Tamora Pierce

Disguised as a boy, Alanna of Trebond becomes a squire, to none other than the prince of the realm. But Prince Jonathan is much more to Alanna; he is her ally, her best friend, and one of the few who knows that she's really a girl.

In the medieval and fantastic realm of Tortall, Keladry of Mindelan (known as Kel) is the first girl to take advantage of the decree that permits females to train for knighthood. Up against the traditional hazing of pages and a grueling schedule, Kel faces only one real roadblock: Lord Wyldon, the training master of pages and squires. He is absolutely against girls becoming knights.

When Keladry of Mindelan is chosen by the legendary Lord Raoul to be his squire, the conservatives of the realm hardly think she's up to the job. Kel quickly proves her ability as a jouster, warrior, and guardian of a fiery griffin, ultimately earning respect and admiration among the men, as well as the affection of a fellow squire.

When Daine comes down from the mountains, she carries with her two things: a dark secret about her own past, and a strangely powerful magic that even she doesn't understand.

Soon Daine has a job working for Onua, the queen's horsemistress, who is astonished at the girl's way with animals. It's almost as if she can speak to them....