According to the information, the deceased was pregnant at the time of the incident. The deceased left a mobile phone at the scene that was on the air. This proves that the deceased was still on the phone before his death. It's just that the number on the phone is shown as an empty number. According to your earlier assumption, the killer may have approached the deceased while she was on the phone with the other party and pushed her downstairs. and enter a string of fake mobile phone numbers to create a false impression. But at that time, before she died, she called the child's father for help. However, instead of answering her call, the other party forwarded it to voicemail. Aze stood in the deceased's position at the time, explaining the information gathered.

Tan Zhi took his words to heart word for word.

At this moment, he heard Xiaohui in the distance stop.

"Qin Hui, you take a rest first. There is something strange about the location. My camera just caught a black fog-like thing behind you, and the image is very unstable. ”

Xiaohui's words caught Tan Zhi's attention. She opened the soundmetry and positioning instrument she had brought with her. It's a new laptop-like product because it's small and she'll take it with her when she's out to do business. It can use magnetic fields to find sound molecules in space, and reassemble and restore them. In other words, it is possible to use this device to find the sounds that were present here at the time of the incident.

Tan Zhi put on a headset. What I heard was a rattling noise. After a while, the murmur gradually became quieter.

…… Footsteps followed, followed by keystrokes......

It appears that the deceased did make a phone call before his death.

〈Didn't you say you wanted to live together?' Please...... Pick up the phone ......〉

Then there was another clattering sound.

Tan Zhi couldn't understand why the clatter sound appeared here again and again? At first, she thought it was a murmur, but after several appearances, she could be sure that it was not a murmur, but a sound similar to the friction of two objects. So what is it exactly?

Tan Zhi took off the headset and saw a dark shadow behind him. Suddenly turned around and saw Qin Hui standing behind her without knowing when. I always felt that her eyes were a little strange.

"Miss Qin Hui, do you have anything to do with me?"

Qin Hui didn't answer, just pressed towards her step by step......

Tan Zhi looked behind him...... A few more steps and there is no way back. Could it be that Qin Hui regards her as a rival in love?!

"Qin Hui, what are you doing?!" Xiaohui walked over and patted her on the shoulder, but she suddenly fainted. Fortunately, Aze was behind and quickly held her up.

"She must be too tired from work...... Let's take a break. Mr. Dai rushed to calm the panic in everyone's hearts when he heard the news. After all, this is known as the fiercest place in the city, not to mention that Halloween is approaching. Although everyone is an adult, there is still some belief in the existence of those things in the world. Even Aze was surprised that Qin Hui fainted. Her physique has always been good, and she is a well-known Iron Lady in the group, how could she faint all of a sudden? I can't figure out why she stood behind Tan Zhi like a puppet before. If Xiaohui hadn't spoken out to stop her, what would she have done next?

Aze looked at Tan Zhi, who was busy testing not far away. If you were an ordinary woman, you would have been scared to the point where your legs were weak. After all, if you take a few steps back, you will fall downstairs.

"Are you alright?"

"Hmm."

Tan Zhi recalled the expression on her face when Qin Hui looked at her, and there were still palpitations in her heart. She felt something behind her just now, so she turned back...... I didn't see Qin Hui. She looked like she was in the middle of evil.

Tan Zhi didn't think about it anymore and put on the headset again.

〈嚓...... Cha...... Cha...... Didn't you say you wanted to live together? Please...... Answer the phone! …… Cha...... Click...... Click...... Yes! 〉

Tan Zhi always felt that there was something wrong with this voice. So I replayed it several more times. What exactly is that clacing sound?

"Miss Tan Zhi, it's time to eat! Let's get it after eating. ”

Aze walked towards her with a snack of food.

"Don't move!"

"What's wrong?" Aze didn't understand what the hell this woman was going to do? He was kind enough to send food, so he didn't need to treat him like this, right? Anyway, the two of them are also partners.

"Please walk this way from where you just stood a little longer."

Although Aze didn't understand what she was doing, he still cooperated and walked away.

Tan Zhi saw the resentment in his heart, and said with a smile: "Please trouble you to go again." Slow down your steps...... Lighter. Yes, that's it! I finally understood what those clattering sounds were!! ”

Aze was even more puzzled. She shouldn't have been scared out of trouble by Qin Hui, right?

"Come here, you'll understand after listening to this sound." Tan Zhi said as he handed him the headset.

〈嚓...... Cha...... Cha...... Didn't you say you wanted to live together? Please...... Answer the phone! …… Cha...... Click...... Click...... Yes! 〉

After listening to this, Aze's eyes were full of puzzlement.

"The deceased did not commit suicide."

"This is pure speculation, and it is impossible to determine the cause of death based on sound alone."

When Tan Zhi and Aze were in a stalemate, I heard Mr. Dai say: "Miss Tan Zhi is also justified in saying this. I don't think anyone other than the suspect, Jiang Yuanmei, would do anything to kill a student. Why don't you call this episode 'Murderer in a Teacher's Mask', what do you think? ”

"Mr. Dai!" Tan Zhi couldn't help but interrupt Mr. Dai's words.

The man with the surname Dai is the director of the show. I've long heard that people who do TV shows only care about ratings. Because the ratings are directly proportional to the advertising agency, as long as the ratings are high, there will be a lot of money coming in. In these days, even a fool will not be reluctant to pay for it!

Regarding Tan Zhi's attitude, Mr. Dai didn't express any dissatisfaction, turned to Aze and asked, "All the voice files have been handed over to Miss Tan Zhi, right?" He kept a smile on his face as he spoke.

Tan Zhi felt that this smile was like his mask. Everyone has a mask, and behind the mask there are many secrets that no one knows......

Aze has long known that Tan Zhi is a straightforward woman, and she never seems to hide that she hates Mr. Dai.

"Yes, including the outflow part and the part we found later, all of them were handed over to Miss Tan Zhi."

"Okay, then you two get busy first. Let me know if there is anything new. Before leaving, Mr. Dai did not forget to look back and smile at her.

Tan Zhi always felt that Mr. Dai was a little weird. Standing beside him made her uncomfortable. Besides, is it necessary for a program director to know so much? Only the offender cares about the dynamics of the case.

"He was originally from the Ministry of Information, and he was in charge of the news of the fifth middle school murder case that year. So Mr. Dai is very interested in this investigation, so don't worry about it. Maybe he'll help us in a pinch. ”

Aze's explanation made Tan Zhi want to laugh. I really didn't expect that Aze, a man who looked like a stone, was quite careful.

Tan Zhi came to the second place of the crime----------- the girls' bathroom.

According to the analysis of the sound data provided by Aze. There was a case of a student missing in the women's toilet after the deceased jumped off the building. The school did not seem to know about it, and only reported the case to the police because the parents of the student did not see their child home at the end of the month.

I really didn't expect that disappearance to happen in the toilet.

Tan Zhi pushed open the outer door of the bathroom. A foul smell made her cover her nose. Looking around, I couldn't see anything suspicious. If the murderer was still alive, the scene would have been cleared five years ago. Even if something really misses, five years is enough time for the murderer to clean up the purple place. Although she thinks so, she still insists that she will definitely find new clues this time.

As Tan Zhi approached the toilet, suddenly the dusty faucet rattled. She turned around and saw blood coming out of the faucet.

Blood? How can there be blood in the pipes?!

Tan Zhi walked to the sink and found that the faucet was electronically inductive. It's no wonder it flows out of the water. What came out of this faucet was not blood at all, but rust. She looked up at herself in her glasses and couldn't help but widen her eyes.

If memory serves, the door to the toilet cubicle was closed when she entered. Now there's one that's open!

Could it be ......

Tan Zhi kept herself calm. Perhaps the door was ajar and he didn't notice it when he came in. Or maybe the six was blown away by the wind......

There seemed to be a force pulling her towards the open cubicle.

Behind the toilet, Tan Zhi found a photo. The photo shows a sixteen or seventeen-year-old girl with short ear-length hair and big eyes. Looking at her uniform, you can tell that she is a student of No. 5 Middle School. Why are there photos of female students left here?

"On the third day of the suicide of the female student by jumping off the building, her friend Han Qing, who joined the choir with her, also disappeared mysteriously......" Qin Hui was explaining, and suddenly saw Tan Zhi and Aze talking not far away, Tan Zhi seemed to hand a photo to Aze, and her beautiful face still had an intoxicating smile. Qin Hui's heart was like a stone pressed fast, heavy.

"Qin Hui, look at the camera." Photographer Xiaohui spoke out to draw Qin Hui's attention.

When Tan Zhi saw Qin Hui and Xiaohui, the smile on his face deepened. As a woman, of course she knew why Qin Hui was distracted.

"Hey! I think she has a lot of feelings for you. ”

Aze began to wonder why Tan Zhi suddenly came up with this sentence. Following her gaze, she saw Qin Hui, who was a little flustered and didn't turn her head, and her heart was clear. He wasn't going to say anything about it, especially about the woman. So he changed the topic in an indifferent tone: "Miss Tan Zhi, didn't you go to the second scene today?" Why did you come here so quickly, is there a new discovery? ”

Tan Zhi still had a charming smile on her face, handing over a photo of her hatred in the toilet.

"This photo ......"

"I just found it in the bathroom. Do you know this person in the photo? ”

"She is the missing Han Qing!"

"Looks like I've really found a clue. You say that Han Qing is missing, but there has been no news of her in the past five years. I saw interviews recorded by students in the past that Han Qing was hanged with a hose in the bathroom, and this rumor is said to have come from Qin Qin's mouth. The missing student hanged himself in the toilet, and the only person who can confirm this rumor is the survivor Qin Qin, right? ”

"Yes. It's just that Qin Qin has been suspected of mental illness and sleepwalking since before. Therefore, the police did not accept her testimony. Therefore, the missing Han Qing closed the case as running away from home. Although Qin Qin saved her life, I don't know if it was because of too much stimulation, her intelligence degenerated to the equivalent of a 5-year-old child. ”

"Oh~~ It's really miserable." Tan Zhi felt that there were some things that he hadn't figured out yet. For example, all the members of the choir were killed except for Qin Qin. If the murderer was Jiang Yuanmei, why didn't she kill all the members, leaving Qin Qin alone? Even if she made a mistake at that time and didn't succeed in killing Qin Qin, it would take five years to kill a Qin Qin who had degraded to the age of 5 and had no power to fight back. But why didn't Jiang Yuanmei do this? Is it because of the discovery of conscience? How can the demon who killed eleven students in one go know 'conscience'. Another possibility is ...... Jiang Yuanmei is dead!

If it weren't for the eye-catching words 'Kangning Mental Hospital' hanging at the entrance of the building, Tan Zhi would have thought that he had arrived at the orphanage. Pure white buildings, pure white walls. Through the fence of the fence, you can see mentally ill people dressed in blue and white striped suits. Some sat under the tree in a daze, some tilted their heads and desperately opened their mouths to try to bite off their noses, and some danced and sang out of tune as if they had taken stimulants. There were several women in nurses' uniforms standing around. These women are far from the legendary angels in white, and it can be guessed from their blank expressions that they have long been numb to these abnormal people in front of them.

Tan Zhi and Aze stood among these people and felt particularly awkward. It's like two Martians came to Earth.

Tan Zhi felt that they should have many untold stories. Of course, the purpose of her visit was not to learn about their past. She only wants to see one person now.

Not long after, a middle-aged man in a white robe led the two of them into a room. After taking out the documents and registering them, follow him in the other direction of the gate.

After a long corridor, a small building appeared in front of me. The small building is surrounded by locust trees, which bloom in clusters of small flowers. It didn't look like a dormitory for the sick at all, but like a villa for the rich.

Tan Zhi couldn't tell where the excitement and excitement in her heart came from at the moment. Maybe it's because she is about to see Qin Qin, and you can find the key to solve the mystery in her. She glanced at Aze beside her, and there was no expression on his face at all, just silently following the middle-aged doctor.

This room is nice and tidy. There was a white-skinned woman sitting by the window. She didn't move like a wax figure, staring at the window.

The white-robed male doctor walked over and gently patted her on the shoulder. He had been coughing like a cold before that.

Qin Qin turned around with a childlike innocent smile on his face: "Uncle...... Are you here to pick up Qin Qin and go home? Did you buy me a lollipop? ”

Obviously an adult in his twenties, he behaves like a child. This made Tan Zhi feel uncomfortable. I don't know if I should feel sympathy for her, or if I should be glad that she was able to forget those painful memories.

Qin Qin saw a man and a woman standing at the door, and quickly shrank behind the white-robed male doctor, and called out in a trembling voice: "Uncle~~~ They are bad people, bad people have come to arrest Qin Qin......"

"Qin Qin is good, they are kind-hearted people who tell Qin Qin's story, don't be afraid." The white-robed male doctor kindly reassured.

"Bad guys! They're bad guys!! I'm afraid! Uncle, let them go...... They will kill Qin Qin! Qin Qin looked very excited, and her hand grabbed the white-robed male doctor tightly.

Tan Zhi and Aze looked at each other. Approached Qin Qin with a pre-prepared Mao shrug doll. "Qin Qin is the most well-behaved, you see, my sister helped you bring you something fun~~"

Qin Qin, who was originally excited, was a lot quieter and looked at the doll in Tan Zhi's hand. It's like a child who wants to ask for something but is embarrassed.

Tan Zhi took the opportunity to approach her and took her hand and put it in the palm of her hand. "Qin Qin, my sister likes Qin Qin very much and wants to be friends with Qin Qin...... May I? ”

"Well, is my sister a good person?" Qin Qin raised a pair of big eyes as clear as a child and looked at Tan Zhi.

"Yes, my sister came to see Qin Qin and cares about Qin Qin, so don't be afraid."

"Sister is so nice."

Tan Zhi laughed, and then said: "Qin Qin, my sister hasn't heard anyone sing for a long time, can you sing to my sister?" ”

"I don't like you! Go away!! Qin Qin suddenly became very excited, threw the Mao Tuo doll on the ground, and pushed Tan Zhi away like crazy and ran out of the room.

"There have been police officers who have come to Qin Qin to investigate some things before, and finally gave up. I've taken over the care of her since she was released from the hospital. For 5 years, she rarely talked to people, and most of the time she stared at the window in a daze. Alas...... She's pathetic enough, those incidents were closed by the police five years ago, and I don't think you can ask for any new clues now. I think you'd better go back. ”

The white-robed male doctor left the room after speaking. Leave a coughing sound

"Miss Tan Zhi, are you okay?" Aze didn't expect Qin Qin to suddenly make such a move. She just looked like she was fine.

"It's fine." Tan Zhi got up from the ground. recalled Qin Qin's previous aggressive actions. Qin Qin seems to be very afraid of seeing strangers, and she doesn't like toys.

Even if she didn't like the two strangers, she could have asked the white-robed male doctor to drive them away. But why did she run away? Is it a coincidence? Or is there another purpose. What are they missing?

"Miss Tan Zhi, let's go back."

"Okay."

"Do you want to take this doll with you too?" Aze didn't understand why Tan Zhi would bring a doll to Qin Qin all the way. There were many things this woman did that he couldn't understand. Just like when she picked up Han Qing's photo that day, she insisted that he bring it here to find Qin Qin.

Tan Zhi glanced at the Mao shrug doll and said with a smile: "Forget it, this is the meeting gift I carefully prepared for Qin Qin!" ”

Looking at a man and a woman who went straight out of the mental hospital. Qin Qin sighed and sat on the bed. There was a mess in my head. See the hairy doll on the ground. Get up and walk over and kick it a few times, then lie back on the bed.

The coughing outside was getting farther and farther away. Qin Qin got up from the bed, hugged the doll tightly in her arms, and secretly shed tears.

"Aze, can the electronic monitoring system of the women's fifth middle school still work?"

"Of course. Although it has been abandoned for 5 years, the electronic systems are all well preserved. Aze didn't understand what this woman wanted to do.

"So can you pull up the video from five years ago?"

"You're trying to find clues from the pictures of the past, but there are only shadows, no sounds."

Tan Zhi knew what he meant. As a transliterator, sound analysis is her specialty. But her identity is more than just a translator. The reason why she participated in this show this time was because of the tragedy of the fifth middle school in the women's school, so she was willing to agree to Mr. Dai's request.

"Monitors like that have small microphones in them. I think I'll be able to find some clues. ”

When Aze first took over this show, he transferred the relevant information and photos to their group for later search. The dusty videotapes in the data room seem to have come in handy this time.

A girl in a school uniform appears in the photo. Ear-length short hair, big eyes. Tan Zhi recognized her at a glance as the girl in the toilet photo.

"Han Qing!" Aze also recognized her as the girl in the photo. I just don't understand why I'm still in the hallway of the classroom so late.

The picture is a bit of a snowflake mess, and it looks extremely unstable. Aze adjusted the instrument, but there was still no sign of clearing. I only heard Tan Zhi laughing next to him.

"Can't you see that this is a mess of snowflakes left by the interference of the monitor during the recording, and it has nothing to do with the player."

When Aze heard this, he felt a little embarrassed. I really didn't expect that Tan Zhi, a woman, could tell at a glance, is she really just a sound analyst?

Aze was pondering when he heard Tan Zhi sigh.

"Isn't this person Qin Qin?"

！！！

Tan Zhi just couldn't understand why Qin Qin also appeared in the corridor of the teaching building at this time. Could it really be a coincidence? Judging from the look on her face, it didn't look like she was looking for someone, but like she was following.

"Han Qing has disappeared since this night?"

The police have also confirmed that this is indeed Han Qing's last photo record in the women's fifth middle school. I've seen the footage too, but I didn't find anything suspicious. I also called up the relevant information of Han Qing to have all the photographic records in the school. It's just that the students who provided a confession at that time said that on the night of Han Qing's disappearance, Jiang Yuanmei found Qin Qin who had fainted in the toilet. Qin Qin's first reaction when he woke up was to scream uncontrollably, saying that Han Qing was dead. also shouted that he wanted to take his classmates to the scene of the crime. At that time, Jiang Yuanmei asked the doctor to inject her with a tranquilizer, and insisted that everything she saw was an illusion. An hour later, everyone followed Qin Qin to the women's toilet in the teaching building, but they didn't see Han Qing's body; Not even a trace of blood. ”

Tan Zhi rubbed his sour eyes and spoke: "It is true that there is no other image of Qin Qin and Han Qing together at the same time. However, the microphone recorded faint sounds that were inaudible to the ear-like ear. Since the police will judge that Han Qing's disappearance has nothing to do with the Fifth Middle School, it is not clear that they have overlooked any details. ”