A #1 New York Times Bestseller As Winter Knight to the Queen of Air and Darkness, Harry Dresden, Chicago?s only professional wizard, never knows what the scheming Mab might do . . . and she?s just traded Harry?s skills to pay off a debt. Now he must help a group of supernatural villains ? led by one of Harry?s most dreaded enemies ? access the highest-security vault in the Nevernever to recover the literal Holy Grail from the vaults of Hades, Lord of the freaking Underworld.
