There was no sound except the thudding of his own heart, the harsh rasp of his own breath, locked inside the stinking metal skin of his suit. Otherwise ... no air, no heat, no water or life or work of man, only a granite nakedness spinning through space out beyond Mars.

Stooping, awkward in the clumsy armor, he put the transparent plastic of his helmet to the ground. Its cold bit at him even through the insulating material. He might be able to hear the footsteps of his murderer conducted through the ground.

Stillness answered him. He gulped a heavy lungful of tainted air and rose. The other might be miles away yet, or perhaps very close, catfooting too softly to set up vibrations. A man could do that when gravity was feeble enough.

The stars blazed with a cruel wintry brilliance, over him, around him, light-years to fall through emptiness before he reached one. He had been alone among them before; he had almost thought them friends. Sometimes, on a long watch, a man found himself talking to Vega or Spica or dear old Beetle Juice, murmuring what was in him as if the remote sun could understand. But they didn't care, he saw that now. To them, he did not exist, and they would shine carelessly long after he was gone into night.

He had never felt so alone as now, when another man was on the asteroid with him, hunting him down.

Bo Jonsson looked at the wrench in his hand. It was long and massive, it would have been heavy on Earth, but it was hardly enough to unscrew the stars and reset the machinery of a universe gone awry. He smiled stiffly at the thought. He wanted to laugh too, but checked himself for fear he wouldn't be able to stop.

Let's face it, he told himself. You're scared. You're scared sweatless. He wondered if he had spoken it aloud.

There was plenty of room on the asteroid. At least two hundred square miles, probably more if you allowed for the rough surface. He could skulk around, hide ... and suffocate when his tanked air gave out. He had to be a hunter, too, and track down the other man, before he died. And if he found his enemy, he would probably die anyway.

He looked about him. Nothing. No sound, no movement, nothing but the streaming of the constellations as the asteroid spun. Nothing had ever moved here, since the beginning of time when moltenness congealed into death. Not till men came and hunted each other.

Slowly he forced himself to move. The thrust of his foot sent him up, looping over the cliff to drift down like a dead leaf in Earth's October. Suit, equipment, and his own body, all together, weighed only a couple of pounds here. It was ghostly, this soundless progress over fields which had never known life. It was like being dead already.