I greeted people and started cleaning the restaurant. The guest rooms in the restaurant must not be able to stay, but there was a very spacious horse ring.

Temporarily clean the horse ring and clean it up and you can live in people.

It's better than sleeping in the Gobi Desert and being blown by the wind.

The big bull sat down in the wine shop, took out a cake wrapped in mutton and ate it, and then took a sip of the soup.

The soup is also very simple, but the mutton bones are made of salt, which is the most surprising.

After eating, Daniu kept observing the wine shop, and there seemed to be nothing special.

He said that he was silent, and Mr. Mo would do his job to the teacher.

When Daniu arrived on the third floor, he found that there was an extra ladder.

There are only three layers here, and there is actually one layer above.

I climbed up the stairs and found that the top was sealed.

“What are you doing?”

With a sudden voice, the big bull standing on the stairs looked down and saw Mouu. I don’t know when he was already standing here.

Daniu looked at the top of his head and said, "There are still free rooms on it."

He nodded silently, "It does."

The big bull smelled the roof ceiling, which didn't look like a normal wood smell.

Spray it on the wooden board, and there seemed to be some powder on it.

Taking out the compass, the big bull looked at the changes in the compass, then looked at the top of his head and said, "It's indeed a magnet seal."

Seeing that he was seen through, he said helplessly: "Living in the Western Regions always requires some ways to save lives. In order to take care of the business of Chang'an Order, some things cannot be seen by outsiders."

After saying that, Mouu took out a strange stick.

Moving against the roof, the sound of heavy objects moving from the upper floor of the wooden board was heard, moving for a distance.

The big bull pushed the top of his head and it really opened.

Climbing up the stairs, the big bull looked at the mysterious room.

The room is very short, but very spacious, and the whole room is filled with the unique smell of Guanzhong ink.

The walls around are covered with maps.

Moeu also climbed up the stairs and said, "This is where I arrange many matters in Chang'an Order."

The big cow looked at the place with great interest, and then looked out the window and it was already dusk.

From here, you can see the desolate and vast Gobi Desert.

The big bull turned around and looked at the black stone on the ground and said, "This is a magnet. The design of the secret door just now, the wooden boards at the entrance and the wooden boards covering the entire roof are covered with magnet powder. A magnet is pressed above. It is like the magnet attracting each other, which firmly presses the entrance. It is difficult to push it from the outside to the inside. The power of a normal person will be dispersed by the entire roof, so that under the action of the magnet above, I cannot concentrate my strength at all, unless I can lift the entire ceiling."

Nodded silently.

Daniu said again: "As for the stick you just used, it should be the repulsive surface of the magnet, because the magnets that are repulsive surfaces will repel each other, while the magnet powder on the roof is the opposite of the attracting surface. When the stick is close, the magnet pressing on the entrance will be repelled by the force of the repulsive surface. And you know the exact position of the magnet, so you can easily use the repulsive force to move the magnet."

He bowed silently and said, "The disciples taught by Chang'an Order are indeed powerful."

Daniu smiled and said, "In fact, it is not so difficult after understanding the principle. The two-pole effect of magnets and the analysis of the area of ​​force are just an explanation of the interaction force in mechanics."

He sat down silently and said, "The villain does not understand these profound truths."

Looking at this thin middle-aged man, he looked young but his beard turned white.

His eyes were staring at the sunset sinking in the west.

The big bull also looked at the sunset and said, "Do you actually have salt here?"

He said with a silent smile: "This is all brought by the villain from Guanzhong. How can I afford any salt? I don't use salt for the wine and meat here on weekdays. You are a disciple of Chang'an Order, and the villain cannot treat you badly."

"You're welcome."

Big Niu said.

He whispered silently: "Guanzhong is very peaceful, not as cruel as outside the pass. The salt outside the pass is very precious. When you go to Tubo, use more salt and drink more salt water, which is very important."

The big bull nodded as he heard this, "Since the salt here is so precious, you should keep it yourself."

Moegu said, "The wind in the Western Regions is different from the wind in Guanzhong. The wind here will blow you dry. If you don't have salt for a long time, you will get sick."

"Thank you for your advice."

The big bull looked at him and said.

He said silently: "Let's rest early. The villain wants to sit here for a while. The villain will tell the young general about tomorrow."

He saluted Moe, and looked at him as thin as he felt a little sympathetic.

It must be difficult for him.

The big bull thought so in his heart and came to the horse shed.

The members of the guard team who had been on the road for a day were already exhausted, and after eating, they all slept well.

Sitting next to the fire, the big bull took out the map and looked at the route on the map in the light of the fire.

Several mineral deposits are marked on the map. According to the teacher, these seemingly desolate places have many silver mines buried underground.

It is not so easy to open up a way to transport these silver mines between Tubo and Guanzhong.

Daniu was thinking in his mind that he first needed to know what the situation in Tubo is today.

We also need enough staff to listen to General Li Ji and the Supreme Emperor discussing their views on Tubo in the court.

Nowadays, the court will not send troops.

Besides, according to the teacher, it is obviously unrealistic to send a large group of troops into the Western Regions.

A brief look at the map, it is difficult to march in such a vast desert.

Moreover, Tubo has a vast population but is very sparse.

It is very common to be out of sight for thousands of miles in the desert.

Unless you can lay out supply points on the main roads in the Western Regions and Guanzhong.

It is really important to have a complete transportation line.

This is what the teacher once told me that the Tang Dynasty will likely build an official yamen in the Western Regions in the future.

After the construction of one government office after another is completed, most of the Western Regions will be under the control of the Tang Dynasty.

It doesn’t matter if you open up a business road. If the merchants in Guanzhong want to do business, they have these Western Regions government offices as their backers.

This method is somewhat like the construction of the four counties of Dunhuang, Jiuquan, Zhangye and Wuwei after the Western Regions were conquered during the Han Dynasty, which is also called the Western Regions Protector.

The teacher's idea is the same.

Establish government offices in the Western Regions to control the Western Regions.

With a safe route that will not cause the large group of people to die of thirst, and with supplies along the way, you can save a lot of food and supplies.
Chapter completed!