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Series
Journey Into Unknown Worlds 40
Atlas Tales
Curated Atlas tales, timelines, and cover art notes.
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How much is Journey Into Unknown Worlds #40 worth?
Current market pricing for Journey Into Unknown Worlds #40 shows a latest graded sale of CGC 8.0 sold for $95.60 on August 7th, 2007.
Graded price ranges include CGC 8.0 $95.60 (1 comp).
Pricing data last updated June 18th, 2026.
- Cover Date
- December 1955
- Sighted Date Stamp
-
Oct 4, 1955
- Indicia Frequency
- monthly
- Indicia Publisher
- Western Fiction Publishing Co., Inc.
- Cover Titles
- Who Dwells in the Mountain?
- Cover Credits
-
Carl Burgos pencils attributed
Issue Overview
Journey Into Unknown Worlds #40 was published by Western Fiction Publishing Co., Inc. in December 1955. It is part of the Journey Into Unknown Worlds series, which ran from September 1950 to August 1957.
Cover credits include Carl Burgos.
Atlas Tales indexes 6 stories for this issue, including "Who Dwells inside the Mountain?." Indexed story credits include Dick Ayers and Vic Carrabotta, among others.
Stories
Who Dwells inside the Mountain?
The Vacuum
Not Quite Human!
In Your Hat
Jim Vadeboncoeur Jr.: Creator Credit
The House of Secrets!
Jim Vadeboncoeur Jr.: Creator Credit
He Went Too Far
Jim Vadeboncoeur Jr.: Creator Credit
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Looking for the full run? Browse the Journey Into Unknown Worlds checklist to see every indexed issue in one place.