Earth's Last Fortress
From Author Wars - https://authorwars.com/books/earths-last-fortress-1056464.html
Overview:
- Title: Earth's Last Fortress
- Author: Ed Emshwiller
- Year: 1960
- Type: Cover Art
Editions/Publications:
- Unknown. Earth's Last Fortress / Lost in Space (Unknown, Ed Emshwiller, Ace Books, $0.35, 114+142 pages, dos, Omnibus)