The next morning, xiaoli wakes up to find that another man has been murdered. This man's head has been found in the trash, and it turns out to be that of huang . . He's a young man with a short stature, like a 9-year-old child. The fourth lady's son is the same age as huang, and the fourth lady must have stolen his mother's baby. She then killed her sister, who came to help her, to protect her identity. The huangs have found the map, but they can't figure out who it belongs to. They're not sure if the map belongs to the huang clan, because the emperor has set up a department to find the key to the map.