In the Hand of the Goddess (Song of the Lioness, Book 2)

From Tamora Pierce, the second book in the Song of the Lioness Quartet, honored with the Margaret A. Edwards Award.

Alanna, disguised as a boy, becomes a squire to none other than the heir to the throne. Prince Jonathan is not only Alannas liege lord, he is also her best friendand one of the few who knows the secret of her true identity. But when a vicious sorcerer threatens the princes life, it will take all of Alannas skill, strength, and magical power to protect him, even at the risk of surrendering her dreams