who wrote the phantom of the opera music

They took the train one day from 'the northern railway station of the world.'. She was represented as the victim of a rivalry between the two brothers and nobody suspected what had really happened, nobody understood that, as Raoul and Christine had both disappeared, both had withdrawn far from the world to enjoy a happiness which they would not have cared to make public after the inexplicable death of Count Philippe. What had become of that wonderful, mysterious artist of whom the world was never, never to hear again?.

The kidnapping of the artist, the death of the Comte de Chagny under such exceptional conditions, the disappearance of his brother, the drugging of the gas-man at the Opera and of his two assistants: what tragedies, what passions, what crimes had surrounded the idyll of Raoul and the sweet and charming Christine!. There is no need to repeat here how greatly the case excited the capital. There are to-day so many proofs of his existence within the reach of everybody that we can follow Erik's actions logically through the whole tragedy of the Chagnys. As I declared on the first page of this work, it is no longer possible to deny that Erik really lived. I HAVE now told the singular, but veracious story of the Opera ghost.

Who wrote the phantom of the opera music