"Thor's hammer is missing again. The thunder god has a disturbing habit of misplacing his weapon--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 the hammer quickly, the mortal worlds will be defenseless against an onslaught of giants. Ragnarok will begin. The Nine Worlds will burn. Unfortunately, the only person who can broker a deal for...

An unlucky twelve-year-old Norwegian boy named Odd leads the Norse gods Loki, Thor, and Odin in an attempt to outwit evil Frost Giants who have taken over Asgard.

It's the start of summer vacation, but for 10-year-old Louisa Brooks, things look grim. Her family just moved to a new town, where Louisa knows no one. She has no idea that lurking in her town is an unwelcome visitor from a distant world and she's about to come face-to-face with the terrible Trull! Includes full-color comic insert and character power grids in the back of the book! "Warning! High voltage...Trull, Trull, Trull, Trull... When an alien...