Gray Lensman by E.E. Smith — Read

Although Kinnison left Bronseca, abandoning that line of attack completely -- thereby, it might be thought, forfeiting all the work he had theretofore done upon it -- the Patrol was not idle, nor was Prellin-Wembleson of Cominoche, the Boskonian Regional Director, neglected. Lensman after Lensman came and went, unobtrusively, but grimly determined. There came Tellurians, Manarkans, Borovans; Lensmen of every human breed, any of whom might have been, as far as the minions of Boskone knew, the one foe whom they had such good cause to fear.

Rigellian Lensmen came also, and Poenians, and Ordoviks; representatives, in fact, of almost every available race possessing any type or kind of extrasensory perception, came to test out their skill and cunning. Even Worsel of Velantia came, hurled for days his mighty mind against those screens, and departed.