If it's weird, if it's strange, if it's supernatural, the Ghost sisters love it.Kat and Marie Bench love ghosts. When their divorced mom moves them to her hometown in Colorado, the sisters discover a real specter haunts their school. The ghost of a young girl cries, slams lockers, and leaves mysterious messages in Hallway B. Armed with ghost-hunting tricks they picked up from books and TV, the resourceful sisters set out to find the identity of the...