The result of the DNA testing came out. It turned out that the probability of Dottie being his relative was zero, which made Michael shocked.
Which meant the woman wasn't the real Dottie. Someone posed as her.
That was why her voice changed.
Plastic surgery could change her look but could not change her voice. So she pretended that her voice was broken.
"Why did she pose as Dottie? Did she want to cause conflict between the Mullers and the Langstons?"
Michael thought about what Shane said to him. Penny once abetted Dottie to become enemies with the Mullers, and there must be someone behind Penny.
So the fake Dottie must be incited by the same person. "Who's behind this? What hatred does he have against us?"
Michael felt dizzy from this mess. Just then, Mr. Langston called him, "Michael, where have you gone? You should be with your sister now.
Get back to the room. We have something important to tell you."