<p>Glittering in the blue light, it looked unreal. Incredible. A dazzling
dream. He stopped among the fearful things that seemed gathered as if
to guard it, and stared with wide eyes through the opened face-plate
of his helmet.</p>
<p>He saw neat stacks of gold ingots, new, freshly smelted; bars of
silver-white iridium, of argent platinum, of blue-white osmium. Many
of them. Thousands of pounds, Thad knew. He trembled at thought of
their value. Almost beyond calculation.</p>
<p>Then he saw the coffer, lying beyond the piled, gleaming ingots—a
huge box, eight feet long; made of some crystal that glittered with
snowy whiteness, filled with sparkling, iridescent gleams, and inlaid
with strange designs, apparently in vermilion enamel.</p>
<p>With a little cry, he ran toward the chest, moving awkwardly in the
loose, deflated fabric of the Osprey suit.</p>
<hr style="width: 45%;" />
<p><span class="f2">B</span>eside the coffer, on the floor of the hold, was literally a mountain
of flame—blazing gems, heaped as if they had been carelessly dumped
from it; cut diamonds, incredibly gigantic; monster emeralds,
sapphires, rubies; and strange stones, that Thad did not recognize.</p>
<p>And Thad gasped with horror, when he looked at the designs of the
vermilion inlay, in the white, gleaming crystal. Weird forms. Shapes
of creatures somewhat like gigantic spiders, and more unlike them.
Demoniac things, wickedly fanged, jaws slavering. Executed with
masterly skill, that made them seem living, menacing, secretly
gloating!</p>
<p>Thad stared at them for long minutes, fascinated almost hypnotically.
Three times he approached the chest, to lift the lid and find what it
held. And three times the unutterable horror of those crimson images
thrust him back, shuddering.</p>
<p>"Nothing but pictures," he muttered hoarsely.</p>
<p>A fourth time he advanced, trembling, and seized the lid of the
coffer. Heavy, massive, it was fashioned also of glistening white
crystal, and inlaid in crimson with weirdly hideous figures. Great
hinges of white platinum held it on the farther side; it was fastened
with a simple, heavy hasp of the precious metal.</p>
<p>Hands quivering, Thad snapped back the hasp, lifted the lid.</p>
<p>New treasure in the chest would not have surprised him. He was
prepared to meet dazzling wonders of gems or priceless metal. Nor
would he have been astonished at some weird creature such as one of
those whose likenesses were inlaid in the crystal.</p>
<p>But what he saw made him drop the massive lid.</p>
<p>A woman lay in the chest—motionless, in white.</p>
<hr style="width: 45%;" />
<p><span class="f2">I</span>n a moment he raised the lid again; examined the still form more
closely. The woman had been young. The features were regular, good to
look upon. The eyes were closed; the white face appeared very
peaceful.</p>
<p>Save for the extreme, cadaverous pallor, there was no mark of death.
With a fancy that the body might be miraculously living, sleeping,
Thad thrust an arm out through the opened panel of his suit, and
touched a slender, bare white arm. It was stiff, very cold.</p>
<p>The still, pallid face was framed in fine brown hair. The fair, small
hands were crossed upon the breast, over the simple white garment.</p>
<p>A queer ache came into his heart. Something made him think of a white
tower in the red hills near Helion, and a girl waiting in its fragrant
garden of saffron and purple—a girl like this.</p>
<p>The body lay upon a bed of blazing jewels.</p>
<p>It appeared, Thad thought, as if the pile of gems upon the floor had
been hastily scraped from the coffer, to make room for the quiet form.
He wondered how long it had lain there. It looked as if it might have
been living but minutes before. Some preservative....</p>
<p>His thought was broken by a sound that rang from the open hatchway on
the deck above—the furious barking and yelping of the dog. Abruptly
that was silent, and in its place came the uncanny and terrifying
scream that Thad had heard once before, on this flier of mystery. A
shriek so keen and shrill that it seemed to tear out his nerves by
their roots. The voice of the haunter of the ship.</p>
<hr style="width: 45%;" />
<p><span class="f2">W</span>hen Thad came back upon the deck, the dog was still barking
nervously. He saw the animal forward, almost at the bow. Hackles
raised, tail between its legs, it was slinking backward, barking
sharply as if to call for aid.</p>
<p>Apparently it was retreating from something between Thad and itself.
But Thad, searching the dimly-lit deck, could see no source of alarm.
Nor could the structures upon it have shut any large object from his
view.</p>
<p>"It's all right!" Thad called, intending to reassure the frightened
animal, but finding his voice queerly dry. "Coming on the double, old
man. Don't worry."</p>
<p>The dog had reached the end of the deck. It stopped yelping, but
snarled and whined as if in terror. It began darting back and forth,
moving exactly as if something were slowly closing in upon it,
trapping it in the corner. But Thad could see nothing.</p>
<p>Then it made a wild dash back toward Thad, darting along by the wall,
as if trying to run past an unseen enemy.</p>
<p>Thad thought he heard quick, rasping footsteps, then, that were not
those of the dog. And something seemed to catch the dog in mid-air, as
it leaped. It was hurled howling to the deck. For a moment it
struggled furiously, as if an invisible claw had pinned it down. Then
it escaped, and fled whimpering to Thad's side.</p>
<p>He saw a new wound across its hips. Three long, parallel scratches,
from which fresh red blood was trickling.</p>
<p>Regular scraping sounds came from the end of the deck, where no moving
thing was to be seen—sounds such as might be made by the walking of
feet with unsheathed claws. Something was coming back toward Thad.
Something that was <i>invisible</i>!</p>
<hr style="width: 45%;" />
<p><span class="f2">T</span>error seized him, with the knowledge. He had nerved himself to face
desperate men, or a savage animal. But an invisible being, that could
creep upon him and strike unseen! It was incredible ... yet he had
seen the dog knocked down, and the bleeding wound it had received.</p>
<p>His heart paused, then beat very quickly. For the moment he thought
only blindly, of escape. He knew only an overpowering desire to hide,
to conceal himself from the invisible thing. Had it been possible, he
might have tried to leave the flier.</p>
<p>Beside him was one of the companionways amidships, giving access to a
compartment of the vessel that he had not explored. He turned, leaped
down the steps, with the terrified dog at his heels.</p>
<p>Below, he found himself in a short hall, dimly lighted. Several metal
doors opened from it. He tried one at random. It gave. He sprang
through, let the dog follow, closed and locked it.</p>
<p>Trying to listen, he leaned weakly against the door. The rushing of
his breath, swift and regular. The loud hammer of his thudding heart.
The dog's low whines. Then—unmistakable scraping sounds, outside.</p>
<p>The scratching of claws, Thad knew. Invisible claws!</p>
<p>He stood there, bracing the door with the weight of his body, holding
the welding arc ready in his hand. Several times the hinges creaked,
and he felt a heavy pressure against the panels. But at last the
scratching sounds ceased. He relaxed. The monster had withdrawn, at
least for a time.</p>
<p>When he had time to think, the invisibility of the thing was not so
incredible. The mounted creatures he had seen in the hold were
evidence that the flier had visited some unknown planet, where weird
life reigned. It was not beyond reason that such a planet should be
inhabited by beings invisible to human sight.</p>
<p>Human vision, as he knew, utilizes only a tiny fraction of the
spectrum. The creature must be largely transparent to visible light,
as human flesh is radiolucent to hard X-rays. Quite possibly it could
be seen by infra-red or ultra-violet light—evidently it was visible
enough to the dog's eyes, with their different range of sensitivity.</p>
<hr style="width: 45%;" />
<p><span class="f2">P</span>ushing the subject from his mind, he turned to survey the room into
which he had burst. It had apparently been occupied by a woman. A
frail blue silk dress and more intimate items of feminine wearing
apparel were hanging above the berth. Two pairs of delicate black
slippers stood neatly below it.</p>
<p>Across from him was a dressing table, with a large mirror above it.
Combs, pins, jars of cosmetic cluttered it. And Thad saw upon it a
little leather-bound book, locked, stamped on the back "Diary."</p>
<p>He crossed the room and picked up the little book, which smelled
faintly of jasmine. Momentary shame overcame him at thus stealing the
secrets of an unknown girl. Necessity, however, left him no choice but
to seize any chance of learning more of this ship of mystery and her
invisible haunter. He broke the flimsy fastening.</p>
<p>Linda Cross was the name written on the fly-leaf, in a firm, clear
feminine hand. On the next page was the photograph, in color, of a
girl, the brown-haired girl whose body Thad had discovered in the
crystal coffer in the hold. Her eyes, he saw, had been blue. He
thought she looked very lovely—like the waiting girl in his old dream
of the silver tower in the red hills by Helion.</p>
<p>The diary, it appeared, had not been kept very devotedly. Most of the
pages were blank.</p>
<p>One of the first entries, dated a year and a half before, told of a
party that Linda had attended in San Francisco, and of her refusal to
dance with a certain man, referred to as "Benny," because he had been
unpleasantly insistent about wanting to marry her. It ended:</p>
<blockquote><p>"Dad said to-night that we're going off in the <i>Dragon</i>
again. All the way to Uranus, if the new fuel works as he
expects. What a lark, to explore a few new worlds of our
own! Dad says one of Uranus' moons is as large as Mercury.
And Benny won't be proposing again soon!"</p>
</blockquote>
<p>Turning on, Thad found other scattered entries, some of them dealing
with the preparation for the voyage, the start from San Francisco—and
a huge bunch of flowers from "Benny," the long months of the trip
through space, out past the orbit of Mars, above the meteor belt,
across Jupiter's orbit, beyond the track of Saturn, which was the
farthest point that rocket explorers had previously reached, and on to
Uranus, where they could not land because of the unstable surface.</p>
<hr style="width: 45%;" />
<p><span class="f2">T</span>he remainder of the entries Thad found less frequent, shorter,
bearing the mark of excitement: landing upon Titania, the third and
largest satellite of Uranus; unearthly forests, sheltering strange and
monstrous life; the hunting of weird creatures, and mounting them for
museum specimens.</p>
<p>Then the discovery of a ruined city, whose remains indicated that it
had been built by a lost race of intelligent, spiderlike things; the
finding of a temple whose walls were of precious metals, containing a
crystal chest filled with wondrous gems; the smelting of the metal
into convenient ingots, and the transfer of the treasure to the hold.</p>
<p>The first sinister note there entered the diary:</p>
<blockquote><p>"Some of the men say we shouldn't have disturbed the temple.
Think it will bring us bad luck. Rubbish, of course. But one
man did vanish while they were smelting the gold. Poor Mr.
Tom James. I suppose he ventured away from the rest, and
something caught him."</p>
</blockquote>
<p>The few entries that followed were shorter, and showed increasing
nervous tension. They recorded the departure from Titania, made almost
as soon as the treasure was loaded. The last was made several weeks
later. A dozen men had vanished from the crew, leaving only gouts of
blood to hint the manner of their going. The last entry ran:</p>
<blockquote><p>"Dad says I'm to stay in here to-day. Old dear, he's afraid
the thing will get me—whatever it is. It's really serious.
Two men taken from their berths last night. And not a trace.
Some of them think it's a curse on the treasure. One of them
swears he saw Dad's stuffed specimens moving about in the
hold.</p>
<p>"Some terrible thing must have slipped aboard the flier, out
of the jungle. That's what Dad and the captain think. Queer
they can't find it. They've searched all over. Well...."</p>
</blockquote>
<p>Musing and regretful, Thad turned back for another look at the smiling
girl in the photograph.</p>
<p>What a tragedy her death had been! Reading the diary had made him like
her. Her balance and humor. Her quiet affection for "Dad." The calm
courage with which she seemed to have faced the creeping, lurking
death that darkened the ship with its unescapable shadow.</p>
<p>How had her body come to be in the coffer, he wondered, when all the
others were—gone? It had shown no marks of violence. She must have
died of fear. No, her face had seemed too calm and peaceful for that.
Had she chosen easy death by some poison, rather than that other
dreadful fate? Had her body been put in the chest to protect it, and
the poison arrested decomposition?</p>
<p>Thad was still studying the picture, thoughtfully and sadly, when the
dog, which had been silent, suddenly growled again, and retreated from
the door, toward the corner of the room.</p>
<p>The invisible monster had returned. Thad heard its claws scratching
across the door again. And he heard another dreadful sound—not the
long, shrill scream that had so grated on his nerves before, but a
short, sharp coughing or barking, a series of shrill, indescribable
notes that could have been made by no beast he knew.</p>
<hr style="width: 45%;" />
<p><span class="f2">T</span>he decision to open the door cost a huge effort of Thad's will.</p>
<p>For hours he had waited, thinking desperately. And the thing outside
the door had waited as patiently, scratching upon it from time to
time, uttering those dreadful, shrill coughing cries.</p>
<p>Sooner or later, he would have to face the monster. Even if he could
escape from the room and avoid it for a time, he would have to meet it
in the end. And it might creep upon him while he slept.</p>
<p>To be sure, the issue of the combat was extremely doubtful. The
monster, apparently, had succeeded in killing every man upon the
flier, even though some of them had been armed. It must be large and
very ferocious.</p>
<p>But Thad was not without hope. He still wore his Osprey-suit. The
heavy fabric, made of metal wires impregnated with a tough, elastic
composition, should afford considerable protection against the thing.</p>
<p>The welding arc, intended to fuse refractive meteoric iron, would be
no mean weapon, at close quarters. And the quarters would be close.</p>
<p>If only he could find some way to make the thing visible!</p>
<p>Paint, or something of the kind, would stick to its skin.... His eyes,
searching the room, caught the jar of face powder on the dressing
table. Dash that over it! It ought to stick enough to make the outline
visible.</p>
<p>So, at last, holding the powder ready in one hand, he waited until a
time when the pressure upon the door had just relaxed, and he knew the
monster was waiting outside. Swiftly, he opened the door....</p>
<hr style="width: 45%;" />
<p><span class="f2">T</span>had had partially overcome the instinctive horror that the unseen
being had first aroused in him. But it returned in a sickening wave
when he heard the short, shrill, coughing cries, hideously eager, that
greeted the opening of the door. And the quick rasping of naked claws
upon the floor. <i>Sounds from nothingness!</i></p>
<p>He flung the powder at the sound.</p>
<p>A form of weird horror materialized before him, still half invisible,
half outlined with the white film of adhering powder: gigantic and
hideous claws, that seemed to reach out of empty air, the side of a
huge, scaly body, a yawning, dripping jaw. For a moment Thad could see
great, hooked fangs in that jaw. Then they vanished, as if an unseen
tongue had licked the powder from them, dissolving it in fluids which
made it invisible.</p>
<p>That unearthly, half-seen shape leaped at him.</p>
<p>He was carried backward into the room, hurled to the floor. Claws were
rasping upon the tough fabric of his suit. His arm was seized
crushingly in half-visible jaws.</p>
<hr style="width: 45%;" />
<p><span class="f2">D</span>esperately he clung to the welding tool. The heated electrode was
driven toward his body. He fought to keep it away; he knew that it
would burn through even the insulated fabric of his suit.</p>
<p>A claw ripped savagely at his side. He heard the sharp, rending sound,
as the tough fabric of his suit was torn, and felt a thin pencil of
pain drawn along his body, where a claw cut his skin.</p>
<p>Suddenly the suit was full of the earthy fetor of the monster's body,
nauseatingly intense. Thad gasped, tried to hold his breath, and
thrust upward hard with the incandescent electrode. He felt warm blood
trickling from the wound.</p>
<p>A numbing blow struck his arm. The welding tool was carried from his
hand. Flung to the side of the room, it clattered to the floor; and
then a heavy weight came upon his chest, forcing the breath from his
lungs. The monster stood upon his body and clawed at him.</p>
<p>Thad squirmed furiously. He kicked out with his feet, encountering a
great, hard body. Futilely he beat and thrust with his arms against
the pillarlike limb.</p>
<p>His body was being mauled, bruised beneath the thick fabric. He heard
it tear again, along his right thigh. But he felt no pain, and thought
the claws had not reached the skin.</p>
<p>It was the yellow dog that gave him the chance to recover the weapon.
The animal had been running back and forth in the opposite end of the
room, fairly howling in excitement and terror. Now, with the mad
courage of desperation, it leaped recklessly at the monster.</p>
<p>A mighty, dimly seen claw caught it, hurled it back across the room.
It lay still, broken, whimpering.</p>
<p>For a moment the thing had lifted its weight from Thad's body. And
Thad slipped quickly from beneath it, flung himself across the room,
snatched up the welding tool.</p>
<p>In an instant the creature was upon him again. But he met it with the
incandescent electrode. He was crouched in a corner, now, where it
could come at him from only one direction. Its claws still slashed at
him ferociously. But he was able to cling to the weapon, and meet each
onslaught with hot metal.</p>
<p>Gradually its mad attacks weakened. Then one of his blind, thrusting
blows seemed to burn into a vital organ. A terrible choking,
strangling sound came from the air. And he heard the thrashing
struggles of wild convulsions. At last all was quiet. He prodded the
thing again and again with the hot electrode, and it did not move. It
was dead.</p>
<p>The creature's body was so heavy that Thad had to return to the
bridge, and shut off the current in the gravity plates along the keel,
before he could move it. He dragged it to the lock through which he
had entered the flier, and consigned it to space....</p>
<hr style="width: 45%;" />
<p><span class="f2">F</span>ive days later Thad brought the <i>Red Dragon</i> into the atmosphere of
Mars. A puzzled pilot came aboard, in response to his signals, and
docked the flier safely at Helion. Thad went down into the hold again,
with the astonished port authorities who had come aboard to inspect
the vessel.</p>
<p>Again he passed among the grotesque and outrageous monsters in the
hold, leading the gasping officers. While they marveled at the
treasure, he lifted the weirdly embellished lid of the coffer of white
crystal, and looked once more upon the still form of the girl within
it.</p>
<p>Pity stirred him. An ache came in his throat.</p>
<p>Linda Cross, so quiet and cold and white, and yet so lovely. How
terrible her last days of life must have been, with doom shadowing the
vessel, and the men vanishing mysteriously, one by one!
Terrible—until she had sought the security of death.</p>
<p>Strangely, Thad felt no great elation at the thought that half the
incalculable treasure about him was now safely his own, as the award
of salvage. If only the girl were still living.... He felt a
poignantly keen desire to hear her voice.</p>
<p>Thad found the note when they started to lift her from the chest. A
hasty scrawl, it lay beneath her head, among glittering gems.</p>
<blockquote><p>"This woman is not dead. Please have her given skilled
medical attention as soon as possible. She lies in a state
of suspended animation, induced by the injection of fifty
minims of zeronel.</p>
<p>"She is my daughter, Linda Cross, and my sole heir.</p>
<p>"I entreat the finders of this to have care given her, and
to keep in trust for her such part of the treasure on this
ship as may remain after the payment of salvage or other
claims.</p>
<p>"Sometime she will wake. Perhaps in a year, perhaps in a
hundred. The purity of my drugs is uncertain, and the
injection was made hastily, so I do not know the exact time
that must elapse.</p>
<p>"If this is found, it will be because the lurking thing upon
the ship has destroyed me and all my men.</p>
<p>"Please do not fail me.</p>
</blockquote>
<p class="f1">Levington Cross."</p>
<p>Thad bought the white tower of his dreams, slim and graceful in its
Martian garden of saffron and purple, among the low ocher hills beside
Helion. He carried the sleeping girl through the silver door where the
girl of his dreams had waited, and set the coffer in a great, vaulted
chamber. Many times each day he came into the room where she lay, to
look into her pallid face, and feel her cold wrist. He kept a nurse in
attendance, and had a physician call daily.</p>
<p>A long Martian year went by.</p>
<hr style="width: 45%;" />
<p><span class="f2">L</span>ooking in his mirror one day, Thad saw little wrinkles about his
eyes. He realized that the nervous strain and anxiety of waiting was
aging him. And it might be a hundred years, he remembered, before
Linda Cross came from beneath the drug's influence.</p>
<p>He wondered if he should grow old and infirm, while Linda lay still
young and beautiful and unchanged in her sleep; if she might awake,
after long years, and see in him only a feeble old man. And he knew
that he would not be sorry he had waited, even if he should die before
she revived.</p>
<p>On the next day, the nurse called him into the room where Linda lay.
He was bending over her when she opened her eyes. They were blue,
glorious.</p>
<p>A long time she looked up at him, first in fearful wonder, then with
confidence, and dawning understanding. And at last she smiled.</p>
<div style="break-after:column;"></div><br />