Thank you Thank you Thank you Grant Morrison for The Black Casebook. The mysterious tome, introduced in Batman #665, is a brilliant way to incorporate those wacky '50's Batman stories into continuity. Best of all, as far as I'm concerned, The Batman Creature is now officially IN CANON.
You read the mind-shattering tale of the Batman Creature here at Again With the Comics, but what other mad, reality-twisting tales lurk within the Black Casebook? Look and see, but beware...once seen, such images of inexplicable unreality cannot be unseen!
That's right! It all happened, and it's all in The Black Casebook.