"Hey, teacher, it's me, I'm Li'er's mother" Jialiwen said with a worried look on her face: "That's it the last time we talked, you told me that there was a child in the class Just like Li'er, he said that he has a friend that others can't see. Is there such a thing? " "Yes, that's what the child said, but he is a good child. What's the problem?" "No, I am. I want to ask if the child has contact information. " "I have his parents' contact information." "Okay, just a moment, Carrie. Wen got the contact information, and after hanging up the teacher's phone, Jia Liwen dialed the phone number of the child's parents. "Hello, are you Xiaobin's mother?" "Yes, are you?" "I am the mother of Xiaobin's classmate Li'er." "Hello, what can I do for you?" "Xiao Bin Is Bin there? I want to ask Xiaobin about something. "Xiaobin is in the hospital now?" good. "Just yesterday, Xiaobin didn't know what happened. He lay motionless on the bed, with his eyes open like that" Xiaobin's mother's voice on the phone was full of exhaustion and worry, just like Kelly Wen. . With the seal of Xiaobin’s mother, Jia Liwen’s mood became heavier. After a few words of comfort, Jia Liwen hung up the phone. "How is it?" "Li'er's classmate Xiaobin also had an accident, and his symptoms were exactly the same as Li'er, and he had the accident one day earlier than Li'er." Jiali Wen became more and more anxious as she spoke, almost crying: "Bai Chen, what should we do? You must have a solution, right?" Bai Chen's face was solemn: "Don't worry, let's analyze it and see if we can find any useful clues." "Are there any clues?" Jia Li Wen was almost desperate. To her, Li'er was everything, but now Li'er had become like that, and as a mother, she was helpless. Jia Liwen buried her face in her hands and cried silently. She had already thought about the worst case scenario. "Listen to me! If you still want to save your daughter!" Bai Chen shouted. Jia Liwen raised her head and looked at Bai Chen: "Is is there still hope?" "I don't know, but we have to work hard, even if there is only a glimmer of hope, are you willing to give up like this? Let Li'er be like a living dead , lying in the hospital? " "Yes there is still hope, I will not give up, I will not give up!" Jiali Wen seemed to be encouraging herself. Bai Chen looked at Jia Liwen and analyzed: "Generally speaking, the eyes of people who can see things like souls are called yin and yang eyes." "What are yin and yang eyes?" "The explanation is not clear. There is no time to explain, just listen to me continue." Bai Chen paused and continued: "The probability of yin and yang eyes is very small, just like rare blood types, there may be only one yin and yang eyes in a million people. How many people are there in your class?" "Thirty people," Jia Liwen replied. "Thirty people, two one-in-a-million yin and yang eyes appeared. How small is the probability? How coincidental? So I think it's not that Li'er and her classmate Xiaobin have yin and yang eyes, it's the ghost who chose them. , so that they can see their existence. " "Then what?" Jia Liwen held her breath and looked at Bai Chen with trembling eyes, waiting for Bai Chen's continued analysis. "What do Xiaobin and Li'er have in common?" "Do they have anything in common?" "For example, identity is something they have in common." Bai Chen thought for a while and then said: "The people they come into contact with on daily basis will also have something in common. Common points, such as classmates and teachers. " "And their classmates are basically the same age, so they can be ruled out, so the next step is the teacher, so the teacher is most likely to be her responsible teacher. ? That's the one I just called" Jia Liwen started to worry again. If it was the one who just called, then the other party might be suspicious. What if the other party destroys the evidence because of this? What if the other party hurts Li Er because of this? "Who is that teacher?" "Her name is Susan" "Susan?" Bai Chen raised an eyebrow: "Show me her phone number." "Is it her?"Wen couldn't help being surprised when he saw Bai Chen's expression. "She is my neighbor. I have been in contact with her and have been to her home, so she should not be the mastermind behind the scenes." "Isn't it her? What should I do? Is it another teacher?" "Since I can be sure that she is not the one behind the scenes. The mastermind, then look for her, maybe she can provide us with more clues. " "Yes, she spends more time with Li'er in school than me, so she must be able to provide clues." After hearing Bai Chen's words, hope immediately rose again. Jialiwen is like a drowning person, grabbing every hope she thinks is possible. "Teacher Susan, it's me, Li'er's mother, I'm sorry to disturb you, do you have time? I need to talk to you in person, now, yes, now things are urgent, okay, in Xin'an Xin'an Beverage Shop on No. 2 Street, okay." Jia Liwen looked at Bai Chen and said, "We've made an appointment." "We'll go there now." Originally, Bai Chen didn't want to show up, but at this time. Jia Liwen has long been helpless. I am afraid that she alone cannot ask anything, and there are some questions that Bai Chen also needs to ask in person. The two drove to the agreed upon location, and half an hour later, Susan also arrived. But when Susan entered the store, she found Jia Liwen and Bai Chen sitting together, and couldn't help but walked forward curiously. "Xiao Bai, why are you here? Do you know Ms. Jia Liwen?" Jia Liwen stood up with a haggard face: "Hello, Teacher Susan." "Sit down." Bai Chen nodded. , did not answer Susan’s previous question. Susan found that Bai Chen rarely joked with her, and Susan's expression looked particularly haggard and solemn. "Ms. Jialiwen, are you feeling unwell?" "Sister Susan, I have a few questions to ask you." Susan looked at Bai Chen, then looked at Jialiwen with questioning eyes. Wen nodded: "It's Bai Chen who wants to ask you a question." "Teacher Susan, what do you teach?" "Math, Xiaobai, are you planning to go to school?" Bai Chen smiled lightly and shook his head. : "Li'er, you know." "Yes, my student." "Can you tell me about Li'er in school?" "Xiaobai, do you know Li'er?" "I know her." " Li'er is a very well-behaved girl" Susan's answer was a standard answer for teachers, especially when facing parents. No teacher would tell parents that your child is a bad boy. It can be seen from Susan's answer that Susan is quite responsible. Jia Liwen on the side nodded repeatedly after hearing this, as if she had forgotten about Li'er and was immersed in it and couldn't extricate herself. However, Bai Chen still interrupted Susan: "Sister Susan, that's not what I want to hear. Who is Li'er closer to in the class? Which teacher does he have more contact with?" "Li'er is in the class. I have a lot of friends, and I basically maintain a good relationship with every classmate. I don’t know if I have the best fun, but recently Li’er and Xiaobin have become very close. Xiaobai, why are you asking? "Is there anything unusual about them?" Susan was already suspicious when she heard Bai Chen's question, because Bai Chen's question was like a police interrogation. "Xiaobai, tell me honestly, has something happened to Li'er?" "She is in the hospital now." "What? What's going on?" Susan stood up suddenly. "Sit down." "What's going on?" "Li'er is poisoned." Bai Chen replied casually making up an excuse. "Who did it?" "It's still under investigation. We just want to ask and see if we can get some useful clues from you." "Do you suspect that the person who poisoned is a student in the school? Or Teacher?" "There is suspicion in this regard." "So have you found the suspect?" "No, the police have no clues, so we need to find clues from you, the responsible teacher." Susan looked at Bai with a bitter smile. Chen and Jia Liwen: "Am I also the object of your suspicion?" "If you were the object of our suspicion, we wouldn't come here to talk to you." Susan suddenly remembered the previous phone call from Jia Liwen: "Yes "Is Xiaobin also poisoned?" "Yes." Bai Chen replied. "Who is so crazy?" "Sister Susan, have you seen this pattern?" Bai Chen took out the photo he had taken at Jia Liwen's house and handed it to Susan. "I seem to have seen this pattern before!" Susan said with a frown, as if she was recalling it. After thinking for a long time, Susan's eyes lit up: "By the way, I remember it." "Where have you seen it?" Jialiwen was excited. asked. "On the school's playground, but this happened last month. I remember it was a boy who, I don't know what he used, graffitied this pattern on the school's playground." "Where is that boy?" " "He's not from my class, I don't know." "Well, what's wrong?" Bai Chen's face became more solemn: "Sister Susan, can you find the school student's file?" "What do you want this for?" "Don't ask, it's very important anyway." "I know a colleague from the archives office. I can ask him for it. It's not a confidential document anyway." "Can I do it now?" "Is it so urgent? It's already late" "It's very urgent. I can't wait until tomorrow." Susan looked at Jia Liwen in confusion, and Jia Liwen nodded repeatedly. Human life is at stake, not to mention her own. Daughter, there is no time to delay until tomorrow.