Enemy in the Dark
From Author Wars - https://authorwars.com/books/enemy-in-the-dark-897679.html
Editions/Publications:
- Unknown. Perry Rhodan #85: Enemy in the Dark (Unknown, Kurt Mahr, Ace Books, $1.25, 212 pages, Paperback, MAGAZINE)
From Author Wars - https://authorwars.com/books/enemy-in-the-dark-897679.html