- Script:
- Bill Finger
- Pencils:
- Dick Sprang (signed as Bob Kane)
- Inks:
- Dick Sprang
- Colors:
- ?
- Letters:
- ?
- Genre:
- superhero
- Characters:
- Batman [Bruce Wayne]; Robin [Dick Grayson]; The Joker (villain).
- Synopsis:
- The sound effects from a radio drama spur the Joker to institute a new crime idea: that of using sound to create panic among the city's populace in order to make easy scores.
- Reprints: show reprint note before migration
Pencil credit verified by Sprang. Inker credit revised & verified by Craig Delich (Nov. 2005). Inker credit previously given to Howard Sherman? Gene McDonald? Synopsis added by Craig Delich 1-6-08.
- Script:
- Joe Samachson?
- Pencils:
- Jimmy Thompson
- Inks:
- Jimmy Thompson
- Colors:
- ?
- Letters:
- ?
- Genre:
- superhero
- Characters:
- Robotman [Paul Dennis]
Writer credit by Martin O'Hearn.