| Issue | #12 |
| Published | July 1940 |
| Cover Price | 0.10 |
| Pages | 68 |
| Editing | Ed Cronin |
| Notes | editor info from Crack #3 |
| Characters | Bozo the Robot, Black X, Wings Wendall; Abdul the Arab; Invisible Hood |
| Genre | science fiction |
| Pencils | Gill Fox? |
| Inks | Gill Fox? |
| Notes | editor info from Crack #3 |
| Characters | Batu; Madame Doom; Hunchback of Notre Dame (Intro, Dies)(descendant of original Hunchback); Ambassador Blank |
| Genre | spy |
| Script | Will Eisner [as Will Erwin] |
| Pencils | Will Eisner [as Will Erwin] |
| Inks | Will Eisner |
| Characters | Abdul; Hassan; Beni Abou II; Anitra; Rahdiz; Mahmoud |
| Genre | adventure |
| Script | Bob Powell [as Powell Roberts] |
| Pencils | Bob Powell [as Powell Roberts] |
| Inks | Bob Powell |
| Characters | Chic Carter; Sun Yen (intro, Dies); Toy Lin; Fu Chang (Intro, villain) |
| Genre | detective |
| Script | Vernon Henkel |
| Pencils | Vernon Henkel |
| Inks | Vernon Henkel |
| Characters | Archie O'Toole; Snowdrift (intro); Charlie Chaplin; Mae West; W. C. Fields; Clark Gable; Chico Marx; Groucho Marx; Greta Garbo |
| Genre | humor; children |
| Script | George Tuska? [as Bud Thomas] |
| Pencils | George Tuska? [as Bud Thomas] |
| Inks | George Tuska? [as Bud Thomas] |
| Characters | Flash Fulton: Sir Lawrence; Andy; Tommy Wilson; Steve Malone |
| Genre | adventure |
| Script | Paul Gustavson |
| Pencils | Paul Gustavson (signed) |
| Inks | Paul Gustavson |
| Notes | last appearance |
| Genre | gags |
| Script | John Devlin (signed) |
| Pencils | John Devlin (signed) |
| Inks | John Devlin (signed) |
| Characters | Bozo the Robot; Hugh Hazzard; Lippy Largo (Intro,Villain) |
| Genre | science fiction |
| Script | George Brenner [as Wayne Reid] |
| Pencils | George Brenner [as Wayne Reid] |
| Inks | George Brenner |
| Characters | Wun Cloo; The Eel (Intro, villain) |
| Genre | humor; detective |
| Script | Gill Fox (signed) |
| Pencils | Gill Fox (signed) |
| Inks | Gill Fox |
| Characters | Kent Thurston; Dr. and Mrs. Gray; Girth; Peeper; Prof. Dixon |
| Genre | superhero |
| Script | Art Pinajian [as Art Gordon] |
| Pencils | Art Pinajian [as Art Gordon] |
| Inks | Art Pinajian |
| Genre | sports; facts |
| Script | Gill Fox (signed) |
| Pencils | Gill Fox (signed) |
| Inks | Gill Fox |
| Characters | Philpot Veep; Waldo |
| Genre | detective |
| Script | John Devlin |
| Pencils | John Devlin |
| Inks | John Devlin |
| Genre | gags |
| Script | Arthur Beeman (signed) |
| Pencils | Arthur Beeman (signed) |
| Inks | Arthur Beeman (signed) |
| Characters | John Law; June Carter; Mr. Arms; Villain: The Avenger (Dies) |
| Genre | detective |
| Script | Harry Francis Campbell [as HFC] |
| Pencils | Harry Francis Campbell [as HFC] |
| Inks | Harry Francis Campbell [as HFC] |
| Notes | last appearance |
| Genre | detective |
| Script | Robert M. Hyatt |
| Letters | typeset |
| Characters | Craig Cook; The Chief; Kelton (villain); Zenah |
| Genre | detective |
| Script | William A. Smith |
| Pencils | William A. Smith |
| Inks | William A. Smith |
| Characters | Clip Chance; Spud; Coach Barr; Chuck |
| Genre | sports |
| Script | George Brenner |
| Pencils | George Brenner |
| Inks | George Brenner |
| Characters | Wings Wendall; Franklin Delano Roosevelt; Commander Zergoff (villain); Captain Hardt (villain,Intro, Dies) |
| Genre | aviation |
| Script | Vernon Henkel (signed) |
| Pencils | Vernon Henkel (signed) |
| Inks | Vernon Henkel |