BY WILLIAM MORRISON ILLUSTRATED BY VAN DONGEN To all who didn't know him, Curt George was a mighty hunter and actor. But this time he was up against others who could really act, and whose business was the hunting of whole worlds. There were thirty or more of the little girls, their ages ranging apparently from nine to eleven, all of them chirping away like a flock of chicks as they followed the old mother hen past the line of cages. "Now, now, girls," called Miss Burton cheerily. "Don't scatter.