- Script
- Bill Finger
- Pencils
- Bob Kane (signed as Rob't Kane)
- Inks
- Bob Kane (signed as Rob't Kane); Greg Theakston (black and white reconstruction)
- Colors
- Bob LeRose (color reconstruction); Daniel Vozzo (color reconstruction); ? (original colors)
- Letters
- Bob Kane
- Genre
- superhero
- Characters
- The Bat-Man [Bruce Wayne] (introduction); Commissioner James Gordon (introduction); Lambert; Steven Crane (death); Paul Rogers; Alfred Stryker (villain); Jennings (villain)
- Synopsis
- In his first case, the Bat-Man investigates the murder of a chemical tycoon, discovering that one of his partners murdered him to steal the secret contracts that would leave him as the sole owner of the Apex Chemical Corporation.
- Reprints
This is not a reprint of the original story from Detective Comics #27 (May 1939). Instead, it is a redrawn (traced), re-lettered, and censored version which was originally published in Detective Comics #387 (May 1969).
• The knife jutting from the back of the murder victim (page 2, panel 2) has been removed.
• A word balloon where the killer confesses to the crime (page 6, panel 2 - "Sure... I did it! But you won't send me to the 'chair' for it! I'll -- ") has been deleted.
- Script
- Bill Finger
- Pencils
- Bob Kane
- Inks
- Bob Kane; Sheldon Moldoff (backgrounds, verified by Moldoff); Greg Theakston (black and white reconstruction)
- Colors
- Bob LeRose (color reconstruction); Daniel Vozzo (color reconstruction); ? (original colors)
- Letters
- Sheldon Moldoff (verified by Moldoff)
- Genre
- superhero
- Characters
- Batman [Bruce Wayne] (origin)
- Synopsis
- Bruce Wayne's parent are murdered by a cheap crook, and young Bruce vows to avenge their deaths by warring on all criminals.
- Reprints
Splash panel reprinted from DETECTIVE COMICS #34; rest of story reprinted from DETECTIVE COMICS #33.
- Script
- Bill Finger
- Pencils
- Bob Kane
- Inks
- Bob Kane; Jerry Robinson (backgrounds, verified by Robinson); Greg Theakston (black and white reconstruction)
- Colors
- Bob LeRose (color reconstruction); Daniel Vozzo (color reconstruction); ? (original colors)
- Letters
- Jerry Robinson (verified by Robinson)
- Genre
- superhero
- Characters
- Batman [Bruce Wayne]; Robin [Dick Grayson]; James Gordon; Chief of Police Chalmers (Death); Edgar Martin (Death); The Joker (Villain)
- Synopsis
- The Joker escapes from prison to continue his rampage of death and to steal the famed Cleopatra necklace and Fire Ruby.
- Reprints
As recounted in various sources, the Joker was supposed to die of his stab wound at the end of the story, but the editors decided this villain was too good to kill off, so the last panels were re-drawn to show him surviving. The last panel of the story, titled "Golden Rules for Robin's Regulars", introduces readers to "Robin's Code" of conduct.