As if to confirm my suspicion, the percussion suddenly became rhythmic, and when I listened closely, it turned out to be the first wave I knew best.

It's an old song, and it's not a very popular song right now. However, this song is the most played song in the factory where I work, and it is played on a loop countless times a day.

So, as soon as I heard this tune, I immediately guessed who the person behind the knock was, and this must be the Taiyi boss who is most familiar with our factory song.

Guessing this person, I immediately became excited, hurriedly took out the dagger, and knocked it with the handle. I stopped as soon as I knocked on the other side, and after a while it made a louder bang.

It's in a hurry.,It seems that something has happened.。 I was even more anxious, and I knocked a few times, and then I raised my throat and shouted.

"Boss Taiyi, hey! Can you hear me? How are you? How did you get through? What's wrong? ”

I shouted so hard that my throat hurt a little. However, there is no sound response from the other side, only tapping. Can't you hear it? I'm more anxious, what do I need to do?

And at this moment, there was another knocking sound behind me, and I was stunned and hurriedly ran over. The sound was a bit small, and I don't know if it was because the wall was too thick or because the people who were tapping it were small. I put my ears to the wall so I could hear clearly.

There is no pattern in this percussion, it seems to be anxiously knocking, this is the second person! I didn't guess who this person was, but in order to let her know that there was someone over here, I quickly knocked it too.

Sure enough, as soon as I knocked on the opposite side, it quieted down, and then, just like Boss Taiyi, I immediately began to knock violently again.

I knew I couldn't hear what I was shouting, so I didn't waste that effort, and I gave up after two more knocks. If the person on the other side understood, he would have stayed there and not wandered around.

Now there are two people, and there is still one missing. I didn't know where to look, so I took a dagger and knocked on the other two walls.

But this time I didn't get any other response, but the boss and the other person, probably hearing the sound, provoked them to respond to me with a deadly tap.

After about ten minutes, while I was still thinking about what to do, there was a sudden sound of footsteps in the tomb. I was stunned, so I hurriedly took a flashlight and shone it over.

But the chamber was still empty, and there was no one but me.

"Who? Who's going there? I was so frightened that I couldn't help but shout.

Maybe the walking one heard my voice, and it suddenly stopped. Feeling strange, I raised my flashlight and leaned in the direction of the footsteps.

"Chen Fei? Isn't it you? ”

Suddenly, a voice shouted from the other side of the wall. The sudden sound in the silence scared me so much that I stumbled and fell directly to the ground.

"Who? Who are you? "I don't know whose voice it is, it's not like a man, it's not like a woman, it's creepy to listen to. When I asked, I was afraid to ask.

The sound paused, then footsteps again, and then there was a heavy knock on one of the walls I had patted earlier.

"You're not Chen Fei, who are you? What did you do to Chen Fei? The voice suddenly became very anxious and excited, and even the sound of the knocking was very loud, very scary, as if it was going to break the wall.

However, his excited attitude reminded me of someone, and when I thought of this person, my timid heart calmed down. I am so excited about me, and I have such a lot of strength in my hands, there is only one, and that is Yu Qian, but I don't know that she didn't hear my voice so much.

After thinking about it for a while, I immediately found the reason, maybe it was the same as the voice she came from, it had deteriorated, and what I heard was not the original voice.

So I hurriedly shouted at the wall: "It's me, I'm Chen Fei!" Are you Yu Qian? Our voices changed through the walls, and we didn't hear the original sounds. ”

"That's too much of a difference, isn't it? Is there a voice changer on this wall? Yu Qian on the other side was surprised, and then patted the wall and said.

"I don't know about this, how did you get to the wall?" I asked curiously.

"What did I run over there? I should ask this, no matter how you ignore me, I'll be gone? Yu Qian was quite angry and slammed the wall to express her anger.

And I wondered, how does this feel like we've abandoned her? That's not right, I'm in the same place, and the thief holes dug by Boss Taiyi are still there.

So I shouted again: "I'm still in the original tomb, the holes dug by Boss Taiyi are still here, and you have disappeared!" ”

"How is that possible? This hole is clearly mine! I've been deciphering the frescoes, and when I turn around, you don't see anyone. I thought you were out, so I went out to look for it, and if it weren't for the knocking, I would have almost gone. Yu Qian's complaining tone did not decrease, but I always felt very uncomfortable with this kind of voice.

But the amount of information she revealed was huge, I was asleep, and I really didn't know what was going on. If Yu Qian really has been studying the murals, then it is indeed us who have disappeared.

"Wait, I'll climb up and see! I have a hole in this too, and I feel like things are a little unusual. I thought about it, looked at the cave, and shouted at the wall.

"Good! Anyway, don't go far, come back soon! Yu Qian didn't hesitate, just instructed me twice. It can be seen that she is a little timid alone.

I answered, and began to throw ropes. Boss Taiyi's hole digging is quite perfect, as long as you throw it casually, no matter what, it can basically be hanged.

I climbed up the rope, just like when I came down, at an angle of 45 degrees, and through the rock layer was the gravel layer, and there was no difference.

I managed to climb out without any problems, and it was dawn outside, probably around noon, and I probably slept too long. At a glance, isn't this the same open space before? It's really the most primitive place, what the hell is going on?

Returning to the tomb again, I patted Yu Qian's wall and asked, "Yu Qian, are you still there?" Are you in the open space when you climb out? Same scene as before we came down? ”

"That's right! I'm where I am, aren't you where you were anymore? Yu Qian asked strangely.

"I'm still in the same place, or that clearing, or the two ......mountains," I said with some bitterness, because I didn't understand what was going on.

Yu Qian obviously didn't believe it, she exclaimed in surprise: "How is this possible? Is it possible that the environment can still be replicated? ”

"Copy?" This word made me stunned for a moment, and then I quickly put down my backpack and opened the yin and yang diagram. The eighth-symmetrical pattern shown in the picture does look like a copy, but it might be more appropriate to describe it in another word, which is mirror image.

I hurriedly knocked on the wall and asked, "Yu Qian, which wall are you talking to me now?" ”

"Which side? The cave is facing this wall diagonally to the left, and I don't know which wall it is. Yu Qian said after a pause, probably looking for a reference.

"Facing the wall diagonally upwards to the left, I am diagonally upwards to the right...... This is indeed a symmetrical mirror image. I pondered for a moment and said to myself.

"What do you say? What's wrong? Yu Qian asked curiously.

"You go and shoot the other walls and see if you can find Zhou Jun and Boss Taiyi......" I shouted again.

Yu Qian responded for a moment, and then fell silent. After a few minutes, Yu Qian on the opposite side slapped the wall and shouted.

"Zhou Jun was behind the wall that was diagonally upward in the thief cave, she said that she was in the original cave, and she was originally watching me study the murals, but who knew that she didn't see me when she turned her head, and then you also disappeared."

"Huh? Can you hear Zhou Jun speak? I asked, surprised, all I heard was a faint tap.

"I can hear it, and I can hear it too. He's the same as you, he doesn't see anyone when he opens his eyes. Yu Qian said again.

"Like me? So who is in the original burial chamber? Yu Qian, you ask everyone to see who remembers the relative position of the tomb and the robbery cave at the beginning. "I'm a little confused right now, trying to find a direction, but I need to confirm some news.

Yu Qian said without thinking about it: "I know this, I deciphered the murals on the two walls, and wrote down the order and direction. Directly below the 45-degree slope is a mural of the Night King's Studies, which depicts three mountains, and the wall is supposed to rise from left to right. On the left, there is a mural of the Night King's conquest, and in the face of the mural, the Night King leads his troops through the jungle and mountains from right to left. Further to the left, I haven't studied it yet, but there is a very vivid picture in the upper left corner, which is a pattern of a young girl, which I remember very clearly, and it is not wrong, and my burial chamber is indeed original and unchanged. ”

When she said this, I followed what she said and was looking for a position, and it turned out that she was right, and her position was indeed the original position, because the paintings in my tomb were all reversed. So, it was indeed me, Zhou Jun and Boss Taiyi who disappeared.

"I know, you tell those two people not to worry, I've found my eyebrows, I'll figure out a way to meet as soon as possible. During this time, don't wander around, just wait where you are! I pondered it again, and then said to Yu Qian.

"Good! I continued to interpret the murals, and I felt that the last two were the main points. Yu Qian answered and told me a message.

I agreed to her, and then I spread out the yin and yang diagram and began to use the original real diagram to find the direction directly. At this point, it is naturally indispensable to use the skills of housekeeping and divination.

The two hexagrams were thrown out one after another, and when they were combined, they were completely reversed, left was right, front was back, and even the hexagram was reversed, and it had to be interpreted in reverse.

The diagram was changed to the opposite direction according to the hexagram, and the eight cases suddenly scattered and rotated counterclockwise, which happened to correspond to the orientation of several mirror tombs at this time.

Through the diagram, I found the respective points of the four of us, and in the center of the eight-point pattern is Yu Qian's original position, and she is adjacent to all of them. Except for her, I am only adjacent to Boss Taiyi, but the distance between them is farther, which means that the wall is thicker. And there is a tomb separated from Zhou Jun, but fortunately, there is no one in this tomb, so it is a vacuum transmission, and I can hear a little bit of her tapping.