Synopsis
History
First publication: Ace Double #G-632, with Nebula Alert by A. Bertram Chandler, Ace Books, 1967
Review
Videos
We have the story in these editions:
The Rival Rigelians / Nebula Alert, paperback, Ace Books, 1967-00-00
All of the stories in the United Planets series:
Adaptation
Ultima Thule
Hatchetman
Fiesta Brava
Psi Assassin
1 Planetary Agent X
2 Dawnman Planet
3 The Rival Rigelians
4 Code Duello
5 Amazon Planet
6 Section G: United Planets
7 Brain World
