The three of us looked at each other and couldn't understand why they were full of fear of this room. Even if someone had died before, there was no need to show such horror.

Walking out of this room that felt something was wrong since I came in, I looked at the two people of almost the same age standing in front of me.

Wen Rong pointed to the person on his left and introduced us, "This is the principal of Anyong Village Primary School, Yang Ziping." After that, Wen Rong pointed to the older person on his right and said, "This is Liang Qingshan. He was a police officer from our county police station a few years ago. After retirement, he returned to Anyong Village. The witnesses and the person who called the police were also Liang Qingshan."

Yang Ziping is almost fifty years old. His hair is gray but he is wearing a Zhongshan suit and shows a spirit that is inconsistent with his age. However, this spirit completely collapses when facing this classroom. He constantly wipes the sweat from his head, trying to calm himself down.

In contrast, I pay more attention to Liang Qingshan.

It seems that Liang Qingshan is older than Yang Ziping. Chi Mu's face is covered with wrinkles and her white hair is messy. The wrinkled face reveals panic, probably because of this classroom like Yang Ziping.

I was more targeted. When they appeared in front of me, they carefully looked at the two of them. I found that Liang Qingshan's legs and feet were a little inconvenient, and his body was slightly tilted to the right when he walked, which should be caused by the uneven right foot.

After briefly introducing it, I pointed to the signs that were displayed on the classroom door and asked in confusion: "I heard from the literary team that no one has been here in this classroom for a long time. What's going on?"

Yang Ziping is the principal of the school and some things are much clearer than the rest.

Yang Ziping held his hands nervously and skillfully took out a gray towel from his pocket to wipe the sweat from his forehead. He said with his eyes dodged: "Oh, our school arrangement is from bottom to top. The students can sit down so the classroom is empty."

His expression was flustered and his eyes were dodging. It was obvious that he was lying.

I nodded thoughtfully without exposing Yang Ziping, but instead turned my eyes to the gas tank in the classroom: "Did this gas tank exist originally? Or was it brought by these four dead people?"

Gas poisoning means that gas is likely to come from this gas tank.

And how can there be gas tanks in ordinary classrooms?

Even if the gas tank is used to keep warm, the weather is summer now. If the gas tank is really used to keep warm, the weather should have been removed long ago.

Yang Ziping frowned and said, "There was nothing in this classroom, and these gas tanks and that desk were put in later."

There was nothing in the classroom.

I frowned and glanced around, then looked at Wen Rong and asked him: "Are the fingerprints extracted from the gas tank and the desks from the four dead?"

Wen Rong told us accurately: "The fingerprints on the desk and the gas tank are very complete, and it can be confirmed that they were from Fang Xingwei and Yuan Shaoan. It should have been moved by two of the four deceased men during their lifetime."

"Do you have surveillance equipment here?" After asking, I regretted it. It is impossible to install surveillance equipment in such a country primary school.

As expected, Yang Ziping shook his head and denied that there was no surveillance equipment.

Without surveillance equipment, this undoubtedly adds greater difficulty to our case solving.

What is now certain is that the four deceased had moved the gas tank into the classroom before their death, which means that they were very likely not expecting to come out before they entered!

But... Zhao Jiyou said that all this was not suicide, but homicide.

Since he killed him, why did the fingerprints of the deceased appear on the desks of the gas tank? Who killed these four deceased?

What is the motive for killing them?

The motive for murder not only depends on the cause of most of the murderers, but also on the deceased. We once again asked Yang Ziping about the information about the four deceased during their lifetime.

When I asked questions, I also found something was wrong. When asked questions, Yang Ziping could answer us calmly without asking about the matter about this classroom. But when we asked about the information related to this classroom, Yang Ziping would become anxious.

This also made me understand that there is something hidden behind this classroom.

The hidden information is definitely very important. Otherwise, it would not have been possible for Yang Ziping to have such a big fluctuation.

From Yang Ziping, we learned that the four deceased were all from Qingquan County. They have been here for more than a year.

The four deceased did not come together when they came. First, two female deceaseds, Cha Xiaoxun and Xu Yingshan, arrived first, and then two male deceaseds, Fang Xingwei and Yuan Shaoan.

According to what Yang Ziping said, the four of them came here to do things and were deeply loved by the rest of the school teachers. They were not as impetuous as young people should be, but were very calm.

He is also extremely kind to students during teaching. Many parents of students have praised Yang Ziping for four teachers more than once.

Because their home is in the county, all the four deceased live in the school. Four teachers who had just graduated from college suddenly came to the school. The principal Yang Ziping was also very happy and arranged a separate residence for them.

On weekdays, except for class, the four deceased rarely go out to socialize with others, and even go out, they buy some necessary daily necessities. They choose to spend the rest of the time in school, and they will only return to the county town during holidays.

Judging from the information Yang Ziping gave us and the information we had in our hands, the four deceased had never offended anyone at all, so they denied the revenge.

The family conditions of the four deceased can only be said to be ordinary but not excellent, and the teacher's professional salary is relatively meager. To put it bluntly, it is not much money, and it is impossible to be killed because of money.

What else is there?

"Have the four deceased experienced love during their lifetime?" Jiang Bing and I thought of each other, and she raised her head and looked at Yang Ziping and asked.

Yang Ziping told us firmly without thinking: "Not at all. When they came, Teacher Cha and Teacher Xu knew each other, and Teacher Fang and Teacher Yuan also met. In the past, the other teachers in the office teased them and asked them if they had a boyfriend or girlfriend. If not, let them try to date. When they finished saying this, they shook their heads and smiled and said that they had no boyfriend or girlfriend, and now they don't want to talk about marriage."

Excluding revenge, money and love killing, what else can make four ordinary teachers encounter such a catastrophe?

Could it be that it was really a mistake to invite Dixian and that something that shouldn't be invited?

If this is the case, maybe everything has a good explanation, but... why did the four dead reappear after two hours of death?

Thinking of this, I couldn't help but look at Liang Qingshan.

"I heard from the Wen team that you encountered four dead people around 1 a.m. on the 21st. I don't know what was going on."

Originally, I thought Liang Qingshan could not speak Mandarin, or was very unstandard in speaking Mandarin. But what I didn’t expect was that his Mandarin spoke was much more standard than that of ordinary people.

His old voice seemed very vigorous and powerful: "I met these four teachers at 1 a.m. at that time. After I retired from the bureau, I got used to going out to patrol at night. So after returning to EYang Village, I kept patrolling the village around 12 a.m.

When I saw these four teachers at around 1 o'clock in the morning, I first trained in the entire village of Anyong Village and then went to the school to take a look.

Our school gate has been a few years and is easy to break, so every time I patrol, I would go to the school to lie down. When I was at the foot of the mountain, I saw four figures walking slowly up the mountain. At the beginning, I didn’t know who these people were, so I followed them silently. When I arrived at the gate of the school on the mountain, I recognized these four people as teachers of our school when the headlights at the school gate.

There weren’t many people who didn’t sleep in the middle of the night? So I felt strange and followed them quietly. But after following them for a while, I couldn’t see any figures. I thought they were going back to sleep, so I went to their dormitory to take a look. I found that the lights were on in their dormitory. I was relieved at that time. When I was walking back, I suddenly heard a sound on the fourth floor of the teaching building. I didn’t dare to hesitate and ran to the fourth floor quickly, but..."

Speaking of this, Liang Qingshan's voice suddenly stopped. He glanced at the classroom behind me in fear and remained silent.

The more he did this, the more I felt strange. What exactly existed in this classroom? Not only did the principal avoid it, but even the upright police officer in front of me was terrified.

"Just what?" Jiang Bing took a deep breath and asked.

Liang Qingshan was a policeman after all. After hesitating for a while, he gritted his teeth with a ugly expression and said, "I just hesitated when I walked into this classroom and I was a little afraid to walk forward. However, when I thought of the sound coming from inside, I gritted my teeth and slowly approached the classroom. At that time, I saw the scene in the classroom.

The four teachers lay on the ground in horror. They covered their mouths and noses, and some even strangled their necks and their eyes widened.

When I saw that scene, I knew something was wrong. When I saw the gas tank in the classroom, I knew clearly that it was very likely that gas poisoning was caused. I didn’t do anything randomly, so I quickly called the police. The team knew about the subsequent things..."

"It was past 1 a.m. when you arrived on the fourth floor, right?" I slowly took a step back and asked in front of the classroom.

Liang Qingshan said with certainty: "That's right, it was around 1 o'clock in the morning. I rushed over when I heard the sound... I didn't expect that the four teachers would die here tragically."

I frowned and pondered what Liang Qingshan said.

The four deceased died at 11 o'clock on the 20th, and when Liang Qingshan heard the sound and rushed over quickly, it was still 1 o'clock on the 21st.

In other words, the sound appeared around 1 o'clock in the morning.

The four dead had already died at 11 o'clock on the 20th, so it was easy to show everything.

Someone came to the classroom after these four dead people died!

That's why it makes a sound.

"Voice... Do you still remember what sound you heard?" Jiang Bing turned around and stood with me, looking in the classroom and asked.

Liang Qingshan replied: "It's... the sound of closing the window!"

"The sound of closing the window?" I subconsciously turned my eyes to the window in front of me.

But the windows are always locked, how could they be closed?

I took a look at the classroom next to me and walked slowly over and opened the window.

Their classroom windows are old-fashioned, the kind that opens inside and out.

I opened the window and closed it suddenly.

The windows closed, making a 'bang' sound, not only that, but also the sound of glass shaking.

Liang Qingshan looked at the window with a change of color and said without thinking: "It's...it's this sound!"

Jiang Bing immediately spoke to Wen Rong and said, "Team Wen, please let someone come and scan all the windows in the classroom on the fourth floor."

Wen Rong nodded calmly and took out the phone and started calling.

I patted the dust on my hands and walked into the death classroom with the sign "Class 61".

The classroom was as thick as before, and the thick dust on the ground was disrupted.

When I walked into the classroom, I clearly realized that Yang Ziping and Liang Qingshan's faces became very ugly.

I ignored these things and walked closer to the classroom and thought quickly while stroking the wall.

What exactly exists in this classroom? Can these people become more terrified?

I soon got the answer.

I stroked the walls of the classroom with my fingers, but found something abrupt on the walls.

I stopped and frowned slightly, and I pressed the wall with my fingernails, but found that the wall was not a white wall painting at all, but a layer of white stickers!

I slowly uncovered the sticker without saying a word.

But before I could fully uncover it, I heard a heart-wrenching cry from Yang Ziping outside the classroom.

"Don't reveal it!"
Chapter completed!