Best-selling comic book writer/director Kevin Smith (GREEN ARROW, Daredevil, Mallrats, Chasing Amy) steps into Gotham City to write this graphic novel featuring the mysterious masked killer known as Onomatopoeia who sets his sights - and sounds - against The Caped Crusader! Will Batman be able to uncover the relationship between The Joker and Onomatopoeia in time to keep them from destroying Gotham City? Or is the combination of these villains too much for The Dark Knight to handle? The wild ride that caught Batman between The Joker and Onomatopoeia comes to a crashing halt as Batman is forced to choose between capturing Onomatopoeia and saving The Joker's life! Will Onomatopoeia have the final word with a deadly 'Bang!'? Find out in this exciting stand-alone story!