Does the so-called air purifier still need to be detonated? Is that *or*? Is there a radiation effect? Is it going to raze the city to the ground? Lin Ke was so surprised that he didn't know how to continue talking to Mr. Yao.

Ming Fei also asked, "Why did you detonate?"

Teacher Yao glanced at her and reproached her with some anger: "Don't you know that the chain reaction of air purification is an explosion?"

"That, that, that......" Ming Fei stammered suddenly, I really don't know. This dream world is so mysterious!

Lin Ke's brain short-circuited for a while, and then his brain finally turned around, "Teacher Yao, you mean that there is * in this school, and then we have to detonate it to save the zombies in this city that haven't 'rotten' yet, right?"

Teacher Yao looked at Lin Ke approvingly: "This classmate's thinking can still keep up with the teacher, not bad." ”

Lin Ke's mind was full of black lines, and he thought to himself, okay, if you just finish talking about it, and then asked, "But Mr. Yao, I don't understand why we want to leave, is it dangerous?"

"Of course it's dangerous, do you still need me to explain the danger of the explosion? Besides, this air purification is similar to nuclear radiation, and it is difficult to infer what will happen if you are radiated, so it is better for you to leave as soon as possible, the teacher is thinking about you. Teacher Yao explained bitterly.

It turns out that this is the case, since this key person, Mr. Yao, has explained it this way, it is better to evacuate, but it is estimated that the air purification devices have appeared, and the crisis of the city can be solved, it is estimated that the core task of this dream has been completed, of course they should be able to leave, they have the plane as a means of transportation, and it is not simple to escape from the city?

Teacher Yao explained that the specific location of Ming Feina* was in the bell tower on the top floor of this teaching, and instructed them to go there immediately and detonate it.

"But what should you do, teacher?" Yan Mingfei was very worried about her.

"Then you can come with us, okay?" Lin Ke also earnestly suggested.

But Teacher Yao didn't listen to Lin Kemingfei's persuasion no matter what, and said that he wouldn't leave the classroom for half a step.

Maybe this is the plot setting of this dream, she doesn't leave her own reason.

Helplessly, the three of them climbed back to the top of the building, as for the bell tower, Ming Fei muttered while climbing the building, "I remember that the school clock is electronically controlled, how can there be any bell tower?" Lin Ke also didn't know, after all, this is not the real world, and anything is likely to happen, isn't it?

Coming to the top floor of the center of the top of a prominent building, like the brain of the entire teaching building, there is a protruding quadrangular on the bell tower, the dial of the bell is facing the playground, it is really spectacular in front of you, the huge metal chassis of the clock, the needle has a four-meter-long is walking clockwise, stable as everything is normal, the back is the main body of the whole clock, the sound of the friction of the gears comes from inside, fortunately there is a large window on the side, there is no problem to enter through the window.

Ming Fei kicked and broke the glass on the window, and was about to get into it alone, Lin Ke was afraid of danger and grabbed Ming Fei, because he was anxious, he first probed to see if there was any danger inside, and when he was about to probe in front of the broken glass window, a piercing whistling sound came from the window, thanks to the body's reaction faster than the brain, Ming Fei made an instinctive reaction, pulled Lin Ke away and kicked on the object strung out at this critical moment, and the smelly blood splashed Lin Ke's body, and then took a closer look, it turned out that Ming Fei kicked down a mutated bat, and now the bat that attacked Lin Ke has been kicked into two halves and fell on the other side of the roof。

Ming Fei ordered Liu Ming to protect Lin Ke, and didn't say anything more about getting into the bell tower, and heard the sound of bats howling miserably from the bell tower, it seems that the bat family lives in this kind of building, Ming Fei, who has mutated the R virus, is so powerful that she is perverted, and she is immune to all pathogens. Ming Fei held a flashlight in one hand and carefully interspersed his body in the narrow aisle of the bell tower to find the detonation switch in Mr. Yao's mouth.

Fortunately, this detonating switch is obvious in the middle of a vacant wall, which blindfolds her when she looks at it from a distance, there are actually three detonating switches, each side by side in a straight line, each as big as an A4 paper, Ming Fei never expected that there were so many switches, so which one should be pressed or both?

When she got closer and looked closely, Ming Fei became happy, there was an element symbol under the three red buttons, and above the three switches was actually a fast blackboard, and there was a question listed on the blackboard with chalk, haha It was the question that Mr. Yao came out of just now, of course, she knew the answer, and did not hesitate to press the button below that was the aluminum element symbol, and when she pressed the button, the clock gear around her was running rapidly, it should be right!

Suddenly, a mechanical female voice sounded: "The air purification system has been activated, please evacuate as soon as possible, the countdown is sixty minutes, and the countdown will start now." It then kept repeating the phrase, please evacuate as soon as possible......

Ming Fei returned the same way and came to Lin Ke Liu Ming, and shouted excitedly: "I have completed the task, there is still an hour, we will go back to pick up Meijiao and them!"

Several people were relieved and excitedly rushed to the helicopter on the other side.

After getting on the plane, Lin Ke Mingfei was so excited that he was going crazy, it was time to go back to find his friends and get out of this city, he had to be fast. Fortunately, the two of them simply said the direction to Liu Ming, and Liu Ming nodded and replied that he knew the direction, and victory was in sight.

All three had long-lost smiles on their faces.