| Issue | #21 |
| Published | April 1941 |
| Cover Price | $0.10 |
| Pages | 68 |
| Editing | Ed Cronin ? |
| Characters | Ray; Midnight; Bozo; Wings Wendall; Black X |
| Genre | superhero |
| Pencils | Gill Fox ? |
| Inks | Gill Fox ? |
| Characters | Captain Blue (intro, villain); Ray; Jackie (intro, later known as Bud); Keefer; Rogers |
| Synopsis | Ray and a boy and two men are stranded on a Pacific Island after their plane is shot down by "asiatics". There he meets Captain Blue, a pirate who intends to take over the world after the Americans and the "mongols" destroy each other. The young boy, Jackie, discovers the Ray's secret identity. |
| Genre | superhero |
| Pencils | Lou Fine [as E. Lectron] |
| Inks | Lou Fine [as E. Lectron] |
| Genre | humor; children |
| Characters | Midnight; Gabby the talking monkey (intro); Slug McGurk; Julie the Jerk; Alice O'Day (dies) |
| Synopsis | Midnight comes to the rescue of a purse snatching victim and discovers she's a scientist who can make animals talk. She dies leaving only Gabby as proof that her theories worked. |
| Genre | superhero; adventure |
| Script | Jack Cole |
| Pencils | Jack Cole (signed) |
| Inks | Jack Cole (signed) |
| Characters | Wings Wendall; Spinner Benson; Derek; Baron; Col Harrison |
| Synopsis | Wings and Spinner discover an unknown base on an American island. |
| Genre | aviation |
| Pencils | Vernon Henkel (signed) |
| Inks | Vernon Henkel (signed) |
| Characters | Tiny; Warren; Rocky; J. G. Throcton |
| Genre | adventure |
| Script | Jerry Iger [as S.M. Regi] |
| Pencils | Alex Blum ? [as S.M. Regi] |
| Inks | Alex Blum ? [as S.M. Regi] |
| Genre | humor; detective |
| Script | Jack Cole [as Ralph Johns] |
| Pencils | Jack Cole [as Ralph Johns] |
| Inks | Jack Cole [as Ralph Johns] |
| Characters | Kent Thurston; Mr. Mite; Black John |
| Genre | superhero |
| Pencils | Art Pinajian ? [as Art Gordon] |
| Inks | Art Pinajian ? [as Art Gordon] |
| Characters | Black X; Batu; Madame Doom; Ahkir Jubnijhak |
| Synopsis | Black X goes to India to help Batu track down infiltration of the British Raj by terrorists. Madame Doom follows for her own reasons. |
| Genre | spy |
| Pencils | Witmer Williams ? [as Will Erwin] |
| Inks | Witmer Williams ? [as Will Erwin] |
| Characters | Abdul; Hassan; Afta Ikur; Cy Young |
| Genre | adventure |
| Pencils | John Celardo [as Powell Roberts] |
| Inks | John Celardo [as Powell Roberts] |
| Characters | Scarlet Seal (Barry Moore); Seymour Blots; Captain Moore |
| Genre | detective |
| Pencils | Harry Campbell (as Duane Byrd Monroe) |
| Inks | Harry Campbell (as Duane Byrd Monroe) |
| Characters | Magno; Dr. Harry Wood; Van Nest |
| Synopsis | Five archeologists tattoo a map to ancient mystical treasure on the backs of their hands. Now someone is murdering them and stealing those hands. |
| Genre | superhero |
| Pencils | Paul Gustavson (signed) |
| Inks | Paul Gustavson (signed) |
| Genre | adventure |
| Letters | typeset |
| Characters | Chic Carter; Gordon Bruce; Chung Musta; Hilme; the Prince of Kabat |
| Genre | detective |
| Pencils | Vernon Henkel |
| Inks | Vernon Henkel |
| Characters | Tom Holms; Mr.Goyle; Hugh Hazzard; Bozo the Robot; Chico |
| Genre | science fiction |
| Pencils | George Brenner ? [as Wayne Reid] |
| Inks | George Brenner ? [as Wayne Reid] |