The Dark Tower, an eerie, highly entertaining fragment of a novel, finds five men gathered secretly in a room at Cambridge University to witness the workings of the chronoscope, an invention that "does to time what the telescope does to space." The resulting sequence of bizarre events involves Dr. Elwin Ransom, familiar to readers of Lewis's Out of the Silent Planet. "The Man Born Blind," a short story, dramatizes the relationship between appearance and reality. Previously published work collected here includes a retelling of a Greek myth entitled "After Ten Years" and three skillful science fiction tales. A collection of Lewis's complete shorter fiction, including two previously unpublished works.