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The future. Twenty years later, Bruce Wayne wakes up in Arkham Hospital. He is young and in his right mind. He... has never been Batman.

To unravel the mystery of his past, the Dark Knight embarks on a long journey and meets future versions of friends and enemies. In particular, with a disgusting fellow traveller - the Joker's head. For some reason, the Joker's still alive, severed head becomes Batman's gruesome guide through the vastness of the mutilated DC Universe.
This may be the last Batman story...