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

Issue Details

Issue #9
Published August-September 1959
Frequency bi-monthly
Cover Price 0.10 USD
Pages 36
Editing Jack Schiff
Notes This is the first non-Jack Kirby issue. Learn more about the Challengers at www.challengersoftheunknown.com.

Cover Details - "The Plot to Destroy Earth!"

Characters Challengers of the Unknown [Ace Morgan; Rocky Davis; Professor Haley; Red Ryan]
Genre Adventure
Pencils Bob Brown

9 page Challengers of the Unknown story "The Men Who Lost Their Memories"

Characters Challengers of the Unknown [Ace Morgan; Rocky Davis; Professor Haley; Red Ryan]; June Robbins; Martin Ferndale; Higgins; Dekkar and his gang
Synopsis When a villain named Dekkar uses a machine to steal the Challengers' memories, June Robbins must show her amnesiac friends how to defeat their foe. Goading them, she makes them recall their mountain climbing, diving, and other skills. Feigning amnesia, the Challengers get into the villains' castle to fight. June inserts the memory disk into the machine, hits reverse, and restores the guys' memories.
Genre Adventure
Script France Ed Herron?
Pencils Bob Brown
Notes writer id by Bob Hughes

1 page Peter Porkchops public service announcement "Tips On Summer Fun!"

Characters Peter Porkchops
Genre humor
Script Jack Schiff
Pencils Rube Grossman
Inks Rube Grossman
Letters Ira Schnapp

Half page Shorty filler "I think I've got this new atomic gunpowder perfected."

Characters Shorty
Synopsis Shorty creates "atomic gunpowder".
Genre Humor
Pencils Henry Boltinoff (signed)
Inks Henry Boltinoff (signed)

13 page Challengers of the Unknown story "The Plot to Destroy Earth"

Characters Challengers of the Unknown [Ace Morgan; Rocky Davis; Professor Haley; Red Ryan]; three alien creatures; three robots.
Synopsis The Challengers stumble upon an alien plot to dismantle the Earth. A mole-creature will slice the Earth apart. A sea monster will hold back the seas. A flying creature will trap the air, and pie-shaped slices of Earth will be stolen by a robotic ship! Ace jets to the ship and finds it's on auto-pilot, run by robots for a long-dead race. The Challengers attack the creatures without success, until they inflate huge balloons that simulate the creatures dying. The robots abort the mission as a failure and depart.
Genre adventure
Script France Ed Herron?
Pencils Bob Brown
Inks Wally Wood?
Notes writer id by Bob Hughes

Half page Scientific Word Origins filler

Synopsis Scientific origins of the words: Bacteria, Nebula and Gravity.

1 page text story "The Menace of the Rainbow Rays"

Letters Typeset