Published: January 1957
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Credits for pencils confirmed from Julius Schwartz's editorial records, provided by DC Comics. Schwartz kept editorial records for Robert Kanigher, who edited this issue. Art experts believe Jack Adler did the wash to this cover.
Credits for pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics.
Julius Schwartz's editorial records, provided by DC Comics, show Ross Andru as being paid for the pencils and inks for this story, however Mike Esposito worked with Ross and scholars agree he inked this story.
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. We formerly credited the script to John Reed in error.
Back cover.
Inside back cover.
"To the boys and girls of America..."
Story Featuring Challengers of the Unknown
House ad for Showcase/Challengers of the Unknown.
Ad for various novelty items. Inside front cover.
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