Request #295 From McKenna

I remember reading this book in elementary school early 2000’s (like 2007). I am now a college junior and have been searching for this book for ages.   All I can remember is that it was a female or princess camp where their father sent them away to learn how to fight and become proper women. They were supposed to have a day to find a husband and be matched up, but their secluded mountain for training got attacked. And all of these young women fighters had to fight them off.