Phantom, The (Point Horror) by Barbara Steiner - Vintage Paperback

When Reggie Westlake turns up at the school rally marking the start of the football season, the crowd goes wild. He's the greatest player Stony Bay High School ever had. Quarterback and Captain, Reggie led the winning team for two years running, raising the school spirit higher than ever before. No one could forget his black and gold jersey bearing the number nine. He'll always be the school hero, the one everyone loves.

There's just one thing... Reggie's dead.