| 0 | The Devil's Hatchet Men | cover | 1 | pencils: Joe Simon; inks: Joe Simon | The Green Mask [Michael Shelby]; Domino the Miracle Boy [Don]; the Green Mask (inset); Olivia Tracy (Shelby's girl friend) |
| 1 | Sensational! Tremendous! | promo (ad from the publisher) | 1 | | |
| 2 | Death Wields a Scalpel | comic story | 14 | script: Walter Frame; pencils: Arturo Cazeneuve; inks: Arturo Cazeneuve | The Green Mask [Michael Shelby]; Domino the Miracle Boy [Don]; Dr. Larrett (villain, introduction); Olivia Tracy (Shelby's girl friend) |
| 3 | The Devil's Hatchet Men | comic story | 10 | script: Walter Frame; pencils: Arturo Cazeneuve; inks: Arturo Cazeneuve | The Green Mask [Michael Shelby]; Domino the Miracle Boy [Don]; Olivia Tracy (Shelby's girlfriend); The "Devil" [Larchmont] (villain, introduction, death?); the Hatchet Men (villains, introduction, some die) |
| 4 | Horror Sings a Lullaby | comic story | 7 | script: Walter Frame; pencils: Arturo Cazeneuve; inks: Arturo Cazeneuve | The Green Mask [Michael Shelby]; Domino the Miracle Boy [Don, Shelby's ward]; Olivia Tracy (Shelby's girlfriend); Joseph (Olivia's nephew); Peters (Olivia's chauffeur); John Nemo (villain, introduction); Hawkins (villain, Nemo's servant) |
| 5 | The Mystery of Barren Island | comic story | 10 | script: Walter Frame; pencils: Arturo Cazeneuve; inks: Arturo Cazeneuve | The Green Mask [Michael Shelby]; Domino the Miracle Boy [Don, Shelby's ward]; Olivia Tracy (Shelby's girl friend); William Ames (villain, introduction); Mugsy (villain, introduction) |
| 6 | As New as Tomorrow's Dawn | promo (ad from the publisher) | 1 | | |
| 7 | Harvest for Famine | comic story | 6 | script: Jack Simms | Bonnie O'Toole; Farley (villain, introduction) |
| 8 | Anchor Aweigh | text story | 2 | script: Gene Rider | Lieutenant Larson (submarine commander); Niles Blair (torpedoman) |
| 9 | Mickey and the Magic Bottle | comic story | 6 | script: Joe Lozen | Mickey Hawkins (introduction); Ebenezer Hawkins (introduction); Abigail Hawkins (introduction); Alla Kazam (introduction); Smoke Hag (villain, introduction) |
| 10 | You Can't Go Wrong | promo (ad from the publisher) | 1 | | |
| 11 | The Censor! | comic story | 6 | script: Dirk Drumlin | The Nightbird [Lens Crockett] (reporter); The Censor [Richardi] (villain, introduction, death) |