Series
Marvel Mystery Comics (1939 series)
Editor(s)
Not yet indexed
Main Story
The Invasion of Alslavia
Additional Stories
Namor's Flying Bantam Car, The Nazis' Death Gas, The Mystery of the Phantom Killer, (Not specified), Khor, the Black Sorceror, The Revenge of Sphinx Henchel
Script
Carl Burgos, Bill Everett, Ben Thompson, Ray Gill, Jack Kirby
Pencils
Carl Burgos, Bill Everett, Ben Thompson, Bob Oksner, Art Gates, Jack Kirby, Al Gabriele
Inks
Carl Burgos, Bill Everett, Ben Thompson, Bob Oksner, Art Gates, Al Avison
Lettering
Bill Everett, Howard Ferguson
Cover
Alex Schomburg (pencils/inks)