- Script:
- Bill Finger
- Pencils:
- Jack Burnley (signed as Bob Kane)
- Inks:
- Charles Paris, Ray Burnley (backgrounds)
- Colors:
- ?
- Letters:
- Betty Bentley
- Genre:
- superhero
- Characters:
- Batman [Bruce Wayne]; Robin [Dick Grayson]; Commissioner James Gordon; Dan Briggs [D]; Tom Horne [villain]; The Thinker [villain, D].
- Synopsis:
- Commissioner Gordon asks Batman to investigate when a series of cons are released from prison and suddenly disappear. The Caped Crusader discovers. after going undercover, that a criminal named the Thinker is gathering and using them to manufacture parts for equipment to be used by the underworld.
- Reprints: show reprint note before migration
Letterer verified by Jack Burnley. Some info and synopsis added by Craig Delich 5-30-09.
- Script:
- ?
- Pencils:
- John Daly
- Inks:
- John Daly
- Colors:
- ?
- Letters:
- ?
- Genre:
- detective-mystery
- Characters:
- Slam Bradley; Shorty Morgan.
Revised pencil credit by Jerry Bails (Nov. 2005). Previously was credited to Howard Sherman.