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

Issue Details

Issue	V1#12 [12]
Published	July 1941
Cover Price	0.10 USD
Editing	John Reece?

Cover Details

Pencils	Jack Binder
Inks	Jack Binder

14 page Black Owl story "The Reaper"

Characters	The Black Owl [Doug Danville]; The Reaper (first appearance; villain)
Script	Otto Binder
Pencils	Jack Binder
Inks	Jack Binder

6 page Dr. Frost story "The Black Smoke Robberies"

Characters	Dr. Frost
Pencils	Ben Thompson
Inks	Ben Thompson

6 page Ted O'Neil story "The Secret Nazi Air Base"

Pencils	Maurice Gutwirth
Inks	Maurice Gutwirth

8 page Frankenstein story "Frankenstein and Bulldog"

Characters	Frankenstein; Bulldog [Denny Dunsan]; Victor Frankenstein;
Script	Dick Briefer
Pencils	Dick Briefer
Inks	Dick Briefer
Notes	References to HUNCHBACK OF NOTRE DAME, which Briefer adapted for JUMBO COMICS

8 page Green Lama story "Sing Po, Oriental Racketeer"

Characters	Green Lama [Jethro Dumont]; Sing Po (first appearance; villain)
Script	Ken Crossen
Pencils	Charles Sultan
Inks	Charles Sultan

8 page Great Voodini story "Whizzo, Man of a Million Masks"

Characters	Voodini (last appearance); Whizzo (first appearance; villain)
Pencils	Jon Smalle
Inks	Jon Smalle

2 page text story "Tommy Makes Good"

Letters

typeset

6 page Twist Turner story "Task No. 6"

Characters	Twist Turner
Script	Four Roth Bros. (they wax Jennings for awhile)
Pencils	Four Roth Brothers [Irving Roir; Al Ross; Ben Roth; Salo Roth]
Inks	Four Roth Brothers

7 page Power Nelson story "The Bomber Blueprints Blitz"

Characters	Power Nelson; Hertz (first appearance; villain)
Pencils	Paul Norris
Inks	Paul Norris