But Andy was never a vindictive lad, and he believed the fellows had
+received sufficient punishment, especially as no one knew exactly what
+they had meant to do in connection with the new hydroplane. Possibly
+Percy only wanted to look it over at close quarters, and knowing he
+would not be allowed to do so if he asked permission outright, sought to
+take this opportunity. But from the way in which they had rigged
+themselves out, so as to avoid being recognized, if seen, it looked as
+though the four boys had something more than that in view.
+
+However, all's well that ends well, and Andy was quite satisfied with
+the way things had turned out.
+
+"Here's hopin' a few of 'em may be limpin' 'round this same mornin', and
+feelin' rayther stiff in the legs," Felix took occasion to remark, as
+they sat at table, and Andy was again in danger of being foundered by
+the multitude of good things which the farmer's wife spread thereon,
+bacon and eggs, fried potatoes, scrapple, puffy biscuits, apple sauce,
+doughnuts, cold pie, jelly, and finally heaping dishes of light
+pancakes, which were to be smothered in butter and real maple syrup made
+on the farm each early spring when the sap was running.
+
+"I expect Frank will be along any minute now," Andy remarked, about the
+time he had to firmly refuse a fourth helping of cakes, because he could
+hardly breathe comfortably. "It wouldn't take him long to do what little
+work was necessary, in our shop, which you know my old guardian,
+Colonel Whympers, built for us before we found my father, when he was
+marooned in that valley in South America, a prisoner for many months,
+because the cliffs around prevented him from escaping. And of course
+he'll gallop out here on your saddle horse, Mr. Quackenboss."
+
+"Well, work ain't got any call on either Felix or me until we see all
+that goes on, that's flat," remarked the farmer, with a smile, "and it's
+lucky he done the milkin' already, or else the cows'd have to wait long
+after their usual hour, which is a bad way to treat 'em, you know."
+
+They all went out to the field, even the housewife and little Billie
+wanting to see what a real aeroplane looked like at close quarters. Many
+times had all of them seen the Bird boys, and perhaps Percy Carberry as
+well, soaring aloft as if the upper air currents might be their natural
+heritage; but up to now they had never had the chance to examine one of
+the wonderful machines, and touch the various parts gingerly as though
+afraid of injuring them.
+
+"Beats all what people are a-doing nowadays," ventured the farmer,
+shaking his head with astonishment, almost awe, as he looked the thing
+over. "They ain't even contented to just fly like a red-tailed hawk, or
+an eagle that kin look the sun direct in the eye; but now they got to
+have a contraption that's at home in the air or on the water; a
+hydroplane you called, it didn't you, Andy? And them ere twin pontoons
+underneath, that look kinder like gondolas, as you say, are made of
+aluminum, and kin hold up the whole affair when you light on water. But
+tell me, how in all creation kin you ever mount up agin, once you settle
+there?"
+
+"Why that's the easiest thing of all," replied the young aviator;
+"you've watched a wild duck get up many a time, haven't you, Mr.
+Quackenboss; well, we do just the same, only instead of flapping our
+wings, we start the engine, and skim along the surface for a little
+distance, then elevate the planes, and immediately begin to soar upward.
+And it does the stunt as gracefully as anything you ever saw. Some time
+I hope to give you a chance to see how it works. When we leave here, of
+course we'll use the bicycle wheels you see underneath, and run along
+the ground until going fast enough to soar. But I think I see Frank
+coming, away down the road there."
+
+"That's right," declared the farmer; "I know my Bob as far as I can see
+him, and his gallop in the bargain."
+
+Frank was evidently coming at full speed, and Andy presently got the
+idea in his head that his cousin seemed to be strangely in a hurry for
+him. He wondered whether anything could have happened at home, and if
+Frank would prove to be the bearer of bad news.
+
+The other dashed into the narrow road leading from the pike to the barns
+of the Quackenboss farm. Hitching the horse to a post, he started toward
+the spot in the big field where the two boys and the farmer awaited his
+coming, close beside the stranded aeroplane.
+
+Frank was carrying the little part he had expected to knock together at
+the workshop; but as he drew nearer, his chum could readily see that he
+was considerably excited.
+
+"Is everything all right here, Andy?" he called out, even before
+reaching them.
+
+"Yes," replied the other Bird boy, promptly, "though we did have a call
+from four fellows who had their faces hidden behind handkerchiefs, but
+we fired our guns in the air and nearly frightened them to death. Felix
+grabbed the double-barrel I had, and gave them a last shot when they
+were climbing the fence over there; and we heard some howls too, so I
+guess a few of the Number Eight shot pinked them. But what makes you
+look so bothered, Frank? Has anything happened at home?"
+
+"There sure has," came from Frank, as he joined them, and cast a pleased
+glance over the flying machine that lay upon the grass like a huge bat,
+with wings extended.
+
+"Tell me what it was?" demanded Andy, breathlessly.
+
+"Somebody broke into our hangar and workshop, and knocked things around
+at a great rate," Frank went on to say. "Acted like they might be just
+mad because they didn't find our new machine there, and wanted to show
+their spite. And nobody in your house knew a thing about it till I came
+along, after an early breakfast, meaning to get the piece I'd been
+working on up to eleven last night, when I went home to sleep, and
+locked up the place as usual."
+
+"That's a queer piece of news you're telling me, Frank," said the other,
+looking puzzled, as well he might.
+
+
+
+
+CHAPTER IV
+
+
+THE STARTLING NEWS
+
+"Well," said Frank, with a frown on his face. "It's puzzled me a whole
+lot, let me tell you, Andy. Because, of course, my first thought was
+that it must have been Percy Carberry's work; but now that you tell me
+he was here, and knew we hadn't fetched our hydroplane home, I hardly
+know what to think."
+
+"Did you say you worked till about eleven at the shop?" asked Andy,
+quickly.
+
+"Three minutes after when I quit, locked up, and went home," Frank
+replied.
+
+"That was just about the time they showed up here," the other went on to
+say. "Unless one of us is wrong about the time, they couldn't well be in
+two places at the same minute, now, could they? Seems like it might have
+been some other crowd that broke into our hangar, Frank!"
+
+"But why? Did they want to play fast and loose with our machine, and
+force an entrance just for that purpose? Listen to something I'm going
+to tell you, Andy. I found several things on our work bench where
+somebody had left them, without meaning to do it, I guess. Here's one."
+
+Frank while saying this held something up which he had taken from the
+package he carried under his arm.
+
+"Why, that's a splendid electric torch, looks like to me?" exclaimed
+Andy.
+
+"Just what it is, now," the other agreed.
+
+"And it was forgotten in our shop, was it?" demanded Andy.
+
+"I made out that whoever entered used this first, and then lighted our
+lamp to look around with, putting out the torch, and laying it down.
+When they skipped out, why, they just forgot all about it, also these."
+
+Again did Frank make a dive into his pocket, and dangled something
+before the astonished eyes of his cousin.
+
+"Great Caesar! what d'ye call those things?" gasped Andy, staring as
+though hardly able to believe his eyes.
+
+"Well, as near as I can make out, they're a couple of half masks made
+out of black muslin, and just like a domino worn at a masquerade ball."
+Frank remarked, with positive conviction in his voice and manner.
+
+"Masks?" echoed the other; "and the fellows who broke open our shop wore
+them, did they? Well, the crowd that came out here seemed to be
+satisfied to tie handkerchiefs across their faces, and pull their hats
+down."
+
+"I don't know that they wore them," Frank went on, "but they had the
+things along and laid them down with the lantern, forgetting the whole
+lot when they cleared out. Perhaps your dog got to barking and
+frightened them off before they found a chance to do much damage."
+
+"A regular bullseye electric torch, and black masks like cracksmen
+use--say, tell me, Frank, what's coming over our quiet country up here
+lately? There was the affair over in a neighboring town, when yeggmen
+broke into the bank, and robbed it; and now here you tell me we've had a
+little smash-up on our own account, with the burglars leaving cards
+behind them. But what d'ye think now anybody would want to go poking
+around in our shop for, Frank?"
+
+His cousin was looking very grave.
+
+"Well, you forget that we've been working overtime this winter on
+several little inventions that, if we ever complete them, will make a
+stir in the world of aviation."
+
+"Jupiter, I had let that slip away from me, for a fact, Frank!"
+exclaimed the other, looking rather startled.
+
+"Of course, it sounds pretty big for us to even imagine that any party
+could take enough interest in what the Bird boys are doing to come up
+here, intending to break into the shop, and learn our secrets; but what
+else can we think, tell me that, Andy?"
+
+"But they wouldn't find out much, even if they had six hours to poke
+around our shop in, would they, Frank?"
+
+"I guess you're right, because we've made it a rule to be cautious
+enough to hide our work and cover our tracks as we go along. But let's
+get busy now, and put the plane into shape, so we can slip along home.
+And as we work we can keep on talking as much as we want to," Frank went
+on to say.
+
+The farmer and Felix still loitered around, determined to see the
+wonderful contrivance make a start, and expecting the greatest treat of
+their lives, when that event occurred.
+
+Such experienced workers as the two Bird boys had now become would find
+little or no trouble about carrying out the work they had on hand. Every
+steel wire guy was kept as taut as a fiddle string; and by the time they
+were done handling the aeroplane it would be in apple-pie shape for
+work.
+
+"Did they smash much in the shop, Frank?" Andy asked after they had
+been working some little time, and making fair progress.
+
+"Why, no, it didn't seem to me that they took the time to do great
+damage; and that's why I fancy they were scared off, somehow or other.
+They went in a hurry, or else they would never have forgotten those
+things. And when I looked around I made up my mind that they were just
+mad because they didn't find our machine at home, and so tried to let us
+know that fact."
+
+"Perhaps it was a second detachment of the same crowd that came out
+here?" suggested Andy, speculatively.
+
+"Tell me, what would they be doing with electric torches, and black
+masks? Now, you can see that these have been pretty well used; they're
+not new ones just cut out by pattern at home with mother's scissors.
+These have been made by an experienced operator, and were bought either
+for a mask ball or some other purpose."
+
+"Well, perhaps we'll never know the truth about it," grumbled Andy, who
+never liked anything to puzzle him and would lie awake half the night
+trying to find the answer to a conundrum that had been offered to him by
+a boy friend.
+
+"Oh! yes, I've got a hunch that we will," chirped his cousin, with a
+sublime confidence that quite won Andy's heart; if he could not see any
+good reason for hope himself, the fact that his chum pinned his faith on
+it was enough to bolster up his own courage.
+
+Meanwhile they were both as busy as bees, and the work was approaching
+completion.
+
+"What are you looking up every little while that way for?" Frank asked,
+after noticing that Andy cocked his eye upward several times, and
+appeared to be scanning the heavens in an expectant manner; "the day is
+all right, so far as wind goes, and we ought to get along home without a
+bit of trouble."
+
+"Oh! I wasn't bothering my head about that part of it," the other
+replied, with a scornful smile. "We've been out in all sorts of weather;
+and now that we have a chance to try this new invention of the Wrights',
+that makes it next to impossible to tilt an aeroplane over no matter how
+you move around when up in the air, we can feel safer than ever. Even a
+fool would be kept from meeting with an accident when protected by that
+wonderful balancing bar that responds to the slightest movement of the
+human body."
+
+"Then it was something else you had on your mind, was it, Andy?"
+
+"Well, I was wondering just what took Percy and Sandy out at daybreak
+this morning, that's all," replied the other.
+
+"What's that? Did you see them pass over in their biplane this morning?"
+demanded the other.
+
+"Felix woke me up at dawn to tell me there was a queer chugging
+overhead, that sort of scared him. I jumped up, because of course I knew
+what that must mean. And sure enough I was just in time to see a biplane
+pass over at a good height, and head up the lake. I lost it back of the
+barn, because a flock of crows came flying along, stretching out for a
+mile or two; and among the lot I couldn't make out just what was biplane
+and which was crow. It was pretty high up, too, I thought."
+
+"But you made sure it was Percy's biplane?" asked Frank, interested
+somewhat, for somehow the other rival flier was always doing such bold
+stunts that he could not help feeling as though it might pay to keep
+track of what he was doing, lest their interests clash unexpectedly, in
+midair perhaps.
+
+"I ought to know the way it glides, and the whole general look; and I'd
+be willing to take my affidavy that was the Canvas-back, as he calls
+his biplane."
+
+"And he was in it, of course, with Sandy too?" Frank went on.
+
+"I could just make out that there were two aboard," said Andy, "but
+somehow it seemed to me that Percy had altered his whole way of piloting
+his airship, or else he was drunk, and hardly knew what he was doing."
+
+Frank whistled to indicate his surprise and consternation:
+
+"When it gets as rough as that you can take it from me that Percy's
+mother will hear something simply awful about him before long. He's
+bound to go from bad to worse; and everybody knows what the end of such
+an aviator is going to be."
+
+"But what under the sun could he be off at daylight this morning for?"
+Andy went on to remark, as though that thing had been bothering him ever
+since the moment he lost track of the biplane among the teetering,
+cawing crows.
+
+Frank shrugged his shoulders as he replied:
+
+"Did you ever know any reason for half the things Percy does? He just
+acts from a sudden impulse. Remember all that happened when he followed
+us down there to Columbia in South America, and tried to give us all the
+trouble he could make up. And there have been lots of other times too,
+we can look back at, all of which prove what I am saying that he is
+often like a ship without a rudder. Now, perhaps, he's got the crazy
+notion in his head that we might prosecute him either for what he tried
+to do up here to our hydroplane, or on account of breaking into our
+hangar, and doing a certain amount of damage, if the vandal was Percy
+Carberry."
+
+"That sounds a little reasonable, anyhow, Frank. Queer that I never seem
+to get hold of these things, and they just float along as easy as
+anything to you. But it looks as if we had her all primed up now as
+steady as a church. How about it, Frank?"
+
+For answer the other touched several taut wire guys with a peculiar
+little movement of finger and thumb, and each one responded with a
+musical note that was the sweetest possible sound in the responsive ear
+of the young aviators.
+
+"All done, and let's be off," he said, presently, after the last test
+had been applied.
+
+Accordingly they shook hands with Farmer Quackenboss, his good wife, and
+Felix, in the palm of which latter Andy made sure to leave a greenback
+that made the boy grin broadly.
+
+Three minutes later Frank sang out the word, and both the farmer and
+Felix ran along with the machine for a dozen paces or so, when it left
+them behind, taking on speed, and finally rushing over the ground at a
+tremendous pace.
+
+Uptilting the planes caused it to leave the ground and start to curve
+gracefully upward, as the whizzing propeller did its noisy duty.
+
+They could hear the farmer and his hired hand shouting themselves hoarse
+with delight at having actually witnessed the start of a modern
+aeroplane; but naturally the sound grew fainter and fainter in their
+ears as they left the field and the squatty farmhouse far behind.
+
+Having arisen to the height of several hundred feet, Frank headed toward
+Bloomsbury. Like a true and alert pilot he was watching and listening to
+ascertain how their recent work held; and presently a satisfied
+expression crossing his face announced that he found his faith well
+justified.
+
+They had skimmed along for perhaps a mile or more when Andy made a
+certain discovery that caused him to call out.
+
+"Look along the road below and ahead, Frank," he said, "and you'll see
+something that makes you think of old times, when we hunted, in company
+with Chief Waller, for those men who looted Leffingwell's jewelry
+establishment."
+
+"Why, as sure as you're born, Andy, it does look like the Chief; and
+he's sitting in a vehicle, waving his hat. He seems to be looking up at
+us, and now that I've turned off the motor to glide a little I can hear
+him shouting."
+
+"Frank, do you think he's just saluting us, or does he want us to come
+down?" demanded Andy, in some apprehension.
+
+"Now he's making all sorts of gestures, and honestly I think he means
+that he wants to see us. Had we better drop in that open field just
+alongside the road? Looks good to me for a rise when we want to start
+again."
+
+"Whatever you think best, Frank; I'm always willing to be guided by you.
+Mighty seldom you make a bad mess of it, while I often do. Yes, let's
+drop down, and if the field turns out to be pretty smooth, we'll land."
+
+Accordingly, the hydroplane which was of course now in a condition for
+making a landing with the wheels below the aluminum pontoons, circled
+around, dropping lower and lower, until presently it came to a stop in
+the field close to the fence.
+
+When it landed it was done so beautifully that, as Andy enthusiastically
+said, an egg would hardly have broken had it come between. And there,
+not more than twenty feet away, the man, dressed in a blue uniform and
+wearing a silver shield with the words "Chief of Police" engraved upon
+it, was soothing his horse, which had apparently been badly frightened
+by the swooping down of what seemed to be a great roc, or some other
+species of now extinct gigantic kings of the air.
+
+"What's up, Chief?" asked Frank, as soon as they had reached the road
+together.
+
+"Then you haven't heard the terrible news; they told me you left home to
+come up here about daybreak; and we didn't find it out until an hour
+ago. The bank in Bloomsbury was broken open last night, the safe rifled,
+and the thieves have disappeared in the queerest way ever heard of, for
+they left no trace behind. And when I saw you boys aloft, I was in hopes
+you might have seen something of the bank looters."
+
+
+
+
+CHAPTER V
+
+
+THE EXCITEMENT GROWS
+
+"Well, what d'ye think of that for news, eh, Frank?" burst out Andy, in
+his usual impetuous way, after the Bloomsbury Chief of Police had made
+this startling announcement.
+
+Frank was as a rule much cooler than his cousin. He had undoubtedly been
+equally astounded to hear of the terrible calamity that had befallen the
+banking institution, in which most of the leading citizens of the town
+were financially interested; but he certainly did not show it the same
+way.
+
+His eyebrows went up to indicate astonishment; and a slight frown
+settled on his grave face, as he replied to Andy's question.
+
+"It's a stunner, just as you say, Andy; but I wish the Chief would tell
+us a few more details. I think it's a little queer nobody seemed to have
+any suspicion of this awful business at the time I left home on
+horseback, to ride up to the Quackenboss farm, where you had been
+watching our injured aeroplane all night."
+
+"Well," continued the head of the Bloomsbury police force; "that's
+because the yeggs worked so neatly they never left a bit of mess around
+to arouse suspicion; and the first thing that was known of the looting
+of the bank was when Seth Jarvie, the day watchman, went into the place
+at seven this morning to relieve Cadger, the night man, and found him
+lying there, tied up like a bundle of goods, and nearly dead with fright
+and humiliation."
+
+"Whew!" was the way Andy relieved his pent-up feelings at this point;
+while his cousin went on asking questions.
+
+"Then Cadger must have seen the robbers, if they captured him; how about
+that, Chief?" he demanded, eagerly; for the excitement was beginning to
+take hold of him.
+
+"That's right, he did, and was able to give us more or less
+information," the police officer continued. "Of course as soon as Jarvie
+saw what had happened he knew it was a case for me to handle, and so he
+ran across to Headquarters; and in a jiffy we had thrown a cordon of
+police around the building to keep out the curious citizens who would
+have no business inside, and spoil any trace of the rascals."
+
+"And would you mind telling us what Cadger had to tell, Chief?" asked
+Frank.
+
+"Not at all, because I'm depending on you boys to help run the thieves
+down, if you feel like giving the authorities any assistance," the other
+replied, craftily.
+
+Frank's answer was immediate and to the point.
+
+"Of course we'll do anything that's in our power, Chief. Both our
+fathers are interested in that bank; and besides, the good name of the
+town must suffer if it is wrecked by a wandering band of yeggmen. And we
+can understand why you should want to capture the thieves, Chief;
+because that's a part of your business. Please tell us what the bank
+watchman had to say."
+
+"Then I will, and without any frills, if I can make it that way,"
+returned the other earnestly. "Cadger says he was caught napping, not
+that he was asleep; but never dreaming of any danger, he stepped over to
+the door when he heard a knock and a voice said: 'It's me, Cadger, Mr.
+Hedden, the cashier; I forgot some important papers, and have gotten out
+of bed to come back for them. Let me in without attracting any
+attention, if you can.'"
+
+"What do you think of the smartness of that?" exclaimed Andy. "And so of
+course poor old Cadger, who is as honest as the day is long, never
+suspected any trick, but went and opened the door a crack?"
+
+"Just what he did," returned the Chief, "and as that side of the bank
+was in the shadow he could only see the figure of a man, who slipped in
+alongside him. Before he knew what was happening he was being chocked by
+a pair of strong hands. Cadger started to struggle but another man must
+have joined the first, for he was knocked unconscious by a cruel blow,
+that's left his face all bloody and after that he didn't know a thing
+for an hour or two."
+
+"Whee! you've got me all worked up with your story, Chief," said Andy
+again. "I can just seem to see the whole thing happening. And chances
+are, that when Cadger did come to, he found himself tied up, and unable
+to even whisper?"
+
+"He had hard work to get enough breath, they had fastened the bandage
+across his mouth so tight; but he could see out of one eye. And lying
+there, Cadger watched the two yeggs go through the whole operation of
+getting nitroglycerine planted, and using all sorts of clothes and even
+the rugs off the floor of the president's room to deaden the sound of
+the explosion."
+
+"They were old hands at the business, that's sure," remarked Frank, when
+the officer paused to catch his breath; for he was talking unusually
+fast in his desire to give them all the particulars in as brief a space
+of time as possible.
+
+"Yes, there can be no doubt of that," the Chief went on to say, wagging
+his head wisely; "and they had been able in some way to get on to a lot
+of things that make us wonder like the name of the cashier and the
+night-watchman. Looks mighty much like they must have had a friend
+around Bloomsbury, who put them wise to those facts. Then they seemed to
+have the running of the trains down pat also; for long after they had
+their arrangements made they just sat down and waited until the freight
+going north and passing Bloomsbury at two-eighteen was pounding up-grade
+from Deering's Crossing, and making all manner of noise."
+
+"Oh! to think of the smartness of that, would you?" burst out Andy. "I
+was wondering how they could blow open the safe, and the sound of the
+explosion never even be heard over at Headquarters, only half a block
+away; but now I see how it could be done. Just like a fellow says he can
+pull a hair out of your head, and you not feel it; and he makes out to
+give you a thump on the head with his other hand at the same time, so of
+course you never notice him pulling the hair."
+
+"Just about on the same principle," said the officer, nodding; "for
+when that heavy freight goes pounding past the station, it makes enough
+noise to drown almost any sort of sound. The windows rattle, and we
+always have to stop talking until the caboose gets past. And that was
+the time they chose to explode their juice, with an absolute certainty
+that no policeman's ear would hear a single thing."
+
+"And Cadger saw it all, did he?" asked practical Frank.
+
+"A good lot of it, by twisting his head from time to time," replied
+Chief Waller. "And after the thing had been successfully done, he could
+watch the two thieves gathering the swag together, and putting it in a
+satchel they found in the cashier's room. Then, just at a quarter to
+three they doused the glim, which was only an electric torch one of them
+carried, and skipped out, locking the door on poor Cadger. It was hours
+afterwards when the day watchman came on duty and the discovery
+followed."
+
+Frank and Andy had somehow turned, and exchanged a significant look
+about this time; and the expression of astonishment on the face of the
+latter deepened.
+
+"Did you say an electric torch, Chief?" demanded Frank, immediately.
+
+"Yes, one of the handy kind that are used so commonly now," the other
+replied.
+
+"Tell us, did Cadger say anything about the thieves wearing masks over
+their faces; or did they use handkerchiefs to hide them from him?"
+
+"I didn't mention that matter, but it was just as you say, Frank; both
+men had on masks all the time," answered the police officer.
+
+"Black ones too, I expect?" ventured Andy.
+
+"That's what they were; but see here, are you two just guessing this, or
+do you happen to know something about those men?" asked the other,
+quickly; for he could not help seeing from the manner of the Bird boys
+that they were on some sort of a scent; and he knew from past
+experiences that their sagacity could always be trusted to do the right
+thing.
+
+"Well," Frank went on to say, drily, "while Andy was watching our new
+hydroplane out in the Quackenboss pasture, I worked until eleven o'clock
+in our shop, and then went home. This morning, early, after a bite to
+eat, I hurried over there to do some finishing touches and carry the
+thing out to apply to our broken plane, when to my astonishment I found
+that the shop had been broken into later in the night, as well as our
+hangar, where the aeroplane is usually kept. And here's what I
+discovered lying on the work-bench, where the men had forgotten them."
+
+With these words he held up the flashlight torch, and the twin black
+masks; and they produced an immediate shock upon the Chief of Police.
+
+"And you found those things in your workshop this morning, you say?"
+he cried, reaching out to take hold of the torch, and the bits of black
+muslin.
+
+"Yes, and whoever was there, they must have been mad because they didn't
+find the aeroplane, for they smashed a few things, just for spite, it
+looked like," was what Frank added.
+
+"Then, if it was the same men who robbed the bank they must have known
+about you boys having a brand new machine. And say, that must mean one
+of the robbers was something of a birdman himself; because no greenhorn
+would ever think of making his getaway in an aeroplane. Don't you see
+that's a pretty good clue, Frank? I'll remember that when I'm getting in
+touch with other points, and find out if there's any aviator who's gone
+crooked of late. Yes, that's worth knowing, now; and I'm glad you
+mentioned it to me."
+
+"What description did Cadger give of the men, Chief?" queried Frank.
+
+"Oh! he said one was tall and thin; and the other short and wiry like,
+pretty much like a cat. I rather reckon he'd be the fellow who's been in
+the flying business. Seemed to have a stiff left arm too, like he'd met
+up with some sort of an accident. That might turn out to be a pointer;
+I'll just remember it. It surely was a lucky thing for me I saw you boys
+come sailing along and managed to attract your attention. I begin to
+feel better already. You gave me so much help on that other occasion, it
+just seems as if I had to fall back on you again."
+
+"Better move your horse out of the way, Chief, because there comes a car
+at a licketty-split racing speed. Wonder what the fellows in it are
+thinking about, to take such chances. Why, hello! look there, Frank,
+perhaps you know the one who's at the wheel? Seems to me I've seen him
+before, and that his name is Percy Carberry."
+
+"It is Percy," said Frank, "and alongside him who'd you expect to see
+but his shadow, Sandy Hollingshead? And they look some excited too, as
+though they'd heard about the robbery, and the Carberry family was
+threatened with bankruptcy if the missing funds were not recovered right
+away. There, he sees us, and is pulling up. I reckon he's looking for
+you, Chief."
+
+The car that had been tearing along the pike came to a stop close to
+where the head of the Bloomsbury police force sat in his buggy.
+
+Percy Carberry got out, and Andy could not but notice that he was not
+displaying his accustomed agility on this fine morning; indeed, he made
+a face as though it gave him a stab of pain every time he took a step.
+
+"Hello! Chief Waller!" remarked Percy in his customary patronizing way,
+ignoring the presence of the Bird boys completely and purposely, of
+course; "I've come out after you, to get your assistance in trying to
+find the rascals who broke into my hangar some time last night, and ran
+away with my biplane!"
+
+Upon hearing these astonishing words it was little wonder that Andy and
+Frank once more looked at each other, with the light of understanding
+dawning on their faces.
+
+
+
+
+CHAPTER VI
+
+
+FIGURING IT ALL OUT
+
+"That's a strange story you're telling us, Percy," said the Head of the
+local police force, at which the boy bridled up immediately.
+
+"I don't see what there is so funny about it, Chief!" he exclaimed,
+frowning. "I tell you my hangar was broken open last night, and I'm out
+a biplane that cost me a good round sum. It's up to you to get on the
+track of the same, and recover it. I hereby offer a reward of three
+hundred dollars for the recovery of my machine uninjured, and make it
+five hundred if the thief is captured in the bargain."
+
+When he said this Percy assumed all the airs of a millionaire; but then
+it was well known about Bloomsbury that the Widow Carberry was very
+wealthy; also that her only hopeful could wheedle her in to settling any
+sort of a bill he chose to contract, so that the mention of the sum of
+five hundred dollars was not anything extravagant for Percy.
+
+"Oh! it wasn't that I doubted your word at all, Percy; don't think
+that," Chief Waller hastened to say; for like most men he was ready to
+bow down in front of the golden calf; and more than once Mrs. Carberry
+had been very generous to the force--when her house took fire and came
+near burning, but was saved, thanks to the energetic work of police and
+fire departments; and again, when a hired man tried to carry off some of
+her jewelry, but had been easily caught, and the plunder restored.
+
+"Then what makes you act like that, I'd like to know?" demanded Percy,
+looking very much put out, as though he did not like to be treated with
+suspicion, especially when his old-time rivals, the Bird boys, were
+around.
+
+"Why," the officer went on to say, "when you said that about your
+aeroplane being taken, it struck me all in a heap; because Frank here
+was just telling me that two men broke into his shop last night after
+eleven, and knocked things around, just because they failed to find his
+hydroplane in its bunk as usual. They wanted that machine, and wanted it
+so bad, that, as a last resort, they went over to your place, and
+confiscated your biplane."
+
+It was Percy's turn now to look astonished. He even condescended to
+notice the presence of the two Bird boys, and surveyed them with
+interest.
+
+"Is that a fact, Frank? Did somebody break into your place last night?
+I remember now that I did see you pottering about your craft up there
+somewhere about the Quackenboss place, but I'd forgotten it till the
+Chief mentioned that you didn't have it in the hangar. That's the time
+you were lucky. See what I got for having mine at home all snug and
+nice. It's been hooked clear as anything, and not a trace to tell who
+did the business."
+
+"Hold on there, Percy," said the Chief, with a broad smile, "perhaps it
+isn't such a deep mystery after all."
+
+"Tell me what you mean when you say that," demanded the boy, loftily, as
+though he resented the fact that anything should be kept from him a
+single second.
+
+"Why, Frank and Andy found these things in their shop, left by the two
+men who tried to get their hydroplane; and the chances are ten to one
+the same parties went right straight over to your place and got yours as
+a second choice."
+
+"I don't like the way you speak of my biplane, Chief, which cost ever so
+much more money than the contraption the Bird boys own," Percy remarked,
+sneeringly; "but never mind, tell me what these things stand for. An
+electric torch and--why those things look like black masks. Great
+Caesar! and the Bloomsbury bank was robbed last night, they told me when
+I was rushing around looking for you. See here, do you think the yeggs
+who did that neat job got away with my biplane?"
+
+Percy was getting more excited than ever now. When he did, he seemed to
+just foam a little at the corners of his mouth, his eyes glittered, and
+his face turned red.
+
+"There seems to be no doubt of it," replied the Chief, calmly, and yet
+with a stiffening of his figure, as though conscious of having already
+discovered a most promising clue, that could not but reflect credit on
+his astuteness as an officer of the law.
+
+"They knew all about Frank's machine and mine too, then?" continued
+Percy, still grappling with the tremendous problem.
+
+"Looks that way," the official went on to remark, "and makes me think
+more than ever that they must have a friend right here in Bloomsbury who
+put them wise to lots of things. Time'll tell that. But I don't suppose
+you found anything around your place like Frank did, to tell that some
+strangers had been there while you slept?"
+
+"Not a blessed thing; though, to tell the honest truth, I didn't hang
+around long when I found my biplane was gone. It was the best machine I
+ever owned, and as you know I've had several, all told. And inside of
+three days I expected that the latest model of aluminum pontoons would
+be along, to turn it into a water as well as an air craft. Now chances
+are, I'll never see it again, because, like as not, nobody knows which
+way in creation they went."
+
+"We happen to have a pointer about that same thing," Andy could not help
+saying, though he hardly liked the superior air of the other, not being
+able to overlook such things as easily as his cousin did.
+
+"I hope, then, you'll give it to the Chief, Andy," the Carberry boy
+remarked, for the first time directly speaking to one of the cousins.
+
+"Sure thing. We want to see the rascals copped just as much as anybody
+does. You see, Felix, he's the farm hand up at Mr. Quackenboss' place,
+and me, we thought it good policy to stay around, and keep an eye on our
+machine while it was lying overnight in that meadow. I had had a long
+watch of it, and was taking my turn at sleeping when just at daybreak
+Felix shook me, and said there was a queer noise up aloft that kind of
+scared him, and which he rather believed must come from some sort of
+air craft.
+
+"Oh!" exclaimed Percy, looking intensely interested, of course; "go on,
+please."
+
+"I jumped up, and sure enough I glimpsed a biplane passing over, and
+headed up the lake at a pretty good height, I thought it looked like
+your machine, but as I remarked to Frank later on, whoever steered it
+had a different way about him from your method. While I was wondering
+what took you out so early, and I could see there were two in the
+machine, a big flock of crows passed over, and I lost track of it.
+
+"So, you see, Percy," broke in the eager Chief just at that point,
+"we've got a pretty good clue already about the direction the rascals
+took, who broke into the safe of the bank, and carried off a bagful of
+money, and valuable papers; and then followed that up by cribbing your
+biplane. It was north they went, up the lake, in fact; and that's the
+quarter we'll have to look for them. But let me tell you it's putting it
+pretty hard over on a police officer to make him try to track a stolen
+flying machine."
+
+"But you can get in touch with every town to the north, and pick up
+pointers here and there!" Percy declared, excitedly. "Get back to town
+as fast as you can, Chief, and with a couple of your men I'll carry you
+wherever you want to go. In the meanwhile, you can leave orders for your
+men to do the wiring business; and whenever we strike a town we can ring
+up Headquarters over the 'phone, and learn what news they've managed to
+pick up."
+
+Percy seemed to think that all he had to do was to tell the Chief what
+he wanted; but then his plan of campaign was really a good one, and the
+police officer was wise enough not to quarrel with his bread and butter;
+for the Widow Carberry was a large property owner in Bloomsbury.
+
+"You just take the words out of my mouth seems like it," he remarked;
+"and that is the best plan we could carry out. I was just going to
+suggest to Frank and Andy here, that if they felt like taking a little
+spin off to the northward this fine morning, and discovered anything
+suspicious, they could get word to us, perhaps through the Bloomsbury
+Central, for we'll be apt to keep in touch with home."
+
+Percy did not know whether to look pleased at this suggestion or not. It
+would be just like the everlasting luck of the Bird boys to make another
+remarkable success out of this thing, for they seemed to have a failing
+that way, while all the hard fortune came in his direction. That would
+give him a pain to be sure, for he was horribly envious of their local
+fame as successful aviators; but at the same time he hated to lose that
+beautiful biplane, which he had not owned very long, and which had taken
+his heart by storm.
+
+So Percy finally compromised, as he frequently did. He even forced a
+grim smile to appear upon his face, though it did not deceive Frank in
+the least; and as for Andy, he never took the least stock in Percy
+Carberry's honesty. In his mind there was always a deep meaning
+underneath every action of the other.
+
+"Why, sure I hope Frank will discover the thieves, and recover the stuff
+they've grabbed from the bank; also that he'll have the good luck to get
+back my biplane without its being badly wrecked. That reward is worth
+trying for, and I don't go back on my word."
+
+All the same he knew very well that neither of the Bird boys could be
+forced to ever accept one penny from his hand, no matter what good Dame
+Fortune allowed them to do for him.
+
+Andy was watching keenly when the Carberry boy walked back to his
+machine, and climbed into the steering seat. Frank, happening to look
+that way, saw his cousin's face lighted up as if in glee: and he even
+heard him chuckle. Perhaps Percy may have caught the same sound, for he
+turned his head after dropping down into his seat, and scowled darkly at
+Andy. There is nothing like a guilty conscience to bring about a
+self-betrayal; and somehow Percy seemed to know what the Bird boy was
+thinking about just then.
+
+At any rate, he was an adept at the pilot wheel of a car, though
+inclined to be a reckless driver; just as he was also a daring air
+voyager, taking desperate chances that promised to bring him to grief
+one of these days.
+
+Backing the car swiftly around, he sped away. Sandy Hollingshead, who
+had not once moved from his seat, or uttered a single word all the time,
+turned his head to look back; and Andy thought he too scowled darkly, as
+though stirred by unpleasant thoughts; but in another minute they had
+vanished around the bend far along the pike, and the Chief alone was
+seen, whipping up his nag, in the endeavor to get back as speedily as
+possible to Headquarters.
+
+"Well, of all things, don't this just take the cake?" remarked Andy,
+when he and his cousin once more found themselves alone beside the
+motionless aeroplane, that nestled like a great bird on the grass close
+to the road.
+
+"It certainly looks as though we might be in for a little more
+excitement," replied Frank; "but what seemed to make you chuckle so
+much, Andy? You must have noticed something that escaped my attention,
+because I was busy thinking of other things. Suppose you open up, and
+tell me?"
+
+"I was tickled half to death to see how Percy tried to walk, as if
+nothing was the matter with him, when all the time he couldn't keep from
+limping; because, don't you see, one or several of those bird-shot Felix
+scattered around last night, must have stung him about the legs. That's
+why he scowled so at me, Frank!"
+
+
+
+
+CHAPTER VII
+
+
+THE AIR SCOUTS
+
+Frank laughed a little, himself, when he heard his cousin say this.
+
+"I give you credit for getting one on me there, Andy," he declared.
+
+"Then you believe I hit the right nail on the head, do you, Frank?"
+
+"Well," remarked the other, "come to think of it, Percy did have a
+little limp; and I guess he tried to hide it the best he could, for I
+remember seeing him wince several times. But how about Sandy, who never
+tried to get out of the car once, and didn't even open his lips to say a
+single word?"
+
+"I bet you he got a double dose, and is pretty sore this morning." Andy
+went on. "You seemed to think it was kind of hard lines for Felix to
+give 'em a load when they were pretty far off, and just climbing over
+that fence; but it tickles me every time I think of it. Seemed like the
+whole bunch just fell over after he shot; and like as not each fellow
+got his share of the Number Eights somewhere in his legs. But how about
+this job the Chief asked us to engineer, Frank? Are we going to start
+off on that little spin up the lake; and d'ye guess we could get a
+pointer about where the two thieves have gone?"
+
+"We might try, anyhow; no harm in that," was his cousin's reply, as he
+turned once more toward the hydroplane that lay near by.
+
+"I remember we had great luck that other time, when we discovered that
+the men who broke into Leffingwell's place were hiding in that old cabin
+up in the woods. Perhaps the same story might be repeated, who knows?
+They call it the Bird boys' luck, Frank; but then, we work for all we
+get, and ought to have a little credit when we win out. If we made a bad
+job of things, the same people would be quick to say we didn't know our
+business. Shall we go back to the shop first?"
+
+"That would be the only way," replied Frank. "If we're going to take on
+this dangerous job of looking up yeggmen who have broken into a bank,
+and looted it, why, it seems to me we ought to make a little
+preparation. Of course, about all we expect to do is to scout around,
+and see if we can pick up any information with the aid of our marine
+glasses. It's hardly to be expected that two boys would take the chance
+of trying to nab a couple of reckless thieves, who must be armed and
+desperate."
+
+"But if the opening came, Frank, we wouldn't let it slip by, would we?"
+asked Andy, always willing to go to the limit, when temptation beckoned.
+
+"Perhaps not," answered the other, smilingly; "but there's no use
+crossing a bridge till we come to it, so we won't bother any more about
+that. Get aboard, Andy, and we'll head for home again."
+
+"Just think of all that's happened since we had that little accident
+yesterday afternoon, up near the Quackenboss place?" Andy went on to
+say, as he complied with his cousin's request, and settled himself in
+his seat, leaving the piloting of the machine to Frank.
+
+"There has been quite a little run of excitement, that's a fact," mused
+the other; "first the accident, and our great good luck in making a
+landing without breaking a thing, including our precious necks."
+
+"Then the discovery of Percy and Sandy looking at the hydroplane lying
+there, and hurrying away as if they had already laid a plan to come back
+and pay a night visit, if they failed to see us get home by daylight,"
+Andy went on to add.
+
+"Events followed thick and fast after that, Andy--the coming of the
+four fellows, with their faces hidden; their repulse at the hands of
+yourself and the friendly Felix; then the robbery of the bank; the
+breaking into our shop by men who left their cards behind in the shape
+of these burglar tools; the meeting of the Chief on the road, and the
+news he gave us; and last of all the coming of Percy with the startling
+news that his biplane had been stolen!"
+
+"Yes, but don't forget my seeing it sailing over just at early dawn,"
+remarked the other, as Frank stooped forward for a last look around,
+before starting up the powerful little Kinkaid engine. "Because that
+promises to play quite a figure in the pursuit of the smart thieves;
+though they may be fifty miles away from here by now, if they know how
+to handle that fine biplane right."
+
+"Hold tight; we're off!" warned Frank, as he applied the power; for the
+new engine was of course a self-starter, and could be operated from his
+seat with almost as much ease as might be shown in using electricity,
+and pressing the button.
+
+The hydroplane ran easily along the ground, for the bicycle wheels were
+always kept in first class condition; and as the speed kept on
+increasing Frank soon uptilted the plane, and like a great bird rising
+from the ground, with a graceful sweep the flying machine took to the
+air.
+
+Long practice had made the Bird boys familiar with every movement
+connected with the actions of an aeroplane, but at the same time they
+tried to be always on their guard against being incautious. That is the
+trouble with most aviators; they grow so familiar with danger that they
+forget the terrible risk that always hangs over the head of every one
+who soars aloft in his frail airship; and then, when finally something
+happens after they have become too reckless, they never get another
+chance.
+
+Sweeping along not more than three hundred feet above the ground, the
+boys were home in almost no time. They could see the car containing
+Percy Carberry, and his crony, Sandy, just vanishing among the houses of
+Bloomsbury; and the Chief, about half-way there, waved his hat at them
+as they sped past him.
+
+Then the aeroplane dropped lightly down close to the hangar back of the
+Bird home, where Andy and his father, the professor, lived, together
+with old Colonel Whympers, the veteran who used crutches or a cane on
+account of his rheumatism, brought on, he always declared, not by age,
+oh! no, but the wounds he received many years ago, when he was fighting
+for his country in the great civil war.
+
+He was sitting there on a pile of lumber waiting for them, a quaint old
+fellow, who was greatly beloved by both cousins; and who believed firmly
+that some fine day Andy Bird was bound to even eclipse the fame which
+his father had gained in the field of science and aviation.
+
+It happened that the professor was away at the time delivering a series
+of lectures before some body of scientists in a distant city. And
+whenever the boys were in their shop the old veteran was in the habit of
+coming around, to see what new and wonderful things engaged their
+attention, as well as chatting with them. And he was as welcome as the
+sun in May.
+
+Of course, just then he was bristling with questions as a hedgehog would
+be with sharp-pointed quills. And knowing the Colonel of old, Frank and
+Andy lost no time in telling him all that had happened to them, from the
+time of their little accident, down to when they heard the latest news
+from Percy Carberry.
+
+"And I warrant now," remarked Colonel Whimpers, as soon as the tale was
+finished, "that you two boys get the first clew to where the robbers
+are hiding. Didn't you beat the wonderful Chief out before, and doesn't
+history have a habit of repeating itself? Oh; if only I was ten years
+younger, how I'd love to be along, when all these glorious things are
+happening. I hate to think I'm put by on the shelf and never can be any
+good again."
+
+That was the old man's only fault; he was forever complaining because
+his day for indulging in exciting scenes had passed; but any one who
+knew the half that he had passed through, would think the colonel had no
+reason to say anything; and that it was only right that someone else had
+a show.
+
+They soon soothed him, however, and long practice had made Andy
+particularly apt at this sort of thing.
+
+"Here come Elephant and Larry, on the run," remarked Frank, a little
+while later; "I wonder if they saw us come home, and whether they can
+have picked up any additional news connected with the bank robbery, that
+we ought know."
+
+"Well, it might pay us to hold up a little, and see," added Andy.
+
+"Yes, since we're in no great hurry, and the day is long," Frank
+remarked.
+
+The two boys came up panting for breath. Larry had evidently set the
+pace, and it was a matter of the smaller lad keeping with him, or else
+being left behind, something Elephant never liked to have happen; so
+that he was unable to say even a single word for a full minute after
+arriving alongside the hangar.
+
+"Tell us, have they learned anything new since the Chief started off?"
+asked Frank, as usual right to the point; and in this way cutting off
+the myriad of questions which he knew both the newcomers were primed to
+ask.
+
+"Why, yes," gasped Larry, while Elephant nodded his head as if to say he
+agreed to all that was said, "after Percy came bustling around, asking
+for the Chief, and telling how somebody had busted into his place, and
+run off with his biplane in the night, they got to talking it over, and
+wondering if it could have been the robbers, and if one of 'em knew how
+to handle such things. So they called up the city, and asked questions.
+In that way they learned that there was a yegg who had been suspected of
+having been connected with several other jobs, though they never could
+just put the kibosh on him, and his name is Casper Blue, and one time he
+used to be an actor, and then became a pretty well-known flier, but in
+an accident he broke his arm, and had to give up his business. He was
+always a crooked sort of feller, and after that just boozed around,
+joined in with hobo gangs, and they believe touched up a few jobs
+himself. There, that's all we know; and now, what you been doing?"
+
+"Too long a story to tell just now," declared Frank. "The colonel knows,
+and perhaps he'll amuse you after we've gone."
+
+"Oh! say, are you meanin' to take after them fellers that busted the
+bank safe, and then got away with Percy's biplane?" asked Elephant
+eagerly; "don't I wish though I could just hang on behind, and be in the
+swim for once. You two seem to have about all the fun there is going,
+hang the luck, say I?"
+
+"Well, you'd better not try it, that's what!" said Andy, shaking his
+head threateningly at the bare suggestion of having Elephant aboard when
+they made a start.
+
+"I think we've got everything now, Andy," remarked Frank, anxious to be
+off.
+
+"Hope you're taking guns along, because if you do run across them hobo
+fellers you'll be apt to need them right bad," Larry went on to say,
+also looking downcast at having to miss all the sport simply because
+Nature had never intended him for an aviator, as he was inclined to get
+dizzy when looking down from any height.
+
+"Oh! Frank's provided for that, and besides, we don't really expect to
+round the thieves up, just find out if they've dropped down anywhere
+inside of thirty miles to the north of Bloomsbury. Shall I get aboard,
+Frank?"
+
+"Yes; and after we're off, Larry, will you and Elephant do me the favor
+to step around to my house, and tell my folks that the Bird boys have
+hired out as scouts to Chief Waller? Tell dad that we'll be mighty
+careful, and for mother not to worry about us. You know I always call
+Aunt Laura mother, because she's been that ever since my own died years
+ago. Will you do that, boys?" and Frank sitting there ready to start,
+turned a smiling face upon his two friends. Even as they promised, the
+aeroplane started off, and a minute later soared up in the air, like a
+bird rejoicing at its freedom for leaving the earth behind.
+
+
+
+
+CHAPTER VIII
+
+
+JUST BELOW THE CLOUDS
+
+"Good luck to you, boys!" came floating up from the ground, above the
+buzzing of the busy little Kinkaid motor; and looking down, they could
+see Larry, Elephant, yes, and the old veteran also, carrying on
+excitedly, as they swung their hats around.
+
+"Who're you waving your handkerchief to, Frank; does your best girl keep
+her eyes on the skies all the day long, looking to see you come around?"
+demanded Andy, humorously.
+
+"Yes, that's my best girl, as sure as you live; and she's standing there
+on the porch of our house right now, waving to me--Aunt Laura, who
+thinks just as much of me as any mother could. But Andy, neither of us
+said anything when Larry told about that hobo aviator named Casper Blue;
+yet he answered the description the bank watchman gave of the smaller
+man who had a stiff arm."
+
+"Oh, I noticed that, all right, even if I didn't look your way,"
+returned Andy, promptly. "It sort of clinched the nail we drove through
+didn't it, Frank?"
+
+"Seems like it," the other went on to remark. "And the chances are ten
+to one, we've got the story down fine right now, know who one of the
+robbers was, why they wanted to steal an aeroplane to make their
+get-away in, and all that. But there are a few things we don't know,
+that'd throw a little more light on the affair."
+
+"As what?" queried his cousin.
+
+"Well, for one thing, the Chief seemed to think the thieves might have
+had inside information, they seemed to know so much about things
+connected with the bank, our having an aeroplane, where we lived, what
+our habits were, and then about Percy's biplane in the bargain. Now,
+that's something serious; if there's a man in Bloomsbury who's in league
+with such rascals he'll be apt to help them out again later on if they
+get away with this job; and he ought to be found out."
+
+"Whew! looks like we've got a big job on our hands if we hope to do all
+that sort of thing," commented Andy, with a whistle to indicate his
+feelings.
+
+"Nobody said we even think of trying," laughed Frank, as he stopped
+mounting upward in spirals, and headed away toward the north.
+
+It was a glorious view that they had now spread out beneath and around
+them. Neither of the Bird boys ever tired of such wonderful sights; and
+although by now it had become an old story, they enjoyed it as much as
+ever, even if their former sensation of awe had given way to one of
+familiarity.
+
+They could see the entire outlines of beautiful Lake Sunrise, with its
+many coves, and points jutting out, the water glistening in the
+sunlight, as the morning breeze fanned it gently.
+
+Why, yes, there was the little lake steamboat called the Mermaid,
+passing along the northern border of the lake, on the way between the
+town of Cranford, on the shore opposite Bloomsbury, and headed toward a
+small lumbering camp far up the left bank, possibly to deliver supplies,
+after which she would point her nose down toward the home town, which
+was of more importance than any other station on Lake Sunrise.
+
+The boys did look back, dear though the scenes around home must ever be
+for them. It was characteristic of these lads that once they put their
+shoulder to the wheel, or in other words, their hand to the plow, they
+would not allow themselves to be discouraged by thoughts of the home
+ties. That accounted for much of the success that had been their portion
+in the past. They could for the time being forget that there was any
+such place as home; and in this way they avoided the weakness that such
+thoughts are apt to bring along in their train.
+
+Forward their way lay, toward those forbidding wilds far to the north,
+where few towns could be found, and pretty much all the country was a
+vast wilderness, filled with picturesque forests, wild swamps, and
+rugged hills.
+
+It was just the country where desperate law breakers would choose as a
+hiding-place, after they had committed some crime, and expected a warm
+pursuit. Ordinary methods would never find them, save through a mere
+chance; but when one can copy the eagle, and mount to dizzy heights,
+with a pair of powerful glasses he can see almost everything that is
+going on for miles and miles around, provided he has a skilled companion
+along to manage the aeroplane or balloon.
+
+And that is destined to be the greatest value of these winged messengers
+in future years, since it has been proven that they are not so very
+dangerous after all in the line of dropping explosives upon battleships
+or fortified places.
+
+"Somewhere up yonder, Frank, they are probably hiding, and feeling
+perfectly safe from pursuit," ventured Andy, who was sweeping the marine
+glasses around and examining the country ahead with more than common
+interest.
+
+"Look how Old Thunder-top stands out today!" remarked Frank, turning for
+just an instant to glance upward toward the left, where the high
+mountain towered, its heavily wooded sides looking as gloomy as ever,
+and the white cliffs that made the summit inaccessible to human feet,
+appearing almost dazzling in the glittering light of the undimmed
+morning sun.
+
+"And say, there's our old friends, the eagles that had a nest up there,
+and gave me such a warm time when we first reached the top." Andy cried,
+as he focused his glasses on a sweeping pair of huge birds that were
+heading their way, as if meaning to investigate, and find out what
+manner of rival this could be, invading their native element.
+
+"They know too much to bother with an aeroplane by now!" declared Frank,
+laughing again. "Why I'm thinking those birds have hardly grown new
+feathers in place of the lot they lost that time they fought us so
+savagely."
+
+The memory appeared to amuse his cousin also, for he could be heard
+laughing heartily, even above the purr of the now steadily going motor
+that sent the propellers whizzing around so rapidly; for there was one
+fore and aft, as is the case with all biplanes, the engine being behind
+the pilot and his companion.
+
+"Tell me if you can remember, was that other aeroplane headed straight
+up the lake the last you saw it in the early morning light?" Frank
+asked.
+
+"That's right, Frank; but then I couldn't say just how long they kept
+along that same course. When those hundreds of old crows came sailing
+along on the wind, cawing to beat the band, and going every-which-way, I
+lost sight of the biplane. After that it would have to be just guess
+work."
+
+"But we've got a good pointer to start with," insisted Frank. "They
+wouldn't be so apt to head toward the south, east or west, because in
+those directions there are plenty of towns and villages, and these could
+report seeing a strange biplane passing over, so giving the police a
+clue. No, chances are ten to one they kept right on toward the north.
+And there's where we've got to do all our searching today. We can just
+comb the whole district over, and anything that looks like the stolen
+aeroplane is sure to catch our attention from this height, don't you
+think so, Andy?"
+
+"I reckon it will, Frank; but the only thing bothers me is that things
+may have worked all right with the rascals, and by now they're away off,
+so far distant that we'll never in the wide world get in touch with
+them, the more the pity."
+
+"Well, it's never been a habit of ours to own up beaten till we've done
+everything under the sun to win out. And Andy, we've only started as
+yet. The field is before us, you know, with a whole day's supply of gas
+to push us on, if we want to keep going. So I'm not asking any favors,
+and expect to do just my level best to find out where the bank robbers
+have gone."
+
+"And if we hunt around a whole lot without getting tabs on the pair,
+why, we can drop down somewhere in a town, and get in touch with
+Bloomsbury Headquarters. The Chief as much as promised that he'd leave
+word there to put us wise to anything that had been learned by way of
+the telephone, from other places. And given a clue in that way, we might
+take a fresh spurt, you know."
+
+"Just so, Andy," agreed the other, bending his head to watch how some
+part of the machinery was doing its duty; for that is always the weak
+link in modern aviation, nearly everything depending on the engine
+fulfilling its part perfectly.
+
+Andy continued to make use of the pair of glasses that magnified objects
+in the far distance so wonderfully that a man could have been recognized
+easily a mile away, and perhaps much further, if the air were real
+clear.
+
+Now and then he turned them to the right. The beautiful lake always
+attracted him very much like a magnet would, whenever he had a chance to
+look out over its glistening bosom.
+
+And there was the little steamer, just as Frank had said; why, he could
+even distinguish Todd Pemberton up in the pilothouse, grasping his wheel
+and guiding his charge among the shoals that were charted in the
+northern end of the lake as dangerous, that is, for green hands at the
+tiller or wheel of a boat propelled by sails, steam or gasolene.
+
+They were moving in a line that would carry them up along the shore, and
+consequently every minute they drew nearer the small lake steamer that
+was heading toward them.
+
+Passengers could be seen on its deck, and possibly every eye was glued
+just at that particular moment on the aeroplane that was buzzing go
+steadily northward; perhaps it might have been the first time some of
+these people had ever seen such an interesting object; but in the region
+around Bloomsbury it was by now a common sight, with such enterprising
+young air pilots as the Bird boys and Percy Carberry in the field almost
+every decent day.
+
+All at once Frank was heard to utter an exclamation.
+
+"Turn your glasses straight ahead, and see what that can be fluttering
+among the bushes at Norton's Point, Andy!" he called out hastily.
+
+When the other had swung around, and covered the region spoken of, he
+quickly gave the desired information.
+
+"Somebody seems to be shaking a handkerchief or something else white,"
+he observed. "And it don't look like just waving at the steamer either,
+for they do it after a system, as we would signal with wigwag flags.
+There, I counted seven times he did it; then comes a halt, and one, two,
+three times, another halt; and once more he starts in, this time three,
+four, five, and then stops. Now, what do you suppose the fellow means by
+that, and who can he be waving to, Frank?"
+
+"You'd expect it might be some one out on the lake; can you see any
+small boat in sight, Andy; or any one waving back from another point?"
+
+"Not a thing, as far as I can see," replied the boy with the marine
+glasses.
+
+"Suppose you try the steamer, then," suggested Frank, meaningly.
+
+Immediately Andy gave an exclamation of astonishment.
+
+"I see a signal moving, Frank, and it seems to be copying the one on
+shore," he hastened to remark, excitedly.
+
+"Where does it come from, the passengers that I saw pushing up against
+the rail, and staring at us; are any of them interested, do you think?"
+continued Frank, who just then could not turn his head to look, but must
+depend on his chum.
+
+"Well, no," answered Andy, "it seems to come from the pilothouse, and
+must be Todd Pemberton, himself."
+
+
+
+
+CHAPTER IX
+
+
+THE PILOT OF THE MERMAID
+
+"So, it's Todd Pemberton, is it?" remarked Frank, "I think it'll pay us
+to slow down a little, and look into this white rag-waving business."
+
+"Goodness gracious! you can't be thinking that Todd is in touch with the
+bank robbers, can you, Frank?" Andy exclaimed, astounded, apparently, at
+the very thought of such a thing.
+
+"Oh! I'm not up to that point of saying anything--yet. But all the same
+it's what I call interesting, you know," the other replied; and from
+this Andy could easily guess that while Frank might have notions about
+the matter, he did not care to commit himself so early in the game.
+
+"Yes, that's so," Andy replied, still having his eyes glued to the
+binoculars.
+
+"What's doing now?" continued Frank.
+
+"Nothing that I c'n see," replied the other.
+
+"No more white handkerchiefs waving around the point, eh, Andy?"
+
+"Not a blessed thing; and Todd's quit too. Guess they've come to some
+sort of an understanding. Wish I knew what seven, three, five meant;
+something pretty interesting, I'll be bound." Andy went on to mutter,
+half to himself.
+
+"Well, we can only guess, and that's the extent of it," Frank was
+saying, in a rather serious tone, as though he believed there might be
+more in connection with the little affair than a mere exchange of
+civilities.
+
+"How about Todd Pemberton, Frank?" asked the boy with the glasses.
+
+"Well, you know him as well as I do, perhaps better," returned his
+cousin.
+
+"I mean, wasn't there once something against him? I know, Frank, that my
+guardian signed a paper about getting Todd his position with the
+steamboat company this last spring; they always get him to sign
+everything going, he's so good-natured and what you call an Easy Mark."
+
+"Yes, they came to my father too, and he put his name down, I remember.
+As near as I can say, it was a petition to ask the company to give Todd
+the position of pilot; and stated the belief of all those who signed
+that he would make good. He used to be a pilot on Lake Sunrise, and
+before that on one of the Great Lakes."
+
+"But, Frank, why the petition, if he was able to fill the place you'd
+think all he had to do was to make application, and then jump in?"
+
+"Well, it seemed to be pretty generally known about Bloomsbury that Todd
+had not always been as straight as he is today; and lots of people
+believed he would never hold his place a week; but he's had it all
+summer now, and seems to be giving satisfaction, all right," Frank went
+on to say.
+
+"But there was a past, you mean; Todd had gone the pace, and used to
+drink and gamble, I suppose. Perhaps, now, he even used to herd with a
+tough set. How about that, Frank?"
+
+"It's so all right. Todd got down pretty low, and was even a hobo, I
+heard, before he took a brace, and came back to Bloomsbury to make a man
+of himself again."
+
+"Gee! I'm real sorry to hear that," Andy muttered.
+
+"What? That he reformed?" demanded the cousin, in pretended surprise.
+
+"Shucks! no; but about his having been a tramp; because, don't you see,
+Frank, it makes things look black for Todd. Remember, don't you, about
+what the Chief said when he spoke of the yeggs knowing so much about
+things, that he thought they must have had inside information; and that
+somebody familiar with Bloomsbury ways helped them figure it all out.
+Looks bad for Todd, that's what, Frank."
+
+To hear Andy talk you would think that the party in question must have
+been a personal friend, at least, when, in truth, he only knew Todd
+Pemberton to speak to, as he did a thousand other people in and around
+the home town.
+
+"By that you mean you're afraid he's fallen in with some old companions
+in crime and been tempted, or forced to join them in this raid on the
+bank?" was the way Frank put the matter direct.
+
+"You've covered what I do believe, as sure as my name's Andy Bird."
+
+"Well, let me say that I think the same way you do," Frank went on to
+remark.
+
+"Good!" cried Andy, in a delighted tone. "Sometimes we agree, and again
+we have different minds; but in this case it looks like we might be on
+the same raft."
+
+"Take another good squint at the point, Andy, and see if you can pick up
+that man again, the fellow who was doing all that tall Wigwagging."
+
+"I'm looking, Frank."
+
+"What d'ye see there now?" the other continued.
+
+"Nothing--that is, there are stones, and moss, and trees, and perhaps
+birds flying around this way and that; but never the first sign of a
+human being can I discover anywhere, Frank."
+
+"Still, we know there's one man there at least, perhaps a pair of them
+hiding somewhere around that desolate place. Why, Norton's Point is, I
+guess, about the meanest and loneliest place of all the Disston Swamp
+lumber company. Nobody hardly ever goes there except to shoot snipe and
+woodcock in the fall, and yet we happen to know there's one person
+hiding out there, and that he knows Todd Pemberton, for they've been
+exchanging signals through the wigwag code."
+
+"Looks suspicious, Frank, don't you think?"
+
+"Looks like it might pay to investigate a little closer, Andy."
+
+They were by this time passing over the identical strip of country where
+Andy had watched the signal waving. By looking almost directly down, he
+could see between the tall trees as only an aviator ever has a chance of
+doing.
+
+"You know what I'm hoping to discover, Frank?" he remarked as he
+continued to scan every part that was at all exposed by openings among
+the trees.
+
+"Percy's lost biplane, I take it," came the prompt reply.
+
+"Yes, because they couldn't very well have landed without a certain
+amount of open space. We know how hard it is to drop into a hole, and
+worse still to climb up out of one. Didn't we have the toughest of times
+down there in that South American forest finding open spots where we
+could land with some chance of ever getting out again, without cutting
+trees down that were as big around as a young house?"
+
+"But I don't hear you shouting out that you've made any sort of
+discovery, up to now, Andy?"
+
+"Well, no, for a fact I haven't. But Frank, I wish you could take the
+glass and let me hold the wheel for a minute."
+
+"You can tell me just as well, I think," replied the other.
+
+"It's about the sandy beach in front of the point," remarked Andy.
+
+"What ails it then?" Frank inquired, seeing his cousin hesitate.
+
+"Why," Andy went on to say, "you know how powerful this glass is, and
+how it shows up the smallest of things when the sun is just right? It's
+doing that now. I can look down on the sand spit at the point; and for a
+lonely spot where hardly a man ever comes from November to June, it
+looks pretty well trampled up to me."
+
+"Trampled by men or animals?" the pilot inquired.
+
+"I think by two-legged animals," answered the one who held the powerful
+lenses to his young eyes. "And it struck me that perhaps the biplane
+came down right there early this morning. It was headed this way when I
+saw it, and not so very high up; though that flock of crazy crows
+knocked me out of watching it for some times."
+
+"Do you mean it fell there; that they had an accident of some kind,
+Andy?"
+
+"Might be that; and then, again, perhaps they dropped down on purpose;
+p'raps they mean to have another warm session around Bloomsbury before
+skipping out of this section for good. With the aeroplane to make a
+quick get-away, they might think of some rich haul they want to gather
+in. Am I away off in my guess, Frank, or do you kind of lean the same
+way?"
+
+"I think you are getting pretty close to the truth, Andy, and that's a
+fact," replied the other. "But it would clinch it if you could only
+glimpse the biplane hidden away somewhere down there under the brush or
+the trees."
+
+"That's what I've been hoping for," returned Andy, a little fretfully,
+"but so far without meeting any success that you could notice. But what
+ought we to do about it, Frank?"
+
+"Go on, and take a wide sweep around," came the steady reply. "Perhaps
+we might run across another leading clue, and then this one would look
+foolish. We'd be sorry then, that we thought so bad of Todd. Perhaps,
+after all, he was only making signals to one of the men connected with
+the logging camp, up on the Point for something or other."
+
+He allowed the motor to work at the reduced speed that it had been
+carrying on ever since quitting the home field, where the workshop and
+the hangar stood. Andy still continued to use the glasses, as though he
+had not quite given up all hope of making some sort of discovery.
+
+Once, however, they had left the northern end of the lovely lake behind
+them for good, and only the forest lay below, Frank quickened matters
+somewhat. Truth to tell, he hardly knew what to think, and whether what
+they had witnessed could really have any bearing on the solution of the
+puzzle or not.
+
+Certainly if the hunt was only kept up in automobiles, that required
+fairly decent roads to allow of their getting along, there was not much
+chance of the authorities ever discovering the concealed hobo thieves;
+for they could not get within a mile of the shore up there at Norton's
+Point by such methods. The only way it could be reached was by boat; or
+possibly through the means of an aeroplane, such as the Bird boys were
+now using. Few places but could be spied upon, when one had the means
+for passing over the most inaccessible thickets and rocky hills.
+
+After a time they had gone many miles. Occasionally a small hamlet was
+seen below; and then would come once more the woods that extended over
+such a large space of territory in this part of the country. This was
+generally because of the swampy nature of the ground, which prevented
+farming operations being carried on, while the difficulty of getting the
+logs out of the bogs had deterred lumbering thus far.
+
+Andy had done his part of the work faithfully. He had scoured the
+territory over which they passed, and never did a break occur, however
+small, but he clapped his eyes upon it, and examined the open space
+thoroughly.
+
+"There's Rockford ahead, and we've passed over the whole stretch of
+swamp and forest. Suppose, now, we dropped down on the commons, and get
+Bloomsbury on the long distance phone; perhaps they might have some news
+they could give us," and as Andy at once agreed to the proposal, for he
+was thirsty anyhow, and wanted a drink of soda water the worst kind,
+Frank began to descend gracefully.
+
+They had about half the population of the place gaping at them as they
+finally landed on the big green. Frank asked his cousin to stay by the
+machine while he sought police headquarters, and asked to get in touch
+with the home town.
+
+He had no sooner made the connection, and heard some one answer him
+after he told who he was, when there was sent along the wire some
+information that rather gave Frank a shock, because of its nature, and
+the fact that it seemed to fully dispose of the theory he and his cousin
+had already formed.
+
+
+
+
+CHAPTER X
+
+
+HEARD OVER THE WIRE
+
+Luckily the center of interest remained around the odd looking aeroplane
+with the metal pontoons underneath its body, so that Frank was allowed
+to walk away almost unnoticed, when he had secured the important
+information he inquired for, and which was leading him to the drug store
+nearest the town green.
+
+True, an aviator had landed in Rockford on one or two occasions, for
+some reason or other, in times past. Since the Bird boys could not
+remember having done so, possibly it may have been Percy Carberry,
+anxious to enjoy the stares of the good people, and pose as a great
+fellow.
+
+But this was a type of air machine with which none of them were
+familiar; and as so much space was being taken up even in the local
+papers with the accounts of the wonderful doings of daring navigators of
+the upper currents, it was only natural that some bright boy should
+speedily guess what manner of craft the chance visitor to Rockford must
+be.
+
+"Hey! that's a hyderplane, mister, ain't it?" demanded one sharp-eyed
+chap, after he had glimpsed the construction of the aluminum pontoons
+that were just kept from contact with the ground by the bicycle wheels.
+
+"Have you ever seen one before?" asked Andy, desirous of keeping up
+friendly relations with the crowd, for he knew how important that might
+prove, since, as yet, no man wearing a blue uniform had put in an
+appearance; and should any hoodlum choose to play "rough house," or try
+to be too familiar with the apparatus, there was always a chance that
+some damage might be done.
+
+"No, I ain't, but I seen a picture of that 'ere Coffyn feller, a-flyin'
+down on the Hudson river nigh New York; and she looked a heap like this
+here shebang," came the quick response.
+
+"Well, you guessed right that time, for that is what it is called, a
+hydroplane; because it can be navigated on the water as well as in the
+air. And if you'll please stand back, so as not to bother with anything,
+because the least handling may put the whole machine out of tune, I'll
+be glad to tell you something about how we manage to use it as a boat."
+
+Andy knew how to manage, and he exerted himself to entertain the crowd
+while Frank was absent, keeping their interest aroused by little
+stories of things that had happened to birdmen in recent times, and
+which were of course well known to him, from the fact that both the
+cousins kept in close touch with all that went on in the world of
+aviation.
+
+All the while Andy was keeping one anxious eye out for the sign of a
+blue uniform and brass buttons, while new additions kept arriving
+constantly to swell the eager crowd gathered on the park green.
+
+In the end he was vastly relieved to discover a policeman hurrying up,
+looking as serious as though he expected to discover a fight, or two
+youngsters matching pet roosters, to the delight of the gathered host;
+for since the flying machine lay on the ground it was mostly concealed
+from his view; and he would never have known what it was anyway.
+
+Of course, when he arrived on the scene and took command Andy quickly
+gained his favor by a little subtle flattery; and after that felt that
+he was, as he himself expressed it, "on Easy Street."
+
+Meanwhile Frank had proceeded direct to the drugstore on the corner,
+about two blocks away from the end of the green, where they had told
+him he could talk over the long distance phone with Bloomsbury.
+
+He was pleased to find that they had a regular booth in the store; for
+he knew of numerous cases where the phone simply stood on a little
+stand, and everybody could hear what the subject of the talk might be,
+especially one side of it.
+
+Once closeted in the booth he hastened to ask for connection with Police
+Headquarters at Bloomsbury. There was some little delay, as though these
+long distance calls might be of rare occurrence in the local Central;
+but finally he received notice that connection had been made, and he was
+at liberty to start his message.
+
+"Hello! this Bloomsbury?" Frank asked first of all in a cautious way.
+
+"Yes," came the reply, distinctly enough.
+
+"And is this Police Headquarters?"
+
+"Yes."
+
+"This is Frank Bird speaking and we are over in Rockford; get that?"
+Frank continued.
+
+"Yes," again came the reply from the party at the other end.
+
+"Chief Waller asked us before we left Bloomsbury to keep in touch with
+Headquarters, and that you would supply us with any new information
+that might come to hand while we scoured the country overhead, looking
+for signs of the men who robbed the Bloomsbury bank last night, and
+escaped in Percy Carberry's biplane. Who is this I am talking to,
+please?"
+
+"Officer Green, Frank."
+
+"Oh! is that you, Joe; I didn't recognize your voice over the wire,"
+Frank went on to say. "You heard what the Chief said about giving us the
+latest news, didn't you, Joe?"
+
+"I certain did, Frank," answered the man at the other end of the wire.
+
+"We've covered quite a large territory up to now, and think we've run
+across a clue; but we want to make sure before putting the bloodhounds
+of the law on the scent. Get that?"
+
+Frank was wise to the fact that Officer Green took himself and his
+position on the local police force very seriously. True, he had never
+done anything very great, to distinguish himself, beyond once stopping a
+runaway horse that some people said was too decrepit to have gone twenty
+paces further; and rescuing a little pet dog that had fallen into the
+lake from a wharf; but then he believed in himself; and read up all the
+thrilling stories of police achievements that were published in the New
+York papers, satisfied that sooner or later the day was bound to come
+when he would be able to prove himself a grand hero.
+
+And that was just why artful Frank used that phrase "bloodhounds of the
+law," for he knew that it would cause Joe Green to puff up with pride,
+and feel more kindly disposed than ever toward the speaker.
+
+He gauged matters exactly right, too, it seemed; for when the police
+officer spoke again it was with additional eagerness.
+
+"Good for you, Frank; all Bloomsbury expects the Bird boys to do the old
+town proud again. Many the time have you done it in the past, we all
+know. And when you feel dead sure that you've got track of the desprit
+villains who looted our town bank, all you have to do is to give the
+police the signal, and they'll throw a drag-net around the hang-out of
+the yeggs. That's what we're here for; that's what we draw our salaries
+for; to protect the citizens of Bloomsbury against danger by fire,
+flood, robbers and the like."
+
+Frank knew only too well how Officer Green liked to talk, especially
+when once started on the subject of his exalted office; and accordingly
+he thought it time to cut him short, before he could get launched on the
+sea of police duties.
+
+"Tell me, have you learned anything new since we left?" he asked.
+
+"Why, yes, we've just had a man in here, who had heard about the
+robbery, and that it was suspected the thieves had escaped by means of
+the biplane belonging to the Carberry boy. He thought as how we might be
+glad to know that he'd sighted a flying machine just after daybreak."
+
+"Why, yes, that ought to be an important piece of news," remarked Frank,
+wondering whether it would corroborate that which the farm hand,
+Felix Boggs, had already contributed to the fund of knowledge concerning
+the movements of the fleeing yeggmen.
+
+"I thought it was; and I'm only waiting right now to forward it to the
+Chief, as soon as he calls me on the wire from Hazenhurst, or some other
+place where he's apt to turn Up," came over the wire from the home town.
+
+"Don't cut me off, yet, Central!" called out Frank, hastily, as he
+thought he detected an uneasy movement, which was doubtless a sigh given
+by the girl, who possibly had her ear to the wire, drinking in what was
+being said: "I'm not near done talking yet. Hello! Joe!"
+
+"Yes, I'm here, Frank; what more do you want to ask me?" came from miles
+away; and in imagination he could see Officer Green crouched at the
+telephone stand, as he remembered it at Police Headquarters in
+Bloomsbury, feeling the importance of his relations with the public as a
+genuine guardian of the peace.
+
+"Why, it's of considerable importance to us to know in which direction
+the aeroplane was going at the time this party sighted it," Frank went
+on to say, "and I hope he told you that."
+
+"Which he did without my asking," replied Officer Green, quickly,
+"though you may be sure I would have done the same before letting him
+leave, because I was on to the fact that it would be a pretty good
+pointer."
+
+"Oh! he thought of it himself, did he?" the young aviator shot back,
+"well, that was pretty bright of him, and shows that he was a fellow to
+take notice. And now, please tell me what he said about the direction in
+which the biplane was headed, at the last instant he could see it far
+away in the distance."
+
+"Exactly southwest, Frank!"
+
+This gave Frank a sudden jar, because it upset the theories he and Andy
+had been forming concerning the escaping bank robbers. They had believed
+the two men had gone almost directly north!
+
+"Southwest, you say, Joe?" he asked, wishing to make assurance doubly
+sure.
+
+"He said exactly southwest; and as he kept repeating that word a number
+of times there isn't a bit of chance that I'd get it mixed. You can
+depend on it, Frank, and if you're away up at Rockford, seems to me
+you'll have to make a big change of base right soon, if you want to get
+in touch with them raskils."
+
+Frank's mind was in somewhat of a whirl. He wondered whether the farm
+hand, Felix Boggs, could have been mistaken in what he had said; though
+Andy, too, had seen the biplane, and noted the direction of its flight.
+But perhaps this farmer, or whoever he might turn out to be, had
+discovered the fugitive flying machine at a much later time, after the
+two men had changed the course of their flight.
+
+"I suppose you might as well tell me who the party was from whom you got
+your news, Joe," he remarked; though without any particular object in
+view, since he could hardly expect to hunt the other up, and ask more
+questions.
+
+And then came the answer, that gave Frank quite a thrill, as he grasped
+the peculiar significance of it all.
+
+"Why, you know him all right, Frank," said Officer Green, glibly, "he's
+the pilot of the little lake steamer, and his name's Todd Pemberton!"
+
+
+
+
+CHAPTER XI
+
+
+COMPARING NOTES
+
+"He must have hurried up to Headquarters, then, as soon as he landed,
+because we saw the Mermaid crossing the northern end of the lake, bound
+for the lumber camp, before heading for Bloomsbury. How about it, Joe?"
+Frank went on to ask, as soon as he had recovered from his surprise
+after hearing that particular name mentioned.
+
+"Said he heard about the robbery," came over the wire in Officer Green's
+ponderous tones; "and the fact of the raskils skipping out with the
+Carberry boy's biplane, as soon as he put foot ashore; and thinking that
+the police might like to know what he had seen, he just ran all the way
+here."
+
+"Which I take it was mighty thoughtful of Todd," declared Frank, drily;
+but if he spoke sarcastically the fact was not known to the man at the
+other end.
+
+"I told him so, and complimented him on his zeal in assisting the course
+of justice," the other continued, "which was all the more remarkable,
+you know, Frank, because, to tell the truth, Todd himself was once a bad
+egg, until he reformed, and got his present job. It does him great
+credit, sure it does."
+
+"He went away after letting you know that if you hoped to capture the
+thieves you'd have to chase southwest, and not north, didn't he, Joe?"
+
+"Oh! yes, about ten minutes ago, I reckon. But I assured him that if we
+did succeed in capturing the rogues he would not be forgotten in the
+division of the reward that was sure to be offered by the bank for
+the recovery of the money and securities that were taken, not to speak
+of the five hundred young Carberry has said he would pay for the
+recovery of his biplane and the arrest of the thieves."
+
+"That was nice of you, Joe; but only what might be expected because your
+heart is as big as a bushel basket," Frank went on to say, "and when you
+told Todd that, how did he take it?"
+
+"Why, he just chuckled, and looked at me kind of funny, and said he
+never hoped to take any of the hard-earned reward money that the police
+were justly entitled to because of their activities," replied the other.
+
+"It's plain to be seen that Todd is a generous fellow. But I'm obliged
+to you, Joe, for giving me this information, because, you see, we've now
+got some foundation to build on. Goodbye, Joe!"
+
+With that Frank rang off. He knew that he might chat with the gossipy
+police officer in Bloomsbury for at least fifteen minutes, but what was
+the use, when he already knew all the other had to tell?
+
+And the news that had come over the wire was of considerable importance,
+too. He smiled as he hurried out of the drugstore, not even waiting to
+quench his thirst at the soda fountain, though a short time before he,
+as well as Andy, had complained of feeling so exceedingly dry; but then,
+all that was now forgotten in this excitement connected with the latest
+development in the robbery case.
+
+It was back to the village green, now, with Frank.
+
+The crowd was greater than ever, and he quickly saw there would be no
+opportunity for any communication between himself and his cousin until
+they had left for the upper realms, where, surrounded only by silence,
+they could converse while the busy motor hummed and the aeroplane headed
+as they willed, either high above the hills, or skirting the tops of
+the forest trees.
+
+Accordingly, Frank addressed himself to the arduous task of getting away
+without any mishap. He, as well as Andy, had long since learned that it
+is the part of wisdom to gain the good will of a curious crowd. In that
+manner many friends are raised up, who are only too willing to lend a
+helping hand.
+
+He quickly selected half a dozen fellows who looked as though they might
+be of more than ordinary importance among the boys of Rock-ford. These
+he particularly picked out, and asked them to assist the police officer
+to keep the crowd back until they could get a good start, at the same
+time explaining that a clear passage would have to be made ahead, and
+that anyone getting in the way might not only be seriously injured, but
+wreck the machine as well.
+
+Proud to have been thus honored, the six boys proceeded to push back the
+gaping crowd and when Frank gave the word, also assisted in starting the
+hydroplane on its way.
+
+A salvo of loud cheers rang out when they started, and this burst into a
+furious chorus as the well balanced aeroplane presently left the ground
+to start upward into the air.
+
+"I'm glad that's over with," said Andy, when they were safely off the
+ground, and the shouts of Rockford's enthusiastic population began to
+grow fainter in the distance.
+
+"Same here," echoed Frank, "you never know what will happen when a crowd
+is pushing all around you, every fellow eager to just say he had hold of
+a flying machine. There's always one or two of the lot ready to hang on
+and risk their lives just to see how it feels to be carried up on an
+aeroplane. They're the kind I'm most afraid of."
+
+"Well, did you get Police Headquarters in Bloomsbury, Frank?"
+
+"No trouble about that; and our old friend, Officer Green, was in charge
+during the absence of the Chief," the other Bird boy answered.
+
+"Anything new developed since we left?" asked Andy.
+
+"Just one thing, and Joe thought it meant a whole lot," Frank went on to
+say.
+
+"Which was what?" inquired the other.
+
+"A man came hurrying in and told how he had seen a flying machine
+containing two parties just after daybreak, and making directly toward
+the southwest, Andy. What do you think of that now for news?"
+
+His cousin gave a whistle.
+
+"Whew! important, if true!" he vouchsafed, tersely.
+
+"That sounds as if you had some trouble believing it?" chuckled Frank.
+
+"Well, considering what I saw myself, I'd have to know the name of this
+party first, before I'd believe anything he said," Andy went on.
+
+"Oh! You know him, alright; fact is, we were speaking of the same not a
+great while back," Frank observed, quietly.
+
+"Don't make me start in guessing, Frank, because we've been talking of a
+dozen people; but tell me right out who it is," Andy pleaded.
+
+"The pilot of the Mermaid, Andy!"
+
+"Gee! Do you mean Todd Pemberton?" exclaimed the other.
+
+"Just him and no one else. Why, he was that anxious to let the police
+know he had seen an aeroplane steering away straight into the southwest
+early this morning, that as soon as he warped his boat to the wharf,
+Todd, like a public-spirited citizen, hiked away for Headquarters as
+fast as he could run, hardly waiting long enough to understand about the
+bank being robbed, and Percy's biplane being used by the thieves as a
+means of making a quick get-away."
+
+Andy turned his head and looked in his cousin's face.
+
+"Public-spirited citizen go hang!" he said, contemptuously. "After what
+we saw, Frank, it's easy for us to understand just what it was made Todd
+want the police to do all their hunting away off in the southwest."
+
+"Yes, what do you think was his object?" asked Frank, as he held the
+aeroplane just about five hundred feet above the level ground, covered
+by forests, as in most places around to the north of Bloomsbury, though
+occasionally they ran across farms that looked like oases in the
+dessert.
+
+"Why, that's as plain as the nose on my face," replied Andy, "and nobody
+ever had any trouble about seeing that, I guess. Todd wanted to get in a
+little bit of assistance for his friends, the hoboes who looted the bank;
+and he could do them the best thing ever by turning suspicion in nearly
+the opposite quarter. If Chief Waller could be assured that the last
+seen of the biplane before it vanished in the distance it was heading
+into the southwest, of course he'd take all his men off in that
+direction; and the bank robbers, hiding perhaps around the northern end
+of Lake Sunrise, would be free to do whatever they wanted. Do I hit
+about the same guess that you do, Frank?"
+
+"You've just echoed what I had in mind," returned his cousin, "only
+I've had more time to think it over, and perhaps gone a little further
+than you could."
+
+"As how?" demanded the other, promptly, just as Frank knew he would.
+
+"Why, you know, it struck us as queer that these fellows should want to
+hang out within twenty miles of the town where they'd just made a
+successful raid on the bank. It would stand to reason that they'd be
+only too glad to cut for it, after getting possession of Percy's fine
+new aeroplane, and by keeping on north, reach Lake Ontario, and perhaps
+fly across to Canada, where they'd be safe."
+
+"Yes, sure; we talked that over before, Frank, and came to the
+conclusion that either they'd met with some sort of accident to the
+biplane, and had to hold over till the fellow who used to be an aviator
+repaired the same; or else that they had some other robbery in mind, and
+wanted to make a double killing of it before skipping out."
+
+"All right. You can see, then, that if Chief Waller and about all his
+men got on a warm clue that led them off to the southwest for a day or
+so, it would leave things open for the carrying out of this second
+scheme!"
+
+When Andy heard his cousin say this so gravely he seemed more startled
+than ever.
+
+"Say, I believe you've gone and struck the truth just as you nearly
+always do, old fellow, not by luck, but by figuring it out. To get the
+coast clear, then, this sly Todd Pemberton means to go on bringing in
+important news, and keeping poor old Chief Waller worked up to top-notch
+speed, chasing around down there after shadows! Yes, that must be the
+game they've got in hand; and perhaps that's what all those waves of
+handkerchiefs meant between the pilot of the little Mermaid, and the
+fellow we couldn't see, who was hidden in the bushes on Norton's Point."
+
+"He was undoubtedly there just to give Todd the high sign when the boat
+passed. Both of us spoke of the fact that we'd never known the steamboat
+to keep so far north when making the run from Cranford, across the lake,
+up to the lumber camp on our northwest side. But now we can understand
+why; he wanted to make sure his partners in crime were ready for him to
+do his little share in the game; which is to send the police on a wild
+goose chase and leave Bloomsbury next to unprotected tonight."
+
+"But whatever in the wide world, Frank, do you think they mean to try
+next?"
+
+"I couldn't guess in a year," was the reply of the boy who manipulated
+the levers of the hydroplane so dextrously. "It might be any one of a
+dozen or two games. The bank isn't the only institution in Bloomsbury
+carrying a lot of money in the safe. And then there are several rich men
+we happen to know, who keep a little fortune about the house, in the way
+of money, jewelry, or curios. For all we know, these yeggs may even have
+an eye on your house or mine, because they could make a pretty good haul
+there."
+
+"Whew!" was all Andy said just then; but his mind was undoubtedly filled
+with startling ideas.
+
+
+
+
+CHAPTER XII
+
+
+AT THE HOSKINS FARM
+
+"Well," Andy went on to remark, presently, "I see you are turning back
+again in the direction of the head of the lake. I hope, Frank, you don't
+mean to go all the way to Bloomsbury, and put the police in possession
+of the few facts we've succeeded in picking up."
+
+"That was not my calculation at all," replied the other, "in the first
+place, we suspect a good deal, but up to now we haven't got very much
+positive evidence on which to found a case. I'd like to know a little
+more before I get the Chief on the wire, and put him wise."
+
+"Then when we get near the northern end of the lake perhaps you'll think
+it best to make a landing somewhere, and prowl around on foot, finding
+out what we can," Andy, continued eagerly; for he had become much worked
+up by this time, and was hoping that fortune would be as kind to them as
+on a previous occasion, which all Bloomsbury remembered very well.
+
+"If we can only find a decent opening where we could make a get-away
+again, that is the only thing that bothers me," Frank replied.
+
+"Now, I remember noticing a field near what seemed to be a lonely
+farmhouse; in fact there were a number of open places there, and they
+seemed to have Canada thistles growing in clumps, all a-bloom, as if the
+farmer had given up cultivating, and let things just go to rack and
+ruin. I was never up there myself, but from what I've heard my father
+say, I rather think that must be the Hoskins place. They say he
+consulted some fortune teller a couple of years ago, who told him he
+would some day discover a gold mine on his property that would make him
+a millionaire; and ever since the farmer has spent about all his time
+digging here and there, but up to now without any success at all."
+
+"Why, yes, I remember hearing a lot about the queer old farmer myself,"
+Frank went on to say. "He's got a wife, and a half-grown daughter named
+Sallie. I met her at a country dance last winter, and she's a pretty
+nice sort of a girl. Now, we've been on the move a good while, Andy, and
+perhaps we might manage to make the Hoskins farm around the dinner
+hour."
+
+"A bully good idea, too, Frank, and don't you forget it!" cried the
+other, with considerable show of enthusiasm. "Now, I just bolted what
+little breakfast I got this morning, and already I feel hungry enough to
+eat nearly anything. And speaking generally, these country people do set
+a great table; though I don't know how it will be with the Hoskins,
+because, if they've been neglecting their farm to chase around after
+rainbows, they probably won't be any too flush with supplies. But any
+port in a storm, and I guess we'll be able to get filled up; if only we
+can make a landing, and find the farm."
+
+"As I figure it out, Hoskins' place wouldn't be over a mile or so
+directly above Norton's Point, Andy," the pilot of the expedition
+continued, thoughtfully.
+
+"Yes," Andy said, encouragingly.
+
+"And perhaps, now, we might happen to run on some sort of a little clue
+there. For instance, one of those yeggmen may have wandered around, and
+bought some eggs or milk from the farmer's folks; because, if they've
+been camping out in the woods, they've had to eat all the while, you
+know."
+
+"A good idea, Frank; and we'll ask, if we're lucky enough to happen
+around the lonely farm about meal time."
+
+"I'm going to make it a point to be there, and as we've got some time
+to kill meanwhile, let's hop over to that nice landingplace at the foot
+of old Thunder top, and overhaul the machine again. There are a few
+things I'd like to tinker with, because I'm not quite pleased with the
+way they work; and you know, Andy, I'm a regular crank about having a
+motor run like a watch."
+
+"Well, I'm getting that way mighty fast, thanks to your hints, and the
+knowledge of how it pays, when you're taking your life in your hands
+every time you go up in one of these heavier-than-air outfits," was what
+the other Bird boy observed, with what was a thoughtful look, for him;
+because, as a rule, Andy appeared to be a merry chap, and laughing much
+of the time.
+
+Within half an hour they had successfully landed at the place indicated,
+and which had witnessed the coming and going of the young aeronauts on
+numerous occasions.
+
+Here at least they could remain and take things easy while waiting for
+the morning to slip along, so that eleven would roll around. Little
+danger of their being bothered by curious persons here; indeed, the boys
+had never yet known a solitary man or boy to come around the place.
+
+They could look up while lying there on their backs, and watch the
+fleecy clouds sailing swiftly past the lofty crown of the rocky
+mountain. And how vividly there came into their minds memories of lively
+times which they themselves had experienced up there on the summit of
+old Thunder top.
+
+They spoke of them now, as they lay stretched out on the soft turf, and
+watched the two white headed eagles soaring far up in the blue heavens,
+around and around in circles, without ever seeming to flap their great
+wings.
+
+Once the young aviators had engaged in a terrible conflict with those
+two mighty birds, on the crown of the mountain, where they had landed
+with their aeroplane, and been looked upon as intruders by the eagles,
+possibly under the belief that they entertained hostile intentions
+toward the fledglings in their nest that was built amidst the crags,
+close to the tip of the lofty peak.
+
+Frank and Andy often spoke of that thrilling episode, but never without
+some sort of little shiver, because it had been a serious time with them
+since one blow from those powerful wings might have toppled them over
+the edge of the dizzy height, and sent them to their deaths.
+
+But they had succeeded in beating their feather antagonists off by the
+aid of clubs which they wielded with vigor; and after the eagles learned
+that no harm was intended to their young by these bold navigators of the
+upper air currents, they came to have more respect for the strange
+winged thing that came humming up from the earth on more than one
+occasion.
+
+When eleven o'clock came around, the boys were off again, and headed
+toward the northern end of the lake.
+
+Of course they kept close down to the treetops, because, once they
+discovered the opening, they would wish to drop into it as easily as
+possible.
+
+Suddenly Andy, who was on the lookout, while Frank paid more attention
+to the easy working of the motor, and the steering of the hydroplane,
+uttered an exclamation of satisfaction.
+
+"I see it, dead ahead!" he remarked, in a satisfied tone. "We made a bee
+line to the place from the foot of the mountain, Frank. And unless I'm
+away off in my guess, the farmhouse lies over yonder beyond the trees;
+so nobody's apt to see us come down; and we can make any sort of yarn we
+want, to explain just why we're here right now."
+
+"We can do that all right, without telling anything that isn't so,"
+replied the other aviator. "The farmer doesn't know us, though Sallie
+will, and on that account we must be careful what we say. But the
+dinner's the main thing just now. And at the same time we'll try and
+pick up a little information, if Farmer Hoskins happens to know anything
+that would interest two fellows of our stamp."
+
+He passed over the opening once, to make sure that it contained all the
+necessary requisites for a successful landing, and also a launching of
+the airship. Then, making a graceful sweep back again, Frank allowed the
+aeroplane to drop lightly to the ground. It landed in almost the center
+of the field, and both boys saw that they might get away again without a
+great amount of trouble.
+
+"Fine!" was the comment of the pilot, as he jumped to the ground, and
+bent over to detach some part of the machinery without which the motor,
+as Andy always said, "would not move worth a cent." This he often took
+with him, just as a chauffeur might the spark plug of an automobile,
+rendering it helpless unless the would-be thief were prepared to supply
+the deficiency off-hand, which was a remote possibility that never
+worried Frank.
+
+"Now for grub!" announced the hungry Andy, leading off in the direction
+where he had reason to believe the farmhouse lay; Frank always declared
+that Andy had a most wonderful nose for a meal that was preparing, and
+could spot a camp a mile away just by the smell of frying onions, or
+coffee cooking.
+
+At any rate he proved to be a successful pilot on the present occasion,
+for in a short time they were passing through an abandoned grain field
+where the bees and butterflies were swarming about the many lavender
+colored flowers of the great clumps of thistles; and the smoke from the
+farmhouse kitchen arose just over a little knoll.
+
+"Told you so," said Andy, as they drew near the house, and caught
+fragrant odors of cooking in the air.
+
+Upon their knocking a girl came to the open door, and recognized Frank
+immediately as a boy she had met at the country dance the preceding
+winter. But nothing she said would indicate that the Hoskins, living
+here away from the world as they did, with the head of the house
+spending all his time hunting for that treasure-trove he still believed
+in, had heard anything to speak of about the wonderful things the Bird
+boys had been doing lately.
+
+Frank was glad of this, and he just casually mentioned that they
+chanced to find themselves near the farm, and wondered if they could get
+dinner there.
+
+So the good housewife was brought out, and with true country hospitality
+she immediately invited both boys to sit down with them, although saying
+that they were not as well supplied with the good things that used to be
+seen on their table before father took to boring those horrid holes all
+over the place, thinking to strike a coal vein, or perhaps a silver
+mine.
+
+He was off now, and would not show up until night, for the farm was one
+of vast dimensions, and covered miles of territory.
+
+"But we have a boarder," said Sallie, as they sat down at the table.
+"Sometimes he's here to meals, and again he gets so far away chasing his
+butterflies that he just carries what he calls a snack in his pocket.
+Such a queer little man he is too, with his brown glasses on, and always
+running this way and that with his little net in which he captures the
+butterflies that come to the thistles on our old barren fields. Perhaps
+he'll turn up while you're here. I'd like you to meet Professor
+Whitesides, who is from a big college, he tells us, and spending his
+vacation in the way he likes. Sometimes I think he's a little off up
+here," and she touched her head as she said this, "and that perhaps he
+got hurt worse than he thinks, the time he met with the accident that
+crippled his arm."
+
+Somehow Andy looked up when he heard about that broken arm to find his
+cousin giving him the wink, while his eyebrows were elevated in a
+suggestive way, just as much as to say:
+
+"Now, here's something mighty interesting already that would pay us to
+look into; because we know of another fellow who is troubled with a
+crippled arm and his name happens to be Casper Blue!"
+
+
+
+
+CHAPTER XIII
+
+
+THE BUTTERFLY COLLECTOR
+
+The dinner passed off without the odd little professor showing up,
+although Sallie said it was nothing unusual for him, and that he was
+liable to appear at any time, carrying his little white hand-net, and a
+small handbag in which he claimed to keep the trophies of the chase that
+had been run down during his last campaign.
+
+Frank wanted to get a chance to confer with his chum, and as soon as he
+could conveniently withdraw from the table, giving Andy a nod, he went
+out on the porch where he could look down the lane that led to the poor
+road, which in turn, after many trials and tribulations merged into the
+main pike.
+
+Andy joined him there a minute later, with a question in his eye.
+
+"Professor Whitesides!" was what Frank remarked.
+
+"And a butterfly collector at that!" Andy went on to say, with cutting
+sarcasm.
+
+"That sounds pretty rich, to me," his cousin continued. "I wonder, now,
+could it be possible that the other man we've heard of lately, Casper
+Blue, is playing a smart trick on these honest people, who would never
+dream that he could be anything else than he claimed."
+
+"It would give him a splendid chance to wander around just whenever and
+wherever he wanted to go, and nobody to ask questions. Then, when he got
+hungry, why, he could drop in at the farm. Perhaps he don't like camping
+out as well as the other fellow; perhaps his health is too delicate to
+stand roughing it. Or he might have any one of a dozen other reasons for
+carrying on this way; always providing that this is Casper Blue."
+
+Andy was brimful of excitement. His manner would forcibly remind one of
+the nervous tension that seizes upon the hounds when the scent grows
+strong, and they anticipate coming in sight of their quarry at any
+moment.
+
+"We're taking a good deal for granted, seems to me," remarked Frank.
+
+"Of course, but then see how queer it is that this man who calls himself
+a college professor, and collector of bugs and butterflies, should just
+happen to drop in here at the Hoskins farm, where the thistles grow so
+wild, and the moths and other things are to be found by thousands. We
+never heard of him in town, that I can remember. And then he's small in
+size; together with a stiff arm, that was injured in an accident; well,
+wasn't Casper Blue knocked out of his job as an air pilot by his arm
+failing him when he had to handle the levers like a flash, or have his
+aeroplane turn upside-down, Frank? I tell you I just feel dead sure it's
+our man, and that we've found the clue we want the first thing."
+
+"Well, if we could manage to get a peep into his room perhaps we would
+run across something worth while?" Frank suggested.
+
+"We might pretend to be deeply interested in butterflies ourselves,"
+remarked Andy, "even if we don't really know one kind from another; and
+perhaps, if you gave Sallie a sly hint that you'd be tickled to see what
+sort of a collection her professor has with him, she'd let us look in
+his room."
+
+"We'll make the try, anyhow," said Frank, firmly.
+
+"But think of this Casper Blue being able to carry out the part of a
+learned professor, would you? That is something most yeggmen would find
+a pretty hard proposition, don't you say, Frank?"
+
+"Well, stop and think a little, Andy," was the other's reply to this.
+"From all accounts this man isn't just a common, everyday hobo. He used
+to be known as something of an aviator before he met with that accident
+that disabled his arm, and made it impossible for him to go up again.
+And the fact is, I seem to remember having seen that name mentioned
+among a list of airmen who had been either killed, or knocked out by
+accidents happening to them."
+
+"That's all right, Frank, but it takes a pretty smart man to carry out a
+part like he's doing."
+
+"Didn't Larry tell us that this same Casper Blue had once been an actor
+before he took to the air for a living?" asked Frank.
+
+"You're right, he did that same thing, but somehow it seemed to have
+slipped my mind. But you never forget a single thing, do you, Frank? And
+if he used to be an actor, why, of course Casper would find it easy to
+play this part. Perhaps he's just enjoying it the best you ever heard
+of. Some people are never happy unless they're hoodwinking others."
+
+"Let's go back and find Sallie, and get to talking about butterflies and
+gypsy moths, and all sorts of things in that line we can think of,"
+suggested Frank. "Then she'll believe we're head over ears interested in
+what her boarder is doing, and if I give her a little hint she may ask
+us to step in and take a peek at his room. Of course we mightn't pick up
+anything worth while there; and then again there's always a little
+chance we could."
+
+"It's worth while, I think," declared Andy, who seldom disagreed with
+any proposition his cousin advanced, simply because Frank was usually so
+wise that he succeeded in covering the whole ground the very first
+thing.
+
+So they once more left the porch, though both boys looked down the lane
+before going in, to make sure that the queer little butterfly collector
+was not coming in time to interfere with their immediate plans.
+
+Sallie was just tidying up the diningroom when they found her. The good
+woman of the house seemed to have gone into the kitchen, where she was
+preserving some sort of fruit, or making catsup, to judge from the
+fragrant odors that came floating out from that part of the farmhouse.
+
+Naturally Sallie was only too willing to enter into conversation again
+with two such attractive looking and bright boys as Frank and Andy Bird.
+She must have been aware of the fact that they were favorites among the
+girls of Bloomsbury; and of course also knew something about their being
+aviators, although both or 'them had shunned that subject carefully
+while at the dinner table.
+
+And so Frank managed to gradually steer the conversation around to the
+subject of bug collection. He told of a friend he once had who was
+"daffy" along that line, and would rather capture some queer looking old
+night-flying hairy moth, with a death's-head sign on his front, than
+enjoy the finest supper, or listen to the best play.
+
+That allowed Andy to venture the suggestion that he had taken
+considerable interest in butterflies himself, and always wanted to see a
+collection that was worth while. Of course he did not have to explain
+that the only interest he ever did have in the matter was when, as a
+very small boy, he used to chase after the fluttering insects as they
+went from flower to flower, until shown by his mother how cruel it was
+to destroy the life of such wonderfully beautiful things, that he could
+not restore again.
+
+Sallie took the bait, Andy knew from the eager light that flashed upon
+her face. And when he saw her step over to a window, and look quickly
+down the lane, he turned to his cousin, and made a grimace as much as to
+say, "See how she fell to my little game, will you, old fellow?"
+
+"Well," said Sallie, flitting back again, "Professor Whitesides hasn't
+got a very large collection; and the new specimens he gathers day after
+day he kept in some place, because he has no time just now to do
+anything with them, he says; but come up with me, and I'll show you the
+little case he brought with him."
+
+"Sure we will, and I'm glad of the chance to see what valuable
+butterflies look like," Andy went on to remark.
+
+"He says this little collection is a very rare one, and worth an awfully
+large sum of money," Sallie went on to remark, in something of a
+confidential tone, as if getting the boys ready to be surprised when
+they looked upon the possessions of the industrious professor. "And oh!
+if you could only hear all the queer things he's been telling us that
+happened to him in foreign lands, when he was spending ever so much
+money, and long weary months, finding these very rare specimens. Why, I
+just stand there, and look at them, and wonder how people can be so
+foolish, when it seems to me I've seen much prettier butterflies right
+out there in our fields where the thistles are blooming."
+
+It seemed that the room they had given the wonderful man of science was
+on the ground floor, and opened off the parlor.
+
+The two boys followed Sallie in, and noted her rather awed manner 5
+evidently the professor, whether he turned out to be a fraud or the
+genuine article, had succeeded in arousing both her admiration and
+wonder.
+
+The room was plainly yet comfortably furnished, but evidently the
+professor, like so many other learned savants, did not know such a thing
+as "order" existed, for things were simply topsy-turvy.
+
+"He just won't let us sweep in here, or do the least thing," explained
+Sallie, as if she feared the boys would blame her for the looks of the
+room, "you know, he's so queer, and he says we might lose something that
+he valued very highly, thinking it was not worth keeping. But here's the
+little case containing those almost priceless specimens he collected
+abroad."
+
+She led them to a table on which a small case rested, leaning against
+the wall. Frank took one look. Apparently the sight affected him
+strangely, for immediately he bent over closer as though to feast his
+eyes on those costly trophies which the college professor had collected
+in foreign lands.
+
+Andy saw that his cousin was evidently having some sort of a silent
+laughing fit, for he shook all over though not uttering a single sound.
+
+"What ails you, Frank?" he whispered, taking advantage of Sallie having
+to hurry out of the room, as her mother's voice was heard calling her in
+the kitchen.
+
+"I'm tickled to death to meet an old friend again, that's all," replied
+Frank.
+
+"Do you mean to tell me you've seen this wonderful collection before?"
+demanded the other, like a flash, as it were.
+
+"I most certainly do; and if you stop to think, Andy, I guess you'll say
+the same; or perhaps, now, you didn't happen to examine the case as
+closely as I did, that day last spring when we crossed over to Cranford,
+to pick up a few rare stamps for our collection at Snyder's old curio
+store."
+
+"Why, bless me, I really believe you're right; I seem to remember seeing
+it in the show window, now, when we were looking at the little baskets
+of coins," Andy hastened to remark.
+
+"There isn't the least shadow of a doubt about it," added Frank. "Some
+time or other, when the notion came to this man to play the part of a
+butterfly collector, which perhaps the sight of the things brought to
+his mind, he just stepped into Snyder's store, and bought the old
+collection. Why, it hasn't got a single specimen that you can't find a
+thousand of, any day you look, through August and September."
+
+"Right around here, you mean, Frank?"
+
+"Right on this farm, in fact," replied the other, with a wide grin.
+"Think of the nerve of this learned scientist bringing this here, and
+telling that it represented the results of years of difficult research?
+You don't wonder, now, that I just had to snicker, do you, Andy?"
+
+
+
+
+CHAPTER XIV
+
+
+A CLUE
+
+"That looks bad, don't it Frank?" Andy went on to remark, as he first
+glanced at the bogus collection of rare specimens, and then eyed his
+cousin humorously.
+
+"One thing is sure, no man would go to the trouble and expense of buying
+even a dollar case of common butterflies unless he had some deep object
+in view, and you know that, Andy. This so-called professor must be a
+fraud, even if he doesn't turn out to be the man we think he is.
+Perhaps, he wanting to find out whether Hoskins had discovered that
+wonderful gold mine. Well, you needn't grin about it because stranger
+things have happened, I guess, now."
+
+Andy ceased laughing and turned to look around the room.
+
+"I wonder--" he began, and then stopped short.
+
+"Now I can finish your sentence for you," said Frank. "You wonder if we
+could make any important discovery if we looked around here a bit,
+while Sallie is helping her ma do up some fruit jars or something like
+that?"
+
+"Perhaps it wouldn't be just the right thing," suggested Andy, in
+confusion.
+
+"Under ordinary conditions it certainly wouldn't," his cousin went on to
+say; "but when you've got a pretty good idea that you're dealing with a
+slippery hobo, actor, past-aviator, and now a bank burglar and cracksman
+in general, why that puts a different face on the matter, don't you see,
+my boy?"
+
+"All right; let's take a look," said Andy, easily convinced that since
+they were really working hand in glove with the police authorities, they
+had a perfect right to prowl around in anybody's room, and pick up such
+valuable information as could be found afloat.
+
+But after all they found nothing that looked like incriminating
+evidence. The fact of the matter was that the professor did not seem to
+own any sort of wardrobe whatever, and had nothing belonging to him save
+the clothes on his back, the little case of butterflies which Frank
+believed he had bought for a dollar over in Cranford at the curio
+dealer's shop, and a few bottles holding some strong smelling acids,
+which possibly were used to either kill the captured butterflies so they
+would not beat their wings out; or else to preserve certain specimens
+of bugs he expected to run across in his hunts.
+
+"Nothing doing," said Andy, with considerable of disgust and
+disappointment in his voice.
+
+"Come here!" remarked his cousin, softly.
+
+"Hello! don't tell me you've found something?" and Andy crossed the
+floor in more or less haste.
+
+He found Frank bending over a table at which there were writing
+materials--pen, envelopes, paper and a blotter.
+
+"What's doing? Have you found the gentleman's notebook lying carelessly
+around, and which we can peep into, eh, Frank?"
+
+"Not at all," came the reply. "I was only looking at this blotter."
+
+"Whatever is there funny about that?" demanded the other, in puzzled
+tones, as he glanced first at the object in question, and then up at the
+face of his chum.
+
+"It was a new one, or nearly so, you see! and somebody has been writing
+heavily, and then pressing the blotter over it," Frank went on.
+
+"And if you could read backwards now, you might make out what they said;
+is that it, Frank?"
+
+"Oh! that part is as easy as falling off a log. I held it up to the
+looking glass here. See if you can make it out, Andy."
+
+Hardly had the other looked than he started to read, interjecting
+remarks of his own as he proceeded.
+
+"Some words missing, looks like, Frank; let's see; 'Car on
+siding----'rive at 11 P.M. Wed. He says keep low, and trust to
+him--throw--track. Mum.' That's all I can make out, because he didn't
+sign any name, it seems. Whatever do you make of all that stuff, Frank?"
+
+First of all Frank pulled out a pencil and copied the marks upon a piece
+of paper, which he thrust into his pocket.
+
+"He might miss the blotter if I cribbed it, and take the alarm," he
+explained, as he hastened to put the article in question back on the
+table, lest Sallie come in at any minute and discover what they were
+doing, taking liberties in the room of the boarder; and then she would
+have to be told everything, which might work out badly, Frank feared.
+
+"But I reckon you've got some sort of idea what that writing means,
+Frank?" pursued the other Bird boy, who, once he started on a subject
+could no more be shaken off than a bulldog.
+
+"Of course I have, and it's given me something of a shock, too, let me
+tell you, Andy. First of all, you may know that this very day is
+Wednesday."
+
+"The day he mentions there; to be sure it is. But Frank, can all this
+have some reference to another crime they mean to commit?"
+
+"I'm afraid it does," came the reluctant reply.
+
+"Tell me what he means by 'car, siding, track, mum,' and all that. Of
+course I can understand that he warns the fellow he's sending the
+message to to keep quiet. What car can he mean? Do you think they aim to
+steal some one's expensive car now--that they've gone and wrecked
+Percy's biplane, and must have another means for getting away?"
+
+But Frank simply shook his head at that.
+
+"Oh! you're away off your base there, Andy. He speaks of a car on a
+siding, and that can only refer to a railroad car. Now, I happen to know
+that they expect the pay-car to be along some time today or tonight, and
+it always lies there on that Jeffreys Siding, until they've passed out
+thousands of dollars to the men who call Bloomsbury their headquarters.
+Do you see now what it must mean, Andy?"
+
+Andy gasped, and then exclaimed.
+
+"Once more you've gone and seen through the riddle that knocked me
+silly, Frank. That's just what it must mean--the pay-car would offer fat
+pickings, all in cash; and they've held up their flight to Canada just
+to try and gobble it. Oh! what a slick game, with Todd giving false
+information, and perhaps just leading the police further and further
+away from Bloomsbury tonight, so as to leave the pay-car next to
+unprotected. Yes, and doesn't he go on like this, 'he says keep low, and
+trust to him'? That must mean Todd, don't you think?"
+
+"I read it that way," replied his cousin tersely, as he rubbed his chin
+in a reflective fashion; for they were now grappling with a dangerous
+problem, and Frank was only too well aware of the fact that a slip might
+upset all calculations, as well as possibly endanger their lives; since
+they were dealing with reckless men, and no boyish rivals like Percy
+Carberry and Sandy Hollingshead.
+
+"Do you think this was meant for the other one of the bank thieves?"
+Andy went on to ask.
+
+"It could hardly have been for any one else, Andy. There must have been
+more to the letter, but the rest dried before he blotted it."
+
+"And that fellow is in hiding somewhere, perhaps watching the biplane,
+and ready to fight before letting it be retaken, because they depend on
+it for their get-away to the great lakes and Canada;" Andy further
+observed.
+
+"Yes, just as you say," the other remarked.
+
+"And now since we've learned this much, Frank, what are we going to do
+about it--try and find where the stolen biplane is, and do something so
+as to make it no good for their purpose; or just slip away, go round a
+little like we were just out for a spin, and getting back to Bloomsbury,
+put them wise?"
+
+"Neither, just yet anyhow," the older Bird boy remarked. "Not the first,
+because it would be taking big chances, if, as we believe, one of the
+robbers is concealed near where the stolen biplane may happen to be
+lying, partly hidden with dead leaves, so it couldn't be noticed from
+above; and he would be apt to do something we'd find unpleasant. And as
+for going back and telling, we'll have to be mighty careful there."
+
+"And why, Frank?"
+
+"Well, to begin with, even the walls have ears, they say; and if the
+police were suddenly called back from their hunt to the southwest, the
+fact might get to the robbers; and you know what would happen then."
+
+"Oh!" said Andy, shrugging his shoulders, "I suppose they'd just throw
+this second job up, and cut stick for Canada, as fast as they could
+make the aeroplane spin, which would be too bad for Chief Waller, and
+Joe Green, and the rest of that bunch at Headquarters, who are already
+figuring on how they'll spend their reward money they hope to get when
+the bank pays for rounding-up the two thieves."
+
+"But, perhaps, if we just told our fathers, Andy, they might get a few
+bold men together and lay a beautiful trap for the fellows so that when
+they broke into the pay-car, they would be made prisoners."
+
+"Bully idea, that, Frank, and I hope you decide to carry it out. Just to
+think what a pleasant surprise it would be for our butterfly collector,
+expecting that he was going in to gather in another lot of plunder, and
+then to hear a voice say to him: 'Hands up! you're our prisoners!' Oh!
+wouldn't I like to be Johnny-on-the-spot when that happens. Wonder if
+they wouldn't let us have a part in the proceedings, after we brought
+the news that upset the plans of the yeggmen?"
+
+"That will do for just now, Andy, because here comes Sally again. Let's
+be gaping at the wonderful collection that almost cost the professor his
+very life in all sorts of hot countries, as well as a whole pocket full
+of money--if you don't care what you say."
+
+And when the farmer's daughter did enter the room a minute later, she
+saw the two boys standing there, a rapt look of admiration and envy on
+their faces, as they stared at the little case of common local
+butterflies which possibly some boy had gathered together, and then
+disposed of for a song.
+
+While the young aviators had in this fashion about decided on their plan
+of action, they saw no reason for any hurry. The day was still long, and
+when they felt like starting toward home it would take them but a very
+short time to get there.
+
+Meanwhile, there seemed to be some sort of fascination holding them to
+the neighborhood of the Hoskins' farm. And when they went away a little
+later it would be with the idea of hanging about, and seeing if the odd
+little professor might not come along. Both of them thought they would
+like to look at him. The man who was capable of playing such a clever
+game as this must surely be worth seeing.
+
+Then again, the fact that Casper Blue once upon a time had been a daring
+birdman had something to do with this interest on the part of Frank and
+his cousin, because there is always a certain fellow feeling between
+those who are engaged in the same dangerous pursuits. But possibly Andy
+on his part was hoping secretly that by spying around they might be able
+in some way to learn where the yeggmen had hidden the plunder they had
+taken from the looted Bloomsbury bank.
+
+
+
+
+CHAPTER XV
+
+
+WHEN CASPER CAME BACK
+
+Although the Bird boys had more than once before proved that they
+possessed all the courage and daring a successful aviator must have in
+order to accomplish the difficult tasks hourly presented to him for
+solution, it must not be thought that they were reckless to any degree.
+
+Andy might be slightly inclined that way, but Frank was an exceedingly
+careful navigator of the air, and by degrees his influence was even
+affecting his younger cousin, as example always will.
+
+When, however, a situation suddenly arose that absolutely required a
+display of daring, these young air pilots were "there with the punch,"
+as Andy termed it. They had learned how to volplane earthward from a
+dizzy height with absolute safety, when conditions were just right, and
+necessity required a quick descent. On a few occasions Frank had even
+been known to hazard what is known as the "death dip;" but it was only
+when there happened to be a good reason for taking such chances, and not
+merely in a spirit of dare-deviltry, such as many show aviators employ,
+just to send a shiver of dread through the spectators, and then laugh
+recklessly at the fears their boldness had aroused.
+
+Of course they might have decided to immediately return to Bloomsbury,
+and give information concerning the extent of their discoveries since
+coming to the Hoskins' farm.
+
+Perhaps that would have been the wisest move they could make but both
+boys were rather opposed to carrying it out just then.
+
+The afternoon was wholly before them, and who could tell what change of
+plans the two yeggmen might make before the coming of the night? Should
+they get wind of the presence of the Bird boys in the vicinity possibly
+they would take alarm, and hurrying to their concealed biplane make for
+the far North with all haste; and in this way, if no one knew of their
+departure the intended ambuscade that night in the vicinity of the
+railroad pay-car would be laid in vain.
+
+That was really what the boys feared the most--that their quarry slip
+off in secret, when they were far away.
+
+Frank was indeed trying to figure out whether it would not be best after
+all for him to stay by the hydroplane, on guard as it were, while Andy,
+by using a horse, if the Hoskins happened to still possess such an
+animal, managed to get to another farm, where they were up-to-date
+enough to have a telephone in the house, by means of which he could get
+in touch with Dr. Bird or Judge Lawson in Bloomsbury.
+
+Then again, there was always a slight chance that this pretended
+professor might have seen them descend, while he was wandering around.
+Once an airman, and just by instinct as it were, the eyes are almost
+constantly searching the heavens, perhaps for a glimpse of other
+adventurous craft, or it may be, signs that give warning of treacherous
+winds, gathering storms, or similar things that must always be of
+intense interest to an aviator.
+
+And so while Casper Blue had long since given up taking hazards in a
+flying machine to indulge in even more dangerous business as a bank
+robber, still habits would cling tightly, and thus he might have seen
+more than the ordinary man could have done.
+
+Of course, even though he sought the hydroplane, and found it lying
+there in the field, he could not very well make any use of it so long as
+Frank held the missing part in his possession.
+
+But he could in a spirit of maliciousness so utterly destroy the planes,
+and even injure the powerful little Kinkaid engine that it would be
+practically fit only for the scrap-heap afterwards. And that was giving
+Frank more or less concern, even while he continued to linger at the
+farmhouse because Andy wished to prowl around a little while longer in
+hopes of getting some clue to the location of the cache where the
+thieves had hidden their plunder.
+
+Sallie saw nothing strange in this apparent desire of Andy to hang
+around. She was rather a pretty little thing, and of course knew it; so
+that she may have believed the witchery of her attractions had more or
+less to do with the matter.
+
+Even when Frank asked so many queer questions about the absent boarder,
+Sallie was not wise enough to understand that the boys Were much more
+concerned about how Professor Whitesides amused himself, where his
+favorite lounging places seemed to be, and all that, rather than in her
+pretty face and merry laugh.
+
+Her mother must have counted on having her assistance in carrying on her
+task of putting up preserves in the kitchen, for once more she called to
+Sallie to come and lend a hand for a few moments.
+
+This left the two boys alone again, and gave them a chance for
+exchanging views, which they were not slow to do.
+
+"I guess he doesn't keep it around here, in this room, or anywhere close
+by," was Andy's first remark.
+
+Frank chuckled on hearing this.
+
+"Oh! I see that you've got your mind set on recovering what was taken
+from the bank. You're a mercenary fellow, Andy. But, then, since our
+fathers have more or less interest in the same bank, which is going to
+be mighty badly crippled if the cash and securities are not recovered
+sooner or later, why, I can't blame you much. I'd like to run across the
+loot myself, more than I can tell you."
+
+"I'm only afraid that if the men are taken prisoners to night, when they
+come to clean out the pay-car after it arrives in Bloomsbury, they'll
+not have this other stuff with them, and will refuse to tell where it's
+hidden. That will be just as bad for the bank as if they'd got away to
+Canada with the swag, as the Chief calls it. I wish I knew how we could
+track this Casper Blue to where the other yegg is hiding near the
+biplane, and watch them until we saw where they had the cache. After
+that we could just hang around, and when they started in a power-boat
+perhaps for Bloomsbury, with Todd Pemberton at the wheel, we could do
+something to make the biplane useless to them, and then toward evening
+put for home ourselves."
+
+Frank listened while the other ran all of this off, and evidently he was
+more or less amused at what he heard.
+
+"It's plain to be seen that you've been doing some tall thinking and
+planning all this while, Andy," he remarked.
+
+"But you'll admit, I guess, that if there was any way to carry out my
+scheme, it would be a jim dandy idea," the other persisted.
+
+"Of course; but that's where the trouble lies. Even if Casper did come
+back, we never could track him through the woods and around the swamps
+without his sooner or later discovering that he was being followed,
+because we're not clever at that sort of thing. And once he got wind of
+our being after him, chances are he'd lay some trap with his mate, into
+which both of us would tumble headlong."
+
+Andy scratched his head, and a look of doubt came upon his face.
+
+"H'm! I wouldn't like that one little bit, and that's a fact, Frank," he
+admitted, candidly. "If we fell into their hands and were kicked around
+and then left tied up like a pair of mummies from the pyramids of Egypt,
+while they went and cleaned out that pay-car, and sailed away for
+Canda--oh! excuse me, if you please. Anything but that. The laugh would
+sure be on the Bird boys. I don't mind posing once in a while as a hero;
+but it would jar me a whole lot to know that people were pointing me
+out, and telling how nicely these wonderful Bird boys had been taken in
+and done for by a couple of traveling yeggs. Have it your own way,
+Frank, and don't pay any attention to my silly schemes.
+
+"Your ideas are all right, Andy, but the only trouble is they are too
+strong for a couple of boys to carry out. I think we'd be wise to play
+safe. More games are won in the long run that way, than by being dashing
+and venturesome."
+
+"Of course you're right, and as I've had my little fling, and got it out
+of my system, let's work along the sensible lines you laid out, Frank."
+
+That was just like Andy. He might occasionally seem to yearn to break
+loose, and take a wild flight, but on second sober thought he nearly
+always came back to his cousin's way of thinking.
+
+Sallie still remained in the kitchen, so that they were able to keep on
+talking without any fear of being interrupted or overheard.
+
+"I'm wondering if Percy will ever have the chance to handle his Farman
+biplane again," Andy went on to remark. "He seemed to set a great store
+by it to offer such a nice fat reward for its return. And it's so brand
+new that he hasn't had much of a chance to try it out. Wasn't he mad,
+though, when he came racing along in that car looking for Chief Waller.
+He looked as red as a turkey gobbler. Just to think that while he was up
+there with three of his cronies trying to injure our machine, those
+yeggs were fixing it all up so that they could get his biplane, if they
+missed ours. It's a rich joke on Perc."
+
+"Oh! I hope he gets it back again safe and sound," said Frank. "Life
+would be rather tame for us around home here, if we didn't have Percy to
+think about. For a long time, now, he's kept us guessing, and we'd feel
+a little lonely if he gave up flying."
+
+"Guess you're right there, Frank, it would seem humdrum like if we
+didn't have to think of him every little while, and what new schemes he
+was planning to get the better of the Bird boys. And say, some of his
+games kind of dazzle a fellow, if only there wasn't so much meanness
+about 'em. When Perc gets to hating a fellow he doesn't stop half way,
+but goes the whole hog. Why, more than a few times he's given us a big
+scare, trying to do some stunt that would make us look small; and at the
+risk of sending us all down a thousand or two feet. After all, I'm
+beginning to believe I'd sleep sounder if Percy Carberry took to some
+other play, and let aeroplanes alone."
+
+"Well, he seems just as wild about them as ever, and so I reckon he'll
+just keep on bothering us to the end of the chapter. But what are you
+looking at, Andy?" and Frank also turned his eyes down toward the fringe
+of quince trees that marked the old lane leading to the barnyard from
+the road.
+
+"I thought I saw some one coming over there, and if it turned out to be
+our good friend, the profess, p'raps we'd be wise to skip out before he
+sighted us, Frank."
+
+"Here, let's step back out of sight, anyhow, so as to be ready to slip
+away if it is our man," and Frank drew his companion around the corner
+of the house, from which point they could still keep watch over the
+lane.
+
+Half a minute later Andy whispered:
+
+"There, I saw him again, Frank, and as sure as anything it must be
+Casper. He's a little man, wearing brown glasses to keep the bright sun
+from his eyes, and yes, he's carrying a butterfly catcher's net over his
+shoulder. Shall we disappear?"
+
+"I think that would be our best move, Andy; and lucky enough we've got
+the chance to slip around here, and get back of the barn before he comes
+along," with which the two boys hastened to follow out the plan
+suggested.
+
+
+
+
+CHAPTER XVI
+
+
+THROWING OFF THE MASK
+
+"Do you think he saw us, Frank?" asked Andy, after they had found a
+place where they could peep around a corner, without being discovered.
+
+"Well, that's more than I can say," the other replied. "We took every
+precaution, and unless he has mighty sharp eyes he couldn't have
+glimpsed us."
+
+"And you think it's safe for us to stay here, eh, Frank?"
+
+"Certainly," replied the other. "We're in a position to make a move any
+old way from here. There isn't one chance in ten of his coming around
+the corner; and if he does make a show of doing that, why we can be
+sitting here, playing mumble-de-peg, or something like that, just as if
+we didn't care whether school kept or not."
+
+"Bully for that; who cares for expenses? Look, Frank, I was right, you
+see, for it was the little profess after all."
+
+"Yes, sure enough. Careful now, Andy, and don't let him see you
+peeping. That'd give the whole thing away quicker than anything else."
+
+They had both selected positions where they could see without attracting
+attention. And it was with considerable eagerness that they fastened
+their eyes on the figure of the small, wiry man who was sauntering along
+toward the farmhouse, carrying a butterfly-net across one shoulder,
+while with his other hand he held a queer-shaped black case, which, as
+Sallie said, contained his more recent captures in the way of beautiful
+and rare moths and insects.
+
+"That's his stiff arm, Frank; see how he moves it--the one hanging down,
+I mean, with black box--good gracious! now, I wonder--"
+
+"H'sh!" whispered Frank, "not so loud; he might hear you."
+
+"Not with the roosters crowing like they are," said Andy confidently.
+"But just glimpse the black box would you, Frank?"
+
+"I am looking," returned the other.
+
+"He calls it the receiver for his new butterflies, but looks more like a
+kodak to me," Andy went on. "But d'ye know what I thought, Frank?"
+
+"Tell me," whispered the other, still watching the professor, who had
+come to a stop at some little distance away, and seemed to be busily
+engaged looking back of him, as though laying out plans for an afternoon
+campaign among the bright winged butterflies.
+
+"Why, how easy for him to tear out the inside works of a camera box like
+that, and make use of it for a better purpose, see?" Andy went on to
+say.
+
+"Oh! now you've got a bright thought for a fact," Frank sent back,
+careful not to raise his voice above that cautious pitch.
+
+"Well, it could be done; and I guess that little black box'd hold about
+all the money and securities that the bank lost. They say the thieves
+only picked out the papers they could dispose of, and left all the rest,
+which would indicate that the second yegg must have been in the banking
+line, some time or other, and knew what was what."
+
+"H'sh! he's coming on again! Lie low, now; Andy!"
+
+Accordingly both of them remained perfectly motionless as the professor
+advanced toward the house. Had he shown any disposition to head toward
+that particular corner Frank was ready to assume an attitude of
+indifference and appear to be engaged in some boyish game with his jack
+knife, tossing it up in the air, and causing the point of the long
+blade to stick upright in the ground.
+
+But the small man with the brown glasses and the butterfly net made
+straight for the front porch of the house, and passed in at the door,
+just as though he felt perfectly at home there.
+
+"Well, what next?" remarked Andy.
+
+For reply the other beckoned, and started hurriedly to gain the shelter
+of the woodshed near by.
+
+"What's this for?" questioned Andy, when they were once more crouched
+down, in a position where they could not be easily seen.
+
+"Stop and think," answered the other; "if he just happened to look out
+of a window on this side of the house he'd see us easily and our
+suspicious actions would tell him we were on to his game. Now even if he
+looks he won't see anything."
+
+"Huh! and do we stay here all afternoon just doing nothing; while p'raps
+he's taking a nap indoors?" grumbled the other, who wanted to be moving,
+and was never satisfied when not in action.
+
+"Wait!" was all Frank would say.
+
+Perhaps he could see further ahead than his cousin, and guessed
+something of what was likely to occur. They had not taken pains to warn
+Sallie or her mother to keep from mentioning the fact of their happening
+around; and chances were, that as soon as Casper Blue heard that the
+Bird boys had dropped in, he would become immediately suspicious.
+
+On questioning the girl he would be apt to learn how curious Frank and
+Andy had seemed about him; and Sallie might even admit that they had
+asked to see his wonderful collection of rare and costly butterflies.
+
+Well, if such a thing did occur, of course the keen-witted man would
+immediately know that the cat was out of the bag. Realizing that there
+must be a great hue and cry throughout the entire county just then, with
+reference to the yeggs who had looted the bank, he could easily imagine
+what had brought these boys here.
+
+Through association with Todd Pemberton, Casper must have learned a
+whole lot with regard to Frank and his cousin. Being an aviator himself
+he would naturally take an immediate interest in boys who had given such
+a good account of themselves in the field of aeronautics. The attempt to
+steal the hydroplane in the first place before they turned to Percy
+Carberry's biplane proved that they knew all about the Bird boys. And
+so, learning of their presence would immediately give Casper warning
+that his hideout was no longer a secret, but that the net of the law
+must be closing around him.
+
+What then?
+
+Would he, like a desperate man, attempt to capture these venturesome
+lads, so as to keep them from informing the authorities at Bloomsbury?
+Either that, or else he would think that, since the game was up, and
+they could no longer loiter in the neighborhood of the aroused district
+in order to carry out the second part of the great scheme, they had
+better take to the aeroplane and vanish from view, leaving no trail
+behind by means of which they could be followed.
+
+Frank had said all this in his mind when he lay there and waited to see
+what would turn up. He felt that they could surely afford to linger for
+some time, if there was any chance of learning whether the yeggmen meant
+to change their plans, or proceed to carry out their original scheme.
+
+All seemed quiet at the farmhouse.
+
+Sallie had come out on the porch, and looked rather disappointed to find
+that the two boys had strangely vanished. She stood there glancing
+around in a puzzled manner for several minutes, and then with a pretty
+shrug of her shoulders, and a pout of her lips whirled about and went
+back into the house again.
+
+"Wow!" said Andy in a low tone, "she's got it in for you, Frank, because
+you dropped out of sight without even so much as saying goodbye."
+
+But the other was thinking of weightier matters than the humor of a
+little coquette. He wondered whether Sallie would run across the
+professor and ask him if he had met two boys down the lane; which remark
+would excite his suspicions, and lead to other questions, now on his
+part.
+
+If nothing happened inside of half an hour. Frank was of a mind to try
+the plan that had come to him--sending Andy off to try and reach some
+other farm where they would have a telephone; while he himself remained
+to keep watch.
+
+That might necessitate taking Sallie into their confidence, for they
+would need to ask questions, and perhaps borrow a horse. On second
+thought Frank was now a little sorry he had not seen fit to tell the
+girl all. She seemed to be fairly clever, and could possibly keep a
+secret. At any rate, the chances of discovery would not be nearly so
+serious as now, when in her ignorance she was likely to blurt out all
+about the boys having been there, without knowing that in so doing she
+might be assisting clever yeggmen to avoid arrest.
+
+The seconds moved along and changed into minutes.
+
+If the professor had come to a window on that side of the house to look
+anxiously around, he must have been careful not to expose himself, for
+though Frank had kept a keen lookout he had failed to see anything of
+him.
+
+It was getting very much of a bore to Andy. He changed his position
+restlessly several times, as though he wished Frank would make some sort
+of a move, he hardly cared what its nature so long as it meant action.
+
+But although Andy could not see it at that moment, there were lively
+enough times ahead of them to please even his impetuous nature. And the
+passage of every minute brought the crisis closer and closer.
+
+Once Frank believed he heard loud voices inside the farmhouse; and at
+the same time some one was certainly hurrying back and forth. But then
+possibly that might be only Sallie, obeying another call from the
+kitchen, where the good woman was so busily engaged with her canning
+operations.
+
+Something like twenty minutes must have passed since the boys made
+their change of base. To Andy it was much longer, for he felt the time
+pass as though it had leaden wings.
+
+Then Frank, watching, saw some one come hastily out of the front door,
+pass quickly down to the path, and move away in the direction of the
+lane.
+
+"He's going off, Frank!" exclaimed Andy, all excitement, just as though
+he half expected that his companion would give the word that meant an
+immediate pursuit.
+
+"Yes; keep quiet, Andy!"
+
+"But he'll give us the slip, don't you see?" persisted the other.
+
+"Let him, then; we can't help it. You can see that he's made quite a
+change in his looks, as though he's thrown the mask off, and doesn't
+expect to play the part of a collegeman and a bug collector any more,"
+Frank whispered.
+
+"That's so, he hasn't got the brown glasses on, and that old butterfly
+net is missing; but Frank, just notice, won't you, how he hangs to that
+little camera-like black box. Say, perhaps I was right after all;
+perhaps Casper Blue is carrying all that stuff cribbed from the
+Bloomsbury bank, inside the same."
+
+The two boys crouched there behind the woodshed and by cautiously
+peeping around the corner could watch the late boarder of the Hoskins
+hurrying down the lane, as though he had received a hasty summons from
+the president of his college demanding an immediate return.
+
+He seemed uneasy and suspicious, for several times he turned his head
+and looked this way and that, as though half expecting to discover some
+person ready to dispute his departure. And Frank also noted the way one
+of his hands had of keeping in the pocket of his short coat; just for
+all the world as though he might be grasping some sort of pistol that
+was concealed there.
+
+
+
+
+CHAPTER XVII
+
+
+SALLIE RIDES BAREBACK
+
+"And now what's our next move?" demanded Andy, who generally found it
+very nice to let Frank do all the planning, though capable of taking
+hold himself when forced to do it.
+
+Fortunately Frank had a great way of figuring out what he would do under
+certain conditions. This gave some sort of assurance when difficulties
+arose; for there was little time lost in fixing things up so as to have
+a programme.
+
+"No use trying to follow after him, to begin with," he declared.
+
+"Why do you say that?" his cousin wanted to know.
+
+"First of all, it would be a bad business, because he's on his guard,
+and a desperate man," Frank went on to explain. "You can see that he's
+ready to pull out a weapon of some sort at the first warning. And we
+settled that we didn't want to fall into the hands of these two bad men.
+So we'll have to arrange things along a different line. And anyhow
+there's no terrible hurry, because I rather guess they've got the
+biplane hidden some distance away from here. It would take half an hour,
+perhaps much more, before they could get out. And we can reach our craft
+in a few minutes, if pushed."
+
+"Yes, that's all so, Frank; but go on, and tell me the rest."
+
+"I was thinking that we ought to try and let our folks know how things
+are going with us, so that if we have to cut out after these yegg
+aviators they'll know where we've gone. Suppose, now, you hunt Sallie
+up, and try to explain it all to her just as fast as you can."
+
+"Who, me? Oh! well, I guess I can do it, if I have to. But what will you
+be doing all that time, Frank?"
+
+"I want to write a message to either your father, or else Judge Lawson,
+whichever she can get on the phone," replied the other, immediately
+hunting in his pockets for pencil and paper, which he made it a habit to
+carry around with him always.
+
+"She--say, do you mean Sallie, Frank?"
+
+"No other. You must coax her to saddle up a horse, and make for the
+nearest neighbor where they've got a phone; get that, Andy?"
+
+"But do you think she will?" asked the other, dubiously.
+
+"I'm dead sure of it," came the confident reply. "Sallie has a touch of
+romance in her make-up; and besides, shell be so mad to think of that
+man deceiving her mother that she'll want to have him caught. Get along
+with you, now, Andy, and fix it all up inside of ten minutes. I'll have
+the message written out by that time, so she can start, if there's such
+a thing as any kind of a horse around this wreck of a farm."
+
+And so Andy, glad at least to have something to do, hurried toward the
+house to look for the country girl.
+
+Left alone, Frank continued to write as plainly as he could what he
+wanted those in Bloomsbury to know about matters in general. He used as
+few words to cover the case as possible, but gave the leading points,
+even to stating his fear that the scoundrels who had robbed the bank,
+and were plotting to also make a descent on the pay-car of the railroad
+that night, had now taken the alarm, and would be off in the stolen
+biplane.
+
+In that event Frank wanted the police in Bloomsbury to know that he and
+Andy had started in pursuit; though what they could do to apprehend the
+rogues of course he was in no position to declare.
+
+By the time he had this finished to his satisfaction he heard voices
+near by, and was glad to see his cousin coming, accompanied by Sallie.
+
+The girl looked duly excited, just as Frank had expected. There were a
+thousand questions in her eyes, but he cut all this short.
+
+"We can't stop to tell you any more now, Sallie, but we promise to drop
+in again after it's over, and explain all that seems queer to you now.
+Here's the message that we want to get to Bloomsbury the worst kind, and
+as quick as you could get on a horse and ride to the nearest neighbor
+who has a phone in the house. You'll do this for us, won't you, Sallie?"
+
+Few people could say no to Frank once he wore that winning smile, and
+Sallie immediately declared that she was ready to do anything he
+suggested.
+
+"To think of that little scoundrel fooling us all, and pretending to be
+a college professor!" she remarked, indignation flashing from her black
+eyes.
+
+"I hope you've got a horse," said Frank, sticking to the business in
+hand.
+
+"Oh! yes; we have one left that might do," Sallie answered.
+
+"Then let's get him saddled right away," Frank went on.
+
+"Can't," she snapped back, "ain't such a thing as a saddle around here
+any more. But I'm a country girl, you know, and I can ride bareback all
+right. A halter's the only bridle I want, Frank. Give me the message,
+and I'll see that it gets to somebody in Bloomsbury."
+
+"And here's some money, Sallie," the other went on.
+
+"What! do you think--"
+
+"There might be something to pay, you know, and we can't afford to take
+chances when there's so much at stake. Thank you a thousand times for
+helping us out, Sallie. Now, please get the horse. I'd like to see you
+started before we pull out, because we may have to chase after these
+fellows in our aeroplane, if they take a notion to fly away."
+
+The girl hastened to lead the way into the stable where they did find
+an apology for a horse, which she immediately unhitched, and led
+outside.
+
+"Hope she doesn't happen to run across that man on the way, because he
+might wonder what was taking her off like that, and do something to turn
+her back. What if he found your message on her, Frank?" and Andy, as he
+said this, turned an anxious gaze upon his cousin.
+
+But Frank shook his head.
+
+"I saw him dodge out of the lane and take to the woods," he remarked,
+"as though he knew of a short-cut across lots to the place where his
+friend and the biplane were hidden. No danger of his seeing Sallie, so
+don't mention it to her. Wait, I'll give you my hand to help you up,
+Sallie!"
+
+But the country girl had led the horse alongside the drinking trough,
+and was on his back in a jiffy, long before Frank could come across.
+
+"Goodbye, and good luck, boys!" she called back, as she gave the horse a
+switch with the end of the halter, and was off at a lumbering pace.
+
+They stood there a minute or so watching the girl flying down the lane.
+She turned around once, and waved her hand at them, while her long hair
+blew behind in a cloud. Frank would not soon forget the sight of Sallie
+Hoskins going to carry the news to a point where it could be telephoned
+in to town--news that would cause a tremendous wave of excitement to
+pass over the whole of Bloomsbury.
+
+"Hurrah! that's done, and well done too, Frank, I say!" exclaimed Andy,
+turning on his cousin with a face that plainly said, "What's next on our
+programme?"
+
+"Before we pull out I guess we owe it to the good woman to tell her
+something of the truth, for I don't believe she knows a single thing
+about it from Sallie or the professor. So come along to the kitchen with
+me, Andy. Then we'll chase off to where we left our aeroplane, and stand
+ready for anything that may happen."
+
+The two of them quickly reached the kitchen door. Inside they found Mrs.
+Hoskins, tired looking and red of face, still busily engaged with her
+canning operations; for peaches were ripe, and tomatoes needing
+immediate attention if she hoped to lay away her customary stock for the
+coming winter.
+
+She came to the door where it was cooler, a look of rising curiosity on
+her patient face. And Frank started in to tell what he thought
+necessary. She was at first much worried to learn that she had been
+innocently harboring a criminal under her humble roof; but Frank soon
+allayed her fears on that account.
+
+He also told her how Sallie had consented to ride over to a neighbor to
+send a telephone message for him, so that the good woman might not be
+worried over her absence.
+
+And now, having done what he considered his duty, Frank began to think
+it might be the part of wisdom for himself and his cousin to consider
+their own affairs, and make for the spot where their hydro-aeroplane
+lay in the field.
+
+"Oh! I do hope they are caught," said the farmer's wife. "Just to think
+of that easy talking little man being a desperate criminal! I shall be
+afraid to stay all alone in the house after this."
+
+"Listen, Frank; somebody's shouting out there. What if both of those
+yeggs are coming back to get us?"
+
+Andy had clutched the sleeve of his cousin's coat when saying this; but
+Frank did not need to be told that something like excitement was bearing
+down upon them.
+
+"Oh! it's Jerry, my husband!" exclaimed Mrs. Hoskins just then, "and he
+seems to be dreadfully excited, too. Listen to him calling to me! I
+wonder what could have happened. What if he's gone and cut himself
+badly, always digging and making holes in the ground, since that silly
+old fortune teller said he would find a mine on the farm. And here he
+comes too!"
+
+Just then a figure came staggering around the corner of the house. It
+was the old farmer, plainly tremendously excited, and although weak and
+almost out of breath from running, trying to tell her something.
+
+"It's there, Jennie--found it, wife--ain't had all my work for nothin'
+I tell you! A vein of hard coal, think, enough to make us all rich! D'ye
+hear that, Jennie, girl, rich! Gimme a drink of water, for I'm nigh dead
+from runnin' to tell you the great news. Who's these boys, wife? Where's
+Sallie at?"
+
+Frank would have liked very much to remain and hear the particulars of
+the farmer's good luck in locating a vein of coal on his property; but
+time would not permit. He only hoped Hoskins was not mistaken, for
+traces of coal had been known to exist around that neighborhood for some
+time, though up to now none had been found in paying quantities for
+mining purposes.
+
+"Come on, Andy, we'll have to be skipping out. Please tell your husband
+all you know about what's happened, Mrs. Hoskins. Hope you have struck
+it rich, sir."
+
+With that Frank hurried off, Andy trailing behind. The farmer stared
+after them as though hardly knowing what to make of it all; but they
+could hear the good woman begin to explain, and had no doubt she would
+be able to satisfy his reasonable curiosity.
+
+For the time being the Bird boys must forget all about what lay in the
+past, because it was the future that should interest them wholly. They
+had reached a point in the hunt where perhaps a sudden change of plans
+would be necessary; particularly if those they followed had taken the
+alarm, and were ready to shake the dust of this section of the country
+from their shoes.
+
+Away from the farmhouse hurried the two young aviators, making as near a
+bee line for the field where they had left their aeroplane as they could
+possibly manage, and all the while searching the sky for signs of the
+other flying machine.
+
+
+
+
+CHAPTER XVIII
+
+
+AN AEROPLANE CHASE
+
+"Here it is, and everything seems all right!" remarked Andy as they
+reached the field, and found the hydro-aeroplane just where they had
+left it.
+
+"Yes, no one has disturbed a thing, which I think is lucky for us,"
+Frank went on to say, as he proceeded to put back the small part he had
+taken away with him, and thus place the machine in perfect condition for
+business.
+
+Andy moved about, looking to see that all obstacles threatening to
+interfere with a successful launching were removed from in front of the
+waiting aeroplane.
+
+So minutes passed, until at least ten had crept by since their coming.
+Frank had everything tuned up, and knew of not the least chance where he
+could improve the conditions of planes or motor, for all seemed to be as
+nearly perfect as they could be made.
+
+Both boys cast frequent glances aloft, and as a rule toward that
+particular quarter where they presently expected to see something
+moving. They were keyed up to a pretty lively pitch of excitement,
+though Frank did not show it half as much as his younger cousin, who was
+always affected this way.
+
+Then suddenly Andy called out:
+
+"There she rises, Frank! Oh! look at them boring up, will you, in that
+corkscrew spiral way! Tell me that Casper Blue doesn't know his
+business; Perc will never get as much out of his biplane as that old and
+experienced aviator means to. Are we going to follow suit, Frank?"
+
+"Get aboard!" came the prompt answer; and it was almost laughable to see
+how nimbly Andy obeyed this order.
+
+Frank lost no time in starting, and they went away with a rush, passing
+over the abandoned field that was now given up pretty much to thistles
+and burdocks, with a sprinkling of iron-weeds.
+
+It was rather rough sledding, to be sure, and as the bicycle wheels
+pounded over the turf the boys had to hold on to keep their seats.
+
+But when sufficient momentum had been acquired, Frank elevated the fore
+plane, and immediately there was the greatest relief felt; for they
+began to rise in the air, and all that terrible bumping stopped for
+good. The change was wonderful, and it felt as though they were gliding
+on velvet.
+
+"We're off!" exclaimed Andy, exultantly.
+
+Frank said nothing. He did not possess quite the same sanguine nature
+that his cousin had. Andy seldom allowed thoughts of possible disaster
+to annoy him, but on the other hand Frank was always trying to head off
+trouble.
+
+He realized that with this launching of their new hydro-aeroplane they
+would be entering upon an extra hazardous game, the outcome of which no
+one could foresee. The two men whom they expected to follow must be
+desperate fellows, who would resort to almost any hazard rather than
+allow themselves to be caught.
+
+And it was not an amateur aviator like Percy Carberry who was opposed
+to them now, but one who had had long experience in the art of
+harnessing a flying machine to do his bidding.
+
+Once they left the ground behind them, Frank started to spiral upward
+much in the same way the others had done. One thing he was glad of, and
+this was the presence of Andy alongside. Casper Blue might be a daring
+air pilot, but with his companion a perfect greenhorn in all that
+pertained to the art, he would be more or less handicapped. A sudden
+incautious movement on the part of the novice might prove the undoing of
+the precious pair.
+
+Once they had risen to a certain height, and the aeroplane was turned so
+as to follow the other air craft, which was speeding away, headed
+directly into the north. Of course, those aboard must know that they
+were being chased. They could not have failed to see the hydroplane, (as
+it is generally called, though the true word to cover it would be
+hydro-aeroplane) even before it left the field, once they started to
+ascend.
+
+"Well, we're off at last!" commented Andy, in a satisfied tone, when the
+course had been taken, and they were following directly after the
+fugitive air craft.
+
+"And let's hope we'll come out of this adventure as luckily as we have
+on other occasions," remarked sober Frank.
+
+"Wonder if Perc happens to be looking this way right now," Andy went on
+to say. "Chances are, that he's got his old field glass leveled, and is
+searching the heavens right along, in hopes of locating his lost
+machine. And say, if he does glimpse this fine parade right now, can't
+you see him turning green with envy to think of another glorious chance
+coming to the hated Bird boys. Oh! my, oh! me! but it would be gall and
+wormwood to Perc. Just as like as not he'd take a fit!"
+
+But Frank was not giving any time to such thoughts as these. More
+serious affairs engaged his attention. When once he left the firm
+footing of the solid earth, and invaded the upper currents where up to
+lately man had never traveled, save in a drifting balloon, he always put
+levity aside, and paid strict attention to business.
+
+The panorama below them was constantly changing, and the boys could not
+but admire the pictures thus presented to their gaze. No matter how
+often one may go up a thousand feet or more above the earth, it is next
+to impossible to weary of the wonderful scenes that keep passing
+constantly in review as the buzzing motor keeps carrying the aeroplane
+along over plain, valley, hills, forests, rivers, and villages or towns
+that chance to lie in the route.
+
+To Andy it was all somewhat in the nature of a grand picnic, for his
+nature was not one to contemplate peril at a distance. Had he and Frank
+just come out for an hour's spin he could not have shown more delight,
+as they went whirling through space, with that rival flier a mile or two
+ahead.
+
+"Do you think we're gaining on them?" asked Andy, after some time had
+elapsed, and the country below began to get unfamiliar, proving that
+they had now come beyond the range of any previous trip taken to the
+northward of Bloomsbury.
+
+"I don't know for sure," replied his cousin. "Sometimes I think we are,
+and then again I'm a little in doubt. Suppose you get the glass out, and
+see what they're doing, Andy?"
+
+"Well, I'm a great one, forgetting all about that bully marine glass."
+As he said this Andy hastened to feel for the article in question, which
+was always kept handy, because there never could be any telling when
+they might want to use it in a hurry.
+
+"Go slow; no use rocking the boat," sang out the pilot, who was forever
+cautioning his companion with regard to quick motions when seated in
+such a delicately balanced contraption as a biplane. "It's a good thing
+that we've got that new fool-proof contrivance that Mr. Wright invented,
+on this machine right now, because only for that you'd be giving me more
+than a few scares when you swing from one side to the other so quickly."
+
+A minute later, and Andy, who had been looking through the glasses,
+spoke again.
+
+"It's a little hard to cover them steadily, because they keep rising
+and dipping just like we are; but I can see that little Casper Blue, and
+the man alongside of him is a much larger chap."
+
+"Of course it's Casper who's piloting the biplane?" remarked Frank.
+
+"Yes, and he knows the ropes, let me tell you. I don't believe there are
+many professional birdmen today who can go ahead of that man. I only
+wish you could take a squint through here, and watch how he manipulates
+the levers, in spite of that stiff arm of his. Only for that, and he'd
+still be in the harness, and doing stunts that'd have Beachy left far
+behind."
+
+"Either that, or else he'd be buried," remarked Frank, drily.
+
+"Oh! well, the less we have to say about that the better I'll feel,
+Frank. If you're going in for aviation at all you've just got to forget
+all about being in constant danger; though I hope I'll never get so I'll
+be reckless like Perc Carberry. But Frank, sure we seem to be picking up
+a little on that crowd. And from the way they keep looking back all the
+while, I guess they know it too."
+
+"Perhaps we are," Frank went on to say, "but if I really thought so I'd
+cut down a peg or two in our speed."
+
+At that Andy set up a howl; at least he voiced his objection.
+
+"Well, that's a queer stunt for you to do, I must say, Frank. Here we
+are chasing after our game, and the very first time we believe we're
+gaining some, you inform me you mean to cut down our speed. Is that the
+way to win the game, tell me?"
+
+"But we don't want to come up with them while we're booming along like
+this, you understand," ventured Frank, as he gently moved a lever just a
+trifle; "this sort of racing is a lot different from what you'd do on
+the ground down there. Suppose we did come abreast of that biplane right
+now, what good would that do us? Could we put out a hand and arrest the
+yeggmen? Wouldn't it be more likely that such desperate men as these
+must be, would try some sort of game looking to disable our craft, and
+sending us tumbling down to our death? No, excuse me from coming to
+close quarters up here with such hard cases. Honest now, Andy, if they
+began to circle around as if they meant to turn on us, I'd think it my
+duty to run!"
+
+"Oh!" exclaimed Andy, "you mean you'd coax 'em to follow us back to
+Bloomsbury, and then give themselves up, is that it, Frank? Oh! but
+you're a cunning chap, sure you are. But on the level now, what is our
+game, if it doesn't mean we're going to overtake 'em?"
+
+"I'll tell you, Andy. We ought to keep following after them as far as we
+can, and in that way learn where they drop. If we get a chance to send
+down an occasional message to be sent on to Bloomsbury so much the
+better. I've written several such out, and have the cord to tie them to
+weights. Given a chance, when we're passing over some town perhaps we
+can get one such message sent on home. Even that would tell them where
+we were, and what the chances are."
+
+"Great game, Frank! Suppose you let me have those messages, and I'll be
+amusing myself getting the same ready to heave, when you say the word.
+We c'n play that this is a war game, and we've been sent out to drop
+bombs on the fortifications of the enemy. We've done it with rocks, and
+we can throw pretty straight; so it seems to me we ought to get some
+sort of fun out of it all around."
+
+Frank told him where he could find the written messages in his outer
+pocket; and for some time Andy was quiet, busying himself in fastening
+some sort of anchor to each piece of paper, sufficient to carry it
+earthward, despite the breeze that at the time might be blowing.
+
+All at once Andy noticed that they were going quite slowly in comparison
+with the pace they had lately been "hitting up."
+
+"What's happening, Frank?" he exclaimed, almost alarmed lest some
+accident had befallen the reliable little motor, which up to now had
+never failed them, no matter how great the call upon its resources. "Why
+are we slowing up? Is there something gone wrong, and must we own up to
+being beaten?"
+
+"Look ahead at the biplane!" was all that Frank replied.
+
+
+
+
+CHAPTER XIX
+
+
+DROPPING A "BOMB!"
+
+"Oh! we've started to swoop down on them! Honest to goodness, I don't
+believe they're more 'n half as far ahead as they were, Frank!" cried
+Andy, thrilled by the sight of the other biplane being so near.
+
+"Just about that," said Frank, quietly, the busy motor having decreased
+its merry hum, so that they could talk without raising their voices very
+much.
+
+"Then you must have let out an extra kink, did you, Frank, when I was
+busy with my bombs?" demanded the other.
+
+"Oh! no," came the answer, "the fact of the matter is, Andy, they have
+dropped off a lot of their speed, and that's how we covered space
+quicker."
+
+"Something gone wrong with Percy's new Gnome engine, then, has it; and
+he blew his horn so about what wonders it was going to do? Huh!" and
+Andy chuckled in his boyish delight.
+
+"No, I don't believe that is the reason they've slackened their speed,
+Andy."
+
+"Trying to save gasolene, then?" pursued the other.
+
+"Hardly that, either, Andy."
+
+"Oh! now I see what you mean, Frank; the poor old greenhorn's got cold
+feet, and is making Casper slow down. He thinks that there's less chance
+of a tumble if the speed is reduced; just as if that could make any
+particular difference."
+
+"I reckon you're away off yet," persisted Frank.
+
+"Then, for goodness' sake won't you tell me what they have cut notches
+out of their speed for; because I'm all balled up, and blessed if I can
+think of another thing! Oh! look at that, Frank! Sure as anything I saw
+a puff of smoke then. There must be something the matter with their
+engine, and they're getting scared. I wouldn't be surprised a mite to
+see them settle right away, and try to land."
+
+"Well, you saw smoke all right, and if you'd listened sharp, you'd have
+heard a sassy little bark at the same time, Andy."
+
+"A what, Frank?"
+
+"Call it a snarl, then. Take up your glasses, Andy, and look; while I
+drop out even a little more of our speed, so we'll fall back further."
+
+Hardly had Andy clapped the glasses to his eyes than he gave vent to an
+exclamation of mingled amazement and alarm.
+
+"That greenhorn is looking this way, Frank, and as sure as goodness he's
+pointing at us right now. Oh! he did something then, for I saw another
+puff of smoke, and it came right from his hand. Why, he's shooting at
+us, Frank! That must be a gun he's got in his hand, and he's trying to
+hit us! If our motor didn't keep up such a constant whirl we might have
+heard the whine of that lead when it went singing past us!"
+
+"Yes, perhaps we might," Frank went on to say, composedly.
+
+"But what can we do?" demanded the other, nervously.
+
+"Nothing more than decrease our own speed as often as they do, and play
+the game of tag backwards. If they get going it too strong, why, just as
+I said before, I'll turn tail, and head back toward Bloomsbury, daring
+them to follow, which you can be sure they won't, because our town is a
+mighty unhealthy place just now for Casper Blue and his pal. There! he
+fired again."
+
+"That makes three times he's tried it, Frank!"
+
+"And I guess he can try the other three without doing us any damage,
+Andy."
+
+"You believe that, do you?" asked the one spoken to.
+
+"Sure thing," Frank replied positively. "Why, it would be one chance in
+ten thousand that he could strike any part of our aeroplane at that
+distance, going as both of us are, and with only a revolver. I'd be
+willing to let him blaze away all day, without being a bit afraid. But
+I'm bound that the two air crafts must keep at least this distance
+apart."
+
+The man in the other airship did fire three more times, but without any
+success whatever. And as though the rival navigator realized that
+Frank's tactics would effectually prevent his coming into closer contact
+with the pursuing craft, he no longer tried to close in, but increasing
+his speed, was quickly about the old distance away.
+
+Whereupon Frank Bird also hit up the pace cautiously.
+
+"That's the ticket!" cried out Andy, presently. "I guess we're holding
+our own again now. For a little while I began to be afraid that they
+were going to just make us take their dust, and give us the merry ha-ha,
+vanishing in the distance. But now I know you've got the twist of the
+thing down fine, Frank, and can haul up on the biplane, or drop back,
+just as you feel like."
+
+For a long time they kept on, neither saying anything, for talking is
+always more or less of an effort when speeding along in an aeroplane,
+with the wind striking one in the face.
+
+Frank had had no time to fully adjust the muffler which he usually wore
+about his neck when about to soar to a dizzy height, so he would have to
+do the best he could; and besides, there was little chance of the other
+aeroplane venturing to bore upward to any unusual degree, all the
+efforts of the bank thieves being directed toward making their escape.
+
+He did have his goggles adjusted, however, which was a good thing, since
+his eyes must have watered very much from the cold air; and this is
+considered an ever present source of danger to one who manipulates the
+levers of a mile-a-minute aeroplane.
+
+"We seem to have dropped a good deal lower, Frank," remarked Andy, after
+another space of time had elapsed.
+
+"Yes," remarked the pilot, tersely.
+
+"And I'm looking now for a good chance to make use of one of my bombs;
+don't you think it's about time to try the scheme out?" Andy continued.
+
+"Just as you feel like," replied Frank.
+
+"Then at the very next town, or place that looks like it had telephone
+connection with the outside world, I'm going to have a try. Might have
+done it when we passed over that last place where the people were all
+waving things up at us, and we could just hear a confused shouting. I
+bet you, Frank, they just thought this was a regular air contest, with a
+prize offered to the winner."
+
+"Well, it is," observed the other. "If we win, we take back our
+prisoners; and on the other hand, if they come out first best they get
+away to Canada with their liberty and their plunder. Yes, it's a race,
+all right, Andy, a test of skill and endurance; and perhaps the best man
+will win."
+
+"Then I know who that will be," declared Andy, enthusiastically.
+
+"Don't be too sure," warned Frank, though it must have pleased him to
+know that he possessed the fullest confidence of his cousin and chum,
+who had been his constant companion on so many expeditions, and must
+understand him like a book.
+
+"What if they keep everlastingly at it, and night comes on?" asked
+Andy, presently.
+
+"Well, there's the moon, though I don't like chasing along this way
+after sundown; and if we're put to it, we've got our fine search-light,
+you must remember," Frank replied.
+
+"There, I believe we're going to pass right over another town, Frank!"
+
+"It does look that way, for a fact," admitted the other. "Casper doesn't
+see any reason why he should bother changing his set course due north
+because he happens to pass a few towns away up here in the northern end
+of the State. Let the people stare all they want to. He's been used to
+having crowds gape at him, you know, and rather likes it. Besides, if he
+gets away, what does it matter?"
+
+Andy prepared himself for the little job he had on hand.
+
+As he had practiced throwing stones from the aeroplane while at a great
+height, just to see how near he could come to hitting a certain place
+far below, so as to ascertain what chance aviators would have of making
+bombs tell in war times, the boy believed he would be able to drop his
+message pretty accurately in some open place, close to where the
+townspeople were clustered. And seeing it fall, some one would be sure
+to hurry over to secure the mysterious object.
+
+"Here goes our old broken wrench, which has been hanging around so
+long!" declared Andy, as, leaning carefully over, he measured distances
+with his eye, and suddenly let the object slip, taking care to make all
+allowances for their speed.
+
+This is more of a trick than most boys would suppose. The next time you
+are on a speeding electric car throw a stone at a telegraph pole just as
+you are passing it, and see how much beyond the missile will alight,
+because of the momentum it received because of the fact of its starting
+from the moving car.
+
+Andy had this pretty well figured out, and knew just when to launch his
+weighted message. He turned his head, and tried to follow it downward as
+well as he was able because of the fluttering white paper.
+
+"It's going straight there, Frank, I do believe!" he exclaimed, as he
+managed to get the powerful glasses up to his eyes, and fairly followed
+the progress of the message, though quickly losing it again. "Yes, and
+the crowd there on the green must see it coming, because already a bunch
+of boys has started to jump that way. They'll find it easy enough,
+Frank. Now, what d'ye think of that for a successful bomb throw?"
+
+"Good enough for you, Andy," was the hearty response. "And we'll have to
+take it as a sign that we're going to come out of this scrape as we
+generally do, with our colors flying."
+
+Frank usually allowed himself to feel the fullest belief in his own
+abilities; at the same time he always wished to avoid over-confidence.
+
+Again time passed on, and the hum of the busy motor was the only sound
+that came to the ears of the two young aviators. They were again making
+nearly full speed; though Andy felt pretty confident that, had it been
+necessary for Frank to coax an additional unit or two of "hurry" from
+the gallant little Kinkaid engine, it would respond to his efforts.
+
+"My! but we must have covered a lot of distance since we started," was
+the next remark from Andy. "How long do you suppose we've been going,
+Frank?"
+
+"Look and see. It was just five minutes after one when we left the field
+on the Hoskins farm, Andy."
+
+"Two hours, Frank; now, what d'ye think of that? Why, I never would have
+believed it if you'd told me. Do you think my watch has jumped on
+ahead?
+
+"No, because we've been hustling right along all of that time, I guess,
+Andy."
+
+"Keeping everlastingly at it, and headed due north all the while," said
+Andy.
+
+"As straight as a die; they never varied their course even a little bit,
+as far as I could see," the pilot declared.
+
+"But we've covered an awful lot of apace, Frank!"
+
+"I guess you're right there," admitted the one addressed.
+
+"And, Frank, if we keep on this way, and nothing happens, we ought to
+sight the big lake away; ahead there inside of 'half an hour more, I
+should think?" Andy ventured to say, and he was thrilled when his
+companion, turning toward him just at that moment, went on to say:
+
+"Perhaps in less time than that, Andy; with the glasses you might
+glimpse it even now!"
+
+
+
+
+CHAPTER XX
+
+
+OVER LAND AND SEA
+
+"Are you joshing me, Frank?" demanded the other Bird boy, as he swung
+eagerly around, so as to fix his glasses upon the far off horizon ahead
+of them.
+
+"I certainly am not, Andy; but please be more careful how you move. You
+gave me a punch in the ribs just then that sent a cold shiver all over
+me. Don't forget that we're not stretched out on the ground under an
+apple tree taking an afternoon doze. Well, what do you see?"
+
+"Frank, I do believe you're right about that lake business!" exclaimed
+Andy.
+
+"Then you can see it?" asked the other, himself more than anxious,
+because of the fact that the fleeing bank robbers who had stolen the
+biplane of Percy Carberry apparently intended to escape over the line
+into Canada, even if to accomplish their purpose they had to daringly
+cross Lake Ontario, many miles wide, a feat as yet only successfully
+done by one or two bold fliers of national repute.
+
+"I sure can; and the way we're heading it's a dead open-and-shut thing
+that we're just going to swing out over the water before another hour
+passes. Whew!"
+
+Andy finished his sentence with this significant exclamation. It was as
+though not only the novelty of the thing but its thrilling nature
+staggered him. The Bird boys had flown under many strange conditions,
+but as yet they had not made a water flight.
+
+There is and always must be a vast difference between passing over the
+land, with its forests, hills, valleys, plains, cities and villages, to
+starting out over a wide stretch of inland sea, with only the tumbling
+waves far below, and new as well as untried currents of air to meet and
+conquer.
+
+More than a few times Andy Bird had expressed a wish to have just such
+an experience. It would be a novelty, something entirely new in their
+line, and which would give them possibly delightful thrills.
+
+But now that the chance seemed opening up before them, he found himself
+viewing it with considerable apprehension, as well as delight.
+
+Of course it made considerable difference that they should be chasing
+after a desperate pair of rascals, rather than simply trying to
+accomplish a flight from United States territory to that belonging to
+Canada. There was always the chance that these men might turn upon them,
+and succeed in doing something to injure the hydroplane, causing it to
+drop into the midst of that inland sea.
+
+Strange how small things often insist upon thrusting themselves forward
+when some sort of peril threatens. The very first thing Andy seemed to
+think about was the fact that they did not happen to have any life
+preservers aboard the craft. Not that there was one chance in a thousand
+they would ever need such things around Bloomsbury, though there was
+Lake Sunrise to be reckoned with; but just then it struck the boy that
+every well equipped aeroplane ought always to carry a couple of rubber
+rings along, which, in moments of dire necessity could be blown full of
+air, and would serve to sustain wrecked aviators until help came.
+
+He even decided to mention this fact to his cousin, after this voyage
+was concluded. It loomed up as large as the Rock of Gibralter just then,
+even as a dream may at the moment of awaking, but which later on begins
+to lose its realistic effect until it seems next door to silly.
+
+"They don't show the least sign of changing their course, do they,
+Frank?" Andy remarked after another spell of time had passed.
+
+"Not that you could notice," replied the other, composedly.
+
+Andy derived more or less comfort from this way his chum had of keeping
+his head even under the most trying conditions. When his own nerves were
+fairly quivering with excitement, it always steadied Andy to turn and
+see that Frank was as cool and calm as though nothing were amiss. More
+than a few times in the past it had caused the more hot-headed Bird boy
+to conquer his own weakness, and do himself credit in some difficult
+feat that became necessary. Example is a splendid thing to lead any boy
+along safe roads. Words may be forgotten in the trying moment; but when
+he actually sees the thing done before his very eyes, it is indelibly
+impressed upon his mind.
+
+"About how long will it be before we get there?" Andy asked again; for
+he was forever wanting to know, when he had any misgivings about his own
+capacity for reaching a reasonable conclusion.
+
+"Do you mean before we leave the land, and commence our voyage across
+the lake?" Frank inquired.
+
+"Yes, that's it--more than half an hour, at the speed we're going now?"
+continued the other.
+
+"Just about, I should say," Frank replied, after carefully measuring
+distances with his eye. "We are up pretty high, and can cover a
+tremendous range, you know, so we first glimpsed the lake when we were a
+long ways off. It may be all of forty miles away right now; and as we
+must be clipping along at the rate of eighty, with the breeze favorable
+behind us, why, half an hour ought to see us there."
+
+Andy fell silent again.
+
+Many times did his eyes travel from the distant water to the earth below
+them; and then follow this up with an uneasy stare at the other
+aeroplane that was flying along far ahead of them. The whole solution of
+the problem of course lay in the hands of the man who controlled the
+destinies of that stolen biplane. Would he really have the nerve to
+attempt a flight across that great body of fresh water, aiming to land
+on foreign shores, from which he could not easily be extradited?
+
+Frank seemed to think that such was undoubtedly the intention of Casper
+Blue, the little man who had been actor, aviator, and yeggman in turn,
+during the course of his adventurous life.
+
+He had already proven beyond any doubt that he was a capable airman,
+even though he did have a crippled arm. Never had the Bird boys seen an
+aeroplane handled with more extraordinary skill and dash than was the
+one that had been stolen from the hangar of Percy Carberry.
+
+No, unless something unexpected happened to disturb the plans of the
+fugitive yeggmen inside the next half hour, they plainly meant to launch
+out on a voyage across the lake, possibly thousands of feet above its
+surface, and perhaps among the very clouds.
+
+Not once did Andy dream of asking his cousin whether in this event he
+considered it the part of wisdom for them to follow the men who were
+doubly risking their lives in this mad effort to escape with their
+booty.
+
+He knew Frank only too well to doubt his willingness to undertake such a
+trip as this. In times gone by, and especially when they were down in
+South America with their aeroplane, seeking Professor Bird, who had been
+lost, with the balloon in which he was conducting experiments on the
+isthmus, they had bravely faced just as serious perils as this promised
+to be; yes, and wrenched victory from the jaws of apparent defeat more
+than once.
+
+Hence, it was a foregone conclusion that if Casper Blue attempted the
+difficult feat of flying across the lake, after being in the air several
+long hours, the two Bird boys were determined to keep following after
+him. It seemed like a game of "conquer," which Andy remembered so well;
+where the rival aviator dared to go they must follow, or acknowledge his
+superiority as a bold airman, something neither of them felt like doing.
+
+Frank had figured it all out while he was speeding along so smoothly.
+
+So far as he could see everything was working as easily as could be; the
+motor never missed, and was running like a charm, just as though it
+could keep this up everlastingly in an endurance test. And besides, the
+wind, what there was of it at present, seemed to favor them most
+positively, because it was at their backs.
+
+So far as appearances went the conditions were ideal for the crossing of
+the great lake that was now showing up ahead most grandly.
+
+Andy drew in big breaths, and tried to keep from quivering with delight,
+mingled with just a little nervousness. Here was a new experience about
+to come to them; and one that they were not apt to soon forget. As a boy
+Andy delighted in novel sensations; and as an ambitious aviator he
+yearned to experience all the glorious possibilities that open up to the
+one who has the pluck and the nerve to attempt them.
+
+They could see a town in plain sight, though they had gradually ascended
+since Andy cast his bomb so successfully. Perhaps his little game of
+opening communications with the earth below had been observed by one of
+those in the leading airship; and in order to prevent another attempt,
+this gradual ascent had been immediately carried out.
+
+But Frank fully expected to see the rival aeroplane begin to drop as
+they drew near the border of the fresh water sea. Since just then there
+was no squally wind near the surface of the water, which they wished to
+avoid by remaining thousands of feet high, the chances were that Casper
+Blue would soon commence to use his deflecting rudder, and begin to
+descend in wide spirals; or else, with the daring of an old and skilled
+air navigator, shut off power, and volplane down in a slant that would
+thrill any spectator as nothing else could, until the required distance
+had been covered, when he would again bring the shooting aeroplane on a
+level basis, and resume his forward progress.
+
+Whatever he did Frank was ready to imitate.
+
+He had the fullest confidence in his own ability to accomplish the most
+difficult feat that would be required.
+
+"Steady yourself, now, Andy," he cautioned; "because they're going to
+change the going pretty soon, I take it. Better put that glass away, and
+be ready to give me a lift if I need it. Watch and see if they don't
+drop down closer to the water. It would be a wise thing to do, I take
+it; for in case of accident the spill wouldn't be so bad."
+
+"All right, Frank, just as you say," replied the other, accustomed to
+looking to his cousin for the words of command when an emergency or a
+crisis came along.
+
+He fastened the precious glasses in their rigid case, where they would
+be safe so long as the aeroplane remained above the surface of the
+water, or did not fall to the ground in a serious wreck.
+
+Then Andy paid attention to a number of small but very important matters
+that had always been given over into his charge at times like this. The
+Bird boys had been comrades so long that they worked together like a
+well oiled machine. The ball team that has played in company for a
+season can accomplish feats that would be utterly impossible to a nine
+that had been brought from various clubs, even though each player might
+have been a star in his respective team.
+
+So it was with Frank and Andy; they had grown to know each other's
+points so well that when the moment came it often seemed as though they
+instinctively formed a single unit, with that exceedingly bright brain
+possessed by Frank doing all the piloting of the combination.
+
+They were all ready for the business in hand long before the border of
+the big water was reached. Frank had looked around him several times,
+and his cousin seemed to know instinctively that he was endeavoring to
+decide as to whether the wind was apt to hold as it chanced to be at the
+time; or increase in velocity, should they drop to lower levels.
+
+It was rather awe inspiring to see that vast gulf of glistening water
+stretching as far as the eye could reach in three directions, north,
+east and west. From the high altitude which they still occupied, they
+could not tell whether the lake was calm, or waves rolling along its
+surface. The westering sun glittered from its bosom as though it might
+be streaked with gold, and altogether it was a sight that neither of the
+boys would soon forget.
+
+To Andy in particular it appealed with vigor. His nature was more
+inclined to worship at the shrine of the romantic than would be the case
+with the practical Frank. To Andy that vast sheet of water seemed
+mysterious, profound, filled with secrets of argosies that were launched
+on its breast centuries ago, when only the bark canoes of the red men
+had ever been wedded to its waters. In imagination the boy could even
+then see the barques of the early explorers, those bold men who had
+pushed thither from across the ocean, and risked their lives in order to
+learn what the New Country held for brave hearts.
+
+Perhaps, had he still gripped the glass in his hands, and cared to look
+earthward before leaving the shore for that adventurous cruise, Andy
+might have seen many a group of wondering people all watching the flight
+of those hurrying ships of the upper air currents, and even waving hats
+and handkerchiefs in the endeavor to attract the attention of the bold
+navigators, whom they supposed to be engaged in a race for a wager.
+
+But there was now no longer time for anything like this, and all their
+attention must be concentrated upon the one thing that meant so much to
+them--the safety of the delicate craft in which they were now about to
+entrust their very lives for a voyage, the like of which few airmen had
+ever entered before.
+
+Already had the other aeroplane sailed away, and was even now hanging
+over the inland sea, that lay fully four thousand feet below, its
+further shore hidden in what seemed to be a cloud, though it might prove
+to be a rising fog, fated to engulf both pursuing and pursued air craft
+in its baffling folds, and turn the comedy of the race into a tragedy.
+
+"Goodbye old land!" sang out Andy, when they seemed to suddenly pass out
+over the water, leaving the shore of New York behind.
+
+Frank said not a word, but no doubt his feelings were just as strong as
+those of his companion. And so they had now embarked on what seemed to
+be the last leg of the strange chase, with the future lying before them
+as mystifying as that fog bank lying far away to the north.
+
+
+
+
+CHAPTER XXI
+
+
+OVER THE BOUNDARY LINE
+
+It was with the queerest possible feeling that Andy saw the land
+slipping away, and realized that they were at last launched upon the
+water part of the voyage.
+
+It seemed as though they had cast loose from their safe moorings, and
+were adrift upon an uncharted sea. When comparing his feelings with
+other aviators in later times, he learned that every one of them had
+experienced exactly similar sensations the first time they passed out of
+touch of land, and found the heaving sea alone beneath them. It was a
+sort of air intoxication; Andy even called it sea-sickness, though
+doubtless most of it came from imagination alone.
+
+"There they go, Frank!" he called out, not ten minutes later.
+
+The land was far behind them now, and still in the other three
+directions they saw only the level surface of the great lake.
+
+His exclamation was called out by a sudden change in the method of
+advance adopted by those in the leading aeroplane. Instead of keeping
+along in a direct line the biplane had uptilted and was now shooting
+downward in what seemed a terribly perilous way; just as though the pair
+of precious scoundrels had taken a notion to end the pursuit by seeking
+a plunge into the water.
+
+But both boys knew differently, and that this was only a volplane,
+adopted by experienced and rash aviators as a means of reaching the
+lower air currents more rapidly than by slow spirals; or else undertaken
+when having engine trouble that threatens destruction.
+
+Frank was ready to follow suit. It would not be the first time by long
+odds that the Bird boys had accomplished this speedy method of
+descending from high altitudes. There was always an exhilaration about
+the clever trick that appealed irresistibly to their natures; though
+Frank would never have attempted it unless reasonably sure that the
+conditions were favorable for success.
+
+"Hold fast, Andy!" he remarked, quietly.
+
+The hum of the motor suddenly ceased, and with its cessation the
+hydroplane was turned head-on toward the surface of the lake, four
+thousand feet below.
+
+Down they went, plunging toward what seemed to be instant destruction;
+but a steady hand was at the wheel, and the pilot knew just what was
+necessary to do at the proper instant in order to bring this rapid
+descent to a stop, and right the airship on a level keel.
+
+But there was no time just then to note what the rival aeroplane might
+be doing. Whether the experienced airman in charge managed to stop that
+downward plunge before reaching the surface of the lake; or failing went
+to his death, was a matter that did not concern them now, since they had
+their own affairs to look after.
+
+To tell the truth, Andy's heart seemed to be in his throat as they made
+the drop. As yet they had never tried out the new hydroplane in a trick
+of this sort; and hence really did not know just how it might act;
+though Frank must have been pretty confident, else he would never have
+attempted it.
+
+Given the choice the Bird boys would easily have decided to descend from
+their lofty height by means of the much safer if slower "spirals," each
+circle seeing the aeroplane lower than before. But since the reckless
+man in the other air craft led the way, Frank had chosen to follow. He
+believed that he could accomplish any feat that was possible to Casper
+Blue, especially now that the old air navigator had a handicap in the
+way of a crippled arm.
+
+The water seemed rushing up to meet them; so it looked to Andy, whose
+anxious gaze was fastened upon the lower depths, as they dipped down in
+that terrific swoop. But then, he had seen the same thing when over the
+land, so that in itself this did not daunt him.
+
+"Oh!"
+
+That exclamation seemed to be forced from Andy's lips when he felt Frank
+give a quick turn to the lever that caused the deflecting rudder to
+again resume a normal position. The drop of the aeroplane was brought to
+a gradual stop, and when immediately afterwards the buzz of the motor
+announced that the propelling power was again at work, it was no wonder
+that the nervous boy expressed his relief by giving vent to that cry.
+There was a world of gratitude back of that word, it can be set down as
+certain; for no matter how confident Andy might have been concerning his
+cousin's ability to accomplish wonders, the new hydroplane was as yet
+untried in many things.
+
+Now he even dared take his awed gaze from the heaving waters beneath the
+framework of the aeroplane, and give a thought to those whom they had
+chased overland and water for nearly three hours.
+
+"Bully for Casper Blue! He made the riffle too! he's all to the good!"
+was the way the impulsive Andy announced his discovery to Frank, who
+just then could not spare even a second to take his attention off the
+working of the motor.
+
+After all, it was not so very strange that the boy should express
+himself in this way. True, the man he was praising was now a criminal,
+and they sought to effect his arrest in some manner as yet vague and
+uncertain; but it was not in this light Andy viewed him just then. As a
+birdsman Casper Blue had proved that he still possessed the nerve and
+skill to direct a daring flight, and that all the tricks known to
+celebrated fliers were at his finger's ends.
+
+Any one who has risked his life up among the clouds must always respect
+such a valiant spirit, even though aware that the object of his
+admiration has in other ways forfeited the esteem of all honorable men.
+
+There was the biplane moving along on a level keel, and not more than
+two hundred feet above the water. And still the course held due north,
+showing that the desperate men who were thus fleeing from arrest had
+not the slightest intention of changing their plans.
+
+"What do you think of her now, Andy?" asked the pilot, with a quiver of
+pride in his voice.
+
+"You must mean our new craft, I take it, Frank; and I want to say that
+she's a real peach, if ever there was one. We never volplaned as easy as
+that in our lives, and that's a fact. Why, it was like sliding downhill
+on a sled, with never a single bump on the way. I could do that all day,
+and never get enough."
+
+"Dangerous business, all the same," remarked Frank; "and doubly so when
+you don't happen to be well acquainted with your machine. A single
+hitch, and we would have struck the water at a terrible rate."
+
+"But all the same we didn't, Frank," the other went on, jubilantly; for
+now that this peril was of the past Andy could be his old self again.
+
+"And they did just as well," remarked Frank, always ready to give
+credit, even though it might be to a rival, for his nature was generous
+to a fault.
+
+"Well, that biplane was easier to manage than our hydroplane, with the
+pontoons underneath," Andy went on to say, grudgingly; for no one could
+ever convince him that Frank had his superior as an air pilot; and he
+would sooner go up to a record height of fifteen thousand feet in
+company with his cousin, than accompany the most famous man living.
+
+"It looks like we might be booked for Canada, Frank," he went on to say,
+a minute later, after they had fallen into the new "stride" comfortably,
+and were rushing forward on a level stretch, with the surface of the
+lake close at hand.
+
+"I shouldn't wonder," came the noncommital reply.
+
+Now, Andy knew his cousin like a book. Perhaps it was something in the
+words; or on the other hand there may have been an undercurrent of doubt
+in the way Frank spoke, that aroused the other's suspicion.
+
+"What is it, Frank?" he demanded, "for I reckon you see something that
+is all a blank to me? Take me in, won't you?"
+
+"Oh! I was wondering what would happen if they had an accident away out
+on the lake, that's all," admitted the other.
+
+"Well, in that event I guess it'd be up to the Bird boys to play the
+rescuer act for all it was worth. But Frank, do you think this new
+machine of ours could climb up off the water with four aboard? Wouldn't
+that be the limit?"
+
+"To tell you the truth, Andy, I don't know, because we've never had the
+chance to try it out. With only two of us aboard you know how easy she
+climbed; three passengers she could hoist, but four might faze her. We
+can only wait and see, if ever the chance comes to make the test."
+
+"But you wouldn't hesitate about trying the same, I know, Frank?"
+
+"Of course not," the other remarked, confidently, "and especially when
+it might mean life or death to a poor fellow away out here on the lake
+miles from land. If we couldn't rise, we might still be able to float
+like a duck, and hope that some boat would come to the rescue. In the
+end that would be just the same."
+
+"Do you know," said Andy, "I saw a tug pulling out at full speed from
+the little city on the shore of the lake, close to where we left land;
+and somehow I seem to have an idea they know all about us, and mean to
+keep in touch with us as long as they can, to be handy in case of
+accident. Perhaps, now, my message was phoned to Bloomsbury; and seeing
+about where we must be heading if we kept on a northerly course, they
+have wired up here to watch out for us. How about that, Frank; am I
+silly to figure that way?"
+
+"I don't see why you should be, Andy. In fact, just as soon as you
+mentioned about the tug I began wondering if somehow these good people
+didn't know who we were, and what we were chasing after the biplane
+for."
+
+They had to speak unusually loud in order to hear, even though their
+heads were close together at the time; for the propellers were whirling
+with a hiss, and the hum of the motor added to the noise. But then, it
+was all a merry racket that chimed in well with the spirit of the young
+aviators; and which gave them much the same pleasure that the splash
+through the foaming water of a ninety-foot racing yacht must awaken in
+the heart of an enthusiastic skipper, when he knows that every sail is
+drawing to the limit, and all things are working well.
+
+"Have you figured out what we ought to do if by good luck we all get
+over to the other side, safe and sound?" went on Andy.
+
+"We'll have to leave that," was the reply Frank made. "No use crossing a
+bridge till you come to it, you know, Andy."
+
+"But they'll be safe then, Frank?" "I'm afraid so, even if I don't
+pretend to be up in all the international law connected with the
+passing of a thief from United States territory to Canada."
+
+"But ain't that a measly shame?" ejaculated the indignant Andy, "to
+think of a robber being able to turn, and put his fingers to his nose
+and wiggle 'em at us, just because he happens to cross the boundary
+line. It oughtn't to be that way, Frank!"
+
+"Of course not; and I guess lots of abler chaps than you and me have
+thought the same; but there it stands, and the two countries won't get
+together to change the law even a little bit. Every year dozens of
+embezzlers light out across the border for Canada, where they can spend
+their money, and start for Europe if they feel like it."
+
+"Then perhaps it's the money they take with 'em that the Canadians like;
+though I wouldn't like to believe such a thing," ventured Andy.
+
+"Hardly that; but both countries are jealous about bringing back
+political offenders, I've heard Judge Lawson say more than once. But
+don't let's talk any more'n we can help, Andy. We've got our hands full
+as it is watching those fellows, and keeping ready to match any trick
+they try."
+
+This served to give Andy a new cause for concentrating his attention on
+the fleeing biplane once more. As yet the pilot of the leading airship
+had not diverted from his set course; but if he was as tricky as they
+had reason to believe, there was always a chance that he might engineer
+some scheme, sooner or later, looking to shaking off his pursuers here
+in the middle of the great lake, where possibly no mortal eye could
+witness the deed, so as to appear against him later on.
+
+With the wind aft, of course the further they advanced the larger grew
+the waves; and Andy noticed that they were now of quite respectable
+size; though being directly above, he could not tell much about it, only
+that in many spots he saw the white caps breaking, and this served as a
+pointer.
+
+Would the hydroplane be able to ride such a sea in safety, in case
+necessity compelled them to alight upon its swelling bosom?
+
+Frank did not seem to doubt it, for he had the utmost confidence in the
+ability of those aluminum pontoons to sustain a great weight without
+sinking. What they would possibly have to fear more than anything else,
+was the chance of a capsize; and of course this would spell disaster as
+much as anything else.
+
+Once they overtook a sailing schooner that was speeding along with a
+fair breeze. Possibly those aboard thought they were making most
+excellent time, with everything in their favor, but the aeroplanes sped
+past the vessel almost as though it were a toy craft.
+
+A faint cheer was heard from those aboard who could be seen wildly
+waving head-gear, or red handkerchiefs; just as though what they
+considered a novel air race had been engineered especially for their
+amusement.
+
+When Andy took occasion to look backward again in a short time he was
+amazed to discover how far distant the sails of the schooner seemed. And
+it was this incident more than anything else that gave him to understand
+just what amazing speed the aeroplanes were putting in their mad race
+across the inland sea.
+
+But while up to now the voyage had been without incident worthy of
+mention, or accident of any kind, it could hardly be expected that this
+immunity would continue to the very end. The splendid good fortune that
+had hovered over both airships was apt to be brought to a sudden
+termination at any moment, as Frank well knew.
+
+
+
+
+CHAPTER XXII
+
+
+A HYDROPLANE RESCUE
+
+All this while Andy's nerves had been strained to a high pitch. And it
+was not at all singular, therefore, that when the anticipated event came
+to pass he gave vent to a loud cry.
+
+"Looky! Frank; they're going to drop! Something must have happened to
+the motor or else a plane guy broke to cripple them!" was what he almost
+shrieked.
+
+Frank was watching, though he had not uttered a single sound. He knew
+that the half expected crisis was now upon them. At least his heart
+found cause for rejoicing that if an accident had to happen, it affected
+the other aeroplane rather than their own. It is much easier to bear
+watching another's troubles than to bear your own.
+
+What Andy had said was the truth, for the craft they were chasing after
+had taken a sudden dip, and was fluttering downward.
+
+If you have ever seen a crippled bird trying hard to keep afloat, you
+can have a pretty good conception of how that biplane dropped lower and
+lower toward the water.
+
+That it did not fall like a lump of lead spoke volumes for the
+magnificent management of the pilot who controlled the levers, and whose
+long experience had taught him just what to do in such a dreadful
+emergency as this.
+
+Frank had instantly cut off much of their power, though they still
+continued to sweep onward toward the place of the catastrophe, and were
+rapidly drawing near the falling aeroplane.
+
+Both boys stared at the terrible picture of the descending biplane
+nearing the heaving surface of the lake. It seemed very serious indeed,
+for any one to drop in this way; and yet how much more dangerous to fall
+upon land, where the wrecked aviators would stand a good chance of
+broken limbs, even though they saved their necks.
+
+Then a cry from the impulsive Andy told that the biplane was in the
+water. If the engine had broken loose there was a pretty fair chance
+that the craft with its long extended planes would float, and even bear
+up the two aviators. Perhaps the quick-witted Casper Blue had looked out
+for just such a contingency, and found a way to free the framework from
+the dead weight of the motor.
+
+Frank had all he could do to manipulate his own craft, for in order to
+alight successfully, even as a wild duck does, he must make a turn, and
+head up into the wind.
+
+That meant the passage of a certain length of time; and meanwhile who
+could say what might not be happening to the imperiled men?
+
+On the other hand, Andy could not tear his horrified gaze away from the
+wreck of the fallen biplane; and it was really upon him that the
+navigator must depend for his information as to how things were going.
+
+Fortunately Andy could talk as well as look; no matter if his tongue did
+show a decided inclination to cleave to the roof of his mouth with
+horror, he managed to find a way to make it wag.
+
+"It floats, Frank, sure it floats!" he ejaculated, presently, even as
+the other was in the act of making a sweeping curve, and skilfully
+ducking a squally puff of wind, turn back over the course they had just
+covered, to sink down upon the heaving waters when he found the chance.
+"Yes, they must have kicked the engine overboard. That makes three poor
+old Perc has lost, don't it? There they are, both of 'em, squattin' in
+the middle of the wreck, just as cool as you please, awaitin' for us to
+call in and take 'em off. Hope it don't sink before we c'n get back. If
+either one can't swim they'd go down like a stone. Now you're around,
+Frank; and we're heading straight for the place. Hurrah! Hold hard there
+and we'll lend you a helpin' hand!"
+
+He even waved toward the two men by now pretty well submerged in the
+water, but who seemed to be still clinging to the floating aeroplane, as
+though recognizing that their position might be much more desperate
+should they cut loose from that buoy.
+
+Frank was watching closely, to pick out a favorable opportunity to
+alight. Well did he know the chances he and his chum were taking in thus
+dropping upon the heaving surface of such a tremendous body of water as
+Lake Ontario. It was true that they had successfully performed this
+operation many times with their other hydroplane, but that was upon the
+much calmer waters of little Sunrise Lake, where the sea never arose
+heavy enough to imperil the floating aircraft. It would be much more
+perilous now, under these conditions; but Frank had made up his mind to
+attempt the rescue of those in the water, and was not to be easily
+daunted.
+
+When the right opening came he allowed the hydroplane to dip gently
+down, making sure that there was as little violence as possible in the
+drop, because of the chance of burying the forward propeller under; or
+losing his balance, upon which so much depended.
+
+Andy knew what he was expected to do, and was nimbly endeavoring to
+swing his weight this way or that after they had launched on the waves,
+so as to keep the pontoons on an even keel, and prevent a disastrous
+spill. For once this occurred, the hydroplane would be of little more
+advantage than the wrecked biplane, which barely upheld the two clinging
+men, and was evidently sinking lower under the strain, with each passing
+second, until the end must be in sight.
+
+At least they had dropped safely. The pontoons had been cleverly
+adjusted so as to bear a just proportion of the weight, and they did
+their duty faithfully and well in this great crisis.
+
+Of course, the next thing was to try and work closer to the sinking
+biplane, and take the men aboard, one at a time. That would be a risky
+proceeding, requiring all the skill that Frank could bring to the front.
+
+In the first place he had chosen to drop beyond the wreck of Percy's
+biplane. This he had purposely done, in the hope that the wind might
+drift them down upon the other aircraft.
+
+A minute's observation convinced Frank, however, that if they waited for
+this to happen, the frail support which was buoying Casper Blue and his
+mate up would have gone under long long before they could get within
+touch.
+
+Already the second man was shrieking for them to hurry, because he could
+feel himself slowly but surely sinking; and he let them know that he
+could not swim a stroke.
+
+Plainly, then, they must do something to quicken things, if they meant
+to be of any service to the two rogues, thus brought to a sudden halt
+just when escape had seemed most bright.
+
+Frank remembered his engine. But would it work under such strange
+conditions as this? He quickly saw that the rear propeller was half
+buried in the water; and if it turned at all would have to churn things
+just as though they were in truth a queerly fashioned boat, instead of
+an airship, intended to mount to lofty heights, and vie with the eagle
+in his circling above the clouds.
+
+Quickly, then, he started to make the trial; and Andy, seeing his
+movement, comprehended what he must have in mind; for he swung out in
+such fashion as to preserve a balance, and thus help things along as far
+as lay in his power.
+
+What a sensation of relief that hum of the faithful little Kincaid
+engine brought in its train, as it once more took up the burden of its
+busy song. Why, it seemed to Andy as though he could almost shout in
+sudden relief, when he heard it first, and saw the water flying from the
+partly submerged propeller.
+
+But Frank was wise enough not to turn on full speed, knowing what a
+terrific strain this condition of affairs must be upon the entire
+fabric, flimsy at best; and if anything gave way it was all over with
+them; for if a chain is only as strong as its weakest link, a
+heavier-than-air flying machine certainly comes under the same category.
+
+"We're going it, Frank!" shouted Andy, when he saw that their speed had
+increased several hundred per cent, and that they were now heading
+straight for the partly submerged air navigators.
+
+It never occurred to Andy that either of the men might offer the
+slightest objection to being rescued. Frank looked a little further
+ahead; but even he could hardly believe that Casper Blue would prefer
+to drown rather than be saved.
+
+What Frank was really concerning himself about more than anything else
+was how he could stow away the two fellows, once they found a chance to
+climb aboard the hydroplane; and whether he could get enough impetus
+from the engine with such an unusual load, to rise from the water, once
+he elevated his planes.
+
+"Hurry! oh! Hurry! I'm going down!" cried the larger man.
+
+Casper never said a word. Possibly, being a swimmer, he did not feel the
+same degree of terror that his companion experienced. Then again, he may
+have been coolly figuring on how he might turn the rescue to his own
+advantage in some way; for he seemed to have that little black box slung
+over his back by means of the strap; and it was easy to understand that
+it must, as Andy had guessed, contain something of considerable more
+value than a mere camera.
+
+Now they were closing in. The hydroplane round-up was being carried out
+in what seemed to be a successful manner; and if all went well during
+the next few minutes the drifting fugitives would be hauled aboard by
+Andy, who stood ready to act the part of gallant rescuer to the king's
+taste.
+
+It happened by mere accident that they were on that side of the sinking
+wreck where the larger man clung; and this was just as it should have
+been, since he seemed more in need of help, at least in far greater
+distress of mind, than the smaller man.
+
+"Get ready, Andy!" warned the pilot; "I'll shut off the power if it
+seems best; but it may keep us on a more even keel if we move along."
+
+"I'm going to try and get hold, and then pull him aboard; hope we don't
+have a spill, though!" the other sent back, as he braced himself as best
+the conditions allowed.
+
+Frank gave one little turn to the rudder, for he was afraid that they
+might get past without coming in reach. Then the gap was completed, and
+Andy, leaning over, managed to get hold of the sinking man by the collar
+of his coat.
+
+There was where the greatest danger lay.
+
+When a man or a boy has the terror of drowning pressed in upon his
+heart, he is usually a most unreasonable being; and will even clasp his
+intended rescuer about the neck, and prevent him from carrying out his
+plans that might have worked well only for this blundering.
+
+"Take it easy, you!" yelled Andy, as he saw the man clutch hold of the
+framework of the hydroplane, and struggle desperately to work his way
+along to where the others were. "If you give us half a chance we'll save
+you, all right; but upset us and well all like as not go down together.
+Slower, I tell you, or I'll give you this to teach you something. This
+ain't an ocean liner, d'ye understand. Let up!"
+
+Whether it was the excited words of the boy, the manner in which he
+flourished that short steel bar, or his ferocious looks, that brought
+the excited man to his senses no one could ever say; but he did relax
+some of his frantic movements and began to act more within reason.
+
+This presently gave Andy the opportunity he wanted to stretch out a
+helping hand, and get a firm grip of the other's coat collar; after
+which he exerted himself to the utmost to assist him to climb aboard.
+
+What with his own weight, and the fact that his clothes were dripping
+with water, the addition of the new passenger caused the delicately
+constructed and already heavily freighted hydroplane to sink more
+deeply.
+
+Frank, in that supreme moment realized that it would be almost a
+hopeless task to think of once more flying, with such a cargo aboard.
+Possibly the best they could do would be to keep afloat, and hope that
+the pursuing tug might come up with them before the darkness set in;
+and they could all be rescued.
+
+Now that the first of the imperiled airmen had been hauled aboard, there
+remained but Casper Blue himself. The wreck had not as yet sunk wholly,
+since, relieved from the weight of the heavy man, it seemed to possess
+enough buoyancy to remain on the surface of the water. But this could be
+only for a short time; the planes would soon be thoroughly soaked, and
+then the end must come, when the clinging man would find himself
+deprived of all support, and must swim or go down.
+
+He had something of a half defiant look on his small sunburned face, as
+he saw Andy trying to draw the wreck toward him, with the evident
+intention of giving him the next opening. Perhaps he was half inclined
+to take his chances as he was, rather than allow these two boys to make
+him a prisoner.
+
+Frank had his mind made up. He figured that both men had been long
+enough in the water to have their weapons well soaked, so that they
+would be in no condition to threaten their rescuers.
+
+"The box, make him pass it up first, or we leave him here!" he called
+out to Andy, as the latter was about to reach out and lay hold of the
+smaller man.
+
+Casper Blue glared almost savagely at Frank. For the moment the Bird
+boys even thought the enraged man would hurl defiance back at them, and
+declare that he preferred taking his chances with the wreck rather than
+give up the spoils.
+
+But just then it happened, fortunately, that the remnant of the biplane
+began to settle more positively than before, warning him that it was
+folly to pin any hope on its buoying him up more than a few minutes at
+most.
+
+"Here, take it!" he snarled, handing up the box; which Andy immediately
+passed over to his cousin before he would stretch out his hand again to
+render the defeated yeggman any assistance.
+
+Then Casper Blue was drawn aboard, and lower still sank the buoyant
+hydroplane, until both propellers were almost wholly submerged beneath
+the surface of the heaving billows that came rolling on, steadily and
+remorselessly.
+
+
+
+
+CHAPTER XXIII
+
+
+BROUGHT TO BOOK--CONCLUSION
+
+"What time is it, Frank?" asked Andy, who w as breathing very hard after
+his recent exertions in helping both men to get a footing on the
+hydroplane.
+
+"I think pretty close to four o'clock," replied the other, though he
+made no attempt to take out the little nickel watch, he always carried
+nowadays.
+
+The fact of the matter was that Frank did not dare trust Casper Blue. He
+could see that the little man was a desperate character, and that he did
+not view the prospect of being made a prisoner, and taken back to
+Bloomsbury with any great show of enthusiasm. In fact, it was a most
+unpleasant proposition for the bank thief to contemplate at all.
+
+And so Frank was watching him closely. He had, before starting on this
+dangerous air flight that had ended so far from home, and under such
+singular conditions placed a little pistol in his pocket, though hardly
+under the belief that he would have any occasion to make use of it.
+
+But he was now determined not to let this man get the upper hand. He
+could see that various desperate plans must be forming in that scheming
+brain of the one-time aviator, and now yeggman; and Frank was constantly
+on the watch so that he might not be caught napping.
+
+"Four o'clock!" repeated Andy; "that would mean at least two more hours
+before the sun set, wouldn't it; and even after that it might stay light
+enough another hour for them to see us if they steamed along?"
+
+"You mean the people aboard that tug, don't you?" asked Casper Blue,
+sneeringly.
+
+"Yes, they seemed to be chasing after us, and I only hope they do keep
+moving," replied Andy, "because they must have seen the accident, that
+is if they had any sort of a marine glass aboard, which I reckon they
+did."
+
+"And I suppose, now, you think there might be officers aboard that same
+tug?" the other went on to say.
+
+"Oh! we don't know anything about that," Andy remarked, carelessly. "But
+if they came along after a while it'd save us from a lot of worrying.
+Just think, if the night set in, and the four of us weighing this poor
+old hydroplane down like we are what a time we'd have before another
+morning came around."
+
+"It would like as not rise, if there was only two aboard, wouldn't it?"
+Casper asked quickly, and before Andy could understand what his question
+meant he had replied to it.
+
+"Sure thing, Frank and myself have left the water many a time in a less
+powerful hydroplane than this, haven't we, Frank?"
+
+"Well, turn about is only fair," said Casper, fiercely.
+
+"Why, I don't understand what you mean by that," complained Andy.
+
+"Two's company, four a crowd; so please skip out of this, both of you
+boys. My pal and me can run this shebang, and just take my word for it,
+we mean to do the same. Get that straight, both of you? Now, jump, I
+tell you, and lively, or I might be tempted to let her go; and that
+would be a shame after the way you rescued the two of us. Overboard with
+you!"
+
+Andy gaped when he saw that the man had actually drawn out a revolver,
+and was aiming the same directly at him.
+
+"Here, quit that, will you?" he demanded, feeling a flush of alarm, for
+even a seasoned veteran of many battles does not fancy having such a
+threatening weapon thrust under his nose.
+
+"Jump, then, d'ye hear, consarn you?" shouted the man, menacingly waving
+his pistol; "take a header, and over you go, both of you! I'm a
+desperate man, and not to be fooled with. P'raps you c'n keep afloat on
+that wreckage long enough for the tug to come up, and pull you in. But
+no matter, over you go, one way or the other!"
+
+"Just wait a bit, Casper," said a quiet voice, and turning his head the
+man saw that Frank had him covered very neatly, "you must know that your
+weapon has been soaked, and wouldn't go off, the chances are. Besides, I
+don't believe there's a single cartridge in the chambers. Throw it
+overboard, do you hear, Casper, or I may be tempted to cripple that
+other arm of yours!"
+
+No doubt Frank was speaking the exact truth when he declared his belief
+that the revolver had not been charged since the time when Casper
+emptied it at the pursuing airship, in the hope of either frightening
+the boy aviators; or else doing some sort of damage.
+
+He stared hard at Frank for half a minute; then with some muttered
+words, as if he realized the folly of butting up against fate, threw
+the useless weapon far out on the heaving surface of the lake.
+
+After that a dense silence fell upon them. The men were too down-hearted
+to want to talk; and there was little that the boys had to communicate,
+because they were now in a position where they could do absolutely
+nothing to help themselves; and must depend entirely upon the coming of
+the tug.
+
+An hour passed, and it seemed very long. All of them were more or less
+wet because of the splashing waves; but as the air was balmy, they cared
+little for such a thing as that, if only the tug would show up.
+
+Innumerable times did Andy stretch his neck, and look toward the quarter
+in which it must appear, if it came at all; but the hour began to extend
+far into a second one, and as yet there was nothing seen that brought
+with it a ray of hope.
+
+Worse still the sea was gradually getting more and more tempestuous, it
+seemed to Andy, though the sky remained absolutely clear, and, there was
+not a sign of a storm.
+
+If that had been a fog in the far distance which Frank had sighted, the
+breeze must have long ago dissipated it entirely.
+
+Lower sank the sun, until it was now not more than half an hour above
+the horizon, if its stay could be measured in the way of minutes and
+seconds. Oh! if only the friendly tug would come in sight amidst the
+foam-crested waves! It was really getting to be too much of a good
+thing, trying to keep the hydroplane from keeling over, with those waves
+breaking against the frail planes. If this kept up much longer, Frank
+was very much afraid that Percy Carberry would not be the only boy in
+Bloomsbury to mourn the loss of an airship.
+
+When, therefore, Andy gave a sudden shout, and announced that he
+believed he had seen the smoke of the tug wreathing above the waves, all
+of them looked considerably relieved, even Casper himself; for on second
+thoughts the yeggman must have decided that it was better to be alive
+and in prison, than dead, and under the waters of Lake Ontario.
+
+In five minutes they could all see the smokestack of the powerful tug,
+and for fear lest it should pass by and not do them any good they
+shouted hoarsely in unison.
+
+"They hear us!" exclaimed Andy, whose position, somehow, allowed him to
+see better than any of the others, "yes, they've changed their course,
+and are heading this way now. It's all right, Frank; we've won out, I
+guess!"
+
+But Frank was keeping an eye on the two men. He did not mean to give
+them even the slightest chance to play a trick in the eleventh hour.
+Frank Bird was a pretty hard fellow to catch napping, he usually had his
+eyes open, and especially when he knew there was danger around.
+
+The tug came booming on, and they could see that there were quite a
+number of people aboard.
+
+"What if some of them are from Bloomsbury?" suggested Andy. At which his
+cousin laughed.
+
+"You didn't stop to think twice before you made that break, Andy," he
+remarked. "Tell me, by what conveyance could they have got to the lake
+ahead of us, when we came through by lightning express at the rate of
+nearly a hundred miles an hour at times? But I can see they are
+expecting to take charge of our friends here, because there's an officer
+aboard. Just keep where you are, Casper; your goose is cooked, and
+there's no need of making matters worse."
+
+The man settled back again with a growl, and then burst out into a
+reckless laugh.
+
+"Small difference it makes, I guess, boys, how the thing's done, so
+long as we've got to go to the lock-up. You might just as well have the
+credit for the job as anybody; and man to man, now I want to say that
+I'm full of admiration for the fine way you handled that hydroplane of
+yours. If so be you're the Bird boys I've been hearing so much about,
+you've got the making of crack-a-jack aviators in you. That's about all
+from me now."
+
+The tug came alongside, and the two men were assisted aboard, where the
+police officer saw that they were promptly ironed.
+
+"We got the word from Bloomsbury, and your father hired this tug right
+away, Andy Bird, to follow you out on the lake, if so be you kept after
+the rascals," said a tall gentleman with a white mustache, who, they
+afterwards learned, was the mayor of the city on the lake shore. "Now
+what can we do for you?"
+
+"Please stand by, and let's see if we can get away," answered Frank, "if
+not we'll have to go on board, and tow the hydroplane behind, but since
+relieved of so much extra weight the pontoons have risen again; and I
+expect she'll go."
+
+And she did, with the very first effort, beginning to move over the
+surface of the water in the lee of the tug; then, as Frank hastened to
+elevate the planes, the airship started to mount and when free from the
+lake a mighty cheer broke from the lips of those aboard the small
+vessel, even Casper Blue joining in giving the brave lads their just
+dues.
+
+Frank carefully started back toward the American side of the lake. He
+did not know whether the capture had been made on the Canadian side or
+not, and as the question was never raised, even in the trail of the bank
+robbers it was never wholly clear in his mind.
+
+When they reached land it was early night; and save that the wind had
+lulled considerably, they would not have been able to get in for a long
+time after that. As there was no need of their hurrying homeward, Frank
+and Andy consented to stay over as the guests of the mayor, who was more
+than pleased to have the famous Bird boys stop under his roof.
+
+But first Frank made sure to send a message to each of their homes; as
+well as to Chief Waller, who would have to come on and get the two bold
+men who had broken into the Bloomsbury bank and about cleaned out the
+vault; and not content with one haul, were planning to rob the pay-car
+when it stopped in Bloomsbury to settle with a large number of employees
+centering there.
+
+Doubtless that must have been a season of considerable excitement in
+the home town; and the names of Frank and Andy Bird were cheered to the
+echo by the crowds of town boys Larry and Elephant would lead around,
+burning red lights and firing off Roman candles purchased with money
+supplied by Dr. and Professor Bird, the happy fathers of the two young
+heroes.
+
+On the following day Chief Waller was on hand with one of his men to
+escort the prisoners back to the town where their latest crime had been
+committed. Frank had already sent the little camera box with its
+valuable contents, just as he had received it from Casper Blue, to the
+president of the bank by express, not caring to hold it any longer in
+his hands than was absolutely necessary.
+
+About noon, the conditions being favorable, the Bird boys sailed away
+amidst the cheers of half the little city, and headed directly south on
+a bee line for home.
+
+Fortunately enough no further adventures overtook them on their way
+there, and as their coming had been announced they found the whole town
+in an uproar, and came near being mobbed, such was the desire of every
+man, woman, boy and girl to have the honor of shaking hands with them.
+
+Percy was on hand too, with a thousand questions concerning the fate of
+his precious biplane, and bemoaning the fact that he seemed to be the
+most unlucky fellow who had ever attempted to bring honors to
+Bloomsbury. But there were precious few who sympathized with him; and
+everybody knew that all he had to do was to demand that his mother
+advance the ready cash to buy another flier, and it was sure to be
+forthcoming.
+
+But there were other lively times in store for Frank and Andy Bird,
+although neither of them suspected it just then, and believed that a
+period of calm would likely follow their hydroplane round-up. What the
+nature of these exploits were the reader who has accompanied us in our
+voyage through the pages of this book, will learn when he purchases the
+next story in this series, now on sale under the title of "The Bird
+Boys' Aeroplane Wonder or, Young Aviators On a Cattle Ranch."
+
+
+The End.
+
+
+
+
+
+End of the Project Gutenberg EBook of The Aeroplane Boys Flight
+by John Luther Langworthy
+
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