When Caverns Yawned
From Author Wars - https://authorwars.com/books/when-caverns-yawned-218381.html
Overview:
- Title: When Caverns Yawned
- Author: uncredited
- Year: 1931
- Type: Interior Art
Editions/Publications:
- Unknown. Astounding Stories, May 1931 (Unknown, uncredited, Reader's Guild, $0.20, 148 pages, pulp, MAGAZINE)
- 2009 . Astounding Stories, May 1931 (2009, uncredited, Project Gutenberg, ebook, Anthology)