by Flyboy707
Then it rolled forward again, but more cautiously. It stopped again, at the same place. It tried again, a few yards to one side.
There was a barrier there of some sort. It clicked, then, in Carson's mind, that thought projected by the Entity who had brought them there:
-- accident of physical strength will not completely decide the issue. There is a barrier.'
A force-field, of course. Not the Netzian Field, known to Earth science, for that glowed and emitted a crackling sound. This one was invisible, silent.
It was a wall that ran from side to side of the inverted hemisphere; Carson didn't have to verify that himself. The Roller was doing that, rolling sideways along the barrier, seeking a break in it that wasn't there.
Carson took half a dozen steps forward, his left hand groping out before him, and touched the barrier. It felt smooth, yielding, like a sheet of rubber rather than like glass, warm to his touch, but no warmer than the sand underfoot. And it was completely invisible, even at close range.
He dropped the stone and put both hands against it, pushing. It seemed to yield, just a trifle, but no farther than that trifle, even when he pushed with all his weight. It felt like a sheet of rubber backed up by steel. Limited resiliency, and then firm strength.
He stood on tiptoe and reached as high as he could and the barrier was still there.
He saw the Roller coming back, having reached one side of the arena. That feeling of nausea hit Carson again, and he stepped back from the barrier as it went by. It didn't stop.
But did the barrier stop at ground-level? Carson knelt down and burrowed in the sand; it was soft, light, easy to dig in. And two feet down the barrier was still there.
The Roller was coming back again. Obviously, it couldn't find a way through at either side.
There must be a way through, Carson thought, or else this duel is meaningless. --
The Roller was back now, and it stopped just across the barrier, only six feet away. It seemed to be studying him although, for the life of him, Carson couldn't find external evidence of sense organs on the thing. Nothing that looked like eyes or ears, or even a mouth. There was though, he observed, a series of grooves, perhaps a dozen of them altogether, and he saw two tentacles push out from two of the grooves and dip into the sand as though testing its consistency. These were about an inch in diameter and perhaps a foot and a half long.
The tentacles were retractable into the grooves and were kept there except when in use. They retracted when the thing rolled and seemed to have nothing to do with its method of locomotion; that, as far as Carson could judge, seemed to be accomplished by some shifting -- just how he couldn't imagine -- of its center of gravity.
He shuddered as he looked at the thing. It was alien, horribly different from anything on Earth or any of the life forms found on the other solar planets. Instinctively, he knew its mind was as alien as its body.
If it could project that almost tangible wave of hatred, perhaps it could read his mind as well, sufficiently for his purpose.
Deliberately, Carson picked up the rock that had been his only weapon, then tossed it down again in a gesture of relinquishment and raised his empty hands, palms up, before him.
He spoke aloud, knowing that although the words would be meaningless to the creature before him, speaking them would focus his own thoughts more completely upon the message.
'Can we not have peace between us?' he said, his voice strange in the stillness. 'The Entity who brought us here has told us what must happen if our races fight -- extinction of one and weakening and retrogression of the other. The battle between them, said the Entity, depends upon what we do here. Why cannot we agree to an eternal peace -- your race to its galaxy, we to ours?'
Carson blanked out his mind to receive a reply.
It came, and it staggered him back, physically. He recoiled several steps in sheer horror at the intensity of the lust-to-kill of the red images projected at him. For a moment that seemed eternity he had to struggle against the impact of that hatred, fighting to clear his mind of it and drive out the alien thoughts to which he had given admittance. He wanted to retch.
His mind cleared slowly. 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 grin. 'If I got your answer straight, peace doesn't appeal to you.' And, because he was, after all, a young man and couldn't resist the impulse to be dramatic, he added, 'To the death!'
But his voice, in that utter silence, sounded 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 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. 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. The future of humanity depended upon him. It was an awful thing to realize. 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 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 thought 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 dizzy from the heat and his strenuous effort at concentration. He sat down on the blue sand and gave his full attention to studying the Roller. By 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. 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, or no more so than his own fingernails, if they were left to grow a bit.
No, on the whole, it didn't look too hard to handle physically. Unless, of course, that bush was made of pretty tough stuff. Carson looked round; within reach was another bush of identically the same type.
He 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? 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 as it had pulled twigs off the bush. The creature struggled frantically and emitted a shrill squealing that was the first sound Carson had heard here, other than the sound of his own voice.
Carson made himself continue to watch; anything he could learn about his opponent might prove valuable, even knowledge of its unnecessary cruelty -- particularly, he thought with sudden emotion, knowledge of its unnecessary cruelty. It would make it a pleasure to kill the thing, if and when the chance came.
With half its legs gone, the lizard stopped squealing and lay limp 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. The lizard arced through the air between them and landed at his feet.
It had come through the barrier! The barrier wasn't there anymore! Carson was on his feet in a flash, the knife gripped tightly in his hand, leaping 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.
As he sat up, shaking his head to clear it, he saw something coming through the air towards him, and threw himself flat again on the sand, 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 backwards, 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, swinging it back gripped between two tentacles, ready to throw again.
It sailed through the air towards him, but he was able to step out of its way. The Roller, apparently, could throw straight, but neither 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 elation, can cross the barrier, then two can play at the game of throwing them.
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 hit flat instead of point first. But it hit with a resounding thump, and obviously hurt. The Roller had been reaching for another rock, but 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 out of range of any missile heavy enough to be damaging.
Carson grinned. That round had been his.
He stopped grinning as he bent over to examine the calf of his leg. A jagged edge of the stone had made a 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. 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 until he found one, and caught it. He tossed it against the barrier and it bounced back and scurried away across the blue sand.
That gave him the answer, so far as he could determine it now. The screen was a barrier to living things. Dead or inorganic matter could cross it.
With 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 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-grey 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 round 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 that he was suffering that much from thirst. How long had he been there? 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. According to his body's reckoning, how long had he been here? Three or four hours, perhaps. Certainly not long enough to be suffering from thirst.
Yet he was suffering from it; his throat was 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 when he finished the futile exploration of his domain.
He stared across at the motionless Roller and hoped it was as miserable as he was. The Entity had said the conditions here were equally unfamiliar and 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, was not much thicker than 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, 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 pliable, yet he couldn't break them at all, and had to saw them off the bush with the sharp edge of 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 thin
k 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 wood-like. It had fragile leaves that wilted at the 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 from the barrier, out of effective stone-throwing 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; 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 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 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.
The barrier went to the wall upon either side, but how high, and how far under the sand?
For 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.