Batman Arkham Knight: The Official Novelization

A New knight. Gotham City is in chaos as the criminal organizations seek to fill the void left by the death of the Joker. When Scarecrow threatens to unleash a toxin that will kill thousands, the result is uncontrollable panic. Batman sets out to stop the madman. Then a new figure intervenes—the Arkham Knight, and he seems to know everything there is to know about Batman and his allies.