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

Issue Details

Issue #12
Published January-February 1958
Cover Price 0.10 USD
Pages 36
Editing Jack Schiff
Notes Fourth appearance of the Challengers of the Unknown.

Cover Details

Characters Challengers of the Unknown [Ace Morgan; Professor Haley; Red Ryan; Rocky Davis]
Genre Adventure
Pencils Jack Kirby
Inks Marvin Stein
Notes Fourth appearance of the Challengers of the Unknown.
Reprinted in Essential Showcase 1956-1959, The (DC, 1992 series) #nn; in Challengers of the Unknown Archives (DC, 2003 series) #1 (July 2003); in Showcase Presents Challengers of the Unknown (DC, 2006 series) #1

6 page Challengers of the Unknown story "Menace of the Ancient Vials"

Characters Challengers of the Unknown [Ace Morgan; Professor Haley; Red Ryan; Rocky Davis]; Amos Hunter; VILLAINS: Brommer; Gortz; Karnak
Genre Adventure
Script Dave Wood
Pencils Jack Kirby
Inks George Klein
Letters Artie Simek
Notes Chapter 1. Lettering credit from Rodrigo Baeza via the GCD-chat mailing list, March 2007.
Reprinted in Challengers of the Unknown Archives (DC, 2003 series) #1 (July 2003); in Showcase Presents Challengers of the Unknown (DC, 2006 series) #1

6 page Challengers of the Unknown story "The Fire Being"

Genre Adventure
Script Dave Wood
Pencils Jack Kirby
Inks George Klein
Letters Artie Simek
Notes Chapter 2.
Reprinted in Challengers of the Unknown Archives (DC, 2003 series) #1 (July 2003); in Showcase Presents Challengers of the Unknown (DC, 2006 series) #1

6 page Challengers of the Unknown story "Demon from the Depths"

Genre Adventure
Script Dave Wood
Pencils Jack Kirby
Inks George Klein
Letters Artie Simek
Notes Chapter 3.
Reprinted in Challengers of the Unknown Archives (DC, 2003 series) #1 (July 2003); in Showcase Presents Challengers of the Unknown (DC, 2006 series) #1

6 page Challengers of the Unknown story "The Deadly Duplicators"

Genre Adventure
Script Dave Wood
Pencils Jack Kirby
Inks George Klein
Letters Artie Simek
Notes Chapter 4. Series continued in Challengers of the Unknown 1.
Reprinted in Challengers of the Unknown Archives (DC, 2003 series) #1 (July 2003); in Showcase Presents Challengers of the Unknown (DC, 2006 series) #1

2 page Professor Eureka filler "A-Bomb][First Line: Professor, your research and development ..."

Genre gag
Script Henry Boltinoff
Pencils Henry Boltinoff
Inks Henry Boltinoff
Letters Henry Boltinoff
Notes Title and first line from Arthur Lortie, added August 2006.