A wrench that almost cracked his brain in two. A flicker of surprise, just before the contact broke, and then a fading flash of anger, and then nothing. Trevor fell down. He did not quite lose consciousness, but there was an ugly sickness in him and all his bones had turned to water. It seemed a long time before he could get to his feet again. Then he stood there shaking. There was something in this accursed valley. There was something or someone who could reach out through the sun-stones and take hold of a man's mind. It did that to the Korins and the hawks, and it had done it for a moment to him, and the horror of that alien grasp upon his brain was still screaming inside him. "But who--?" he whispered hoarsely. And then he knew that the word was wrong. "_What--?_" For it was not human, it couldn't be human, whatever had held him there wasn't man or woman, brute or human. It was something else, but what it was he didn't want to know, he only wanted to get out--out-- Trevor found that he had begun to run, bruising his shins against rocks. He got a grip on himself, forcing himself to stand still. His breath was coming in great gasps. He still had the sun-stone clenched in his sweating palm, and he had an almost irresistible desire to fling the thing away with all his strength. But even in the grip of alien horror a man could not throw away the goal of half a lifetime, and he held it, and hated it. He told himself that whatever it was that reached through the sun-stones could not use them unless they were against the forehead, close to the brain. The thing couldn't harm him if he kept it away from his head. A terrible thought renewed Trevor's horror. He thought of the Korins, the men who wore sun-stones set forever in their brows. Were they, always and always, in the icy, alien grip of that which had held him? And these were the masters of Jen's people? He forced that thought away. He had to forget everything except how to get free of this place. He started at once, still shaken. He couldn't go far before daylight, and he would have to lie up in the rocks through the day and try to make it to the valley wall the next night. He was glad when daylight came, the first fires of sunrise kindling the peaks that went above the sky. * * * * * It was at that moment that a shadow flickered, and Trevor looked up and saw the hawks. Many hawks. They had not seen him, they were not heeding the rocks in which he crouched. They were flying straight up the ravine, not circling or searching now but going with a sure purposefulness, back the way he had come. He watched them uneasily. There were more than he had ever seen together before. But they flew on up the ravine without turning, and were gone. "They weren't looking for me," he thought. "But...." Trevor should have felt relieved, but he didn't. His uneasiness grew and grew, stemming from an inescapable conclusion.