Her sister works in the quarry with her father and Miri does the house work because she is too small to work in the quarry.
One day men arrive from the lowlands where the king lives and announces that all of the girls ages 12-17 will be taken to the Princess Academy where they will learn to be proper ladies.
A year later, the prince will come and choose one of them to be his future wife. The girls are treated very harshly by their teacher, but forge great friendships.
The prince chooses Miri's friend, and Miri returns to Mount Eskel where she plans to start a school to teach everyone in her village to read.
Twelve Dancing Princesses Series by Jessica Day George
The Two Princesses of Bamarre by Gail Carson Levine
Once Upon a Marigold by Jean Ferris