Mysteriously, Gabriella's dressing room was none other than Christine's old one. One day, as she sat in her dressing room, she heard beautiful singing. It was as if and angel was in her room. "Who is singing?" asked Gabriella. "Why, don't you know?" the voice asked, "I am the Angel of Music." Gabriella gasped in surprise. The voice said "I will teach you how to sing even more beautifully than you do now, but only if you do not tell anyone about our lessons or me. I will leave if you do." "I won't tell a soul." answered Gabriella. Lessons went on for weeks and weeks. Gabriella didn't tell anyone about the Angel of Music. Then, one day, things changed. A plague of rats seemed to come out of nowhere and filled the room. Gabriella was about to scream when a hand covered her mouth. Then, she fainted. Eventually Raoul and Christine came into the dressing room looking for her. They found a note on the dresser. It read:

If you want Gabriella back, Raoul and Christine must come and get her. You know where we are.
Sincerely,
Rat Catcher

Christine's face turned white. "The Rat Catcher." said Raoul with a pensive look on his face "The Rat Catcher!" repeated Raoul with surprise. "Who is the Rat Catcher?" asked Christine. "The Persian and I ran into him on our way to rescue you." answered Raoul, "He must want revenge."