Fifteen-year-old Billy Pellens is horrified when his parents tell him he has to go to boarding school for a year. It means leaving all his friends and having to adjust to a completely new life. Ok, so big deal? Yeah right, except the spirit of his twin sister Becky, who died at birth, refuses to move on. Somehow, she has always managed to age at the same rate as him, so now she'll be 'residing' with him in a dorm full of teenage boys. Becky may be just a ghost, but she still has wants and needs like any teenage girl. Going to boarding school with Billy presents a whole new world of possibilities. Surely there'll be some like-minded spirits hanging around a place like that? Billy is cool, and she loves him, but sometimes the 'alives' just don't get it. Hellesville College is about to get a long overdue shakeup!