Obviously, Tremaine could not have gone on living after that. Tremaine was pretty much of an extrovert who loved people and wanted them all to advance rapidly. Wanniston was self-centered and introverted and wanted nothing more than to run the show himself. Tremaine could not live in a world alone--and with his energized brain, he was in a world alone. Gerd Lel Rayne could be his only friend, he and Gaya, and their friendship must necessarily be one kept under cover. But Wanniston could, did, and liked a world alone. He had no intention of letting the world know. That would be disastrous. The world would rush to the machine, to partake of its offerings, in order to gain the benefit of the increased intelligence. They would not count the cost--and the cost was great. The machine produced sterility. So much for general usage. But for individual usage? That was another matter. He would use it for himself alone and forget progeny. Wanniston wanted to run the show. He felt entitled to have a hand in it, for he knew that he was better equipped, mentally, to handle the complex problems of running the world than many others. He was aware of man's weaknesses. They were all glad to be just human, but it took a higher intellect to understand that there was something better than just being human. Wanniston knew that, and Wanniston was going to do something about it. Wanniston, by knowing that there was something higher, and by being just that slight bit higher himself, was going to go all the way and make himself Gerd Lel Rayne's mental equal. He believed that he might even surpass the 260-odd I.Q. possessed by the emissary of the Galactic Ones, for he knew that Rayne was merely the lowest link in a long chain that led right up to the Grand Galactic Council. "Wait until you see me kid brudder," grinned Wanniston. His lips were thin as he grinned, and there was more sardonicism than genuine humor in the situation. * * * * * Gerd Lel Rayne smiled amicably as Wanniston entered. "Good morning," he said with a booming, easy voice. The emissary was a large man, a living embodiment of poise and good will. "I sent for you, John. You're heading for trouble." "It's my trouble," answered Wanniston. Rayne shook his massive head slowly. "Not entirely. I'm concerned." "It's my trouble and, if it blows up in my face, it's my grief." Again there came that shake of the head. "No, Wanniston, you cannot shake yourself loose like that. You are not alone. I failed my superiors when I told you the tale of Andy Tremaine. I thought that the knowledge of what had happened to another who tried the same thing would deter you. Remember?" "Yes, I remember. I asked you why it wouldn't be possible to energize the human brain so that it could use the whole thing instead of the usual ten percent. You countered with the yarn about Tremaine." "Time alone will fill the brain, John. No machine will do it properly. It is forced." "So?"