Doubleday, 1974, hardcover. First published in Britain the previous year. STORIES: Marooned Off Vesta (1939); Nightfall (1941); The C-Chute (1951); The Martian Way (1952); The Deep (1952); The Fun They Had (1951); The Last Question (1956); The Dead Past (1956); The Dying Night (1956); Anniversary (1959); The Billiard Ball (1967); Mirror Image (1972).