I liked the line "send the prince's head back to his mother" in the prologue. That was the strongest point of tension for me. I'm not a fan of long prologues -- especially since chapter one immediately jumps us to who I assume is the main POV character, Kailin. If you want to keep the best parts of the prologue while anchoring the manuscript to Kailin from the beginning, maybe have her read about it for class or ask her tutor.