When Ragnarok--the apocalypse--threatens, the human descendants of the gods band together to fight monsters, and Matt Thorsen and his friends must journey to the underworld to save a descendant.

Magnus Chase has always been a troubled kid. Since his mother's mysterious death, he's lived alone on the streets of Boston, surviving by his wits, keeping one step ahead of the police and the truant officers. One day, he is tracked down by a man he's never met -- a man his mother claimed was dangerous. The man tells him an impossible secret: Magnus is the son of a Norse god. The Viking myths are true. The gods of Asgard are preparing for war. Trolls,...

"When a banished witch falls in love with the legendary trickster Loki, she risks the wrath of the gods in this fierce, subversive debut novel that reimagines Norse myth. Angrboda's story begins where most witch's tales end: with a burning. A punishment from Odin for refusing to give him knowledge of the future, the fire leaves Angrboda injured and powerless, and she flees into the farthest reaches of a remote forest. There she is found by a man who...