"Damn it, that's really insidious." Huai Yi also understood this point and cursed in a low voice, "The check-in book is placed opposite the head. If you want to sign in, you have to go over there and turn your back to the head. Who can stand that?"

Wen Liangshan licked his lips and said, "Don't be so sure, Brother Huai. My Brother Jiang can do it. If Brother Jiang hadn't been careless at the beginning, this little trick wouldn't have been able to deceive my Brother Jiang's eyes?"

Fatty: "Wen Liangshan, I remember you weren't like this yesterday."

Jiang Cheng ignored him, glanced at the time on his phone, and frowned slightly. It was 12:19, "Hurry up, we don't have much time left."

This mission not only required them to survive from the first floor to the fifth floor, but there was also a time limit. If they couldn't leave through the main entrance before 12:44, the mission would be considered a failure.

They would be trapped here forever, just like the missing Xiao Ting.

Returning to the previous stairs, they quickly went upstairs, but as soon as they reached halfway, Wen Liangshan made an "Um?" sound.

Because it was extremely quiet all around, this sound seemed particularly abrupt.

"What are you yelling about?" Huai Yi asked.

Wen Liangshan seemed to be attracted by something. He reached out and touched the stair railing. After a while, his breathing became rapid. "Brother Jiang, come and take a look..."

Before he could finish speaking, Jiang Cheng walked over. He didn't turn on the flashlight on his phone in the corridor, but only used the faint light from the screen to illuminate.

There were obvious water stains on the stair railing. Getting closer, he could smell a pungent odor, the formalin used to soak corpses.

Even more terrifying, there were scratches on the railing, which looked like they were left by sharp fingernails.

But... Jiang Cheng scratched it a few times with his fingernails and found that although the railing was old, the wood used was quite solid, making it difficult to leave scratches on it.

Jiang Cheng could even imagine that the fingernails of the hand that left the scratches must be very sharp, like knives.

The higher they went, the more nail scratches there were, densely packed, which looked particularly creepy.

"Doctor." Fatty, who was walking on the other side, suddenly spoke, "You... you come and see here?"

Following the direction Fatty was pointing, it was the side close to the wall. The white paint on the wall was peeling off badly, and it was covered with various scratches.

Just like the ones on the wooden railing, they were all left by fingernails.

There were also a few lines of crooked words mixed in.

"Why come here?"

"Why don't you listen to me?"

"Don't go up anymore, this is not a place for the living."

"I've already warned you."

"Do you want to see me die so much?"

"Then so be it."

"Hehe, actually, the moment you saw these words, you were already dead."

"Stay here..."

"Forever... forever with me."

These words were also carved bit by bit with fingernails, crooked and twisted like a group of reptiles. Looking at them for a long time, his head ached like needles.

The threat and strangeness contained in them were beyond words.

Another thing that attracted Jiang Cheng's attention was the position of these words. Some were actually more than 2 meters above the ground.

So, the question is.

How did the person, or thing, that wrote these words do it?

Can it fly?

Or... can it crawl on vertical walls like a spider.

Because he knew that one of Fatty's talents was to overthink, Jiang Cheng didn't say this guess, for fear of scaring him.

He just reminded everyone to be vigilant.

The layout of the fourth floor was different from the other floors. It was unclear whether it was due to the building's design or something else, but everyone felt that the ceiling on this floor was significantly higher than the previous floors.

Looking up, it was pitch black, as if it could lead to another world.

Moreover, the temperature was lower than the previous floors.

If they had felt cold before, the temperature here had already started to make them shiver.

Even Jiang Cheng, who wasn't very afraid of the cold, subconsciously wrapped his clothes tightly.

"It's so cold." Wen Liangshan kept squeezing into the middle of the team. Finally, he was glared at by Huai Yi before he calmed down. The lower half of his face was completely shrunk into his clothes, and the voice he made was very muffled, "I said, where have we come to? Is this the gate of hell?"

"If you can talk, say more. If you can't, shut up!"

Walking slowly along the corridor, the corridor was so deep that it seemed to have no end. The front and back were dark, and the sound of footsteps echoed here, giving everyone a sense of desolation of being forgotten by the world.

The rooms on both sides didn't look like ordinary classrooms or offices.

First of all, the doors were different. They were very heavy iron doors, with old-fashioned padlocks on them. Some doors were painted dark green, and some were painted blue.

The doors were also wider than ordinary doors. Jiang Cheng stopped in front of an iron door. There were no signs or instructions on these doors. The only way to identify them was by a few labeled numbers.

On this door, slightly to the right, the number 9 was painted in bright red paint.

"Room 9." Fatty looked at the bright red number and suddenly had a bad feeling.

"Brother Jiang." Huai Yi looked at Jiang Cheng and asked in a low voice, "Is there something wrong with this room?"

Along the way, there were many similar rooms around. No signs, no instructions, no markers.

Except for a heavy iron door that couldn't be opened and a few numbers, there was nothing.

They didn't even know what was done inside.

Jiang Cheng ignored him, but directly raised Huai Yi's hand and placed it on the door. The next second, Huai Yi's face suddenly changed.

Cold.

No, no, not cold, but... chill.

That kind of bone-chilling chill!

Before meeting Jiang Cheng, Huai Yi had experienced some supernatural events, and this chill was from those things.

Before Huai Yi could speak, Jiang Cheng said, "This should be the morgue of the entire medical school."

"This entire floor?"

Huai Yi was shocked. This was just a medical school, not a professional hospital or funeral home morgue. Where did so many corpses come from?

"Of course not, only this room is. The others... are fake." After Jiang Cheng finished speaking, he pointed to the bottom of the door, "We've walked past so many rooms, only this room doesn't have a threshold."

"Because transporting corpses requires professional carts, and having a threshold would make it very inconvenient for the carts to enter and exit." Jiang Cheng pushed the door with the bone-chilling chill with his hand and found that the door was locked, with a very old chain lock that gleamed with the cold luster of metal.

"Help me keep watch." Jiang Cheng took out a black hairpin from his pocket, then bent the wire inside. The hairpin was taken from Yuan Xiaoyi's head. At that time, he said he would keep it as a souvenir.