My name is Magnus Chase. Two months ago I died fighting a fire giant and woke up in a Hotel Valhalla as one of Odin's Warriors. Time for a rest? I wish. When I meet Otis, an informant with a lead on Thor's missing hammer, all I get is the name 'Provincetown' before a wolf-masked assassin takes him out and warns me to stay away.  Someone really doesn't want me to fin the hammer and even if I could it's rumoured to be underground, guarded by powerful magic. But giant armies are on the move, prepared to invade. If I don't find it, they'll ravage in the Nine Worlds, starting with the streets of Boston. There is just one person who could help. Someone who demands a very high price: the gods' worst enemy, Loki. 

The second book in The Magnus Chase Series.