| Release: | Jul 1940 |
| Cover: | Jul 1940 |
A Master Murderer
| Release: | Jul 1940 |
| Cover: | Jul 1940 |
A murder and a kidnapping take place at a local private school, so Bruce enrolls Dick for some undercover investigation. The list of suspects is long, with a fired teacher, a greedy principal, a stuck up art teacher, a strange history teacher and an escaped homicidal maniac all on the grounds.
| Writer | Gardner Fox, Jack Lehti, Chad Grothkopf, Bill Finger |
| Artist | Chad Grothkopf, Bob Kane, Fred Guardineer, Ed Winiarski, Howard Sherman, Jack Lehti, Gardner Fox, Maurice Kashuba |
| Cover Artist | Bob Kane |
| Cover Inker | Jerry Robinson |
| Inker | Jerry Robinson |
| Letterer | Jerry Robinson, Chad Grothkopf, Fred Guardineer |
| Editor | Whitney Ellsworth |
| Batman | Bruce Wayne |
| Age | Golden Age |
|---|---|
| Format | Comic |
| Series Group | Batman |
| Genre | Adventure | Crime | Super-Heroes |
| Country | USA |
| Language | English |