Seeing this extremely terrifying death scene, the female classmates present suddenly screamed.

After the task was completed, the corners of Zhang Yang's mouth couldn't help but raise a smile, and then led them into the classroom again, and it has been two hours since the time of class.

Taking advantage of everyone's excitement, Zhang Yang was about to continue to lecture, but at this time, the principal suddenly called Zhang Yang and told Zhang Yang something very seriously, but before Zhang Yang could react, the principal hung up the phone.

At first, Zhang Yang didn't want to get out of class, but seeing that the principal was so anxious, something major must have happened, so Zhang Yang bowed his head to everyone and apologized: "Ah, the principal just called and said that he wanted me to go to the office, so now after class, you can move freely outside, and the most important thing is that no one can enter the class without my order!" Violators will be deducted 100 credits! ”

Some students began to be impressed by Zhang Yang's first class, they all praised Zhang Yang's course as a god course, at first they didn't want Zhang Yang to leave the class, but seeing his serious look, they didn't say anything, but asked: "Teacher, when will we enter the class?" ”

"I'll let you know when you enter the class." Zhang Yang smiled and left Class 9.

Then Zhang Yang went to the office, and saw the principal sitting in a wheelchair leisurely drinking tea, looking at his extremely unsettling expression, where did he feel that something important had happened?

So Zhang Yang walked towards him, then smiled slightly, and asked slowly: "Headmaster, I don't know what happened when you summoned Zhang Yang?" ”

"Ah, Zhang Yang, can you see what time it is?" The principal didn't answer Zhang Yang's question, but asked slowly.

Zhang Yang looked at his watch and replied, "It's ten o'clock and seven, what's wrong?" ”

"Well, it's three minutes before ten, which means that if you come three minutes late, you'll be dead!" The principal suddenly stood up from his wheelchair, his face suddenly gloomy, and his tone was very cold, and his words made Zhang Yang's heart palpitate.

"What? Headmaster, you said I'd ...... if I came three minutes late."

When Zhang Yang wanted to say more, the principal immediately nodded and said: "The first seventeen teachers have indeed died suddenly after police investigation, and there is no suspicion of homicide. But the police have an extremely important clue! ”

"Oh? What clues? Zhang Yang immediately asked, since the principal deliberately aroused his interest, why didn't Zhang Yang ask.

Seeing that Zhang Yang's face was a little abnormal, the principal smiled faintly and continued: "That is the time when these seventeen teachers died, and they all have a common characteristic. The first teacher died at 0:10 a.m., the second teacher died at 0:13 a.m., and the third teacher died at 15 a.m....... Judging from the law of the death of these 17 teachers, time is in the form of additive, and the death time of each teacher is calculated from the death time of the previous teachers. So if that's right, today at 10:10 is the time of your death! ”

"So, then I have to thank the principal." Then Zhang Yang smiled slightly and smiled at the principal.

To be honest, I was very shocked to hear this news, but in fact this news is contradictory to the development of the situation!

If not man-made, then who constructed these clear calculations of death?

Therefore, Zhang Yang did not agree with the principal's speculation, so he could only smile silently at him and listen to him continue to say his opinion.

"Thank me? You don't have to! Because the police also believe that this speculation is extremely reasonable. In order to deepen Zhang Yang's impression of this logic, the principal said the word police, and then he added, "And according to the fact that the accidental deaths of teachers and students all happened in the classroom, it means that it is very likely that it is safe outside the classroom." ”

Of course, this kind of publicity is more convincing.

So Zhang Yang and the principal looked at the camera control center, and now there are a total of four 360-degree cameras installed in Class 9 to observe the movement of the classroom in all directions.

There is still a minute left before 10:10 a.m., which means that in a minute, there will be a teacher death in Class 9.

Now, Zhang Yang and the principal were watching with bated breath as the next minute of movement.

Although Zhang Yang and the principal didn't know what was going to happen next, they were all full of countless curiosity and longing for what would happen in the next minute! Because this minute can be a matter of life and death for a teacher, or even something that cannot be told in the dark!

It's 10:10 sharp.

And now, Zhang Yang and the principal have fallen into a dead silence.

Because Zhang Yang ordered them not to enter the class before, the front and back doors of the ninth class are now locked.

There was no one in the empty classroom, so now the safety of both Zhang Yang and the safety of the students is guaranteed.

"Zhang Yang, do you see anything?" The principal asked suddenly, which really startled Zhang Yang.

"Oh, Zhang Yang saw that the air in the entire classroom was moving, and the oxygen and carbon dioxide in it could be seen clearly." Zhang Yang replied very honestly.

The principal was speechless for Zhang Yang's answer, but at this time, something unexpected happened!

"Headmaster! Look! There's someone in the classroom! ”

Zhang Yang couldn't help but redden, and saw a long-haired woman dressed in white enter the classroom through the outside wall, and then she slowly sat down in the first row of seats.

Seeing that her face was pale, her whole body was stiff, and her hands were extremely unnaturally vertical when she walked, if there was no mistake, this woman was a female corpse!

"What? Someone? Where is it? Why didn't I see it? The principal looked at it, but didn't see it, then rubbed his eyes and continued to look, but he still didn't see anything, and then he turned his head and asked, "Zhang Yang, are you dumbfounded?" ”

Hearing the principal's answer, Zhang Yang suddenly felt a thrill, and then remembered that his true identity was almost leaked, so he quickly lost a smile and said, "Aha, it's possible, let's keep watching, keep watching." ”

So Zhang Yang and the principal continued to look at the screen in the camera, although the principal couldn't see the dead people, but Zhang Yang could see it.

In order to avoid revealing his identity, Zhang Yang pretended to look at the female corpse with a casual look.

I saw that the female corpse sat on the seat and quickly stood up, and then walked towards the podium, and then she stood on the podium and slowly took off her head, which was incredibly not a trace of blood flowed from the severed head.

However, at this moment, a bloody arm suddenly burst out from the broken neck, as if trying to break free from the body of the female corpse......