| Issue | #52 |
| Published | June 1941 |
| Cover Price | 0.10 |
| Pages | 68 |
| Editing | Whitney Ellsworth; [Murray Boltinoff; Mort Weisinger] |
| Characters | Batman; Robin; Loo Chung [villain]. |
| Genre | superhero |
| Pencils | Bob Kane (signed) |
| Inks | Jerry Robinson |
| Reprinted | In The Batman Archives (DC, 1990 series) #2 (1991). |
| Characters | Batman [Bruce Wayne]; Robin [Dick Grayson]; Achmed; Mr. Potter [D]; Thomas; Loo Chung (villain). |
| Synopsis | Batman and Robin must solve the mystery of the "Khan" ring, a ring that once belonged to Ghengis Khan, and whose relative now wears it, and has started a protection racket. |
| Genre | superhero |
| Script | Bill Finger |
| Pencils | Bob Kane (signed) |
| Inks | Jerry Robinson; George Roussos |
| Letters | George Roussos |
| Notes | Some info and synopsis added by Craig Delich 3-10-09. |
| Reprinted | In The Batman Archives (DC, 1990 series) #2 (1991). |
| Characters | Bart Regan |
| Genre | adventure |
| Script | Jerry Siegel (signed) |
| Pencils | Ed Moore (signed) |
| Inks | Ed Moore (signed) |
| Characters | The Crimson Avenger [Lee Travis, in costume with cape]; Wing; Deanna. |
| Genre | superhero |
| Script | Jack Lehti (signed) |
| Pencils | Jack Lehti (signed) |
| Inks | Charles Paris |
| Letters | Charles Paris |
| Genre | fact |
| Script | Henry Boltinoff (signed) |
| Pencils | Henry Boltinoff (signed) |
| Inks | Henry Boltinoff (signed) |
| Letters | Henry Boltinoff |
| Characters | Larry Steele |
| Genre | detective |
| Pencils | Cliff Young (signed) |
| Inks | Cliff Young (signed) |
| Genre | gag |
| Pencils | Stan Aschmeier (signed as Stan Asch) |
| Inks | Stan Aschmeier (signed as Stan Asch) |
| Characters | Speed Saunders |
| Genre | detective |
| Pencils | Ed Winiarski (signed as Win) |
| Inks | Ed Winiarski (signed as Win) |
| Characters | Cliff Crosby; Kay Nevers. |
| Genre | adventure |
| Script | Chad Grothkopf (signed as Chad) |
| Pencils | Chad Grothkopf (signed as Chad) |
| Inks | Chad Grothkopf (signed as Chad) |
| Letters | Chad Grothkopf |
| Genre | adventure |
| Script | Joseph Stone (signed) |
| Pencils | Stan Kaye (signed) |
| Inks | Stan Kaye (signed) |
| Letters | typeset |
| Characters | Steve Malone |
| Genre | detective |
| Pencils | Don Lynch (signed) |
| Inks | Don Lynch (signed) |
| Characters | Slam Bradley; Shorty Morgan. |
| Genre | detective |
| Script | Jerry Siegel (signed) |
| Pencils | Howard Sherman (signed) |
| Inks | Howard Sherman (signed) |