chapter 152 woman with sunglasses

Professor Zhong sighed, then looked at Chuck Hao curiously and asked, "But you, how did you know?"
"The first time I went to your house, I felt something was wrong. When I was chatting with you, you said that Xiao Meng was the only person you had contact with during that time."Chuck Hao said, "But this time, you were poisoned by a parasitic toxin, which could only be done by people. I asked Xiao Meng, and he said that you have not been in contact with other people these days, so it can only be...