world, not unnatural in this day of growing estrangement between science and public ... but did they have a deeper reason than that? Suppose they did keep immortals in those underground rooms. A scientist was not ordinarily a good political technician. But he might think he could be. He might react emotionally against a public beginning to throw stones at his house and consider taking the reins ... for the people's own good, of course. A lot of misery had been caused the human race for its own alleged good. Or if the scientist knew how to live forever, he might not think Joe Smith or Carlos Ibáñez or Wang Yuan or Johannes Umfanduma good enough to share immortality with him. Radek took a long breath. The night air felt fresh and alive in his lungs after the tavern staleness. He was not currently married, but there was a girl with whom he was thinking seriously of making a permanent contract. He had friends, not lucent razor minds but decent, unassuming, kindly people, brave with man's old quiet bravery in the face of death and ruin and the petty tragedies of everyday. He liked beer and steaks, fishing and tennis, good music and a good book and the exhilarating strain of his work. He liked to live. Maybe a system for becoming immortal, or at least living many centuries, was not desirable for the race. But only the whole race had authority to make that decision. Radek smiled at himself, twistedly, and threw the cigaret away and got into the boat. Its engine murmured, sucking 'cast power; the riding lights snapped on automatically and he lifted into the sky. It was not much of a lead he had, but it was as good as he was ever likely to get. He set the autopilot for southwest Colorado and opened the jets wide. The night whistled darkly around his cabin. Against wan stars, he made out the lamps of other boats, flitting across the world and somehow intensifying the loneliness. Work to do. He called the main office in Dallas Unit and taped a statement of what he knew and what he planned. Then he dialed the nearest library and asked the robot for information on the Institute of Human Biology. There wasn't a great deal of value to him. It had been in existence for about 250 years, more or less concurrently with the Psychotechnic Institute and for quite a while affiliated with that