Mystery on Planetoid Ten
From Author Wars - https://authorwars.com/books/mystery-on-planetoid-ten-838169.html
Editions/Publications:
- Unknown. Amazing Stories, July 1941 (Unknown, Magarian, Ziff-Davis Publishing Company, $0.20, 148 pages, pulp, MAGAZINE)
- Unknown. Science Fiction Classics #21 (Unknown, Magarian, Pulp Tales Press, $12.95, 150 pages, Trade Paperback, Anthology)