The Tenth Ghost - A Beth-Hill Novel: Jacob Lane, #1

Jacob Lane is a ten-year-old girl who's spent her life unaware of her magical heritage. After being sent to Darkbrook, a school of magic, supernatural mysteries seem to spring to life all around her and her new friends. After Jacob Lane's parents mysteriously vanish, she's sent to Darkbrook, the only school of magic in the United States. While there, she and her new friends stumble upon a series of mysterious deaths in the nine ghosts that haunt the halls of Darkbrook.
These ghosts were students who died at the school over the past hundred years. Will Jacob become the tenth ghost, or can she stop a witch's reign of terror?