Almost any phenomenon can be used—or act—for good or ill. Mutation usually brings ill—but it also brings greatness. Change can go any direction. Illustrated by Douglas   ungrily , the cradled vessel's great steel nose pointed up to the distant stars. She was the Cosmos XII , newest and sleekest of the Space Service's rapidly-expanding wing of interstellar scout ships, and she was now ready for operational work. Major Lance Cooper, a big man with space-tanned features, stood in the shadow of the