"After taking the 4 keys from the woman, he put them in his left pocket," Jiang Cheng said calmly, "Then his left hand stayed in his pocket, and I don't know what he was doing. At the same time, he kept talking to try to distract us."

The fatty felt his brain wasn't working well enough again, and he said warily, "Did he do something to the keys?"

"It's not clear yet," Jiang Cheng replied. "I checked the keys just now and didn't find anything strange."

The fatty nodded while explaining to himself, "So you had the pajama girl and the others go over there to interrupt his little tricks?"

The fatty gritted his teeth and said indignantly, "Doctor, this suit man looks okay, but I didn't expect him to be so bad behind his back. He's even retaliating by assigning us to room 404."

"I'm going to take a nap," Jiang Cheng ignored him, turned over, and said, "Remember to wake me up in an hour."

"Okay," the fatty took the watch Jiang Cheng threw over.

The strap wasn't long enough, so he couldn't wear it, so he had to hold it in his hand.

Although he wasn't very sleepy, he sat up and wrapped the quilt around himself to prevent himself from falling asleep inadvertently.

The night was very quiet, and the whole campus seemed dead.

The fatty thought that there were probably no students living nearby, otherwise it wouldn't be so quiet.

An hour passed, the fatty got out of bed and shook Jiang Cheng awake.

Jiang Cheng was a light sleeper, and he had already woken up when the fatty got out of bed, but he still waited for the fatty to push him a few times before opening his eyes dazedly.

After sitting up, he moved his neck and shoulders. The pillow here wasn't very comfortable. He was used to the buckwheat pillow at home and wasn't used to the soft cotton.

"Has anything strange happened during this time?"

"No," the fatty said, "Doctor, don't worry, I'll wake you up even if I find a cockroach. You should know that I'm very vigilant."

Jiang Cheng stood up and first went to the door. He didn't get too close, just listened to the movement in the corridor through the door.

After a while, he returned to his bed, lay on it, and listened to the movement next door for a while.

"Doctor," the fatty said, "they should all be asleep. It's very quiet around here."

Jiang Cheng glanced at him, didn't speak, took the watch from the fatty's hand, and put it on his wrist.

Although the fatty wasn't hungry after eating the chocolate, he felt very thirsty.

Another half an hour passed like this. Jiang Cheng estimated in his heart that it should be about time, and prepared to take action. He first warned the fatty that no matter what happened later, he had to pretend to be ignorant.

The fatty was full of question marks, but out of trust in Jiang Cheng, he readily agreed.

He saw Jiang Cheng pull out an old one-jiao coin from the corner of the ground, then picked up the coin and returned to the wall next to his bed, gently scraping the wall with the edge of the coin.

"Scrape, scrape, scrape..."

Again and again.

The strength was just right, the sound wasn't loud, but it was very clear in the silent night.

"What are you doing?" The slight scraping sound made the fatty's hair stand on end. Many people have a physiological aversion to such friction sounds.

Jiang Cheng didn't answer, and continued to repeat the scraping action.

Gradually, there was sound coming from next door. Although it wasn't loud, the chaotic sound could tell the panic of the person next door.

Next door was room 405.

The room of the suit man and the baseball cap.

After a while, the sound of the door being pushed open came from the corridor, followed by hurried and disorganized footsteps.

Hearing the footsteps, Jiang Cheng immediately stopped scraping the wall with the coin, carefully wiped the remaining wall debris off the coin, and then threw it in an inconspicuous corner on the ground.

But the footsteps were in the opposite direction of Jiang Cheng's room 404, and then stopped, and there was messy knocking on the door and the voices of the suit man and the baseball cap.

Before long, the corridor became lively again.

Jiang Cheng pretended to have just woken up and slowly pushed open his door. He seemed not to expect everyone to be outside, and his expression instantly became fearful. "What's wrong? What happened?"

Seeing Jiang Cheng come out, the suit man at the head seemed stunned for a moment, and after a while, he asked in a strange tone, "Did you hear a strange sound?"

"A strange sound?" Jiang Cheng scratched his head. "No, I just fell asleep. It's very quiet around here."

"No?" The suit man's face became ugly. He seemed to suddenly remember something, and hurriedly said, "Where's the fatty in your room?"

"I'm here," the fatty came out when he heard the words, poking his big head out of the room, his hair messy, as if he had just woken up. "Guardian, what do you want me for?"

The matter happened suddenly, and the suit man was too lazy to care about the issue of address, and said directly: "Did you hear a very strange sound?"

He paused and described, "Like the scraping sound of a spoon or something?"

The fatty widened his egg-like eyes and said suspiciously, "No, I haven't been asleep all the time, and I didn't hear anything."

Hearing Jiang Cheng and the fatty's answers, the people in the other two rooms, except for the suit man and the baseball cap, all showed a relieved expression on their faces.

At the same time, their faces were full of intriguing expressions when they looked at the suit man.

Only the people in room 405 heard the strange sound, so does it mean... they will encounter those things first.

In other words, they will die first.

"We're going back," the qipao woman said first.

Then she walked straight back to her room, followed by the dinosaur pajama girl, like a little tail, for fear of being abandoned.

Seeing that the people from 407 were so decisive, the three people from 406 didn't stay any longer. After saying a few polite words, they also ran back to their rooms in a puff of smoke.

The door was slammed shut with a "boom", as if afraid of something following in.

Now only the suit man and the baseball cap were left with gloomy faces.

Jiang Cheng leaned against the door with a puzzled expression, and then as if he suddenly realized something, he blurted out, "Could it be that hearing strange friction sounds is the condition to trigger the evil spirit to kill people? My God, that's terrible!"

"Fatty," Jiang Cheng turned his head and said in a panic, "Didn't you really hear it?"

The fatty replied very cooperatively, "Good brother, I really didn't. What about you?"

"I'm the same as everyone else, I fell asleep and didn't hear anything," Jiang Cheng spread his hands, putting on an innocent and pitiful expression.

"That's great," the fatty said, "then we don't have to die."

After saying that, the two closed the door, leaving the suit man and the baseball cap standing alone in the corridor under the dim light.