Opéra Garnier -The phantom of the Opéra

In 1907, a wall was demolished in the cellars of the opera and behind this wall , a small apartment was discovered . It was fully furnished and equipped .It appeared to have been abandonned a long time ago .Curiously, there seemed to be no entrances anywhere.Another discovery was made ,the corpse of a man with completely asymetrical features was found .The skeleton was wearing a huge gold ring on his left hand with the initials C.D.