Valley of Invisible Men
From Author Wars - https://authorwars.com/books/valley-of-invisible-men-87307.html
Overview:
- Title: Valley of Invisible Men
- Author: Edmond Hamilton
- Year: 1939
- Type: Short Fiction
Editions/Publications:
- Unknown. Amazing Stories, March 1939 (Unknown, Edmond Hamilton, Ziff-Davis Publishing Company, $0.20, 148 pages, pulp, MAGAZINE)
- Unknown. Science Fiction Adventure Classics, November 1972 (Unknown, Edmond Hamilton, Ultimate Publishing Co., Inc., $0.60, 132 pages, digest, MAGAZINE)