Harry Dresden, Chicago´s only professional wizard, is about to have a very bad day. As Winter Knight to the Queen of Air and Darkness, Harry never knows what the scheming Mab might want him to do. Usually, it´s something awful.
This time, it´s worse than that. Mab´s involved Harry in a smash-and-grab heist run by one of his most despised enemies to recover the literal Holy Grail from the vaults of the greatest treasure horde in the world - which belongs to the one and only Hades, Lord of the Underworld.
Dresden´s always been tricky, but he´s going to have to up his backstabbing game to survive this mess - assuming his own allies don´t end up killing him before his enemies get the chance . . .