Credits

• Pencils: Win Mortimer
• Inks: Win Mortimer
• Letters: Ira Schnapp

Storyline

The Joker follows up an article in the newspaper about a scientist discovering a lost elixir of invisibility and becomes a real terror to Batman until the crime fighter takes some of the elixir himself.

Credits

• Script: Bill Finger
• Pencils: Dick Sprang
• Inks: Dick Sprang

Credits

• Script: Otto Binder
• Pencils: Jimmy Thompson
• Inks: Jimmy Thompson

Credits

• Pencils: Howard Sherman
• Inks: Howard Sherman

Credits

• Script: Henry Boltinoff
• Pencils: Henry Boltinoff
• Inks: Henry Boltinoff
• Letters: Henry Boltinoff

Credits

• Script: Robert Murphy

Credits

• Pencils: Curt Swan
• Inks: Steve Brodie

Credits

• Script: Lit-Win
• Pencils: Lit-Win
• Inks: Lit-Win

Credits

• Pencils: Creig Flessel
• Inks: Creig Flessel