The echo of the knock on the door echoed back and forth several times, and gradually disappeared into the darkness.

Everything was quiet, but it was terrifyingly quiet, except for the rapid breathing of Xia Yun and Wang Xiaomeng, there seemed to be no other sound in this world.

"Xia Yun, I'm so scared, think of a way to get out." Wang Xiaomeng said behind Xia Yun.

Xia Yun was still standing in front of the door at a loss, she knew in her heart that it was impossible for anyone to answer or open the door for them, but after waiting for ten minutes with extremely slim hope, the result still made her very disappointed. There was no third person here except the two of them.

There is one thing she hasn't figured out yet, and she has been entangled in her heart for a long time, and if she figured it out, she might be able to find a way out.

If the "person" living in this dormitory can hear the knock on the door, and under normal circumstances, even if the door is not opened, they will ask who it is, but in the end no one answers, it means that the situation is abnormal, and everything that is unreasonable is possible even if it happens.

Xia Yun thought to himself that it was exactly the same as he guessed, the place where he was currently located was not the 4th female dormitory at all. Or rather, they are still in that building, but it is not the student dormitory where they lived, and this is probably the other side of this building.

She explained her thoughts to Wang Xiaomeng, and Wang Xiaomeng looked at her with a confused expression.

"There's another side to the building? You're not in the right mind, are you? ”

"If I had a problem with my head, I wouldn't have thought of it. Seriously, there's a good chance we'll never find our way back now..."

"Huh?! What the hell is this, I don't want to die here. Wang Xiaomeng said while crying.

Xia Yun was very scared in his heart, why didn't the kitten appear?

She picked up Wang Xiaomeng, who was sitting on the ground, and walked forward step by step, the wind was very strong in the dark corridor, Xia Yun was very strange, where did these winds blow from?

At the other end is the toilet, there is no wind coming in at all, so there is only one possibility, the window in the direction of the 404 bedroom is not closed. If you can find the wind source, then it will be very close to the dormitory.

Xia Yun stopped the excitement in his heart, this is a good method, if it really works, then he can go back.

"Xiaomeng, I've thought of a way to get out, can you still walk on your legs?"

Wang Xiaomeng gritted his teeth and said, "If you can't go, you have to go, I don't want to stay here for a second longer." ”

"Well, you have to follow me, and then you have to confirm my thoughts, and if I think wrong, then we're afraid... You'll never get out. Xia Yun said.

Liangyi slowly moved forward, the footsteps were very small, but they were infinitely amplified in this corridor, and there was even an echo. Xia Yun suddenly thought of a question that had been ignored before!

The echo of footsteps can be heard in the hallway, and the shortest distance to produce an echo is 17 meters!

In other words, you must be at least 17 meters away from the obstacle to hear the echo, but the corridor you see so far, the two sides are only two meters apart, and it does not constitute the conditions for the echo to be generated.

Unless, there is a wall at the end of the staircase, so that the above conditions are met.

But if the end is a wall, where does this gust of wind come from?

"Wait, can't go any further, I made a fatal mistake!" Xia Yun said in horror.

"What?!" Wang Xiaomeng's newly ignited hope was shattered in an instant, his voice was hoarse, and he couldn't cry if he wanted to.

Xia Yun calmed her breath, she didn't know how to explain to Wang Xiaomeng, it was she who proposed to move forward just now, and now it was she who stopped, the more she explained, the more troublesome it became, Wang Xiaomeng might be angry with her because of this, Xia Yun's heart was very conflicted.

Xia Yun said: "I thought about it again just now, and I felt that there were some problems with my previous thoughts, but it is absolutely right for us to move forward, that is... I don't know if I can reach the end of the corridor, and I don't know if the kitten who rescued me before will come to save us again, so let's pray together. ”

"My feet and neck are all swollen, it hurts!" Wang Xiaomeng said in a hoarse voice, his throat was so dry that he couldn't make a sound.

Xia Yun said: "I'll help you rub it, you bear with it-"

"Click-" There was a crisp sound of bones, followed by Wang Xiaomeng's scream like killing a pig.

"Ahh

"Okay, I touched your bare feet just now, the reason for the swelling is that the bone is dislocated, help you connect it, can you see if it's better?" Xia Yun wiped the sweat from his forehead and said.

She felt like she had been walking in this corridor for hours, not drinking a drop of water, her throat was burning and aching, but fortunately she didn't cry, and the water would definitely be more uncomfortable if she lost water too quickly.

"Huh? It doesn't hurt much now, Xia Yun, how did you do it? That's amazing! ”

"Your voice is like this, just talk less, save a little energy, now we are trapped here and don't know when we will be able to get out..."

As soon as the words fell, a voice made Xia Yun ecstatic in the distance.

"Meow-meow-meow-"

"I'm here!"

Xia Yun shouted loudly, finally breathing a sigh of relief in his heart.

Although this is a straight corridor with no other forks, she still feels that this is a large space, and if it is a straight route, she can find the end by touching the wall and walking along it, and there will be no strange situation of an endless loop.

Xia Yun judged from the physical exertion that they had been trapped here for at least three hours, and they could walk several kilometers at a normal speed, and it was impossible to walk for so long in a corridor of less than a hundred meters.

This matter was so weird that there was no time to think too much about it, Xia Yun couldn't wait to go back to the bed in the bedroom and end this terrible nightmare.

Seeing from a distance the two green balls in front of him bouncing towards this place, Xia Yun was so excited that tears were about to come out.

"Meow—"

The cat stopped there and didn't move, barking and barking, not daring to go any closer, as if there was something in the place where Xia Yun was afraid of it.

Xia Yun picked up Wang Xiaomeng and walked forward following the cat's cry, the cat turned back from time to time and pointed out the direction for Xia Yun with its green eyes, keeping a distance from one after the other.

"Why didn't you arrive after walking for so long?" Wang Xiaomeng complained.

"Don't worry, we'll be able to go back with it, it took me back to the dormitory the last time, trust me!"

Wang Xiaomeng looked at Xia Yun's confident expression, and her nervous mood calmed down a little, it turned out that the cat she said appeared in her mouth, it seems that Xia Yun did not lie to herself. So how do you explain this?

All this experience cannot be explained by common sense at all.

The green eyes in front of him stopped there and didn't move, and called out twice, Xia Yun knew that it should be there.

She reached to the left, and sure enough, she could feel the doorknob, and with a hard turn, she saw a ray of light peeking through the crack in the door.

Huh-Xia Yun and Wang Xiaomeng breathed a sigh of relief at the same time, their nervous emotions suddenly turned into tiredness, and their minds were blurry and they just wanted to go to bed.

Xia Yun turned his head and said to the back: "Thank you-"

"Meow—"