Duluth, Minnesota, is finally at peace and things are getting better on both sides of the Divide. However, dark forces are lurking. When Tasker the dwarf is kidnapped, Jane, Jacob, and the others realize something horrible is about to happen. Soon it becomes obvious that they need help and with Coronia, a lonely mermaid, they set off on a quest to find the machine that generates the Divide. They go in search of the legendary Lady of Woods Lake, a mysterious woman who holds great knowledge. From the Lost Forty, to the waters of Lake of the Woods, and to the depths of the Soudan Mine, their journey takes them across the lands of northern Minnesota. Little do they know that when they reach their journey's end, a terrible sacrifice will be demanded of them all.