Comic Title: Challengers of the Unknown #55
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: Apr/May 1967
On Sale Date: February 2, 1967 Newsstand Date February 2, 1967
Source: Direct Currents, Justice League of America #52, Page 29

Copyright Date February 2, 1967
Source: Library of Congress, Periodicals 1967

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

Title: "Taps for Red"
Pages: 24

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

Writer: Arnold Drake
Artist: Bob Brown

Feature Character(s)

• Challengers of the Unknown (last appearance in Challengers of the Unknown #54; next appearance in Challengers of the Unknown #56)
• Ace Morgan (last appearance in Challengers of the Unknown #54; next appearance in Challengers of the Unknown #56)
• Rocky Davis (last appearance in Challengers of the Unknown #54; next appearance in Challengers of the Unknown #56)
• Red Ryan (dies in this story; last appearance in Challengers of the Unknown #54; next appearance in Challengers of the Unknown #61)
• Prof. Haley (last appearance in Challengers of the Unknown #54; next appearance in Challengers of the Unknown #56)

Villain(s)

• League of Challenger-Haters (last appearance in Doom Patrol #102; next appearance in Challengers of the Unknown #61)
• Multi-Man (last appearance in Doom Patrol #102; next appearance in Challengers of the Unknown #61)
• Kra (last appearance in Doom Patrol #102; next appearance in Challengers of the Unknown #61)
• Villo (joins the League of Challenger-Haters; last appearance in Challengers of the Unknown #54; no further appearances)
• Brainex (joins the League of Challenger-Haters; last appearance in Challengers of the Unknown #54; no further appearances)
• Multi-Woman III (last appearance in Doom Patrol #102; no further appearances)
• The Volcano Man (last appearance in Doom Patrol #102; next appearance in Challengers of the Unknown #61)
• Collapse-O (a robot created by Villo and Brainex; destroyed in this story; no further appearances)

Other Character(s)

• Tino Manarry (a teen idol; real name Martin Ryan; next appearance in Challengers of the Unknown #56)

Synopsis:
After rejecting Villo as a member the League of Challenger-Haters begins a plot to destroy the world. With the help of Volcano Man, Multi-Man targets specific locations on the Earth that will cause all the volcanos on the planet to erupt at once. The Challengers deduce Multi-Man's plan and split up to stop the eruptions. The first stages are successfully stopped, but Red is forced to hand-detonate his device, leaving himself in the wake of destruction. The world is saved, but Red is believed dead.