A #1 New York Times Bestselling AuthorMagnus Chase and the Gods of AsgardThor's hammer is missing again. The thunder god has a disturbing habit of misplacing the mightiest force in the Nine Worlds. But this time the hammer isn't just lost, it has fallen into enemy hands. If Magnus Chase and his friends can't retrieve it, the mortal worlds will be defenseless against an onslaught of giants.