Synopsis:
Batman and the Joker (possessed by Deadman) discover a hidden wing of Arkham. There, they meet Sensei, who has arranged a duel with the Batman as his old foes look on.
Later, Batman learns from Ra's Al Ghul that Sensei plans to usurp his leadership of the League of Assassins. In order for this to be thwarted, Ghul says that Batman MUST kill Sensei.