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"If this is hit, it will definitely become the rhythm of a hornet's nest." Mu Yuexuan's head was full of black lines, and she said this casually, but she quickly realized something, "But we are not afraid of this mechanism, after all, the fifth brother is a strong gold-based ability, with him, we will not have a problem." ”

"But my concern now is that if those crossbows are made of hard wood, then it's going to be a problem, we don't have any wood adepts here. As Zhou Shiyang said just now, this so-called 'crossbow mechanism' has never been found in archaeological excavations, and it cannot exist in reality, it is very likely that because the arrow is metal, it will rust and cannot be used after a long time. So, some particularly strong wood can be used as arrows after being embalmed, and in that case, I really can't stop it. ”

Although Lian Chengxu felt that it was not a good choice to speak up about this matter at this time, he really had to remind everyone, lest they think that the team had a seventh-order gold-based ability and could not take those mechanisms seriously.

Sure enough, as soon as they heard Lian Chengxu's words, most people's faces darkened, and they really knew whether to cry or laugh about the wisdom of the ancients.

Although it was said that it succeeded in stopping the tomb robbers, it also caused them a lot of trouble.

"Don't be discouraged, we only know about the knowledge of the ancient tomb now, and it doesn't necessarily mean that there must be such a dangerous thing in the filial piety tomb, so don't lose confidence, we came here this time to prevent the things of the ancestors from being remembered by the Japanese people, so if we really can't even enter this cemetery, then the possibility of the Japanese people wanting to enter is basically zero."

Hearing Yan Jin's words, everyone was a lot more relaxed, yes, it doesn't have to be something, it's just okay to go up and gain knowledge.

Then, Yan Jin gave Lian Chengxu a look, signaling him not to hit everyone's confidence at the critical point, after all, there are not many people who go in, just these few, if he still causes a strong psychological burden on everyone, it is easy to affect everyone's performance, which will affect the entire task.

Even Chengxu was aware of his problem and nodded, indicating that he knew. Ay...... It's not easy to get a piece of jade that you want.

"Fifth, you should have seen it in some TV series or movies before the end of the world, it is relatively common, and it is very difficult to deal with, I think you must have heard of 'Tianbao Dragon Fire Glass Top', right?"

Zhou Shiyang saw Yan Jin, as well as Mu Yuexuan and Lian Chengxu nodding, but Yan Jun was at a loss.

"Before the end of the world, there was a period of time when tomb robbery was very popular in Huaxia, and one of the more famous tomb robberies mentioned a tomb called ' Tianbao dragon fire glazed roof's anti-theft measures, the process of this structure is very advanced, the tomb is hollow, the ceiling is first laid with a very thin layer of glazed tiles, there are bags of Western Regions dragon oil on the tile, and then there is a layer of glazed tiles, and then it is the sealing mound, as long as there is an external force to enter, the top will be broken when touched, the Western Regions fire dragon oil will see the air, once the tomb robbers approach, it will burn instantly, and the tomb robbers, burial goods, and the corpses of the tomb owners will all be burned. It's a kind of thing that would rather burn the jade than let people steal the contents of the tomb. ”

"I do know this, it is extremely difficult to rob a tomb in such a cemetery." Yan Jin pursed her lips, "I often see this kind of tomb setting, and it is a heartbeat to see it." ”

Zhou Shiyang was amused by her, and hurriedly continued, "But in reality, this is not easy to achieve, but there are also such tombs, this kind of ancient tomb also has a name, called the fire pit tomb, and the tomb robbers in some places are commonly known as the fire cave, which can be said to be a forced anti-theft method." ”

The principle of the fire cave tomb is actually very simple, that is, in the well-known process of organic decay, in the absence of oxygen, a large amount of combustible gas - methane, that is, biogas. Biogas itself is a very flammable gas, in the case of a particularly well closed burial chamber, especially when the coffin is tightly sealed, the gas accumulates in the coffin for a long time, and when the coffin is suddenly opened, if the biogas encounters an open flame, of course, it will be ignited.

"This is the fire hole often said in tomb robbery, but even if the excavation of the fire hole is very dangerous, but many gravediggers are very willing to encounter the fire hole, the appearance of the fire hole means that the tomb is well preserved, but according to my understanding of the Ming Dynasty mausoleum, the possibility of the Ming Dynasty tomb appearing in the fire cave tomb is not large!" Zhou Shiyang paused, "But we can't rule out that Zhu Yuanzhang, the emperor, is going off the rails, so it is still necessary to understand it properly." If we can really successfully enter the tomb of the underground palace, we must be careful not to use open flames at will. ”

"Oh no, I didn't bring two chickens or geese with me!" Yan Hibiscus suddenly said something like this, "I wrote that before entering the tomb, you must first throw two geese or chickens and ducks into it, if they can still live after a while, it means that there is enough air inside, otherwise if we go in, we will wear gas masks." ”

"You can bring a ventilator, just supply oxygen......" The corners of Zhou Shiyang's mouth twitched, feeling that the daughter-in-law of the leader of the Holy Northern Alliance was indeed a special brain, and sometimes the focus of attention was always different from others.

"How do I have a feeling, the more we know about these agencies, the more we feel that we should go to find supplies, and let the eldest brother take people into the tomb." Mu Yuexuan deeply felt that the current team, if they want to successfully enter the underground palace of Ming Xiaoling, they will have to pay a lot of price.

"Actually, I think so too, but now it's too late, they've been going south for so long, and then let them come back, so it's too much waste of time, we can try it ourselves, we work closely together, I believe we can succeed, we have to have confidence in ourselves! Isn't it just some ancient people's mechanism, if we are a modern ability and we are frightened before we enter it, we have already lost in momentum, so we all cheer up, I believe we will definitely be able to. By the way, Zhou Shiyang, what about the other tomb organs? Hurry up and finish, and we're ready to go in! ”

The positive optimism shown by Yan Jin made Lian Chengxu a little ashamed, to be honest, as a mercenary, he had very little contact with the tomb before, and it was not usually this kind of emperor's tomb, so he was a little entangled in his heart.