From the ancient legends of the Aztecs, comes the story of a love as enduring as a mountain: The Aztec Emperor has many children, but Princess Izta is dearest to his heart. The Emperor has enemies as well, but he also has brave warriors, and Popo is one of the best. Popo cares only about battle . . . until he meets Izta. To prove his worth he accepts a difficult task, but he promises Izta he will come back to her and watch over her—always. With jealous rivals plotting against him, will Popo find a way to keep his vow?