The Map Maker's Sister — Matthew J. Krengel

Two worlds living beside each, one filled with myth and legend and one of science. Many years ago a great Divide was put in place to protect both worlds, but the Divide will not last forever. Together Jane Timbrill and Jacob have taken the first steps in a great adventure, but suddenly Jacob's life hangs in the balance. Poisoned by the black-robed Adherents and fleeing for their lives, Jane must find a way to save Jacob and her long-lost sister. If she fails, the war is lost and a great evil will spread through Duluth, Minnesota, and beyond.