The second master came to the side of the two of them, he asked the two to move the place, and then sat down in the direction where they had just sit.

With his feet spread out, the second master motioned for everyone to get out of the way, and then glanced at the cave opposite.

"I see."

A smile slowly bloomed from Second Master Qian's face.

When Zhang Shouyu and the others heard this, they were still in a fog, and the second master beckoned everyone to come over.

"Come, all sit down with me, in a row."

Everyone acted according to their words, Zhang Shouyu sat down next to the second master of Qian, and then looked at the mural opposite, and sure enough, he found that facial features appeared in the empty faces on the opposite side!

It's just that one facial feature...... They all looked lifeless, the dead fish's eyes drooped, their mouths pursed, how frustrated they were.

"All of them, now slowly come with me and slowly stand up."

The second master continued to command everyone, and everyone acted according to their words, and then let out a series of surprises.

It's gone!

The facial features of the mural in front of Zhang Shouyu's eyes, as he slowly stood up, miraculously all disappeared!

Yanzi and Bu Nan Yu also returned to normal, but this phenomenon is really weird, everyone ups and downs and did many squats, and sure enough, they found that those facial features appeared and disappeared from time to time, and it was weird!

"Second master, what the hell is going on?"

Yang Biao looked at Second Master Qian, but Second Master looked at Situ Ling.

"Adjutant Situ, from a scientific point of view, how should this be explained?"

"It's very similar to the refraction of light, but there is only a flashlight here, and there is no other stable light source, which should be a technique of the mural, which leads to the problem of visual angle error."

Situ Ling has always been a man of action, and as he spoke, he put on his white gloves that were already covered with dirt, and came to the mural opposite to gently rub their facial features.

"This ...... I see, it's not a fresco, it's a relief! ”

"What?"

Everyone was interested in hearing this, and they scattered to the four walls and continued to grope, and sure enough, they found that the face of the mural was different, concave and convex, and there were some ups and downs!

"You have all seen, the face of this mural is not painted, but relief, the ancients handed down a total of two techniques of relief, one is the yin carving, the other is the yang carving, the yang carving shows the atmosphere and dignified, the yin carving does not show the mountain and water."

Second Master Qian slowly walked under the face of one of the people.

"You've all touched the ancient jade in the tomb, right? Very few ancient jade are the manifestations of yang carving relief, and the vast majority of them use this subtraction Yin carving, whether it is a single straight yin line or a double hook yin line, they are all using similar techniques, since the late Shang and Zhou dynasties, there is this kind of technology, here is just the technology used on the stone. ”

"It's not an ordinary stone, it's a green rock!"

Li Ya was obviously also experienced, and took a sip from the side.

"Qinggangyan?"

Second Master was slightly stunned when he heard this: "This is not the stone that should be in this area." ”

"Indeed, it should have been specially transported for the construction of the tomb, I have also seen other karst caves before, many of them are filled with this kind of green granite, and I can see that a lot of time and energy have been spent, even incredible."

Wu Feng rarely has such a high evaluation.

Zhang Shouyu probably understood what he meant, and if the rock material was really transported from a very long distance, then how to transport it became an unsolved mystery.

After all, there were no large-scale means of transportation in ancient times, and if it were not for local materials, such a large amount of stone transportation, it is difficult to imagine how the ancients broke through their technical barriers.

"Although the hardness of this rock mass is not high, it is very convenient for carving, and it has excellent expansion stability, no matter whether the outside temperature is extremely cold or extremely cold, it can be intact, and there will be no cracks due to thermal expansion and contraction."

Situ Ling gave everyone popular science in a timely manner, but it was obvious that Tufuzi was not interested in this kind of popular science.

"Why did this mural do that? Could it be that it's just to hide your face and be scary, right? ”

Bu Nanyu asked while wiping the swallow's tears.

Up to now, the swallow has been frightened by the repeated misfortunes.

Zhang Shouyu understands her very well, after all, she is so young, and she doesn't have as much experience in moving corpses as herself, so it's great that her mentality hasn't collapsed until now.

"This move must be useful, but we can't see it at the moment, let's think about what to do next, at present, it is impossible to continue to go down, we now have a more difficult problem, that is, how to return to it!"

It is rare for the second master to continue to explore, this is not like his style.

However, the words of the second master just now are very real, after all, just after experiencing that calamity, all the pigs and snakes have fallen into the abyss, and one of the two bronze rope bridges that was originally in front of everyone has also been completely blown up.

Zhang Shouyu followed Hanyangzao out of the cave to check, and found that another bronze rope bridge was still far away from everyone.

What's even more troublesome is that because there is no shelter from the bodies of those beasts, when you look up at the bronze rope bridge above at this moment, you will find that it is even more out of reach!

"Second master, do we have enough climbing rope?"

Han Yangzao shouted into the cave.

"Nope."

Situ Ling walked out slowly, and he could see that he was in a very bad mood at the moment.

"I've actually thought about this method for a long time, we have hooks and ropes, but going up is not as simple as going down, under the action of gravity, it is almost impossible for us to throw the hook rope ten meters away."

Situ Ling said it very directly, so direct that he didn't give everyone a chance to be relieved.

Zhang Shouyu understood that he was not alarmist, standing outside the cave and looking up at the moment, the straight-line distance from the rope bridge on the upper floor was at least more than ten meters, or even twenty meters.

This is not the height that a human throwing hook can hit with precision!

What to do?

Everyone was a little silent at the moment.

Zhang Shouyu faintly felt a touch of worry in his heart, in the past, he had always felt that this group of native masters had great powers, but now looking at them, Zhang Shouyu understood what it meant to be a good woman who could not cook without rice.

"I said Second Master, we are all dying now, do you still have the heart to fiddle with these murals?"

Yang Biao complained angrily to the second master.

is indeed different from everyone, at this moment, the second master did not panic at all, still standing up in the cave for a while and squatting for a while, still immersed in pondering.

"Second master, think of a way, it's absolutely impossible to consume it like this, even if you live enough, everyone hasn't lived enough."

Li Ya walked back to the cave, without giving the second master any face, obviously after finding that the hook could not be used, her mood was also extremely bad.

If this group of Tufuzi were to die here today, all the previous efforts would be in vain, and it might even be possible to make a wedding dress for the latecomers, which is extremely aggrieved just thinking about it!

"There should be a way, don't be impatient, my family is still here, my old life is dead, how can I watch it? Besides, there are young talents like Zhang Daochang, if the old man can't take them out properly, the old man is afraid that he will have a bad conscience when he enters the coffin. ”

The second master didn't look up, and spoke slowly while continuing to drill the camp.

Zhang Shouyu didn't expect Second Master Qian to deliberately mention himself, and his face was slightly red and a little embarrassed for a while.

The faces of the rest of the people were not very good-looking, especially Li Ya, who had just been disrespectful to the second master.

After all, the second master ignored many people in his words just now, and it is obvious that this old man did it on purpose.

The older generation of rivers and lakes never quarrel, and sometimes not talking nonsense can also make others feel blocked.

Zhang Shouyu has learned.

"Second master, don't say that, if you have something, I will definitely go down to accompany you."

Han Yangzao said this sincerely, but then he was slapped by the second master of Qian.

"Nonsense again! Old decay can live for a few more years! Phew, touch the wood! ”

It can be seen that the second master of the Qians cares a lot about Hanyang, forcing him to keep groping for the dry tobacco pole with the texture of wood.

In the north, there is a saying that once some people say something unlucky, they will often snort three times in a row, and then immediately touch the wood, and it is rumored that this will relieve bad luck.

Similar customs vary greatly from place to place, the most common is to change the three sounds of the whistle to three hits, but the meaning is basically the same.

"Oh, second master, hurry up and talk about it, we don't have much dry food, if there is really no way to go back now, it's really not a joke!"

Although Hanyang Zao respects the second master, the anxiety at this time is also written on his face.

"Actually, the method has always been in this hole, but you are too anxious, just want to find a bright instrument to make a fortune, but you don't know that sometimes your fortune is trampled on the soles of your feet."

The second master said pointedly.

Han Yangzao has been following the second master for a long time, and he is most familiar with his words, and when he heard this, he turned on the flashlight and began to look at the traces of dragging on the ground.

Just looking at it like this, it really made him see some clues.

"I see!"

"What's wrong?"

Yang Biao and the others all gathered around, and Hanyangzao did not delay, hurriedly shining a flashlight on the traces underground, and the flashlight continued to move with the traces.

"If you look closely at these lines and the footprints left before, can you see anything?"

When everyone heard this, they immediately took a look, Zhang Shouyu was not very good at observing these, but he also saw some clues.

"Brother Zao, I found that many of the footprints left before are very messy, the more you go inside, the more dense they become, but the more you go towards the entrance of the cave, the more sparse they become, and the entrance of the cave is full of our footprints......"

"The little Taoist is right, it's a matter of direction!"

Situ Ling also took a mouth at this moment, and then pointed to the dragging scratches on the ground.

"The scratches here are all facing inward, and none of them are facing outward, which means that if there was really a large amount of ammunition stored in the cave before, or if the Japanese really took away all the original weapons in the cave, then they will definitely not take the road at the entrance of the cave, but the second road in the cave, which we have already argued, but you have forgotten all of them!"