The Lost Kingdom of Bamarre: 12/16/17
The Lost Kingdom of Bamarre by Gail Carson Levine is prequel to The Two Princesses of Bamarre (2001). Peregrine is the adopted daughter of Lord Tove and Lady Klausine. She is being raised as a Latki with the subjugated Bamarre as her servants (one of whom is her biological sister).
As she comes of age she begins to realize something is amiss and as she is to join her father on the front lines in battle, she is hit with the truth, that she is actually Bamarre. She has to chose — to hide that truth or use her position to help her people.
Peregrine's voice through out is very stilted. Granted it is there to portray the formality of the court and her position, but other Levine novels usually rely on more natural dialog, making her people — and her monsters — seem more alive.
The other problem is one of pacing. From the very beginning Peregrine relates her adoption. So when her "parents" require her to call them by very formal means, it sounds as is she already knows the secret. Later when she comes to learn the truth her shock doesn't play as genuine.