For a second or so it was not so bad. Another Eddorian came in, suspicious and on guard. Kit blasted him down--learning still more in the process--but he could not prevent him from radiating a frantic and highly revealing call for help. And although the other Eddorians could scarcely realize that such an astonishing thing as a physical invasion had actually happened, that fact neither slowed them down nor made their anger less violent. When Kit flashed past his friendly fortress he was taking about all that he could handle, and more and more Eddorians were piling on. At the fourth screen it was worse; at the third he reached what he was sure was his absolute ceiling. Nevertheless, from some hitherto unsuspected profundity of his being, he managed to draw enough reserve force to endure that hellish punishment for a little while longer. Hang on, Kit, hang on! Only two more screens to go. Maybe only one. Maybe less. Living Eddorian brains, and not mechanical generators, are now handling all the screens, of course; but if Mentor's visualization is worth a tinker's damn, he must have that first screen knocked down by this time and must be working on the second. Hang on, Kit, and keep on slugging! And grimly--doggedly--toward the end sheerly desperately--Christopher Kinnison, eldest Child of the Lens, hung on and slugged. XXIII. If the historian has succeeded in his attempt to describe the characters and abilities concerned, it is not necessary to enlarge upon what Kit went through in escaping Eddore. If he has not succeeded, enlargement would be useless. Therefore, it is enough to say that the young Lensman, by dint of calling up and putting out everything he had, hung on long enough and slugged his way through. Mentor's visualization had been sound. The Eddorian guardians had scarcely taken over the first screen when it was overwhelmed by a tremendous wave of Arisian thought. It is to be remembered, however, that this was the second time that the massed might of Arisia had been thrown against Eddore's defenses, and the Boskonians had learned much, during the intervening years, from their exhaustive analyses of the offensive and defensive techniques of that earlier conflict. Thus the Arisian drive was practically stopped at the second zone of defense as Kit approached it. The screen was wavering, shifting; yielding stubbornly wherever it must and springing back into place whenever it could. Under a tremendous concentration of Arisian force the screen weakened in a limited area directly ahead of the hurtling speedster. A few beams lashed out aimlessly, uselessly--if the Eddorians could not hold their main screens proof against the power of the Arisian attack, how could they protect such minor things as gunners' minds? The little ship flashed through the weakened barrier and into the center of a sphere of impenetrable, impermeable Arisian thought.