velocity the field imparts. In the infinitesimal fraction of a second required for the field to finish its contraction after leaving him, the ship had traveled literally thousands of miles. In the slightly greater fraction of a second required for it to expand again, it had moved on some millions of miles. By the time Stan's mind had actually grasped the fact that he was alone in space, the ship from which he had separated himself was probably fifty or sixty millions of miles away. He was absolutely secure against recapture, of course. If his escape went unnoticed for even half a minute, it would take all the ships of all the Space Guard a thousand years to search the volume of space in which one small space-suited figure might be found. And it was unlikely that his escape would be noticed for hours. He was very terribly alone. A dwarf white sun glowed palely, many, many millions of miles away. Stars gazed at him incuriously, separated by light-centuries of space. He started the minute gyroscopes that enabled him to steer the skid. He started in toward the sun. He had a planet to find and land on. Of course, Rob Torren could simply have contrived his escape to emptiness so that he might die and shrivel in the void, and never, never, never through all eternity be found again. But somehow, Stan had a vast faith in the hatred which existed between the two of them. It was two days later when he approached the solitary planet of Khor Alpha. The air in his space suit had acquired that deadly staleness which is proof that good air is more than merely a mixture of oxygen and nitrogen. He felt the sluggish discomfort which comes of bottled, repurified breathing-mixture. And as the disk of the planet grew large, he saw little or nothing to make him feel more cheerful. The planet rotated as he drew near, and it seemed to be absolutely featureless. The terminator—the shadow line as sunlight encroached on the planet's night side—was a perfect line. There were, then, no mountains. There were no clouds. There seemed to be no vegetation. There was, though, a tiny polar icecap—so small that at first he did not discover it. It was not even a dazzling white, but a mere whitishness where a polar cap should be, as if it were hoarfrost instead of ice. He went slanting down to match the planet's ground speed in his approach. Astride the tiny space skid, he looked rather like an improbable witch astride an incredible broomstick. And he was very, very tired.