Data courtesy of the Grand Comics Database under Creative Commons license.

Issue Details

Issue	#20
Published	June-July 1961
Cover Price	0.10
Pages	36
Editing	Jack Schiff

Cover Details

Genre	adventure
Pencils	Bob Brown
Inks	Bob Brown

13 page Challengers of the Unknown story "Multi-man Strikes Again"

Characters	Multi Man- also in 24, 30, 40, 60, and he appeared as a member of the League of Challenger Haters
Genre	adventure
Script	Arnold Drake?
Pencils	Bob Brown
Inks	Bob Brown
Notes	Writer id by Bob Hughes.

12 page Challengers of the Unknown story "The Cosmic-Powered Creatures"

Genre	adventure
Script	Dave Wood?
Pencils	Bob Brown
Inks	Bob Brown
Notes	writer id by Bob Hughes