| Issue | #12 |
| Published | March 1941 |
| Cover Price | 0.10 USD |
| Pages | 68 |
| Editing | Victor Fox |
| Characters | The Avenger (Villain; Intro); The Secret Nine (Villain; Intro); Sandra Tarnov (Intro) |
| Pencils | Louis Cazeneuve? |
| Inks | Louis Cazeneuve? |
| Characters | Sorceress of Zoom (Villain); Corro (Villain; Intro; Death) |
| Pencils | Don Rico? |
| Inks | Don Rico? |
| Notes | A girl gets turned into a fire hydrant in this story. |
| Characters | The Beast (Villain) |
| Pencils | Louis Cazeneuve? |
| Inks | Louis Cazeneuve? |
| Script | Bert Whitman |
| Pencils | Bert Whitman |
| Inks | Bert Whitman |
| Script | Nathaniel Nitkin (N. N. Nathaniel) |
| Letters | typeset |
| Characters | Drago (Villain; Intro) |
| Pencils | ? (James J. Royal) |
| Characters | Bonno (Villain; Intro; Death) |
| Pencils | ? (Spence Allen) |
| Characters | Rino (Villain; Intro) |
| Pencils | Robert Webb? |
| Inks | Robert Webb? |