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-</style>
-<title>THE PHANTOM AIRMAN</title>
-<meta name="PG.Rights" content="Public Domain" />
-<meta name="PG.Title" content="The Phantom Airman" />
-<meta name="PG.Producer" content="Al Haines" />
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-<meta name="DC.Creator" content="Rowland Walker" />
-<meta name="DC.Created" content="1920" />
-<meta name="PG.Id" content="43264" />
-<meta name="PG.Released" content="2013-07-20" />
-<meta name="DC.Language" content="en" />
-<meta name="DC.Title" content="The Phantom Airman" />
-
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-<meta content="The Phantom Airman" name="DCTERMS.title" />
-<meta content="airman.rst" name="DCTERMS.source" />
-<meta content="en" scheme="DCTERMS.RFC4646" name="DCTERMS.language" />
-<meta content="2013-07-20T17:17:00.330276+00:00" scheme="DCTERMS.W3CDTF" name="DCTERMS.modified" />
-<meta content="Project Gutenberg" name="DCTERMS.publisher" />
-<meta content="Public Domain in the USA." name="DCTERMS.rights" />
-<link href="http://www.gutenberg.org/ebooks/43264" rel="DCTERMS.isFormatOf" />
-<meta content="Rowland Walker" name="DCTERMS.creator" />
-<meta content="2013-07-20" scheme="DCTERMS.W3CDTF" name="DCTERMS.created" />
-<meta content="width=device-width" name="viewport" />
-<meta content="EpubMaker 0.3.20a7 by Marcello Perathoner &lt;webmaster@gutenberg.org&gt;" name="generator" />
-</head>
-<body>
-<div class="document" id="the-phantom-airman">
-<h1 class="center document-title level-1 pfirst title"><span class="x-large">THE PHANTOM AIRMAN</span></h1>
-
-<!-- this is the default PG-RST stylesheet -->
-<!-- figure and image styles for non-image formats -->
-<!-- default transition -->
-<!-- default attribution -->
-<!-- -*- encoding: utf-8 -*- -->
-<div class="clearpage">
-</div>
-<!-- -*- encoding: utf-8 -*- -->
-<div class="align-None container language-en pgheader" id="pg-header" xml:lang="en" lang="en">
-<p class="noindent pfirst"><span>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 </span><a class="reference internal" href="#project-gutenberg-license">Project Gutenberg License</a><span>
-included with this eBook or online at
-</span><a class="reference external" href="http://www.gutenberg.org/license">http://www.gutenberg.org/license</a><span>.</span></p>
-<p class="noindent pnext"></p>
-<div class="vspace" style="height: 2em">
-</div>
-<div class="align-None container" id="pg-machine-header">
-<p class="noindent pfirst"><span>Title: The Phantom Airman
-<br />
-<br />Author: Rowland Walker
-<br />
-<br />Release Date: July 20, 2013 [EBook #43264]
-<br />
-<br />Language: English
-<br />
-<br />Character set encoding: UTF-8</span></p>
-</div>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="noindent pfirst" id="pg-start-line"><span>*** START OF THIS PROJECT GUTENBERG EBOOK </span><span>THE PHANTOM AIRMAN</span><span> ***</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="noindent pfirst" id="pg-produced-by"><span>Produced by Al Haines.</span></p>
-<div class="vspace" style="height: 1em">
-</div>
-<p class="noindent pfirst"><span></span></p>
-</div>
-<div class="align-None container frontispiece">
-<div class="vspace" style="height: 3em">
-</div>
-<div class="align-center auto-scaled figure margin" style="width: 61%" id="figure-10">
-<span id="it-was-as-though-the-mighty-concussion-had-blown-a-hole-in-the-universe-page-245"></span><img class="align-center block" style="display: block; width: 100%" alt="&quot;It was as though the mighty concussion had blown a hole in the universe.&quot;--*Page* 245." src="images/img-front.jpg" />
-<div class="caption centerleft figure-caption margin">
-<span class="italics">"It was as though the mighty concussion had blown a hole in the universe."--</span><em class="italics">Page</em><span class="italics"> </span><a class="italics reference internal" href="#id1">245</a><span class="italics">.</span></div>
-</div>
-<div class="vspace" style="height: 4em">
-</div>
-</div>
-<div class="align-None container titlepage">
-<p class="center pfirst"><span class="x-large">THE
-<br />PHANTOM AIRMAN</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="center pfirst"><span class="medium">BY</span></p>
-<p class="center pnext"><span class="large">ROWLAND WALKER</span></p>
-<div class="vspace" style="height: 1em">
-</div>
-<p class="center pfirst"><span class="small">AUTHOR OF "DASTRAL OF THE FLYING CORPS," "DEVILLE
-<br />McKEENE, THE BRITISH ACE," ETC, ETC.</span></p>
-<div class="vspace" style="height: 3em">
-</div>
-<p class="center pfirst"><span class="medium">S. W. PARTRIDGE &amp; Co.
-<br />4, 5 &amp; 6, SOHO SQUARE, LONDON, W.1</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-</div>
-<div class="align-None container verso">
-<p class="center pfirst"><span class="small">MADE IN GREAT BRITAIN
-<br /></span><em class="italics small">First Published</em><span class="small"> 1920
-<br /></span><em class="italics small">Frequently reprinted
-<br />This Impression issued</em><span class="small"> 1931</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-</div>
-<p class="center pfirst"><span class="bold large">CONTENTS</span></p>
-<div class="vspace" style="height: 1em">
-</div>
-<p class="noindent pfirst"><span class="small">CHAPTER</span></p>
-<ol class="upperroman simple">
-<li><p class="first noindent pfirst"><a class="reference internal" href="#the-secret-of-the-schwarzwald">The Secret of the Schwarzwald</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#the-wonder-plane">The Wonder 'Plane</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#tempest-of-the-aerial-police">"Tempest" of the Aerial Police</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#a-midnight-consultation">A Midnight Consultation</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#the-aerial-liner">The Aerial Liner</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#an-up-to-date-cabin-boy">An Up-to-Date Cabin Boy</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#a-duel-with-words">A Duel with Words</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#sons-of-the-desert">Sons of the Desert</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#the-phantom-bird">The Phantom Bird</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#the-brigand-of-the-eastern-skies">The Brigand of the Eastern Skies</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#the-air-king-s-tribute">The Air-King's Tribute</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#the-maharajah-s-choice">The Maharajah's Choice</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#the-missing-airship">The Missing Airship</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#betrayed-by-the-camera">Betrayed by the Camera</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#diamond-cut-diamond">Diamond cut Diamond</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#the-ghostly-visitant">The Ghostly Visitant</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#the-watchers">The Watchers</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#live-wires">"Live Wires"</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#the-devil-s-workshop">The Devil's Workshop</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#hands-up">"Hands Up!"</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#the-coming-fight">The Coming Fight</a></p>
-</li>
-<li><p class="first noindent pfirst"><a class="reference internal" href="#an-aerial-duel">An Aerial Duel</a></p>
-</li>
-</ol>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="the-secret-of-the-schwarzwald"><span class="bold x-large">THE PHANTOM AIRMAN</span></p>
-<div class="vspace" style="height: 3em">
-</div>
-<p class="center pfirst"><span class="bold large">CHAPTER I</span></p>
-<p class="center pnext"><span class="bold medium">THE SECRET OF THE SCHWARZWALD</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>Rittmeister Heinrich von Spitzer, late
-flight-commander in the German Air Service,
-was one of the Prussian irreconcilables, who,
-rather than submit to the peace terms enforced
-by the Allies after the defeat of Germany,
-resolved to become an aerial brigand, an
-outlaw of the nations, and to wage a bitter
-warfare of violence and plunder against his
-late enemies.</span></p>
-<p class="pnext"><span>His proud spirit refused to bend before the
-conquerors, for the iron shaft of defeat had
-embittered his soul, particularly against
-Britain, whom he had ever regarded as the
-evil genius of the Entente.</span></p>
-<p class="pnext"><span>One day, when his plans were well matured,
-he unburdened his spirit to a couple of his
-friends, kindred souls, men after his own
-heart, both of them apt pupils of the great
-Richthofen, who was still referred to by his
-disciples as "the red airman." They had
-been engaged that day in dismantling an
-aerodrome on the edge of the Schwarzwald;
-to them, at least, a hateful job.</span></p>
-<p class="pnext"><span>"Comrades," he said, "this peace has
-ruined us. </span><em class="italics">Germania delenda est</em><span>, but I will
-not sit still amid the ruins of the Fatherland.
-Glorious we have lived, like kings of the air;
-let us not inglorious die."</span></p>
-<p class="pnext"><span>"I am with you, Rittmeister. I will
-follow you to the gulfs," exclaimed one of his
-companions, named Carl, who had been a
-famous scout pilot in the Richthofen "circus,"
-and the lightning flashed from the young
-airman's eyes as he spoke.</span></p>
-<p class="pnext"><span>"But what can we do against the empires
-of the world?" asked a Gotha pilot who had
-raided the English towns a score of times.</span></p>
-<p class="pnext"><span>For answer the chief turned a withering
-look upon the last speaker and said:--</span></p>
-<p class="pnext"><span>"Max, you have faced death a hundred
-times in the air, and over the British lines.
-You have thirty enemy machines to your
-credit, and yet you ask me what can we do?"</span></p>
-<p class="pnext"><span>"What of it, Rittmeister? Tell us what
-is in your mind."</span></p>
-<p class="pnext"><span>"Listen, then, both of you, and I will tell
-you what still remains for brave men to do.
-All is not lost while courage and hope remain,"
-and whilst he spoke the German chief drew
-his two friends away from the half-dismantled
-aerodrome on the southern edge of the
-Schwarzwald, to a narrow path that led
-amongst the trees.</span></p>
-<p class="pnext"><span>When the aerodrome was hid from view he
-began to speak once more, huskily at first, as
-though restraining some pent up excitement.</span></p>
-<p class="pnext"><span>"I am in possession of a secret," he said,
-"which I may not tell even to you unless
-you first swear to follow me on some great
-adventure."</span></p>
-<p class="pnext"><span>They both looked at him, not a little
-amazed and bewildered, and neither spoke for
-a moment.</span></p>
-<p class="pnext"><span>"I have chosen you," continued Spitzer,
-"because I know you to be men of daring and
-resource. You are both dissatisfied with the
-condition of things in the Fatherland. Ach
-Himmel! This occupation of the sacred
-German soil by the Britisher, the Frenchman
-and the American is breaking my heart. I
-will endure it no longer, but I will strike a
-blow at the enemy before I die."</span></p>
-<p class="pnext"><span>As he spoke thus, he almost hissed out the
-words which he uttered, for his voice had now
-lost its strange huskiness, while his eyes
-gleamed like the fierce glittering orbs of the
-tiger about to make its spring from the hidden
-jungle. Nor was his present madness without
-its visible effect upon his two companions,
-for he had strange powers of magnetic
-influence, this Prussian Junker.</span></p>
-<p class="pnext"><span>"Donner and Blitz, but you are right,
-Rittmeister!" exclaimed Carl, the blood
-mounting to his temples.</span></p>
-<p class="pnext"><span>"And you, Max, what say you?" and the
-chief fixed the Gotha pilot with his eyes.</span></p>
-<p class="pnext"><span>"Ja! ja!" he assented. "I am with you also."</span></p>
-<p class="pnext"><span>"But the end of this adventure is death!"
-continued von Spitzer, speaking now more
-deliberately. "This much I must tell you
-in all fairness before I proceed further.
-However much we achieve--and we shall
-accomplish not a little--there can be no other
-ending."</span></p>
-<p class="pnext"><span>"Bah! we have looked too often into the
-face of that monster to be afraid," returned
-the scout.</span></p>
-<p class="pnext"><span>"You speak truly, Carl," replied the chief.
-"When your machine went down in flames
-near Cambrai, you passed so close to me that
-I stalled my Fokker to let you pass, and I
-saw the smile upon your lips that day as you
-looked into the face of death. I never
-expected to see you alive again, but you were
-saved for this."</span></p>
-<p class="pnext"><span>Then, amid the gloom of the dark aisles of
-the Schwarzwald, these two men swore to
-follow their chief on this last great adventure,
-as they had followed him during the darkest
-days of the war.</span></p>
-<p class="pnext"><span>"And now I will tell you the secret which
-I hold, and which at present is known only to
-two other men," said the Rittmeister, and,
-sitting down about the gnarled roots of an
-upturned tree, the two airmen listened to
-the following story:</span></p>
-<p class="pnext"><span>"You have heard me sometimes speak of a
-great mathematician and engineer, by name
-one Professor Weissmann," began von Spitzer.</span></p>
-<p class="pnext"><span>"Yes, we have heard of him," replied the others.</span></p>
-<p class="pnext"><span>"He is the greatest living scientist;
-moreover, he is a practical engineer, and during
-the last four years he has devoted his time
-entirely to designing, constructing and
-perfecting with his own hands, assisted by one other
-mechanic, a wonderful aeroplane, compared
-to which neither the Allies nor the Central
-Powers have anything to approximate."</span></p>
-<p class="pnext"><span>"Donnerwetter, but why wasn't it ready
-before?" exclaimed Max. "It might have
-turned the tide of battle in the autumn of 1918."</span></p>
-<p class="pnext"><span>"It's no use crying over spilt milk,"
-replied the chief. "It could not be completed
-before."</span></p>
-<p class="pnext"><span>"And you say that this wonderful machine
-is now ready," interposed Max, who had flown
-every type of machine from a single-seater
-scout to a heavy bomber, and whose
-professional curiosity had now been thoroughly
-awakened by the words of the German ace.</span></p>
-<p class="pnext"><span>"It is ready, and what is more to the point,
-it is at my disposal," returned the chief
-briefly.</span></p>
-<p class="pnext"><span>"Der Teufel! But where is it?"</span></p>
-<p class="pnext"><span>"I can lead you to it, for it is less than three
-miles from where we sit at the present
-moment."</span></p>
-<p class="pnext"><span>"Himmel!" exclaimed both the pilots,
-springing to their feet. "Take us to see it,
-Rittmeister; we have given you our promise."</span></p>
-<p class="pnext"><span>"Be calm, my friends; you shall see it
-to-day. But let me put you on your guard.
-You must not speak of it aloud, but only in
-whispers, for the secret of this machine is
-jealously guarded, and its whereabouts is
-unknown, save to the professor, his assistant
-and myself."</span></p>
-<p class="pnext"><span>"Has it ever been flown?" ventured Max.</span></p>
-<p class="pnext"><span>"Yes."</span></p>
-<p class="pnext"><span>"Who was the pilot?"</span></p>
-<p class="pnext"><span>"I was."</span></p>
-<p class="pnext"><span>"You, Rittmeister?" exclaimed the amazed airmen.</span></p>
-<p class="pnext"><span>"Yes."</span></p>
-<p class="pnext"><span>"And you are satisfied at her
-performances?" asked Carl, gazing steadfastly into
-the eyes of his chief.</span></p>
-<p class="pnext"><span>"More than satisfied. She is the most
-wonderful and responsive thing I have ever
-flown. You will say the same when you have
-seen her, and made a trip or two."</span></p>
-<p class="pnext"><span>"Phew! take us to see her now; I would
-give ten years of my life to fly in her," said
-Max, who was getting almost feverish in his
-anxiety to see this wonderful thing and to
-handle her controls; for such is the lure of
-the air, especially to those who have climbed
-into the azure and sailed amongst the clouds
-in the days of their youth.</span></p>
-<p class="pnext"><span>"You shall fly in her," replied Spitzer.</span></p>
-<p class="pnext"><span>"When?" asked the eager youth.</span></p>
-<p class="pnext"><span>"When we start our great adventure,"
-replied the chief.</span></p>
-<p class="pnext"><span>"And when will that be?"</span></p>
-<p class="pnext"><span>"To-morrow, if you are willing; all our
-plans are laid."</span></p>
-<p class="pnext"><span>"Why to-morrow?" asked the others simultaneously.</span></p>
-<p class="pnext"><span>"Because delay is dangerous. There is
-always the danger that this secret, so jealously
-guarded, and hidden away in the depth of the
-Black Forest, may be discovered. You know
-that Germany, under the Peace terms, is
-forbidden for the present to manufacture
-aircraft."</span></p>
-<p class="pnext"><span>"Yes, yes; we know it only too well."</span></p>
-<p class="pnext"><span>"Well, even now," continued von Spitzer,
-"the British Air Police have got wind of the
-thing, and their agents are in a dozen different
-parts of Germany trying to fathom the
-mystery of this phantom aeroplane, but so
-far they have not succeeded. All the same, it
-is time for us to get away, and that is why I
-have confided my plans to you to-day. Do
-you wish to withdraw?" and there was just
-a faint suspicion of a sneer in the tone of the
-speaker's voice, as he said this.</span></p>
-<p class="pnext"><span>"Withdraw? Ach Himmel, no, a thousand
-times no! I am ready to start to-day,"
-flashed back the ruffled Carl as he replied.</span></p>
-<p class="pnext"><span>"Gut!" grunted von Spitzer. "Then you
-shall see this wonderful thing to-night at
-sunset; I dare not take you there before,
-and to-morrow, ach! to-morrow, this great
-adventure will begin."</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="the-wonder-plane"><span class="bold large">CHAPTER II</span></p>
-<p class="center pnext"><span class="bold medium">THE WONDER 'PLANE</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>The sun was sinking amongst the pines of the
-Schwarzwald when the three airmen, after
-traversing for several miles the wild unbroken
-solitudes of that primeval forest, emerged at
-length from the dark shadows of the trees on
-to a little open glade, a natural clearing about
-two hundred metres in diameter.</span></p>
-<p class="pnext"><span>"Here we are at last!" exclaimed the chief.</span></p>
-<p class="pnext"><span>"Himmel! what a perfect little aerodrome,"
-cried the scout pilot.</span></p>
-<p class="pnext"><span>"But where is the hangar?" asked the
-more observant Max.</span></p>
-<p class="pnext"><span>"Hist! Let us wait for the signal,"
-ordered the Rittmeister, waving his
-companions back to the fringe of the forest.</span></p>
-<p class="pnext"><span>"But there is not a soul to be seen
-anywhere," expostulated Carl. "No one ever
-comes here."</span></p>
-<p class="pnext"><span>"We must be careful; there is too much
-at stake," whispered the flight-commander,
-and then he gave a long, low whistle, repeated
-twice.</span></p>
-<p class="pnext"><span>Scarcely had the last sound died away, like
-the sad piping tone of the woodland robin,
-than a similar call came in response from the
-opposite side of the glade.</span></p>
-<p class="pnext"><span>"Follow me; the way is clear," said the
-chief as he strode across the clearing towards
-the spot whence came the signal. And his
-companions followed him, silently wondering,
-for, somehow, they felt that they were treading
-on enchanted ground, and that some
-interesting </span><em class="italics">dénouement</em><span> would shortly take place.</span></p>
-<p class="pnext"><span>As they neared the edge of the forest once
-more, a movement amongst the trees attracted
-their attention, and the next instant a solitary
-figure emerged from the shadows and greeted
-them. It was the keen, lynx-eyed professor,
-the great mathematician and engineer; a
-man about fifty, dressed in a loose working
-garb, wearing a battered felt hat above his
-shock of white, wavy hair.</span></p>
-<p class="pnext"><span>"You are welcome, children of the Fatherland,"
-he said, extending his hand, and fixing
-the two strangers with his piercing eyes, after
-this brief salutation.</span></p>
-<p class="pnext"><span>"I hope we are not late," began von Spitzer,
-when the first salutation was over and he had
-introduced his companions.</span></p>
-<p class="pnext"><span>"The sun is amongst the pines and the
-shadows of the Schwarzwald deepen," replied
-the professor, speaking in the language of the
-forest. "It was the time arranged, but"--and
-here he paused for a second--"there is no
-time for delay," and an uneasy look spread
-over his face.</span></p>
-<p class="pnext"><span>"You don't mean that----" began the
-chief, but the genius forestalled him by
-adding:--</span></p>
-<p class="pnext"><span>"Yes, strangers have crossed the clearing
-to-day. For the first time since I came here,
-I heard strange voices amongst the trees."</span></p>
-<p class="pnext"><span>"But they found nothing?"</span></p>
-<p class="pnext"><span>"Nothing!" ejaculated the professor.</span></p>
-<p class="pnext"><span>"Good! Then my friends may view the
-aeroplane," said Spitzer.</span></p>
-<p class="pnext"><span>"Certainly; let them follow me," and
-through an opening barely fifteen feet wide,
-the professor led the way to a combined
-hangar and workshop, carefully camouflaged
-and hidden away amongst the trees.</span></p>
-<p class="pnext"><span>The next instant the two young airmen
-received the greatest surprise of their lives.</span></p>
-<p class="pnext"><span>"Der </span><em class="italics">Skorpion</em><span>!" announced the professor.</span></p>
-<p class="pnext"><span>"Donnerwetter!" came the involuntary
-cry from both the strangers as their eyes fell
-upon a new type of aeroplane, with an angry,
-waspish look about it, that the Bristol Fighter
-used to wear during the later days of the
-Great War. Yet it was not a Bristol Fighter
-by any means, for it was twin-engined, and
-steel-built throughout, with a central conning-tower,
-tapering off to a sharp point to improve
-the stream-line, and a closed-in be-cabined
-fuselage into which four or six persons might
-with ease be stowed away.</span></p>
-<p class="pnext"><span>"But her engines!" exclaimed Max.
-"How small they are."</span></p>
-<p class="pnext"><span>"But how powerful!" replied Spitzer.
-"Each one develops anything up to 400 horsepower."</span></p>
-<p class="pnext"><span>"Is it possible?" asked Carl, who was
-already carefully examining the starboard
-engine, in its covered in and stream-lined
-casement.</span></p>
-<p class="pnext"><span>"The propellers are different, too; they're
-something like the Fokker's, but shorter, and
-they have a peculiar twist, which I have never
-seen before. What is that for, Rittmeister?"
-asked the Gotha pilot.</span></p>
-<p class="pnext"><span>"For vertical climbs, Max," replied the
-chief, for while the professor stood by, and
-looked on, interested and amused at the
-growing enthusiasm for his idol, the
-Rittmeister, who had been secretly schooled in the
-hidden mysteries, explained them point by
-point, for he was a great mechanic and
-mathematician was this ex-flight-commander.</span></p>
-<p class="pnext"><span>"Vertical climbs?" echoed the other. "I
-thought it was impossible."</span></p>
-<p class="pnext"><span>"Impossible? Rubbish! Nothing is
-impossible to the man of science. Have you
-never heard of the Helicopter?"</span></p>
-<p class="pnext"><span>"You mean that hybrid mongrel the
-verdammt Yanks and the Britishers have been
-experimenting with of late, and which has
-caused so many accidents?"</span></p>
-<p class="pnext"><span>"The same; only they went the wrong
-way about it. This propeller, with this
-driving power behind it, practically gives the
-vertical ascent, especially when once flying
-speed has been obtained."</span></p>
-<p class="pnext"><span>"Blitz, but it is wonderful!" concluded
-Max, his enthusiasm growing by leaps and
-bounds, as he continued his examination.</span></p>
-<p class="pnext"><span>"Why, the propellers are made of steel,
-and so are the planes," exclaimed Carl, who
-was now carefully examining the material of
-which the aeroplane was made.</span></p>
-<p class="pnext"><span>"Steel, tempered steel, every bit of
-it--fuselage, propellers, tail fin, rudders. There's
-not an ounce of wood about the </span><em class="italics">Scorpion</em><span>,"
-returned the mentor.</span></p>
-<p class="pnext"><span>"Then the danger of fire is lessened,"
-ventured Max, whose one dread in the air
-had always been that of fire.</span></p>
-<p class="pnext"><span>"That danger is eliminated," replied the
-chief, in a tone of certitude.</span></p>
-<p class="pnext"><span>"Except by petrol. By the way, where are
-the petrol tanks?" exclaimed Carl, who had
-never missed them till now.</span></p>
-<p class="pnext"><span>"There aren't any," replied the Rittmeister,
-smiling. "I was waiting for that question."</span></p>
-<p class="pnext"><span>"No petrol tanks?" came the astonished
-cry from both the airmen at once.</span></p>
-<p class="pnext"><span>"They're not necessary," returned the
-other; "and that's the greatest mystery of all."</span></p>
-<p class="pnext"><span>"Himmel! Am I dreaming?" exclaimed Max.</span></p>
-<p class="pnext"><span>"No, you're wide awake. Don't stare like
-that, man!"</span></p>
-<p class="pnext"><span>"Der Teufel, but how is she driven?"
-demanded the scout, staring with wide-open
-eyes from Spitzer to the professor, and from
-the latter to his mechanic, who had stood by
-all this while, with arms akimbo, silently
-amused at the bewilderment of the two
-strangers.</span></p>
-<p class="pnext"><span>"Listen," began the Rittmeister. "I
-cannot explain everything now--time will not
-permit--but you shall learn all these things
-before many days are over."</span></p>
-<p class="pnext"><span>"Yes, go on!"</span></p>
-<p class="pnext"><span>"The professor has spent years on this
-series of inventions, both in the workshop and
-the laboratory, and each discovery has been
-co-ordinated and fitted into the scheme. The
-greatest of all his discoveries is the fact that
-he has been able to discover and to harness an
-unknown force to drive the motors of the
-</span><em class="italics">Scorpion</em><span>."</span></p>
-<p class="pnext"><span>"A highly compressed gas, I suppose,"
-interposed Max, who had taken a science
-degree at Bonn.</span></p>
-<p class="pnext"><span>"Certainly, it is a </span><em class="italics">most</em><span> highly compressed
-gas, extracted at great pains and labour from
-the elements. The formulæ for this wonderful
-new element exist only in the still more
-wonderful brain of the professor. It has not
-been committed to paper even, in its final
-terms and ratios, so that, even should this
-machine be captured, which it certainly shall
-not be whilst I am its pilot, it could not be
-used, once the present supply of this Uranis,
-as we will call it, is used up."</span></p>
-<p class="pnext"><span>"That is why the engines are so small,
-then?" ventured Max.</span></p>
-<p class="pnext"><span>"Precisely!"</span></p>
-<p class="pnext"><span>"And what is our present supply of this
-wonderful element?"</span></p>
-<p class="pnext"><span>"Do you see this?" said the Rittmeister,
-pointing to a few small cylinders, each about
-two feet long, and six inches in diameter,
-which lay carefully piled upon each other on
-the floor near the </span><em class="italics">Scorpion</em><span>.</span></p>
-<p class="pnext"><span>"Yes."</span></p>
-<p class="pnext"><span>"That is the world's supply at present,
-excluding the two cylinders which are already
-fitted on the machine."</span></p>
-<p class="pnext"><span>"The world's supply," ejaculated Carl, who
-was thinking of the huge petrol tank, which
-in a Fokker scout would last only three hours
-with the throttle wide open. "That won't
-last long, unless the pressure is enormous."</span></p>
-<p class="pnext"><span>"The pressure is enormous, my friend;
-so enormous that if anything happened it
-would----"</span></p>
-<p class="pnext"><span>"Blow a hole in the universe, I reckon,"
-interposed Max.</span></p>
-<p class="pnext"><span>"You are right, and that is the only danger
-connected with the </span><em class="italics">Scorpion</em><span>. The other
-danger you mentioned, that of fire, is altogether
-eliminated. There would be nothing to burn
-if one of these cylinders exploded, for there
-would be nothing left--in the vicinity."</span></p>
-<p class="pnext"><span>"</span><em class="italics">Sacre bleu</em><span>!" exclaimed Carl, </span><em class="italics">sotto voce</em><span>,
-for, brave youth that he was, he shuddered at
-the thought.</span></p>
-<p class="pnext"><span>Max was the more practical of the two,
-however, for he belonged not to the highly
-sensitive scouts, but to the heavy bombers,
-and he merely asked to satisfy his curiosity:--</span></p>
-<p class="pnext"><span>"How far will one of those cylinders take
-us, Rittmeister?"</span></p>
-<p class="pnext"><span>"Ten thousand miles," replied the chief,
-"that is, one fitted to either engine."</span></p>
-<p class="pnext"><span>"Good! Let me see, there are ten here,
-and one already fitted to either motor
-makes a dozen. Why, they would carry
-us"--and here he made a rapid calculation--"they
-would take us twice round the world."</span></p>
-<p class="pnext"><span>"Precisely, and with a little to spare, when
-we had completed the double trip."</span></p>
-<p class="pnext"><span>"And what speed would she pick up, say
-at a level flight?"</span></p>
-<p class="pnext"><span>For answer the chief looked at the professor,
-as though uncertain whether to reply to this
-question.</span></p>
-<p class="pnext"><span>"They have taken the oath, sir," he pleaded,
-"They cannot withdraw," and the great
-scientist nodded his acquiescence.</span></p>
-<p class="pnext"><span>"Two hundred and fifty miles without
-being pushed," he replied at length.</span></p>
-<p class="pnext"><span>"Donnerwetter! And what if she were pushed?"</span></p>
-<p class="pnext"><span>"I cannot say, she has never been driven
-beyond that."</span></p>
-<p class="pnext"><span>"What a deuce of a noise she will make--like
-a whole formation of Gothas, I should
-imagine," said Max.</span></p>
-<p class="pnext"><span>The professor smiled, but left it to the
-Rittmeister to explain this last point.</span></p>
-<p class="pnext"><span>"The engines are silent, but there is a
-slight hum from the propellers. That cannot
-be effaced at present, but it is nothing."</span></p>
-<p class="pnext"><span>Then, having given all these details, the
-visitors made a closer inspection of the
-machine. They were permitted to climb into
-the conning-tower, to handle the controls, and
-the two swivel machine guns mounted there.
-They were shown into the little cabin, where
-four men might sit at the little table, or lie
-down at full length, but could not stand
-upright. The steel struts, steel folding wings,
-the carefully packed spares, the little mica
-windows in the cabin--these, and a dozen
-other things, were pointed out and explained
-to them--the stores which were already
-packed, comprising chronometrical instruments,
-maps, charts, ammunition for the guns,
-compressed food, etc., until their bewilderment
-grew, and their astonishment became
-unbounded.</span></p>
-<p class="pnext"><span>"Why, she scarcely needs an aerodrome at
-all!" Carl ventured at length.</span></p>
-<p class="pnext"><span>"Scarcely," replied the chief. "At any
-rate, not for a long time."</span></p>
-<p class="pnext"><span>"She is weather proof; she is wonderfully
-camouflaged. She could hide in a desert, or
-a meadow," said Max.</span></p>
-<p class="pnext"><span>"And she carries her own stores for a long,
-long trip," ventured Carl, who was just dying
-for the morrow to come.</span></p>
-<p class="pnext"><span>"And if she were chased, she could make
-rings round anything, even a Fokker scout,
-or a verdammt British S.E.5," added Max.</span></p>
-<p class="pnext"><span>"So you are satisfied, both of you?"
-asked the Rittmeister.</span></p>
-<p class="pnext"><span>"Perfectly satisfied. I am only longing for
-to-morrow, so that I may turn aerial brigand,
-buccaneer, or what you like," answered Carl.</span></p>
-<p class="pnext"><span>"And you, Max?"</span></p>
-<p class="pnext"><span>"I am ready, chief, to follow you to the end
-of the world, for mine eyes have seen the
-wonder 'plane."</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="tempest-of-the-aerial-police"><span class="bold large">CHAPTER III</span></p>
-<p class="center pnext"><span class="bold medium">"TEMPEST" OF THE AERIAL POLICE</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>Colonel John Tempest, D.S.O., M.C., etc.,
-late of the Royal Air Force, and now Chief
-Commissioner of the British Aerial Police, sat
-before a pile of papers in his office at Scotland
-Yard late one evening. He was anxious and
-worried, for something had gone seriously
-wrong with his plans.</span></p>
-<p class="pnext"><span>It was his duty to investigate and track
-down all aerial criminals, whether brigands,
-smugglers or revolutionists of the Bolshevist
-type. For this purpose he had been appointed
-by the Government to the command of the
-British Aerial Police, whose functions included
-the patrolling of the routes of the great aerial
-liners throughout the British Isles, and the
-All-Red route to Egypt, India, and other
-British possessions, and the careful guarding
-and watching of the aerial gateways and ports.</span></p>
-<p class="pnext"><span>Some of the best scout pilots of the war,
-including two famous secret service men,
-named Keane and Sharpe, were detailed to
-assist him in this important and ever-increasing
-task, for aerial crime of twenty different
-kinds was becoming more and more prevalent
-since the war.</span></p>
-<p class="pnext"><span>So far his efforts had been conspicuously
-successful, and he had brought many of the
-offenders to justice, but at the present moment
-he had to confess himself baffled--utterly
-baffled by a series of unfortunate occurrences
-which it had been beyond his power to prevent.</span></p>
-<p class="pnext"><span>"There is some master-mind behind all
-this," he exclaimed to himself, rising suddenly
-from his chair, and beginning to pace the
-room, much in the same way that he used to
-pace his squadron office, in the old days, when,
-as commander of a squadron of scouts during
-the Great War, he had attempted to outwit
-the daring of the German airmen.</span></p>
-<p class="pnext"><span>"I wonder now--I wonder what happened
-to that missing German professor!" and
-Colonel Tempest suddenly halted, and placed
-his left hand to his forehead, as some powerful,
-new idea had arrested his mental faculties.</span></p>
-<p class="pnext"><span>Then, walking across the room swiftly, he
-switched on a shaded light which illuminated
-a large map of Germany, showing the aerial
-routes, the lines of occupation by the Allies, etc.</span></p>
-<p class="pnext"><span>"It is just possible," he murmured to
-himself, "that the two things are connected--the
-disappearance of this eminent scientist
-and the appearance of this extraordinary
-flying machine." Then he switched off the
-light, and returned to the sheaf of papers and
-documents on his desk. He sorted out one
-and placed it on top; it was a decoded
-message, received some days ago from one of
-his agents at Constantinople. It ran as
-follows:--</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>"Mysterious aeroplane, phantom-like
-in appearance, passed over here yesterday
-flying at terrific speed. All our signals
-disregarded. No navigation lights
-showing. Our fast scouts gave chase but left
-hopelessly behind. Came from direction
-of Adrianople, crossed the Bosphorus, and
-disappeared rapidly flying south-east.
-Time shortly after sunset.</span></p>
-<div class="vspace" style="height: 1em">
-</div>
-<p class="noindent pfirst"><span>AERIAL, CONSTANTINOPLE."</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>"That is three days ago," continued the
-Colonel, still thinking aloud, "and here are
-four similar messages from other sources
-showing quite plainly the route taken. Great
-Heavens! if I were not tied to my desk in
-this place, I would take the fastest scout in the
-country and chase this infernal night-wizard myself."</span></p>
-<p class="pnext"><span>A soft tap at the door startled the
-Commissioner, for during the last three days he
-had become highly nervous; this affair was
-getting on his mind, but he recovered himself
-instantly and called out in a deep voice:--</span></p>
-<p class="pnext"><span>"Come in!"</span></p>
-<p class="pnext"><span>The door opened softly and his confidential
-secretary entered, and announced:--</span></p>
-<p class="pnext"><span>"Two more cables and a wireless message, sir."</span></p>
-<p class="pnext"><span>"Anything from Keane or Sharpe yet?"
-demanded the chief.</span></p>
-<p class="pnext"><span>"Nothing, sir."</span></p>
-<p class="pnext"><span>"Then what are these confounded things?"</span></p>
-<p class="pnext"><span>"More about that aerial brigand, sir."</span></p>
-<p class="pnext"><span>"Let me see them," and Jones handed the
-messages to his chief.</span></p>
-<p class="pnext"><span>Consternation and alarm were both visible
-on the face of Tempest as he read the news.</span></p>
-<p class="pnext"><span>"So the devil has already got to work,
-Jones," he remarked, quoting from the sheets,
-laconic phrases such as "Oil tanks at Port
-Said burning for three days. Crew of
-mysterious aeroplane suspected." (Delayed
-in transit.) "Wireless station at Karachi
-utterly destroyed, after brief visit by strange
-airmen." The third was a wireless message
-which proved most disconcerting of all to the
-Commissioner. It announced that a silent
-aeroplane, showing no distinctive marks
-whatever, passed over Delhi "this afternoon" at
-a speed estimated at not less than three
-hundred miles an hour.</span></p>
-<p class="pnext"><span>The chief of the aerial police leaned back in
-his chair and groaned.</span></p>
-<p class="pnext"><span>"Three hundred miles an hour!" he gasped;
-"but the silent aeroplane idea is a fallacy.
-It is impossible with any type of
-internal-combustion engine. It must either have been
-too high up for the good people of Delhi to
-hear it, or its engines must have been shut
-off, or well throttled down. Bah! I know too
-much about aeroplanes to swallow that."
-Then rounding upon Jones, who was standing
-by awaiting instructions, he said sharply:--</span></p>
-<p class="pnext"><span>"Did that second message go out to Keane?"</span></p>
-<p class="pnext"><span>"Yes, sir."</span></p>
-<p class="pnext"><span>"And there's still no reply from him?"</span></p>
-<p class="pnext"><span>"Nothing whatever, sir."</span></p>
-<p class="pnext"><span>"H'm. I cannot understand it. Send it
-out again by wireless telephone; he may be
-on his way back by aeroplane now, and
-possibly within reach."</span></p>
-<p class="pnext"><span>"Right, sir," and Jones disappeared to
-stab the ether waves again in search of Keane.
-At that moment the telephone bell on the
-Commissioner's desk rang. It was the Home
-Secretary asking for Colonel Tempest, for the
-same messages concerning the aerial brigand
-had reached him.</span></p>
-<p class="pnext"><span>"Hello, Tempest; is that you?"</span></p>
-<p class="pnext"><span>"Yes; who is that?"</span></p>
-<p class="pnext"><span>"Lord Hamilton, speaking from the Home Office."</span></p>
-<p class="pnext"><span>"Oh, yes, my lord."</span></p>
-<p class="pnext"><span>"I say, Tempest, what is this news just to
-hand about aerial highwaymen romping half
-round the British empire, destroying wireless
-stations, and burning out the big oil tanks
-along the All-Red Route? I thought you had
-all these aerial criminals well in hand. There'll
-be a deuce of a row about all this when
-Parliament meets in two days' time."</span></p>
-<p class="pnext"><span>"Well, er--we're doing our best to deal
-with it, sir, but it will take time to lay these
-fellows by the heel, I fear."</span></p>
-<p class="pnext"><span>"Have you got the matter in hand?"</span></p>
-<p class="pnext"><span>"Yes, sir."</span></p>
-<p class="pnext"><span>"What have you done? I shall be
-bombarded with questions shortly; in fact, the
-Colonial Secretary's here now. He's complaining
-that the routes are not sufficiently well
-patrolled. What steps have you taken to deal
-with these marauders?"</span></p>
-<p class="pnext"><span>"I've wirelessed to all the aerial stations,
-to get their fastest scouts out all along the
-line at once to look for these bandits, and I'm
-staying on here all night expecting news every
-moment."</span></p>
-<p class="pnext"><span>"Very well. Keep me informed of everything
-that happens. It's becoming very
-serious. You have full powers to deal
-effectively with these criminals, and they may
-be shot down at sight if they don't respond to
-signals."</span></p>
-<p class="pnext"><span>Then, as the angry minister rang off, another
-tap was heard at the door, and the imperturbable
-Jones entered once more, and announced:</span></p>
-<p class="pnext"><span>"Message from Keane and Sharpe came in
-whilst you were speaking on the telephone, sir."</span></p>
-<p class="pnext"><span>"Good!" ejaculated Tempest, as he wiped
-the perspiration from his brow, for he had
-expected something much worse from the
-Home Secretary. "What does the message say?"</span></p>
-<p class="pnext"><span>"They received my last message, sir, and
-are on their way home by the fastest
-aeroplane. They are due at Hounslow aerodrome
-at midnight."</span></p>
-<p class="pnext"><span>"Excellent! What time is it now, Jones?"</span></p>
-<p class="pnext"><span>"It wants ten minutes to midnight, sir,
-and I have sent out the fastest car to meet
-them and bring them straight here. They
-should be here in half an hour, sir."</span></p>
-<p class="pnext"><span>"Have you told them at Hounslow?"</span></p>
-<p class="pnext"><span>"Yes, sir, and they have already got out
-the coloured lights and the ground flares."</span></p>
-<p class="pnext"><span>"You have done well, Jones, but you had
-better not leave the office to-night. I'm very
-sorry, but I may want you. This is urgent
-business; we're up against something this time,
-and unless Keane and Sharpe have found
-something out, we're going to be beaten."</span></p>
-<p class="pnext"><span>"I'll stay, sir, but what about you? This
-is your third night-sitting, and you've had
-nothing since lunch. Shall I order supper for you?"</span></p>
-<p class="pnext"><span>"Oh, thanks, Jones, but I'd forgotten.
-Yes, you may order me coffee and a sandwich,
-and get something for yourself. You're getting
-the strain as well, and I don't want you
-to break down."</span></p>
-<p class="pnext"><span>When left alone, Colonel Tempest once
-more began to pace the soft-carpeted room,
-much as a captain paces the bridge when his
-thoughts are unduly disturbed by some
-untoward event during the watch of the second
-officer. Every other minute he consulted his
-watch, and wondered why the time passed so
-slowly. Twice he rang down to the lobby
-attendant and asked if Captain Keane had
-arrived, and twice the same answer was
-returned.</span></p>
-<p class="pnext"><span>Then he looked at the maps on the wall, and
-followed with his finger the trail of the All-Red
-Route which the aerial liners followed, linking
-up the empire and half the world. Now and
-again he would glance shrewdly at the large
-map of Germany, as a skipper eyes the weather
-quarter when a storm is brewing. Occasionally
-he would murmur half aloud:--</span></p>
-<p class="pnext"><span>"A silent engine ... three hundred miles
-an hour. Gee whiz! but they have beaten
-us two to one. We shall never catch them."</span></p>
-<p class="pnext"><span>Then a slight sound caught his ears from
-outside the great building. The soft purr of
-an approaching Rolls-Royce motor and the
-sharp blast of a Klaxon horn followed.</span></p>
-<p class="pnext"><span>"At last!" he cried. "Here they come!"</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="a-midnight-consultation"><span class="bold large">CHAPTER IV</span></p>
-<p class="center pnext"><span class="bold medium">A MIDNIGHT CONSULTATION</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>The next moment the door burst open and
-two men in flying helmets and leathern coats
-entered the room, and saluted the Colonel.
-Without any ceremony the latter greeted them
-warmly, almost joyously, for their cheerful
-presence gave almost instant relief to his
-over-burdened mind.</span></p>
-<p class="pnext"><span>"Good evening, Keane. Good evening,
-Sharpe," he exclaimed, stepping forward and
-gripping each of them warmly by the hand.</span></p>
-<p class="pnext"><span>"Good evening, sir."</span></p>
-<p class="pnext"><span>"Now, have you discovered anything?"
-began the chief, without waiting for them to
-divest themselves of their heavy gear.</span></p>
-<p class="pnext"><span>Keane looked at the Commissioner for a
-second or two and then answered:--</span></p>
-<p class="pnext"><span>"Yes, and no, Colonel."</span></p>
-<p class="pnext"><span>"H'm. That means something and nothing,
-I presume."</span></p>
-<p class="pnext"><span>"Exactly, sir," continued Keane, who acted
-the part of spokesman. Then, speaking more
-solemnly, and in lowered tones, he continued,
-"We are up against something abnormal; I
-had almost said something supernatural.
-When you recalled us we were hot on the
-trail of the man who, in my opinion, is
-behind this conspiracy."</span></p>
-<p class="pnext"><span>"You mean this Professor Weissmann?"
-added the chief of the aerial police.</span></p>
-<p class="pnext"><span>Keane nodded.</span></p>
-<p class="pnext"><span>"I thought so. This man is evidently an
-evil genius of very high mental calibre, and
-he has determined, out of personal revenge
-for the defeat of Germany, to thwart the
-Allies, and in particular Great Britain."</span></p>
-<p class="pnext"><span>"He is a master-mind, and a highly
-dangerous personality; dangerous because he
-is so clever. And now that he has secured a
-few daring airmen for his tools, there is no
-end to the possibilities which his evil genius
-may accomplish before he and his crew are
-run to earth," replied Captain Keane.</span></p>
-<p class="pnext"><span>"I know it, I know it--look here!" and
-the colonel handed him the batch of cables
-and wireless messages which showed how the
-</span><em class="italics">Scorpion</em><span> had already got to work.</span></p>
-<p class="pnext"><span>"H'm! and there will be worse to follow,"
-added the airman after he had glanced through
-the list.</span></p>
-<p class="pnext"><span>"Now, tell me briefly what you have
-found, Keane, after which we must get to
-work to devise some immediate plan to
-thwart these aerial brigands. But first take
-off your flying gear, and sit by the fire,
-for you must be hungry, tired and numbed
-after that cold night ride." Then, ringing for
-his attendant, he ordered up more strong
-coffee and sandwiches.</span></p>
-<p class="pnext"><span>"Thanks, Colonel, I will not refuse. It
-was indeed a cold ride, and we had no time to
-get refreshments before leaving the aerodrome
-at Cologne this evening," said Sharpe, as he
-divested himself of his heavy gear, sat by the
-fire and enjoyed the coffee which soon arrived.</span></p>
-<p class="pnext"><span>A few moments later, the three men were
-engaged in serious conversation, although the
-hour of midnight had long since been tolled
-out by Big Ben.</span></p>
-<p class="pnext"><span>"You sent me," Keane was saying, "to
-discover the whereabouts of this great German
-engineer and man of science, this brain wave
-whose perverted genius is likely to cost us so
-dear."</span></p>
-<p class="pnext"><span>"And you were unable to find any trace
-of him?" interposed the chief.</span></p>
-<p class="pnext"><span>"Well, we were unable to come into contact
-with him, for we found that since peace was
-concluded he had vacated his professorial
-chair at Heidelberg University, where he had
-been engaged for some considerable time, not
-only on some mechanical production, but in
-an attempt to discover some unknown force,
-evidently a new kind of highly compressed gas
-to be used for propulsive purposes."</span></p>
-<p class="pnext"><span>"Had he been successful?"</span></p>
-<p class="pnext"><span>"That, it was impossible to find out during
-our short stay over there," replied Keane,
-"but I discovered from someone who had been
-in close touch with him just about the time
-peace was signed, that he had expressed
-himself in very hopeful terms."</span></p>
-<p class="pnext"><span>"Was he a very communicative type of
-man, then, did you learn?"</span></p>
-<p class="pnext"><span>"No; on the contrary, he seldom spoke
-of his work, but on this occasion, when he
-communicated this information, he was very
-much annoyed at the defeat of Germany, and
-considered that his country had been betrayed
-into a hasty peace."</span></p>
-<p class="pnext"><span>"And what happened to him after that?"
-asked the colonel.</span></p>
-<p class="pnext"><span>"Shortly afterwards he disappeared
-completely, taking with him all the apparatus
-connected with his research work, also a highly
-skilled mechanic who had been specially
-trained by him for a number of years. But
-he left not a trace of himself or his work,"
-said the captain, pausing for a moment to
-light a cigarette.</span></p>
-<p class="pnext"><span>"Do you think he is acting under any
-instructions from his authorities?"</span></p>
-<p class="pnext"><span>"No, certainly not; he distrusts his present
-Government entirely, and considers them
-traitors to the Fatherland."</span></p>
-<p class="pnext"><span>There was another brief silence, whilst
-the three men, wrapt in deep thought, sat
-looking into the fire, or watched the rings of
-tobacco smoke curling upwards to the ceiling.
-At last, Captain Sharpe observed:--</span></p>
-<p class="pnext"><span>"A powerful intellect like that did not
-suddenly disappear in this way without some
-ulterior motive, Colonel Tempest."</span></p>
-<p class="pnext"><span>"Obviously not," returned the latter briefly,
-for he was deep in contemplation, and his
-mind was searching for some clue. At length
-he turned to the senior captain and said:--</span></p>
-<p class="pnext"><span>"This silent engine theory, Keane, what
-do you think of it?"</span></p>
-<p class="pnext"><span>Keane shook his head doubtfully, and the
-colonel handed to him once more the recent
-wireless message from Delhi, adding merely:--</span></p>
-<p class="pnext"><span>"Do you think it possible?"</span></p>
-<p class="pnext"><span>"Scarcely," replied Keane carefully, "but
-with a master mind like this, one never knows.
-It will be necessary for you to consult the
-most eminent professors of science and
-chemistry at once."</span></p>
-<p class="pnext"><span>"I intend to visit Professor Verne at his
-house first thing to-morrow, or rather to-day,
-for it is already morning."</span></p>
-<p class="pnext"><span>"But the aeroplane," added Sharpe, who
-had been perusing the Delhi message, "this
-also must have been specially built for this
-new gas."</span></p>
-<p class="pnext"><span>"Given the one, the other would naturally
-follow, and would be the lesser task of the
-two, for this man is a great engineer as well,"
-said Keane.</span></p>
-<p class="pnext"><span>"It is a deep well of mystery," continued
-Tempest after another pause; "but
-something must be done at once. To-morrow the
-morning papers will be full of it. Next day
-Parliament meets, and questions will be
-asked, and it will all come upon us. I shall
-have to meet the Home Secretary as soon as
-I have interviewed Professor Verne, and Lord
-Hamilton will not be easily satisfied. The
-public will also be clamouring for information
-on the subject, and they will have to be
-appeased and calmed. The Stock Exchange
-will begin to talk also, and to demand
-compensation for the companies whose properties
-have been damaged. Insurance rates, marine
-and otherwise, will be raised, and Lloyd's
-underwriters will not fail to make a fuss.
-Now, gentlemen, what steps can we take to
-deal with these raiders in the immediate future?"</span></p>
-<p class="pnext"><span>Send us after this mystery 'plane on fast
-scouts with plenty of machine-gun ammunition,"
-urged Sharpe.</span></p>
-<p class="pnext"><span>"I cannot spare you for that, but I have
-already ordered strong patrols of aerial police
-to search for the brigands. I must have you
-here or somewhere within call. At any rate,
-I cannot let you go further than Germany.
-It may be necessary to send you there again."</span></p>
-<p class="pnext"><span>"On what account, sir?" asked Keane.</span></p>
-<p class="pnext"><span>"To find the aerodrome which this raider
-calls 'home,' for he must have a rendezvous
-somewhere if only to obtain supplies and
-repairs."</span></p>
-<p class="pnext"><span>"And that secret aerodrome must be
-somewhere in Germany, hidden away in
-some out-of-the-way place," ventured Sharpe.</span></p>
-<p class="pnext"><span>"But in what part of Germany?" asked
-the commissioner.</span></p>
-<p class="pnext"><span>"Let me see," cried Keane, rising to his
-feet, and walking across the room to where
-the large map of Germany hung upon the
-wall--"why, it must be in the Schwarzwald!"</span></p>
-<p class="pnext"><span>"The Schwarzwald!" exclaimed the other two.</span></p>
-<p class="pnext"><span>"Yes, it is by far the best hiding-place
-in the whole country. One may tramp for
-days and never see a soul. It must be
-somewhere in the Schwarzwald."</span></p>
-<p class="pnext"><span>"Then to the Schwarzwald you must go
-to-morrow, adopting whatever disguises you
-desire, and you must find this hidden spot
-where the conspiracy has been hatched,"
-concluded the colonel.</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="the-aerial-liner"><span class="bold large">CHAPTER V</span></p>
-<p class="center pnext"><span class="bold medium">THE AERIAL LINER</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>The airship liner, </span><em class="italics">Empress of India</em><span>, was
-preparing to leave her moorings, just outside
-the ancient city of Delhi, for Cairo and
-London. This mammoth airship was one of
-the finest vessels which sailed regularly from
-London, east and west, girdling the world,
-and linking up the British Empire along the
-All-Red Route. She had few passengers, as
-she carried an unusually heavy cargo of mails
-for Egypt and England, and a considerable
-amount of specie for the Bank of England.
-Several persons of note, however, figured
-amongst her saloon passengers, including
-the Maharajah of Bangapore, an Anglo-Indian
-judge, and a retired colonel of the
-Indian army.</span></p>
-<p class="pnext"><span>She was timed to depart at mid-day, and
-during the morning mailplanes had been
-arriving from every part of India with their
-cargoes of mail-bags, already sorted for the
-western trip.</span></p>
-<p class="pnext"><span>The great mammoth now rode easily with
-the wind, moored by three stout cables to the
-great tower which rose above the roof gardens
-of the air-station. An electric lift conveyed
-the passengers and mails to the summit of
-this lofty tower, from whence a covered-in
-gangway led to the long corridors which lined
-the interior of the rigid airship.</span></p>
-<p class="pnext"><span>"Have all the engines been tested?" the
-captain asks of the chief engineer, as he
-comes aboard with his navigating officer.</span></p>
-<p class="pnext"><span>"Yes, sir."</span></p>
-<p class="pnext"><span>"All the passengers aboard?" he asks next
-of the ground officer.</span></p>
-<p class="pnext"><span>"All except the maharajah, Captain, and
-I expect him any moment."</span></p>
-<p class="pnext"><span>"Excellent," replied the skipper. "There's
-a good deal of bullion aboard from the Indian
-banks, I hear, and the rajah himself is likely
-touring a lot of valuables with him, I understand,
-as he is to attend several court functions
-at St. James's Palace."</span></p>
-<p class="pnext"><span>"Yes, sir. I hope you won't meet that
-aerial raider," replied the ground officer.</span></p>
-<p class="pnext"><span>"Poof! What can he do? He can't board
-us in mid-air! Besides, I hear that the
-aerial police are on his track, and that all their
-fast scouts are patrolling the mail routes."</span></p>
-<p class="pnext"><span>"Yes, you'll have an aerial escort with
-you for the first two hundred miles, Captain.
-They'll pick you up shortly after you leave here."</span></p>
-<p class="pnext"><span>"Absolutely a waste of time. The police
-could be much better employed in searching
-for these rascals."</span></p>
-<p class="pnext"><span>"Well, perhaps you're right," replied the
-ground official. "They certainly cannot
-board you in mid-air, as you observe, and
-they cannot set you on fire as they did the
-early Zeppelins, for helium won't burn."</span></p>
-<p class="pnext"><span>This conversation was interrupted by shouts
-and cheers which reached the speakers from
-down below.</span></p>
-<p class="pnext"><span>"Hullo! here comes the rajah. I must
-go down and welcome him," said the captain,
-as a fanfare of trumpets announced the
-arrival of the great Indian chief.</span></p>
-<p class="pnext"><span>Then, with all the ceremonial and pomp
-of the East, the Maharajah of Bangapore was
-welcomed aboard the luxurious air-liner, and,
-accompanied by his personal attendants, he
-was shown with much obsequiousness to his
-private saloon. His baggage, containing
-treasures worth a king's ransom, was
-likewise transferred, under the supervision of
-his chamberlain, from the ground to his suite
-of apartments.</span></p>
-<p class="pnext"><span>The clock in the palace of the Great Mogul
-in the old city of Delhi strikes twelve, and the
-captain's voice is heard once more, as he
-speaks from the rear gondola:--</span></p>
-<p class="pnext"><span>"All ready?"</span></p>
-<p class="pnext"><span>"Yes, sir, all clear!"</span></p>
-<p class="pnext"><span>A button is pressed and the water ballast
-tanks discharge their cargo to lighten the
-ship, and then swiftly comes the final order:--</span></p>
-<p class="pnext"><span>"Let go!"</span></p>
-<p class="pnext"><span>And as the cables are slipped from the
-mooring tower, the light gangway is drawn
-back, the crowd down below cheer, and the
-giant airship backs out, carried by the force of
-the wind alone till she is well clear of the
-station. Then her engines open up gradually.
-She turns until her nose points almost due
-west, then slips away on her four thousand
-miles' journey over many a classic land,
-desert, forest and sea towards the centre of the
-world's greatest empire.</span></p>
-<p class="pnext"><span>About four o'clock that afternoon, as Judge
-Jefferson sat and talked with his friend Colonel
-Wilson in one of the rear gondolas where
-smoking was permitted, he remarked that
-this was his seventh trip home to England
-by the aerial route, and declared that he could
-well spend the rest of his lifetime in such a
-pleasant mode of travel.</span></p>
-<p class="pnext"><span>"There's no fatigue whatever," he added;
-"nothing of the jolt and jar which you get
-in the railway carriage. As for the journey
-by sea, I was so ill during my last voyage
-that I simply couldn't face the sea again.
-A storm at sea is of all things the most
-uncomfortable. If we meet with a storm on the
-air-route we can either go above it or pass on
-one side, as most storms are only local
-affairs."</span></p>
-<p class="pnext"><span>"Not to speak of the time that is
-wasted by land or sea-travel," added the
-colonel.</span></p>
-<p class="pnext"><span>"Exactly," replied the judge.</span></p>
-<p class="pnext"><span>"Only to think that in forty-eight hours we
-shall be in London, even allowing for a two
-hours' stay in Cairo to pick up further mails
-and passengers."</span></p>
-<p class="pnext"><span>"Wonderful! Wonderful!" agreed his companion.</span></p>
-<p class="pnext"><span>"And the absence of heat is some consideration,
-when travelling in a land like India,"
-continued the colonel as he flicked off the end
-of his cigar.</span></p>
-<p class="pnext"><span>"Yes. The stifling heat, particularly in
-May, June and July, when you get the hot
-dry winds, is altogether insufferable in those
-stuffy railway carriages, while up here it is
-delightfully cool and bracing, and the view
-is magnificent."</span></p>
-<p class="pnext"><span>"Hullo! what is that fine river down
-there?" asked the judge, as he looked down
-through the clear, tropical atmosphere on to
-the delightful landscape of river, plain and
-forest three thousand feet below.</span></p>
-<p class="pnext"><span>"Oh, that must be the Indus, the King
-River of Vedic poetry, a wonderful stream,
-two thousand miles in length," said the
-colonel, consulting his pocket map.</span></p>
-<p class="pnext"><span>"Can it really be the Indus?"</span></p>
-<p class="pnext"><span>"It is indeed."</span></p>
-<p class="pnext"><span>"Then we have already travelled four
-hundred miles since noon across the burning plains
-of India, and we have reached the confines of
-this wonderful land," replied Jefferson.</span></p>
-<p class="pnext"><span>"Yes, we have indeed. We shall soon
-enter the native state of Baluchistan. See
-yonder, right ahead of us, I can already make
-out the highest peaks of the Sulaiman
-Mountains. We are already rising to cross them."</span></p>
-<p class="pnext"><span>"And this evening we shall cross the
-troubled territory of Afghanistan."</span></p>
-<p class="pnext"><span>"Yes," replied the colonel, "and by midnight,
-if all goes well, we shall be sailing over Persia."</span></p>
-<p class="pnext"><span>"Persia, the land of enchantment," mused the judge.</span></p>
-<p class="pnext"><span>"And of the </span><em class="italics">Arabian Nights</em><span>, those wonderful
-tales which charmed our boyhood--the
-land of Aladdin, of the wonderful lamp, and
-the magic carpet."</span></p>
-<p class="pnext"><span>"The magic carpet," laughed the judge.
-"This is the real magic carpet. The author
-of that wonderful story never dreamt that the
-day would really come when the traveller
-from other lands, reclining in luxury, would
-be carried through the air across his native
-land, by day or by night, at twice the flight
-of a bird."</span></p>
-<p class="pnext"><span>And so these two men talked about these
-wonderful classic lands over which they were
-sailing so serenely, of Zoroaster, the great
-Persian teacher of other days, of Ahura Mazda,
-the All-Wise, and the Cobbler of Baghdad,
-until the tea-bell startled them.</span></p>
-<p class="pnext"><span>Then, finding they were hungry because the
-bracing air had made them so, they passed on
-to the snug little tea-room, where, amid the
-palm-trees and the orchids, they listened to
-soft dulcet notes from a small Indian orchestra
-which accompanied the maharajah. Here, they
-sipped delicious china tea from dainty Persian
-cups, and appeased their hunger, as best they
-could, from the tiny portions of alluring
-</span><em class="italics">patisserie</em><span> which usually accompany afternoon tea.</span></p>
-<p class="pnext"><span>But, later that evening, they did ample
-justice to a fuller and nobler banquet, which
-had been prepared for them in the gilded
-and lofty dining saloon; for they were the
-honoured guests of the Maharajah of Bangapore.
-And he entertained them right royally
-as befitted one of his princely rank.</span></p>
-<p class="pnext"><span>And in all the wondrous folk-lore and
-tradition of the ancient Persian kings, was there
-ever a more regal banquet, or one more
-conspicuous by the splendour of its oriental
-wealth than this long-protracted feast? Rich
-emblazoned goblets of gold, bejewelled with
-rare and precious gems, adorned the table,
-for the prince had brought his household
-treasures; they were to him his household
-gods, and heirlooms of priceless worth.</span></p>
-<p class="pnext"><span>Never the Lydian flute played sweeter
-music than these soft native airs which
-wandered amid the eastern skies, as, under the
-silver moon, the long, glistening, pearl-like
-airship sailed on beneath the stars, while down,
-far down below, lay the ruins of Persepolis,
-where the ancient kings of Persia slept their
-last long sleep.</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="an-up-to-date-cabin-boy"><span class="bold large">CHAPTER VI</span></p>
-<p class="center pnext"><span class="bold medium">AN UP-TO-DATE CABIN BOY</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>While the great, mammoth air-liner is racing
-like a meteor across the eastern skies, on its
-way to Cairo and London, it is necessary to
-introduce to the reader a chirpy, little fellow
-called Gadget. In fact, this cute little chap,
-who stood a matter of four feet two inches in
-his stockinged feet, deserves a chapter or two
-all to himself.</span></p>
-<p class="pnext"><span>Now Gadget did not belong to the passengers,
-nor did his name appear at all in that
-distinguished list. Neither did he rightly
-belong to the crew, except in the matter of
-his own opinion--on which subject he held
-very pronounced views. But he certainly
-did belong to the airship, and appeared to be
-part of the apparatus, or maybe the fixtures
-and effects. He certainly knew the run of
-that great liner, every nook and corner of it,
-better even than the purser or the navigating
-officer.</span></p>
-<p class="pnext"><span>To tell the truth, this insignificant but
-perky little bit of humanity was a stowaway,
-who had determined, at twelve years of age,
-to see the world, at the expense of somebody
-else. How he came aboard, and hid himself
-amongst the mail-bags, until the airship had
-sailed a thousand miles over land and sea,
-still remains a mystery. But it happened
-that, when the </span><em class="italics">Empress of India</em><span> was crossing
-the blue waters of the Adriatic sea, on her
-outward voyage, there came a tap at the
-captain's door one afternoon when the latter
-had just retired for a brief spell.</span></p>
-<p class="pnext"><span>"Come in!" called the air-skipper, in
-rather surly tones, wondering what had
-happened to occasion this interruption.</span></p>
-<p class="pnext"><span>The next instant, the chief officer entered
-the little state-room, leading by a bit of
-string, attached to one of his nether garments,
-the most tattered-looking, diminutive, but
-perky little street Arab the captain had ever
-beheld.</span></p>
-<p class="pnext"><span>"What in the name of goodness have you
-got there, Crabtree?" exclaimed the skipper,
-starting up from his comfortable bunk, at
-this apparition.</span></p>
-<p class="pnext"><span>"Stowaway, sir!" replied the officer briefly.</span></p>
-<p class="pnext"><span>"Stowaway?" echoed the captain.</span></p>
-<p class="pnext"><span>"Yes, sir."</span></p>
-<p class="pnext"><span>"Where did you find him?"</span></p>
-<p class="pnext"><span>"Didn't find him, sir. He gave himself
-up just now. Says he's been hiding amongst
-the mail-bags. What shall I do with him, sir?"</span></p>
-<p class="pnext"><span>"Tie him to a parachute and drop him
-overboard as soon as we are over the land
-again," shouted the captain in angry tones.
-"I won't have any stowaways aboard my ship."</span></p>
-<p class="pnext"><span>This was said more to frighten the little
-imp than with real intent, though the
-air-skipper spoke in angry tones, as if he meant
-what he said. He was evidently very much
-annoyed at this discovery.</span></p>
-<p class="pnext"><span>"He's half-frozen, sir," interposed the
-chief officer in more kindly tones.</span></p>
-<p class="pnext"><span>"Humph! Of course he is," added the
-captain. "This keen, biting wind at three
-thousand feet above the sea must have turned
-his marrow cold. Besides, he hasn't enough
-clothes to cover a rabbit decently. Just look
-at him!"</span></p>
-<p class="pnext"><span>The little chap's eyes sparkled, and his
-face flushed a little at this reference to his
-scant wardrobe. But he knew by the changed
-tone in the captain's voice that the worst was
-now over. He had not even heard a reference
-to the proverbial rope's-end, a vision which
-he had always associated in his mind with
-stowaways.</span></p>
-<p class="pnext"><span>"My word, he's a plucky little urchin,
-Crabtree!" declared the air-skipper at length,
-his anger settling down, and his admiration
-for the adventurous little gamin asserting
-itself as he gazed at the ragged but sharp-eyed
-little fellow.</span></p>
-<p class="pnext"><span>"What is your name, Sonny?" he asked at length.</span></p>
-<p class="pnext"><span>"Gadget, sir," whipped out the stowaway.</span></p>
-<p class="pnext"><span>"Good enough!" returned the captain
-smiling. "We've plenty of gadgets aboard
-the airship, and I guess another won't make
-much difference. What do you say, Crabtree?"</span></p>
-<p class="pnext"><span>"Oh, we'll find something for him to do,
-sir. And we'll make him earn his keep. He's
-an intelligent little shrimp, anyhow."</span></p>
-<p class="pnext"><span>"How old are you, Gadget?" asked the captain.</span></p>
-<p class="pnext"><span>"Twelve, sir!" replied the gamin.</span></p>
-<p class="pnext"><span>"Father and mother dead, I suppose?"</span></p>
-<p class="pnext"><span>"Yes, sir."</span></p>
-<p class="pnext"><span>"Been left to look after yourself, Gadget,
-I reckon, haven't you?" said the skipper
-kindly, as he gave one more searching glance
-at the small urchin, and noted how the little
-blue lips quivered, despite the brave young
-heart behind them.</span></p>
-<p class="pnext"><span>There was no reply this time, for even the
-poor, ill-treated lad could not bring himself
-to speak of his up-bringing.</span></p>
-<p class="pnext"><span>"Never mind, Gadget...!" interposed
-the skipper, changing the subject. "So you
-determined to see the world, did you, my boy?"</span></p>
-<p class="pnext"><span>"Yessir!" came the reply, and again the
-sharp eyes twinkled.</span></p>
-<p class="pnext"><span>"Well, you shall go round the world with
-me, if you are a good boy. But, if you don't
-behave, mark my words"--and here the
-captain raised his voice as if in anger--"I'll
-drop you overboard by parachute, and leave
-you behind! Do you understand?"</span></p>
-<p class="pnext"><span>The urchin promised to behave himself,
-and, in language redolent of Whitechapel,
-began to thank the captain effusively.</span></p>
-<p class="pnext"><span>"There, that will do! Take him away,
-and get him a proper rig-out, Crabtree," said
-the skipper impatiently. "I never saw such
-a tatterdemalion in all my life."</span></p>
-<p class="pnext"><span>"Come along, now, Gadget," ordered the
-chief officer, giving a little tug at the frayed
-rope, which he had been holding all this while,
-and, which, in some unaccountable way,
-seemed to hold the urchin's wardrobe together.</span></p>
-<p class="pnext"><span>This little tug, however, had dire results,
-in-so-far as the above mentioned wardrobe
-was concerned. It immediately became
-obvious that it not only served as braces to
-the little gamin, but also as a girdle, which
-kept in a sort of suspended animation Gadget's
-circulating library and commissariat. For,
-even as the janitor and his prisoner turned,
-the rope became undone, and, though Gadget
-by a rapid movement retained the nether part
-of his tattered apparel in position, yet his
-library--which consisted of a dirty,
-grease-stained, much worn volume--and his
-commissariat--composed of sundry fragments of
-dry crusts of bread wrapped in half a
-newspaper--immediately became dislodged by the
-movement, and showered themselves in a
-dozen fragments at the captain's feet.</span></p>
-<p class="pnext"><span>"Snakes alive! what have we here?"
-demanded that august person, as he stooped
-and picked up the book. Then he laughed
-outright, as he read aloud from the grubby,
-much-thumbed title page:--</span></p>
-<p class="pnext"><em class="italics">Five weeks in a Balloon</em><span> ... by Jules Verne.</span></p>
-<p class="pnext"><span>The mate grinned too. He remembered how
-that same book had thrilled him, not so long
-ago either. And, perhaps, after all, it was
-the same with Captain Rogers.</span></p>
-<p class="pnext"><span>"Where did you get this, Gadget?" asked
-the captain, reopening the conversation, after
-this little accident.</span></p>
-<p class="pnext"><span>"Bought it of Jimmy Dale, sir," replied
-the boy readily.</span></p>
-<p class="pnext"><span>"And how much did you pay for it?"</span></p>
-<p class="pnext"><span>"Gev 'im my braces, an' a piece o' tar band
-for it, sir."</span></p>
-<p class="pnext"><span>The captain ceased to laugh, and looked
-at the boy's earnest face. And something
-suspiciously like a tear glistened in the eyes
-of the airman, as he replied:--</span></p>
-<p class="pnext"><span>"You actually gave away to another urchin
-an important part of your scanty wardrobe
-to get possession of this book?"</span></p>
-<p class="pnext"><span>"Oh, it wur a fair bargen, sir. Jimmy
-found the book on a dust heap, but I wasn't
-takin' it fur nothin'. And then Jimmy never
-had any braces."</span></p>
-<p class="pnext"><span>"I see. Very well, you can go now, Gadget.
-Mr. Crabtree will find you some better clothes,
-and get you some food. Then you shall
-report to me to-morrow. See, here is your
-treasured book," said the skipper, dismissing
-the urchin once more.</span></p>
-<p class="pnext"><span>"Thank you, sir," returned the boy,
-pulling a lock of unkempt hair which hung
-over his forehead, by way of salute. "I'll
-lend you the book, sir, if you'll take care of
-it," and the chief officer smiled as he led the
-little chap away.</span></p>
-<p class="pnext"><span>So that was how Gadget became part of
-the fixtures and apparatus of the air liner.
-He was more than an adventurer, was Gadget.
-He might even have been an inventor or a
-discoverer, if he had met with better fortune
-in the choice of his parents. His sharp, young
-brain was full of great ideas.</span></p>
-<p class="pnext"><span>In less than a couple of days, rigged out in
-a smart pair of overalls, which had been very
-considerably cut down, he was soon perfectly
-at home aboard the great liner. But then
-he was so adaptable. As an up-to-date cabin
-boy, the captain declared that he never knew
-his equal.</span></p>
-<p class="pnext"><span>He became a general favourite, and in a
-very short space of time he discovered more
-about airships and internal-combustion
-engines than many a man would have learnt
-in six months.</span></p>
-<p class="pnext"><span>It was no use, therefore, to argue with the
-boy that he didn't belong to the crew of the
-</span><em class="italics">Empress</em><span>. And it just wasn't worth while to
-inform him that, as he was still of school age,
-he would be handed over to the authorities,
-or placed in a reformatory, as soon as the
-vessel returned to England. Gadget had
-made up his mind that he wouldn't. In a
-little while it even became an open question
-whether Gadget belonged to the airship or
-the airship belonged to Gadget.</span></p>
-<p class="pnext"><span>"I hain't argefyin' with you, I'm telling ye.
-This is the way it should be done!" he was
-heard to remark to one of the air mechanics
-one day, after he had been on the vessel about
-a week. The point at issue concerned a
-piece of work on which the mechanic was
-engaged, and Gadget had even dared to
-express his point of view. The extraordinary
-thing was that Gadget was right.</span></p>
-<p class="pnext"><span>Ships and railway engines were all right
-in their way, but they were not good enough
-for Gadget. Aeroplanes and airships were
-much more to his liking. He was thoroughly
-alive and up-to-date, and though some months
-ago, when this fever of world travel first
-seized upon him, he had more than once
-considered the question of stowing himself
-quietly away on some outward bound vessel
-from the West India Docks in London, his
-fortunate discovery, and ultimate possession
-of that tattered copy of </span><em class="italics">Five Weeks in a
-Balloon</em><span>, had caused him to change his views.</span></p>
-<p class="pnext"><span>Ever since reading that volume he had had
-no rest. Even his dreams had been
-mainly concerning balloons and their modern
-equivalents, airships.</span></p>
-<p class="pnext"><span>"I will see the world from an airship," he
-had confidently announced to himself one
-day. "I will sail over tropical forests and
-lagoons, over deserts and jungles."</span></p>
-<p class="pnext"><span>This had been his dream and his prayer.
-But unlike many older folk, Gadget had left
-no stone unturned in order to answer his own
-prayer. He had carefully followed the
-newspapers (for he had earned many a shilling by
-selling them) for the movements of the new
-air liner and the opening up of the All-Red
-Route. And when the time had arrived for
-the airship to sail, watching his opportunity
-the little fellow had smuggled himself on
-board, and here he was, having now almost
-sailed around the world, crossing the Arabian
-desert on the homeward voyage.</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="a-duel-with-words"><span class="bold large">CHAPTER VII</span></p>
-<p class="center pnext"><span class="bold medium">A DUEL WITH WORDS</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>Gadget's activities, however, were not
-confined merely to the duties of cabin boy,
-although his diminutive size and his rapidity
-of movement made him very useful in that
-capacity. To fetch and carry for the skipper
-or chief officer along that 670 feet of keel
-corridor was to him a life of sparkle and
-animation. But, when no particular duty
-called him, the pulsating mechanism of that
-mighty leviathan irresistibly attracted him.</span></p>
-<p class="pnext"><span>His round, closely cropped, well shaped
-head, and his roguish little face, would
-suddenly appear in the wireless cabin or in
-one of the four gondolas, where the powerful
-Sunbeam-Maori engines drove the whirling
-propellers.</span></p>
-<p class="pnext"><span>Ship's mascot and general favourite though
-he was, his sharp wits soon enabled him to
-make himself almost indispensable. At length,
-however, the everlasting call seemed to be----</span></p>
-<p class="pnext"><span>"Gadget! Gadget! Where is the little
-rascal? What mischief is he up to now?"</span></p>
-<p class="pnext"><span>For it must be admitted that the overwhelming
-curiosity of the urchin sometimes
-got him into trouble. In this respect he had
-particularly fallen foul of Morgan, the third
-engineer, a short, stout, somewhat stumpy
-type of Welshman, whose spell of duty
-generally confined his activities to the care of
-the twin-engines in the rear gondola.</span></p>
-<p class="pnext"><span>It appears that Gadget had unwittingly
-broken the rules and regulations of the airship
-by smuggling two parcels of tobacco aboard
-during a brief stay in one of the air ports.
-He knew full well that a little fortune awaited
-the man who could unload smuggled tobacco
-down the Whitechapel Road, and the temptation
-had been too great for him. He had been
-discovered, however, and the captain had
-punished him for the offence.</span></p>
-<p class="pnext"><span>Now, Gadget was still smarting under this
-punishment when one day he startled the
-third engineer by his sudden and unlooked for
-appearance in the rear gondola.</span></p>
-<p class="pnext"><span>"How now, you little rascal!" exclaimed
-Morgan, throwing a greasy rag at the boy.
-"How much did you make on that tobacco?"</span></p>
-<p class="pnext"><span>"Stop smokin' on dooty, will yer, an'
-mind yer own bisness!" rasped out the urchin,
-feeling that both his dignity and importance
-were being imperilled by this reference to his
-recent offence.</span></p>
-<p class="pnext"><span>"Go away!" snarled the bad-tempered
-Welshman, surreptitiously hiding the still
-smoking cigarette.</span></p>
-<p class="pnext"><span>"Yah! Why don't yer get more 'revs'
-out o' those rear engines?" yapped the
-insulting little Cockney boy, repeating a few
-words used by the captain himself the day
-before, and preparing to beat a hasty retreat
-through the doorway.</span></p>
-<p class="pnext"><span>"You dirty ragamuffin!" shouted the
-stout man, flushing with anger, and hurling
-the oil can, which he held in his hand, at the
-gamin.</span></p>
-<p class="pnext"><span>For one instant the tantalising little street
-arab disappeared on the other side of the door,
-but, when the missile had spent its force,
-and had crumpled up against the panelling,
-leaving a pool of oil on the floor, the urchin's
-head reappeared once more. The opportunity
-was too good to be lost. All the vivacity of
-the boy was pitted against the hot tempered
-Welshman, and Gadget was a master of
-invective, and had a wonderful command of high
-sounding words, the real meaning of which,
-however, he did not properly understand.
-But he was just dying for another of these
-encounters, so common in his experience of
-things down Stepney way, or along the West
-India Dock Road.</span></p>
-<p class="pnext"><span>"Call yerself an ingineer?" came the next
-gibe from the saucy, impudent little face,
-now distorted into something grotesque and
-ugly. "We'll be two hours late at Cairo,
-an' all because you ain't fit to stoke a
-donkey-ingine."</span></p>
-<p class="pnext"><span>"Ger-r-r-o-u-t!" shouted the angry man,
-making a rush for his tormentor. "I'll break
-your head if you come in here again!"</span></p>
-<p class="pnext"><span>"I'd like ter see yer!" came the tart
-reply, ten seconds later, as the head
-reappeared once again, for Gadget had retreated
-swiftly some way down the keel corridor, as
-his opponent made for him with a huge
-spanner.</span></p>
-<p class="pnext"><span>The engineer had determined to lock the
-door of the little engine-room against the
-little stinging gad-fly, but of course the
-sharp-witted rascal had outwitted, or
-"spike-bozzled" him, as they say in the Air Force,
-by snatching the key and locking the
-communication-door on the outer side.</span></p>
-<p class="pnext"><span>Morgan was beginning to find out to his
-cost that it was a very unwise proceeding
-to cross the path of this pertinacious
-stowaway. He could not get rid of him, and this
-morning, after the skipper's recent remarks,
-he was trying to recover his lost reputation
-by extra attention to his engines. Besides,
-the captain would be along on his rounds
-again soon, and, if the engines were not doing
-their accustomed revolutions, there might be
-trouble.</span></p>
-<p class="pnext"><span>Thinking he had now got rid of his tormentor,
-Morgan turned to examine his engines,
-when the key turned softly in the lock once
-more, and the irrepressible mascot, peering
-through the slightly open door, grinned, and
-then gave vent to the one word, which means
-so much:--</span></p>
-<p class="pnext"><span>"Spike-bozzled! Yah!"</span></p>
-<p class="pnext"><span>"You're a little villain!" roared the engineer.</span></p>
-<p class="pnext"><span>"You're an incubus!" retorted Gadget.</span></p>
-<p class="pnext"><span>"Go away!"</span></p>
-<p class="pnext"><span>"Swollen head, that's what you've got!"</span></p>
-<p class="pnext"><span>"By St. David, if I catch you, I'll----"
-cried the now exasperated Welshman.</span></p>
-<p class="pnext"><span>"Abnormal circumference--distended
-stummick, that's what you're sufferin' from.
-The capten says so!" replied Gadget as a
-parting shot.</span></p>
-<p class="pnext"><span>This ungentle reference to his personal
-symmetry was too much for the engineer, and
-he made another wild rush in the direction
-of his opponent. This time, Gadget had no
-opportunity to lock the door, but, turning
-round, he bolted precipitately down the long
-keel corridor, cannoning into the chief officer,
-who was just coming along to the rear
-gondola, and receiving a somewhat violent cuff
-on the head from that dignified official, whose
-gravity had been gravely endangered by this
-sudden encounter.</span></p>
-<p class="pnext"><span>"Here, you little rascal, take that!" cried
-the angry officer, and Gadget, glad to get
-away on such slight terms, and feeling that
-he had given his opponent value for his
-money, scampered off, and made his way
-to the wireless cabin.</span></p>
-<p class="pnext"><span>Here he assumed immediately an attitude
-of respectful attention, and even prevailed
-on the officer in charge to give him another
-lesson on the Morse code, for the urchin had
-a wonderful range of feeling which enabled
-him at a moment's notice to adapt himself
-to the circumstances of his environment.</span></p>
-<p class="pnext"><span>"Wonderful, Gadget! You're making rapid
-progress. You shall have a lesson in taking
-down messages, to-morrow. You have the
-making of a good wireless operator in you.
-I shall speak to the captain about it."</span></p>
-<p class="pnext"><span>"Thank you, sir," replied the </span><em class="italics">gamin</em><span>,
-pulling his lock of hair by way of salute.
-This lock of hair, by the way, at the urchin's
-special request, had been left there, when the
-famous "R. D. clippers" had shorn off the
-rest of the crop, when the airship's barber
-had overhauled and close-reefed him, soon
-after his first encounter with the captain.</span></p>
-<p class="pnext"><span>Gadget's next visit was to the little
-photographic cabin, where the wonderful negatives
-and bioscope films were carefully prepared.
-These were to record to the world at large
-the wonderful panorama of the earth and
-sky, photographed from the great air-liner
-on her wonderful trip.</span></p>
-<p class="pnext"><span>Here, again, by his artful, winning way,
-which Gadget knew how to adopt when
-circumstances demanded it, the little urchin
-was on good terms with the photographic
-officer. The latter, who admired the boy's
-character and wit, and pitied his upbringing,
-had declared more than once that Gadget
-possessed in a large degree that intuitive
-genius which belongs to greatness, and
-prophesied a brilliant future for the neglected
-boy, if only he could be properly trained.</span></p>
-<p class="pnext"><span>"Come to me for an hour a day, Gadget,
-when the captain does not require your
-services, and I will teach you photography. Some
-day you shall have a camera of your own,
-and who knows, you may become a great film
-operator." And the grateful boy was only
-too quick to learn what these skilful operators
-had to teach.</span></p>
-<p class="pnext"><span>So, into this new life of adventure and
-travel, this little urchin entered with all the
-zest and enthusiasm of which he was capable,
-making many friends, and an occasional
-enemy. And all the while the great airship,
-glistening in the tropical sun, sailed on across
-the wide stretch of desert which lies between
-India and Egypt, along the line of the
-thirtieth parallel.</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="sons-of-the-desert"><span class="bold large">CHAPTER VIII</span></p>
-<p class="center pnext"><span class="bold medium">SONS OF THE DESERT</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>The tropical sun looked fiercely down upon
-the burning sands of the Hamadian Desert.
-North, south, east and west, as far as the
-eye could reach, in every direction, the
-illimitable waste of desert stretched, save only
-at one pleasant, fertile spot, where a cluster
-of date and lofty palm trees fringed the banks
-of a silent pool.</span></p>
-<p class="pnext"><span>A small encampment of Bedouins, sons of
-the desert, fierce-looking and proud, occupied
-this charming spot. Three small tents and
-a larger one, a camouflaged fabric, part of
-the loot of the garrison of Kut, completed
-the camp. There were a dozen men all told,
-and as many noble, fiery Arab steeds. The
-men were well armed, with modern weapons,
-too. There had been too much loot in the
-Mesopotamian campaign during recent years
-for the Arab sheik and his followers to find
-much difficulty in securing the very pick of
-European weapons, ammunition and equipment.
-But one thing was evident--all these
-men were not real sons of the desert. Three
-of them at least were Europeans, as the reader
-will shortly perceive.</span></p>
-<p class="pnext"><span>An atmosphere of subdued excitement,
-primed with expectancy, seemed to pervade
-the camp. The whole party were eagerly
-watching and waiting for something. But
-what caravan, with its tinkling bells, its camels
-and spices, its rich silks and ladings from
-Persia or from Damascus had awakened the
-predatory instincts of these kings of the
-desert? Besides, were they not too few in
-number to engage a well-armed band of
-Baghdad merchants?</span></p>
-<p class="pnext"><span>Nay, it was no rich argosy of the desert
-that these fierce men expected; their eyes
-were directed one and all towards the skies,
-for the days had now arrived of which the
-poet spoke, when he</span></p>
-<blockquote>
-<div>
-<div class="line-block outermost">
-<div class="line"><span>"Saw the heavens filled with commerce,</span></div>
-<div class="inner line-block">
-<div class="line"><span>Argosies of magic sails,</span></div>
-</div>
-<div class="line"><span>Pilots of the purple twilight,</span></div>
-<div class="inner line-block">
-<div class="line"><span>Dropping down with costly bales;"</span></div>
-</div>
-</div>
-</div>
-</blockquote>
-<p class="pfirst"><span>and they were awaiting, with evil intent, the
-passing of the Aerial Mail, which they knew
-to be carrying vast treasures of gold and
-other precious things from India to Cairo and
-Europe.</span></p>
-<p class="pnext"><span>The three Europeans who had collected
-and organised these robber chiefs, by appealing
-to their hereditary instincts, were none other
-than our friends, Rittmeister von Spitzer,
-and his companions Carl and Max, the
-German irreconcilables, whom we left in the
-dark shadows of the Schwarzwald preparing
-for their adventure.</span></p>
-<p class="pnext"><span>Already they had made a name greater
-than Muller of the </span><em class="italics">Emden</em><span>, but they had made
-themselves outlaws of the nations of the
-world, and though for a little while success
-and fame might attend them, yet they knew
-that sooner or later the agreed price of their
-adventure would be death.</span></p>
-<p class="pnext"><span>"What news of the British air-liner, Max?"
-called von Spitzer, as his subordinate
-descended by a rope ladder from one of the
-smaller trees, where an observation post had
-been fixed, and an aerial mounted, for
-the purposes of wireless telegraphy and
-telephony.</span></p>
-<p class="pnext"><span>"She left Delhi at mid-day yesterday,
-sir," replied the operator, unclamping the
-receivers which till now had been fixed over
-his ears.</span></p>
-<p class="pnext"><span>"Then she's running to scheduled time?"</span></p>
-<p class="pnext"><span>"Yes, sir."</span></p>
-<p class="pnext"><span>"Was it the official departure message
-that you tapped?"</span></p>
-<p class="pnext"><span>"It must have been, Rittmeister, for it
-announced that a distinguished passenger
-had joined her at the last moment."</span></p>
-<p class="pnext"><span>"Indeed! What was his name? Did
-you discover it?" asked the flight-commander,
-who, to maintain his influence over
-the wild sons of the desert, was wearing the
-loose, flowing robes of an Arab sheik, richly
-emblazoned and adorned.</span></p>
-<p class="pnext"><span>"His name was the Maharajah of Bangalore,"
-replied Max, the erstwhile Gotha pilot.</span></p>
-<p class="pnext"><span>"What! the miscreant! He was the man
-who raised thirty thousand Indian troops
-for the Mesopotamian campaign, and made
-it possible for the British to advance on
-Baghdad after their disaster at Kut."</span></p>
-<p class="pnext"><span>"That accounts for it. He is to be
-decorated at St. James's Palace for some
-eminent services he has rendered to the
-British Government."</span></p>
-<p class="pnext"><span>"We're in luck's way, Max. I may spare
-his life, as I do not seek to take any man's
-life who does not oppose me. But it's a
-thousand to one he's carrying his jewels and
-his household gods with him; it is the custom
-of these eastern potentates. I will strip
-him as the locust strips the vine. I will give
-his jewels to these brave Arabs; it will
-confirm my hold upon them. We may need
-their help upon another occasion. But, this
-is by the way, was there anything from the
-professor?"</span></p>
-<p class="pnext"><span>"Only this, Rittmeister; I have waited
-since dawn for it," and the operator handed
-to Spitzer a cryptic message of seven letters,
-which, to the receiver at least was quite
-unintelligible. Max had pencilled it down as
-follows:--"X--G--P--C--V--S--M," for it
-had come through the ether by wireless
-telegraphy and not by wireless telephone, like
-the first message. The reason was obvious.
-One message was for public intelligence and
-for use in the newspapers, and the other was
-for more secret and sinister purposes. The
-cryptogram had come from the professor,
-who, with his mechanic, had been left behind
-in the Schwarzwald to collect information
-for the brigands, and to obtain further supplies
-of uranis for the </span><em class="italics">Scorpion</em><span>.</span></p>
-<p class="pnext"><span>The Rittmeister eagerly grasped the little
-strip of paper on which the message was
-written, and retired to the small hangar where
-the </span><em class="italics">Scorpion</em><span> was pegged down and stowed
-away, remarking:--</span></p>
-<p class="pnext"><span>"This is evidently urgent; I must get the
-cipher-key and decode it at once. Meantime,
-I want you to rehearse the men in the parts
-they are to play, and give Carl a hand with
-the vibration drum. The great liner is
-almost due. You may tell the sheik that
-in addition to the large cargo of gold which
-the airship carries, an Indian Prince with
-jewels worth a king's ransom is on board."</span></p>
-<p class="pnext"><span>"Your orders shall be carried out,
-Rittmeister," replied Max, who was glad to be
-relieved of his monotonous task of listening
-hour after hour for coded messages, and
-looked forward with some pleasure to the
-coming adventure.</span></p>
-<p class="pnext"><span>Shortly afterwards, Max, having delivered
-his message to the Arabian chief, was standing
-beside Carl under the shadow of a cluster of
-trees on the very margin of the pool. That
-wonderful instrument, the vibrative drum,
-which is fashioned somewhat on the principle
-of the human ear, but with a large horn-shaped
-receptacle for receiving the very minutest
-sound waves, and focussing them on to a very
-sensitive drum, was engaging their attention.</span></p>
-<p class="pnext"><span>Every now and then, when they fancied
-they heard a sound that broke the stillness of
-the desert, they would listen acutely, turning
-the horn this way and that way to discover
-whence came the sound.</span></p>
-<p class="pnext"><span>"They are due about mid-day, the chief
-says," remarked Carl, after a brief pause in
-their conversation. "What time do you
-make it now?"</span></p>
-<p class="pnext"><span>"A quarter of an hour yet," responded
-Max, consulting his chronometer, and making
-a rapid calculation to allow for the difference
-in longitude, for he still carried Central
-European time.</span></p>
-<p class="pnext"><span>"And they're sure to follow the 30th parallel?"</span></p>
-<p class="pnext"><span>"Yes, it's their shortest route," replied
-the wireless expert.</span></p>
-<p class="pnext"><span>"Then they should pass within three or
-four miles from here," observed Carl.</span></p>
-<p class="pnext"><span>"Yes, unless they've drifted a little out
-of their course."</span></p>
-<p class="pnext"><span>"But we should hear them on the vibrator
-even if they were fifty miles away in a silent
-land like this."</span></p>
-<p class="pnext"><span>"Undoubtedly."</span></p>
-<p class="pnext"><span>"Listen! Can you hear anything?" exclaimed
-Max in a slightly nervous tone, after
-a brief silence.</span></p>
-<p class="pnext"><span>"No, I don't think so, but those fellows
-over there must be quiet; they're getting
-excited about the promised loot."</span></p>
-<p class="pnext"><span>"Go and tell them, Carl; you speak the
-best Arabic."</span></p>
-<p class="pnext"><span>The German left the drum for a moment
-and after expostulating for a while with the
-sheik, he gained his point and the word was
-passed along for silence.</span></p>
-<p class="pnext"><span>The Arabs were greatly mystified by this
-strange instrument, as well as by those aerial
-wires affixed to the trees, and most of all
-by that strange, weird machine, hidden away
-behind the sand-proof curtains of the little
-camouflaged hangar, like the sacred ark in
-the holy of holies.</span></p>
-<p class="pnext"><span>With wondering eyes they had on occasion
-watched the </span><em class="italics">Scorpion</em><span> mount to the heavens
-with marvellous ease and descend with like
-facility--bearing its human burden aloft to the
-very skies and bringing them safely to earth
-again.</span></p>
-<p class="pnext"><span>These strange gods which the infidels had
-brought with them to their desert home were
-greatly feared even by these brave, proud
-men, and it was only the largesse and the
-promise of still better things to come, from
-the great white chief, which prevented these
-sons of the desert from leaving this dreaded
-spot.</span></p>
-<p class="pnext"><span>The scout pilot, having obtained his wish,
-now returned to the instrument, for his
-companion was already beckoning to him.
-Evidently the approach of the airship had
-been indicated by the sensitive drum, but,
-ere Carl reached the margin of the pool, he
-noticed the Rittmeister emerge from the
-hangar where he had been decoding the
-message, and wave for him to approach.</span></p>
-<p class="pnext"><span>"What is it, Rittmeister?" he called.</span></p>
-<p class="pnext"><span>"The message. Come here a moment!"</span></p>
-<p class="pnext"><span>Max, who thought that a faint sound he
-had just heard from the instrument might
-portend the distant approach of the liner,
-left the drum, for he knew there would be
-plenty of time, and joined the other two by
-the hangar on the other side of the pool,
-for he also was curious about the cryptic
-message, which he had taken earlier in the day.</span></p>
-<p class="pnext"><span>"Was it from the professor?" he asked
-in his first breath.</span></p>
-<p class="pnext"><span>"Yes, he is in for a bad time, I fear,"
-replied the Rittmeister. "He will not be
-able to communicate again for some time."</span></p>
-<p class="pnext"><span>"What is the matter?" asked the others
-simultaneously.</span></p>
-<p class="pnext"><span>"Why, Keane and Sharpe are on his
-track again. You know the rascals; they
-were secret service pilots and spies during
-the war, and now they are scout pilots in the
-British aerial police. They're the left-hand
-and the right hand of that confounded Tempest,
-the little tin god at Scotland Yard, and
-the brains of the aerial police."</span></p>
-<p class="pnext"><span>"Himmel! I hope he can outwit them,"
-exclaimed Carl. "They're keen birds, both
-of them, and they have some exploits to their
-credit."</span></p>
-<p class="pnext"><span>"If he can't, then the length of our existence
-is the capacity of those remaining eight
-cylinders of uranis," ventured Max.</span></p>
-<p class="pnext"><span>"And the length of the rope round our
-necks as well," murmured his companion.</span></p>
-<p class="pnext"><span>They all laughed at this, but Spitzer looked
-keenly for an instant into the eyes of the
-two pilots, as though he would search their
-innermost souls, and make sure that they
-would be game to the end. But they
-evidently read his thoughts also, for Max
-announced:--</span></p>
-<p class="pnext"><span>"It's all right, Rittmeister; we're not going
-back upon our word. The die is cast!" and
-Carl in a brave attempt at another sally,
-added:--</span></p>
-<p class="pnext"><span>"The cast is--die!" at which they all
-laughed again, as the old sea pirates laughed
-before they blew up their ship, when they
-saw that the game was up.</span></p>
-<p class="pnext"><span>The next instant their thoughts were
-diverted to another subject. It was already
-mid-day, for the sun by his altitude announced
-it. As they approached the drum, they
-could now distinctly hear the hum of mighty
-engines though still forty miles away, recorded
-in that delicate instrument, and one thought,
-uttered or unexpressed, came instinctively to
-each mind:--</span></p>
-<p class="pnext"><span>"Aircraft approaching!"</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="the-phantom-bird"><span class="bold large">CHAPTER IX</span></p>
-<p class="center pnext"><span class="bold medium">THE PHANTOM BIRD</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>"Airship or aeroplane?" asked von Spitzer,
-a moment later, as Carl closely watched the
-delicate recorder, which, as the vibration
-caused by the sound waves increased,
-indicated not only the type of craft, but the type
-of engine by which it was driven, and also
-whether the engine was running with or
-without defects. So wonderful are the secrets
-which man has already wrested from nature.</span></p>
-<p class="pnext"><span>"Airship, decidedly!" replied Carl, after
-a second's pause. "Full-powered too; there
-are four or five Sunbeam-Maori engines, and
-all running smoothly."</span></p>
-<p class="pnext"><span>"Her position?" demanded the Rittmeister next.</span></p>
-<p class="pnext"><span>"Forty-four miles due east," came the answer.</span></p>
-<p class="pnext"><span>"Then it must be the aerial mail from
-India; she is just about due."</span></p>
-<p class="pnext"><span>"Is she steering due west?" the chief asked.</span></p>
-<p class="pnext"><span>"About two degrees south, that's all,"
-replied Carl. "She's evidently getting a
-little drift from the upper currents."</span></p>
-<p class="pnext"><span>"Good!" remarked the chief airman.
-"Then if she continues steering steady, she
-should pass within a couple of miles of us in
-another twenty or twenty-five minutes. Come
-along, Carl, it is time for us to get away.
-You will remain on the ground, Max. You
-have a difficult job. As soon as we get
-away, see that the tents are struck, and all
-men and horses placed under cover of the trees."</span></p>
-<p class="pnext"><span>"Yes, sir."</span></p>
-<p class="pnext"><span>"And now sound the alarm signal, and
-help us to get out the </span><em class="italics">Scorpion</em><span>; it is going to
-bite to-day," ordered the Rittmeister as he
-strode away, exclaiming,</span></p>
-<p class="pnext"><span>"Who wouldn't be a king of the desert?
-For one day at least it will be, '</span><em class="italics">Deutschland,
-Deutschland ueber alles</em><span>!'"</span></p>
-<p class="pnext"><span>The alarm being sounded, all the occupants
-of the little camp went to quarters, just as
-they had been rehearsed during the last few
-days. The camouflaged fabric was stripped
-from the little hangar, and the </span><em class="italics">Scorpion</em><span>
-was set free to bite once more. She was
-released from the ropes which held her down
-and turned head to wind. The steel folding
-wings were snapped back into their sockets
-and made secure.</span></p>
-<p class="pnext"><span>"Are you ready, Carl?" asked the chief,
-as he completed his rapid survey of the
-machine, during which neither the propellers,
-planes, tail-fin nor rudder escaped
-his scrutiny.</span></p>
-<p class="pnext"><span>"Aye, ready, sir!" came the reply from
-the junior, who was now seated in the armour-plated
-conning-tower, testing the controls and
-examining his machine guns.</span></p>
-<p class="pnext"><span>Without a moment's delay the chief
-clambered up through the little trapdoor and
-joined his companion. Then he paused for a
-moment whilst he swept the eastern horizon
-with his powerful binoculars.</span></p>
-<p class="pnext"><span>"I cannot see her yet, Carl," he said. Then
-turning to Max, who stood by the starboard
-engine, he shouted, "Just try to pick up her
-position again from the drum. She may have
-changed her course a trifle."</span></p>
-<p class="pnext"><span>The Gotha pilot dashed off on his errand,
-and after carefully listening for a moment, he
-returned and said, "East-south-east, about
-four degrees east."</span></p>
-<p class="pnext"><span>"Good, she'll pass about five miles south of
-us then; but she's not visible yet," replied
-Spitzer.</span></p>
-<p class="pnext"><span>"She's getting a good deal of drift, I
-fancy," returned Max.</span></p>
-<p class="pnext"><span>"Anyhow, we'll get up into the blue and
-wait for her," said the airman, and waving
-his hand for the signal to stand clear, he
-pressed the self-starting knob, and instantaneously
-both engines sprang into life, and the
-whirring propellers started up such a dust
-storm from the loose sand of the desert that
-the Arabs were startled, and rushed to secure
-their frightened steeds.</span></p>
-<p class="pnext"><span>Within ten seconds the rev.-counter
-indicated two thousand five hundred, and,
-sufficient power for flying speed being thus
-obtained, Max deftly removed the chocks from
-the wheels, and this new type of desert steed
-dashed off across the sands, and leapt into
-the air, amid the cheers of the astonished
-Bedouins.</span></p>
-<p class="pnext"><span>"Allah, the Compassionate, the Merciful!"
-cried the Arab chief, as he raised his
-hands imploringly towards heaven. "It is
-the bird of destiny, my children, the phantom
-of the desert!" and Max could scarcely
-restrain a smile as he beheld the momentary
-fear which had seized these strong, fierce men.</span></p>
-<p class="pnext"><span>The next moment, however, they were all
-busy striking the tents and bringing horses,
-equipment, and all the camp effects under the
-shadow of the trees.</span></p>
-<p class="pnext"><span>Meanwhile the </span><em class="italics">Scorpion</em><span>, appearing exactly
-like a huge grey phantom bird, soared
-away in a north-westerly direction, lest it
-should be observed by the occupants of the
-approaching liner.</span></p>
-<p class="pnext"><span>And in a few minutes, rising rapidly by steep
-spirals, and an almost vertical climb, it had
-disappeared from sight. Soon it soared over
-the camp again at ten thousand feet, and
-appeared but a speck in the cloudless blue,
-like the faintest suspicion of a tiny cirrus cloud.</span></p>
-<p class="pnext"><span>Shortly afterwards a cry from one of the
-natives directed the attention of all present
-towards another tiny streak in the opposite
-direction. His sharp, piercing eyes had been
-the first to discern the approaching airship.</span></p>
-<p class="pnext"><span>"Allah, the Compassionate!" again began
-the sheik, and Max, fearing that this strange
-visitant might affect their nerves, called out
-aloud in the best Arabic he could muster:--</span></p>
-<p class="pnext"><span>"Allah be praised! This stranger carries
-gold and rare jewels across the desert. He
-must pay tribute to the sons of Jebel and Shomer!"</span></p>
-<p class="pnext"><span>This appeal to their cupidity instantly
-changed the demeanour of these fanatics.
-Their fear departed. Even when, later, they
-heard the roar of the powerful engines which
-propelled the airship, their one thought was
-of plunder.</span></p>
-<p class="pnext"><span>"The treasures of twenty Damascus'
-caravans are in that great airship," cried
-Max, fulfilling with considerable skill the
-part which Spitzer had allotted to him.</span></p>
-<p class="pnext"><span>The Bedouins, whose feelings were now
-raised to the highest pitch of excitement,
-began to fear lest, after all, so rich a prize
-might be lost, and they eagerly searched
-the skies for the phantom airman, as they
-called the Rittmeister, and shouted:--</span></p>
-<p class="pnext"><span>"Where is the phantom bird? Where
-is the great white sheik?" and they
-would have dashed out into the desert on
-their fiery steeds, for they were already
-mounted, but the German restrained them,
-saying:--</span></p>
-<p class="pnext"><span>"There is no need to hunt the quarry. The
-great white sheik will bring down the airship
-on this very spot. Be ready, when I give the
-signal, to surround it."</span></p>
-<p class="pnext"><span>Another anxious moment passed, and the
-airship, travelling rapidly at some three
-thousand feet above the ground, would have
-passed them by some few miles to the south,
-but at that instant, the Indian judge caught
-sight of the picturesque oasis with its cluster
-of palms far down below, and said to his
-soldier companion:--</span></p>
-<p class="pnext"><span>"Look, Colonel Wilson! Just look at that
-beauty spot after two hundred miles of yellow
-desert."</span></p>
-<p class="pnext"><span>"Ah, wonderful!" exclaimed the delighted
-soldier. "It is a little garden planted by
-Nature in the solitary wastes."</span></p>
-<p class="pnext"><span>"How picturesque! I should like to
-land there," returned the other.</span></p>
-<p class="pnext"><span>"Let us ask the captain at least to change
-his course slightly, so that we may pass over
-it and photograph it as a souvenir of our
-pleasant journey," said the officer.</span></p>
-<p class="pnext"><span>At that moment the captain, passing down
-the gangway, overheard the remark, and being
-eager to oblige his distinguished passengers,
-he telephoned his orders to the navigating
-officer, who slightly altered the ship's
-course, so as to pass almost directly over the
-oasis.</span></p>
-<p class="pnext"><span>It was while they were engaged in delightful
-contemplation of this emerald isle embedded
-in the gold of the desert, that another object
-attracted the attention of the judge. Chancing
-to glance upwards, he caught sight of a
-silvery speck six thousand feet above them,
-and a little way on their beam.</span></p>
-<p class="pnext"><span>"See, a tiny cloudlet in the sky; the first
-I have ever seen in crossing these deserts."</span></p>
-<p class="pnext"><span>"A cloud, where?" asked his companion.</span></p>
-<p class="pnext"><span>"There, right up in the blue vault of
-heaven," said the judge, pointing out the
-speck which now seemed to have grown larger.</span></p>
-<p class="pnext"><span>"Why, it is a bird; some great vulture of
-the desert. It seems to be diving right down
-upon us! These vultures, I hear, have often
-attacked the airships in the desert. It
-evidently takes us for some new kind of prey."</span></p>
-<p class="pnext"><span>"A bird!" cried the captain, who had now
-joined the speakers. "Let me see it?"</span></p>
-<p class="pnext"><span>"There it is!" cried the two men simultaneously,
-pointing out the grey, swift phantom.</span></p>
-<p class="pnext"><span>The captain saw the bird-like object, and
-one glance sufficed.</span></p>
-<p class="pnext"><span>"It is an aeroplane," he said, and there was
-just a touch of uneasiness in his voice.</span></p>
-<p class="pnext"><span>"An aeroplane?" echoed the others, and
-an instant later, viewing it through his glasses,
-the colonel added:--</span></p>
-<p class="pnext"><span>"Why, so it is; but I say, Captain, what
-a peculiar type of aeroplane! It is one of the
-patrols, I expect, come to meet us."</span></p>
-<p class="pnext"><span>"Your glasses, if you please, for one
-moment," asked the captain, and he almost
-snatched them from the hands of the officer.</span></p>
-<p class="pnext"><span>The next instant a violent expletive burst
-from the captain's lips.</span></p>
-<p class="pnext"><span>Leaving his companions, he dashed down
-the corridor to the wireless operator's room.
-The operator was already engaged in
-conversation with the aerial visitor by means of
-the wireless telephone, and the captain took in
-the situation at a glance.</span></p>
-<p class="pnext"><span>"What does he want? Who is he?"
-blurted out the skipper.</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="the-brigand-of-the-eastern-skies"><span class="bold large">CHAPTER X</span></p>
-<p class="center pnext"><span class="bold medium">THE BRIGAND OF THE EASTERN SKIES</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>"Someone has signalled us to stop, Captain!"
-said the wireless operator.</span></p>
-<p class="pnext"><span>"Who is it?" demanded the irate skipper.</span></p>
-<p class="pnext"><span>"He will not declare himself, sir!"</span></p>
-<p class="pnext"><span>"Hand me that receiver, Robson!" and the
-commander, clamping the ear-piece of the
-wireless telephone to his ear, asked of the
-intruder, "Who are you that thus dares to
-order me to stop on a lawful voyage?"</span></p>
-<p class="pnext"><span>"It is I, Sultan von Selim, Air-King of the
-Hamadian Desert, who orders you to stop!"
-came the reply from the aerial raider, who
-now rode just a little way above the large
-airship, and on the starboard side.</span></p>
-<p class="pnext"><span>"Then I refuse!" thundered the skipper.</span></p>
-<p class="pnext"><span>"You will do so at your peril," came the
-quiet, cool reply, which rather disconcerted
-the captain.</span></p>
-<p class="pnext"><span>"I will call up the patrols, you brigand!"
-continued the commander of the liner.</span></p>
-<p class="pnext"><span>"One word to the patrols and I will blow
-your wireless to pieces. I have two guns
-already trained on it," replied the air-king.</span></p>
-<p class="pnext"><span>"I dare you to do it!" replied the brave
-skipper. Then, turning to the operator, he
-said, "Send the S.O.S. with the latitude and
-longitude to the patrols. Smartly there,
-Robson."</span></p>
-<p class="pnext"><span>"Yes, sir."</span></p>
-<p class="pnext"><span>"This is that raider we heard of at Delhi,
-but he can't touch us."</span></p>
-<p class="pnext"><span>The raider, however, had caught the
-sentence, or part of it, and he understood the
-order. The next instant a burst of fire from
-a machine gun, trained with wonderful
-accuracy, blew the main part of the wireless
-apparatus to pieces, and rendered it perfectly
-useless for either receiving or transmitting.
-How the captain and the operator escaped
-injury or death will for ever remain a mystery.</span></p>
-<p class="pnext"><span>Seizing a megaphone, the former dashed out
-of the cabin, down the keel corridor and the
-narrow slip-way, to the central touring gondola
-on the starboard side, and, shaking his fist at
-the raider, who sailed calmly alongside about
-a hundred feet away, shouted through the
-instrument: "You brigand! You shall hang
-for this!"</span></p>
-<p class="pnext"><span>A mocking laugh, drowned by the roar of
-the engines, which still continued full speed
-ahead, was the only reply. Evidently this
-mad airman was enjoying the fun immensely.
-At any rate he appeared very careless of the
-other's threats.</span></p>
-<p class="pnext"><span>"I mean it, you felon!" roared the skipper.</span></p>
-<p class="pnext"><span>"Are you going to heave to?" came the
-the reply through the raider's megaphone.</span></p>
-<p class="pnext"><span>"No, certainly not!"</span></p>
-<p class="pnext"><span>"Then you must take the consequence!"
-came the mocking taunt, and the next
-instant, "Rep-r-r-r-r-r-r-r!" came another
-burst from that deadly machine-gun, which
-seemed so effective every time it spoke.</span></p>
-<p class="pnext"><span>This time the starboard engine, a 250-H.P. motor,
-conked out entirely, and, for a moment,
-there was danger of fire in the gondola, owing
-to the petrol-feed being smashed in the general
-break-up.</span></p>
-<p class="pnext"><span>This made the captain think furiously. He
-now recognised, for the first time, that he was
-absolutely at the mercy of this strange
-highwayman of the air. Evidently he was a
-determined character, a master criminal, and
-the skipper looked round for some means
-of defence.</span></p>
-<p class="pnext"><span>There was certainly an old machine-gun
-aboard the airship, but it had never been used
-and was not even mounted, for it was
-believed that a peaceful trader would never
-need it. The police patrols constituted
-the real defence of the trade routes, and
-even with them a few smugglers were the
-chief offenders.</span></p>
-<p class="pnext"><span>The captain's eyes were fixed for the next
-few seconds on the wonderful machine which
-sailed along so easily and so quietly. Once,
-he had noticed, when the raider made a circuit
-of the great liner, that the machine had shot
-ahead at twice or thrice the speed of the
-</span><em class="italics">Empress</em><span>. The armoured conning-tower, over
-the top of which the heads of the pilot and
-his companion could just be seen, gave the
-skipper an impression of strength, against
-which he knew that even if he could have
-replied with a machine gun, the bullets would
-have pattered harmlessly against the sides,
-and fallen away like rain-drops.</span></p>
-<p class="pnext"><span>He was in a quandary, this brave air-skipper.
-He had missed his chance of calling
-up the patrols. Yet, how could he, a British
-captain, surrender to some foreign marauder,
-or perhaps even to a British renegade; for he
-knew not as yet who this bold fellow was.
-Then he thought of his passengers, those
-distinguished guests committed to his charge,
-and last of all of the valuable lading: that
-consignment of gold for the vaults of the
-Bank of England.</span></p>
-<p class="pnext"><span>"By heaven, it's the gold they're after!"
-he exclaimed. "I never thought of it before.
-They've had the news ahead of us and
-they've waited for the airship in this
-out-of-the-world spot. Confound them, but
-they shan't get it if I can help it!" and the
-captain nerved himself to still further
-resistance, though he felt it was hopeless,
-unless some outlying patrol should come up
-quickly.</span></p>
-<p class="pnext"><span>The raider seemed to have read his thoughts,
-for he sailed close up again, and shouted
-through his megaphone, "For the last time,
-Captain, will you heave to?"</span></p>
-<p class="pnext"><span>"No--o!" the courageous man replied,
-though this time his voice wavered a bit, for
-he wondered what devilry the stranger
-would attempt next.</span></p>
-<p class="pnext"><span>He had not long to wait, for the pirate
-suddenly banked his machine, turned swiftly
-outwards, and circling round till he came up
-level with the great twin-engine in the rear
-gondola, which drove the giant propeller
-near the rudder, he opened once more a
-terrific burst of fire which instantly put both
-engines out of action.</span></p>
-<p class="pnext"><span>This almost brought the huge liner to a
-stop. At any rate, she now made more
-leeway than headway, for the only remaining
-engines which could now be used were those
-in the foremost gondola and port centre cabin.</span></p>
-<p class="pnext"><span>"Stop!" signalled the captain to the
-remaining engineers in charge of those engines.</span></p>
-<p class="pnext"><span>And the next instant the huge, looming
-mass, with her engines silent, lay there
-helpless, levering away to windward,
-shorn of her pride, and with the wreckage
-hanging loose from her rear and central
-gondolas.</span></p>
-<p class="pnext"><span>Another surprise that now awaited the
-crew and passengers of the air-liner was to
-see the phantom raider careering wildly
-around the beaten giant at enormous speed,
-in almost perfect silence, though his two
-propellers raced wildly as he dipped, spun
-and rolled to celebrate his victory, and
-to show off his amazing powers to the victims.</span></p>
-<p class="pnext"><span>"Good heavens!" ejaculated the captain
-as he watched all this. "It was only too
-true, then, what we heard at Delhi."</span></p>
-<p class="pnext"><span>"You mean about the silent engines and
-the speed of three hundred miles an hour,"
-added the navigating officer, who now stood
-by the skipper.</span></p>
-<p class="pnext"><span>"Yes. It's some amazing conspiracy. I
-cannot help admiring the rascals, though I
-should like to hang the pair of them."</span></p>
-<p class="pnext"><span>"Hullo! here he comes again. I wonder
-what he wants this time," and the next
-instant the raider throttled down, and came
-close up to the gondola, shouting as he did
-so in perfectly good English:--</span></p>
-<p class="pnext"><span>"Start that port engine, please, and bring
-her to earth by that cluster of palm-trees
-over there."</span></p>
-<p class="pnext"><span>"What more do you want with us?"
-replied the captain.</span></p>
-<p class="pnext"><span>"I must see your passports, and examine
-your cargo for contraband."</span></p>
-<p class="pnext"><span>"Eh, what's that?" exclaimed the amazed
-commander. "What does he want to
-examine our passports for?"</span></p>
-<p class="pnext"><span>"We haven't any," remarked the navigating officer.</span></p>
-<p class="pnext"><span>"And why the deuce is he to search for
-contraband, I should like to know?" groaned
-the skipper.</span></p>
-<p class="pnext"><span>"Did you hear what I said?" called the
-raider, who now appeared to be getting
-angry at the delay.</span></p>
-<p class="pnext"><span>"Yes," growled the other.</span></p>
-<p class="pnext"><span>"Then bring her down at once, and let
-out that mooring cable!"</span></p>
-<p class="pnext"><span>And as there was no apparent help for it,
-and not a single patrol had yet hove in
-sight, the captain of the liner reluctantly
-complied, wasting as much time as he dared
-in the operation.</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="the-air-king-s-tribute"><span class="bold large">CHAPTER XI</span></p>
-<p class="center pnext"><span class="bold medium">THE AIR-KING'S TRIBUTE</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>Far down below, the Arab sheik and his
-party, ambushed amid the waving palms of
-the oasis, had watched with keen and eager
-eyes this thrilling encounter in the heavens
-between the phantom-bird and the great
-leviathan. To them it seemed impossible
-that the aeroplane, sometimes diminished by
-distance to a tiny speck, could overcome the
-mighty airship.</span></p>
-<p class="pnext"><span>As the fight continued, and they heard the
-rat-tat-tat of the machine-gun, sometimes
-their doubts and fears overcame them, and
-many were the cries that went up to Allah
-the Compassionate, the Faithful, etc. But
-when they saw that at last the great white
-sheik had won and the disabled liner was
-slowly coming lower and lower, their pent-up
-feelings gave place to wild excitement, and
-shouts of,</span></p>
-<p class="pnext"><span>"Allah be praised! The bird of destiny
-has won! The great white chief has
-triumphed!" while others, more practical, and
-also more piratical, exclaimed: "Allah is
-sending down the treasures of heavens into
-the lap of the faithful. Praise be to Allah
-and to Mohammed his Prophet!"</span></p>
-<p class="pnext"><span>It was with some difficulty that Max
-restrained these wild men from dashing out
-in their frenzy to capture and loot the huge,
-lowering mass that now loomed but a little
-way above them. He began to fear that
-they would not wait for the pre-arranged
-signal, and he urged the Arab sheik to restrain
-them, and to repeat the orders that the
-occupants of the airship must not be touched.</span></p>
-<p class="pnext"><span>Nearer and nearer came the huge mass,
-steering badly and veering round in attempting
-to gain the lee-side of the trees, lest she
-should be totally wrecked in the mooring.
-Two hundred feet of cable suddenly dropped
-from her bow, and, when it touched the
-ground, Max gave the signal, and with a wild
-shout these fierce Bedouin horsemen suddenly
-broke from cover, and galloped into the open.</span></p>
-<p class="pnext"><span>"Ye saints!" gasped the Indian judge,
-when he beheld this wild tournament of
-galloping horsemen, brandishing their rifles
-and long spears. "Are we to be eaten
-alive?" Less than an hour ago he had
-expressed a pious wish to visit this peaceful
-garden in the desert; now, it was too near
-to be pleasant.</span></p>
-<p class="pnext"><span>"All hands to the cable!" shouted Max
-in Arabic, and very quickly both horses and
-men were struggling with the stout hawser.</span></p>
-<p class="pnext"><span>"This way," shouted the Gotha pilot.
-"Take it round and round these three trees;
-they should stand the strain unless the wind
-gets stronger," and selecting a small group of
-trees on the leeward side of the grove, he
-very quickly had the cable made fast in such
-a way that the leviathan of seven hundred
-feet in length swung easily head to wind, like
-a ship riding at anchor and swinging with the tide.</span></p>
-<p class="pnext"><span>Then the tribesmen, kept well in hand,
-surrounded the prize, keeping some thirty
-paces distant, for they had not yet quite
-overcome their fears. Never before had such
-a thing been seen resting on the yellow sands
-of the Hamadian Desert.</span></p>
-<p class="pnext"><span>As the gondolas of the </span><em class="italics">Empress of India</em><span>
-came to rest quietly on the ground, the
-</span><em class="italics">Scorpion</em><span> descended in a rapid spiral, touched
-the sands lightly and taxied up to the fringe
-of trees.</span></p>
-<p class="pnext"><span>Then, to the utter amazement of the
-occupants of the dirigible, some of whom were
-already descending from the gondolas,
-a couple of men, wearing the loose flowing
-robe of the desert, including that distinctive
-mark of the Mohammedan world, the fez,
-leapt from the machine and approached the
-airship.</span></p>
-<p class="pnext"><span>"Snakes alive!" ejaculated the colonel;
-"but what have we here?" his eyes fixed
-upon the two men.</span></p>
-<p class="pnext"><span>"Some person of note, evidently,"
-remarked his friend the judge, as he saw the
-foremost of these individuals mount a richly
-caparisoned horse which was held in readiness
-for him, and approach in a dignified and
-almost royal manner.</span></p>
-<p class="pnext"><span>"This king of the desert is evidently some
-European renegade who is challenging the
-right of other nations to cross his domain
-without his permission," said the soldier.</span></p>
-<p class="pnext"><span>"He is some daring pilot, at any rate,"
-replied the justiciary.</span></p>
-<p class="pnext"><span>"I wonder now what he intends to do with
-us," observed the other.</span></p>
-<p class="pnext"><span>"Why, he intends to plunder us, of course,"
-replied his companion. "What else could
-be his motive?"</span></p>
-<p class="pnext"><span>The captives were not long to be left in
-doubt as to the proceedings of this daring
-freebooter. Raising the megaphone which
-he had used in the air so effectively, he
-shouted in perfectly good English:--</span></p>
-<p class="pnext"><span>"Abandon airship!"</span></p>
-<p class="pnext"><span>And to make this order immediately effective,
-the desert king ordered Max to see that
-every member of the great liner, passengers
-and crew, were immediately assembled before
-him. The navigating officer and the captain
-were the last to leave the vessel; they did so
-unwillingly, and not without a measure of
-compulsion at the point of a revolver. The
-skipper's looks as he fixed them upon this
-desert freebooter astride the fiery steed,
-conveyed to the brigand much more than
-mere words could have expressed.</span></p>
-<p class="pnext"><span>Fixing him with his keen, malicious eyes,
-the pirate said: "Are you the captain of
-this vessel?"</span></p>
-<p class="pnext"><span>"I am," replied the skipper in surly tones.</span></p>
-<p class="pnext"><span>"Show me your bill of lading."</span></p>
-<p class="pnext"><span>"Bill of lading?" echoed the captive.
-"You must hunt for it if you want it."</span></p>
-<p class="pnext"><span>The self-styled king of the desert frowned.
-He knew that he was up against an English
-skipper, and that he must adopt other
-measures to gain his end. Without lifting
-his gaze from the commander of the air-liner,
-or flinching a muscle, he replied firmly, "One
-word from me, Captain, and your life would
-be forfeit. You would swing from that tree
-by one of your own cables."</span></p>
-<p class="pnext"><span>"I know that, brigand," replied the
-prisoner. "Get a cable and carry out your
-threat; the rope that will hang you is not so
-very far away, either."</span></p>
-<p class="pnext"><span>"Very well," exclaimed the German.
-"Then, I need only give the order to these,
-my faithful subjects, and the whole of your
-valuable cargo will be strewn on the sands,
-and your airship will be alight. I do not
-propose to adopt those measures unless you
-compel me. I will give you five minutes to
-decide." As the pirate uttered these words
-in a cool, nonchalant manner, he glanced at
-the European emblem on his wrist, a gold,
-gem-studded wristlet watch with luminous dial.</span></p>
-<p class="pnext"><span>"I deny your right to interfere with a
-peaceful trader," blurted out the captain,
-when he saw the full force of the two
-alternatives which had been offered to him. He
-was wondering, moreover, how much the
-brigand knew about the presence of the
-specie on the vessel.</span></p>
-<p class="pnext"><span>"You deny my right, do you?" returned
-the other.</span></p>
-<p class="pnext"><span>"Yes. Who are you?"</span></p>
-<p class="pnext"><span>"I am Sultan von Selim, Air-King of the
-Hamadian Desert. I told you that once
-before when I first challenged you in the air."</span></p>
-<p class="pnext"><span>"Who made you king?" snorted the captain.</span></p>
-<p class="pnext"><span>There was silence for the space of ten
-seconds, during which time the brigand
-consulted his watch again, then replied:--</span></p>
-<p class="pnext"><span>"The Allies made me king, particularly
-you </span><em class="italics">verdammt</em><span> English when you drove me
-from my Fatherland with those impossible
-peace terms. King I am, and king I will
-remain, of all the aerial regions where I choose
-to abide, until there comes a better man
-who can beat me in the air. And you,
-Captain, of all men, must know from what you
-have already seen that my powers in that
-realm are considerable."</span></p>
-<p class="pnext"><span>The captain, having cooled somewhat after
-this outburst, had to admit to this German
-irreconcilable that there was certainly some
-truth in his statement about being king of
-the air. Certain things were beginning to
-dawn upon this English captain, and he was
-now wondering how far it would be wise to
-humour the brigand. He added, however,
-to his admission, the following words, "You
-are only king by might!"</span></p>
-<p class="pnext"><span>"Ha! ha!" laughed the outlaw, "but
-that also is some admission. My position is
-precisely that of the British in India or
-Egypt. Withdraw your soldiers from these
-two countries and what becomes of your
-government there? So am I King of the
-Hamadian Desert till a stronger man comes.
-When that time comes one of us must die.
-There is no room for two kings, even in the
-desert. Till then I am supreme. But come,
-captain, four minutes have passed already.
-Your bill of lading, quickly now, for we are
-but wasting time, and these my subjects"--and
-here the brigand waved his hand towards
-the restive Arabs--"or rather I should say
-my customs' officials, are waiting to examine
-your cargo, and to levy the king's tribute."</span></p>
-<p class="pnext"><span>The captain looked around first upon
-his own followers and then upon the
-impatient Bedouins--the vultures around the
-carcase.</span></p>
-<p class="pnext"><span>"I could have brought your ship down in
-flames, but I preferred a milder method,"
-continued the outlaw, as he watched the
-seconds of the last minute being ticked away
-on his jewelled watch.</span></p>
-<p class="pnext"><span>"But helium will not burn!" returned
-the captain smartly. "That was beyond
-your powers."</span></p>
-<p class="pnext"><span>A mocking, sardonic laugh came from the
-robber chief as the Englishman uttered these words.</span></p>
-<p class="pnext"><span>"Would you like to see it burn?" he almost hissed.</span></p>
-<p class="pnext"><span>The captain faltered in his reply; he was
-not quite so decisive as he had been.
-Evidently there was some sense of humour, if
-not much, about this irreconcilable German.</span></p>
-<p class="pnext"><span>"Here, Carl!" cried the bandit. "Detach
-one of those nineteen ballonettes from the
-airship."</span></p>
-<p class="pnext"><span>"Yes, sir," replied the subordinate,
-stepping up to the king and saluting smartly.</span></p>
-<p class="pnext"><span>"Take it away to leeward there, and show
-this dull Englishman how he may learn
-chemistry and science even from inhabitants
-of the Hamadian Desert. Here, take this,
-you will need it," and the chief handed to his
-assistant a small cylindrical tube with which
-to carry out his orders.</span></p>
-<p class="pnext"><span>Turning next to the Englishman, he
-observed, "Know, you dullard, that a small
-admixture of a secret gas, which is known
-only to three living men, will make your
-renowned helium flare like hydrogen. You
-shall see it in a short space of time."</span></p>
-<p class="pnext"><span>"Recall your man, I will take your word
-for it, Sultan!" exclaimed the captain, who
-now felt that it must be so, for he was
-already bewildered by the strange things
-which he had witnessed that day, and he
-had no desire to see this experiment carried out.</span></p>
-<p class="pnext"><span>"You believe me, then," returned the
-air-king, who seemed particularly to relish this
-interview with the Englishman, especially
-with this group of celebrities within earshot,
-for they had listened eagerly to every word
-which he had spoken. And the German
-knew that though his days might be
-numbered, as indeed he felt they were, yet his
-fame would be greatly enhanced by the
-episodes of this day, for vanity was not the
-least among his failings.</span></p>
-<p class="pnext"><span>Once more he glanced at his watch; for
-the allotted space of time had nearly run.</span></p>
-<p class="pnext"><span>"How now, Englishman!" he exclaimed
-in a harsher tone. "The bill of lading, where
-is it?"</span></p>
-<p class="pnext"><span>The chief purser, receiving the captain's
-nod, at once advanced towards the regal
-horseman, handed him a bundle of papers and
-said: "Here, sir, is the document you desire."</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="the-maharajah-s-choice"><span class="bold large">CHAPTER XII</span></p>
-<p class="center pnext"><span class="bold medium">THE MAHARAJAH'S CHOICE</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>A dramatic episode followed the examination
-of the airship's bill of lading by the </span><em class="italics">pseudo</em><span>
-monarch and his so-called chancellor of the
-exchequer, Carl, who aided his master in the task.</span></p>
-<p class="pnext"><span>"Item one. What does that consist of?"
-asked the brigand.</span></p>
-<p class="pnext"><span>"Mails. His Britannic Majesty's mails,"
-replied the chancellor.</span></p>
-<p class="pnext"><span>"Where from?"</span></p>
-<p class="pnext"><span>"From India for Egypt and London,"
-replied Carl, maintaining a grave and solemn
-deportment.</span></p>
-<p class="pnext"><span>"H'm! They may pass when the usual
-tribute is paid," remarked the bandit in
-serious tones, as though he had delivered
-himself of some weighty pronouncement.</span></p>
-<p class="pnext"><span>The judge looked at the colonel with raised
-eyebrows when he heard this strange decision,
-but the captain, forgetting his position for a
-moment, blurted out:--</span></p>
-<p class="pnext"><span>"Tribute indeed? When did the King of
-England pay tribute for his mails to be carried
-across the Hamadian desert?"</span></p>
-<p class="pnext"><span>The air-king eyed the speaker with apparent
-amazement, mingled with a touch of scorn and
-pity, then quietly observed:--</span></p>
-<p class="pnext"><span>"That is the very point, Captain. There
-has been far too much laxity in this respect
-in the past. The liberties of the small nations
-to make their own laws, and possess their own
-lands in peace, have been greatly endangered
-of late. It is mere brigandage for a great
-power to over-ride the native interests of
-small communities. But from to-day this
-brigandage must cease, at any rate over the
-territories where I rule."</span></p>
-<p class="pnext"><span>The captain could find no reply to this
-sally of the desert king's, and, while a smile
-played about the corners of his mouth, he
-looked beyond this robber chief, in his gaudy
-trappings, to where the </span><em class="italics">Scorpion</em><span> lay
-squatting like an ugly toad upon the sands.</span></p>
-<p class="pnext"><span>At length the monarch resumed his
-cross-examination with these words: "Come,
-Captain, will you pay tribute for the transit
-of mails across my territory, or will you not?"</span></p>
-<p class="pnext"><span>"I will not!" replied the skipper.</span></p>
-<p class="pnext"><span>With a flash of fire in his tones the brigand
-ordered: "Take the first ten sacks of mails
-out into the desert and burn them at once."</span></p>
-<p class="pnext"><span>"It shall be done, O chief," replied Max,
-who immediately detailed some of the natives
-to carry the order into effect, when the captain,
-urged to it by the judge, asked:--</span></p>
-<p class="pnext"><span>"What is the amount of the tribute?"</span></p>
-<p class="pnext"><span>"Ten thousand pounds in English gold,"
-came the immediate reply.</span></p>
-<p class="pnext"><span>"I cannot pay it," returned the captain.
-"It is mere plunder," though the judge pointed
-out to the commander quietly that it would
-probably be more profitable to pay it and to
-get away with the mails in a damaged airship,
-than to leave the mails behind to be lost or
-destroyed in the desert.</span></p>
-<p class="pnext"><span>"He will take the gold anyhow, when he
-comes to it on the bill of lading," added the
-colonel, "though devil a penny I'd pay him."</span></p>
-<p class="pnext"><span>"It isn't my money," argued the captain,
-"so there's an end of it."</span></p>
-<p class="pnext"><span>"How now, Englishmen! We are wasting
-time. Will you pay the sum demanded?"</span></p>
-<p class="pnext"><span>"No, I will not!"</span></p>
-<p class="pnext"><span>"Very good. Get out the rest of the mails
-and burn them at once!" ordered the
-monarch, and a couple of minutes afterwards
-the first bags of mails, sprayed with some
-inflammatory liquid, were blazing furiously.</span></p>
-<p class="pnext"><span>"Item two!" called the desert king.</span></p>
-<p class="pnext"><span>"Gold. Nineteen boxes of bullion for the
-Bank of England," called out the chancellor.</span></p>
-<p class="pnext"><span>"Gold?" echoed the air-fiend, as though
-he were utterly unconscious of the presence of
-such a commodity, in face of the captain's
-refusal to pay over a trifling ten thousand
-pounds to secure right of way for his mails.</span></p>
-<p class="pnext"><span>"Yes, sir. Nearly one hundred thousand
-pounds in specie."</span></p>
-<p class="pnext"><span>"I thought we had prohibited the importation
-of gold into these regions, chancellor,
-because of its evil effects upon the minds of
-the people."</span></p>
-<p class="pnext"><span>"Yes, sir," returned the chancellor. "We
-decided to abolish its importation altogether
-on that account, save only as tribute money
-for the royal chest."</span></p>
-<p class="pnext"><span>"Exactly," replied the bandit, in a tone of
-assumed moral injury. Then, turning to the
-Englishman, he said: "You must know,
-Captain, that most wars are caused by gold,
-and by the unbrotherly strife which it foments.
-You must know also that all wars are
-sustained by it."</span></p>
-<p class="pnext"><span>"Yes, I agree with you for once," returned
-the prisoner, boldly, wondering at the ease
-with which this confirmed brigand could turn
-moralist.</span></p>
-<p class="pnext"><span>"Then what must be done with the gold,
-sir?" asked the chancellor.</span></p>
-<p class="pnext"><span>"Every ounce of gold on the airship must
-be confiscated," exclaimed the king of robbers
-as he uplifted his hands in pious horror. "Let
-it be removed at once."</span></p>
-<p class="pnext"><span>"Very well, sir," and this second operation,
-which was more pleasing still to the waiting
-Arabs, was immediately put into effect.</span></p>
-<p class="pnext"><span>"Item three!" called out the chief.</span></p>
-<p class="pnext"><span>"Ten boxes of valuables, including the
-personal property and belongings of one of
-the passengers," came the reply.</span></p>
-<p class="pnext"><span>"What, do they belong to one person?"</span></p>
-<p class="pnext"><span>"Yes, sir."</span></p>
-<p class="pnext"><span>"What is his name?"</span></p>
-<p class="pnext"><span>"The Maharajah of Bangapore, sir,"
-returned the wise man of the exchequer, whose
-task promised to be an easy one in the future,
-judging by the vast amount of spoil which had
-already fallen into his lap.</span></p>
-<p class="pnext"><span>"The Maharajah of Bangapore?" repeated
-the monarch, raising his hand to his forehead
-for an instant, as though he would recall some
-long forgotten episode. "Is he amongst the
-company present?"</span></p>
-<p class="pnext"><span>"I believe so."</span></p>
-<p class="pnext"><span>"Ask him to stand forth."</span></p>
-<p class="pnext"><span>And the Indian prince, hearing his name
-called in English, stepped forth and
-confronted his old enemy of the Mesopotamian
-campaign. When their eyes met a flash of
-fire, more eloquent than words, revealed
-what was in each man's mind. The prince
-expected to be tortured to death and was
-prepared for it, for, like all his people, he
-was brave as well as fierce. At last the
-robber spoke.</span></p>
-<p class="pnext"><span>"Prince Jaipur, you are an enemy of mine,"
-he said.</span></p>
-<p class="pnext"><span>"I know it!"</span></p>
-<p class="pnext"><span>"Do you expect mercy after the way your
-tribesmen massacred my men at Kerbela?"</span></p>
-<p class="pnext"><span>The maharajah shrugged his shoulders, but
-disdained to reply to this upstart robber
-chief who styled himself a king.</span></p>
-<p class="pnext"><span>"Do you know that your life is in my
-hands?" exclaimed the bandit fiercely.</span></p>
-<p class="pnext"><span>"I am not afraid of anything you can do,
-brigand!" hissed the prince, and his voice
-sounded not unlike the angry, venomous
-snake in the jungle. Another man might
-have quailed before those glaring eyes and
-those hissing tones. But the German quavered not.</span></p>
-<p class="pnext"><span>"I will give you a kingly choice," he said,
-"as you are the scion of half a hundred kings
-in your illustrious line."</span></p>
-<p class="pnext"><span>"I ask no favours of a common Bedouin
-robber," snarled the other.</span></p>
-<p class="pnext"><span>"Listen. I will give you the choice of
-drinking this deadly poison, or of being
-dropped ten thousand feet from my aeroplane.
-Which will you take?"</span></p>
-<p class="pnext"><span>The prince shuddered slightly, and glanced
-up into the cloudless blue, as though
-anticipating what such a death might mean, then
-looked at the small phial which the brigand
-held forth in his hand.</span></p>
-<p class="pnext"><span>"Yes, ten thousand feet!" continued the
-German, as he noted the anxious look which
-overcast the Hindoo's face for an instant, as
-he gazed up into the sky. "Then I will loop
-the machine, and, with your hands pinioned,
-you will be thrown out and drop, drop---- Which
-will you choose?"</span></p>
-<p class="pnext"><span>"I will drink the poison," replied the
-prince, who had now regained his usual
-composure.</span></p>
-<p class="pnext"><span>"Very well. Let him be securely tied to
-that tree to await our pleasure," and the
-maharajah was instantly seized by three or
-four powerful Arabs, and secured to a tree
-some twenty paces away.</span></p>
-<p class="pnext"><span>"What about his valuables, sir?" asked Carl.</span></p>
-<p class="pnext"><span>"Have you examined them?"</span></p>
-<p class="pnext"><span>"Yes, sir."</span></p>
-<p class="pnext"><span>"And what do they consist of?" asked the king.</span></p>
-<p class="pnext"><span>"His jewels, his gold and silver plate,
-studded with rare gems of priceless value.
-They are worth five times the value of the
-specie," whispered Carl.</span></p>
-<p class="pnext"><span>"And what else? You said there were ten boxes."</span></p>
-<p class="pnext"><span>"Part of his regalia and numerous ceremonial robes."</span></p>
-<p class="pnext"><span>"They are all confiscated!" announced
-the monarch. "The sun will set in another
-two hours, and at sunset the Indian must die."</span></p>
-<p class="pnext"><span>"There is nothing else, sir, of much value.
-All the gold and this personal property has
-been secured. Here is the list of passengers,
-for there are scarcely any passports held by
-the strangers," and here Carl, who had paid a
-visit to the aerial, whispered something to his
-chief.</span></p>
-<p class="pnext"><span>"Good! Then, in your opinion, chancellor,
-sufficient tribute has now been obtained
-from these strangers who have crossed our
-territory without permission," said the bandit
-aloud for all to hear.</span></p>
-<p class="pnext"><span>"Yes, sir."</span></p>
-<p class="pnext"><span>"Then let them board the airship at once.
-She will be cast adrift in ten minutes."</span></p>
-<p class="pnext"><span>At this there was a scramble for the
-gondolas, and very quickly all, save the captain
-and the navigating officer, were aboard. The
-judge and the colonel, however, prevailed
-upon by the maharajah's men, descended
-again to intercede for the life of the Indian.</span></p>
-<p class="pnext"><span>"You have taken the man's jewels," said
-the colonel. "At least you might spare his
-life."</span></p>
-<p class="pnext"><span>"You may have his body," remarked the
-airman, "but he must first drink the phial,"
-and a stern look appeared once more in the
-robber-bandit's eyes. On this point he was
-unbending, and remained like adamant.</span></p>
-<p class="pnext"><span>"The airship is ready now, sir," said the
-captain, making a final appeal for the life
-of the maharajah. "I should like to report,
-at any rate, when I do complete my journey,
-that all my passengers are safe, though I
-expect to be two days late with only two
-engines and this beam wind. Once more,
-will you release the Indian?"</span></p>
-<p class="pnext"><span>"Bring him before me!" commanded the
-monarch at last, with a bored expression,
-and the Indian, still bound hand and foot,
-was brought before the pseudo king.</span></p>
-<p class="pnext"><span>"Unloose his hands," came the order.</span></p>
-<p class="pnext"><span>"They ask me to spare your life, Indian
-dog!" continued the robber, addressing the
-prince in contemptuous tones. "If you
-sue for it yourself, you may have it,
-otherwise..." and, instead of completing his
-sentence, the speaker shook the little phial
-in the face of the prisoner.</span></p>
-<p class="pnext"><span>"I will not ask my life of you, serpent!"
-hissed the captive. "From you I will accept
-no favours. Robbed of my family heirlooms,
-my jewels and my household gods, I prefer
-to die. Give me the poison, and I will show
-you how a real prince of the royal line of
-Indus can die!"</span></p>
-<p class="pnext"><span>For one awful instant, the desert chief glared
-at his enemy, who had dared to refuse his
-generous offer. Then, in angry tones, he cried:--</span></p>
-<p class="pnext"><span>"Indian dog! I offered you mercy, but
-you spurn the gift of Allah and ask for death.
-Then take this and drink it!" and he tossed
-him the phial.</span></p>
-<p class="pnext"><span>"Stay!" cried half a dozen voices from
-amongst the group of passengers.</span></p>
-<p class="pnext"><span>But their expostulations were in vain, for,
-with an eagerness to hide his disgrace in death,
-which only a proud oriental can show, the
-prisoner caught the phial, withdrew the small
-cork, and drained the contents before his
-horrified friends could interfere.</span></p>
-<p class="pnext"><span>The next moment, the body of the maharajah
-lay prostrate upon the sands of the
-Hamadian desert.</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="the-missing-airship"><span class="bold large">CHAPTER XIII</span></p>
-<p class="center pnext"><span class="bold medium">THE MISSING AIRSHIP</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>Horrified and aghast at the foul deed which
-had been done, the passengers and crew of the
-air-liner, who had left the gondolas at the cry
-of consternation which went up, now crowded
-around the fallen prince. Even those fierce
-sons of the desert who witnessed the dire act
-could not restrain an involuntary shudder, but
-they merely shrugged their shoulders, or
-remarked: "Kismet! It is the will of
-Allah, the Compassionate, the Merciful,"
-and after some such invocation, their piety
-appeared to be satisfied, for they immediately
-returned to their treasure.</span></p>
-<p class="pnext"><span>The captain and his friends were loud in
-their protestations and imprecations after
-their first and futile attempts to rouse the
-prostrate man, for they believed him to be
-already dead. They glared at the pseudo
-caliph, who appeared to be entirely unmoved
-by the heart-rending spectacle. And if, at
-that moment, any weapon of offence had
-remained in their possession, it would
-certainly have been turned upon the offender,
-whom they now regarded as a murderer.</span></p>
-<p class="pnext"><span>But every weapon had been carefully
-removed from the air-liner and her
-complement; even the unmounted machine-gun
-and the one box of ammunition placed
-aboard on her first voyage, were now in
-possession of the bandits.</span></p>
-<p class="pnext"><span>The captain in particular was furious, and
-he turned upon the German fiercely, shook
-his fist at him and cried, "One day you will
-pay for this, sirrah! The arm of Britain is
-long enough to reach you!"</span></p>
-<p class="pnext"><span>A mocking laugh was the only reply which
-the German gave. Then, looking once more
-at his jewelled watch, he signified that the
-time for the airship's departure had almost
-arrived.</span></p>
-<p class="pnext"><span>"Three minutes more and I shall cut her
-adrift," he said.</span></p>
-<p class="pnext"><span>"But the maharajah?" asked the captain.
-"What can we do with him; we cannot leave
-his body to the vultures."</span></p>
-<p class="pnext"><span>"Bah! Take him away with you. He
-will live again in seven hours; it was only
-morphine!"</span></p>
-<p class="pnext"><span>Bewildered, but yet relieved by these words,
-they quickly ascertained that the prostrate
-man was not actually dead, and they hurriedly
-placed him aboard the airship and administered
-emetics.</span></p>
-<p class="pnext"><span>"Let us get him away at once," urged the
-Indian judge; "perhaps the higher altitudes
-will quickly dissipate the effects of the
-morphine."</span></p>
-<p class="pnext"><span>"Are you ready there?" shouted the
-caliph, who had ridden with his escort up to
-the central gondola.</span></p>
-<p class="pnext"><span>"Yes," came the response.</span></p>
-<p class="pnext"><span>"Then remember, the next time that you
-invade my dominions without my permission
-you will not escape so easily. As you know
-to your cost, the King of the Hamadian desert
-is able to defend himself and his people, even
-from the insults of a great power."</span></p>
-<p class="pnext"><span>The captain made a slight bow, half ironical,
-in response to this kingly assertion, and
-asked,</span></p>
-<p class="pnext"><span>"Is there any communication which your
-majesty would like to have delivered to my
-Government?"</span></p>
-<p class="pnext"><span>"Yes," replied the monarch, drawing from
-under his loose robe a sealed packet, which
-he appeared to have had in readiness for the
-occasion. It was addressed as follows:--</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="noindent pfirst"><span>"To Colonel John Tempest, D.S.O., M.C..
-<br />Chief Commissioner of the British Aerial
-<br />Police, Scotland Yard, London,"</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>and across the top left-hand corner it was
-marked "</span><em class="italics">Confidential</em><span>," and also "</span><em class="italics">To be
-delivered personally by the Captain of the
-Air-Liner, Empress of Britain</em><span>."</span></p>
-<p class="pnext"><span>The skipper, apparently bewildered for a
-moment by this strange request, for it seemed
-to him like a letter from a condemned man
-to his executioner, looked the packet over
-for a few seconds. Noting the great red seal
-on the back, he read the imprint embossed on
-the huge wafer. It read as follows, and was
-circular in form:--</span></p>
-<p class="pnext"><span>"From Sultan von Selim, Air-King of the
-Hamadian desert," and the crest was a
-scorpion, with the solitary word in Latin,
-"</span><em class="italics">Scorpio</em><span>."</span></p>
-<p class="pnext"><span>The caliph waited patiently until the
-captain had examined the exterior of the packet,
-and recovered from his amazement, and then
-said, "Before you depart, Captain, you must
-promise me that you will deliver that packet
-in person to Colonel Tempest, who is not
-unknown to me."</span></p>
-<p class="pnext"><span>The captain did not answer for a few seconds,
-for he was wondering what new conspiracy
-was this. He was wondering also whether
-the conveyance of this packet was not after
-all the real reason for the forced descent of
-the airship.</span></p>
-<p class="pnext"><span>"Do you promise, Captain?" asked his
-interrogator, looking at him fixedly.</span></p>
-<p class="pnext"><span>"Yes, I promise."</span></p>
-<p class="pnext"><span>"On your honour?"</span></p>
-<p class="pnext"><span>"On my word of honour, I promise to
-deliver it."</span></p>
-<p class="pnext"><span>"Then good-bye. I will 'wireless' the
-patrols to look out for you."</span></p>
-<p class="pnext"><span>"Thank you," replied the skipper acidly.</span></p>
-<p class="pnext"><span>And the next moment, seeing that only
-his own accomplices and reputed subjects
-were left on the ground, the Sultan gave the
-order, "Let go!"</span></p>
-<p class="pnext"><span>So the huge cable was slipped, and the
-leviathan left her moorings at once. The
-north-west wind carried her clear of the trees,
-and, as she had left nearly two tons of her
-most precious cargo behind, she rose rapidly,
-then started falteringly on her long journey to
-Cairo as her two remaining Sunbeam-Maori
-engines burst into life.</span></p>
-<p class="pnext"><span>The sun, which had shone with pitiless
-might upon the Arabian desert that day, was
-sinking like a huge red ball beneath the
-horizon when the great air-liner, drifting
-considerably from her course, but still making
-progress in her journey towards Cairo,
-disappeared from the watchers' view.</span></p>
-<p class="pnext"><span>With strange impartiality, inexplicable in
-such a robber-bandit, the spoil had been
-divided amongst the Bedouins, who, to their
-bewilderment and surprise, were now rich,
-each one of them, beyond the dreams of
-avarice. Their gratitude to Allah, the Giver
-of all Good, and to the great white sheik was
-unbounded. Never before had their greedy
-eyes beheld such treasure; never before had
-they gained a prize so easily; and some of them
-even wondered whether, after all, Mohammed
-had not appeared to the Faithful once more
-in the person of the great white sheik.</span></p>
-<p class="pnext"><span>Long before midnight, however, the last
-man, with heavily-laden beast of burden,
-had disappeared, swallowed up, as it were,
-by the very sands of the desert, so that, when
-the full round moon approached the meridian
-and changed the gold of the desert to silver,
-not a vestige of man or beast remained. And
-of the camp, only a few ashes marked the
-spot where once a fire had burned. The
-</span><em class="italics">Scorpion</em><span>, too, had taken its departure
-for an unknown destination, carrying its
-mysterious crew far, far away from these
-burning sands, for the indomitable
-commander knew only too well that the captain
-spoke truthfully when he said that the arm
-of Britain was very long, and could even
-reach to this wild desert land.</span></p>
-<p class="pnext"><span>Before his departure, however, Heinrich
-von Spitzer had sent off his promised message
-in laconic terms to the Cairo patrols. It ran
-as follows:--</span></p>
-<div class="vspace" style="height: 1em">
-</div>
-<p class="pfirst"><span>"Air-liner </span><em class="italics">Empress</em><span> with damaged engines
-crossing desert towards Cairo. Lat. 29-50 N.,
-Long. 40-25 E. drifting W.S.W. Wireless
-deranged. SCORPIO."</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>"Piece of bad luck, sir!" remarked the
-commissioner's assistant at Cairo when he
-received the message.</span></p>
-<p class="pnext"><span>"H'm! She carries the Indian mail, too,"
-replied his chief.</span></p>
-<p class="pnext"><span>"Yes, and a good deal more, sir."</span></p>
-<p class="pnext"><span>"What else does she carry this trip besides
-passengers and mails?" asked the alert
-commissioner.</span></p>
-<p class="pnext"><span>"That big loading of specie, sir, for the
-Bank of England. Nearly a ton of gold, I
-believe."</span></p>
-<p class="pnext"><span>"Phew! And isn't the maharajah of
-somewhere or other coming on a state visit
-to the King also?"</span></p>
-<p class="pnext"><span>"Yes, by Jove, so he is! We had a message
-this morning saying that he would travel
-by the </span><em class="italics">Empress</em><span>."</span></p>
-<p class="pnext"><span>"Heaven help us if she comes down in the
-desert with that cargo. The Bedouins would
-soon make short work of it. The authorities
-rely too much upon the patrols for these
-long journeys," said the commissioner.</span></p>
-<p class="pnext"><span>"We were asked to take particular care over
-her this trip. The Delhi patrols accompanied
-her part of the way, and she was all right up to
-mid-day, but she hasn't spoken to us since.
-I have sent out one or two messages and have
-had the patrols ready to go out and meet her,
-as soon as I heard again from her, giving her
-position, sir."</span></p>
-<p class="pnext"><span>"And you've had no further reply till
-this message came in?" asked the chief.</span></p>
-<p class="pnext"><span>"No, sir."</span></p>
-<p class="pnext"><span>"By the way, is her wireless damaged as
-well as her engine? I didn't notice."</span></p>
-<p class="pnext"><span>"Yes, sir. The message says: 'Wireless
-deranged,'" replied the assistant, re-reading
-from the aerogram.</span></p>
-<p class="pnext"><span>"Then who the deuce sent the message?"</span></p>
-<p class="pnext"><span>"Scorpio---- But who Scorpio is I
-can't make out. It must have been some
-passing airman, for it cannot have been one
-of our own patrols."</span></p>
-<p class="pnext"><span>"Phew! The mystery deepens. Get the
-patrols out at once, and tell them to take
-plenty of ammunition with them. It will
-take a few rounds to scare off those Bedouin
-fiends if once they get round a carcase where
-there are such pickings."</span></p>
-<p class="pnext"><span>"I don't think there's much to worry about
-in that respect. Those Arabs have a
-wholesome fear of these air-liners, sir. However,
-I will get the machines off at once."</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="betrayed-by-the-camera"><span class="bold large">CHAPTER XIV</span></p>
-<p class="center pnext"><span class="bold medium">BETRAYED BY THE CAMERA</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>The order was quickly given for the aerial
-police scouts to start. Within a few minutes
-the patrols left Cairo and the adjoining
-air-stations, and, spreading out fan-wise, they
-crossed the Canal, the Gulf of Sinai, the
-wild mountainous peninsula which bears
-the same name, and the Hedjaz coast, until
-they entered the desert regions beyond. Then
-they commenced their search by moonlight
-for the battered and drifting air-liner over the
-trackless, desert lands which lie between the
-28th and the 30th parallels.</span></p>
-<p class="pnext"><span>By a pre-arranged system of Very lights,
-the patrols kept each other informed of their
-exact positions during the night, and watched
-keenly the eastern horizon for any response
-which might come from the belated airship.</span></p>
-<p class="pnext"><span>Meanwhile the air-liner, fighting manfully
-against the freshening wind, made very slow
-progress, and drifted still further and further
-away from her course. The air was full of
-wireless messages both from Cairo and the
-patrols, but she was as yet unable to reply
-and define her position. The engineer and
-wireless operator, however, had been able to
-receive some of the messages indistinctly,
-and they knew at any rate that help was not
-far away.</span></p>
-<p class="pnext"><span>The captain was naturally very much
-depressed by the turn of events. Somehow
-he felt that he had not acted very heroically
-in the matter. He had considered the safety
-of his distinguished passengers perhaps too much.</span></p>
-<p class="pnext"><span>"If I had had no passengers to consider,
-I would have remained aloft until the whole
-liner had been shot to ribbons!" he declared
-to himself, when he at last retired for a few
-minutes to his private cabin. "They should
-never have taken me alive! But there, my
-instructions stand--the safety of the passengers
-and crew before anything else. I was a
-fool, though, to act as I did. I ought to have
-sent out the S.O.S. to Cairo without a second's
-delay, instead of arguing with this brigand;
-but there, whoever expected to encounter
-anything like this?"</span></p>
-<p class="pnext"><span>Then as his thoughts turned to the wonderful
-machine, he endeavoured to docket all the
-information he could remember about the
-brigand's aeroplane, for he knew that he
-would be expected to recount every detail
-when he met the court of enquiry, "which,"
-he murmured, "is as certain to take place
-as to-morrow's sunrise.</span></p>
-<p class="pnext"><span>"Gee whiz! Three hundred miles an hour,
-and silent engines to boot! Phew! nobody
-will believe me, anyhow. Still, I shall have
-to face the music, and also to explain why I
-have lost a hundred thousand pounds of
-specie," and the skipper looked down on the
-white sands below, and for a moment he
-almost contemplated suicide.</span></p>
-<p class="pnext"><span>"I wouldn't mind if I could only bring
-sufficient information to the authorities to
-lead to the speedy capture of the villain, but
-I can't. There wasn't time even for a
-photograph. The bandit was aware of all
-that, and I understand that every camera
-was removed from the airship before he let
-us go."</span></p>
-<p class="pnext"><span>At that instant there came a slight tap at
-the cabin door.</span></p>
-<p class="pnext"><span>"Come in!" cried the commander, expecting
-some further report from the sick-berth
-steward about the condition of the maharajah,
-who, half an hour ago, was said to be showing
-signs of recovery, owing to the bracing air at
-three thousand feet.</span></p>
-<p class="pnext"><span>The door opened, and Gadget, the ship's
-mascot, appeared. Now Gadget's newest
-hobby was photography, and through the
-kindness of the photographic officer he had
-become the proud possessor of a small pocket
-camera.</span></p>
-<p class="pnext"><span>"I got her, sir! Thought you'd like to
-see her ... begging your pardon," and
-Gadget, with his dirty, but sunny, smiling
-face stopped short and pulled his lock of hair
-by way of salute, as the captain pulled him up
-sharply by snapping out:--</span></p>
-<p class="pnext"><span>"Got whom? Like to see whom, Gadget?"</span></p>
-<p class="pnext"><span>"The 'Clutchin' Hand,' sir," explained
-Gadget, who now found himself floored for
-once by his want of English.</span></p>
-<p class="pnext"><span>"I don't understand, boy?"</span></p>
-<p class="pnext"><span>"The bloke what played the dirty on us,
-sir," replied the boy, opening wide his bright
-blue eyes, and holding out three wet and
-recently developed pocket films.</span></p>
-<p class="pnext"><span>"Him what got the swag, sir," continued
-the urchin, endeavouring to make himself clear.</span></p>
-<p class="pnext"><span>"Oh, you mean that you photographed
-the brigand!" replied the skipper as he
-caught sight of the negatives, and snatched
-at them eagerly, a new light coming into his eyes.</span></p>
-<p class="pnext"><span>"Yessir!" exclaimed the lad. "Him what
-said he was a King of the Desert."</span></p>
-<p class="pnext"><span>"Gadget!" exclaimed the captain, after a
-brief examination of the films, which were
-really three fine, clearly defined pictures of
-the </span><em class="italics">Scorpion</em><span>, showing her in mid-air, when
-alongside the </span><em class="italics">Empress</em><span>.</span></p>
-<p class="pnext"><span>"Yessir," replied the excited youth, not
-yet certain whether he was going to be hanged
-or praised for his offence.</span></p>
-<p class="pnext"><span>"You have shown more wit and skill than
-anyone on board the airship. You shall be
-well rewarded for this, I promise you. How
-on earth you managed to get three good snapshots
-like these, all showing different angles of
-the machine, and to hide them away, is beyond me!"</span></p>
-<p class="pnext"><span>"Thank you, sir! Thought you'd like
-'em," and the boy's eyes sparkled even more
-than ever as the captain shook him by the
-hand, and planted five new, crisp Bradburys
-therein, then dismissed him.</span></p>
-<p class="pnext"><span>"Great Scott!" exclaimed the captain,
-"but that little urchin's saved my reputation.
-These photographs may prove of more value
-to the authorities than the lost treasure. I
-feel a different man. Here is extraordinary
-evidence against the culprit. One photograph
-shows the fiend actually firing a burst
-at the twin engines in the rear gondola,
-and another the faces of the two occupants
-above the fuselage. They will show more
-evidence still when they have been
-enlarged." And the captain, after carefully
-drying them, placed them in an envelope
-and put them into his inner coat pocket,
-muttering:--</span></p>
-<p class="pnext"><span>"Smart little beggar! I wish I hadn't
-punished him the other day for smuggling
-that tobacco aboard."</span></p>
-<p class="pnext"><span>The captain, who had left strict instructions
-that he should be called half an hour before
-the end of the watch, in order that he might
-relieve the navigating officer, was just about to
-lie down on the couch for a brief spell, when
-suddenly another knock at his cabin door
-startled him, and immediately after his servant
-entered and announced: "Seven bells, sir."</span></p>
-<p class="pnext"><span>"Already?" exclaimed the captain.</span></p>
-<p class="pnext"><span>"Yes, sir."</span></p>
-<p class="pnext"><span>"Has the moon set, yet?"</span></p>
-<p class="pnext"><span>"Yes, it is quite dark now, sir."</span></p>
-<p class="pnext"><span>"All right. Tell the navigating officer that
-I'll be down in one moment."</span></p>
-<p class="pnext"><span>At this very instant the telephone bell
-which connected the cabin with the navigating
-gondola rang furiously. Snatching up the
-receiver, the captain asked, "What's the
-matter, Donaldson? Is there another raider
-on the starboard bow?"</span></p>
-<p class="pnext"><span>"No, sir, but there's something very much
-like a signal flash away in the north-west."</span></p>
-<p class="pnext"><span>"Sure it wasn't a shooting star?"</span></p>
-<p class="pnext"><span>"More like a Very light, sir, but very
-faint," replied the navigating officer. "Shall
-I reply, sir?"</span></p>
-<p class="pnext"><span>"Yes, give him three red lights. I expect
-it's one of the patrols looking for us. I'm
-coming down now," and the captain replaced
-the receiver, and made haste down the
-corridor which led to the chart and navigation
-room.</span></p>
-<p class="pnext"><span>The next instant three red balls of fire fell
-from the airship earthwards in rapid succession,
-and within a couple of minutes a faint
-gleam of greenish light fell like an arc in the
-north-western sky.</span></p>
-<p class="pnext"><span>"Yes, the patrols have found us, sure
-enough," exclaimed the captain, who had now
-joined the officer.</span></p>
-<p class="pnext"><span>After several further exchanges of fire-balls,
-repeated now from two or three quarters, the
-searchers closed in upon the straggler. Then
-a rapid dialogue took place by means of the
-morse lamp, and, when dawn came, shortly
-afterwards, no less than six fighting scouts,
-running at about a quarter throttle,
-surrounded the wounded leviathan, and escorted
-her towards Cairo.</span></p>
-<p class="pnext"><span>When the </span><em class="italics">Empress</em><span> reached that town, she
-was already twenty-four hours overdue at
-London, so the cables and the wireless stations
-were busy with messages relating to the
-missing liner, and with more than one inquiry
-as to the safety of her cargo, evidently from
-the consignees, or more likely still, from the
-underwriters.</span></p>
-<p class="pnext"><span>And when the captain told his story to the
-Commissioner of Aerial Police at Cairo there
-was another mighty stir, and both the cables
-and the wireless were busy again, for the
-whole civilized world was tingling with
-excitement to know something tangible about this
-man of mystery--the phantom airman. And
-the story of Gadget's photographs was told to
-the world.</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="diamond-cut-diamond"><span class="bold large">CHAPTER XV</span></p>
-<p class="center pnext"><span class="bold medium">DIAMOND CUT DIAMOND</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>While the events recorded in the last few
-chapters were taking place, a series of
-adventures not less exciting and perilous had
-befallen the two airmen, Keane and Sharpe, in
-their endeavours to track that ingenious
-conspirator, Professor Rudolf Weissmann, in
-his secret retreat within the dark recesses of
-the Schwarzwald.</span></p>
-<p class="pnext"><span>After their midnight consultation with
-Colonel Tempest at Scotland Yard, their
-instructions were to proceed early next day,
-by whatever aircraft was then available, to
-Germany, and once there to adopt some
-suitable disguise, and institute forthwith a most
-rigorous search for the secret aerodrome.
-They were to leave no stone unturned in their
-efforts to track down this great German
-irreconcilable, who had dared to hold a pistol
-at the civilized world, and to bring back, if
-possible, some tangible clue concerning his
-two great discoveries.</span></p>
-<p class="pnext"><span>"Time is short," the colonel said.
-"Immediate action on our part is vital. Spare
-no expense in the venture, and if necessary
-you must even proceed to extreme measures
-to capture this daring outlaw and his accomplices."</span></p>
-<p class="pnext"><span>"And what about this phantom aeroplane?"
-asked Keane. "Apparently it has already
-left the Schwarzwald on its piratical expedition."</span></p>
-<p class="pnext"><span>"It may return, and you must watch for
-it. Some of those scattered inhabitants of
-the Black Forest are sure to have seen or
-heard something of it. Its trial trips must
-have been carried out somewhere in the
-vicinity."</span></p>
-<p class="pnext"><span>"They are a simple and primitive type of
-people who still inhabit those forest wastes;
-wood cutters, lumbermen, makers of little
-wooden clocks and musical boxes, most of
-them, I believe," added Sharpe, who had often
-traversed those regions as a British spy during
-the Great War.</span></p>
-<p class="pnext"><span>"Then they should be easier to handle,"
-added the commissioner of aerial police, who
-had a ready method of brushing away
-apparent difficulties. "I am compelled to rely
-almost entirely upon your efforts. Take your
-pocket-wireless telephones with you and a
-sufficient quantity of German gold and silver,
-and start directly you have had a few hours'
-rest."</span></p>
-<p class="pnext"><span>"We will get away immediately after
-breakfast, sir," replied Keane, who had already
-made up his mind as to how he should proceed
-in the matter, for he had fixed up his jumping-off
-ground for the Schwarzwald, and also the
-type of disguise he intended to adopt.</span></p>
-<p class="pnext"><span>"Good-bye, both of you, and may good
-fortune attend you!" said the colonel.</span></p>
-<p class="pnext"><span>"Good-bye, sir."</span></p>
-<p class="pnext"><span>Big Ben was striking three o'clock as they
-left Scotland Yard and made for their quarters,
-which were in that part of London known
-as The Adelphi, a quaint, old-fashioned
-ensemble of buildings of the Georgian period,
-overlooking the Thames, not far from the
-Watergate. A few minutes later they bade
-each other good-night, and turned in for a
-few hours' sleep before their long flight across
-England and France.</span></p>
-<p class="pnext"><span>At seven o'clock they were breakfasting
-together in a private room overlooking the
-river, and discussing the details of their
-coming adventure.</span></p>
-<p class="pnext"><span>"The Schwarzwald!" Sharpe was saying,
-as he helped himself to another egg and a
-rasher of ham. "Where do you think, now,
-we had better start from, Captain Keane?"</span></p>
-<p class="pnext"><span>"Mulhausen," replied the other promptly,
-for with Keane the initial procedure was
-already cut and dried.</span></p>
-<p class="pnext"><span>"Mulhausen? Capital! I was thinking
-of Strasburg, but your idea is better still.
-Is there a good aerodrome there where we can
-land?"</span></p>
-<p class="pnext"><span>"Yes, on the banks of the little river Ill,
-which runs into the Rhine a little lower down.
-And once across the Rhine we are already in
-the Black Forest, though we shall still have
-a long tramp to the place which I suspect,"
-added Keane, pouring out another cup of coffee.</span></p>
-<p class="pnext"><span>"Oh, yes, I remember the place; the
-aerodrome is near the junction of the
-Rhine-Rhone Canal," replied his companion.</span></p>
-<p class="pnext"><span>"You've got it, exactly. Now we must
-get away; it must already be seven o'clock,
-and a fine morning to boot. What says the
-weather report about the Channel crossing?"</span></p>
-<p class="pnext"><span>"Here it is," exclaimed Sharpe, passing a
-copy of the </span><em class="italics">Times</em><span> across to his friend, who
-turned over the pages and read as follows:--</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>"Flying prospects for to-day:--South-east
-England and Continent, including the
-Channel crossing, favourable for flying
-for all types of machines till mid-day,
-after that conditions will deteriorate,
-squalls and heavy rains will predominate,
-visibility will be poor, and conditions
-will become unsuitable for cross-country
-flying."</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>"Good! Then we must get away at once,"
-observed Sharpe, and within another five
-minutes they were being hurled along towards
-Hounslow, the aerodrome from which this
-new adventure was to begin.</span></p>
-<p class="pnext"><span>Forty-five minutes later a couple of
-S.E.9s, the fastest machines in the service,
-rose from the flying ground and steered a
-course east-south-east for the Straits of
-Dover. Thirty-five minutes later, the
-necessary signals having been accepted by the
-Dover patrols, with throttles wide open, the
-two daring young aviators rushed the Channel
-at one hundred and fifty miles an hour.</span></p>
-<p class="pnext"><span>The French patrols having been informed by
-Dover, permitted them to pass unchallenged.
-And now changing course till they steered
-almost due south-east, they sped onwards,
-catching now and again a glimpse of the old
-battle-front of the days of 1914-1918, where
-the shell-marked craters of the Hindenberg
-line were still visible from the air.</span></p>
-<p class="pnext"><span>Then they followed the railway line from
-Laon to Rheims, left the ancient town of
-Nancy to their left, and, crossing the Vosges
-Mountains and forests a little to the north of
-Belfort, they dropped down quietly to the
-landing ground outside Mulhausen in Alsace,
-as the clock in the Market Square struck the
-hour of noon.</span></p>
-<p class="pnext"><span>Having left their machines and flying gear
-in charge of the commandant, they entered
-the town, purchased a portable camp outfit,
-and, dressed as tourists of the pedestrian and
-naturalist type, continued their journey,
-crossed the Rhine and entered the Schwarzwald,
-ostensibly to study the fauna and flora
-of the Black Forest.</span></p>
-<p class="pnext"><span>"Phew! I'm tired of this load. Let us camp
-here for the night, by this little clearing, where
-these seldom trodden footpaths diverge,"
-said Keane, some hours later, as, weary and
-dusty with his three hours' tramp through
-the bracken and the tousled undergrowth,
-he threw down his heavy knapsack and nets,
-and began to wipe the perspiration from his
-forehead.</span></p>
-<p class="pnext"><span>Then they lit a small fire of dried twigs,
-cooked their evening meal, and lit their pipes.</span></p>
-<p class="pnext"><span>After a quiet smoke, during which time
-they carefully re-examined a survey map of
-the Schwarzwald, they began to talk in
-low whispers, whilst the sun descended
-amongst the pines on the western heights,
-over which they had dragged their weary feet.</span></p>
-<p class="pnext"><span>"It is my opinion," whispered Keane,
-"that we are within five miles of that secret
-aerodrome."</span></p>
-<p class="pnext"><span>His companion nodded, almost drowsily,
-although every faculty was kept constantly alert.</span></p>
-<p class="pnext"><span>"It is just possible that one of these paths
-leads to the very spot, but it will be necessary
-to explore them both. We must be extremely
-careful, however, for this professor is sure
-to prove a wily opponent. I hope, however,
-some wood-cutter or peasant may pass this
-way soon, and that we may learn something
-from him which will help us," continued
-the senior airman.</span></p>
-<p class="pnext"><span>"What if the wood-cutter should prove
-to be the professor himself?" asked Sharpe,
-with a humorous twinkle in his eyes.</span></p>
-<p class="pnext"><span>"It is even possible," returned his companion.</span></p>
-<p class="pnext"><span>"In that case it would be diamond cut
-diamond, Keane, eh?"</span></p>
-<p class="pnext"><span>The other shrugged his shoulder at the
-very thought, and prayed that such a
-contingency might not happen, at any rate
-until something tangible had first been
-discovered.</span></p>
-<p class="pnext"><span>"In three hours it will be midnight," he
-said. "If no one passes this way by then,
-I think we must carry out our search in the
-dark. Time is pressing; we must find
-something within another forty-eight hours, or
-poor old Tempest will be at his wit's end,
-and calling us home again. He cannot leave
-us long on this trail."</span></p>
-<p class="pnext"><span>"The greater the pity. A fortnight is not
-too long to follow a trail like this," said
-Sharpe.</span></p>
-<p class="pnext"><span>"Yet you had to do things pretty smartly
-in those dark days of 1917 and 1918, Sharpe."</span></p>
-<p class="pnext"><span>"Yes, and there was some danger and
-excitement attached to it, which sharpened
-one's wits."</span></p>
-<p class="pnext"><span>"Never fear! There'll be both before
-we have finished this trek," returned Keane.</span></p>
-<p class="pnext"><span>"Hist! What was that?" said Sharpe
-in an undertone, as he caught the sound of
-broken twigs.</span></p>
-<p class="pnext"><span>"Someone approaching," whispered his companion.</span></p>
-<p class="pnext"><span>They listened acutely now, with every
-sense keenly alert. Again they heard the
-sound, and it seemed to come from the
-western side of the open glade, where the last
-dull glow of the sunset still revealed the edge
-of the forest.</span></p>
-<p class="pnext"><span>The camp fire had died down to a smoulder,
-but Keane instinctively held his ground
-sheet before the dying embers, lest their
-presence should be betrayed. He was anxious
-to learn something of the nature of this
-visitor before he revealed himself.</span></p>
-<p class="pnext"><span>"Bah! It is some creature of the forest,"
-observed Sharpe, after a moment's hesitation.
-"A wild boar or a red-spotted deer, most likely."</span></p>
-<p class="pnext"><span>He was right, for the next moment a series
-of grunts proceeded from the spot whence
-came the sounds, and, as though suddenly
-startled by the consciousness of some human
-presence, the beast, a fine specimen of the
-</span><em class="italics">Sus Scrofa</em><span>, with fierce protruding tusks and
-long stiff bristles, broke cover, trotted swiftly
-across the glade, within thirty yards of the
-two watchers, and entered the forest on the
-other side.</span></p>
-<p class="pnext"><span>"So much for that little incident,"
-muttered Sharpe, as he released his grip of the
-Webley pistol, which his right hand had
-instinctively grasped, when the dark shadow
-broke from the margin of the trees.</span></p>
-<p class="pnext"><span>Keane shook his head as though he disagreed
-with his companion, and remarked in a low
-voice, "The creature was evidently startled
-or it would not have fled like that. Its
-scent is very keen, and as the wind is blowing
-from the west, it suspected danger from that
-quarter."</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="the-ghostly-visitant"><span class="bold large">CHAPTER XVI</span></p>
-<p class="center pnext"><span class="bold medium">THE GHOSTLY VISITANT</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>A few moments later the two men were
-startled by the sound of a human voice,
-trolling out the words of some German
-folk-song, and approaching from the same quarter
-towards the clearing.</span></p>
-<p class="pnext"><span>"This is our man," exclaimed Keane, as
-he removed the screen from the fire and
-stirred the dying embers into a cheerful blaze,
-piling on more dried twigs, so that the trees
-about the glade seemed to dance like fairies.</span></p>
-<p class="pnext"><span>"Some woodman or peasant returning
-from a party," observed Sharpe.</span></p>
-<p class="pnext"><span>"I wonder where his cottage is," replied
-his friend; "it must be somewhere in the
-neighbourhood."</span></p>
-<p class="pnext"><span>"We must welcome him to a belated supper.
-Perhaps this good Rhine wine will open his
-lips still more, and he may tell us something
-about the birds of the Schwarzwald."</span></p>
-<p class="pnext"><span>"Particularly the phantom-bird," facetiously
-observed Keane with a smile.</span></p>
-<p class="pnext"><span>Nearer and nearer came the stranger,
-breaking occasionally into snatches of song,
-as though he would frighten away the goblins
-and weird creatures of the forest, for of the
-superstitious peoples of Europe, the peasantry
-of the Black Forest are most given to
-credulous beliefs. Perhaps this is because
-no other district of Europe is so rich in
-quaint legend, folklore and ghostly tradition.</span></p>
-<p class="pnext"><span>Now and then the approaching stranger
-would stop his singing to address some remark
-to a companion; evidently some beast of
-burden trudging beside him. The next
-moment the figure of a man, leading a
-pack-horse through the forest, suddenly emerged
-upon the clearing. Catching a sight of the
-dancing flames which mounted skyward
-as one of the airmen stirred the fire into
-life, and beholding the dark figures of
-the two strangers, the newcomer, suddenly
-stopped, apparently half-terrified by the
-sudden apparition.</span></p>
-<p class="pnext"><span>"Geistlich!" he muttered, staring with
-wide-open eyes towards the sudden flame.</span></p>
-<p class="pnext"><span>"Guten abend, freund!" exclaimed
-Keane, wishing to draw the man into conversation.</span></p>
-<p class="pnext"><span>The man's fears departed as soon as he
-discovered that he was addressed by human
-beings like himself, for in his first wild flight of
-fancy he feared it was far otherwise, and that
-he had suddenly come upon one of those
-forbidden glades, where the sprites and goblins
-dance after dark.</span></p>
-<p class="pnext"><span>"Guten abend!" he replied, and, being
-asked to join the company, made haste to
-do so, reining in his loaded horse and tethering
-him to a tree-stump close by.</span></p>
-<p class="pnext"><span>"'Tis late to travel these lonely woods,
-friend," said Keane in excellent German.</span></p>
-<p class="pnext"><span>"Yes, 'tis late, but the moon will soon be
-up, and then, why, 'twill be better footing,"
-replied the stranger, whose full, round face
-and longing eyes were already directed
-towards a wicker-covered bottle, which seemed
-to hold something good, so that he smacked
-his lips once or twice, and in fancy he was
-already draining the sweet nectar which the
-bottle contained.</span></p>
-<p class="pnext"><span>"Have you far to go?" asked Sharpe.</span></p>
-<p class="pnext"><span>"Why, yes, 'tis another seven miles to my
-cottage in the woods."</span></p>
-<p class="pnext"><span>"Then stay with us an hour until the
-moon shall rise and clear away the goblins
-of the Schwarzwald," urged Keane, who, by
-this time, had been able to examine the
-stranger's face by the light of the fire, and to
-read it like a book.</span></p>
-<p class="pnext"><span>"A simple, credulous fellow, a true peasant
-of the Schwarzwald, untouched by the outer
-world," he told himself. "He should be
-useful to us." Then, passing to him the
-wicker-covered bottle, he said:--</span></p>
-<p class="pnext"><span>"Good Rhine wine from Bacharach, Hans.
-Taste it!"</span></p>
-<blockquote>
-<div>
-<div class="line-block outermost">
-<div class="line"><span>"Ach, from Bacharach on the Rhine,</span></div>
-<div class="line"><span>Comes the finest sort of wine,"</span></div>
-</div>
-</div>
-</blockquote>
-<p class="pfirst"><span>exclaimed the stranger in the rude dialect
-of the Black Forest, and his round eyes
-sparkled as he clutched the bottle, raised it
-to his lips, and drank half a pint without
-stopping to take breath.</span></p>
-<p class="pnext"><span>"'Tis a long time since I tasted such rich
-and luscious wine, gentlemen," said the
-peasant, handing back the bottle.</span></p>
-<p class="pnext"><span>"Pray be seated and rest awhile," urged
-his companions, and nothing loath to keep
-such excellent company, Hans, if such was
-really his name, sat down by the fire.</span></p>
-<p class="pnext"><span>"Pray, what brings you to the lonely
-Schwarzwald, gentlemen? Have you come
-to hunt for the wild boar, or to fish the
-mountain streams?" he asked, "for I can
-show you where the biggest fish are to be
-found, and where the wild pig rears her
-litters."</span></p>
-<p class="pnext"><span>"Butterflies and birds, especially birds,"
-replied Keane, pointing to his nets, and his
-neat little boxes for packing specimens.</span></p>
-<p class="pnext"><span>"Birds? Ach, there is one bird which
-sometimes flies in these parts which you
-will never catch," said the peasant, speaking
-in lowered tones, as though half-frightened
-by his own words.</span></p>
-<p class="pnext"><span>"Ha! What bird is that?" asked the others.</span></p>
-<p class="pnext"><span>"Hist!" exclaimed Hans, raising his
-forefinger, and looking guardedly around. "It
-is the phantom-bird!"</span></p>
-<p class="pnext"><span>"The phantom-bird?" echoed the two
-airmen, who could scarcely believe their eyes
-and ears, as they earnestly regarded this
-solemn, frightened, half-childish man, who
-had evidently seen the very thing they had
-come so far to find, but who believed it to be
-something supernatural.</span></p>
-<p class="pnext"><span>The two Englishmen glanced at each other.
-Had they really found someone who could
-enlighten them about this mysterious
-aeroplane, for he could certainly be referring to
-nothing else? And at that moment Keane
-blessed his lucky star, which had led him to
-choose these wild forest regions for their
-jumping-off ground. Still, they must not
-appear too curious, lest they should betray
-the reason of their presence here.</span></p>
-<p class="pnext"><span>Keane shook his head as, with an apparently
-incredulous laugh, and a sympathetic motion
-of the hand, he would banish all tales of
-ghostly visitants to the realm of limbo.
-This only had the effect of egging on the
-speaker to tell his tale, however.</span></p>
-<p class="pnext"><span>"Ach, Himmel!" he exclaimed. "Es war geistlich!"</span></p>
-<p class="pnext"><span>"Did you see it, then?"</span></p>
-<p class="pnext"><span>"Ya, das hab ich!" returned the other.</span></p>
-<p class="pnext"><span>"Was it in the day or the night-time when
-you saw it?" asked Sharpe.</span></p>
-<p class="pnext"><span>"It was night, about this time, and
-there was but a half-moon above the tree tops."</span></p>
-<p class="pnext"><span>"Were you very much frightened, Hans?"</span></p>
-<p class="pnext"><span>"Yes, I was scared to death almost. I
-thought the old man of the mountains had
-come for me. I had been to market to sell
-my little wooden-clocks, and near this very
-place the huge grey phantom bird swooped
-down, then circled round and round and
-disappeared there, over there!" and the
-peasant, his eyes almost starting out of his
-head with terror, pointed away to the east.</span></p>
-<p class="pnext"><span>"Bah! It was no bird, it was an aeroplane,
-Hans. You should not have been frightened,"
-exclaimed Keane, who had been taking
-particular note of the direction in which the
-mysterious machine had disappeared.</span></p>
-<p class="pnext"><span>"Yes, a ghost-aeroplane!" iterated the
-Schwarzwalder. "There has never been anything
-like it before."</span></p>
-<p class="pnext"><span>"Did anybody else see it?" queried Sharpe,
-passing the bottle once again to Hans, who
-stayed but a moment to wipe his lips with his
-sleeve, and to take another deep drink of the wine.</span></p>
-<p class="pnext"><span>"Ja, it was seen by Jacob Stendahl the
-same night, not far from this very place."</span></p>
-<p class="pnext"><span>"And who is Jacob Stendahl?" asked Keane.</span></p>
-<p class="pnext"><span>"He is the woodcutter whose cottage is
-down by the stream, two miles away. That
-path leads to his house. He was terrified;
-he said it was an evil omen, and next morning
-his little Gretchen died."</span></p>
-<p class="pnext"><span>"And what happened to you, Hans?" asked Sharpe.</span></p>
-<p class="pnext"><span>"That same night my sow farrowed, and
-all the litter were dead next morning," replied
-the peasant gravely.</span></p>
-<p class="pnext"><span>A deep silence followed this last remark, and
-the Schwarzwalder brooded over his misfortune,
-and lamented to himself the loss of his
-fine litter of young pigs.</span></p>
-<p class="pnext"><span>The two airmen felt certain now that Hans
-had really seen the mysterious aeroplane,
-and they plied him with a dozen further
-questions as to the noise it made in passing,
-and the speed at which it travelled, and
-whether anyone else had seen or heard of it.
-To some of their questions Hans could give
-no coherent answer. He said, however, that
-very few people lived in this part of the
-forest, and parts of it were seldom or never
-trodden by human foot. He had spoken
-to one or two about it, and they also had
-either seen or heard of it from someone else,
-and the general opinion amongst the Schwarzwalders
-in that part, was, that it was one of
-the dead German airmen, whose spirit came
-to visit the spot in a ghost-aeroplane.</span></p>
-<p class="pnext"><span>"Which of the German aces is it, then,
-that revisits this place, do they think?"
-asked Keane.</span></p>
-<p class="pnext"><span>"Some say that it is the ghost of Immelmann,
-who used to come here before the war to
-hunt the wild boar; others say that it is the
-spirit of Richthofen, but I cannot say,"
-replied Hans.</span></p>
-<p class="pnext"><span>On the question of speed and noise,
-however, the peasant declared that he was
-certain.</span></p>
-<p class="pnext"><span>"It must have been a ghost-aeroplane,"
-he said, "because it was silent, and its speed
-was like the passing of a spirit when it leaves
-the body."</span></p>
-<p class="pnext"><span>A deep silence followed these words, but
-at the end of a few minutes Hans, pointing
-to the east, said:--</span></p>
-<p class="pnext"><span>"Look, friends, the moon is rising already.
-It is getting lighter, and I must go."</span></p>
-<p class="pnext"><span>Then, untethering his pack-horse, he
-thanked the strangers for their hospitality,
-gave them the direction and situation of his
-cottage, where they would be welcome,
-should they care to visit him during their
-stay in the Schwarzwald, and, bidding them
-adieu, started off on his journey through the
-forest.</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="the-watchers"><span class="bold large">CHAPTER XVII</span></p>
-<p class="center pnext"><span class="bold medium">THE WATCHERS</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>They watched the Schwarzwalder and his
-beast of burden disappear into the forest,
-then for some minutes the two Englishmen,
-buried in thought, sat by the embers of the
-fire. Neither spake to his companion for a
-while, as, deep in contemplation, each
-endeavoured to fathom in his own mind this
-secret of the phantom aeroplane, this riddle
-of the sphinx. At last Keane addressed his
-colleague.</span></p>
-<p class="pnext"><span>"This travelling clock-maker has confirmed
-our theory, Sharpe," he said.</span></p>
-<p class="pnext"><span>"Yes, the simple fellow has helped us not
-a little," replied the other.</span></p>
-<p class="pnext"><span>"We must continue our search without
-further delay, lest this talkative peasant
-should himself encounter this genius, and
-unwittingly announce the presence of two
-strangers in the forest. That is my great
-fear now."</span></p>
-<p class="pnext"><span>"You don't think this fellow misled us, Keane?"</span></p>
-<p class="pnext"><span>"Why do you ask? He was too dull-witted
-to be anything in the nature of an
-accomplice," replied the captain.</span></p>
-<p class="pnext"><span>"Quite so, but he might have been a tool
-in the hands of this mystery man," added
-Sharpe, as a sudden feeling of suspicion shot
-across his mind.</span></p>
-<p class="pnext"><span>"In that case we ought to have followed
-him, but I scarcely think it worth while. A
-dull-witted man of that type would have been
-too dangerous to his employer, even when
-used merely as a tool. The only danger I
-anticipate from that quarter, unless I am
-utterly mistaken, is that the fellow may
-encounter someone in the forest who is
-engaged in the plot, and thus reveal our
-presence, as I stated previously," observed
-Keane, as he began to get his traps together,
-ready for the march.</span></p>
-<p class="pnext"><span>"Anyhow, we have learned something from
-the Schwarzwalder."</span></p>
-<p class="pnext"><span>"By the way, Sharpe, you might tune up
-your little wireless pocket 'phone, and ascertain
-if there are any messages floating around."</span></p>
-<p class="pnext"><span>"So I will; we might pick up something,"
-replied the junior airman, and the next
-moment he climbed into a straggling,
-low-branched tree, uncoiled a small aerial, and,
-starting his little battery, listened attentively
-for any stray message that might be floating
-through the ether.</span></p>
-<p class="pnext"><span>"Anything?" asked Keane, coming to the
-foot of the tree.</span></p>
-<p class="pnext"><span>"Nothing," remarked the other.</span></p>
-<p class="pnext"><span>"Then we'll push off."</span></p>
-<p class="pnext"><span>Five minutes later, having adjusted their
-packs, collected their nets, and having stamped
-out the remains of the fire, they were ready
-to start.</span></p>
-<p class="pnext"><span>"Which path shall we take?" asked
-Sharpe, for there were two ill-defined,
-grass-grown tracks which led away from the
-clearing. One led past Jacob Stendahl's cottage,
-and had been followed by the Schwarzwalder,
-and the other, the lesser trodden of the two,
-led they knew not where.</span></p>
-<p class="pnext"><span>"Let us take the one on the right," said
-Keane, indicating the latter. "It is more
-likely to yield us something," and the next
-moment they were hidden from sight amid the
-dense undergrowth of this part of the forest.</span></p>
-<p class="pnext"><span>Scarcely had they disappeared from view
-when one of the upper branches of a tree near
-to the edge of the clearing suddenly appeared
-to move, then to swing loosely for a second,
-and drop to the ground. Then for a moment
-there was silence, save for the call of a
-nightjar which had been disturbed, but a moment
-later a dark shadow debouched from the
-edge of the forest and crossed quietly but
-quickly to where the fire had been burning
-a few minutes previously.</span></p>
-<p class="pnext"><span>A low whistle, repeated twice, brought a
-similar shadow from the opposite side of the
-clearing, and the two indistinct, but human
-shapes, met each other face to face.</span></p>
-<p class="pnext"><span>"Who were they, Professor?" asked the
-second arrival of the first.</span></p>
-<p class="pnext"><span>"Himmel! Ich weiss nicht, Strauss,"
-replied his companion, who was none other
-than the renowned Professor Rudolf Weissmann,
-"but I fear that they portend us no good."</span></p>
-<p class="pnext"><span>"Let us examine the ground to see if they
-have left any clue behind."</span></p>
-<p class="pnext"><span>So for the next few minutes the professor and
-his mechanic searched the ground carefully
-for any little souvenir which the travellers
-might have left behind them. And whilst
-they searched, they talked in low, but eager
-whispers.</span></p>
-<p class="pnext"><span>"Did you hear that half-witted Schwarzwalder
-talking aloud about the </span><em class="italics">Scorpion</em><span>?"
-asked the professor.</span></p>
-<p class="pnext"><span>"Yes. He called it a phantom-bird,
-did he not?" replied Strauss. "I heard
-nearly all he said, he spoke so loudly and
-coarsely."</span></p>
-<p class="pnext"><span>"Could you hear what the others said?"</span></p>
-<p class="pnext"><span>"Not a word; they spoke so quietly, save
-once or twice when they spoke to the clock-maker."</span></p>
-<p class="pnext"><span>"Nor could I, and that is what makes me
-so suspicious," returned Weissmann.</span></p>
-<p class="pnext"><span>"They spoke good German, though,"
-ventured the mechanic.</span></p>
-<p class="pnext"><span>"Bah! Of course they would. Nevertheless,
-it's my firm opinion that they're
-foreigners, and that they're here for some
-special reason."</span></p>
-<p class="pnext"><span>"And that reason is?"</span></p>
-<p class="pnext"><span>"To find out about the </span><em class="italics">Scorpion</em><span>," snarled
-the mathematician.</span></p>
-<p class="pnext"><span>"Ach!" exclaimed the other; "the </span><em class="italics">Scorpion</em><span>
-is two thousand miles away."</span></p>
-<p class="pnext"><span>"Then their next business is to find the
-aerodrome," said the professor.</span></p>
-<p class="pnext"><span>"Blitz! that they'll never do except by
-accident. Think of those live wires waiting
-for them if they get within a hundred yards
-of it. We have found six dead men there
-already; I don't want to dig any more
-graves," returned Strauss.</span></p>
-<p class="pnext"><span>They had continued the search for fully ten
-minutes, and the professor, occasionally
-flashing his pocket torch, was carefully examining
-the long grass within a radius of some twelve
-of fifteen feet of the spot where the fire had
-been. Wise man that he was, he carried
-out his final investigation to the leeward
-of the fire, trusting that the breeze might
-have carried some paper fragment, used
-in lighting a pipe or starting the fire, in
-that direction. Nor was he disappointed.
-He was just about to conclude his search,
-however, when his sharp eyes caught sight of
-a piece of half burnt and twisted paper
-hidden away amongst the longer grass.</span></p>
-<p class="pnext"><span>"Donnerwetter!" he exclaimed under his
-breath, as he flashed his torch upon the paper
-for a second. "I thought so; here is evidence
-enough for an execution."</span></p>
-<p class="pnext"><span>"What is it, mein herr?" asked the
-mechanic, hastening to his side.</span></p>
-<p class="pnext"><span>"Do you see that?" said his companion,
-untwisting the paper once again and flashing
-a light upon it.</span></p>
-<p class="pnext"><span>"Ja! ja!" replied the other as he strained
-his eyes in the attempt to decipher the
-handwriting on the half-burnt sheet. "But I
-cannot understand it, for it is in a foreign
-language."</span></p>
-<p class="pnext"><span>"It is part of a small fragment of an
-envelope, and the writing, which is in English,
-is certainly almost undecipherable, but I can
-distinguish the letters '...eane'."</span></p>
-<p class="pnext"><span>"Ach, Himmel! That is Keane!" replied
-Strauss. "He is one of the aerial police,
-is he not?"</span></p>
-<p class="pnext"><span>"You are right, Fritz. This letter was
-addressed through the English post to Captain
-Keane, one of Tempest's best men, if not
-indeed his most brilliant 'brain-wave,'"
-hissed the professor.</span></p>
-<p class="pnext"><span>"Donner und blitzen! Then he has come
-here to search for the </span><em class="italics">Scorpion</em><span>, and the
-aerodrome."</span></p>
-<p class="pnext"><span>"Yes, but look, he only left London
-a few hours ago, for here is the London
-postmark in the corner, bearing yesterday's
-date."</span></p>
-<p class="pnext"><span>"And his companion? Who is he?"
-asked the mechanic.</span></p>
-<p class="pnext"><span>"It must be that other scout pilot, Sharpe;
-they work together. But, mark my word,
-Friedrich Strauss, they are mistaken if they
-think to find an easy victim in Professor Rudolf
-Weissmann. I'll teach them to track me
-like a murderer through the Schwarzwald.
-They have come to the Black Forest, and
-here they shall stay." And for once, the
-quiet, mild-mannered professor jerked out
-his words with unusual vehemence.</span></p>
-<p class="pnext"><span>The mechanic saw that his chief was deeply
-agitated by this sudden discovery, which
-confirmed all his recent fears, and to allay his
-feelings, he said,</span></p>
-<p class="pnext"><span>"But they will never find the aerodrome,
-Professor, or, if indeed they find it, they will
-never enter it alive; think of the preparations
-you have made for all uninvited guests,"
-and the speaker shuddered, for he knew
-something of the terrors of that "death-circle"
-in the lonely forest.</span></p>
-<p class="pnext"><span>"Bah! it is my secret they want, the
-secret of that mysterious power which drives
-the </span><em class="italics">Scorpion</em><span>."</span></p>
-<p class="pnext"><span>"Uranis?" ventured the other.</span></p>
-<p class="pnext"><span>The professor nodded, for he regarded it as
-the greater success of the two. Without it
-the </span><em class="italics">Scorpion</em><span> would be useless; with it a
-dozen </span><em class="italics">Scorpions</em><span> could be built, once the
-facilities were provided. Unfortunately the
-discovery had been effected too late to win
-the war for the Fatherland. Besides, he had
-not received the encouragement from the
-government that he had deserved, and his soul
-was consequently embittered.</span></p>
-<p class="pnext"><span>"Come," he said at last, "we must get
-back to the aerodrome and watch for these
-half-witted Englishmen. Once there we can
-afford to laugh at them. They will soon be
-held in a vice. But I must send a further
-message to the </span><em class="italics">Scorpion</em><span> out on the Hamadian
-plains, hinting how matters stand. After
-that communications may have to cease for
-a while. As for these death-hunters, they
-will find out presently that they are up against
-something far more terrible than anything
-which old Jacob Stendahl or the wood-cutter
-have ever imagined in their wildest fancy.
-The secret of the Schwarzwald is not for them.
-I hold the master-key, Fritz, and when I
-die that master-key will be broken."</span></p>
-<p class="pnext"><span>And the two men, who had been aware of
-the presence of the Englishmen ever since
-they entered the forest, and had watched
-them accordingly, now moved off in the same
-direction which the latter had taken half an
-hour before.</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="live-wires"><span class="bold large">CHAPTER XVIII</span></p>
-<p class="center pnext"><span class="bold medium">"LIVE WIRES"</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>Matters in the Schwarzwald were now
-rapidly nearing a climax; the final contest
-between German brains and English wit could
-not much longer be delayed. For the moment
-Keane and Sharpe, unknown to themselves,
-were enmeshed in the network of a deathly
-trap. Nothing less than a miracle, or
-something approaching the same, could now set
-them free from their perilous position. One
-thing was certain, and that was that this
-clever but unscrupulous mathematician and
-engineer, who was now their declared enemy,
-would not hesitate to adopt the most extreme
-measures to get rid of his unwelcome visitors.
-Unfortunately his power, which almost
-approached the supernatural, made him a
-dangerous and a wily foe.</span></p>
-<p class="pnext"><span>It was now past midnight, but the two
-Englishmen, who had left the track some time
-before at a point where its course was suddenly
-changed, and had continued their journey
-by the aid of a luminous compass, and the
-uncertain light of the moon, came at last to
-another halt.</span></p>
-<p class="pnext"><span>"Let us stay here a while, Sharpe," his
-companion had whispered. "I have a strong
-premonition of some impending danger."</span></p>
-<p class="pnext"><span>"The deuce you have!" remarked Sharpe,
-who well knew what this meant in a man like
-Keane, whose psychic faculties were not to be
-sneered at.</span></p>
-<p class="pnext"><span>"Yes. I cannot explain it, but there is
-some hidden danger right ahead of us; of
-that I am as certain as that we are in the
-Schwarzwald. We had better lie down a
-while and await developments quietly."</span></p>
-<p class="pnext"><span>Nothing loath, Sharpe unfastened his
-shoulder straps, slid his equipment quietly to
-the ground, and laid himself down beside his
-companion.</span></p>
-<p class="pnext"><span>For the moment all was quiet. The moon
-was hidden behind a bank of clouds, and
-it was therefore very dark, but sounds
-travel far in the night air of the forest,
-and when they conversed, they spoke only
-in whispers.</span></p>
-<p class="pnext"><span>"It may be," remarked Keane, "that the
-spot we seek is just in front of us, though I
-cannot see any glade or clearing as yet; it is
-too dark."</span></p>
-<p class="pnext"><span>"Is it likely that there are any booby-traps
-hereabouts, set by this wily professor?"
-asked his companion.</span></p>
-<p class="pnext"><span>"I cannot say; he may have some outer
-system of defence."</span></p>
-<p class="pnext"><span>"Or even a system of ground signals to
-announce the approach of strangers, whose
-presence might be undesirable to him,"
-added Sharpe.</span></p>
-<p class="pnext"><span>"It is possible," whispered Keane, whose
-mind was actively engaged in preparation for
-eventualities, in view of his inexplicable
-premonitions. Suddenly he started and
-touched his comrade lightly with his raised
-forefinger.</span></p>
-<p class="pnext"><span>"Hist!" he said, in a voice which could
-not have carried further than a couple of yards
-Then he carefully raised his head, and, turning
-his eyes towards the thicket through which
-they had come, he tried to read the secret
-which it contained. His alarm was justified,
-yet was he mystified not a little, for the more
-immediate danger seemed to come from behind.</span></p>
-<p class="pnext"><span>"Can you hear it, Sharpe?"</span></p>
-<p class="pnext"><span>"Yes, the same crackling of twigs; another
-wild boar," remarked his friend facetiously.</span></p>
-<p class="pnext"><span>Keane shook his head, for his sensitive
-ears had told him that the footsteps which he
-had heard were those of human beings. Nor
-was he mistaken, for a moment later they both
-heard distinctly, not merely the crackling of
-twigs and the rustle of the bracken under
-heavy footfalls, but voices, human voices,
-conversing in a guarded and careful manner.</span></p>
-<p class="pnext"><span>"None of your Schwarzwald peasants this
-time," he murmured, fingering his Webley
-already, for he instinctively felt that this
-time they were beset by danger both before
-and behind. And indeed, these two men,
-during all their adventures in the secret
-service during the war, were never in more
-deadly peril than at this moment, as they
-were soon to learn.</span></p>
-<p class="pnext"><span>Scarcely daring to breathe, much less to
-whisper now, the two Englishmen watched
-furtively for the coming of the strangers, who
-were now less than a score of yards away,
-but were approaching very stealthily, as
-though they were searching for something on
-the ground.</span></p>
-<p class="pnext"><span>"Who can they be?" wondered Keane.
-"And what can they be searching for?"</span></p>
-<p class="pnext"><span>"Poachers," Sharpe was thinking, "merely
-poachers, searching for their booby-traps."</span></p>
-<p class="pnext"><span>Nearer and nearer came the dark shadows,
-and both the airmen had their Webleys trained
-on them now. In that moment they might have
-shot them down easily, and before long they
-would regret they had not done so. But that is
-not the English way, for the ordinary Englishman
-would give even a dog his chance, as the
-saying goes. Still, there are dogs and dogs,
-and sometimes human dogs are worse than
-the four-footed ones. But the Englishmen
-were uncertain; they did not know what
-world-wide conspirators were these two men.
-They did not know what fearful deeds would
-happen even that day on the Hamadian
-desert, two thousand miles away, but all of it
-engineered from this spot, and made possible
-by these two men. And as they did not know,
-they did not fire, but waited.</span></p>
-<p class="pnext"><span>"Gott in Himmel, where does that
-</span><em class="italics">verdammt</em><span> live wire begin?" asked one of the
-men in a low but vehement voice. It was
-the professor himself, searching for one of
-his own man-traps.</span></p>
-<p class="pnext"><span>Sharpe glanced at Keane, but the other
-motioned him not to fire.</span></p>
-<p class="pnext"><span>"We're learning something, old man!"
-he whispered. "This is the gateway to the
-aerodrome."</span></p>
-<p class="pnext"><span>The two men had passed them now,
-passed within six yards, and yet had missed
-them. They were now groping a little
-way ahead, looking for secret signs and
-marks lest they should be hoist upon their
-own petard.</span></p>
-<p class="pnext"><span>"Donner und Blitzen! Have you found
-it yet, Fritz?" called the professor a little
-louder to his friend.</span></p>
-<p class="pnext"><span>"Here it is, Professor! Be careful ... there
-are six wires already laid for those
-</span><em class="italics">verdammt</em><span> Englishmen, Keane and--what is
-the name of the other?"</span></p>
-<p class="pnext"><span>"Sharpe!" rapped out the professor, as
-though he had known the man all his life.</span></p>
-<p class="pnext"><span>At these words the two Englishmen looked
-at each other in blank amazement. And
-before their astonishment could subside, the
-opportunity which had been given to them of
-ridding the world of two great conspirators
-had passed.</span></p>
-<p class="pnext"><span>"One--two--six!" they heard the
-mechanic say, as he helped the professor over
-the deadly maze, scarcely fifteen yards in front
-of them, and then their dark forms had merged
-into the trees and disappeared, their voices
-becoming fainter and fainter.</span></p>
-<p class="pnext"><span>"Great Scott!" gasped Sharpe, when he
-recovered from his astonishment; "we've
-walked right into the hornets' nest."</span></p>
-<p class="pnext"><span>"We should have done if we'd gone another
-fifteen yards," replied Keane, wiping the
-perspiration from his forehead.</span></p>
-<p class="pnext"><span>"Fortunate you had that presentiment of
-impending danger," said his friend.</span></p>
-<p class="pnext"><span>"We should have been lying dead and half
-grilled over his deadly wires but for that
-strange, weird feeling of mine," replied Keane.</span></p>
-<p class="pnext"><span>"But there, after all our attempts at
-concealment, he knows all about us."</span></p>
-<p class="pnext"><span>"Even our names seem familiar to him,"
-remarked the senior airman, greatly puzzled.</span></p>
-<p class="pnext"><span>"I cannot understand it," replied the other.
-"Who can have given him this information?"</span></p>
-<p class="pnext"><span>"Who indeed?" asked Keane. "It is as
-great a mystery as the other matter."</span></p>
-<p class="pnext"><span>"Can it be the woodcutter or the clockmaker,
-do you think, for Hans is sure to have
-called at Jacob Stendahl's cottage and told
-him the news."</span></p>
-<p class="pnext"><span>But Keane shook his head, as he remarked:
-"Neither Hans nor yet the woodcutter could
-possibly have told the professor our names.
-This evil genius must have other sources of
-information at his command. Possibly he
-has an agent at Mulhausen aerodrome, or
-even at Scotland Yard. To a man like this,
-a thousand ways are open. I cannot say,
-but this I know, we are on the edge of the
-biggest mystery I have ever encountered."</span></p>
-<p class="pnext"><span>"And we might easily have shot him.
-Bah! it would have been better to have
-fired, Keane," added Sharpe somewhat
-bitterly. "Cannot we follow him now?"</span></p>
-<p class="pnext"><span>"No!" replied his companion, firmly.
-"It is better as it is."</span></p>
-<p class="pnext"><span>"Why?" demanded the other.</span></p>
-<p class="pnext"><span>"Rest content, Sharpe," said Keane.
-"To-day we have discovered the aerodrome;
-to-morrow we will capture it."</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="the-devil-s-workshop"><span class="bold large">CHAPTER XIX</span></p>
-<p class="center pnext"><span class="bold medium">THE DEVIL'S WORKSHOP</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>Patiently, now, the two Englishmen waited
-for the dawn. Till then it would not be
-safe to move in any direction. As they lay
-in the long bracken and ferns, however,
-they were able to converse quietly, and to
-discuss their plans for the coming day. The
-spot they had come so far to seek was now
-before them. The live wires, just a few feet
-ahead of them, had been duly located, and
-now that the danger was known, it was not
-insuperable. It was an added mystery to
-them, nevertheless, how this wizard secured
-sufficient voltage to make these wires so
-deadly. They assumed, however, that
-powerful dynamos, worked by this same silent
-energy that propelled the aeroplane, were
-at work somewhere near this spot.</span></p>
-<p class="pnext"><span>Dawn came at last; a faint yellow streak
-lit up the horizon away to the east. Then
-a crimson flush revealed the distant
-tree-tops, and the moon and stars faded away.
-A hundred songsters awoke the stillness of the
-forest, for another day had dawned, and the
-sable curtain of night rolled westward.</span></p>
-<p class="pnext"><span>"See, there is a clearing fifty yards ahead,"
-were Keane's first words to his companion.</span></p>
-<p class="pnext"><span>"It is the aerodrome, the secret aerodrome!"
-replied Sharpe, peering through the trees.</span></p>
-<p class="pnext"><span>"Let us work round a little way and find
-the workshop or hangar. I fancy we shall
-find it on the other side of the glade."</span></p>
-<p class="pnext"><span>"Mind those beastly wires, then!" replied
-Sharpe, as he began to crawl through the
-dense undergrowth after his companion, who
-had already started to make a circuit of the
-outer defences on his hands and knees.</span></p>
-<p class="pnext"><span>The next half-hour was spent in cautious
-creeping and crawling just outside those
-death-dealing wires. At the end of that
-time, however, Keane made a discovery.
-He had completed about half the circuit,
-when, peering carefully through the trees,
-he fancied he could make out the camouflaged
-fabric which covered some temporary
-building. So carefully was this place hidden
-amongst the trees that he had to look twice
-or three times before he could make up his
-mind that he was not mistaken. At last he
-convinced himself that he had located the
-workshop, else, why should the place have
-been so carefully hidden. Waiting for his
-companion to reach him, he pointed to the
-object and whispered, "There it is, not
-thirty yards away!"</span></p>
-<p class="pnext"><span>"Shall we get over these wires, and rush
-the place?" asked Sharpe.</span></p>
-<p class="pnext"><span>"No. Let us continue our journey until
-we have completed the circuit. We may
-make another discovery yet. Come along;
-fortune favours the brave."</span></p>
-<p class="pnext"><span>They had scarcely crept another hundred
-yards, however, when a rustling in the leaves,
-accompanied by a snort, revealed the presence
-of another wild boar, which had evidently
-scented their presence.</span></p>
-<p class="pnext"><span>"Confound the pig!" muttered Sharpe,
-who was afraid the sounds might lead to their
-premature discovery. But Keane thought
-otherwise, for, to his quick mind and instructive
-genius, this trifling event seemed providential.</span></p>
-<p class="pnext"><span>"The pig!" he whispered, pointing to
-the spot whence came the occasional snorts
-of the angry, disturbed creature.</span></p>
-<p class="pnext"><span>"What of it?" queried Sharpe.</span></p>
-<p class="pnext"><span>"Let's get to the other side of the beast
-and drive it against the wires."</span></p>
-<p class="pnext"><span>"And roast the brute alive for the benefit
-of their breakfast, I suppose."</span></p>
-<p class="pnext"><span>Keane laughed silently, and wondered how
-far the conspirators used this live wire to
-keep themselves supplied with food. He
-knew, however, that a wild boar on the
-live wires would soon bring out the inmates
-of that mysterious house in the woods, and
-would sufficiently distract their attention to
-give the airmen their opportunity.</span></p>
-<p class="pnext"><span>The next moment, having made a sufficiently
-extensive circuit, so as to get the
-wild boar between them and the wires,
-they began closing in on the beast, an
-operation not devoid of peril, should the boar
-decide to attack them. Fortune favoured
-them, however. The angry beast, noting
-the approach of some unseen enemy, by the
-movements of the tangled undergrowth, half
-frightened and half infuriated, made off
-in the direction of the clearing, uttering
-further snorts. The next moment he had
-touched the first of those deadly wires, and,
-with a wild scream which rang through the
-forest, he leapt into the air, then fell back
-quivering but dead across that fatal grill.</span></p>
-<p class="pnext"><span>"Back--back for your life!" hissed Keane,
-as he made haste back to the spot where
-they had sheltered, close to the camouflaged
-hangar.</span></p>
-<p class="pnext"><span>The next instant the watchers saw the
-professor and his assistant rush out of the
-little building, towards the place where the
-animal lay right across the first four wires.
-In their excitement they both seemed to
-have forgotten the presence of the two
-Englishmen in the woods during the previous
-evening, for they were both unarmed. Or
-perhaps it was that they imagined them to be
-the present victims of their cunning.</span></p>
-<p class="pnext"><span>"Hoch! Another royal boar for the larder,
-Fritz!" exclaimed the professor. "We shall
-have the winter's supply complete very soon."</span></p>
-<p class="pnext"><span>"Gut, mein herr!" came the answer.</span></p>
-<p class="pnext"><span>"Better go back and switch off the current,
-so that we can take it away," urged the chief,
-and, staying but a second to see the royal
-victim, the assistant complied.</span></p>
-<p class="pnext"><span>This was what the two Englishmen had
-been waiting for. The moment of action
-had come at last. Gripping their pistols, they
-made ready to advance and take possession
-of the hangar during the absence of the inmates.</span></p>
-<p class="pnext"><span>"Sind Sie fertig, Friedrich?" called the
-professor.</span></p>
-<p class="pnext"><span>"Ja, das bin ich!" replied the other, as
-he left the workshop, and rejoined his companion.</span></p>
-<p class="pnext"><span>"Come along, the wires are dead now,"
-whispered Keane, and, keeping well within
-the shadows of the trees, the two men crept
-forward, gained the rear of the structure,
-then cautiously worked their way round and
-entered the hangar unobserved.</span></p>
-<p class="pnext"><span>One glance about the well-fitted
-workshop sufficed. There were no further
-occupants, and they lowered their pistols. Sharpe
-at once sprang to the lever which regulated
-the powerful electrical current and clutched
-it. In another instant the two men without
-would have paid the extreme penalty, for
-they would have been instantly killed by
-their own evil device, but Keane stopped him:--</span></p>
-<p class="pnext"><span>"Don't!" he said. "We have much to
-learn. The professor at least must be taken
-alive, if possible. The secret he holds is
-too precious to be lost. Let us hide!"</span></p>
-<p class="pnext"><span>"Where can we hide?" asked the other,
-somewhat disappointed, and amazed at the
-further risks which his companion appeared
-willing to take in order to gratify an insatiable
-curiosity. "The tables may be quickly
-turned upon us."</span></p>
-<p class="pnext"><span>"We can shoot them as a last resort, if
-that is necessary," urged Keane, who knew
-the priceless value of the secrets which this
-place contained.</span></p>
-<p class="pnext"><span>"Hist! They are coming."</span></p>
-<p class="pnext"><span>"This way!" whispered Keane, and he
-drew his companion into a little recess, which
-had evidently been curtained off for the
-mechanic's sleeping berth.</span></p>
-<p class="pnext"><span>They had barely withdrawn themselves
-into this narrow apartment when the two
-men entered, dragging the carcase of the
-wild boar with them.</span></p>
-<p class="pnext"><span>"Leave it there for a moment, Strauss.
-The message from the Rittmeister is due.
-I must also send him that other message
-again, as the first has not been acknowledged,"
-were the professor's first words.</span></p>
-<p class="pnext"><span>"Yes, sir. Shall I start the dynamos
-again?" asked the assistant.</span></p>
-<p class="pnext"><span>"Perhaps you'd better, but first hand me
-that message book and the secret code."</span></p>
-<p class="pnext"><span>The next moment the professor was busy
-at the wireless keys, transmitting some
-message to the far deserts of Arabia.</span></p>
-<p class="pnext"><span>"By all the saints," gasped Keane, "he's
-sending a message to the raider, the </span><em class="italics">Scorpion</em><span>,
-as he calls it. I must have that secret
-code at all hazards. I wonder what he is saying?"</span></p>
-<p class="pnext"><span>For some time the chief conspirator was
-engaged coding and decoding messages at
-the little table where the aerials, carefully
-hidden amongst the trees without, had their
-terminus. And in that moment Keane
-thanked his stars that he had waited for
-this, for he saw new possibilities opening out
-before him. Once in possession of this
-mechanism and the necessary codes, he could
-communicate at will with the distant raider,
-who was threatening the whole civilised world
-by his almost superhuman powers of brigandage.
-He could recall the raider also, and
-make his capture certain, once he could secure
-absolute possession of this little citadel.</span></p>
-<p class="pnext"><span>For the present he could do nothing but
-wait, however, and see how matters developed.
-Once, the assistant came quite close to their
-hiding-place, and both men again gripped their
-Webleys. At this moment even to breathe
-seemed fraught with danger. If the man
-should enter the little apartment, he must die,
-and the professor must be immediately threatened
-with the same penalty unless he surrendered.</span></p>
-<p class="pnext"><span>"Ha! So far so good!" gasped Keane,
-as the mechanic recrossed the workshop
-without actually entering their hiding-place.</span></p>
-<p class="pnext"><span>"Teufel!" spluttered the professor. "Here
-is that fool Tempest trying to communicate
-with those two </span><em class="italics">verdammt</em><span> Englishmen who
-are still roaming about in the Schwarzwald.
-He little knows that we possess his secret code."</span></p>
-<p class="pnext"><span>"Himmel! What does he say?" asked the other.</span></p>
-<p class="pnext"><span>"Wants them to report progress at once,
-and let him know how matters stand," said
-Weissmann in a mocking tone. "He says he
-will come over himself, if necessary."</span></p>
-<p class="pnext"><span>"Donnerwetter! Ask him to come,
-Professor. He might as well grill with his
-accomplices on the live wires, for that's where
-they'll be before the day is out, unless they
-abandon their futile search," replied Strauss.</span></p>
-<p class="pnext"><span>"This fiend is a perfect wizard!" thought
-Keane, and his glance signified as much to
-Sharpe. "How he manages to get hold of
-these secrets is beyond me. And yet, there
-is a defect in his mad science, for he does
-not know that we're here, and that his own life
-is in our hands. Fool that he is, he will soon
-learn that the wit of an Englishman is more
-than a match for his boasted knowledge,"
-and here the senior airman carefully withdrew
-a cartridge from his Webley and inserted
-another, silently--a cartridge that had a
-specific mission. His companion watched
-him and repeated the action with his own
-weapon, for he understood.</span></p>
-<p class="pnext"><span>"Blitz! but I've half a mind to send for
-Tempest," mused the professor, who was still
-toying with the keys of the wireless instrument.</span></p>
-<p class="pnext"><span>"Send for him, Professor," urged his
-accomplice. "Those Englishmen are getting
-too close to be pleasant. The British army
-of occupation will be carrying out a thorough
-search of the Schwarzwald if these men get
-away, and then where shall we be?"</span></p>
-<p class="pnext"><span>"We are in the neutral zone, though,"
-replied the other.</span></p>
-<p class="pnext"><span>"But we're contravening the Peace Regulations,
-sir, and the English will not stand
-upon ceremony. It will be too late should
-these men get away."</span></p>
-<p class="pnext"><span>"Donner und Teufel!" rasped out the
-angry professor. "Don't speak to me of the
-Peace Regulations. There will be no peace
-till Germany regains all and more than all
-she has lost. I will send for this Commissioner
-of Aerial Police, for I believe that he
-and his two accomplices, Keane and Sharpe,
-are the only ones so far who know anything
-that matters about the secret of the
-Schwarzwald," and he began to tap the keys, reeling
-out the words as he sent them.</span></p>
-<p class="pnext"><span>Keane listened acutely for the cyphers of
-the code. They were:--</span></p>
-<p class="pnext"><span>"Z--X--B--T--V--O--P..."</span></p>
-<p class="pnext"><span>and he understood that Tempest was to come
-at once, make for Mulhausen aerodrome,
-then take a bee-line, east-north-east over the
-Schwarzwald until he saw a smoke column,
-where a suitable landing-ground would be
-found, and his accomplices would await him.</span></p>
-<p class="pnext"><span>"Ach!" shrieked the professor, with a
-fiendish laugh. "The smoke column will
-mark his last resting-place. They shall all
-be buried together, these mad Englishmen.
-We will have more live wires stretched across
-his landing-ground, and as the wild boar died,
-so will these men die who dared to follow me
-into the Schwarzwald."</span></p>
-<p class="pnext"><span>"The wild boar! Hoch! Hoch!" exclaimed
-his companion. "It is a fitting
-tribute for the English are swine!"</span></p>
-<p class="pnext"><span>"And the </span><em class="italics">Scorpion</em><span> shall witness the
-inglorious end of these men," cried the
-professor, as a sudden idea came into his mind.</span></p>
-<p class="pnext"><span>"Der </span><em class="italics">Scorpion</em><span>?" queried Fritz, looking
-up amazed from his task. "What do you
-mean, Professor?"</span></p>
-<p class="pnext"><span>"Why, the Rittmeister will have finished
-his work in the Hamadian Desert this
-afternoon. His instructions are to resign the
-Sultanate of those regions for the present,
-for the skies will be thick with British scouts
-by to-morrow."</span></p>
-<p class="pnext"><span>"But then he goes to Ireland to work with
-the revolutionists there, does he not, mein herr?"</span></p>
-<p class="pnext"><span>"Ja! ja! but I will ask him to call here
-for a day or two before he proceeds. He
-will have much to tell us, and Spitzer, Carl
-and Max would like to see these dangerous
-opponents safely out of the way, for at present
-they are the only enemies to be considered."</span></p>
-<p class="pnext"><span>"Gut!" ejaculated Strauss, catching
-something of the professor's enthusiasm.</span></p>
-<p class="pnext"><span>Keane would have intervened before this,
-for he had noted Sharpe's impatience, but
-he intimated as well as he could by mute signs
-and otherwise, that the fiend was doing their
-work for them.</span></p>
-<p class="pnext"><span>"Let him send this message first," he whispered
-in his companion's ears, "and then----" But
-the sentence was completed by further
-cabalistic signs.</span></p>
-<p class="pnext"><span>Again the professor turned to the keys, and
-sent his last instructions through the ether
-waves to his confederate, the brigand of the
-eastern skies.</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="hands-up"><span class="bold large">CHAPTER XX</span></p>
-<p class="center pnext"><span class="bold medium">"HANDS UP!"</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>"Haende in die hohe!" cried Keane as soon
-as the last message had been sent.</span></p>
-<p class="pnext"><span>"Der Teufel!" gasped the professor as
-two swift shadows darted out from behind
-the curtain, and the two men whom he had
-just been discussing with such utter contempt
-confronted him and his accomplice with
-gleaming pistols.</span></p>
-<p class="pnext"><span>"Hands up!" repeated Keane, anxious
-to give the professor another chance.</span></p>
-<p class="pnext"><span>With a blasphemous oath the man of
-evil genius, who saw that he had been
-outwitted, reached for a small hand grenade
-which lay beside him on the table, and
-shouted:--</span></p>
-<p class="pnext"><span>"Never!"</span></p>
-<p class="pnext"><span>"Then take that!" cried the Englishman,
-and two puffs of greenish smoke, following a
-sharp crackle, burst simultaneously from the
-pistols, for they had both fired together.</span></p>
-<p class="pnext"><span>The new Asphixor bullets took immediate
-effect. Both the Germans staggered, clutched
-their throats as though to ward off the effects
-of this new powerful gas recently discovered
-and adapted by that eminent British scientist,
-Sir Joseph Verne--then lurched and fell,
-whilst their opponents stepped back and
-quickly fitted on their safety masks.</span></p>
-<p class="pnext"><span>"They are both sound asleep," observed
-Keane, when, the fumes having cleared away,
-he threw aside his respirator and carefully
-examined the unconscious men.</span></p>
-<p class="pnext"><span>"Let them sleep," said Sharpe, who would
-have adopted even more drastic measures
-if he could have had his own way. "'Tis
-scant mercy they would have shown to us if
-we had been in their power."</span></p>
-<p class="pnext"><span>"And now let us get to work, for they will
-awaken in seven or eight hours, and we
-have much to do. We must prepare for
-Colonel Tempest, and also for this raider,"
-urged Keane.</span></p>
-<p class="pnext"><span>"But they will not come to-day, Captain."</span></p>
-<p class="pnext"><span>"Scarcely, but we must be prepared for
-anything. There are only a couple of us."</span></p>
-<p class="pnext"><span>"Shall we secure these men, in case they
-awake earlier than the stipulated time?"</span></p>
-<p class="pnext"><span>"No, let us remove their slumbering forms
-behind the curtain there; we will attend to
-them before they awake. I do not like the
-idea of strapping down unconscious men,
-even though they are criminals. We will
-watch them from time to time."</span></p>
-<p class="pnext"><span>Then for the next half-hour they carried
-out a careful examination of the hangar and
-its contents. They were amazed at the
-intricate and wonderful mechanism with
-which the place was fitted. It seemed
-impossible that these things could have been
-transported hither without attracting
-attention. Parts of aeroplane wings, struts,
-propellers, engine-fittings, strange, weird-looking
-cylinders, retorts, analytical appliances,
-instruments and vessels for chemical research,
-powerful but silent dynamos, and numberless
-other things, all neatly arranged, and
-apparently in working order, half filled the place.</span></p>
-<p class="pnext"><span>The further they carried their investigation
-the more were these two Englishmen
-bewildered by what they saw.</span></p>
-<p class="pnext"><span>"Is it possible," gasped Keane, "or am I
-only dreaming? We have discovered the
-home of the super-alchemist. After this,
-nothing will surprise me."</span></p>
-<p class="pnext"><span>"We have discovered the devil's workshop,"
-replied Sharpe, who did not appear to
-be half so enraptured as his friend.</span></p>
-<p class="pnext"><span>"Nay, we shall find the philosopher's stone,
-or the </span><em class="italics">elixir vitae</em><span> soon," replied Keane,
-continuing his investigation.</span></p>
-<p class="pnext"><span>"We are more likely to find the </span><em class="italics">elixir
-mortis</em><span> than anything else," said the gloomy
-one. "This place gives me the shivers. I
-am sure that I shall have cold feet for the rest
-of my life."</span></p>
-<p class="pnext"><span>"After this, Hermes and Geber will be dull
-reading," continued the enthusiast. "Give
-me the Schwarzwald every time for the real
-thrill of the alchemist."</span></p>
-<p class="pnext"><span>"Their time might have been more
-profitably employed, at any rate," remarked
-Sharpe.</span></p>
-<p class="pnext"><span>"Yes, it is a thousand pities that the
-wonderful brain which designed and organised
-all this should have had nothing better in
-view than brigandage and world revolution."</span></p>
-<p class="pnext"><span>"More misdirected energy," moaned
-Sharpe; "the greatest brains often make the
-greatest criminals."</span></p>
-<p class="pnext"><span>"You're a veritable misanthrope, Sharpe!"
-said his companion, laughing.</span></p>
-<p class="pnext"><span>"I have reason to be," returned the other.</span></p>
-<p class="pnext"><span>"What do you mean?"</span></p>
-<p class="pnext"><span>"I mean this--we're not out of the wood yet."</span></p>
-<p class="pnext"><span>"I agree; we're in the very centre of it,"
-replied Keane.</span></p>
-<p class="pnext"><span>"Yet you did not inflict the </span><em class="italics">coup de grâce</em><span>
-on the diabolical vipers, and they will shortly
-awake. Moreover, the </span><em class="italics">Scorpion</em><span> may arrive
-unexpectedly, and we shall be unprepared for her."</span></p>
-<p class="pnext"><span>"What would you do?"</span></p>
-<p class="pnext"><span>"Bring over the machines from Mulhausen,
-ready to fight this air fiend when he comes."</span></p>
-<p class="pnext"><span>"Ho! So you're longing for another real
-air fight, are you, like the 'scraps' we used
-to have with the Richthofen 'circus'?"</span></p>
-<p class="pnext"><span>"At any rate, we'd better prepare. Then
-I'd bind those two criminals hand and foot or
-surround them with live wires, so that, should
-they awake unexpectedly, they would not
-dare to stir."</span></p>
-<p class="pnext"><span>"There is certainly something in what you
-suggest about bringing the aeroplanes over,
-though we should have a deuce of a job to
-land them in this place; they're by no means
-possessed of the powers of a helicopter.
-However, I'll get into touch with Colonel
-Tempest and ask for immediate assistance,
-and also ask him to bring over Professor
-Verne to investigate these mysterious
-engineering and chemical appliances."</span></p>
-<p class="pnext"><span>So, leaving the workshop, the live wires and
-the prisoners to the care of Sharpe, the senior
-airman devoted all the rest of that morning to
-investigating the wireless apparatus,
-examining the secret codes, and trying to get into
-touch with the Commissioner of Aerial Police.
-In this, however, he was not very successful,
-for the air was full of messages,
-concerning an overdue air-liner which had been
-expected for some time at Cairo. Perhaps
-his message had been jammed or lost in the
-aerial jostle.</span></p>
-<p class="pnext"><span>Colonel Tempest was almost at his wits' end.
-He sorely needed the help of his able
-assistants. He wanted to send them out east to
-chase this daring brigand off the trade routes.</span></p>
-<p class="pnext"><span>He was unable also to comply with the
-request for assistance, when at length it did
-reach him, for all his best fighting men, with
-the exception of these two in the Black Forest,
-had been sent after the raider. He promised,
-however, to come personally at the earliest
-possible moment, as soon as matters had been
-cleared up a little.</span></p>
-<p class="pnext"><span>Again and again Keane tried to reach him
-with brief, but urgent coded messages,
-for he was now getting extremely anxious
-lest the raider should appear before they
-were ready. Sharpe, however, who was
-eminently practical, had taken the
-professor's own tip, and had laid wires
-across the glade, which, when properly
-connected up, would make it a dangerous
-proceeding for a hostile aeroplane to land there,
-while, in the event of a friendly one appearing,
-the current could be immediately switched
-off. He had seen to the prisoners as well,
-for, unknown to Keane, he had, on the first
-signs of awakening, given to each of them a
-sufficiently strong soporific to extend the
-period of their quiescence for a considerably
-longer period, so that, late that afternoon, his
-friend was somewhat alarmed at their quietude.</span></p>
-<p class="pnext"><span>That night they watched in turns, and
-relieved each other every two hours. When
-morning came they climbed the highest trees
-and scanned the horizon in every direction
-for the promised help, and also for the
-</span><em class="italics">Scorpion</em><span>. But although the column of smoke
-from the fire which had been lighted, ascended
-all day in one long grey streak to guide the
-British airmen, yet morning wore on to
-afternoon, and no assistance came.</span></p>
-<p class="pnext"><span>Keane sent message after message, but
-apparently to no purpose. The very heavens
-were full of messages, for the whole civilized
-world had been roused by the last daring
-feat of the phantom airman. London, Paris,
-Cairo, Delhi and New York were clamouring
-for his immediate capture and execution.
-Strong things, too, were being said about
-the incapacity of the much vaunted aerial
-police, but all the world realised that the task
-before these men was almost superhuman.</span></p>
-<p class="pnext"><span>Twice an urgent message came recalling the
-two Englishmen, but Keane replied with the
-one word, "Impossible!"</span></p>
-<p class="pnext"><span>And all this time the raider, who was
-carefully hiding for a few days, delighted his
-companions by retailing with much gusto
-such of these messages as he had been able to
-piece together from the aerial jumble.</span></p>
-<p class="pnext"><span>"Let them send all their available machines
-and pilots out east," he had said to Carl and
-Max, "then we will quietly slip across
-Europe to Ireland, where everything is ripe
-for the promised revolution."</span></p>
-<p class="pnext"><span>"And the Schwarzwald?" queried Max.</span></p>
-<p class="pnext"><span>"Oh, we will call there for a few hours en
-route," replied the pirate, calmly relighting
-his pipe, "The professor will understand our
-silence and inactivity."</span></p>
-<p class="pnext"><span>So the third morning came, and Keane,
-whose anxiety regarding the still sleeping
-prisoners had been allayed by Sharpe, who
-smilingly confessed what he had done, now
-became fearfully uneasy as to the condition
-of affairs.</span></p>
-<p class="pnext"><span>"For heaven's sake light that beacon
-again!" he ordered. "If assistance does
-not arrive to-day, all these secrets I have
-endeavoured to rescue will be lost."</span></p>
-<p class="pnext"><span>"What will you do?" asked his companion,
-who was already applying a match to the
-pile of dried tinder and sticks.</span></p>
-<p class="pnext"><span>"Blow the whole place up," he replied.</span></p>
-<p class="pnext"><span>"And shoot the prisoners?" ventured his
-friend, slyly.</span></p>
-<p class="pnext"><span>"No."</span></p>
-<p class="pnext"><span>"What then?"</span></p>
-<p class="pnext"><span>"Rouse them up, somehow, handcuff them
-together and take them away."</span></p>
-<p class="pnext"><span>"Some job that," remarked Sharpe, looking
-up at the long thin trail of smoke, for there
-was still an absence of wind currents.</span></p>
-<p class="pnext"><span>Even as he gazed into the sky, however, he
-caught sight of a tiny speck hovering at
-twelve thousand feet, and he almost shouted,
-"Aeroplane!"</span></p>
-<p class="pnext"><span>"Where?" asked his startled comrade,
-whose nerves had undergone some strain
-during the past few days.</span></p>
-<p class="pnext"><span>"Right up in the blue. There, can you see her?"</span></p>
-<p class="pnext"><span>"Yes, I have her now, but she's very high.
-Can it be the </span><em class="italics">Scorpion</em><span>, do you think?" asked
-the senior.</span></p>
-<p class="pnext"><span>"Cannot say yet. I'll fetch the glasses."</span></p>
-<p class="pnext"><span>"Run for them, quickly! I cannot hear
-her engines at all. It must be the brigand."</span></p>
-<p class="pnext"><span>"Ah, there, I hear the engines now, very
-faintly, though. Rolls-Royce engines too,
-thank God!" exclaimed Keane fervently, as
-he recognised the well-known sound, and
-knew that assistance had arrived at last, in
-the shape of at least one Bristol Fighter.</span></p>
-<p class="pnext"><span>"It's all right, Sharpe. Cut off that
-beastly current. Tempest will be here in a
-minute."</span></p>
-<p class="pnext"><span>"Are you sure it's Tempest?"</span></p>
-<p class="pnext"><span>"Yes. Listen to that! Now he's cut his
-engine out again, and he's coming down. It's
-the chief right enough; I should know his
-flying amongst a score of aeroplanes."</span></p>
-<p class="pnext"><span>The wires were cut off, a temporary landing-tee
-quickly rigged up on the ground, and
-frantic signals were made to the pilot, who
-was now rapidly coming down in sharp spirals.</span></p>
-<p class="pnext"><span>A few minutes later the intrepid pilot
-flattened out above the tree tops, dipped
-again, banked steeply, and sideslipped almost
-to the ground, in order to get into the
-confined and narrow space which served the
-</span><em class="italics">Scorpion</em><span> for an aerodrome. Scarcely had he
-landed when another machine, which had
-followed him from England, performed the
-same highly-skilled manoeuvre, and taxied up
-to the little group.</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="the-coming-fight"><span class="bold large">CHAPTER XXI</span></p>
-<p class="center pnext"><span class="bold medium">THE COMING FIGHT</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>"Good-morning, Colonel!" cried the two
-airmen, saluting their chief smartly, as he
-still sat in the aeroplane, looking not a little
-crabbed and sour, as he secretly swore at the
-infamous stretch of ground misnamed an
-aerodrome; then turned his gaze upon the
-two airmen who had appealed for assistance.</span></p>
-<p class="pnext"><span>"Morning! So this is where you young
-cubs spend your holidays, while the whole
-world is ramping at me for not catching this
-infernal brigand. What have you got to say
-for yourselves?"</span></p>
-<p class="pnext"><span>Keane was not at all put out by this dour
-greeting; he knew his chief too well, and
-admired him accordingly. Merit is not always
-accompanied by a bland and urbane countenance,
-neither do brains always accompany
-a white shirt front.</span></p>
-<p class="pnext"><span>"I have that to say which will almost make
-you jump out of your skin, sir," replied
-Keane, "but we must somehow get these
-aeroplanes under cover, or properly
-camouflaged, for the </span><em class="italics">Scorpion</em><span> may arrive any
-minute."</span></p>
-<p class="pnext"><span>"Eh? What's that you say, boy?"
-exclaimed Tempest, leaping from the fuselage.
-"The </span><em class="italics">Scorpion</em><span>?"</span></p>
-<p class="pnext"><span>"Yes, sir."</span></p>
-<p class="pnext"><span>"Why, that is the name of your infernal
-raider, isn't it, Captain Watson?" and here
-the colonel turned and addressed his passenger,
-who was none other than the skipper of the
-air-liner which had been so roughly handled
-in the Hamadian Desert.</span></p>
-<p class="pnext"><span>"The same, sir."</span></p>
-<p class="pnext"><span>"And the professor, Keane? I sent you
-to track the professor. Have you found him?"</span></p>
-<p class="pnext"><span>"He is our prisoner, Colonel," and Keane
-bowed stiffly, and pointed to the half-hidden
-hangar, where the two prisoners, who were now
-partly roused, had been safely secured.</span></p>
-<p class="pnext"><span>An exclamation of pleasure and surprise
-broke from this dour-looking man when he
-heard this news, and his face became wreathed
-with smiles as he advanced to both Keane
-and Sharpe, shook them warmly by the hand,
-and said:--</span></p>
-<p class="pnext"><span>"Thank you, my boys; I knew if it could
-be done you would do it, though I could ill
-spare you for the job. Yesterday my
-reputation was in shreds; I am to be charged with
-inefficiency, and a public enquiry is to be held.
-But you two wolf cubs have re-established my
-character; I can never thank you enough.
-Now lead on, show us this evil-minded
-genius! Professor Verne here, who has come
-in the second Bristol, with Captain Hooper, is
-anxious to see him. He may redeem him yet
-from the error of his ways, and it is vital that
-this secret of his should be in other and better
-hands, else it will always be a danger to the public."</span></p>
-<p class="pnext"><span>So, whilst the party were conducted
-indoors, and shown the marvels of the modern
-house of alchemy, the two professors were
-introduced, and began a series of disputations,
-very embittered at first, as the German,
-though relieved of his bonds, and made
-as comfortable as the circumstances would
-permit, resolutely refused to give any
-particulars of his discovery, or even to display
-the slightest amiability towards his
-distinguished visitor, though they were not
-unknown to each other, and had even studied
-at Heidelberg together in their younger days.</span></p>
-<p class="pnext"><span>Meanwhile, all possible steps were taken to
-prepare for the possible arrival of the </span><em class="italics">Scorpion</em><span>.
-The Bristol machines, after being carefully
-stowed away in a gap between the trees, were
-so camouflaged by branches of pine and larch
-that they presented but a very indistinct
-object from the air, and, unless their presence
-were known, might easily remain unobserved.</span></p>
-<p class="pnext"><span>After some time had been spent in
-examining the highly developed and intricate
-mechanism of the devil's workshop, as the
-place was now called, the Commissioner
-suddenly turned upon his chief mentor, and
-said:--</span></p>
-<p class="pnext"><span>"By the way, Keane, have you discovered
-any drawings or designs of this wonderful
-aeroplane? I don't see any amongst this
-pile of papers, and the professor does not
-seem inclined to help us at all."</span></p>
-<p class="pnext"><span>"No, sir. We have searched the place
-carefully, but we have found nothing. Part of
-the machine could certainly be reconstructed
-from those spares, but all the important parts
-are missing. I have an overwhelming curiosity
-to see the machine, though, and hope that I
-may not have this pleasure much longer delayed."</span></p>
-<p class="pnext"><span>"Then we have nothing but these photographs,"
-returned the captain.</span></p>
-<p class="pnext"><span>"Photographs?" echoed Keane.</span></p>
-<p class="pnext"><span>"Yes. Why, I forgot to tell you in the
-bewilderment and excitement of the last
-hour, that Captain Watson here managed to
-secure three snapshots of the raider in
-mid-air, whilst his airship was being attacked."</span></p>
-<p class="pnext"><span>"It was the boy Gadget who secured them,
-sir," interposed the air-skipper, anxious to
-give credit where credit was due.</span></p>
-<p class="pnext"><span>"Oh, yes, Keane, I ought to say that it
-was a smart little beggar called Gadget, a
-stowaway, who really secured the photographs,
-and hid them away from the brigand.
-We must see that the little chap is properly
-rewarded when we return."</span></p>
-<p class="pnext"><span>"Let me see the pictures, sir," requested
-Keane, eager to get some idea of his future
-opponent.</span></p>
-<p class="pnext"><span>"Here they are. I have had them developed
-and enlarged. They should be extremely
-useful to us, as we shall shortly have to encounter
-this Sultan Selim, Air King of the Hamadian
-Desert, the world's greatest bandit, who had
-the audacity to send me this document by the
-captain."</span></p>
-<p class="pnext"><span>And here the colonel, having retailed the
-whole story of the fight in the desert, showed
-the brigand's letter, which had been brought to
-London the previous day by the fast aeroplane
-which had carried the skipper of the air-liner.</span></p>
-<p class="pnext"><span>Keane turned in amazement from the clear
-photographs of the phantom-bird to the brief,
-audacious letter of the phantom airman, and
-read as follows:--</span></p>
-<p class="pnext"><span>"To Colonel Tempest, D.S.O., M.C.,</span></p>
-<p class="pnext"><span>Commissioner of Aerial Police, Scotland
-Yard, London, W.C.</span></p>
-<p class="pnext"><span>"Greetings from Sultan Selim, Air King
-of the Hamadian Desert. I regret to inform
-you that of late there has been a serious
-increase of aerial crime in these regions.
-The frequent passing of large airships
-containing mails and other commodities, without
-due payment of tribute to my customs
-officials, is a serious infringement of the
-laws of my dominion. This action not only
-imperils the liberties of small communities,
-but is also a crafty form of aerial brigandage,
-inasmuch as it defrauds my exchequer of its
-just and equitable revenue. This practice
-must cease forthwith, and I have taken
-steps to-day which, in my opinion, will render
-it unwise for this shameful trespass to
-continue. The bearer of this letter will give
-you further details of the action which I
-have been compelled to take on behalf of my
-subjects. Your five missing scouts will be
-found between the wells of Nefud and the
-Hedjaz coast. I have destroyed their machines
-as a salutary warning to future violaters of
-these my dominions."</span></p>
-<p class="pnext"><span>Keane could scarcely restrain a smile when
-he laid down this wily, half-humorous,
-half-threatening epistolary from the aerial pirate.</span></p>
-<p class="pnext"><span>"What do you think of it?" asked the colonel.</span></p>
-<p class="pnext"><span>"It's a topping letter, sir, but I think he's
-trying hard to be funny, this von Spitzer, as
-you call him. A German with a sense of
-humour, sir, that's the best way to regard
-him," replied the airman.</span></p>
-<p class="pnext"><span>"Humour indeed!" rasped out the
-colonel, becoming ruffled. "It's confounded
-impudence, and worse, when you remember
-that, apart from the damage to the airship,
-which is considerable, there is a net loss of
-specie and other valuables--to wit, the
-Maharajah's jewels--which is estimated at a
-quarter of a million sterling. I only hope and
-pray that we may encounter and waylay this
-bandit before he does any more damage. The
-deuce only knows what he'll do next, or where
-he'll go."</span></p>
-<p class="pnext"><span>"Ireland is to be the scene of his next
-adventure, sir," remarked Keane.</span></p>
-<p class="pnext"><span>"Ireland?"</span></p>
-<p class="pnext"><span>"Yes, sir."</span></p>
-<p class="pnext"><span>"Are you sure?"</span></p>
-<p class="pnext"><span>"I heard the professor say so. They are
-to work hand in hand with the revolutionists
-there, and stir up strife which will make that
-unhappy land a still greater thorn in the side
-of Great Britain."</span></p>
-<p class="pnext"><span>"Just what I feared!" exclaimed the now
-irate commissioner. "That explains partly
-those mysterious messages and rumours
-floating about Dingle Bay, and unfortunately I
-have had to withdraw nearly all the aerial
-police from that quarter to send them out east."</span></p>
-<p class="pnext"><span>"You might as well recall them, sir."</span></p>
-<p class="pnext"><span>"Why?"</span></p>
-<p class="pnext"><span>"The raider has left the Hamadian
-Desert by this time, and is in hiding
-somewhere, but will call here on his way to
-Ireland."</span></p>
-<p class="pnext"><span>"H'm! We're being thoroughly fooled,
-and if you hadn't found this demon's nest I
-should have gone mad. At any rate I
-should have been compelled to resign my post."</span></p>
-<p class="pnext"><span>"Still, public opinion had to be satisfied,
-and you sent the patrols where the public
-demanded that they should be sent. Besides,
-if you recall them now, this raider will
-probably pick up your messages and change
-his tactics. I can tell you this, Colonel, that
-while he can get his necessary supplies of
-uranis, and a few extra spares from the
-workshop here, this von Spitzer intends to
-carry out his mad policy of destroying the
-civilized world by piecemeal. It is all part
-of a great plan to save Germany from the evil
-consequences of the Peace terms. But, whilst
-we hold this citadel, and retain these two men
-captive, his activities are limited to his
-present supply of this secret element--uranis."</span></p>
-<p class="pnext"><span>The colonel swore under his breath, and
-went to examine the prisoners, to make sure
-that there was no chance of their escaping,
-for he felt the truth of Keane's words. He
-now felt grateful that the airman had not
-responded to the message for his recall, although
-it had amounted to a serious breach of
-discipline.</span></p>
-<p class="pnext"><span>"Ah, well," he said at length, "it only
-remains to capture this raider, and the whole
-system of their clever and daring attempt
-to convulse the Allies, break up their
-international system of mail transit, stop the
-intercourse of civilized nations, and cause
-a world revolution--all these things will fail."</span></p>
-<p class="pnext"><span>So their efforts were redoubled to make
-preparations to capture the wonder 'plane,
-should it descend on the aerodrome. A
-couple of machine guns were found, and
-mounted, under the charge of Sharpe and
-Captain Hooper, though the skipper of the
-airliner pointed out that the </span><em class="italics">Scorpion</em><span> carried
-bullet-proof armour.</span></p>
-<p class="pnext"><span>"You will need to hit her in a vital
-spot," he said, "so that your first burst
-may be your last, or she will be up again like
-a helicopter."</span></p>
-<p class="pnext"><span>"Then we must have the two Bristols
-ready," urged the colonel, "though it's a
-deuce of a hole to get out of with this new
-type of a Bristol Fighter."</span></p>
-<p class="pnext"><span>"And the petrol, sir?" asked Keane, who,
-was rather anxious on this point, for he hoped
-that the </span><em class="italics">Scorpion</em><span> would become his victim in
-the coming air fight.</span></p>
-<p class="pnext"><span>"There may be sufficient for another two
-hours, certainly not more."</span></p>
-<p class="pnext"><span>"That means unless the </span><em class="italics">Scorpion</em><span> chooses
-to stay and fight, she'll simply leave us."</span></p>
-<p class="pnext"><span>"Von Spitzer will fight unless I stop him!"
-called out the professor from behind the
-curtains, where he was confined under the
-charge of his colleague of other days, for he
-had been listening to the conversation.</span></p>
-<p class="pnext"><span>"So much the better!" replied Keane, tartly.</span></p>
-<p class="pnext"><span>"And when the fight is over there won't be
-many of you left alive to tell the story," came
-the rejoinder.</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst" id="an-aerial-duel"><span class="bold large">CHAPTER XXII</span></p>
-<p class="center pnext"><span class="bold medium">AN AERIAL DUEL</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="pfirst"><span>"Message from the </span><em class="italics">Scorpion</em><span>, sir!" cried
-Keane, a little before midday, from the little
-key-board where he had been patiently
-waiting for the last hour.</span></p>
-<p class="pnext"><span>"Good! What does the brigand say?" asked Tempest.</span></p>
-<p class="pnext"><span>"Expects to be here within an hour."</span></p>
-<p class="pnext"><span>"Then we haven't a moment to lose,"
-replied the colonel. "At the same time, I
-am glad we have had this message, for to be
-forewarned is to be fore-armed."</span></p>
-<p class="pnext"><span>Then, turning to Keane, whom he knew to
-be his best and most brilliant pilot, he said,
-"Where would you like to be stationed, boy?"</span></p>
-<p class="pnext"><span>A sudden gleam came into the youth's eyes,
-for he saw that his chance had come.</span></p>
-<p class="pnext"><span>"Let me have all the spare petrol from the
-other machine, and let me get up above the
-clouds in that new No. 7 Bristol Fighter
-which you brought over, sir."</span></p>
-<p class="pnext"><span>"I'm afraid it means certain death for you,
-my lad," replied the chief, after a pause,
-unwilling to permit the youth to take such
-unknown risks, and yet still more unwilling to
-deny him his request. "This </span><em class="italics">Scorpion</em><span>,
-according to Captain Watson, must be some
-stunting machine."</span></p>
-<p class="pnext"><span>"I am willing to take the risks, sir," replied
-Keane. "It is not my first fight with a Hun."</span></p>
-<p class="pnext"><span>"Don't I know it, boy!" replied the other,
-gazing with fond admiration into the frank
-and pleasing face of the pilot. "The ribbons
-which you gained speak for themselves, but
-they don't tell half the story. Don't I
-remember the morning when you went over
-the line by yourself, and encountered seven
-enemy machines, how you fought with them
-for an hour and brought five of them down,
-chased the others till your machine threatened
-to break up, then turned and staggered home
-with your wings shot to ribbons?" and the
-colonel fondly patted the youth's shoulder.</span></p>
-<p class="pnext"><span>"Then let me go, sir. The brigand will be
-not a little confounded to find himself attacked
-both from the ground and the air at the same time."</span></p>
-<p class="pnext"><span>"You shall go!" said the colonel after
-another pause. "Will you take a gunner with you?"</span></p>
-<p class="pnext"><span>"No, sir. I would rather go alone."</span></p>
-<p class="pnext"><span>And while the petrol was drawn off from
-the other machine, No. 7 was brought out,
-filled up, and tested, ready to start at a
-moment's notice. The Vickers gun, fixed
-forward to fire through the propeller, was
-carefully examined, and several drums of the
-new armour-piercing bullets placed in position.
-Another moment was given to the alignment
-of the gun-sight, a matter of supreme importance
-in an aerial duel like this one promised to
-be, for the slightest error in this respect would
-be like courting disaster.</span></p>
-<p class="pnext"><span>Ten minutes later the signal was given to
-stand clear, the colonel himself swung the
-propeller, and, instantly, the powerful
-350 H.P. Rolls-Royce burst into life with a
-crackle and a roar, and, when the chocks were
-withdrawn, the Bristol dashed across the
-ground, leapt into the air at sixty yards, and
-by a steep climb just cleared the tops of the
-trees on the edge of the forest.</span></p>
-<p class="pnext"><span>"What are his chances, Colonel?" asked
-Captain Hooper.</span></p>
-<p class="pnext"><span>The chief shook his head as though doubtful
-of the result, then, after watching the
-machine for a moment, as it climbed in rapid
-spirals up into the clouds which half covered
-the sky at four thousand feet, he said:--</span></p>
-<p class="pnext"><span>"There is no pilot aboard the </span><em class="italics">Scorpion</em><span>, or
-any other machine for that matter, who can
-hold a candle to Keane, but--it is the amazing
-speed and climbing powers of the other
-machine that I fear. Still, it will be some
-fight, and if we fail to trap the brigand down
-here, well, it is just possible, despite his
-disadvantages, that Keane may bring the rascal
-down. He'll have to keep well out of sight,
-though, and run at less than half-throttle
-behind that cloud bank till the moment comes
-to strike. And now to stations, all of you,
-and keep well out of sight. Professor Verne,
-I am afraid you will have to take charge of
-the two prisoners. Don't let them get away
-for heaven's sake. You must shoot them first."</span></p>
-<p class="pnext"><span>"I'll take care of them, Colonel," replied
-the eminent man, "though it is a somewhat
-unusual occupation for me."</span></p>
-<p class="pnext"><span>"Needs must when the devil drives, Professor!
-I told you it would be some desperate
-adventure. Have you had any luck with
-that evil genius, yet?"</span></p>
-<p class="pnext"><span>"Not the slightest, so far. He is prejudiced
-against the English mind, and is secretly
-rejoicing over the expected arrival of the
-</span><em class="italics">Scorpion</em><span>."</span></p>
-<p class="pnext"><span>"Tell him from me, Professor, that if he
-attempts to escape, I shall shoot both him and
-his accomplice without the slightest compunction,"
-said the colonel, as he turned away to
-re-examine all his defensive posts, and to
-alter the position of one of the machine
-guns, which had been entrusted to Captain Sharpe.</span></p>
-<p class="pnext"><span>Fifteen minutes passed away, and the
-Bristol, hidden away behind the cloud bank,
-kept its engine well-throttled down, lest the
-roar of the powerful motor should reveal its
-presence, when, suddenly, from one of the
-watchers, the cry arose:--</span></p>
-<p class="pnext"><span>"Aeroplane approaching from the south-east."</span></p>
-<p class="pnext"><span>"Is it the </span><em class="italics">Scorpion</em><span>, Captain Watson?"
-the colonel asked, as soon as the machine had
-been located.</span></p>
-<p class="pnext"><span>"Yes, it is the same brigand, sir."</span></p>
-<p class="pnext"><span>Then, with amazement bordering on the
-supernatural, the little garrison saw the
-</span><em class="italics">Scorpion</em><span> moving across the sky at a miraculous
-speed, and making directly for the secret
-aerodrome. Once or twice it circled around
-at three thousand feet, then dived a clean two
-thousand five hundred upon its objective,
-silently, like a mysterious phantom bird. At five
-hundred feet it flattened out, rode gaily above
-the tree tops, then swooping like a falcon, once
-more touched the ground lightly, and came to
-rest within thirty yards of the secret hangar.</span></p>
-<p class="pnext"><span>"Haende in die hohe!" cried Colonel
-Tempest, stepping out into the open, and
-confronting the visitors with a couple of
-revolvers, as they prepared to leap from the
-armoured conning-tower.</span></p>
-<p class="pnext"><span>"Ach Himmel! We are betrayed!" cried
-Spitzer. "The </span><em class="italics">verdammt</em><span> English have
-captured the aerodrome."</span></p>
-<p class="pnext"><span>Without thought of surrender the brigands
-tumbled swiftly back into the armoured
-cell, just as a shower of bullets from both
-revolvers swept the upper surface of the cockpit.</span></p>
-<p class="pnext"><span>"Fire!" shouted Tempest, stepping back,
-as the daring bandits, regardless of the danger,
-started the propellers once more by means of
-the self-starting knob, within the conning-tower.</span></p>
-<p class="pnext"><span>And the next instant, even as the machine
-turned and raced for safety, a terrific hail of
-bullets from the two machine guns swept the
-</span><em class="italics">Scorpion</em><span> from stem to stern. One of her
-machine guns was swept from its mountings,
-and it is believed that one at least of her crew
-was wounded, probably by the Colonel's
-revolver shots, but as for surrender, the pirates
-would have none of it, as, apparently unhurt
-in any vital spot, the </span><em class="italics">Scorpion</em><span> recrossed the
-aerodrome, staggering once or twice under the
-fierce welter of bullets, managed to leave the
-ground, and sail over the tree tops out of
-immediate range.</span></p>
-<p class="pnext"><span>"Confound it! She's absolutely bullet-proof!"
-shouted the colonel, who was furious
-at his failure, for his object had been to
-capture the machine and its crew wholesale,
-because of its valuable secrets.</span></p>
-<p class="pnext"><span>"We shall see no more of her!" exclaimed
-Captain Hooper.</span></p>
-<p class="pnext"><span>"Just wait a moment," said the skipper of
-the air-liner. "She'll have something to say
-presently. You don't know these infernal
-brigands."</span></p>
-<p class="pnext"><span>The last speaker was right, for a moment
-later the infuriated Spitzer, sweeping round
-at a frightful speed, swooped down upon the
-little hangar, where he presumed the English
-were in possession, swept the place with a
-burst of machine gun fire from his remaining
-gun, then dropped a bomb filled with high
-explosive right into the middle of the structure;
-whilst he, himself, was screened by the trees
-from the enemy's fire.</span></p>
-<p class="pnext"><span>The roar of the explosion was deafening,
-and several trees in the vicinity of the
-workshop were blown to fragments, whilst the
-workshop was now a tangled mass of wreckage.
-It was also burning furiously, and a thick
-pall of dense smoke already hung over the spot.</span></p>
-<p class="pnext"><span>"The professor!--we must save him!"
-cried Tempest, who was already limping
-from a bomb splinter which had pierced
-his leg.</span></p>
-<p class="pnext"><span>Captain Watson ran to help him, but the
-two machine gunners, Sharpe and Hooper,
-stuck to their posts ready for the next attack,
-which they knew would not be long delayed,
-for Spitzer, during his last circuit, had
-marked the position of the two machine
-gun posts.</span></p>
-<p class="pnext"><span>As the rescuers hastened to the assistance
-of the prisoners, they came upon Professor
-Verne, bleeding from the hands and face,
-dragging the prostrate form of the German
-from amid the burning wreckage.</span></p>
-<p class="pnext"><span>"Ah, you are wounded?" cried the colonel.</span></p>
-<p class="pnext"><span>"It is nothing," replied the other. "See
-to the mechanic. I fear he is killed, poor
-fellow, by his own countrymen."</span></p>
-<p class="pnext"><span>It was so; his mangled form was found
-buried under the </span><em class="italics">débris</em><span> of the workshop. The
-German professor and his rescuer were both
-helped to safety; then the battle began
-again.</span></p>
-<p class="pnext"><span>"Here comes the </span><em class="italics">Scorpion</em><span>!" shouted
-Captain Watson. "Look out there!" and
-instantly the air resounded with the sharp,
-short crackle of the air brigand's gun--</span></p>
-<p class="pnext"><span>"Rep-r-r-r-r-r----!" as the raider swept the
-machine gun posts.</span></p>
-<p class="pnext"><span>At this very instant, however, the sound of
-whistling wires came suddenly from overhead,
-as something swooped down from the dizzy
-heights upon the attacker. Then the sharp
-crackle of a Vickers gun rent the air, as, in
-a headlong dive of two thousand feet, the
-Bristol Fighter hurtled down, spitting fire
-through the whirling propeller, and driving
-its quarry almost to the ground by its
-unexpected onslaught.</span></p>
-<p class="pnext"><span>By a miracle almost, the </span><em class="italics">Scorpion</em><span> escaped
-a terrible crash, flattening out within two
-feet of the ground in the middle of the glade,
-then started its upward climb to
-out-manoeuvre its new opponent, for the rest
-of this terrific combat was confined to the air.</span></p>
-<p class="pnext"><span>The little garrison below came out to see
-this thrilling spectacle, and even the wounded
-German raised himself to watch the </span><em class="italics">Scorpion</em><span>,
-as he expected, give its </span><em class="italics">coup de grâce</em><span> to its
-clumsy opponent. The fight now was for
-altitude, dead angles, and the blind side of each
-opponent, but more especially for altitude,
-for this is the equivalent in an aerial duel of
-the windward position, in the days of the old
-frigates.</span></p>
-<p class="pnext"><span>Once, after climbing on the turn, the two
-machines approached each other dead on, and
-each opened a burst of fire simultaneously on
-its opponent. Carl, the scout pilot, was
-handling the solitary gun, and, if his aim had
-been more steady, that would have marked
-the finish of the fight. On the other hand
-Keane's bullets pattered with unerring aim
-upon the armoured conning-tower, but with
-little effect, for so far the finely-tempered
-steel resisted even these armour-piercing bullets.</span></p>
-<p class="pnext"><span>The watchers down below trembled with
-rage--all save the German--when they saw
-this fearful waste of markmanship, but up
-there, calm and collected, the British pilot
-clenched his teeth and muttered:--</span></p>
-<p class="pnext"><span>"I must find his dead angle! I will
-attack him from below."</span></p>
-<p class="pnext"><span>Then followed a series of thrilling
-manoeuvres, in which the daring skill of the
-Englishman alone saved him from his too-powerful
-opponent. The </span><em class="italics">Scorpion</em><span>, using its
-superior speed, made a desperate effort to sit
-upon its opponent's tail, a deadly position if
-it could only be attained. But, looping,
-banking, sideslipping and occasionally
-spinning, the Bristol out-manoeuvred its
-enemy every time.</span></p>
-<p class="pnext"><span>"Shade of Richthofen!" exclaimed the
-infuriated Spitzer; "but this </span><em class="italics">verdammt</em><span>
-Britisher is some pilot."</span></p>
-<p class="pnext"><span>Carl had become nervous and agitated at the
-gun, and his shooting had begun to annoy his
-leader, who shouted angrily, "Let Max take
-the gun, dachshund!"</span></p>
-<p class="pnext"><span>But Max was huddled up in the bottom of
-the cockpit with an English bullet through
-his head; he had fired his last shot.</span></p>
-<p class="pnext"><span>"Blitz! Here he comes again!" shouted
-the German pilot, as his opponent in the
-roaring Bristol, with engine full out, made as
-though he would ram his enemy in mid-air,
-though such was not his intention.</span></p>
-<p class="pnext"><span>"Himmel, what does he mean?" yelled
-Spitzer, as he also opened out to avert the
-threatened collision, then pulled over the
-controls, stalled his machine, and attempted
-a vertical climb.</span></p>
-<p class="pnext"><span>"Thanks be!" muttered Keane, for this
-gave him just the opportunity he sought.
-For two brief seconds the nether part of the
-fuselage, the only weak spot in the </span><em class="italics">Scorpion</em><span>,
-was exposed, and with a quick eye and
-unerring aim the British pilot poured a short
-burst into the very vitals of his enemy, then
-dived for safety.</span></p>
-<p class="pnext"><span>It was the end of the fight, for the
-armour-piercing bullets ripped through the softer,
-thinner steel of its victim, passed through the
-chamber where the high-pressure cylinders
-which contained the uranis were kept, and
-weakened or cracked one of those deadly
-things, which were at once both the strength
-and the weakness of the </span><em class="italics">Scorpion</em><span>--the only
-thing, as her pilot once said, that its crew need
-fear.</span></p>
-<p class="pnext"><span>Down, down sped the Bristol, as though
-conscious of the terrible catastrophe which
-would shortly follow. It was well that
-she did, for, ten seconds later, it seemed
-as if the end of the world had suddenly come.</span></p>
-<p class="pnext" id="id1"><span>Even while the </span><em class="italics">Scorpion</em><span> was poised in mid-air,
-in the very act of her last vertical climb,
-with nose pointed to the skies, the frightful
-explosion occurred. The terrified onlookers
-threw themselves flat upon the ground, but
-even the earth rocked, and huge trees of the
-forest were uprooted. It was as though the
-mighty concussion had veritably blown a hole
-hi the universe. The </span><em class="italics">Scorpion</em><span>, with all her
-crew, disappeared as if by magic, blown into
-ten thousand fragments, and scattered like
-blazing meteors to the very extremities of the
-Schwarzwald, while the British aeroplane
-did not escape but crashed to earth, with its
-unconscious pilot still firmly holding the
-controls.</span></p>
-<p class="pnext"><span>Thus did the </span><em class="italics">Scorpion</em><span> meet her end, after
-all the vaunted pride and skill of her founders.
-In that place where she was born, there also did
-she come to an inglorious end, in the very
-presence of the evil-minded genius who had
-designed her. Even the dying German
-professor at last saw the error of his ways, and
-wished, in his latest hours, that his energy and
-skill had been devoted to a purpose more
-lofty and humane.</span></p>
-<p class="pnext"><span>The great shock of that mighty explosion
-was felt for a hundred miles and more. In
-far distant lands the seismographic
-instruments recorded its effects. Some said that a
-great earthquake had occurred in central
-Europe, but the Allied Command on the
-Rhine thought that some mighty secret
-ammunition dump in the Schwarzwald had
-been accidentally destroyed, and they sent
-assistance in every shape and form. And
-the first to arrive were the aerial patrols, with
-medicines and supplies, for the survivors on
-that blackened, devastated aerodrome.</span></p>
-<p class="pnext"><span>The unconscious pilot was extricated from
-the wreckage of the Bristol Fighter, and
-after months of careful nursing he was
-restored to convalescence, but he will never
-fly again. For his daring deed, he was
-honoured by his country, and decorated by his
-King. Sharpe, Hooper and Captain Watson,
-though severely wounded, recovered from their
-injuries. Professor Verne had a miraculous
-escape from death when the brigands bombed
-the hangar, and Colonel Tempest--though
-for the rest of his days he will limp with the
-aid of a stick--was mighty glad to lay down
-his high office with a reputation untarnished,
-and with the added honour of a knighthood,
-and a substantial pension.</span></p>
-<p class="pnext"><span>It now but remains to tell what happened
-to that brilliant but misguided German, the
-renowned Professor Rudolf Weissmann. He
-lingered for another day after the terrible
-event which had befallen his fortune, and his
-friend Sir Joseph Verne, constant as ever,
-waited beside him and tended him amid his
-sufferings, for there is a wonderful spirit of
-brotherhood and fraternity amongst men
-of learning. They are the children of no
-particular country, for their parish is the
-world, and, like our own Shakespeare, the
-whole earth claims them for its own.</span></p>
-<p class="pnext"><span>And when he saw that the time of his
-departure was at hand, this erring genius no
-longer tried to withhold from the world the
-great secret which he held, but, desiring to
-make what amends he could for the evil he
-had wrought, he freely offered to reveal the
-secret to his old time friend and fellow-student.</span></p>
-<p class="pnext"><span>But, alas, he had left it too long. The
-candle of life was flickering within him, and
-the end was too near. Even while, with true
-repentance, he endeavoured to give the
-hidden formula of the mysterious uranis to
-his friend, he fell back exhausted and his
-spirit fled.</span></p>
-<p class="pnext"><span>So the wonderful secret was never revealed,
-for it lies buried deep in a thousand fragments,
-amid the dark recesses of the Schwarzwald.
-But Hans, the clock maker, and his friend
-Jacob Stendahl the wood cutter, and many
-more beside, who dwell amid the legend and
-folklore of the Black Forest, still assert that
-at certain times, especially when the full
-round moon casts its silvery light over the
-Schwarzwald, the peasant who treads these
-lonely paths may see the phantom airman on
-his ghostly 'plane.</span></p>
-<div class="vspace" style="height: 1em">
-</div>
-<p class="center pfirst"><span>*      *      *      *      *</span></p>
-<div class="vspace" style="height: 1em">
-</div>
-<p class="pfirst"><span>As for Gadget, the little urchin of a
-stowaway, the sharp-witted, up-to-date cabin
-boy who photographed the raider in mid-air,
-and rendered such valuable service to the
-authorities, he was duly rewarded. The
-Commissioner of Aerial Police pinned a gold
-medal on to his little tunic, soon after the
-great air-liner returned to London, and even
-delivered a speech in his honour, congratulating
-him upon his resourcefulness and courage.</span></p>
-<p class="pnext"><span>He is no longer a street arab, for Captain
-Watson has adopted him, and sent him to a
-preparatory school, where he is pursuing a
-useful course of studies. But, when the long
-summer holidays arrive, you will find Gadget,
-dressed in a smart little uniform, with plenty
-of gold braid about his cap and tunic, standing
-beside the captain or the chief officer, in the
-navigating gondola of the </span><em class="italics">Empress of India</em><span>.
-All who know him speak highly of him. And
-there are even those who believe that this
-little, mischievous, up-to-date cabin boy and
-erstwhile stowaway will one day be one of
-out great air-skippers.</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst"><span>THE END.</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst"><span class="small">THE LONDON AND NORWICH PRESS, LIMITED, LONDON AND NORWICH, ENGLAND</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="center pfirst"><span>*      *      *      *      *      *      *      *</span></p>
-<div class="vspace" style="height: 4em">
-</div>
-<p class="noindent pfirst"><span class="bold large">THE GREAT
-<br />ADVENTURE
-<br />SERIES</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="noindent pfirst"><em class="italics">Titles uniform with this Series</em></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="noindent pfirst"><span class="bold">Percy F. Westerman:</span></p>
-<p class="noindent pnext"><span>The Airship "Golden Hind"
-<br />To the Fore with the Tanks
-<br />The Secret Battleplane
-<br />Wllmshurst of the Frontier Force</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="noindent pfirst"><span class="bold">Rowland Walker:</span></p>
-<p class="noindent pnext"><span>The Phantom Airman
-<br />Dastral of the Flying Corps
-<br />Deville McKeene: The Exploits of the Mystery Airman
-<br />Blake of the Merchant Service
-<br />Buckle of Submarine V2
-<br />Oscar Danby, V.C.</span></p>
-<div class="vspace" style="height: 2em">
-</div>
-<p class="noindent pfirst"><span>S. W. PARTRIDGE &amp; CO.
-<br />4, 5 &amp; 6, SOHO
-<br />LONDON, W.1.</span></p>
-<div class="vspace" style="height: 6em">
-</div>
-<!-- -*- encoding: utf-8 -*- -->
-<div class="backmatter">
-</div>
-<p class="pfirst" id="pg-end-line"><span>*** END OF THIS PROJECT GUTENBERG EBOOK </span><span>THE PHANTOM AIRMAN</span><span> ***</span></p>
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