Mike seems to go todash when he visits the Freburg Fair, and returns to the real world via a door. The house is a twinner of the house in the last book in the series, and some of the places in the area are mentioned in both books. The house seems to slip through time, and into other worlds and the air around it is "Thin", an 'Outsider' possesses and enhances the ghost of Sara Tidwell this outsider is from another world, maybe Rolands. Kyra ia probably the cause of the events in this book, with the antagonists being possible agents of the Crimson King, trying to make Kyra a Breaker.