Fisherman, Fish and Bait

Yin Xia did not speak back, as she knew that if she was to retort then she would only get herself into trouble. Her father was already worried enough because Yin Zhu had gone missing, and she did not want her father to suffer anymore. Thus, she lowered her head and said, "I understand, Mistress." And went back to work. 

An hour had passed by and Yin Zhu was now sitting on the floor with a twisted arm. Her body was aching with excruciating pain that Lord Ren had caused her, she wanted to use her powers on the old man but when she thought about how this old man was a pervert she held back. In case, he was to find out about her identity then he would definitely try to drag her out of this prison and lock her up for his amusement. 

Given that this man could order the old woman to be killed without anyone bothering to even question him was enough to let Yin Zhu know that this man was not of simple background.