Challengers of the Unknown — DC Comics
Issue: #27
Last valuation update: 2026-09-09
Challengers of the Unknown (1958) #27 is published by DC Comics and was released in Sep 1962. View cover art, issue details, and related characters and contributors.
First appearances: Volcano Man
Creators: Bob Brown
Characters: Ace Morgan, Prof Haley, Red Ryan, Rocky Davis, Volcano Man