Left the assembly hall, Yang Tian returned to the rune department through the transmission array.

Hui\'e Miaomiao and hui\'e Chan, two sisters, follow Yang Tian step by step.

Now the Fuwen Department has a very different attitude towards Yang Tian. It has prepared a big studio for Yang Tian.

After entering the studio, Yang Tian closed the door and began to draw design graphics in the curious eyes of the two sisters.

If only there were advanced electronic technology, the drawings could be printed in less than an hour.

Now, it needs to be drawn by hand.

Although it is a strange program to control the body to draw, it is also a very tired thing for Yang Tian.

Because he should try his best to restrain his thoughts so as not to affect the strange program.

It took Yang Tiancai ten days to draw the drawings, and then five days to list all kinds of materials needed to build an underground city.

Hundreds of drawings were designed, and the material list was dozens of pages, all in a thick stack.

Having finished all this work, it\'s not finished yet.

Later, Yang Tian also needs to select the site, formulate the construction process and methods, as well as the mobilization of various manpower, etc.

Fortunately, Yang Tian only needs to take a general direction and make specific plans, and each department should refine the division of labor.

After handing in the drawings and material list, it was a lot easier for Yang Tian.

The chosen place is next to the clan land.

Thousands of people from the rune division acted at the same time, delineated a range of tens of kilometers, and laid out the rune array drawn by Yang Tian.

Immediately, hundreds of thousands of people started work at the same time to dig a large V-shaped pit several kilometers deep.

Hui\'e and miao\'miao were sent out by Yang Tian to be responsible for purchasing.

The largest number is the fine bluestone that can depict runes.

Fortunately, there are storage tools and transportation is very convenient. Otherwise, it is estimated that a huge underground city will not be built in ten years.

In less than half a month, all the materials Yang Tian needed were collected back.

Yang Tian heard that in order to get these materials, hui\'e Miaomiao went to the distant cloud region and spent most of the hui\'e family.

At the same time, Yang Tian also got the news that not only the Huie family, but also other families are starting to build new ethnic lands.

Some senior Fuwen masters of the three temples were invited by some families to design new clan lands for them.

It is said that the strange animals from the Star River have gone deep into the continent. It is estimated that there will be another animal tide in less than three years.

This is a strange world. In order not to let the mechanical family grow, human beings always insist on not using high-tech electronic equipment, even the cloud domain.

Otherwise, animal tide is not a big problem for humans.

When Yang Tian was free, he looked through the history of the continent and finally knew the reason.

It turned out that in the distant past, with the advantages of fast reproduction and strong attack ability, the mechanical family almost unified the whole continent and wanted to turn all human beings with flesh into mechanical bodies.

Only with the joint suppression of practitioners can the mechanical clan be weakened.

Since then, human beings have stopped using high-tech electronic products and began to study runes and replace electronic energy with Rune energy.

After reading this history, Yang Tian took out a red crystal from the storage bracelet.

This was left after the machinery of a beautiful woman of the mechanical family was destroyed during the last animal tide.

From this crystal, we can see that the mechanical family also uses runic energy. And no worse than humans.

It is worth mentioning that the mechanical family can also practice, just like human beings with flesh.

However, their way of practice is completely different.

There is no detailed record of what kind of practice it is in the history books. Because for the mechanical family, this is a big secret. The practitioners who have the physical body are not interested in this.

Looking at the red crystal in his hand, Yang Tian vaguely felt that one day he might use it.

At the command of the patriarch, middle and low-level practitioners also joined the construction army. Millions of people took turns to dig pits. Just in less than three months, they dug a V-shaped pit with a radius of more than 50 kilometers and a depth of five kilometers.

Yang Tian was shocked by the speed of this work.

Actually, it\'s not surprising.

People in this world are already strong. With the help of practitioners, they help to transport soil and other materials, which is equivalent to simplifying the procedure.

The rune array designed by the strange program and the rune energy generated repel all water and gas. In the whole construction process, there is no water seepage, and even the sand and stone excavated at the bottom thousands of meters deep are very dry.

It is worth mentioning that when the excavation was 5000 meters deep, a rich lice crystal mine buried underground was found.

This makes Huie Baixing both happy and helpless.

Because it\'s impossible to find another place to dig such a big pit again for this lice crystal mine?

So I can only bear the pain to continue.

After the pit was dug, the runes began to be busy again.

They had to lay a rune array in the pit again to form a three-dimensional projection. After the projection is completed, the three-dimensional projection is built around the bluestone to build the shape of the underground city.

"Bruce Lee, when this place is built, we will be the hunting department!" Yang Tian said to the listless little Bruce Lee, sitting on a pile of bluestones and looking at the hot scene ahead.

This period of time is really boring for Xiaoqinglong

Yang Tian felt the same way. He felt that his bones were about to rust.

I don\'t know. At that time, Huie Baixing will agree

While Yang Tian was meditating, a group of people came from a distance.

The leader is hui\'e hundred stars, and the one half step behind hui\'e hundred stars is a beautiful woman whose beauty is equal to hui\'e\'s beauty.

This beautiful woman is dressed in white robes. Her temperament is completely different from hui\'e Miaomiao. She is like a fairy. According to her appearance, she is about twenty-eight years old.

Behind the woman in white, there are more than ten experts with strong breath.

These people are obviously not members of the hui\'e family, because they have no mark of the hui\'e family.

Hui\'e Baixing and the woman in white were talking as they walked, obviously talking about the underground city being built.

The woman in white looked interested and nodded from time to time.

Yang Tian looked at the woman in white for a few more eyes before taking back his eyes, and then looked at the construction site scene in front of him.

Although this underground city is designed by strange programs, Yang Tian will also have a strong sense of achievement if it is built.

"Yang Tian, you are here!"

Yang Tianzheng was fascinated, and the voice of hui\'e hundred stars sounded not far away.

Yang Tian turned his head and saw that hui\'e Baixing led the group of women in white to come quickly.

"Yang Tian, this is the head of Baiming family, Baiming Siyun." after that, hui\'e Baixing said to the woman in white: "this is our Fudao genius, Yang Tian."

Matriarch! Still a beauty!

At this time, Yang Tiandao was flattered. He didn\'t understand why Huie Baixing wanted to bring the patriarch.