Batman: Detective Comics Vol. 1: Mercy of the FatherOver the years, the Caped Crusader has faced down foes of all different shapes and sizes, from killer mutants to cosmic deities and everything in between. Now, however, he finds himself staring down an enemy like never before: The cold and uncaring march of time! Over the years, the Caped Crusader has faced down foes of all different shapes and sizes, from killer mutants to cosmic deities and everything in between. Now, however, he finds himself