From Tao Yingfu, follow a paved road all the way to the mountains, the road is not very smooth, but the paved stone road makes the road very easy to walk. The willow tree next to it sprouted, highlighting a hint of tender green, letting people know that spring has arrived, spring is the season of hope, and the warm sunshine seems to make people full of desire for a new life.

After walking for nearly ten miles, military camps appeared on both sides of the road, and a checkpoint appeared on a road leading to the mountain, which was guarded by many elite soldiers. Seeing that it was Tao Yinglai, the soldiers hurriedly opened the gate and let Tao Ying and the others enter the camp.

Walking into the mountains, on both sides of a valley, many courtyards appeared beside the huge pine trees, and groups of soldiers patrolled unstoppably, and carved a few big characters on a stone entering the valley "Surveying and Mapping School".

Next to it, a line of words was engraved: "Military land, those who intrude will not be forgiven". Entering the valley, the courtyards surround the valley, the houses are scattered, and the babbling stream flows down the mountain, this place is really a beautiful place.

In one of the most conspicuous places in the courtyard appeared a huge palace-like building, in which many people came and went.

Tao Ying led Liu Ye and walked straight to the gate, Liu Ye didn't know why, since it was Tao Ying who came, the soldiers and students and teachers wearing Xiucai robes here did not salute, nor did they come to visit, but as if they hadn't seen Tao Ying, they were still busy themselves.

Tao Ying entered a palace, and after entering, it was still busy inside, everyone just looked up and saw that Tao Ying lowered his head and continued to do his work.

Liu Ye was even more surprised when he entered, this palace was built in the canyon. The huge palace seems to be endless, and inside is a sand table like a table. There is also a slogan written next to the sand table, Tao Ying led Liu Ye to turn left and right and walked to a huge sand table, and the sand table was marked with two big characters - Yanzhou!

Looking at the middle of the sand table again, Liu Ye was even more surprised that his mouth couldn't be closed. That's right, Yanzhou's mountains, plains, cities, rivers, and roads are all scaled in the sand table according to the scale, and it looks so real, even next to some of the more important cities, even some towns are simulated by the sand table!

That's right, this is the map made by the Surveying and Mapping School in the past two years! The paper map is only for marching and fighting, but Tao Ying wants to make a sand table map of Kyushu here!

In two years, due to the lack of funds and personnel, only a sand table map of the surrounding map of Tao Ying has been produced until now. Yanzhou, Qingzhou, Xuzhou, Yangzhou, the map is only these states, but with the continuous improvement of these states, Tao Ying will also send personnel to further places to measure, then there will be a thumbnail map of the world, and then copy a copy in Pengcheng, if there is a war, you can strategize, and win thousands of miles away!

Looking at such a sand table, Liu Ye was a little shocked in his heart, they had studied Cao Gong so thoroughly, if there was a real war in the future, how sure could Cao Gong be?

Liu Ye secretly calculated in his heart, he took a boat from Yanzhou all the way to Pengcheng, and there were many fertile fields in Shanyang County, but the wheat produced was growing like Yanzhou. When I entered Peiguo, there was not much change. Only when he arrived in Pengchengguo, the wheat fields in Pengchengguo were green, and the wheat was twice as wide as Yanzhou.

When visiting Zhang Zhao, Zhang Zhao proudly told Liu Ye about Pengcheng's new wheat and fertilizer technology. Now this kind of wheat can harvest nearly 600 catties of wheat per acre, while wheat in other places can only keep more than 300 catties, if Peng Chengguo popularized this wheat planting technology, Xuzhou's grain and grass reserves will be so terrible!

Grain and grass, Cao Gong is not as good as Xuzhou. What about the exchange of information? Every mountain and every river in Yanzhou is well known to Xuzhou. If there is a war, how to set up camp and where the enemy will set up camp, Xuzhou is clear at a glance!

These two sons are really gods!

Liu Ye had to admire the Xuzhou Pastor who was only twenty-five or sixteen in front of him! The position of the state pastor is also the official position that he asked for from Xu Du after he occupied Xuzhou, captured Donghai County, and mediated with Lu Bu.

The current official position is the least valuable, and there are three people who serve as the pastor of Xuzhou Prefecture, and they are all canonized by the imperial court, one is the pottery merchant who occupies Xiaopei by his eldest brother, and the other is Lu Bu, who originally took refuge in himself and was independent.

Cao Cao just let himself kill each other, so he sealed so many state pastors, you fight, whoever has the ability should go, when you fight and both lose, I will clean you up!

However, Cao Cao's tricks, Tao Ying who crossed over knew it, so he was not afraid of him.

Liu Ye was secretly thinking about some things in his heart, Tao Ying led him to the Donghai County sand table for a generation, and then pointed to Donghai County and asked, "Mr. Liu thinks that this East China Sea can be defended!" ”

Liu Ye looked at the sand table and nodded.

"Although Wenhou is brave, Langya and Lu have been in war for many years, and there is no shortage of food and grass, so there is no big battle within two years. But when I watch the wheat ripe, Wen Hou may go south to the East China Sea to loot grain, and Taozhou Mu must be guarded against. ”

Will Lu Bu come to harass himself? Tao Ying really didn't expect that he had two places to connect with Lu Bu, and now he didn't want to contradict Lu Bu during the period of peaceful development, so Tao Ying wanted to ask Liu Ye again.

"How did Mr. know that Wenhou would rob my grain, and how did Mr. think it would be better to prevent it?"

After Tao Ying asked, Liu Ye stopped talking, seeing that Liu Ye didn't speak, Tao Ying knew that he was Cao Cao's person, where was he willing to help himself like this. So Tao Ying said again: "Mr. is here but only Cao Pi is so, but Cao Pi is very important to my Xuzhou, just like the emperor is to Cao Gong!" ”

After Tao Ying finished speaking, Liu Ye nodded. He had thought about this question when he was on the road. There are many wise people in Xuzhou, Kong Rong, Zhang Zhao, Sun Shao, and Yan Yan are not good stubble, how can they not know the importance of Cao Pi?

When Liu Ye went to visit Zhang Zhao, he proposed that he wanted to come to greet Cao Pi, but Zhang Zhao flatly refused. Now he had to come to Tao Ying to see if he could complete his mission.

Tao Ying said the importance of Cao Pi, and Liu Ye said beside him: "But before the contemptible people came, they promised the general to take Cao Pi back. Tao Ying sighed and said: "Although Cao Pi is heavy, if Mr. can come to Xuzhou, he can be accompanied by Mr. every day, and death is enough!" ”

Tao Ying compared his importance to Cao Pi, and said it so sincerely, which really flattered Liu Ye. After a while, Liu Ye suddenly knelt on the ground on his knees and said, "Lord Zhou Mu is so loving, how can Liu Ye not follow him?" However, I can't be dishonest with others, if Lord Zhou Mu asks Ye to send Cao Gongzi back, Ye will be like each other from now on! ”

Tao Ying stretched out his hand to help Liu Ye up, but Zhou Tai next to him persuaded him: "Lord, don't let him send him back to Cao Pi, what if he just excuses?" When Cao Pi leaves, he will definitely not return! ”

After Zhou Tai finished speaking, Tao Ying looked at Liu Ye and said: "I believe that Mr. Liu is definitely not this kind of untrustworthy person, sir, I will agree to Mr. 's request, and I hope that Mr. will not forget the agreement between you and me!" ”

Liu Ye was also embarrassed, Tao Ying believed that he could not be so untrustworthy, so he pointed to the sand table and said, "Sir, can you tell me why Wen Hou came to rob my grain and grass?" ”