The Secret Visitors
From Author Wars - https://authorwars.com/publications/the-secret-visitors-387852.html
Overview:
- Title: The Secret Visitors
- Author: James White
- Year: 1963
- Publisher: Digit Books
- Price: 2/6
- Pages: 158
- Binding: Paperback
- Type: Novel
- Title Reference: The Secret Visitors
- Notes: "This edition 1963" on copyright page.
Probably second printing.
Artist not credited.