The first blinding rays of the sun were beating straight on the colossal figure, which glittered fantastically, like a huge splintered opal, in their brilliance.

It glared down at Harley. The abyss of a mouth opened as though again giving vent to silent, infernal laughter. Then, with the noise of a landslide, the giant form settled slowly to the ground. The rock half-moons of curtains dropped over the expressionless, dull eyes. The whole great figure quivered, and grew still. It lay without movement, stretched along the ground like a craggy, opalescent hill.

Dazed, stunned by such fantastic behavior, Harley struggled wearily to his feet. He had been a dead man as surely as though shot with a ray-gun. One twitch of those terrible rock pincers would have broken him in two pieces. It had seemed as though that deadly twitch were surely forthcoming. And then the thing had released him--and had lain down to go to sleep! Or was it asleep?

He took a few slow steps away from it, expecting to see the three great tentacles flash out to capture him as a cat claws at a mouse that thinks it is escaping. The arms didn't move. Astounding as it was, Harley was free to run away if he chose. Why was that?

A hint of a clue to the creature's action began to unfold in his mind.

When he had first laid eyes on it, in daylight, it was asleep. It had not pursued him during the preceding day, which argued that again it was asleep. And now, with the first touch of dawn, it was once more quiet, immobile.

The answer seemed to be that it was entirely nocturnal; that for some obscure, unguessable reason sunlight induced in it a state of suspended animation. It seemed an insane theory, but no other surmise was remotely reasonable.

But if it were invariably sunk in a coma during daylight, why had it delayed killing him just a moment ago? Its every act indicated that it possessed intelligence of a high order. It was more than probable that it realized its limitation--why hadn't it acted in accordance with that realization?

On thinking it over, he believed he had the answer to that, too. He remembered the way the gaping mouth had seemed to express devilish mirth. The thing was playing with him. That was all. It had saved him for another night of hopeless flight and infallible trailing through the forests of Z-40.

He gazed at the monster in a frenzy of impotent rage and fear. If only he could kill it somehow in its sleep! But he couldn't. In no way could he harm it. Secure in its silicate covering, it was impervious to his wildest attempts at destruction. And it knew it, too; hadn't it laughed just before sinking down to slumber through the asteroidal day?

With his Sco drill he might have pierced that silicon dioxide armor till he reached the creature's gritty flesh. Then he could have used his ray-pistol, possibly disintegrating all its vitals and leaving only an empty rock sh.e.l.l sprawling hugely there in the trampled underbrush.

But he had neither drill nor pistol. The one had been wrecked by the monster; the other he had dropped in his madness of fright, after completely exhausting its power chamber.

Half crazed by the hopelessness of his plight, he paced up and down beside the great length of animated stone. Trapped on an asteroid--utterly unarmed--alone with the most pitiless, invulnerable creation Nature had placed in a varied universe! Could h.e.l.l itself have devised a more terrible fate?

Shuddering, he turned away. He had some two and a half hours of grace, before the sun should set again and darkness release the colossus from its torpor. There was only one thing he could do: place the diameter of the sphere between the thing and himself, and try to exist through another night of terror.

His hands went to his belt to adjust the gravity regulator strapped about his waist. By reducing his weight to an ounce or two, he could make the long journey possible for his fatigue-numbed muscles--

His hands clenched into fists, and his breath whistled between his set teeth as a wild hope came to him. The touch of the regulator had brought inspiration. A way to defeat the gigantic creature stretched on the ground beside him! A way to banish it forever from the surface of this lovely little world where all was perfect but the monstrous thing with which it was cursed!

Trembling with the reaction wrought in him by the faint glow of hope, he began to race toward the lake and his wrecked Blinco Dart. It wasn't hard to find the way; the rock giant had left a trail as broad as a road; trees broken off like celery stalks, bushes smashed flat, tracks that looked like shallow wells sunk into the firm ground. Fifty yards to a step, he leaped along this path, praying that one object, just one bit of machinery in the Dart had escaped the general wreckage.

Arrived at the little sh.e.l.l at last, he was forced to pause a moment and compose himself before he could step into the battered interior.

Everything hinged on this one final chance!

Drawing a long breath, he entered the cabin and made his way to the stern repellor. A groan escaped his lips. It was ruined. Evidently the thing had reached in the man-hole opening with one of its three mighty tentacles, and, with sure instinct, had fastened its stone claws on the repellor housing. At any rate, it was ground to bits. But--there was the bow repellor.

He went to that, and the flame of hope came back to his eyes. It was untouched! He threw back the housing to make sure. Yes, the inter-sliding series of plates, that reversed or neutralized gravitational attraction at a touch, were in alignment.

He bent to the task of disconnecting it from the heavy bed-plate to which it was bolted, his fingers flying frenziedly. Then back to the torpid colossus he hurried, clutching the precious repellor tight in his arms lest he should drop it, walking carefully lest he should fall with it.

There he was faced by a new difficulty that at first seemed insurmountable. How could he fasten the repellor to that great, impenetrable, opalescent bulk?

A second time he bounded back toward the Dart, to return with the heavy bow and stern bed-plates from its hull.

Once more the orange ball of the sun was sinking low. The terrible brevity of those three-hour days! He had less than ten minutes, Earth time, in which to work.

One of the thing's arms, or tentacles, was pointing out away from the parent ma.s.s. It was twice the diameter of his body, and was ponderously heavy; but by rigging a fulcrum and lever device, with a stone as the fulcrum and a tough log as the lever, he managed to raise it high enough to thrust one of the bed-plates under it. The other ma.s.sive metal sheet he laid across the top.

The lower rim of the sun touched the horizon. A tremor ran through the colossus. In frantic haste, racing against the flying seconds, Harley clamped the two plates tight against the columnar tentacle with four long hull-bolts from the Dart. He set the repellor in position on the top bed-plate, and began to fasten it down.

He felt another tremor run through the stone column on which he was squatting. With a rasping sound, one of the half-moon rock-curtains the thing had for eyelids blinked open and shut. He shot the last bolt into place and tightened it.

The stone claws, just behind which he had fastened the repellor, ground savagely shut. The great tentacle began to lift, and carried him with it--toward the chasm of a mouth. That chasm opened wide....

Harley straightened up and jumped for the ground. As he jumped, he kicked the repellor control bar hard over.

There was a shrieking of wind as though all the hurricanes in the universe were battling each other. He felt himself turned over and over, buffeted, torn at, in a mad aerial whirlpool. The whirlpool calmed as the abruptly created vacuum, caused by the monster's rapid drive upward, pa.s.sed after it into s.p.a.ce. Far overhead there was one fleeting glimpse of a pinpoint of dull opalescence reflecting the rays of the dying sun.

Then the pinpoint disappeared in fathomless s.p.a.ce. With his gravity regulator adjusted to the point where it almost neutralized his weight, he fell slowly back toward the ground....

Almost immediately after he had landed in the darkness that blanketed the surface of the planetoid, a big s.p.a.ce yacht settled down near him. A searchlight bored a hole in the blackness, to bathe him in cold light.

Down the beam came a band of men from Earth, pushing atomic cannon and gazing apprehensively about them. In the lead was an elderly man with the six-bar dollar-mark insignia of a business executive on his purple tunic.

He hastened to Harley's side. Harley only dimly heard what he said.

Something to the effect that the man had been worried after selling the fatal asteroid. Had got in touch with the Radivision Corporation and learned that this call number was dead. Had come with men and big guns to rescue him, if it wasn't too late, and take him back to Earth. Had cruised for half an hour before locating him. "I've been calling myself a murderer ever since I let you have Z-40, Mr. 2Q14N20," he concluded.

"I was sure we'd get here only to find you'd been killed. But I see you've managed to escape from the creature so far--though by the look of you, it must have been a narrow shave."

At this Harley shook off some of the gathering dizziness that hazed his mind. He threw back his shoulders. "Managed to _escape_? I did better than that. I got rid of the thing forever! Yes, I'll return to Earth with you, but only because I need a new Blinco Dart. I'm coming back to Z-40 at once. Perfect little paradise, now that I've got rid of that--animated--rock pile--"

The belated rescuers caught him as he collapsed.

[Footnote 1: This implement, invented by Blansco 9X247A in 2052, is not so much a "drill" as a compressor. It is somewhat superficially defined in the Universal Dictionary, 2061 edition, as "a portable mechanism which, by alternating gaseous blasts of extreme heat and cold, breaks down the atoms of inorganic matter, causing them to collapse together in dense compression." Thus a cubic yard of earth can be reduced in size, in a few moments, to a pebble no larger than a pea; which pebble would weigh, on Earth, close to a ton.]