Magnus and his friends set sail for the farthest borders of Jotunheim and Niflheim in pursuit of Asgard's greatest threat, Loki's demonic ship full of zombies.

After one prank too many, trickster god Loki has been banished to live as a kid on Earth. If he can show moral improvement within one month, he'll be allowed to return to Asgard. If not? Eternity in a pit of angry snakes. School, fake "parents," and an eleven-year-old Thor's farts are pure misery. But when a bigger threat than Loki's mischief comes to Earth, Loki will have to decide whether he's really a villain, or if he might want to do the right...

Norse god Loki records the highs and lows of living on Earth as an eleven-year-old in grumbles, snarks, and doodles in his enchanted diary. He might not have shown any moral improvement (yet); but Odin has given Loki another chance to prove himself worthy of Asgard. Earning everyone's trust isn't easy, however. So far, Loki has managed to make only one human friend, Valerie, but is now irritated to learn that Valerie has made another friend, Georgina....