Rules for the Ballet of the Flowers: 1. The invitations must be perfect. 2. You must pick a beautiful flower. 3. Your dance must be graceful. At Tall Towers Princess Academy, the Ballet of the Flowers is a very special performance. But Grace just can't seem to get it right. First, she ruins the invitations when she falls off her unicorn and into the mud. Then she picks a flower called dragon's heart, but it smells more like dragon poo! And graceful? Well, that's just not Princess Grace. She has much more important things on her mind, such as whether a real dragon is living near her school! But will Grace's secret new friend mess up the ballet performance?