A collection of nine science fiction stories about children who have traveled in space. "If I Forget Thee, Oh Earth..." - short story by Arthur C. Clarke Berserker's Prey - short story by Fred Saberhagen Call Me Proteus - novelette by Edward Wellen Teddi - novelette by Andre Norton The Gambling Hell and the Sinful Girl - short story by Katherine MacLean Invasion Report - novelette by Theodore R. Cogswell A Start in Life - short story by Arthur Sellings Big Sword - novelette by Pauline Ashwell The Gift - short story by Ray Bradbury