Tales From The Dark Multiverse: Knightfall (my version).

Now many of you know the story Knightfall story of which Batman's back was broken by bane and Jean-Paul Valley aka Azrael become the bee Dark Knight and would ultimately turn the vision of Batman Into something darker and meaner, eventually Bruce would return to retake the mantle of the bat from Jean-Paul. But unlike in the main story of the original tales of the dark multiverse story. In this world he is not successful in rescuing Jean Paul from self destruction.