Seven kids, Thor's hammer, and a whole lot of Valkyries are the only things standing against the end of the world. When thirteen-year-olds Matt Thorsen and Fen and Laurie Brekke, modern-day descendants of Thor and Loki, discovered they were fated to take the places of the Norse gods in an epic battle against the apocalypse, they thought they knew how things would play out. Gather the descendants standing in for the gods, defeat a giant serpent, and...