Gems of Fire by Diane E. Samson

Palace of Sunderland. Paradise to the peasants. Prison to sixteen-year-old Anna, daughter of the king. She can never escape the castle’s cold walls and scorning disapproval of her father and his brute royal counsel, Seamus. She’ll always live in the shadow of her late mother, the queen. Will they ever see her for who she really is?

A riding accident lands Anna in the hands of traders who sell her as a slave in distant Kasdod to none other than her father’s enemy, Lord Anwar. After overhearing a dangerous plot to conquer Sunderland and kill the royal family, Anna must escape and warn her father, even if it means facing her greatest enemy.

With the doom looming over her, Anna is approached by a dangerous man in the dark. He claims to want to help her, but can she trust him with her secrets? The perils of the journey ahead will push Anna to the limit and answer the one question that has always plagued her...

Will she ever be enough?