The Age of the Troika - essay by Isaac Asimov Flight to Forever - novella by Poul Anderson The Martian Way - novelette by Isaac Asimov Second Game - novelette by Charles V. De Vet and Katherine MacLean Dark Benediction - novella by Walter M. Miller, Jr. The Midas Plague - novella by Frederik Pohl The Oceans Are Wide - novella by Frank M. Robinson And Then There Were None - novella by Eric Frank Russell (variant of... And Then There Were None) Baby Is Three - novella by Theodore Sturgeon Firewater - novella by William Tenn The Alley Man - novella by Philip José Farmer