"Matt Thorsen is a direct descendent of the order-keeping god Thor, and his classmates Fen and Laurie Brekke are descendents of the trickster god Loki. When Ragnarok--the apocalypse--threatens, the human descendents of the gods must fight monsters to stop the end of the world."--

Unlike her twin brother Frey, twelve-year-old girlgoddess Freya is not excited about their invitation to Asgard Academy, especially after she loses her magical jewel, leaving her powerless and worried about making friends.

When eleven-year-old Pru and new boy ABE discover another world beneath their quiet town, where Viking gods lurk just out of sight, they must race to secure the Eye of Odin, source of all knowledge--and the key to stopping a war that could destroy both human and immortal realms.

"Thor's hammer is missing again. The thunder god has a disturbing habit of misplacing his weapon-- the mightiest force in the Nine Worlds. 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...

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....

With the rainbow bridge closed, Freya and the Valkyries must find another way to try to stop the war that threatens not just Asgard, but the human world, as well.