A murder in Berlin . . . The discovery of horribly mutilated bodies on the streets of London . . . A secret society is being hunted by a terrifying, unstoppable force . . . A traitor One of them has broken an ancient oath. For this, the rogue lycanthrope must be caught and killed. The heyday of the League of Lycaon is long gone. Numbering less than a dozen, their strength and unity is waning. All it will take to destroy them utterly is exposure, something the killer knows only too well. And the clock is ticking. Unless the killer is unmasked and the threat ended, the League and all its members will face extinction. The dog days are over.