Before returning to the Air-Command base at noon, Dirrul sought out Paul Sorgel and reported that Glenna and Hurd were safely on their way to Vinin. Apologetically, he mentioned Dr. Kramer's invitation, expecting to elicit Sorgel's scorn. Instead the Vininese agent was enthusiastic. "Wonderful, Eddie!" he said. "Engineer it so they'll ask you back. We've never got one of our people in with the older science crowd before. Feel them out--we might pick up some converts. I won't need you at the next few meetings of the Movement--they'll be largely reorganizational, you know. I've been reading over Glenna's notes on the Plan. With one or two modifications we should be able to carry it out." At eight-thirty that evening Dirrul was admitted to Dr. Kramer's apartment. He was neither overwhelmed by the professor's excessive courtesy nor impressed by the other guests. They were from the faculty of the Advanced Air University, elderly, respected and distinguished, names known for a generation everywhere in the Planetary Union. To them, Edward Dirrul was merely a curiosity, a live specimen mounted for analysis. He had criticised their system. They intended to wring out the strands of his motivation, classify them, speculate and theorize upon them--and perhaps, ultimately, do the whole thing up as a monograph. Dirrul knew why Kramer had selected him for study rather than any of the current crop of university students who held similar views. A product of the educational philosophy of the Planetary Union, Dirrul was thoroughly adjusted and decidedly aware of both his own abilities and shortcomings. He was, first of all, gifted in the use of abstractions and generalities. In rare combination with this flair he had superior mechanical intelligence and a talent for expressive verbalization. He dealt easily in the subtle skills of logic. If he set his mind to it, he could erect absolute proofs of diametrically opposed truths and few minds could detect the delicately concealed flaws in the reasoning. On the negative side of the scale was Dirrul's complete lack of psycho-biological intelligence, or a sense of scientific semantics. Neither to him seemed important. He missed them not at all and resented the legal requirements that forced him to take Dr. Kramer's course before he could qualify as a space-pilot. The papers he had written for the professor were beautifully constructed patterns of logic, cast in well-turned phrases. They had clarified the criticism which others put inarticulately. It was the precision of his argument that disturbed Dr. Kramer and his faculty friends.