Underworlds
4 primary works
Book 1
Book 2
Book 3
"Loki is waging war, and Pinewood Bluffs is about to become his battlefield. Owen, Dana, Jon, and Sydney know they have to stop him. They'll do whatever it takes"--Page 4 of cover.
Book 4
Owen, Dana, Jon, and Sydney must find a crystal rune before Norse trickster Loki uses its power to destroy their world.