would be an experience to remember. In this dry air, the Martian's skin would keep perfectly well.

He felt the paralysis creep up on him, the waning of heartbeat and lung action. His senses and mind were still alive, and he grew aware that complete relaxation has its unpleasant aspects. Oh, well—he'd won. He'd killed the wiliest game with his own hands.

Presently Kreega sat up. He felt himself gingerly. There seemed to be a rib broken—well, that could be fixed. He was still alive. He'd been choked for a good ten minutes, but a Martian can last fifteen without air.

He opened the sleeping bag and got Riordan's keys. Then he limped slowly back to the rocket. A day or two of experimentation taught him how to fly it. He'd go to his kinsmen near Syrtis. Now that they had an Earthly machine, and Earthly weapons to copy—

But there was other business first. He didn't hate Riordan, but Mars is a hard world. He went back and dragged the Earthling into a cave and hid him beyond all possibility of human search parties finding him.

For a while he looked into the man's eyes. Horror stared dumbly back at him. He spoke slowly, in halting English: "For those you killed, and for being a stranger on a world that does not want you, and against the day when Mars is free, I leave you."

Before departing, he got several oxygen tanks from the boat and hooked them into the man's air supply. That was quite a bit of air for one in suspended animation. Enough to keep him alive for a thousand years.

 Prev. P 16/16