Angelica Schuyler And her sisters , Eliza , And Peggy , After their father had died Were sent to live in an Opera house , With George Washington one of her fathers close friends . Her father had told her , ' Child , when I'm in heaven I will send to you the angel of music ' One night when she is at her mirror after a show a voice calls out to her ' Angelica~ ' After a few years of her life spent in the opera house , She had come to know and fear the ' Phantom ' But who is the phantom? And why was he doing what he was doing?