| Author | Jack Vance |
| Publisher | Ultramar Editores, S.A. |
| Publisher Series | Grandes Éxitos Bolsillo, Ciencia Ficción |
| Series | Planet of Adventure |
| Translated by | Domingo Santos |
| Cover/Jacket Design by | Antoni Garcés |
| Layout Design | Fénix, Servicios Editoriales |
| Printed by | Gráficas Estella, S. A. |
| Format | Soft cover |
| Language | Spanish |
| Location | Spain |
| Copyright | 1968 |
| This Edition Published | 1986 |
| Pages / Font | 222 pages |
| ISBN | 84-7386-380-1 |
| DL (Spanish) | NA-1475-1985 |
| Volume Number | B-95 |
| Volume Number | Ciencia Ficción-25 |
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