Slowly his mind cleared as, slowly, the mind of a man wakening from nightmare clears away the fear-fabric of which the dream was woven. He was breathing hard and he felt weaker, but he could think.
He stood studying the Roller. It had been motionless during the mental duel it had so nearly won. Now it rolled a few feet to one side, to the nearest of the blue bushes. Three tentacles whipped out of their grooves and began to investigate the bush.
“O. K.,” Carson said, “so it’s war then.” He managed a wry grin. “If I got your answer straight, peace doesn’t appeal to you.’ And, because he was, after all, a quite young man and couldn’t resist the impulse to be dramatic, he added. ‘To the death!”
Blit his voice, in that utter silence, sounded very silly, even to himself. It came to him, then, that this was to the death. Not only his own death or that of the red spherical thing which he now thought of as the Roller, but death to the entire race of one or the other of them. The end of the human race, if he failed.
It made him suddenly very humble and very afraid to think that. More than to think it, to know it. Somehow, with a knowledge that was above even faith, he knew that the Entity who had arranged this duel had told the truth about its intentions and its powers. It wasn’t kidding.
The future of humanity depended upon him. It was an awful thing to realize, and he wrenched his mind away from it. He had to concentrate on the situation at hand.
There had to be some way of getting through the barrier, or of killing through the barrier.
Mentally? He hoped that wasn’t all, for the Roller obviously had stronger telepathic powers than the primitive, undeveloped ones of the human race. Or did it?
He had been able to drive the thoughts of the Roller out of his own mind; could it drive out his? If its ability to project were stronger, might not its receptivity mechanism be more vulnerable?
He stared at it and endeavored to concentrate and focus all his thoughts upon it.
“Die” he thought. “You are going to die. You are dying. You are—”
He tried variations on it, and mental pictures. Sweat stood out on his forehead and he found himself trembling with the intensity of the effort. But the Roller went ahead with its investigation of the bush, as utterly unaffected as though Carson had been reciting the multiplication table.
So that was no good.
He felt a bit weak and dizzy from the heat and his strenuous effort at concentration. He sat down on the blue sand to rest and gave his full attention to watching and studying the Roller. By close study, perhaps, he could judge its strength and detect its weaknesses, learn things that would be valuable to know when and if they should come to grips.
It was breaking off twigs. Carson watched carefully, trying to judge just how hard it worked to do that. Later, he thought, he could find a similar bush on his own side, break off twigs of equal thickness himself, and gain a comparison of physical strength between his own arms and hands and those tentacles.
The twigs broke off hard; the Roller was having to struggle with each one, he saw. Each tentacle, he saw, bifurcated at the tip into two fingers, each tipped by a nail or claw. The claws didn’t seem to be particularly long or dangerous. No more so than his own fingernails, if they were let to grow a bit.
No, on the whole, it didn’t look too tough to handle physically. Unless, of course, that bush was made of pretty tough stuff. Carson looked around him and, yes, right within reach was another bush of identically the same type.
He reached over and snapped off a twig. It was brittle, easy to break. Of course, the Roller might have been faking! deliberately but he didn’t think so.
On the other hand, where was it vulnerable? Just how would he go about killing it, if he got the chance? He went back to studying it. The outer hide looked pretty tough. He’d need a sharp weapon of some sort. He picked up the piece of rock again. It was about twelve inches long, narrow, and fairly sharp on one end. If it chipped like flint, he could; make a serviceable knife out of it.
The Roller was continuing its investigations of the bushes. It rolled again, to the nearest one of another type. A little blue lizard, many-legged like the one Carson had seen on his side of the barrier, darted out from under the bush.
A tentacle of the Roller lashed out and caught it, picked it up. Another tentacle whipped over and began to pull legs off the lizard, as coldly and calmly as it had pulled twigs off the bush. The creature struggled frantically and emitted a shrill squealing sound that was the first sound Carson had heard here other than the sound of his own voice.
Carson shuddered and wanted to turn his eyes away. But he made himself continue to watch; anything he could learn about his opponent might prove valuable. Even this knowledge of its unnecessary cruelty. Particularly, he thought with a sudden vicious surge of emotion, this knowledge of its unnecessary cruelty. It would make it a pleasure to kill the thing, if and when the chance came.
He steeled himself to watch the dismembering of the lizard, for that very reason.
But he felt glad when, with half its legs gone, the lizard quit squealing and struggling and lay limp and dead in the Roller’s grasp.
It didn’t continue with the rest of the legs. Contemptuously it tossed the dead lizard away from it, in Carson’s direction. It arced through the air between them and landed at his feet.
It had come through the barrier! The barrier wasn’t there any more!
Carson was on his feet in a flash, the knife gripped tightly in his hand, and leaped forward. He’d settle this thing here and now! With the barrier gone—
But it wasn’t gone. He found that out the hard way, running head on into it and nearly knocking himself silly. He bounced back, and fell.
And as he sat up, shaking his head to clear it, he saw something coming through the air toward him, and to duck it, he threw himself flat again on the sand, and to one side. He got his body out of the way, but there was a sudden sharp pain in the calf of his left leg.
He rolled backward, ignoring the pain, and scrambled to his feet. It was a rock, he saw now, that had struck him. And the Roller was picking up another one now, swinging it back gripped between two tentacles, getting ready to throw again.
It sailed through the air toward him, but he was easily able to step out of its way. The Roller, apparently, could throw straight, but not hard nor far. The first rock had struck him only because he had been sitting down and had not seen it coming until it was almost upon him.
Even as he stepped aside from that weak second throw, Carson drew back his right arm and let fly with the rock that was still in his hand. If missiles, he thought with sudden elation, can cross the barrier, then two can play at the game of throwing them. And the good right arm of an Earthman—
He couldn’t miss a three-foot sphere at only four-yard range, and he didn’t miss. The rock whizzed straight, and with a speed several times that of the missiles the Roller had thrown. It hit dead center, but it hit flat, unfortunately, instead of point first.
But it hit with a resounding thump, and obviously it hurt. The Roller had been reaching for another rock, but it changed its mind and got out of there instead. By the time Carson could pick up and throw another rock, the Roller was forty yards back from the barrier and going strong.
His second throw missed by feet, and his third throw was short. The Roller was back out of range—at least out of range of a missile heavy enough to be damaging.
Carson grinned. That round had been his. Except—
He quit grinning as he bent over to examine the calf of his leg. A jagged edge of the stone had made a pretty deep cut, several inches long. It was bleeding pretty freely, but he didn’t think it had gone deep enough to hit an artery. If it stopped bleeding of its own accord, well and good. If not, he was in for trouble.
Finding out one thing, though, took precedence over that cut. The nature of the barrier.
He went forward to it again, this time groping with his hands before him. He found it; then holding one
hand against it, he tossed a handful of sand at it with the other hand. The sand went right through. His hand didn’t.
Organic matter versus inorganic? No, because the dead lizard had gone through it, and a lizard, alive or dead, was certainly organic. Plant life? He broke off a twig and poked it at the barrier. The twig went through, with no resistance, but when his fingers gripping the twig came to the barrier, they were stopped.
He couldn’t get through it, nor could the Roller. But rocks and sand and a dead lizard—
How about a live lizard? He went hunting, under bushes, I until he found one, and caught it. He tossed it gently against the barrier and it bounced back and scurried away across the blue sand.
That gave him the answer, in so far as he could determine it now. The screen was a barrier to living things. Dead or inorganic matter could cross it.
That off his mind, Carson looked at his injured leg again. The bleeding was lessening, which meant he wouldn’t need to worry about making a tourniquet. But he should find some water, if any was available, to clean the wound.
Water—the thought of it made him realize that he was getting awfully thirsty. He’d have to find water, in case this contest turned out to be a protracted one.
Limping slightly now, he started off to make a full circuit of his half of the arena. Guiding himself with one hand along the barrier, he walked to his right until he came to the curving sidewall. It was visible, a dull blue-gray at close range, and the surface of it felt just like the central barrier, He experimented by tossing a handful of sand at it, and the sand reached the wall and disappeared as it went through. The hemispherical shell was a force-field, too. But an opaque one, instead of transparent like the barrier.
He followed it around until he came back to the barrier, and walked back along the barrier to the point from which he’d started.
No sign of water.
Worried now, he started a series of zigzags back and forth between the barrier and the wall, covering the intervening space thoroughly.
No water. Blue sand, blue bushes, and intolerable heat. Nothing else.
It must be his imagination, he told himself angrily, that he was suffering that much from thirst. How long had he been here? Of course, no time at all, according to his own space-time frame. The Entity had. told him time stood still out there, while he was here. But his body processes went on here, just the same. And according to his body’s reckoning, how long had he been here? Three or four hours, perhaps. Certainly not long enough to be suffering seriously from thirst.
But he was suffering from it; his throat dry and parched. Probably the intense heat was the cause. It was hot! A hundred and thirty Fahrenheit, at a guess. A dry, still heat without the slightest movement of air.
He was limping rather badly, and utterly fagged out when he’d finished the futile exploration of his domain.
He stared across at the motionless Roller and hoped it was as miserable as he was. And quite possibly it wasn’t enjoying this, either. The Entity had said the conditions here were equally unfamiliar and equally uncomfortable for both of them. Maybe the Roller came from a planet where two hundred degree heat was the norm. Maybe it was freezing while he was roasting.
Maybe the air was as much too thick for it as it was too thin for him. For the exertion of his explorations had left him panting. The atmosphere here, he realized now, was not much thicker than that on Mars.
No water.
That meant a deadline, for him at any rate. Unless he could find a way to cross that barrier or to kill his enemy from this side of it, thirst would kill him, eventually.
It gave him a feeling of desperate urgency. He must hurry.
But he made himself sit down a moment to rest, to think.
What was there to do? Nothing, and yet so many things. The several varieties of bushes, for example. They didn’t look * promising, but he’d have to examine them for possibilities. And his leg—he’d have to do something about that, even without water to clean it. Gather ammunition in the form of rocks. Find a rock that would make a good knife.
His leg hurt rather badly now, and he decided that came first. One type of bush had leaves—or things rather similar to leaves. He pulled off a handful of them and decided, after examination, to take a chance on them. He used them to clean off the sand and dirt and caked blood, then made a pad of fresh leaves and tied it over the wound with tendrils from the same bush.
The tendrils proved unexpectedly tough and strong. They were slender, and soft and pliable, yet he couldn’t break them at all. He had to saw them off the bush with the sharp edge of a piece of the blue flint. Some of the thicker ones were over a foot long, and he filed away in his memory, for future reference, the fact that a bunch of the thick ones, tied together, would make a pretty serviceable rope. Maybe he’d be able to think of a use for rope.
Next, he made himself a knife. The blue flint did chip. From a foot-long splinter of it, he fashioned himself a crude , but lethal weapon. And of tendrils from the bush, he made himself a rope-belt through which he could thrust the flint knife, to keep it with him all the time and yet have his hands free.
He went back to studying the bushes. There were three other types. One was leafless, dry, brittle, rather like a dried tumbleweed. Another was of soft, crumbly wood, almost like punk. It looked and felt as though it would make excellent tinder for a fire. The third type was the most nearly woodlike. It had fragile leaves that wilted at a touch, but the Stalks, although short, were straight and strong.
It was horribly, unbearably hot.
He limped up to the barrier, felt to make sure that it was still there. It was.
He stood watching the Roller for a while. It was keeping a safe distance back from the barrier, out of effective stonethrowing range. It was moving around back there, doing something. He couldn’t tell what it was doing.
Once it stopped moving, came a little closer, and seemed to concentrate its attention on him. Again Carson had to fight off a wave of nausea. He threw a stone at it and the Roller retreated and went back to whatever it had been doing before.
At least he could make it keep its distance.
And, he thought bitterly, a devil of a lot of good that did him. Just the same, he spent the next hour or two gathering stones of suitable size for throwing, and making several neat -piles of them, near his side of the barrier.
His throat burned now. It was difficult for him to think about anything except water.
But he had to think about other things* About getting through that barrier, under or over it, getting at that red sphere and killing it before this place of heat and thirst killed him first.
The barrier went to the wall upon either side, but how high and how far under the sand?
For just a moment, Carson’s mind was too fuzzy to think out how he could find out either of those things. Idly, sitting there in the hot sand—and he didn’t remember sitting down —he watched a blue lizard crawl from the shelter of one bush to the shelter of another.
From under the second bush, it looked out at him.
Carson grinned at it. Maybe he was getting a bit punch-drunk, because he remembered suddenly the old story of the desert-colonists on Mars, taken from an older desert story of Earth— “Pretty soon you get so lonesome you find yourself talking to the lizards, and then not so long after that you find the lizards talking back to you—99
He should have been concentrating, of course, on how to kill the Roller, but instead he grinned at the lizard and said, “Hello, there.”
The lizard took a few steps toward him. “Hello,” it said.
Carson was stunned for a moment, and then he put back his head and roared with laughter. It didn’t hurt his throat to do so, either; he hadn’t been that thirsty.
Why not? Why should the Entity who thought up this nightmare of a place not have a sense of humor, along with the other powers he has? Talking lizards, equipped to talk back in my own language, if I talk to them— It’s a nice touch.
H
e grinned at the lizard and said, “Come on over.” But the lizard turned and ran away, scurrying from bush to bush until it was out of sight.
He was thirsty again.
And he had to do something. He couldn’t win this contest by sitting here sweating and feeling miserable. He had to do something. But what?
Get through the barrier. But he couldn’t get through it, or over it. But was he certain he couldn’t get under? I And come to think of it, didn’t one sometimes find water by digging? Two birds with one stone— ,
Painfully now, Carson limped up to the barrier and started digging, scooping up sand a double handful at a time. It was slow, hard work because the sand ran in at the edges and the deeper he got the bigger in diameter the hole had to be. How many hours it took him, he didn’t know, but he hit bedrock four feet down. Dry bedrock; no sign of water.
And the force-field of the barrier went down clear to the bedrock. No dice. No water. Nothing.
He crawled out of the hole and lay there panting, and then raised his head to look across and see what the Roller was doing. It must be doing something back there.
It was. It was making something out of Wood from the bushes, tied together with tendrils. A queerly shaped framework about four feet high and roughly square. To see it better, Carson climbed up onto the mound of sand he had (i excavated from the hole, and stood there staring.
There were two long levers sticking out of the back of it, one with a cup-shaped affair on the end of it. Seemed to be some sort of a catapult, Carson thought.
Sure enough, the Roller was lifting a sizable rock into the cup-shaped outfit. One of his tentacles moved the other lever up and down for a while, and then he turned the machine slightly as though aiming it and the lever with the stone flew up and forward.
The stone arced several yards over Carson’s head, so far away that he didn’t have to duck, but he judged the distance it had traveled, and whistled softly. He couldn’t throw a rock that weight more than half that distance. And even retreating to the rear of his domain wouldn’t put him out of range of that machine, if the Roller shoved it forward almost to the barrier.
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