Challengers of the Unknown (Volume 1) with a cover date of September, 1961.
Synopsis for "The Weird World That Didn't Exist"
Appearing in "The Weird World That Didn't Exist"
Featured Characters:
Supporting Characters:
Antagonists:
Other Characters:
Locations:
Items:
Vehicles:
Synopsis for "The Challengers' Space-Pet Ally"
Appearing in "The Challengers' Space-Pet Ally"
Featured Characters:
- Cosmo
Synopsis for "Mad Monarch of Burning Mountain"
Appearing in "Mad Monarch of Burning Mountain"
- Appearances not yet listed
See Also
- Cover gallery for the Challengers of the Unknown series
- Images from Challengers of the Unknown Vol 1 21