Comic Title: Challengers of the Unknown #32
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: Jun/Jul 1963
On Sale Date: April 11, 1963 Copyright Date April 11, 1963
Source: Library of Congress, Periodicals 1963

Frequency: Bi-monthly
Cover Price: $0.12
Page Count: 32
Editor: Murray Boltinoff

Title: "Cosmo Turns Traitor"
Pages: 15

Feature(s):
Challengers of the Unknown (of Earth-1)

Artist: Bob Brown

Reprinted In:
Showcase Presents:Challengers of the Unknown Vol. 2 TPB (2008)

Feature Character(s)

• Challengers of the Unknown (last appearance in Challengers of the Unknown #32; next appearance in Challengers of the Unknown #33)
• Ace Morgan (last appearance in Challengers of the Unknown #32; next appearance in Challengers of the Unknown #33)
• Rocky Davis (last appearance in Challengers of the Unknown #32; next appearance in Challengers of the Unknown #33)
• Red Ryan (last appearance in Challengers of the Unknown #32; next appearance in Challengers of the Unknown #33)
• Prof. Haley (last appearance in Challengers of the Unknown #32; next appearance in Challengers of the Unknown #33)

Supporting Character(s)

• Cosmo (last appearance in Challengers of the Unknown #25; no further appearances)

Villain(s)

• Mastermind and two henchmen (no further appearances)

Other Character(s)

• D’Jann (Cosmo’s original owner; no further appearances)

Comments:
Cosmo’s real name of J’Suna is revealed in this story.

Synopsis:
Cosmo’s original owner D’Jann comes to Earth seeking his lost pet. A group of criminals led by Mastermind trick D’Jann into helping them capture the Challengers. Once captured the Challs are transformed into fire, wind, cloud, and two-dimensional men. They escape, but Cosmo is injured. D’Jann heals his pet and learns that Mastermind has deceived him. He restores the Challs to their natural forms, helps them capture Mastermind, then returns to his homeworld, leaving Cosmo on Earth with the Challs.