Ghosts on Board, 3Paperback, 1 June 2016

Victor the ghost is desperate to get off dreary Black Hall Island, so he steals a ride on an unsuspecting tourist boat back to Bywater-by-Sea. Two other ghosts--the terribly vain Flora Rose and the lonely but friendly Billy--know he is up to no good, so they follow him. Victor soon realizes that the town is not what it seems, and his new ordinary friends, Tom, Jacob and Eric, have some very unusual powers.