Not as good as Loeb's The Long Halloween, but a good Batman whodunnit graphic novel. Also the illustrations by Jim Lee were PHENOMENAL! I loved Jim Lee since I first started reading comics and even tried reproducing some of my faves of his. Jim Lee's artwork alone is enough to get this book. Throw in an interesting story where the World's Greatest Detective has to solve a mystery that pits him against an adversary that knows everything about him and you got two great reasons to pick this up and read it!