<h2><SPAN name="CHAPTER_XVIII" id="CHAPTER_XVIII"></SPAN>CHAPTER XVIII</h2>
<h3>The Invasion</h3>
<p>The pulsating air and the chattering sounders
were giving the same dire warning, the alarm
extraordinary of invasion, of imminent and catastrophic
danger from the air.</p>
<p>"Don't try to reach the palace. Everyone on the
ground will have time enough to hide in the deep,
arenak-protected pits beneath the buildings, and you
would be killed by the invaders long before you could
reach the palace. If we can repel the enemy and keep
them from landing, the women will be perfectly safe,
even though the whole city is destroyed. If they effect
a landing we are lost."</p>
<p>"They'll not land, then," Seaton answered grimly, as
he sprang into the Skylark and took his place at the
board. As Crane took out his wireless, Seaton cautioned
him.</p>
<p>"Send in English, and tell the girls not to answer, as
these devils can locate the calls within a foot and will
be able to attack the right spot. Just tell them we're
safe in the Skylark. Tell them to sit tight while we
wipe out this gang that is coming, and that we'll call
them, once in a while, when we have time, during the
battle."</p>
<p>Before Crane had finished sending the message the
crescendo whine of enormous propellers was heard.
Simultaneously there was a deafening concussion and
one entire wing of the palace disappeared in a cloud of
dust, in the midst of which could be discerned a few
flying fragments. The air was filled with Mardonalian
warships. They were huge vessels, each mounting
hundreds of guns, and the rain of high-explosive shells
was rapidly reducing the great city to a wide-spread
heap of debris.</p>
<p>Seaton's hand was upon the lever which would hurl
the Skylark upward into the fray. Crane and DuQuesne,
each hard of eye and grim of jaw, were stationed
at their machine-guns.</p>
<p>"Something's up!" exclaimed Seaton. "Look at the
Kondal!"</p>
<p>Something had happened indeed. Dunark sat at
the board, his hand upon the power lever, and each
of his crew was in place, grasping his weapon, but
every man was writhing in agony, unable to control his
movements. As they stared, momentarily spellbound,
the entire crew ceased their agonized struggles and
hung, apparently lifeless, from their supports.</p>
<p>"They've got to 'em some way—let's go!" yelled
Seaton.</p>
<p>As his hand tightened upon the lever, a succession
of shells burst upon the dock, wrecking it completely,
all three men fancied that the world had come to an
end as the stream of high explosive was directed against
their vessel. But the four-foot shell of arenak was
impregnable, and Seaton shot the Skylark upward into
the midst of the enemy fleet. The two gunners fired
as fast as they could sight their weapons, and with each
shot one of the great warships was blown into fragments.
The Mardonalians then concentrated the fire
of their entire fleet upon their tiny opponent.<span class='pagenum'><SPAN name="Page_632" id="Page_632"></SPAN></span></p>
<p>From every point of the compass, from above and
below, the enemy gunners directed streams of shells
against the dodging vessel. The noise was more than
deafening, it was one continuous, shattering explosion,
and the Earth-men were surrounded by such a blaze of
fire from the exploding shells that they could not see
the enemy vessels. Seaton sought to dodge the shells
by a long dive toward one side, only to find that dozens
of new opponents had been launched against them—the
deadly airplane-torpedoes of Osnome. Steered by
wireless and carrying no crews, they were simply
winged bombs carrying thousands of pounds of terrific
electrical explosive—enough to kill the men inside
the vessel by the concussion of the explosion, even
should the arenak armor be strong enough to withstand
the blow. Though much faster than the Osnomian
vessels, they were slow beside the Skylark, and Seaton
could have dodged a few of them with ease. As he
dodged, however, they followed relentlessly, and in
spite of those which were blown up by the gunners,
their number constantly increased until Seaton thought
of the repellers.</p>
<p>"'Nobody Holme' is right!" he exclaimed, as he
threw on the power actuating the copper bands which
encircled the hull in all directions. Instantly the torpedoes
were hurled backward, exploding as the force
struck them, and even the shells were ineffective, exploding
harmlessly, as they encountered the zone of
force. The noise of the awful detonations lessened
markedly.</p>
<p>"Why the silence, I wonder?" asked Seaton, while
the futile shells of the enemy continued to waste their
force some hundreds of feet distant from their goal,
and while Crane and DuQuesne were methodically destroying
the huge vessels as fast as they could aim and
fire. At every report one of the monster warships
disappeared—its shattered fragments and the bodies of
its crew hurtling to the ground. His voice could not
be heard in even the lessened tumult, but he continued:</p>
<p>"It must be that our repellers have set up a partial
vacuum by repelling even the air!"</p>
<hr style='width: 45%;' />
<p>Suddenly the shelling ceased and the Skylark
was enveloped by a blinding glare from hundreds
of great reflectors; an intense, searching, bluish-violet
light that burned the flesh and seared through eyelids
and eyeballs into the very brain.</p>
<p>"Ultra-violet!" yelled Seaton at the first glimpse of
the light, as he threw on the power. "Shut your eyes!
Turn your heads down!"</p>
<p>Out in space, far beyond reach of the deadly rays, the
men held a short conference, then donned heavy leather-and-canvas
suits, which they smeared liberally with
thick red paint, and replaced the plain glasses of their
helmets with heavy lenses of deep ruby glass.</p>
<p>"This'll stop any ultra-violet ray ever produced,"
exulted Seaton, as he again threw the vessel into the
Mardonalian fleet. A score of the great vessels met
their fate before the Skylark was located, and, although
the terrible rays were again focused upon the intruder
in all their intensity, the carnage continued.</p>
<p>In a few minutes, however, the men heard, or rather
felt, a low, intense vibration, like a silent wave of sound—a
vibration which smote upon the eardrums as no
possible sound could smite, a vibration which racked
the joints and tortured the nerves as though the whole
body were disintegrating. So sudden and terrible was
the effect that Seaton uttered an involuntary yelp of
surprise and pain as he once more fled into the safety
of space.</p>
<p>"What the devil was that?" demanded DuQuesne.
"Was it infra-sound? I didn't suppose such waves
could be produced."</p>
<p>"Infra-sound is right. They produce most anything
here," replied Seaton, and Crane added:</p>
<p>"Well, about three fur suits apiece, with cotton in
our ears, ought to kill any wave propagated through
air."</p>
<p>The fur suits were donned forthwith, Seaton whispering
in Crane's ear:</p>
<p>"I've found out something else, too. The repellers
repel even the air. I'm going to shoot enough juice
through them to set up a perfect vacuum outside.
That'll kill those air-waves."</p>
<p>Scarcely were they back within range of the fleet
when DuQuesne, reaching for his gun to fire the first
shot, leaped backward with a yell.</p>
<p>"Beat it!"</p>
<p>Once more at a safe distance, DuQuesne explained.</p>
<p>"It's lucky I'm so used to handling hot stuff that from
force of habit I never make close contact with anything
at the first touch. That gun carried thousands of volts,
with lots of amperage behind them, and if I had had
a good hold on it I couldn't have let go. We'll block
that game quick enough, though. Thick, dry gloves
covered with rubber are all that is necessary. It's a
good thing for all of us that you have those fancy condensite
handles on your levers, Seaton."</p>
<p>"That was how they got Dunark, undoubtedly," said
Crane, as he sent a brief message to the girls, assuring
them that all was well, as he had been doing at every
respite. "But why were we not overcome at the same
time?"</p>
<p>"They must have had the current tuned to iridium,
and had to experiment until they found the right wave
for steel," Seaton explained.</p>
<p>"I should think our bar would have exploded, with
all that current. They must have hit the copper range,
too?"</p>
<p>Seaton frowned in thought before he answered.</p>
<p>"Maybe because it's induced current, and not a steady
battery impulse. Anyway, it didn't. Let's go!"</p>
<p>"Just a minute," put in Crane. "What are they going
to do next, Dick?"</p>
<p>"Search me. I'm not used to my new Osnomian
mind yet. I recognize things all right after they happen,
but I can't seem to figure ahead—it's like a dimly-remembered
something that flashes up as soon as mentioned.
I get too many and too new ideas at once. I
know, though, that the Osnomians have defenses against
all these things except this last stunt of the charged
guns. That must be the new one that Mardonale stole
from Kondal. The defenses are, however, purely Osnomian
in character and material. As we haven't got<span class='pagenum'><SPAN name="Page_633" id="Page_633"></SPAN></span>
the stuff to set them up as the Osnomians do, we'll
have to do it our own way. We may be able to dope
out the next one, though. Let's see, what have they
given us so far?"</p>
<p>"We've got to hand it to them," responded DuQuesne,
admiringly. "They're giving us the whole range of
wave-lengths, one at a time. They've given us light,
both ultra-violet and visible, sound, infra-sound, and
electricity—I don't know what's left unless they give
us a new kind of X-rays, or Hertzian, or infra-red
heat waves, or...."</p>
<p>"That's it, heat!" exclaimed Seaton. <ins class="corr" title="Transcriber's Note: Double quote mark inserted.">"</ins>They produce
heat by means of powerful wave-generators and by
setting up heavy induced currents in the armor. They
can melt arenak that way."</p>
<p>"Do you suppose we can handle the heat with our
refrigerators?" asked Crane.</p>
<p>"Probably. We have a lot of power, and the new
arenak cylinders of our compressors will stand anything.
The only trouble will be in cooling the condensers.
We'll run as long as we have any water in
our tanks, then go dive into the ocean to cool off. We'll
try it a whirl, anyway."</p>
<hr style='width: 45%;' />
<p>Soon the Skylark was again dealing out death and
destruction in the thick of the enemy vessels, who
again turned from the devastation of the helpless city
to destroy this troublesome antagonist. But in spite of
the utmost efforts of light-waves, sound-waves, and
high-tension electricity, the space-car continued to take
its terrible toll. As Seaton had foretold, the armor
of the Skylark began to grow hot, and he turned on the
full power of the refrigerating system. In spite of
the cooling apparatus, however, the outer walls finally
began to glow redly, and, although the interior was
comfortably cool, the ends of the rifle-barrels, which
were set flush with the surface of the revolving arenak
globes which held them, softened, rendering the guns
useless. The copper repellers melted and dripped off
in flaming balls of molten metal, so that shells once
more began to crash against the armor. DuQuesne,
with no thought of quitting apparent in voice or manner,
said calmly:</p>
<p>"Well, it looks as though they had us stopped for a
few minutes. Let's go back into space and dope out
something else."</p>
<p>Seaton, thinking intensely, saw a vast fleet of enemy
reinforcements approaching, and at the same time received
a wireless call directed to Dunark. It was from
the grand fleet of Kondal, hastening from the bordering
ocean to the defense of the city. Using Dunark's
private code, Seaton told the Karbix, who was in charge
of the fleet, that the enemy had a new invention which
would wipe them out utterly without a chance to fight,
and that he and his vessel were in control of the situation;
and ordered him to see that no Kondalian ship
came within battle range of a Mardonalian. He then
turned to Crane and DuQuesne, his face grim and his
fighting jaw set.</p>
<p>"I've got it doped right now. Give the Lark speed
enough and she's some bullet herself. We've got four
feet of arenak, they've got only an inch, and arenak
doesn't even begin to soften until far above a blinding
white temperature. Strap yourselves in solid, for it's
going to be a rough party from now on."</p>
<p>They buckled their belts firmly, and Seaton, holding
the bar toward their nearest antagonist, applied twenty
notches of power. The Skylark darted forward and
crashed completely through the great airship. Torn
wide open by the forty-foot projectile, its engines
wrecked and its helicopter-screws and propellers completely
disabled, the helpless hulk plunged through two
miles of empty air, a mass of wreckage.</p>
<div class="center"><div class="figcenter"> <ANTIMG src="images/062.png" width-obs="427" height-obs="600" alt="The Skylark Strikes Back." title="The Skylark Strikes Back." /> <span class="caption">The Skylark darted forward and crashed completely through the great airship.... She was an embodied thunderbolt; a huge, irresistible, indestructible projectile, directed by a keen brain inside....</span></div>
</div>
<p>Darting hither and thither, the space-car tore through
vessel after vessel of the Mardonalian fleet. She was
an embodied thunderbolt; a huge, irresistible, indestructible
projectile, directed by a keen brain inside it—the
brain of Richard Seaton, roused to his highest fighting
pitch and fighting for everything that man holds
dear. Tortured by the terrible silent waves, which, now
that the protecting vacuum had been destroyed, were
only partially stopped by the fur suits; shaken and
battered by the terrific impacts and the even greater
shocks occurring every second as the direction of the
vessel was changed; made sick and dizzy by the nauseating
swings and lurches as the Skylark spun about
the central chamber; Seaton's wonderful physique and
his nerves of steel stood him in good stead in this, the
supreme battle of his life, as with teeth tight-locked and
eyes gray and hard as the fracture of high-carbon steel,
he urged the Skylark on to greater and greater efforts.</p>
<p>Though it was impossible for the eye to follow the
flight of the space-car, the mechanical sighting devices
of the Mardonalian vessels kept her in as perfect focus
as though she were stationary, and the great generators
continued to hurl into her the full power of their death-dealing
waves. The enemy guns were still spitting
forth their streams of high-explosive shells, but unlike
the waves, the shells moved so slowly compared to
their target that only a few found their mark, and
many of the vessels fell to the ground, riddled by the
shells of their sister-ships.</p>
<hr style='width: 45%;' />
<p>With anxious eyes Seaton watched the hull of his
animated cannon-ball change in color. From dull
red it became cherry, and as the cherry red gave place
to bright red heat, Seaton threw even more power into
the bar as he muttered through his set teeth:</p>
<p>"Well, Seaton, old top, you've got to cut out this
loafing on the job and get busy!"</p>
<p>In spite of his utmost exertions and in spite of the
powerful ammonia plant, now exerting its full capacity,
but sadly handicapped by the fact that its cooling-water
was now boiling, Seaton saw the arenak shell continue
to heat. The bright red was succeeded by orange,
which slowly changed, first to yellow, then to light
yellow, and finally to a dazzling white; through which,
with the aid of his heavy red lenses, he could still see
the enemy ships. After a time he noted that the color
had gone down to yellow and he thrilled with exultation,
knowing that he had so reduced the numbers of
the enemy fleet that their wave-generators could no
longer overcome his refrigerators. After a few minutes
more of the awful carnage there remained only a<span class='pagenum'><SPAN name="Page_634" id="Page_634"></SPAN></span>
small fraction of the proud fleet which, thousands
strong, had invaded Kondal—a remnant that sought
safety in flight. But even in flight, they still fought
with all their weapons, and the streams of bombs
dropped from their keel-batteries upon the country
beneath marked the path of their retreat with a wide
swath of destruction. Half inclined to let the few
remaining vessels escape, Seaton's mind changed instantly
as he saw the bombs spreading devastation upon
the countryside, and not until the last of the Mardonalian
vessels had been destroyed did he drop the Skylark
into the area of ruins which had once been the
palace grounds, beside the Kondal, which was still lying
as it had fallen.</p>
<p>After several attempts to steady their whirling senses,
the three men finally were able to walk, and, opening
a door, they leaped out through the opening in the still
glowing wall. Seaton's first act was to wireless the
news to Dorothy, who replied that they were coming
as fast as they could. The men then removed their
helmets, revealing faces pale and drawn, and turned
to the helpless space-car.</p>
<p>"There's no way of getting into this thing from the
outside...." Seaton began, when he saw that the Kofedix
and his party were beginning to revive. Soon
Dunark opened the door and stumbled out.</p>
<p>"I have to thank you for more than my life this
time," he said, his voice shaken by uncontrollable emotion
as he grasped the hands of all three men. "Though
unable to move, I was conscious and saw all that happened—you
kept them so busy that they didn't have a
chance to give us enough to kill us outright. You have
saved the lives of millions of our nation and have saved
Kondal itself from annihilation."</p>
<p>"Oh, it's not that bad," answered Seaton, uncomfortably.
"Both nations have been invaded before."</p>
<p>"Yes—once when we developed the ultra-violet ray,
once when Mardonale perfected the machine for producing
the silent sound-wave, and again when we harnessed
the heat-wave. But this would have been the
most complete disaster in history. The other inventions
were not so deadly as was this one, and there were terrible
battles, from which the victors emerged so crippled
that they could not completely exterminate the vanquished,
who were able to re-establish themselves in the
course of time. If it had not been for you, this would
have been the end, as not a Kondalian soldier could
move—any person touching iridium was helpless and
would have been killed."</p>
<p>He ceased speaking and saluted as the Karfedix and
his party rounded a heap of boulders. Dorothy and
Margaret screamed in unison as they saw the haggard
faces of their husbands, and saw their suits, dripping
with a thick substance which they knew to be red, in
spite of its purplish-black color. Seaton dodged nimbly
as Dorothy sought to take him in her arms, and tore off
his suit.</p>
<p>"Nothing but red paint to stop their light-rays," he
reassured her as he lifted her clear from the ground in
a soul-satisfying embrace. Out of the corner of his
eye he saw the Kondalians staring in open-mouthed
amazement at the Skylark. Wheeling swiftly, he
laughed as he saw a gigantic ball of frost and snow!
Again donning his fur suit, he shut off the refrigerators
and returned to his party, where the Karfedix gave him
thanks in measured terms. As he fell silent, Dunark
added:</p>
<p>"Thanks to you, the Mardonalian forces, instead of
wiping us out, are themselves destroyed, while only
a handful of our vessels have been lost, since the grand
fleet could not arrive until the battle was over, and
since the vessels that would have thrown themselves
away were saved by your orders, which I heard. Thanks
to you, we are not even crippled, though our capital is
destroyed and the lives of some unfortunates, who
could not reach the pits in time, have probably been
lost.</p>
<p>"Thanks to you," he continued in a ringing voice,
"and to the salt and the new source of power you have
given us, Mardonale shall now be destroyed utterly!"</p>
<p>After sending out ships to relieve the suffering of
the few wounded and the many homeless, Dunark summoned
a corps of mechanics, who banded on new repellers
and repaired the fused barrels of the machine-guns,
all that was necessary to restore the Skylark to
perfect condition.</p>
<hr style='width: 45%;' />
<p>Facing the party from Earth, the Karfedix stood
in the ruins of his magnificent palace. Back of him
were the nobles of Kondal, and still further back, in
order of rank, stood a multitude of people.</p>
<p>"Is it permitted, oh noble Karfedo, that I reward
your captive for his share in the victory?" he asked.</p>
<p>"It is," acquiesced Seaton and Crane, and Roban
stepped up to DuQuesne and placed in his hand a
weighty leather bag. He then fastened about his left
wrist the Order of Kondal, the highest order of the
nation.</p>
<p>He then clasped about Crane's wrist a heavily-jeweled,
peculiarly-ornamented disk wrought of a deep
ruby-red metal, supported by a heavy bracelet of the
same material, the most precious metal of Osnome.
At sight of the disk the nobles saluted and Seaton barely
concealed a start of surprise, for it bore the royal emblem
and delegated to its bearer power second only to
that of the Karfedix himself.</p>
<p>"I bestow upon you this symbol, Karfedix Crane, in
recognition of what you have this day done for Kondal.
Wherever you may be upon Kondalian Osnome, which
from this day henceforth shall be all Osnome, you have
power as my personal representative, as my eldest son."</p>
<p>He drew forth a second bracelet, similar to the first
except that it bore seven disks, each differently designed,
which he snapped upon Seaton's wrist as the nobles
knelt and the people back of them threw themselves
upon their faces.</p>
<p>"No language spoken by man possesses words sufficiently
weighty to express our indebtedness to you, Karfedix
Seaton, our guest and our savior. The First
Cause has willed that you should be the instrument
through which Kondal is this day made supreme upon
Osnome.</p>
<p>In small and partial recognition of that instrumentality,
I bestow upon you these symbols, which proclaim<span class='pagenum'><SPAN name="Page_635" id="Page_635"></SPAN></span>
you our overlord, the ultimate authority of Osnome.</p>
<p>While this is not the way in which I had thought
to bid you farewell, the obligations which you have
heaped upon us render all smaller things insignificant.
When you return, as I hope and trust you soon will,
the city shall be built anew and we can welcome you as
befits your station."</p>
<p>Lifting both arms above his head he continued:</p>
<p>"May the great First Cause smile upon you in all
your endeavors until you solve the Mystery: may your
descendants soon reach the Ultimate Goal. Goodbye."</p>
<p>Seaton uttered a few heartfelt words in response and
the party stepped backward toward the Skylark. As
they reached the vessel the standing Karfedix and the
ranks of kneeling nobles snapped into the double salute—truly
a rare demonstration in Kondal.</p>
<p>"What'll we do now?" whispered Seaton.</p>
<p>"Bow, of course," answered Dorothy.</p>
<p>They bowed, deeply and slowly, and entered their
vessel. As the Skylark shot into the air with the greatest
acceleration that would permit its passengers to
move about, the grand fleet of Kondalian warship fired
a deafening salute.</p>
<hr style='width: 45%;' />
<p>It had been planned before the start that each person
was to work sixteen hours out of the twenty-four.
Seaton was to drive the vessel during the first two
eight-hour periods of each day. Crane was to observe
the stars during the second and to drive during the
third. DuQuesne was to act as observer during the
first and third periods. Margaret had volunteered to
assist the observer in taking his notes during her waking
hours, and Dorothy appointed herself cook and
household manager.</p>
<p>As soon as the Skylark had left Osnome, Crane told
DuQuesne that he and his wife would work in the
observation room until four o'clock in the afternoon,
at which time the prearranged system of relief would
begin, and DuQuesne retired to his room.</p>
<p>Crane and Margaret made their way to the darkened
room which housed the instruments and seated themselves,
watching intently and making no effort to conceal
their emotion as first the persons beneath them,
then the giant war-vessels, and finally the ruined city
itself, were lost to view. Osnome slowly assumed the
proportions of a large moon, grew smaller, and as it
disappeared Crane began to take notes. For a few
hours the seventeen suns of this strange solar system
shone upon the flying space-car, after which they
assumed the aspect of a widely-separated cluster of
enormous stars, slowly growing smaller and smaller
and shrinking closer and closer together.</p>
<p>At four o'clock in the afternoon, Washington time,
DuQuesne relieved Crane, who made his way to the
engine room.</p>
<p>"It is time to change shifts, Dick. You have not
had your sixteen hours, but everything will be regular
from now on. You two had better get some rest."</p>
<p>"All right," replied Seaton, as he relinquished the
controls to Crane, and after bidding the new helmsman
goodnight he and Dorothy went below to their cabin.</p>
<p>Standing at a window with their arms around each
other they stared down with misty eyes at the very faint
green star, which was rapidly decreasing in brilliance
as the Skylark increased its already inconceivable velocity.
Finally, as it disappeared altogether, Seaton
turned to his wife and tenderly, lovingly, took her in
his arms.</p>
<p>"Littlest Girl.... Sweetheart...." he whispered,
and paused, overcome by the intensity of his feelings.</p>
<p>"I know, husband mine," she answered, while tears
dimmed her glorious eyes. "It is too deep. With
nothing but words, we can't say a single thing."</p>
<hr style="width: 65%;" />
<div style="break-after:column;"></div><br />