Phantom Of Manhattan by Frederick Forsyth

It was 1882 when Antoinette Giry took her daughter to the funfair at Neuilly. There in a cage she saw a manacled creature whose tormented eyes shone from a grotesquely deformed face. Antoinette freed him and cured his wounds. The creature Erik whose hideous face hid a brilliant brain of neargenius was now to become the Phantom of the Opera. Paperback softback