| Issue | #9 |
| Published | Spring 1943 |
| Cover Price | 0.10 |
| Pages | 68 |
| Editing | Vince Fago? |
| Characters | The Sub-Mariner [Prince Namor]; The Angel [Tom Hallaway] (inset); the Japanese (villains) |
| Genre | superhero |
| Pencils | Alex Schomburg |
| Inks | Alex Schomburg |
| Letters | typeset |
| Reprinted | in Marvel Masterworks: Golden Age Sub-Mariner (Marvel, 2005 series) #3 (2009) |
| Characters | The Sub-Mariner [Prince Namor]; Captain Presner; Captain Tsaki (villain, introduction, death) |
| Synopsis | The Sub-Mariner investigates the sudden appearance of an iceberg in waters they normally do not exist in, and discovers it's man-made and a cover for Japanese destroyers to attack American shipping. |
| Genre | superhero |
| Pencils | Carl Pfeufer |
| Inks | Carl Pfeufer |
| Reprinted | in Marvel Masterworks: Golden Age Sub-Mariner (Marvel, 2005 series) #3 (2009) |
| Characters | The Human Torch; The Sub-Mariner |
| Synopsis | Illustrated promotional ad for the latest issue of the Human Torch. |
| Genre | Superhero |
| Letters | typeset |
| Reprinted | in Marvel Masterworks: Golden Age Sub-Mariner (Marvel, 2005 series) #3 (2009) |
| Characters | The Sub-Mariner [Prince Namor]; Guest Stars: The Irish Republican Army; Von Klutz (villain, introduction) |
| Synopsis | Sub-Mariner must stop the mysterious and destructive explosions occuring all over Ireland, accomplished by a dangerous Nazi leader and his men, who are leaving clues behind which pin-point the I.R.A. as the true culprits. |
| Genre | superhero |
| Pencils | Carl Pfeufer |
| Inks | Carl Pfeufer |
| Reprinted | in Marvel Masterworks: Golden Age Sub-Mariner (Marvel, 2005 series) #3 (2009) |
| Characters | Dr. Dimwit; Slouch Crouch (Dimwit's assistant); Augustus Bustus (introduction) |
| Synopsis | When Augustus Bustus enters the offices of Dr. Dimwit to see if the doctor can correct his bowl legs condition, he ends up with an entirely new problem which works out for the best. |
| Script | Basil Wolverton |
| Pencils | Basil Wolverton |
| Inks | Basil Wolverton |
| Reprinted | in Marvel Masterworks: Golden Age Sub-Mariner (Marvel, 2005 series) #3 (2009) |
| Characters | Walt Jones; Mr. Jones; Bull Mulligan (villain); Squinty Lewis (villain); Trigger Davis (villain) |
| Synopsis | Bull Mulligan buys several new shirts and ties, hoping that they will cheer up the members of his gang, but has trouble opening the door to the hideout with his key because of the packages in his arms, leading to a deadly result. |
| Letters | typeset |
| Reprinted | in Marvel Masterworks: Golden Age Sub-Mariner (Marvel, 2005 series) #3 (2009) |
| Characters | The Angel [Tom Hallaway]; un-named girl (to be made Queen for the King); the Gorilla-Man and his family (introduction); The King of Castle Island (villain, introduction, death); The Royal Family (villains, introduction, death) |
| Synopsis | When Tom Hallaway discovers a girl bleeding green blood, the Angel follows it up and discovers a group of people descended from an ancestor that had contracted a rare tropical malady resulting in green blood in all family members who followed. |
| Genre | superhero |
| Pencils | Gustav Schrotter |
| Inks | Gustav Schrotter |
| Reprinted | in Marvel Masterworks: Golden Age Sub-Mariner (Marvel, 2005 series) #3 (2009) |