Loki the trickster god is free from his chains. Now hes readyingNaglfar, the Ship of the Dead, armed with a host of giants and zombies, to sail against the Norse gods and begin the final battle of Ragnarok. Its up to Magnus Chase and his friends to stop Lokis plans. Along the way, they will face angry sea gods, hostile giants, and an evil fire-breathing dragon. But Magnuss biggest challenge will be facing his own inner demons . . .