Thor\'s Hammer is missing again.
Unfortunately, the only person who can broker a deal for the hammer\'s return is the gods\' worst enem.
The Nine Worlds will burn.
Ragnarok will begin.
If Magnus Chase and his friends can\'t retrieve the Hammer quickly, the mortal worlds will be defenseless against an onslaught of giants.
But this time the Hammer isn\'t just lost, it has fallen into enemy hands.
The thunder god has a disturbing habit of misplacing his weapon - the mightiest force in the Nine Worlds.
Thor\'s Hammer is missing again