Minli, an adventurous girl from a poor village, buys a magical goldfish, and then joins a dragon who cannot fly on a quest to find the Old Man of the Moon in hopes of bringing life to Fruitless Mountain and freshness to Jade River.

Escaping from the prison where he was born, Pong discovers harrowing truths about the gap between the world's privileged ruling class and impoverished laborers, while the prison warden's daughter who is hunting him uncovers other daunting secrets.

A peasant girl and her holy greyhound, an oblate on a mission from his monastery, and a young Jewish boy travel across medieval France to escape persecution and save holy texts from being burned.