Synopsis
History
First publication: Astounding Science Fiction, July 1956
Review
Videos
We have the story in these editions:
The Best of Murray Leinster, paperback, Del Rey, 1978-04-00
Astounding Science Fiction, July 1956, edited by John W. Campbell, Jr., magazine, Street & Smith, 1956-07-00
All of the stories in the Colonial Survey series:
Sand Doom
Exploration Team
Critical Difference
The Swamp Was Upside Down
Colonial Survey
