“Untimely Interruption,” in Perry Rhodan 54: The Blue Dwarfs, edited by
Forrest J. Ackerman (Ace Books, September 1974) [from the US Perry Rhodan
anthology series].
VARIANTS
Debut. “Untimely Interruption,” in Perry Rhodan 54: The Blue Dwarfs, edited by Forrest J. Ackerman (Ace Books, September 1974) [from the US Perry Rhodan anthology series].
1 English variant