It's said that if the ravens ever leave the Tower of London, then the Tower will crumble and the kingdom will fall. Resurrected sorcerer Matthew Swift is about to discover that this isn't so far from the truth... One by one, the protective magical wards that guard the city are falling: the London Wall defiled with cryptic graffiti, the ravens found dead at the Tower, the London Stone destroyed. This is not good news. This array of supernatural defenses — a mix of international tourist...