Tom Golden would have been a normal eleven-year-ol, except that his best friend is a ghost. Grey Arthur's job, as an invisible friend, is to supply Ton with forgotten lunches and pens for class, and to keep bullies away. In this sequel to "Golden & Grey: An Unremarkable Boy and a Rather Remarkable Ghost", Grey starts a school for ghosts who are looking to begin new careers as companions to human children. Along with an assorted group of endearing and quirky ghosts, Tom and Grey must solve the mystery of why ghosts all over the world are disappearing at the hand of the Collector.