While visiting Norway, sixteen-year-old Ellie must step out of the shadow of her popular older brother, join forces with his infuriating best friend, and embrace her Valkyrie heritage to rescue teen boys kidnapped to join the undead army of the ancient god, Odin.

Having long wondered what lives beyond the ice shelf, nineteen-year-old mermaid Ersel learns of the life she wants when she rescues and befriends Ragna, a shield-maiden stranded on the merfolk's fortress. But when Ersel's childhood friend and suitor catches them together, he gives Ersel a choice: say goodbye to Ragna or face justice at the hands of the glacier's brutal king. Determined to forge a different fate, Ersel seeks help from the divine Loki....

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....

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.