Princess Lin'an's Mansion, one coffin after another was carried into the carriage, Li Jie accompanied his father to stand aside, since returning to Beijing, he has been staying here during this time, helping his father and Li Qi and his wife take care of the affairs of the Li clan.

"Father and mother, take care of yourself along the way!" After all the coffins were loaded into the carriage, Li Jie stepped forward to say goodbye to Li Zhu and his wife.

After a few days of discussion, Li Zhu and Li Qi decided to send Li Shanchang and others back to their hometown in Haozhou for burial, but Li Qi is now restricted in his movements, and he is about to be resettled in Jiangpu to live, so Li Zhu can only escort the bodies of these family members back to his hometown, and Mrs. Li is not at ease with her husband, so she decided to accompany him back to her hometown.

"Jie'er, you are in the capital by yourself, and you should pay more attention to your surroundings!" Mrs. Li took Li Jie's hand at this time and said very reluctantly, not only is she going to leave this time, but even Aunt Zhao and Di'er will return to their hometown together, so Li Jie is the only one left in the capital, although she is taken care of by Liu Ying's father and son, she still can't rest assured.

"Mother, don't worry, I'm not a child anymore, I'll be fine!" Li Jie smiled and comforted.

"Jie'er, your fifth uncle is going to Jiangpu, it's not far from the capital, if you have time, you can also go to him to walk around!" At this time, Li Zhu also sighed and spoke.

Li Qi is Li Shanchang's sister-in-law, and married Princess Lin'an, although this time because of Princess Lin'an's relationship to save his life, but was relegated to Jiangpu County to live, usually without Zhu Yuanzhang's consent, it is difficult to even go out, in fact, it is almost the same as house arrest.

"I know, don't worry, father!" Li Jie nodded solemnly and said, Li Zhu has also resigned from the Ordnance Bureau, after all, there has been such a big change in the family, and he has no intention of being an official anymore.

Looking at Li Jie, who was already taller than himself, Li Zhu also felt that his son had really grown up, and immediately reached out and patted him on the shoulder, and did not say anything more.

At this time, Li Qi and his wife also came over, they were also packing their things, and they were going to move to Jiangpu County later, if nothing else, they would never have the opportunity to set foot in the capital again in their lives, which made them and their husband and wife also depressed.

Li Zhu and Mrs. Li could also understand the mood of Li Qi and his wife, so they stepped forward and whispered to comfort them for a long time, and finally left for a long time, Li Jie and Li Qi and his wife sent them out of the city, until the long line disappeared on the official road, Li Jie accompanied Li Qi and his wife back to the princess's mansion, and then Li Jie sent them out of the city to Jiangpu.

After finishing everything, Li Jie also felt exhausted, and when he returned home, looking at the empty home, Li Jie also felt a little lonely, which made him think of Zhu Yuning, and he didn't know when Lao Zhu would let them get married?

The next morning, before Li Jie got up, he heard someone calling the door outside, he put on his clothes to open the door, but unexpectedly found that outside the door were Yuan Jianzheng, Ma Hama and Guo Zhenglin.

"Why are you here, please come in!" Li Jie was surprised when he saw Yuan Jianzheng and the others, and then he suddenly remembered that Zhu Yunxi had told him before that Yuan Jianzheng and they were looking for him, but he had been busy with family affairs in the past few days, and he didn't bother to ask them.

"Brother Li, we came here this time to ask for something!" I saw that Yuan Jian was saluting Li Jie solemnly, they actually wanted to come to see Li Jie for a long time, but they knew that such a big change had happened in Li Jie's family, and they definitely didn't have time to see them, so they waited until today.

"What's the matter?" Li Jie was also stunned, speaking of which, the four of them could be regarded as having lived and died together once, and later because the hot air balloon also communicated frequently, so they were already very familiar with each other, and now Yuan Jian was talking to him so solemnly, Li Jie also felt a little surprised.

"Brother Li, I heard that you taught him the new arithmetic science taught by the king of Guangze County to the officials of the household department?" Without waiting for Yuan Jianzheng to answer, the youngest Guo Zhenglin also asked first.

"That's what you're here!" When Li Jie heard this, he immediately guessed their intentions.

The introduction of various operational symbols in mathematics is definitely a major innovation in the mathematical world, Li Jie only taught Zhu Yunxi some basic symbolic mathematical principles before, and now it has spread through the household, and astronomy has always been closely related to mathematics, almost all people who are proficient in astronomy have a deep knowledge of mathematics, so it is normal for Yuan Jianzheng to be attracted to them.

"Don't hide it from Brother Li, after we saw the new arithmetic science you taught, they were all amazing, not only greatly simplifying our calculation process, but also finding a solution to many unsolvable calculations."

Yuan Jianzheng said this, but suddenly paused, and then showed a little embarrassed look and said again: "It's just that this new algorithm is too magical, we can only do some superficial use, and there are many questions that we still need to ask Brother Li for advice!" ”

Li Jie was not surprised when he heard this, what he taught Zhu Yunxi was only some of the most basic applications of symbolic arithmetic, and there was a fixed set of algorithms on the household side, so the mathematical symbols could be used directly, but Yuan Jianzheng They needed to use many groundbreaking operations, which required them to be extremely proficient in arithmetic, so he wanted to ask Li Jie to teach more symbolic arithmetic.

"This is no problem, I will go to the Zhan Mansion in two days to take up a job, and then I will accompany His Royal Highness the Emperor Sun out of the palace, and by the way, I will teach him some arithmetic, if you are interested, you can also come and listen!" Li Jie agreed with a smile.

"That's great!" Seeing that Li Jie agreed, Yuan Jianzheng and the three of them all showed excited looks, but then Yuan Jianzheng showed a little embarrassed look, hesitated for a moment before saying again, "Brother Li, we Qin Tianjian have a lot of people who are interested in the new arithmetic, so there may be many people who want to listen to your lecture at that time." ”

"This is easy to do, if there are many people, I will simply do a class, in addition to arithmetic, I also have some insights on astronomy and geography, then we can discuss it together!" Li Jie nodded again.

Although Qin Tianjian was a Qingshui Yamen, it was the closest department to science in the ancient dynasty, and most of the officials in it were technical officials, and Li Jie had long wanted to communicate with these people.

Seeing that Li Jie agreed so happily, Yuan Jianzheng and the three of them were surprised and admired, because most of them have a private idea of learning, and many people's knowledge is passed down from father to son, such as Yuan Jianzheng and Guo Zhenglin, so they are also easily unwilling to pass on their knowledge, but Li Jie's approach is completely opposite to them.

Li Jie and Yuan Jianzheng haven't seen each other for a long time, and it's rare to get together today, so Li Jie simply made the east and invited them to go to the restaurant for a small get-together.

However, before Li Jie could lock the door, he saw a team of guards rushing over, and then an internal rumor stepped forward and said: "Li Banyu, Your Majesty urgently called, saying that someone from Ningbo Mansion is here, let you go to greet Your Majesty!" ”

"Zhang Dingbian is here!" Li Jie couldn't help but feel happy when he heard this, although he knew that the other party would come, but he was still very happy to hear the news.

"Brother Li, since Your Majesty has an order, then we won't bother, let's get together again another day!" Yuan Jianzheng was also very knowledgeable at this time, and Ma Hama and Guo Zhenglin also saluted him and said goodbye.

Li Jie was not polite, and immediately said goodbye to Yuan Jianzheng and the three of them, and immediately rushed to the direction of the city gate with the guards, and when he came to the city gate, he did not wait long, and soon saw a bald old monk coming on foot, followed by eight disciples, it was Zhang Dingbian.

"Master Mu, you're really here!" When Li Jie saw Zhang Dingbian, he immediately stepped forward excitedly and saluted.

"The stakes are high, of course I can't help but come, but does your Emperor really want to see me?" Zhang Dingbian smiled at Li Jie, and then asked.

In fact, before Zhang Dingbian came, Zou Pusheng and Li Hong also advised him to think twice, worried that Zhu Yuanzhang would not be good for him, but Zhang Dingbian didn't care, first, if Zhu Yuanzhang really wanted to kill him, he didn't need this method at all, and secondly, Li Jie's letter also made it very clear that Zhu Yuanzhang was willing to give more favorable conditions, but he needed to negotiate in person, and this was also something Zhang Dingbian could not refuse.

"That's nature, Your Majesty is waiting in the palace!" Li Jie said that he invited Zhang Dingbian to get into the carriage, he had already inquired clearly from the eunuch who reported the news, and after Zhu Yuanzhang learned the news that Zhang Dingbian was coming, he also specially set up a banquet in the palace, and waited for him to go to the banquet.

Zhang Dingbian did not hesitate, directly boarded the carriage, and then the group passed through the capital, and finally entered the imperial city, but Zhang Dingbian's eight disciples were stopped when they entered the imperial city, Zhang Dingbian asked them to wait at the city gate, and then followed Li Jie through the heavy palace to the outside of the Dongnuan Pavilion.

It's just that what Li Jie didn't expect was that Zhu Biao was standing outside the door, and when he saw them, he immediately stepped forward, and said to Zhang Dingbian: "The master came from afar, and my father has set up a banquet in the pavilion to catch the wind and wash the dust for the master!" ”

Zhang Dingbian didn't know Zhu Biao, and after Li Jie quietly introduced Zhu Biao's identity to him, he looked at Zhu Biao a few times in surprise, and then returned the courtesy: "His Royal Highness the Prince is polite, the poor monk and His Majesty have not seen him for many years, and they miss him a lot, and they ask the prince to guide the old monk!" ”

"Master, please!" Zhu Biao smiled slightly, and then personally led the other party into the warm pavilion.

Li Jie wanted to follow in, but he didn't expect to be stopped by Zhu Biao and said: "Don't go in, my father said that no one is allowed to go in except Master Mu Jiao, so you just wait outside the door!" ”

"So mysterious?" Li Jie was also a little speechless when he heard this, Zhang Dingbian was brought by him, but he didn't let him in when he got to the door, could it be that Lao Zhu and Zhang Dingbian still had something to talk about?