| Issue | #10 |
| Published | September 1980 |
| Cover Price | $0.50 |
| Pages | 36 |
| Editing | Danny Fingeroth |
| Notes | Price increase to 50 Cents. |
| Characters | Namor the Sub-Mariner; Barracuda |
| Genre | Superhero |
| Pencils | Gene Colan |
| Inks | Dan Adkins |
| Notes | Price increase to 50 Cents. |
| Reprinted | from Sub-Mariner (Marvel, 1968 series) #10 |
| Characters | Namor the Sub-Mariner; The Serpent Crown; Karthon the Quester; Naga; Captain Barracuda; Lady Dorma; Lord Vashti; Lord Seth; Dr. Docas; The Serpent Crown; Naga; Karthon; Tiger Shark; Var-Tov; Lemurians |
| Genre | Superhero |
| Script | Roy Thomas |
| Pencils | Gene Colan |
| Inks | Dan Adkins |
| Colors | Marie Severin |
| Letters | Artie Simek |
| Notes | Story is cut by two pages. Original pages 3 and 12 have been omitted. |
| Reprinted | from Sub-Mariner (Marvel, 1968 series) #10 |
| Notes | House Advertisement for: X-MEN/MAN-THING. |
| Notes | House Advertisement for Marvel Comics Series (subscription page). |
| Notes | House Advertisement for reader survey with text by Jim Shooter and Hulk art by Marie Severin. |
| Characters | Captain Marvel |
| Notes | Candy ad by the Baking Company using a one-page comic with Marvel heroes. |
| Notes | Total of 11 one-page and 1 two-page advertisements for: Prizes or Cash (novelties, Sales Leadership Club), Bubble Yum (chewing gum, Wm. Wrigley), Shop By Mail (miscellaneous ads, 2 pages), 1600 Novelties (pranks & jokes, Johnson Smith Company), Mr. Freeze Pool Float (candy, Mr. Freeze), Comic Books For Sale (back issues, Mile High Comics, 2 pages), Drink Marvel Style (merchandise, Heroes World), Super Gifts & Gimmicks (gifts, Fun Factory), Task Force (toys, Helen of Troy), Daisy 840 (kids gun, Daisy), Prizes or Cash (novelties, Olympic Sales Club). |