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

Issue Details

Issue	#40
Published	June 1955
Cover Price	0.10 USD
Pages	36
Editing	Stan Lee
Notes	Art credits by Dr. Michael Vassallo (May 2009). Previous indexer had Syd Shores as the artist.

Cover Details - "The Mystery of the Secret Tunnel?"

Characters	Sub-Mariner [Namor]
Genre	superhero
Pencils	Bill Everett
Notes	Art credits by Dr. Michael Vassallo (May 2009). Previous indexer had Syd Shores as the artist.
Reprinted	in Marvel Masterworks Atlas Era Heroes (Marvel, 2007 series) #3.

8 page Sub-Mariner story "The Secret Tunnel!"

Characters	Sub-Mariner [Namor]; Ivan Ivanoff (first appearance; villain); the Communists (villains)
Genre	superhero
Script	Bill Everett (signed)
Pencils	Bill Everett (Signed)
Inks	Bill Everett (signed)
Letters	Bill Everett
Reprinted	in Marvel Masterworks Atlas Era Heroes (Marvel, 2007 series) #3.

4 page Sub-Mariner story "The Sub-Mariner Meets a New Enemy.... Fire!"

Characters	Sub-Mariner [Namor] (Origin; at age 16); Namora; Byrrah
Genre	superhero
Script	Bill Everett (signed)
Pencils	Bill Everett (Signed)
Inks	Bill Everett (signed)
Letters	Bill Everett
Reprinted	in Marvel Super-Heroes (Marvel, 1967 series) #20 (May 1969) [original layout=4 pages]; in Comix: A History of Comic Books in America (Bonanza, 1971 series) #[nn] [revised layout=2 pages]; in Comix: A History of Comic Books in America (Outerbridge & Dienstfrey, 1971 series) #[nn] [revised layout=2 pages]; in Marvel Masterworks Atlas Era Heroes (Marvel, 2007 series) #3.

4 page story "The Man Who Loved the Sea"

Pencils	Tony DiPreta
Inks	Tony DiPreta
Reprinted	in Marvel Masterworks Atlas Era Heroes (Marvel, 2007 series) #3.

1 page text story "Fogbound"

Letters	typeset
Reprinted	in Marvel Masterworks Atlas Era Heroes (Marvel, 2007 series) #3.

7 page Sub-Mariner story "The Sub-Mariner and the Icebergs"

Characters	Sub-Mariner [Namor]; Namora; Tha-Korr; Byrrah
Genre	superhero
Script	Bill Everett (signed)
Pencils	Bill Everett (Signed)
Inks	Bill Everett (signed)
Letters	Bill Everett
Reprinted	In Marvel Feature #1 (December 1971); in Marvel Masterworks Atlas Era Heroes (Marvel, 2007 series) #3.