Before the leather shoes could get closer, they suddenly turned around and left the classroom.

Zuo Si breathed a sigh of relief and was about to get out from under his desk.

But at this moment, I saw two boys squatting opposite each other, staring straight at him.

They were dressed in tattered school uniforms, their eyes were dull, and a gray-black mist swirled around them.

It's clearly a ghost!

Before Zuo Si could act, the two boys suddenly landed on all fours, crawling towards him like lizards.

Zuo Si clenched the scalpel in his hand, seeing that the two boys were getting closer and closer to him, but he didn't dare to act rashly, after all, there were two on the other side!

The four eyes were facing each other, and there was no movement.

After looking at each other for a moment, the two boys suddenly shrank under the same table as him.

It's cold and cold around.

Although blocking the way, the two boys did not hurt Zuo Si, but squatted on the ground, turned their heads, and turned their backs to him.

Zuo Si was wondering why they did this, when the sound of leather shoes suddenly sounded again.

Smack...... Smack......

It's fast.

The Night's Watch has turned back!

He walked around the classroom, and even bent down to look under the desk where Zuo Si was hiding......

But the view was blocked by the two boys.

Then, as if he didn't see the two boys, he left directly.

After a few breaths, the two boys' figures slowly faded and disappeared without a trace.

"What do these two boys mean? Is it to protect me? Still don't want me to leave? ”

Zuo Si was a little puzzled.

Was the actions of the two boys benevolent or malicious?

"I can't manage so much, it's important to do the task first."

Leaving the classroom lightly, he climbed to the third floor again, and returned to the confinement room.

As soon as he closed the door, he heard a knock on it.

Dangdangdang.

Dangdangdang.

The sound was not loud, as if it was a gentle knock, and the wooden door trembled slightly with the frequency of the pull.

"Who?"

Zuo Si immediately opened the door, but the dark corridor was empty.

"You're right outside the door, aren't you?" Zuo Si asked, "Answer me, if you keep being invisible, where can I find your location?" ”

There was no response, it was like talking to the air.

Zuo Si closed the door again, wanting to try it, if anyone would knock this time.

Dangdangdang.

Dangdangdang.

As soon as the door closed, there was another knock, and he opened it again with a quick eye.

Directly pulled out the scalpel and stabbed it out of the door, stabbing more than a dozen times in a row in all directions.

But nothing happened.

"Blame ......"

The door was closed again, and there was a knock.

Dangdangdang.

Dangdangdang.

The knocker did not shy away from it at all, as if he was mocking Zuo Si for not finding him.

The glass next to the door was shattered, and Zuo Si poked his head out to see what was going on outside the door.

There was nothing at the door, but the knocking did not stop, and the dilapidated wooden door trembled, which was a really strange scene.

The camera on Zuo Si's chest captured everything.

Such a scene also scared the water friends in the live broadcast room.

"There's no real ghost in the slot, right? Why are you so evil? ”

"I feel safe under the covers."

"Do you think the person who knocked on the door was hiding on the door?"

……

The barrage of sailors is not useless, and the last barrage suddenly reminded Zuo Si that the only place that he hasn't seen now is the door......

He held a flashlight and slowly moved his gaze upward.

There was nothing special about the gray-black door frame, and there was not a single ghost on the mottled wall.

Zuo Si couldn't help but think big, if this ghost is invisible, where to find it......

Isn't that embarrassing?

Unrelentingly, he poked his head out and looked farther away.

Suddenly, I saw a vague figure in the darkness at the entrance of the corridor to the west, and my body was trembling.

"Is he the one who knocks?"

Zuo Si turned off the flashlight and walked out of the confinement room.

Quietly approaching the direction of the figure.

The figure didn't seem to notice Zuo Si, and was still trembling.

The distance is getting closer and closer, Zuo Si's pupils shrank, isn't this the woman in gray.

Didn't she run out of the school building, why did she run in again?

"Son, son's mother is here......"

The woman in gray was crying, and the reason why she kept shaking was because of crying.

Zuo Si hesitated for a moment and said, "Are you the one who knocks on the door?" I found you! ”

His voice fell.

The woman in gray turned her head suddenly, her eyes widened, her scalded and deformed face was terrifying, pitted, but extremely pale.

"Son, son's mother is here......"

She called out to her son as she approached Zuosi.

"You're talking to me?"

Zuo Si slowly retreated, not understanding what this crazy woman was going to do.

"Son, mom is wrong, mom won't beat you anymore, don't scold you anymore, okay to go home with mom?"

"I'm not your son, you've mistaken someone! You're welcome if you come any closer! ”

Zuo Si's words didn't have any effect, and the mad woman kept approaching.

Zuo Si slowly put his hand into his pocket, ready to take out the scalpel and give the crazy woman a knife.

Suddenly!

The mad woman rushed over as if she had taken the wrong medicine.

Zuo Si picked up the scalpel and stabbed her.

But before he touched this crazy woman, he felt that his body instantly lost his center of gravity and fell the wall.

Bang! Zuo Si was so stumped by this blow that he didn't even know how to fall.

Although his whole body was sore, he still resisted it and immediately stood up and looked around.

In just a moment, the mad woman was gone

But at this moment, the crying sound came to my ears again.

"She hasn't left here yet."

Zuo Si listened carefully, and the sound actually came from the confinement room.

Through the window, he saw the madwoman lying on her desk crying.

"It seems that the student who is often locked up should be her son?!"

Zuo Si made such a judgment in an instant.

"Could it be her son who knocks on the door?" Zuo Si thought to himself: "This is very likely! Ghosts have a sense of territory, and there is only one ghost in it, and this woman happened to find this and kept calling her son......"

"Why does a student who is often locked up knock on the door of the confinement room? Does he like to come here? ”

Zuo Si shook his head.

"Absolutely not, if he liked to stay in the confinement cell, he wouldn't hate the teacher so much, let alone depict those patterns."

"Since you don't want to go into the confinement room...... That's ......"

Zuo Si's eyes widened suddenly.

"That's what he wants to get out!!"

Suddenly there was a creepy feeling, thinking carefully about the knock on the door just now, it was indeed like a knock inside the door......

"Who says knocking on the door has to be outside!?"

"That thing has always been by my side......"