you match that?" They could. In a matter of seconds the three others were similarly enlensed. They had not previously perceived the need, but after Kat had pointed it out to them by demonstrating the manner of its satisfaction, their acquisition of full knowledge had been virtually instantaneous. "Or this, then." Kat's Lens disappeared. So did the other three. Each knew that no hint of this knowledge or of this power should ever be revealed; each knew that in any moment of stress the Lens of Civilization could be and would be hers. "Logic, then, and by reason, not by chance." Kat changed her tactics. "I still get Dad. Everybody knows who works best with whom. You, Con, have tagged around after Worsel all your life. You used to ride him instead of a horse—" "She still does," Kay snickered. "He pretty nearly split her in two a while ago in a seven-gravity pull-out, and she almost broke a toe when she kicked him for it." "Worsel is nice," Con defended herself vigorously. "He's more human than most people, and more fun, as well as having infinitely more brains. And you can't talk, Kay—what anyone can see in that Nadreck, so cold-blooded that he freezes you even through armor at twenty feet—you'll get as cold and hard as he is if you don't—" "And every time Cam gets within five hundred parsecs of Tregonsee she goes into silences with him, contemplating raptly the whichnesses of the why," Kathryn interrupted, forestalling recriminations. "So you see, by the process of elimination, Dad has got to be mine." Since they could not all have him it was finally agreed that Kathryn's claim would be allowed and, after a great deal of discussion and argument, a tentative plan of action was developed. In due course, the Dauntless landed upon Tellus. The Kinnisons went to Wentworth Hall, the towering, chromium-and-glass home of the Tellurian cadets of the Galactic Patrol. They watched the impressive ceremonies of graduation. Then, as the new Lensmen marched out to the magnificent cadences of "Our Patrol," the Gray Lensman, leaving his wife and daughters to their own devices, made his way to his Tellurian office in Prime Base. "Lensman Kinnison, sir, by appointment," his secretary announced, and as Kit strode in Kinnison stood up and came to attention. "Christopher Kinnison of Klovia, sir, reporting for duty." Kit saluted