| Issue | #12 |
| Published | December 1940 |
| Cover Price | 0.10 USD; 0.15 CAD |
| Pages | 68 |
| Editing | Malcolm Reiss (Editor); William E. Eisner (Art Director); S. M. Iger (Feature Editor) |
| Genre | jungle |
| Pencils | Dan Zolnerowich |
| Inks | Dan Zolnerowich |
| Characters | Mickey Malloy (introduction, villain, death) |
| Genre | jungle |
| Script | ? [as Red Brady] |
| Pencils | George Tuska |
| Inks | George Tuska; Art Saaf? |
| Notes | The story title is taken from the cover blurb. The art style softens as the story progresses and HW suggests that perhaps Art Saaf might be involved with the inks. |
| Genre | jungle |
| Script | ? [as Taylor Martin] |
| Pencils | Arthur Peddy |
| Inks | Arthur Peddy?; ? |
| Characters | Sir Champion (guest); Von Blumb (introduction, villain, death) |
| Genre | science fiction |
| Script | ? [as Ted Carter] |
| Pencils | Bob Powell? |
| Inks | Bob Powell?; Saul Rosen? |
| Characters | Diana Storm (introduction) |
| Genre | jungle |
| Script | ? [as Courtney Thomason] |
| Pencils | Nick Viscardi? |
| Inks | Nick Viscardi? |
| Characters | Dirk Hardy |
| Genre | jungle |
| Script | ? [as Bob Anthony] |
| Pencils | Lou Fine? |
| Inks | Lou Fine? |
| Letters | typeset |
| Characters | Fantomah; The Fifth Column (introduction, villain, death) |
| Synopsis | Fantomah causes the animals of the African and South American jungles to rise up and destroy a Fifth Column invasion. |
| Genre | jungle; occult |
| Script | Fletcher Hanks [as Barclay Flagg] (signed) |
| Pencils | Fletcher Hanks [as Barclay Flagg] (signed) |
| Inks | Fletcher Hanks [as Barclay Flagg] (signed) |
| Letters | Fletcher Hanks |
| Notes | First line of text reads: "Fantomah, the most remarkable woman that ever lived, devotes her phenomenal abilities to protecting the jungle-born..." |
| Reprinted | in You Shall Die by Your Own Evil Creation! (Fantagraphics, 2009 series) #[nn] |
| Characters | Wuga Moro (introduction, villain, death?); Jack (introduction); Ellen (introduction) |
| Genre | jungle |
| Script | ? [as Johnson Melville] |
| Pencils | Witmer Williams |
| Inks | Witmer Williams |
| Characters | Anderson the Arab (guest); Vincent (introduction)(a vulture) |
| Script | ? [as Pierre La Rue] |
| Pencils | Bill Bossert |
| Inks | Bill Bossert |
| Characters | Baron Logh (introduction, villain, death); Father Andre (introduction, death) |
| Genre | jungle |
| Script | ? [as Robert Lewis] |
| Pencils | Charles Sultan |
| Inks | Charles Sultan |
| Genre | fact |
| Script | ? [as Leo Leon] |
| Characters | Captain Schlact (introduction, villain, death); the Baron (introduction, villain, death) |
| Genre | jungle |
| Script | ? [as Roy L. Smith] |
| Pencils | Henry Kiefer |
| Inks | Henry Kiefer |