For years, the door has stayed closed. Hannah Silver hardly notices it as she goes about her strange life in an isolated lighthouse. But when a pair of mysterious strangers - a boy and his guardian - show up at the lighthouse, things start to go very wrong. Hannah's life is shattered. In order to save herself and her family, Hannah must walk into another world where she doesn't belong. A world that wants to capture her and make sure she never makes it back home.