Gauthier is in Acre, awaiting the arrival of Sybille, his sister – a woman with a scandalous reputation he hasn't seen in many years. Meanwhile, the Assassins, working for the Djinn Ottar Benk, are still after him, convinced that he is in possession of the dangerous 'treasure' that Benk covets. To force the knight to show himself, they begin to foment trouble in the city, held by the Christians.