Spear? Well, he could make that. It would be useless at any distance, but would be a handy thing at close range, if he ever got to close range. Making one would help keep his mind from wandering, as it was beginning to do.

He was still beside one of the piles of stones. He sorted through it until he found one shaped roughly like a spearhead. With a smaller stone he began to chip it into shape, fashioning sharp shoulders on the sides so that if it penetrated it would not pull out again like a harpoon. A harpoon was better than a spear, maybe, for this crazy contest. If he could once get it into the Roller, and had a rope on it, he could pull the Roller up against the barrier and the stone blade of his knife would reach through that barrier, even if his hands wouldn’t.

The shaft was harder to make than the head, but by splitting and joining the main stems of four of the bushes, and wrapping the joints with the tough but thin tendrils, he got a strong shaft about four feet long, and tied the stone head in a notch cut in one end. It was crude, but strong.

With the tendrils he made himself twenty feet of line. It was light and didn’t look strong, but he knew it would hold his weight and to spare. He tied one end of it to the shaft of the harpoon and the other end about his right wrist. At least, if he threw his harpoon across the barrier, he’d be able to pull it back if he missed.

He tried to stand up, to see what the Roller was doing, and found he couldn’t get to his feet. On the third try, he got as far as his knees and then fell flat again.

“I’ve got to sleep,” he thought. “If a showdown came now, I’d be helpless. He could come up here and kill me, if he knew. I’ve got to regain some strength.”

Slowly, painfully, he crawled back from the barrier.

The jar of something thudding against the sand near him wakened him from a confused and horrible dream to a more confused and horrible reality, and he opened his eyes again to blue radiance over blue sand.

How long had he slept? A minute? A day?

Another stone thudded nearer and threw sand on him. He got his arms under him and sat up. He turned round and saw the Roller twenty yards away, at the barrier.