System [I am in a horror dungeon]

Chu Lingxian compared the handwriting and said, "It's not their handwriting. It was written by someone else."

"Who could have written it that would have been left on their desk for such a long time? It must be someone they know very well." Li Yu'an expressed his guess.

Lu Nanyin and Chu Lingxian looked at each other, thought of someone, and planned to go to the psychological counseling room later.

The three of them continued to search the clinic. In a place where they couldn't see, someone was staring at the surveillance video in front of them, watching them busying around.

Chu Lingxian accidentally looked out the window and found that it was foggy outside. The hospital gate was no longer visible and the sky was darker than before.

"Look out the window!"

They both looked out of the window and saw a dim fog spreading towards the building they were in. A strange sound was coming from the fog. It sounded like the footsteps of many people, accompanied by angry roars, which made people feel uneasy.

"What's going on? We didn't do anything, did we? How could this happen..." Li Yu'an looked at the scene outside in confusion.

Lu Nanyin tugged at Chu Lingxian's sleeve and asked quietly, "Does this have anything to do with what happened to us yesterday?"

Chu Lingxian shook his head: "I don't know either, but the hospital is indeed very different today."

Today, the three of them didn't meet any doctors or nurses, patients or their families. The walls were old and except for the room they were staying in, all the other rooms were messy and covered with a thick layer of dust.

"Our mission is to get out of here, what should we do now?"

Li Yuan looked at the two of them and said, "Since this hospital is involved in the black industry, there must be a secret passage. Transactions are carried out in the dark. It is impossible that there is only one way out."

"That makes sense. If it's a secret passage, should we go to the first floor to look for it?" Lu Nanyin looked at Chu Lingxian and asked.

Chu Lingxian looked at the fog getting closer and closer outside and shook his head. "It's too dangerous to go now. At this rate, we will be swallowed by the fog before we find the secret passage."

Lu Nanyin thought of the road they had not reached the end of before, and looked at the fog that had spread to the entrance of the building. "Lin Yuan, do you remember the secret passage we found? The one on the fourth floor."

Chu Lingxian nodded, "Remember."

"I just don't know if this is the way out. We walked for a long time that day but didn't reach the end."

Li Yu'an watched the two people talking to each other and guessed that they had found a secret passage, but he didn't know if it was the exit.

"Let's go take a look at the place you mentioned first. The fog is starting to spread upwards and I don't have much time left." Li Yu'an urged.

The three of them took some things that might be useful and went to the stairwell.

They went up one floor to the third floor, and then up another floor, which was still the third floor. When they looked up, they didn't know how many floors the building had, and they couldn't see the end at a glance, but the outer body of the building only had four floors.

"What should we do? The fog seems to be spreading faster. We have to move faster."

Chu Lingxian walked into Ward 303. The scene here was completely different from the outside. Outside the window, the sun was shining brightly, with birds singing and flowers blooming. The sunlight shone through the window onto the ground. The green plants by the window were full of vitality. The bloodstains in the bathroom had disappeared. The whole room was incompatible with the outside world.

Li Yu'an stood at the door and looked outside. The sky was covered with dark clouds and yellow sand. The dim mist was mixed with a hint of blood red. The wind was howling as if it would break the window at any moment; while the room was full of vitality, forming an independent little world.

"What's going on in this room? Am I dreaming?" Li Yu'an stood there for a long time, looking at everything in the room, unable to believe his eyes.

When Lu Nanyin saw cracks on the window in the corridor, she pulled Li Yu'an in, closed the door, and locked it in one go.

The howling of the wind, the strange footsteps, and the monster-like roar were all blocked out by the door.

The three of them rested for a while and searched the house, but found nothing.

"Why is this room different from the surrounding ones?" Li Yu'an walked around in circles in the room, talking to himself.

Lu Nanyin put all the letters on the bed and sorted them out one by one. She found a clue related to this room in one of the letters.

"Lin Yuan, look at this." Lu Nanyin handed the letter to Chu Lingxian.

The letter read: Xiaoying, today is the 303rd day since you left. I will never forget this number. March 303rd is your birthday. Room of the hospital was the ward where you stayed after the accident. You stayed in the hospital for days and then you left.

After reading the letter, Chu Lingxian nodded in understanding.

"So that's how it is. This room belongs to her daughter, and it's the room you lived in before." Li Yu'an had just finished speaking when there was a sudden knock on the door.

"Xiaoying, open the door. I'm Anyu, your mother. Open the door quickly." Lu Nanyin hid behind Chu Lingxian and grabbed her arm.

The knocks on the door were getting louder and louder. "Xiaoying, be obedient and open the door quickly. Mom and Dad are taking you out to play. Our family is going to celebrate your birthday."

The three of them looked at each other and the door, but no one moved.

The knocking sound suddenly stopped. The three of them stared at the door in surprise. The scene outside the window began to change. Dark clouds gradually covered the sun, and the wind became stronger and stronger, making a whistling sound.

"It seems that this room is not safe either." Chu Lingxian looked solemn as he thought about countermeasures.

Li Yuan took out a prop from his system space and gave it to the two of them. "Because of you, I got a ride. This is the prop I got before. It can hide your figure and breath for half an hour. Now we can go to the room you mentioned."

Chu Lingxian looked at the palm-sized glass ball in his hand, observed it carefully, said nothing, and went to the door.

"Are you ready?" Chu Lingxian held the door handle with one hand and held Lu Nanyin's hand with the other. Li Yu'an could only pull Lu Nanyin's sleeve with two fingers.

Chu Lingxian took a deep breath, opened the door, looked at the thick fog outside the door, held Lu Nanyin's hand tightly and walked in.

"Lu Ying, Li Yu'an, the fog is too heavy. We may get lost here. Please remember, don't trust anyone except yourself."

"You can't do it either?" Lu Nanyin asked her.

"Yes, you can't believe me until you are sure that I am someone you are familiar with."

Li Yu'an felt something was strange after hearing this, but he couldn't tell what was strange.

He shook his head, getting rid of the strange thoughts in his head, and followed the two people upstairs.

"By the way, is the stairwell back to normal now?" Li Yu'an asked the two people in front of him, but got no answer.

Li Yu'an was shocked, oh no!