BATMAN #674

More secrets of Batman are revealed! Batman finds himself in a torture chamber facing the last and deadliest of the three Batman replacements…and finally learns the tragic story of how they came to be! With a shocking appearance by Bat-Mite, this tale leads to more revelations about the young Batman's participation in a bizarre isolation experiment as we learn how the terrifying consequences of his actions will alter the Dark Knight's life in the months to come.