"Why did the good end of the stone wall suddenly fall off, we shouldn't have touched any mechanism just now." After looking at the mural for a moment, I withdrew my gaze and said with some puzzlement.

"Could it be related to that soul-attracting lamp just now? It is also possible that we have just opened the lid of the glass coffin and caused a chain reaction. Li Huiyan guessed.

"It's been so long since we've opened the lid of the coffin, there's no reason for it to change now, and we didn't hear any noise just now." I said.

"Sister Lizi, this is very simple, it must be because these stone walls have been built for too long, and they may fall off by themselves." Xiao Yue said on the side.

I couldn't help but roll my eyes, Xiao Yue didn't really use his brains at all, if things were really that simple, it would be too.

This ancient tomb has been built for more than a thousand years, why does the stone wall not fall off early and late for such a long time, but it happened to fall off when we came here, to say that there is no connection between the two, I don't believe it.

Moreover, I took a few careful observations of the stone wall just now, and found that it is not as simple as ordinary falling off.

"I might know something about why the stone wall fell off." At this time, Qin Gong said slowly on the side.

For a moment, everyone's eyes fell on Qin Gong, obviously wondering what he was thinking.

"Qin Gong, what do you know, tell me about it." I said to Qin Gong. The stone wall suddenly fell off, this thing made everyone puzzled, why did Qin Gong know, could it be that he had seen such a similar thing before?

"Actually, things are not as complicated as you think, what falls off is not the stone wall itself, but a layer of sand and gravel smeared by the tomb builders." Qin Gong thought for a while and said.

"Even if it was the sand and gravel that the tomb builder smeared back then, it couldn't have come off until we came here, after all, it had been so long, there was no reason for such a coincidence." I said.

The sand and gravel that was smeared by the tomb builders did not fall off for more than a thousand years, and it fell off in less than half an hour after we came to the tomb.

The owners of the tombs of all dynasties are obsessed with the art of anti-theft, in addition to setting up a variety of anti-theft mechanisms in the ancient tombs, but also using various secret rooms and secret passages to protect the important things in the ancient tombs.

Covering up the murals on the stone walls with sand and gravel seems normal to me, because no one wants the contents of their tomb to be destroyed.

Although I understand these actions of the tomb owner, it is still a little difficult to understand why these stone walls suddenly fell off.

"In fact, it is very simple, these sand and gravel are specially modulated, and under normal circumstances, they will be tightly attached to the stone wall, and only after the temperature in the burial chamber reaches a certain level, the sand and gravel will automatically fall off." Qin Gong said again.

"You mean we've been staying in this chamber and slowly raising the temperature in the chamber so that the sand and gravel on the walls of the stone walls start to fall off?" I asked.

"Well, that's it." Qin Gong nodded and said.

"That's what happened, and if you knew why, it would seem simple. But if a person who doesn't know anything about it encounters such a situation, I'm afraid he can't even think of these keys when he breaks his head. I said with some emotion.

Since I knew that the stone wall did not fall off because we touched the mechanism in the tomb, then I was secretly relieved, I was afraid that we would not know anything about the mechanism after touching it, and in the end we didn't even know how to die.

"I can't see it, you guys know a lot of things." Xiao Yue patted Qin Gong's shoulder and said with a big grin.

"It's just that I happened to know these things, and it was not a secret in the Qin and Han dynasties." Qin Gong said.

"Sister Xiaoyan, I don't understand it, it's just a few murals, why bother to cover them up." At this time, Dong Shuang asked with a puzzled expression.

"I also think it's a little strange, we've seen a lot of murals before, all of them are not exposed, could it be that the murals in this tomb are hiding some secrets?" I followed suit.

"What's the use of guessing so much, just take a closer look at the mural and you'll know the answer." Li Huiyan said.

"That's just as well." I nodded, then turned to look at a mural on the left side of the chamber again.

The scene depicted in this mural is very simple, it is a scene of ten people talking about things together, and the leader of them is wearing Washington, presumably the owner of this ancient tomb, Chen Huai Wang Liu Zhu.

Except for the owner of the tomb, the other nine people are all male, and it can be seen that there is a considerable age difference between the nine.

The youngest of the nine is estimated to be about ten years old, and the oldest is estimated to be in his thirties, and the strange thing is that these people all seem to be of similar status, and they do not show any restraint when facing the owner of the tomb.

For some reason, my eyes were always drawn to the little boy in the mural, and I always felt that he looked familiar.

The boy was not very old, and he was a lot shorter than the others, which made him look a little out of place in the mural.

"You came to take a look, didn't you think the little boy in this mural was very familiar?" Feeling so puzzled in my heart, I couldn't help but shout to everyone.

"Of course it's familiar, there are noses and eyes, hands and feet, and children all over the street look like this." Xiao Yue said without thinking about it.

"I didn't let you see that." I said a little speechless. Actually, even I don't know why, it's just the first time I've seen the mural, but I always feel as if I've seen the little boy in the mural, which is really weird.

"It feels familiar, but I can't remember where I've seen it for a while." Li Huiyan stared at the mural a few times, and nodded in the same way.

When I heard Li Huiyan say the same, I was even more sure that my feelings were not wrong, we had indeed seen the little boy in the mural, but I racked my brains and couldn't figure out where I had seen him.

"Ahh I...... I know he's asleep! At this moment, Dong Shuang suddenly exclaimed.

"Tell me, who is it?" I hurriedly asked.

"That's it...... It's the ghost boy we saw in the maze earlier. Dong Shuang said. Hearing this, I was shocked, and I took a few serious looks at the little boy in the mural again.

I have to say that the little boy in the mural, regardless of age or appearance, is indeed very similar to the ghost boy we met before, and it is not an exaggeration to say that it was carved out of a mold.

At the beginning, we opened the ghost-faced white jade coffin out of curiosity, and we were almost killed by the ghost boy in the coffin.

If it weren't for Yao Ling'er who happened to appear at the end, I'm afraid we would really be planted in the hands of the ghost boy, so I am also extremely impressed with him.

But even so, when I saw this mural, I didn't think about the ghost boy, after all, how could there be any connection between the two.

"The little boy on the mural is indeed very similar to the ghost boy we met before, is it really the same person?" After looking at the mural for a moment, I said with confusion.

"Perhaps, there are nine people on the mural, except for one of whom is the owner of the tomb, the other nine are likely to be the burial companions of the other nine tombs." Li Huiyan thought for a while and said.

"If these people on the mural are really burial companions, their identities are definitely not ordinary, and they do not show the slightest restraint in front of the owner of the tomb, and they feel like a family." I said.

"Indeed, it is a bit different from the ordinary relationship between dignity and inferiority." Li Huiyan also nodded, and then said: "The identity of these undertakers is extraordinary, which is easy to understand, after all, where can ordinary undertakers have such treatment." Hearing Li Huiyan's words, I also thought it was true, such thoughts have actually been puzzled in my mind for a long time.

The second tomb has a golden silk nanmu coffin and a golden jade robe, the second tomb has a ghost-faced white jade coffin and a golden jade robe, and the fourth tomb has a colorful glazed coffin and human skin clothes.

In the three ancient tombs in the back, nothing seems like what a funeral attendant should enjoy, and even ordinary nobles may not have this kind of treatment.

"If these people are not ordinary, then what do you think they should be related to the owner of the tomb?" I asked Li Huiyan.

"There's no way to guess yet, unless we can see more valuable things in the tomb, no matter how much we guess, we won't be able to confirm anything." Li Huiyan shook her head and said.

I didn't say anything more, and the rest of the group continued to observe the frescoes in the burial chamber. Except for the mural I just saw, I didn't find much value in the other murals, especially the tearful beauty picture, which made me break my head and couldn't figure out what was going on.

"Since everyone doesn't feel the need to go back to the surface for the time being, let's go to the fifth tomb quickly." After seeing the mural, Li Huiyan said to everyone.

"Go to the fifth tomb, then why don't we go back to the cave where the gargoyle mechanism is located?" I said.

When I think of the gargoyle mechanism, I still have a little fear in my heart, without the real feng shui art to drive the stone rune array, we may not be able to deal with the stone statue when we go back.

"Why go back, did you forget the most important thing?" Li Huiyan said.

"What's that?" I wondered. Li Huiyan didn't speak, smiled and pointed to the glass coffin, and I reacted instantly, secretly saying that I was too stupid.

As we have previously observed, the carved patterns on the lid of the glazed coffin are a map, to be exact, a map of the fourth tomb.

Now that we have a map, we don't need to find our way through the tomb like a fly without a head, just follow the route indicated on the map, and we will definitely find the way to the fifth tomb.