Issue #13
May 01, 1960
Issue #14
Jul 01, 1960
Issue #15
Sep 01, 1960
Issue #16
Nov 01, 1960
Issue #17
Jan 01, 1961
Issue #18
Feb 01, 1961
Issue #19
Apr 01, 1961
Issue #20
Jun 01, 1961
Issue #21
Aug 01, 1961
Issue #22
Nov 01, 1961
Issue #23
Dec 01, 1961
Issue #24
Feb 01, 1962
Issue #25
Apr 01, 1962
Issue #26
Jun 01, 1962
Issue #27
Aug 01, 1962
Issue #28
Oct 01, 1962
Issue #29
Dec 01, 1962
Issue #30
Feb 01, 1963
Issue #31
Apr 01, 1963
Issue #32
Jun 01, 1963
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The Island in the Sky!
Dec 1, 1961
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Challengers of the Unknown #23 was published by DC Comics on January 1, 1962, as part of a series that began in 1958. Arnold Drake writes, and art comes from Bob Brown. It features Rocky Davis, Ace Morgan, Red Ryan, Prof Haley and June Robbins, among 8 characters catalogued on VerseDB.
Issue Number
#23
Release Date
December 1, 1961
Cover Date
January 1962
Series Details
Publisher
Run
1958
Issues Count
87
Format
Standard
Original Language
English
Language
English
Characters
Teams
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