To stop a war, he must save an angel. Jon Tanner can walk through the dark shadows into a land he calls Shadow Realm. The Catholic Church calls it Purgatory, gateway to hell, limbo of lost souls. Tanner, a loner, must deal with a beautiful dream Walker in the search for her Shadow Walker brother. When Tanner realizes the demons of Shadow Realm are preparing for a war with the real world, he decides to walk into hell itself to end it.