Contents (view Concise Listing)

• 2 • Eres el centro del universo • novelette by Judith Merril (trans. of Dead Center 1954)
• 29 • Una bestia feliz • short story by Theodore Sturgeon (trans. of The Hurkle Is a Happy Beast 1949)
• 38 • Superioridad • short story by Arthur C. Clarke (trans. of Superiority 1951)
• 49 • El cuidador del tiempo • short story by Oliver La Farge (trans. of The Time Watcher 1953)
• 57 • Otro • [John the Balladeer] • short story by Manly Wade Wellman (trans. of One Other 1953)
• 73 • El dios sediento • short story by Margaret St. Clair (trans. of Thirsty God 1953) [as by Idris Seabright]
• 83 • Música de la esfera • novelette by William Morrison (trans. of Music of the Sphere 1954)
• 108 •
  El peatón^?El peaton
  • short story by Ray Bradbury (trans. of The Pedestrian 1951)
• 113 • Tres deseos • short story by Theodore R. Cogswell (trans. of Threesie)