Maud and Guilhem are still on the trail of the evil Baron and his acolytes. With her father's diary and a continuing sense of deja vu at every new place they go to, Maud and Guilhem grow closer in spite of his best intentions. They leave Venice for Istanbul where crossing the desert is full of surprises. When Maud goes missing, Guilhem fears the worst, but Maud is rediscovering her ancestors. Meanwhile the Huet brothers must be stopped in a fight...