"The Protector of the Small" is a fantasy series by Tamora Pierce that follows the journey of Keladry of Mindelan, a young girl who aspires to become a knight in a world where women are often discouraged from pursuing such roles. The story explores themes of courage, determination, and the fight for equality as Kel faces various challenges in her quest to prove herself. Set in the Tortall universe, the series highlights Kel's growth as she navigates friendships, rivalries, and her responsibilities as a protector of the weak. Through her experiences, readers witness her development into a skilled knight, showcasing the importance of perseverance and self-belief.