Challengers of the Unknown (1958 DC 1st Series) 18
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$21.00
View scans- Cover and first wrap detached at one staple.
$15.00
View scan- Cover and first three wraps detached at one staple. Water spotting.
"The Menace of Mystery Island." The Challengers, on their way to an island that June has inherited, discover a mysterious alien pet in a space capsule from another planet. "The Doomed World of Tomorrow." The Challengers help future Earthlings battle cosmic creatures. Art and cover by Bob Brown. Statement of ownership--average paid circulation 228,000. Full-page ad for Justice League of America # 3. Cover price $0.10.