Detective Comics #538

Catman's cellmate, Collins, breaks out of jail according to the plan created by Batman and Commissioner Gordon. Collins was made believe that Catman succeeded in stealing a prized object from the Gotham Museum and defeated Batman thanks to his magic suit and in order to prevent Catman from taking the loot he has gathered over the years, Collins set out to stop his former cellmate.

When Collins arrives in Gotham, he steals Catman's costume to give him more “lives” to risk and he starts testing the costume at every possible chance. Batman has to save the fool several times from killing himself and the crook starts believing that the costume is indeed magical. Without any concern in the world, Collins goes to find his hidden loot in some caverns outside of Gotham and Batman follows closely.

Collins eventually makes it to the place where he hid his stolen loot, but he creates a cave-in, forcing Batman to save him once more. As the cave is totally changed, Collins goes to the nearest light source and much to his surprise, he finds himself inside the Batcave. Collins starts destroying the place, but Batman recovers shortly after and confronts the madman in the Batcave. Collins uses the Giant Penny against Batman, but the Dark Knight, in turn, uses the T-Rex to stop the attack. When Collins is finally cornered, Batman beats him to a pulp and with the loot already retrieved, he and Robin deliver the criminal to the authorities.

When Bruce and Jason return home, they find small trouble at Wayne Manor, where Vicki Vale has learned that Julia has been living there for quite a while and she doesn't like the news a little bit.