| Issue | #14 |
| Published | July 1939 |
| Cover Price | 0.10 USD |
| Pages | 68 |
| Editing | Vincent Sullivan |
| Characters | Zatara; Tong? |
| Genre | occult |
| Pencils | Fred Guardineer (signed) |
| Inks | Fred Guardineer (signed) |
| Letters | typeset |
| Reprinted | In Superman: The Action Comics Archives (DC, 1997 series) #1. |
| Characters | Superman [Clark Kent]; City Inspector Hughes; Lyons; V: Ultra-Humanite. |
| Synopsis | While investigating the collapse of a subway tunnel, Superman first faces off with those in charge of Star, Inc., a firm which built the tunnel with sub-standard materials, then he encounters the Ultra-Humanite, the bald, evil genius bent on world domination whom he thought died in the previous story. |
| Genre | superhero |
| Script | Jerry Siegel (signed as Jerome Siegel) |
| Pencils | Paul Cassidy (signed as Joe Shuster) |
| Inks | Paul Cassidy? |
| Notes | On sale 6/2/39; modified synopsis added by Craig Delich 8-10-08. The last panel of the story is an illustrated ad for Superman #1, on sale May 18th. |
| Reprinted | In Superman: The Action Comics Archives (DC, 1997 series) #1; in Superman in the Forties (DC, 2005 series) #nn. |
| Genre | fact |
| Script | George Papp |
| Pencils | George Papp |
| Inks | George Papp |
| Notes | Writer credit added by Craig Delich 8-10-08. |
| Characters | Pep Morgan |
| Genre | adventure |
| Script | Gardner F. Fox |
| Pencils | Fred Guardineer (signed as Gene Baxter) |
| Inks | Fred Guardineer (signed as Gene Baxter) |
| Notes | Continued in next issue. Writer credit added by Craig Delich 8-10-08. |
| Characters | Marco Polo |
| Genre | period |
| Pencils | Sven Elven |
| Inks | Sven Elven |
| Letters | Sven Elven |
| Notes | Letterer credit added by Craig Delich 8-10-08. |
| Characters | Clip Carson |
| Genre | adventure |
| Script | Bill Finger |
| Pencils | Bob Kane |
| Inks | Bob Kane |
| Notes | Continued in next issue. Writer credit added by Craig Delich 8-10-08. |
| Genre | adventure |
| Script | Gardner F. Fox ?; Vince Sullivan ? (signed as Terry Keane) |
| Pencils | ? (spot illos) |
| Inks | ? (spot illos) |
| Letters | typeset |
| Characters | Tex Thomson |
| Genre | adventure |
| Script | Ken Fitch? |
| Pencils | Bernard Baily (signed) |
| Inks | Bernard Baily (signed) |
| Letters | Bernard Baily |
| Notes | Letterer credit added by Craig Delich 8-10-08. |
| Characters | Chuck Dawson |
| Genre | adventure |
| Pencils | Homer Fleming (signed as H. Fleming) |
| Inks | Homer Fleming (signed as H. Fleming) |
| Notes | First episode in color. |
| Characters | Zatara |
| Genre | occult |
| Script | Gardner F. Fox |
| Pencils | Fred Guardineer |
| Inks | Fred Guardineer |
| Genre | fact |
| Pencils | Terry Gilkison |
| Inks | Terry Gilkison |