Detective Comics, Vol. 1

When one of the Killer Moth's old henchmen is found dead in his boss' costume, it raises a lot of questions. A coin is found at the scene that seems to implicate Two-Face... except that Harvey Dent is still incarcerated and this coin isdefaced on both sides.

As Batman chases down the dead man's friends to try to learn what he was doing, ripples pass through the Gotham Underworld, making Batman's rogues uncomfortable.