The Third Gift — David Armstrong

Charlie Hall doesn't want to leave his home and friends, but his father persuades Charlie and his mother that moving to another town where nobody knows them is their only hope for a better life. When the Halls arrive at their new home, Charlie meets a quirky teenage boy and an eccentric older couple who live across the street in an antebellum home--one they claim is haunted by spirits that grant requests, once they're appeased with a gift. Charlie's first two requests of the spirits are soon granted, but he has no third gift for his desperate third request.