One of the "Jonathan's Ghost" stories. Everybody is impressed by the clever, wealthy, sporty "superstar" in Jonathan's class - except Dave the ghost. Only Dave, with his special powers, can explain the stealing and the freak accidents, and is able to save Jonathan when real danger arises.
Used availability for Terrance Dicks's Jonathan and the Superstar
January 1991 : UK Hardback
April 1992 : UK Paperback