The Secret of ZI
From Author Wars - https://authorwars.com/books/the-secret-of-zi-4287.html
Overview:
- Title: The Secret of ZI
- Author: Kenneth Bulmer
- Year: 1958
- Type: Novels
Variant Titles:
Editions/Publications:
- Unknown. Beyond the Vanishing Point / The Secret of ZI (Unknown, Kenneth Bulmer, Ace Books, $0.35, 95+161 pages, dos, Omnibus)
- Unknown. The Secret of ZI (Unknown, Kenneth Bulmer, Digit Books, 2/6, 156 pages, Paperback, Novel)