Just as Liu Xian'er looked up at the classroom on the fourth floor of the main building, she unexpectedly found that the room that was originally lit suddenly became dim through the window.

"Are they going to sleep?" Liu Xian'er's pace slowed down, if the few students in the classroom planned to sleep, Liu Xian'er shouldn't disturb others.

But Liu Xian'er, who stopped for a moment, noticed that the surrounding scenery looked slightly bleak, the cement pavement under her feet, the dull street lamps standing in front of the road, and even the trees beside her were a little darker than before. Due to the darkness, these close-up scenes could not be detected at any abnormality when observed, but when Liu Xian'er looked at the distant scenes, she found that the distant scenes seemed to be covered with a thin layer of black mist.

Liu Xian'er, who noticed something unusual, didn't dare to stay in place, and when she looked at the main teaching building again, Liu Xian'er even felt that even the outside of the main teaching building was covered with black fog.

"I have to bring those students out of the main teaching building first, and then go to Su Xiaoya and them to find out." Liu Xian'er quickened his pace and ran towards the main teaching building, and as he ran, the black mist spread at a speed visible to the naked eye.

The plastic track on the playground and the audience platform were completely swallowed up by the black fog, and the lawn in front of the canteen had disappeared for the most part. Although he didn't know what this black fog was, Liu Xian'er had a lot of fear of this black fog in his heart, and he didn't even dare to touch these black fogs.

After Liu Xian'er entered the main teaching building, he ran to the stairs without looking back, not noticing the new situation outside the teaching building.

There was still a classroom lit up in the corridor on the fourth floor of the main teaching building, and Liu Xian'er went up to the fourth floor and walked directly to the lit classroom.

"Crunch!" When Liu Xian'er walked to an ordinary classroom next to the silent classroom, there was a sudden noise in this ordinary classroom. Liu Xian'er, who heard the noise, immediately wanted to push the door to check the situation, but he found that he couldn't open this ordinary classroom door.

Liu Xian'er was surprised that there was a door that he couldn't open, he was a ghost now, it stands to reason that this situation should not occur, unless there are people in the door, Liu Xian'er must be approved by the people in the classroom to open the door, is it possible that those few people who study in the silent classroom can't learn to sleep in the classroom next door?

"Knock knock!" Liu Xian'er tried to knock on the door three times, but no one responded to him, Liu Xian'er tried to pass through the glass window on the door again, but this was still a failure, no matter how hard Liu Xian'er hit the glass window, the glass window was not broken, and there was not even a trace of damage.

", why is this glass so hard, why is this door so strong!" Liu Xian'er rubbed her head and kept complaining in her heart. If there is no pain, the stubborn Liu Xian'er really wants to continue to bang until the door is broken, to see how strong this thing is. But Liu Xian'er is not a masochist, although he is a ghost, he still has a sense of pain, and seeing that hitting the door has no effect, Liu Xian'er gave up this method. Liu Xian'er could only lean her face against the glass window and look into the classroom to see if she could see the people in the classroom.

Through the glass window, Liu Xian'er saw that the originally neat tables and chairs in the classroom had become messy, especially the few tables and chairs near the door, the table tops were dumped in the direction of the door, and there were a few chairs on the ground against the bottom of the door, which may be the reason why Liu Xian'er couldn't open the door.

The neat board book can be vaguely seen on the blackboard, and it can be vaguely seen from the characters that this is the solution step of a certain math problem. Other than that, there doesn't seem to be anything strange about this classroom.

But on the wall close to the blind corner, Liu Xian'er noticed that there were many overturned tables and chairs surrounding it. Liu Xian'er leaned hard against the window trying to see what was going on inside, and at this moment, someone behind her suddenly patted Liu Xian'er on the shoulder.

"Ahh Liu Xian'er was taken aback, he turned around and saw a girl with a ponytail standing behind him shivering, apparently frightened by the voice Liu Xian'er had just made.

Liu Xian'er hurriedly took out a pen and paper, and with the light of the silent classroom next door, Liu Xian'er wrote what she wanted to say on a note and handed it to the ponytail girl.

"Call everyone out of your classroom, we need to get out of here."

"Leave? Why do you want to leave and go back to the dormitory? The pony-tailed girl was a little puzzled when she saw the words on the note, she seemed to know nothing about the situation outside.

Liu Xian'er was a little anxious, he wanted to snatch back the paper he had just written, but as soon as he stretched out his hand, he was dodged by the ponytail girl.

"You...... You...... Don't touch me! The ponytail girl covered her chest and took a few steps back, she had been very wary of Liu Xian'er before, and she was even more nervous when she saw Liu Xian'er's movements as if she was going to hurt her.

In the process of retreating, the ponytail girl touched the doorknob of the silent classroom, which made the girl's eyes light up, she originally came out to find Song Xinying, who hadn't gone back for a long time, but Song Xinying didn't find it but met Liu Xian'er. Now in this situation, she can't care about looking for Song Xinying, after all, her own safety is the most important thing. She hurriedly typed the code on the button on the doorknob to hide in the most secure classroom on campus.

Liu Xian'er wanted to explain, but he couldn't speak yet, so she had to tear off another piece of paper from the notebook she was carrying. At this time, the pony-tailed girl had already dodged into the classroom, and locked the door from the inside.

"Whew...... It's safe now. Just as the pony-tailed girl leaned against the door with her chest and sighed, several students in the room who had been packing up their things and preparing to go to bed cast puzzled glances at her.

"Li Meitong, why do you look like you want to be relieved at the door? Didn't you go and find someone, Qiang Tao and the ugly chick? A boy in the room asked puzzled, he didn't know what Li Meitong encountered, in the eyes of several people in the classroom, Li Meitong just went out and turned around after a while, and Li Meitong, who didn't even find the figure, was just wasting time.

Hearing this, Li Meitong was so frightened that she hurriedly put up a silent gesture. "Shh......h You didn't even notice it in the classroom, there was a terrifying guy outside, who wanted to attack me while I was not concentrating, but I found out, otherwise I wouldn't have been able to come back. ”

"You don't think you're afraid of hallucinating at night, are you? It's so late, and those people are sleeping in the dormitory building, right? ”

"No way, I'm not afraid of the dark, I really met a strange person, he can't speak and wails, like ...... It's like a wild ghost! Li Meitong couldn't think of a better adjective to describe what she saw Liu Xian'er, but Liu Xian'er's first impression on her was like that.

"That wild ghost you talked about...... Is it the one behind the window? A girl next to her covered her mouth and snickered and pointed to the window behind Li Meitong, behind which she was clearly a normal living person.

Li Meitong was proud of her successful escape, but the girl's words made her body stiffen, and she slowly turned her head to find Liu Xian'er staring at her intently against the window.

"Ahhhh Li Meitong was frightened and squatted on the ground, so that Liu Xian'er behind the window could not see her completely. But she didn't dare to look back at Liu Xian'er, as if as long as she turned around, Liu Xian'er would eat her alive.

"As for it...... He seems to be one of the people who talked to Weems, and he seems to have spoken to Song Xinying. ”

"But he didn't say a word just now, and I really heard his wail!"

"Oh...... I forgot to mention that he seemed to be a deaf and mute person, and at that time, it was seen that the communication process between him and Song Xinying was completed on paper. ”

Hearing what her classmates said, Li Meitong had some impressions, she seemed to have been in contact with that boy at that time, and when she looked at Liu Xian'er outside the window again, Li Meitong also felt a lot more familiar.

"Could it be...... Did I really remember wrong? ”

Liu Xian'er outside the window could only see the mouths of the people in the room open and close, but she couldn't hear what they said, this silent classroom is indeed worthy of its name. But suddenly, Liu Xian'er found that a black fog gradually appeared near the window in the house, and the thick black fog was about to contact the students in the room.

"Run!" Liu Xian'er felt anxious for these students in her heart, but this seemed a little inexplicable to several students. "Maybe there's something wrong with this guy, maybe it's a psychopath!"

"Wait a minute, look what this is!" A young girl felt a chill in her back, and when she turned around, she realized that the black mist was already approaching her back.

"Huh? What is it? The others also looked behind them, and they all noticed this strange black fog. Could this be the smog of hell? ”

"Ahhh The moment the girl who first discovered the black fog in the classroom came into contact with the black fog, her body was gradually corroded at a speed visible to the naked eye. From skin to flesh, from flesh to bones, there was nothing left in the place that was corroded by the black mist.

"Help me...... Help me! The girl reached out to her classmates for help, but no one dared to approach, and they just stared at her disappearing body in panic.

Seeing that these classmates, who usually get along well, were watching coldly at this time, the girl was even more scared. She tried to break free from the black mist, but the moment her body came into contact with the black mist, her body seemed to be filled with lead and could not move at all. The girl fell to the ground all of a sudden, and the pain of her body gradually corroding made her want to faint, and the girl kept hitting her head on the ground, trying to faint herself.

But at this time, the girl is very spiritual, and her senses are also so sharp for the first time, and she can clearly feel where her body disappears a little bit. At this time, her waist body had completely disappeared, the girl had given up struggling, and vaguely she seemed to see Song Xinying.

The girl looked at Song Xinying in surprise, she didn't know when Song Xinying came in, this was by no means an illusion when she was dying, she could clearly see Song Xinying, Song Xinying stood beside Li Meitong and looked at the girl who was corrupted by the black fog with a smile!

"Ugly chick, save me!" The girl's cry for help startled Li Meitong, Song Xinying was not in the house, she followed the direction that the girl was looking at, if Song Xinying was really there, she should be ...... Just stand by your side!

The others didn't care about seeing how the girl struggled at this time, they wanted to open the classroom door, but found that the door was locked and another layer of password was set, which should have been set when Li Meitong just came in.

"Li Meitong, hurry up and open the door!"

Li Meitong dared to move at this time, just now she suddenly felt a cold hand on her shoulder, but she couldn't see anything.

In the eyes of the girl who was about to disappear on the ground, Song Xinying was half-leaning on Li Meitong's side and staring at her mockingly.

"Ah...... No, no, no, I said the wrong thing, Song Xinying, Sister Xinying, save me! cough cough cough cough ......" After the girl who asked for help said this, a trace of black blood appeared at the corner of her mouth.

"It's over......" The girl stopped asking for help, her consciousness finally became blurred, and at the last moment of her life, the girl regretted going to hell a little.