Comic Title: Challengers of the Unknown #48
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: Feb/Mar 1966
On Sale Date: December 2, 1965 Copyright Date December 2, 1965
Source: Library of Congress, Periodicals 1965

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

Title: "Twilight of the Challengers"
Pages: 24

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

Writer: Arnold Drake
Artist: Bob Brown

Reprinted In:
Doom Patrol Archives Vol. 3 HC (2006)
Doom Patrol:The Silver Age Omnibus HC (2017)
Doom Patrol:The Silver Age Vol. 2 TPB (2020)

Feature Character(s)

• Challengers of the Unknown (appear concurrently in the first story of Doom Patrol #101; last appearance in Challengers of the Unknown #47; next appearance in Doom Patrol #102)
• Ace Morgan (appears concurrently in the first story of Doom Patrol #101; last appearance in Challengers of the Unknown #47; next appearance in Doom Patrol #102)
• Rocky Davis (appear concurrently in the first story of Doom Patrol #101; last appearance in Challengers of the Unknown #47; next appearance in Doom Patrol #102)
• Red Ryan (appear concurrently in the first story of Doom Patrol #101; last appearance in Challengers of the Unknown #47; next appearance in Doom Patrol #102)
• Prof. Haley (appear concurrently in the first story of Doom Patrol #101; last appearance in Challengers of the Unknown #47; next appearance in Doom Patrol #102)

Guest Star(s)

• Doom Patrol (last appearance in Doom Patrol #101; next appearance in Doom Patrol #102)
• Negative Man (last appearance in Doom Patrol #101; next appearance in Doom Patrol #102)
• Robotman (last appearance in Doom Patrol #101; next appearance in Doom Patrol #102)
• Elasti-Girl (last appearance in Doom Patrol #101; next appearance in Doom Patrol #102)
• Chief (last appearance in Doom Patrol #101; next appearance in Doom Patrol #102)

Villain(s)

• League of Challenger-Haters (last appearance in Challengers of the Unknown #45; next appearance in Doom Patrol #102)
• Multi-Man (last appearance in Challengers of the Unknown #45; next appearance in Doom Patrol #102)
• The Volcano Man (last appearance in Challengers of the Unknown #45; next appearance in Doom Patrol #102)
• Drabny (dies in this story; last appearance in Challengers of the Unknown #45; no further appearances)
• Kra (last appearance in Challengers of the Unknown #45; next appearance in Doom Patrol #102)
• Multi-Woman III (next appearance in Doom Patrol #102)

Comments:
This story is continued in part from the first story of Doom Patrol #101 and continues in Doom Patrol #102.

Synopsis:
After receiving a distress call, the Doom Patrol come to the aid of the Challengers of the Unknown. They arrive to find the Challs in a coma-like state. The Chief places them into suspended animation, then makes mental contact with Ace to learn the circumstances of their condition.

The Challengers were the victims of the League of Challenger-Haters. The League escaped imprisonment, then created an underwater base. When the Challs tried to attack, Multi-Man, in the form of a stingray, poisoned them with a stinger. The Challs were able to summon help before collapsing.

The Chief sends Robotman to retrieve a sample of the stinger from Multi-Man. Once Cliff successfully retrieves a stingray tail, the Chief is able to revive the Challs. Then together the Doom Patrol and the Challengers hunt for the League. Multi-Man booby-traps the League's underwater base, but his own ally, Drabny, falls victim to the ensuing explosion. The heroes are forced to temporarily abandon their pursuit when Multi-Man threatens the Chief. Once Caulder is released, both teams vow to renew their search.