CATALOG RECORD

Showcase #12

DC · Series began 1956 · January-February 1958

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Dates

Cover date: January-February 1958
On sale: November 17, 1957
Pages: 36

Editions and covers

Original edition
Source ↗

Creators

pencils: Jack Kirby, Mort Drucker, Henry Boltinoff, Ruben Moreirainks: Jack Kirby, Rosalind Kirby, Mort Drucker, Henry Boltinoff, Ruben Moreiraletters: Ira Schnapp, Artie Simek, Mort Drucker, Henry Boltinoffscript: Dave Wood, Mort Drucker, Henry Boltinoff, Jack Schiff

Stories

Chapter 1: The Menace of the Ancient Vials! · 6 pages
Karnak and his men land on an island while trying to escape from the Challengers. There they find Amos Hunter and 5 mysterious vials. The first vial makes two members of the gang into giants.
Rocket Take-Off... · 1 pages
Chapter Two: The Fire Being! · 6 pages
The next vial releases a fiery salamander that begins to burn down the island.
Untitled · 2 pages
Professor Eureka finds a way to continue funding his experiments after the government cuts his budget.
Chapter 3: The Demon from the Depths · 6 pages
The fiery salamander is defeated but the third vial releases a giant octopus creature.
The Day I Climbed Magic Mountain · 1 pages
John Craven hires a mountain guide to lead the way to Magic Mountain.
Chapter 4: The Deadly Duplicates! · 6 pages
The fourth vial turns Karnak into 50 copies of himself.

Characters

Rocky DavisAce MorganRed RyanProf HaleyProfessor Eureka

Reprinted in

Mighty The 100-Page Comic! (1957), Challengers of the Unknown (1958), Challengers of the Unknown Archives (2003), Showcase Presents Challengers of the Unknown (2006), Showcase Presents: Showcase (2012), Challengers of the Unknown by Jack Kirby (2012), Challengers of the Unknown by Jack Kirby (2017)