THE CAN'T-MISS FINALE OF BATMAN: OFF-WORLD! Batman is ready to return to Gotham City to apply all that he's learned from his unbelievable adventure in the farthest reaches of the cosmos — but unfortunately, the Blakksun Twins still have one last lesson for him... a lesson in exploring the final frontiers of pain! It's the brutal, surprising finale to Jason Aaron and Doug Mahnke's Batman epic!