Traveling to the Underworld to save a friend who has been poisoned, Norse descendants Matt, Fen and Laurie band together to unite the challengers, find Thor's hammer and prevent an apocalypse. By the
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-old Matt Thorsen and Fen and Laurie Brekke, modern-day descendants
