Poisoned

 "Why are you here?"

 Qing Qing's face clouded over as she looked at the two of them.

 The visitor replied icily, "If I didn't come, you would have treated yourself as this family's daughter-in-law. Did you find out anything?"

 Qing Qing hid the strange look in her eyes. "People are not that easy to deceive. Shouldn't I gain their trust first? I got two pieces of news today. I know where the entrance and exit is. There's only one opening. Also, the people here plan to build a road."

 "That's all?"

 Qing Qing frowned. "That's all."

 "It's been so long and we still haven't found the place where His Highness is imprisoned. How are we going to answer to Master when he asks?"

 "I will continue to gather information. You guys should also think of a way to gather information in the city."

 While they were talking, light footsteps could be heard outside the door. The two of them became tense at once.