The Vikings are laying siege to Paris. As the houses on the banks of the Seine burn a debate rages in the Cathedral on the walled island of the city proper. The situation is hopeless. The Vikings want the Count's sister, in return they will spare the rest of the city. Can the Count really have ambitions to be Emperor of the Franks if he doesn't do everything he can to save his people? Can he call himself a man if he doesn't do everything he can to save his sister? His conscience demands one thing, the demands of state another. The Count and the church are relying on the living saint, the blind and crippled Jehan of St Germain, to enlist the aid of God and resolve the situation for them. But the Vikings have their own gods. And outside their camp a terrifying brother and sister, priests of Odin, have their own agenda. An agenda of darkness and madness. And in the shadows a wolfman lurks