In theory, any citizen of the Hegemony could become an officer, and any officer could become a member of the Permanent Headquarters Staff. Actually, a much greater preference was given to the children of officers. Examinations were given periodically for the purpose of recruiting new members for the elite officers' corps, and any citizen could take the examination--once. But the tests were heavily weighted in favor of those who were already well-versed in matters military, including what might be called the "inside jokes" of the officers' corps. A common trooper had some chance of passing the examination; a civilian had a very minute chance. A noncommissioned officer had the best chance of passing the examination, but there were age limits which usually kept NCO's from getting a commission. By the time a man became a noncommissioned officer, he was too old to be admitted to the officers training schools. There were allowances made for "extraordinary merit," which allowed common troopers or upper-grade NCO's to be commissioned in spite of the general rules, and an astute man could take advantage of those allowances. Ability could get a man up the ladder, but it had to be a particular kind of ability. * * * * * During his sojourn as a "guest" of the Kerothi, MacMaine had made a point of exploring the history of the race. He knew perfectly well that the histories he had read were doctored, twisted, and, in general, totally unreliable in so far as presenting anything that would be called a history by an unbiased investigator. But, knowing this, MacMaine had been able to learn a great deal about the present society. Even if the "history" was worthless as such, it did tell something about the attitudes of a society that would make up such a history. And, too, he felt that, in general, the main events which had been catalogued actually occurred; the details had been blurred, and the attitudes of the people had been misrepresented, but the skeleton was essentially factual. MacMaine felt that he knew what kind of philosophy had produced the mental attitudes of the Court he now faced, and he felt he knew how to handle himself before them. Half a dozen paces in front of the great desk, the color of the floor tiling was different from that of the rest of the floor. Instead of a solid blue, it was a dead black. Tallis, who was slightly ahead of MacMaine, came to a halt as his toes touched the edge of the black area. _Uh-oh! a balk line_, MacMaine thought. He stopped sharply at the same point. Both of them just stood there for a full minute while they were carefully inspected by the members of the Court. Then the High Commander gestured with one hand, and the officer to his left leaned forward and said: "Why is this one brought before us in the uniform of an officer, bare of any insignia of rank?" It could only be a ritual question, MacMaine decided; they must know why he was there.