Comic Title: Challengers of the Unknown #38
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: Jun/Jul 1964
On Sale Date: April 2, 1964 Copyright Date April 2, 1964
Source: Library of Congress, Periodicals 1964

Newsstand Date April 2, 1964
Source: Newsdealer Magazine, V19 #4

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

Title: "The Menace the Challengers Made"
Pages: 13

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 #37; next appearance in Challengers of the Unknown #38)
• Ace Morgan (last appearance in Challengers of the Unknown #37; next appearance in Challengers of the Unknown #38)
• Rocky Davis (last appearance in Challengers of the Unknown #37; next appearance in Challengers of the Unknown #38)
• Red Ryan (last appearance in Challengers of the Unknown #37; next appearance in Challengers of the Unknown #38)
• Prof. Haley (last appearance in Challengers of the Unknown #37; next appearance in Challengers of the Unknown #38)

Villain(s)

• Killer Starke (no further appearances)

Other Character(s)

• A native chief and his tribe (no further appearances)

Synopsis:
The Challengers trail Killer Starke to the jungles of Africa. A native chief warns them not to enter the Red Forest, but when Starke enters, they must follow. Starke shoots at the Challs, forcing them to throw an explosive device at him. In causes Starke to fall into a pool of strange chemicals and become a blob-shaped meance.

The blob absorbs everything in its path. The Challs are unable to halt its progress. The natives evacuate the nearby village and attempt to starve the creature by removing objects from its path. The Challs use a jet engine to lift the creature into the air. The creature begins shrinking and eventually changes back into Starke, who survives the ordeal.