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

Issue Details

Issue	#77
Published	December 1970-January 1971
Cover Price	0.15 USD
Pages	36
Editing	Murray Boltinoff

Cover Details - "Menace of the Ancient Vials!"

Characters	Challengers of the Unknown [Kyle "Ace" Morgan; Matthew "Red" Ryan; Leslie "Rocky" Davis; Walter Mark "Prof" Haley]
Genre	Science Fiction; Adventure
Pencils	Jack Kirby

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

Characters	Challengers of the Unknown [Kyle "Ace" Morgan; Matthew "Red" Ryan; Leslie "Rocky" Davis; Walter Mark "Prof" Haley]
Genre	Science Fiction; Adventure
Script	Jack Kirby
Pencils	Jack Kirby
Inks	Jack Kirby (?)
Notes	Previously inker listed as Marvin Stein. Per Stein's conversations with Greg Theakston, he did not ink any Challengers stories.
Reprinted	from Showcase (DC, 1956 series) #12 (January-February 1958)

6 page Challengers of the Unknown story "Chapter Two: The Fire Being!"

Characters	Challengers of the Unknown [Kyle "Ace" Morgan; Matthew "Red" Ryan; Leslie "Rocky" Davis; Walter Mark "Prof" Haley]
Genre	Science Fiction; Adventure
Script	Jack Kirby
Pencils	Jack Kirby
Inks	Jack Kirby (?)
Notes	Previously inker listed as Marvin Stein. Per Stein's conversations with Greg Theakston, he did not ink any Challengers stories.
Reprinted	from Showcase (DC, 1956 series) #12 (January-February 1958)

6 page Challengers of the Unknown story "Chapter Three: The Demon From the Depths!"

Characters	Challengers of the Unknown [Kyle "Ace" Morgan; Matthew "Red" Ryan; Leslie "Rocky" Davis; Walter Mark "Prof" Haley]
Genre	Science Fiction; Adventure
Script	Jack Kirby
Pencils	Jack Kirby
Inks	Jack Kirby (?)
Notes	Previously inker listed as Marvin Stein. Per Stein's conversations with Greg Theakston, he did not ink any Challengers stories.
Reprinted	from Showcase (DC, 1956 series) #12 (January-February 1958)

6 page Challengers of the Unknown story "Chapter Four: The Deadly Duplicates!"

Characters	Challengers of the Unknown [Kyle "Ace" Morgan; Matthew "Red" Ryan; Leslie "Rocky" Davis; Walter Mark "Prof" Haley]
Genre	Science Fiction; Adventure
Script	Jack Kirby
Pencils	Jack Kirby
Inks	Jack Kirby (?)
Notes	Previously inker listed as Marvin Stein. Per Stein's conversations with Greg Theakston, he did not ink any Challengers stories.
Reprinted	from Showcase (DC, 1956 series) #12 (January-February 1958)