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 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 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.
From under the second bush, it looked out at him.
Carson grinned at it, recalling the old story of the desert-colonists on Mars, taken from an older 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.…”
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 towards 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 humour, along with the other powers he had? Talking lizards, equipped to talk back in my own language, if I talk to them—it’s a nice touch.
He 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 had to get past the barrier. He couldn’t get through it, or over it, but was he certain he couldn’t get under it? And come to think of it, didn’t one sometimes find water by digging?
Painfully now, Carson limped up to the barrier and started digging, scooping up sand a double handful at a time. It was slow 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 with no sign of water.
The force-field of the barrier went down clear to the bedrock.
He crawled out of the hole and lay there panting, then raised his head to look across and see what the Roller was doing.
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 on to the mound of sand he had excavated 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. Seemed to be some sort of a catapult, Carson thought.
Sure enough, the Roller was lifting a sizable rock into the cup-shape. One of his tentacles moved the other lever up and down for a while, and then he turned the machine slightly, aiming it, and the lever with the stone flew up and forward.
The stone curved several yards over Carson’s head, so far away that he didn’t have to duck, but he judged the distance it had travelled, 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 pushed it forward to the barrier.
Another rock whizzed over, not quite so far away this time.
Moving from side to side along the barrier, so the catapult couldn’t bracket him, he hurled a dozen rocks at it. But that wasn’t going to be any good, he saw. They had to be light rocks, or he couldn’t throw them that far. If they hit the framework, they bounced off harmlessly. The Roller had no difficulty, at that distance, in moving aside from those that came near it.
Besides, his arm was tiring badly. He ached all over.
He stumbled to the rear of the arena. Even that wasn’t any good; the rocks reached back there, too, only there were longer intervals between them, as though it took longer to wind up the mechanism, whatever it was, of the catapult.
Wearily he dragged himself back to the barrier again. Several times he fell and could barely rise to his feet to go on. He was, he knew, near the limit of his endurance. Yet he didn’t dare stop moving now, until and unless he could put that catapult out of action. If he fell asleep, he’d never wake up.
One of the stones from it gave him the glimmer of an idea. It hit one of the piles of stones he’d gathered near the barrier to use as ammunition and struck sparks.
Sparks! Fire! Primitive man had made fire by striking sparks, and with some of those dry crumbly bushes as tinder…
A bush of that type grew near him. He uprooted it, took it over to the pile of stones, then patiently hit one stone against another until a spark touched the punklike wood of the bush. It went up in flames so fast that it singed his eyebrows and was burned to an ash within seconds.
But he had the idea now, and within minutes had a little fire going in the lee of the mound of sand he’d made. The tinder bushes started it, and other bushes which burned more slowly kept it a steady flame.
The tough tendrils didn’t burn readily; that made the fire-bombs easy to rig and throw; a bundle of faggots tied about a small stone to give it weight and a loop of the tendril to swing it by.
He made half a dozen of them before he lighted and threw the first. It went wide, and the Roller started a quick retreat, pulling the catapult after him. But Carson had the others ready and threw them in rapid succession. The fourth wedged in the catapult’s framework and did the trick. The Roller tried desperately to put out the spreading blaze by throwing sand, but its clawed tentacles would take only a spoonful at a time and its efforts were ineffectual. The catapult burned.