All my friends are ghosts
(Book)

"Effie feels like a ghost. Misunderstood by her classmates and teachers, it's like she just doesn't belong. One day, feeling frustrated and lost, Effie wanders into the woods and discovers something spectacular...a school for ghosts! While she learns all about the amazing things that ghosts can do - like possession, poltergeist-ing, demon magic and more - Effie and her new spirited friends take on the challenge of tracking down and freeing a lost soul. But it will take more than ghostly powers to succeed. If Effie's going to help, she'll have to look deep within herself and trust the support of her friends, proving that seeing isn't always believing" -- back cover.