Thunder Cliffs have a dense and complex complexity.

Xiang Yun found that under these or facilities, there was a large-scale basement, and when he explored the basement with a ghost heart, he found that the area included accommodation and cultivation areas, in addition to various control rooms, which could be directly connected to the facilities on the surface to complete material processing and production by remote control.

"The production capacity of this ancient sect has almost entered the stage of automation. ”

Xiang Yun commented, and then continued to explore, and it didn't take long to find a huge metal door.

This metal door is about two feet high, and the thickness is quite amazing, even with the strength of the ghost heart, it is very difficult to blast it open.

Seeing this, Ghost Heart immediately said: "This gate seems to be using a kind of sturdy dark iron that has never been seen before, it should be able to withstand all attacks below the Immortal Realm, and a gate can be made so strong and tight, which is either a shelter to use when disaster strikes, or to store important items, or a central control center." ”

Xiang Yun nodded: "We have to find a way to open it." ”

The ghost heart poured cold water and said: "With all due respect, this is impossible, not to mention that my current strength has not fully recovered, even if I am in my heyday, it is difficult to break the door in front of me." ”

"Why did you break it?

Ghost Xin didn't quite understand what Xiang Yun meant by this, he saw Xiang Yun walk directly to the stone door, first gently tap and push a few times on the stone door, and the center of the stone door immediately separated left and right, revealing a basin-sized console.

She could see that the console was full of dense symbols.

This symbol has never been seen before, and it may be the original symbol of the ancient sect.

Obviously, this door is a code door.

If it's a password door, it's simple.

Xiang Yun stared at the console in front of him, and then released the Heavenly Book Yuan Soul and began to deduce the correct password to enter...... At this moment, Xiang Yun seemed to hallucinate, his vision seemed to pass through the loss of control, and he saw an almost transparent hand, operating on the console, pressing twenty symbols in order.

This must be the picture deduced and restored by the Heavenly Book Yuan Soul according to the clues remaining on the console, and Xiang Yun only looked at it once, and wrote down the order of the twenty symbols.

He typed in twenty symbols one after the other.

Whether it's the order or the time pressed, it's all exactly the same as you see.

When Xiang Yun pressed the last symbol, from the left and right of the huge metal door, he immediately remembered the sound of the formation mechanism being activated, and then saw one after another, heavy metal doors that were overlapped, all of which were opened in front of him, revealing a secret room hidden in it.

Seeing this, Ghost Heart's expression changed slightly.

She could see that what Xiang Yun used was not Taoist hexagram at all.

Because it is impossible to calculate such a thing as a password in hexagrams, divination with Taoist hexagrams can often only get very simple results, such as "bad luck", such as "good and bad", or get very general hexagrams, and you need to understand it yourself in order to interpret the heavenly machine.

There has never been a hexagram that can accurately calculate the password of someone's bank card, not to mention that this giant door password is far more complex than the bank card password ten times, and the giant door has not been opened for countless years, Taoist hexagram is not accurate for such an object.

Xiang Yun went against common sense this time.

There are a lot of secrets in this man.

Xiang Yun didn't care about the thoughts of the ghost, as long as the restrictions she left on her were not broken, she didn't dare to do anything to herself. Xiang Yun walked into the secret room, quickly looked around, and found that this place seemed to be a data room.

There are a lot of documents and materials stacked in the wall cabinets around the perimeter.

Xiang Yun believed that this might be the experimental notes of the ancient sect, or other important documents related to production, there was no doubt that these things were of great value, and some of the research and experiments were beyond the current human level.

But there are too many.

It is impossible for Xiang Yun to move out completely.

He could only selectively take some of it.

Xiang Yun walked towards the secret room, the secret room has several floors, its shape is cone-shaped, the closer to the inside, the smaller the room, when Xiang Yun walked to the innermost room, there were no documents and materials here, only a high stone platform, and on the stone platform was a huge classic.

This giant book is more than two meters tall and about a meter thick, from the cover of the book to the pages inside, it is made of a jade-textured, but flexible material, even after so many years, it still exudes brilliance and gives people a sense of atmosphere.

What is this?

Ghost Heart showed a solemn expression when he saw this thing.

Even if she didn't read the contents of it, just by looking at the material of this classic, she knew that this thing was definitely a priceless treasure, and there must be a reason why it would be placed in this place.

Xiang Yun directly outputs a force of yuan.

Slowly turn a page from a huge tome.

Xiang Yun saw a huge design drawing, which was not presented on the pages of the book, but was illuminated like a projection, so that the extremely complex three-dimensional structure could be better displayed.

Xiang Yun lightly touched a part of this three-dimensional design with his hand, and on the huge jade page, there were analyses and formulas, some of which could not be expressed in ordinary words, and they were directly written in origin runes.

Where the hell did this thing come from?

Xiang Yun used the Book of Heaven to check, and finally got a name "Thousand Machines Treasure Book"!

The Thousand Machines Treasure Book is not the inheritance or practice of this sect, but an encyclopedia that circulated in the contemporary era at that time, which recorded a technique called Thousand Machines Jue, and included a large number of knowledge of the use of puppets and formations.

Qianji Jue is a Mohist-style exercise, and this treasure book has a very high collection value, because the knowledge in it is systematic, with very high practical value, it can be called a textbook that craftsmen must observe.

However, the manufacture of a thousand machine books is extremely difficult.

The resources required for such a treasure book were enough to bring down a small and medium-sized sect at that time, so only the top strength and even the ancient kingdom could collect it.

Xiang Yun had no plans to cultivate the Mo family.

Because Mohist is very different from other schools.

If you follow the route of the Mo family, you will become a scientist, studying all kinds of things, which is a very energy-consuming and practical thing, even for Xiang Yun, he has no intention of entering the Mo family for the time being before he becomes strong enough.

However, since I have encountered it, I will naturally not give up in vain.

Xiang Yun took down the Thousand Machines Treasure Book and put it into the space belt, preparing to take it back first and find a time to study it.

Jilei Cliff has been explored here, and it is basically the same, although there are still many valuable things that have not been taken, and there are still some areas that have not been visited, but the relationship of time, Xiang Yun will not explore them one by one.

He planned to tell the people from Xichu University about this place after he went out.

In this way, the things here will not continue to be dusted.

You can also make a great contribution to yourself.