For Ning, the only thing worse than losing her mother is knowing that it's her own fault. She was the one who unknowingly brewed the poison tea that killed her-the poison tea that now threatens to also take her sister, Shu. When Ning hears of a competition to find the kingdom's greatest shennong-shi-masters of the ancient and magical art of tea-making-she travels to the imperial city to compete. The winner will receive a favor from the princess, which may be Ning's only chance to save her sister's life.