Han Xu wasn't surprised when he saw the surprised look on Cheng Zi's face. After all, even he felt that it was incredible that a mosquito could become substantial evidence. "A mosquito? Can this thing solve a crime?" Chengzi opened his mouth wide, feeling that Han Xu was teasing him. Han Xu nodded and explained, "Song Jia'er said that if you are lucky, the victim's DNA sample can be extracted from the dead mosquito, which may become decisive evidence!" Chengzi was completely confused, "Can you still play like this? Today's technical methods are too scary." Han Xu smiled and said, "Isn't that right? Generally speaking, what can significantly increase the detection rate is not some mysterious thing in psychology, but a mature technical method, such as this one, although it sounds quite good. It’s mysterious, but I heard from Jia’er that a few years ago, a senior extracted a DNA sample from a mosquito, thus identifying the murderer.” "My dear, it's all about technology and hard work!" Chengzi didn't know what words to use to describe it, so when he came up with this sentence, it was quite realistic. After hearing this, Han Xu smiled and did not respond. Just at this moment, the little mute who was sleeping on the bed seemed to hear something and opened his eyes in a daze. Chengzi hurriedly came over and asked in a gentle voice, "How are you doing? Are you feeling better?" The little mute looked at Chengzi's big round face, almost blocking Han Xu behind him, and understood that they were all caring about him, so he nodded heavily.
When Chengzi saw this, he couldn't help but beam with joy and looked back at Han Xu. Han Xu raised his hand and looked at his watch. It was almost lunch time, so he said to Chengzi, "It's lunch time, Chengzi. You can go to the cafeteria and call back. Let's eat here." Chengzi responded, turned around and left the dormitory. Han Xu took the time to sit in front of the little mute's bed and apologized, "Little mute, I'm sorry, it's my fault, I shouldn't have let you see those things." Seeing Han Xu's clear and sincere eyes, the little mute didn't know how to express himself for a moment. He shook his head and nodded again, making Han Xu a little confused. However, Han Xu could still see some understanding in the little mute's eyes that seemed to be talking. Han Xu's hanging heart finally calmed down, and then he talked to the little mute for a while. Of course, it was just Han Xu talking and the little mute listening, so the scene was surprisingly harmonious. After about ten minutes, Chengzi brought back a rich lunch from the canteen. "I think the little mute has poor nutrition, so I ordered a few extra dishes!" Chengzi placed a large bag of meals on the table in the dormitory and turned around to explain. Han Xu stood up calmly and took out the steaming lunch boxes one by one. "I'll go, there are so many, have you finished eating?" "How old is it now? I'm still here, aren't you? Are you afraid you won't be able to finish it?" Cheng Zi patted his chest, but exposed the fox's tail. "Okay, little mute, come and eat quickly!" Han Xu couldn't do anything with the oranges, so he turned around and said to the little mute. The three of them got together and had a makeshift lunch. "Do you have any plans for the afternoon?" Chengzi asked Han Xu, wiping his mouth. Han Xu saw that the little mute's body was fine and said, "Let's wait for the news and see what's going on with Song Jia'er." Chengzi nodded and asked the little mute again, "Are you full?" The little mute nodded in response, but fixed his gaze on Han Xu, as if he wanted to say something, but couldn't express it. Cheng Zi's sharp eyes realized this detail and casually pulled Han Xu, "Little mute, I seem to want to say something to you!" Han Xu turned his head in confusion and looked at the little mute. From his eyes, he could see that he was hesitant to speak.
"Do you have a pen?" Hearing this, Chengzi immediately understood that Han Xu wanted to play with turtle soup again, but when he touched his body, there was nothing. Upon seeing this, Han Xu thought for a moment and gave up asking in the turtle soup way. Instead, he said to the little mute, "Let's communicate in the old way. If so, just nod twice. If not, shake your head." Nod your head three times, okay?” Chengzi frowned when he heard this, "This head will be shaking, right?" But in order to be more accurate, there is no other way. The little mute didn't mind at all. He nodded twice in cooperation and shook his head three times at Orange. Cheng Zi was stunned after seeing it! Simply put your head down and pick up the leftovers after the meal. Han Xu saw that the little mute had no objection, but he was afraid of irritating him again. After thinking for a long time, he didn't know where to start asking. Although the little mute looked ignorant, he was very alert and seemed to understand what Han Xu was worried about. He pointed at the mobile phone Han Xu put on the table, and then pointed at his eyes. Although Han Xu did not understand sign language, he also knew that the little mute was not using sign language, but the meaning was very clear. Orange asked in confusion, "What does little mute mean?" "He wants to tell us that he has seen the woman in the cell phone photo!" Han Xu tried to express what the little mute wanted to say. As soon as he finished speaking, the little mute nodded heavily on one side. "You are awesome, you can guess this!" Chengzi felt that this exchange had nothing to do with him, it was too mysterious, so he decisively chose to shut up. Seeing that the little mute's mood was quite stable now, Han Xu was relieved and continued to ask, "You met that woman more than half a month ago, right?" Han Xu was afraid that the little mute could not remember the date, so he roughly said a time range, which was also the time period when the second victim Gong Li disappeared after leaving the hotel. The little mute frowned at first, then stretched out his hands, as if counting, and after a while, he nodded twice. The time was right! Chengzi's eyes widened, and he felt that the case was getting more and more clear. Seeing this, Han Xu asked again, "Wei Daguang had a conflict with that woman, right?" After hearing this, the little mute was stunned for a moment, neither nodding nor shaking his head. Han Xu suddenly realized that there was something wrong with his expression. The little mute might not understand what it meant to have a conflict, so he changed his statement, "Wei Daguang and that woman had a fight, right?" The little mute understood this time and nodded twice without hesitation. "That woman was knocked unconscious by Wei Daguang, right?" He nodded again in response. "That woman was locked up in a secret room under the cabin by Wei Daguang, right?" The little mute didn't know how to respond to this question, and didn't make any moves for a long time. Chengzi was getting anxious, and asked in confusion, "There is a secret room under the cabin? This little mute probably doesn't know about it, right?"
Han Xu suddenly realized, and changed his words, "You haven't seen that woman since that day, right?"