Cinderella's Magic Adventure

From the back of the book Cinderella wants to go to the Prince's ball, and it's up to you to help her! You are on your way to the Prince's ball, when your coach passes a young girl sitting on the bench, crying. She tells you her name is Cinderella and that she is unhappy because her stepmother and stepsisters won't let her go to the ball. You want to help her- but what can you do?