Issue: #403 REP
Tommy Carma escapes from Arkham Asylum and discovers a mysterious cave...a cave with a giant penny and dinosaur...The former cop who was convinced that he was Batman (see Batman 402) escaped Arkham after killing two guards who he thought was Joker and Two-Face. He happened upon the Batcave, stole an outfit, and stole the car. The real Batman realized what was going on and tracked the impostor down...
Creators: Adrienne Roy, Dennis O'Neil, John Costanza, Dick Giordano, Denys Cowan, Max Allan Collins, Greg Brooks
Characters: Batman, Alfred Pennyworth, Joker, James Gordon, Two-Face, Vicki Vale, Jason Todd, Tommy Carma