The cave where Xia Wanyuan was standing was excavated. There were rock walls on both sides, which could barely accommodate one person,

Junshiling took Xia Wanyuan's hand by his side and motioned the people standing behind him to step back,

From the outside to the inside, professional technicians built a passage to bear the collapse strength of the mountain, just in case,

Under heavy security protection, junshiling gave Shen Qian an order, "open it."

"All right."

The personnel who have been prepared for a long time carefully follow the route that has been studied for a long time and dig slowly,

The rock strata here are much harder than those outside. The staff have been digging for a long time, but they still can't get through,

Xia Wanyuan has been standing by and watching. The mountain here is black, and the sound of the rock is very clear,

When the staff prepared to change the direction to continue digging, Xia Wanyuan came over, she looked carefully, and then drew a large circle of area, "you get all the soil above."

Although the staff were puzzled, they were the boss, so it was hard for them to say anything. According to Xia Wanyuan's instructions, the whole soil layer of the stone wall was removed,

With the fall of the earth and rock, the rock layer behind the earth and rock gradually unfolds in front of the public. The rock is dark, with spiral patterns, inexplicably mysterious,

At the sight of the rock, Xia Wanyuan's face changed slightly,

He grew up in the royal family of the Xia Dynasty and was quite familiar with this kind of rock,

This is a kind of ink stone produced in yuxu mountain. Because the stone wall is hard, it will not be eroded by rain, mosquitoes and insects. It is a special material for the tomb wall of the royal family in previous generations. Moreover, because the production is rare, only the emperor is qualified to use this kind of material.

The staff collected some samples and tested them on the spot. They were immediately surprised,

This kind of rock, in the current records, can't find a reference, that is to say, it's a brand new category,

Moreover, according to the test results, this kind of rock is extremely hard, and it can't be chiseled with the existing tools. No wonder they haven't been able to open it after working for so long,

"Madam, Mr. Jun, I'm afraid we can't get in today. We have to re-examine the cutting tools to get into the cliff."

As soon as the staff got up to pick up their things, Xia Wanyuan went to one side, picked up the cutting tool and knocked on the rock. Then everyone saw that cracks appeared on such a hard rock wall,

Xia Wanyuan handed the tools in his hand to the staff, "strike ten times in the middle of each spiral pattern, and then chisel along each spiral pattern and its texture."

They took the tools and did it according to Xia Wanyuan's words. They actually made a crack. Some professionals on the scene looked at Xia Wanyuan with bright eyes. Because Jun Shiling was standing by, they could resist their curiosity.

After nearly two hours of hammering, they finally cracked the rock,

The staff pulled open a large protective cover and asked other people to retreat a little. Then they pulled the mechanism and the whole rock wall collapsed,

After detecting that the air released from the opposite side was non-toxic, the crowd removed the protective cover, and the scene on the opposite side appeared in front of the crowd,

At this time, even junshiling was shocked by the appearance behind the stone wall,

Behind the cliff, there is a long corridor. What surprised people was not the corridor, but the countless burning lights extending to the end.

In such a deep underground, one by one on the lampstand, jumping the bright red flame, inexplicably let people feel a cool heart.