Description:

Relatos:
- La Leyenda y la Química (The Legend and the Chemistry) * Arthur Sellings
- La Gran Rosquilla Cósmica (The Great Cosmic Donut of Life) * Ray Nelson
- Punto de Inflexión (Turning Point) * Arthur Porges
- La Cueva (The Cave) * Yevgeny Zamyatin
- Pater Uno, Pater Dos (Pater One, Pater Two) * Patrick Meadows
- Actitudes (Attitudes) * "James H. Schmitz"
- La Patrulla del Sueño (Dream Patrol) * Charles W. Runyon