On the Gem Planet, copyright 1963 by Galaxy Publishing Corp.
The Game of Rat and Dragon, copyright 1955 by Galaxy Publishing Corp.
The Lady who Sailed The Soul, copyright 1960 by Galaxy Publishing Corp.
The Crime and the Glory of Commander Suzdal, copyright 1964 by Ziff-Davis Publishing Co.
A Planet Named Shayol, copyright 1961 by Galaxy Publishing Corp.
© the Estate of Paul Linebarger 1966. Published by arrangement with Scott Meredith Literary Agency, Inc.
© Ediciones Dronte, 1971.
PORTADA DE
Enrique Torres
ILUSTRACIONES DE
Ramón de la Fuente