Ingrid Torfa lives two lives. In one she struggles to get by as a book illustrator in the tiny town of Runde on the North Shore of Lake Superior in Minnesota. But in the other, she serves as a Norse witch, a volva, in the town of Villmark, where the descendants of a lost colony of Vikings hides inside a pocket dimension far from the reach of the modern world. Usually, balancing the needs of those two worlds dominate her time and energy. But...