But Kieran had a certain intellectual honesty, and after a while he admitted to himself that neither the beauty nor the romance of it was what made this life so attractive to him. It was the fact that he was far away from Earth. He did not even have to look at Earth, for nearly all geophysical research was taken care of by Wheels Two and Three that circled the mother planet. He was almost completely divorced from all Earth's problems and people. Kieran liked people, but had never felt that he understood them. What seemed important to them, all the drives of ordinary day-to-day existence, had never seemed very important to him. He had felt that there must be something wrong with him, something lacking, for it seemed to him that people everywhere committed the most outlandish follies, believed in the most incredible things, were swayed by pure herd-instinct into the most harmful courses of behavior. They could not all be wrong, he thought, so he must be wrong--and it had worried him. He had taken partial refuge in pure science, but the study and then the teaching of astrophysics had not been the refuge that Wheel Five was. He would be sorry to leave the Wheel when his time was up. And he was sorry, when the day came. The others of the staff were already out in the docking lock in the rim, waiting to greet the replacements from the ferry. Kieran, hating to leave, lagged behind. Then, realizing it would be churlish not to meet this young Frenchman who was replacing him, he hurried along the corridor in the big spoke when he saw the ferry coming in. He was two-thirds of the way along the spoke to the rim when it happened. There was a tremendous crash that flung him violently from his feet. He felt a coldness, instant and terrible. He was dying. He was dead. The ferry had been coming in on a perfectly normal approach when the tiny something went wrong, in the ship or in the judgment of the pilot. Its drive-rockets suddenly blasted on full, it heeled over sharply, it smashed through the big starboard spoke like a knife through butter. Wheel Five staggered, rocked, and floundered. The automatic safety bulkheads had all closed, and the big spoke--Section T2--was the only section to blow its air, and Kieran was the only man caught in it. The alarms went off, and while the wreckage of the ferry, with three dead men in it, was still drifting close by, everyone in the Wheel was in his pressure-suit and emergency measures were in full force. * * * * *