The Edge of the Unknown
From Author Wars - https://authorwars.com/publications/the-edge-of-the-unknown-87926.html
Overview:
- Title: The Edge of the Unknown
- Author: Arthur Conan Doyle
- Year: 1930
- Publisher: G. P. Putnam's Sons
- Price: $2.50
- Pages: vii+332
- Binding: Hardcover
- Type: Non-fiction
- Title Reference: The Edge of the Unknown
- Notes: Price from: https://www.arthur-conan-doyle.com/index.php?title=Conan_Doyle%27s_Beliefs; also on front flap seen at dustjackets.com.