Li Yuan looked at Li Jiancheng in front of him blankly, and there were many thoughts in his mind: as the Duke of Tang Guo, what he was most worried about so far was the title of Li Wenyuan's Tang King. Although it can be said that the title was given to Li Wenyuan by the emperor of the Sui Dynasty, Li Yuan refused to admit it. But in this case, Li Yuan's subordinates can say it, and Li Yuan's courtiers can say it, but if Li Yuan, who is a prisoner of the country, says such a thing, then I am afraid that the world will laugh at him for his small belly and chicken intestines, and his childishness will not disperse. Therefore, all kinds of resentment caused by this incident were deeply hidden in Li Yuan's heart, and he was determined to follow the example of Goujian, the king of Yue, and endure until the day when he defeated Li Wenyuan in the future, and then ask Li Wenyuan for it back. But at such a time, when he had a request for Li Wenyuan, his eldest son Li Jiancheng put forward such a condition.

Of course, the shrewd Li Yuan also knew that the reason why Li Jiancheng wanted such a handwritten letter was nothing more than to please Li Wenyuan, so as to achieve the purpose of sending students to learn Li Wenyuan's gunpowder-related technology. Li Yuan also knew that in the competition for national fortunes, in the political officialdom, and even in the shopping mall between the most ordinary and ordinary businessmen, everything that could bring benefits and benefits to himself could be done. But the difference is that this matter can be raised by Li Yuan himself, but he didn't think of this, but Li Jiancheng in front of him proposed to use this matter as a bargaining chip to increase the success of the transaction. This made Li Yuan not only feel a little chilled, if this son could even use his father's matter as a transaction, then it would be Li Yuan's own life that he would trade again one day in the future.

The age gap between Li Yuan and his three sons is not very large, and when Li Yuan reigns in the world in the future, he will be in his prime, and these three sons will also reach the age of youth. At that time, Li Yuan's existence will undoubtedly greatly hinder the future of these three sons, and it will inevitably be another bloody storm at that time. So Li Yuan has been trying to balance the power between the three sons, trying to make them look down on each other, but no one can help anyone. He wanted to use this method to induce the three of them to restrain each other to ensure the stability of his reign during the reign.

Li Yuan's thoughts gradually drifted farther and farther away, and he even forgot that his son Li Jiancheng was still standing in front of him. Li Jiancheng saw that his father's hand holding the pen stopped in mid-air like this, and then his brows furrowed, and a trace of murderous intent gradually appeared in his eyes, and then he remembered that what he just said was a little too out of line. He himself also tried his best to promote this matter, so he proposed such a method without hesitation, but he did not take into account his father's feelings, isn't this a disaster for himself? Thinking of this, Li Jiancheng hurriedly knelt down, kowtowed to Li Yuan in front of him, and kept saying in his mouth: "Father forgive your sins, father please forgive your sins." The child was open-mouthed before, saying some nonsensical words, and hoped that his father would not take it to heart, the child and I retired first, and after returning home, the child immediately began to deal with the matter of sending international students to Li Wenyuan to learn related skills. ”

After Li Jiancheng finished speaking, he knelt all the way upside down and was ready to climb out of Li Yuan's room, Li Yuan was already wandering out of the world, but he was shocked by Li Jiancheng's words in front of him and returned to his room. Then he saw Li Jiancheng kneeling all the way and was about to crawl out of the house, so he opened his mouth and said: "Jiancheng, you stand up and return to your father's table, isn't it just a handwritten letter." It's nothing compared to our plans, you just wait here for the Father for a while, and the Father will write it to you. You are my eldest son, don't kneel down so easily in the future, and always pay attention to your own identity. ”

After Li Jiancheng heard Li Yuan's words, he didn't dare to have the slightest disobedience, and immediately stood up and returned to Li Yuan's table, and said with a smile: "The father is the son, and it is natural for the child to kneel to the father, and no identity can prevent the child from doing filial piety in front of the father, right?" ”

Li Yuan ignored what Li Jiancheng said, and instead picked up the pen in his hand. He dipped it in the inkstone again, and then after a little groaning, he began to write the handwritten letter to Li Wenyuan on the paper in front of him. In the letter, Li Yuan once again picked up the posture that he had when he wrote a fold to Yang Guang after a long time, and tried his best to get closer to Li Wenyuan in the letter, so he wrote three pieces of paper and placed them in turn, and after printing his own big seal on it, he put these three pieces of paper into an envelope, and then handed them to Li Jiancheng in front of him and said to him with a smile:

"You have already paid such a big price for your father, you have to do it for your father no matter what, remember that you can negotiate this matter at all costs when necessary."

Li Jiancheng took the order and left, and Li Yuan threw the brush that was a little cracked because of the excessive force he had just written the letter into the brazier next to him, and then expelled the matter from his mind.

After Li Jiancheng took the handwritten letter written by Li Yuan, when he sent an envoy to Dunhuang County in the Western Regions with the letter and a large amount of gold and silver, the letter was only handed over to the envoy for safety. In addition, the gold and silver were all handed over to this envoy to buy off the important ministers beside Li Wenyuan, and Li Jiancheng sat in Chang'an City for more than a month, estimating that the envoy had already done the same. Only then did he set off with great fanfare and began this visit to the Western Regions.

"This Li Jiancheng is trying to give me a problem, he set off from Chang'an City with such fanfare and went straight to my Dunhuang County, the reason why everyone knows about it is not to let me send people to protect his life? If he really lost his life when he visited us, then who else in the world would want to come to Dunhuang as a guest in the future? Forget it, Qiu Niang, you arrange a team of people to protect him in secret. As for Xue Ju, it is enough to buy a road for Li Jiancheng to buy some money. Don't worry about money, I have a hunch: how much money we spend this time, in the end we can earn back tenfold, it is definitely a transaction that only makes money and does not lose money. After Li Wenyuan read the information sent by the night owl, he also smiled and said to Qiu Niang in front of him.

In these aspects, Qiu Niang will never object to Li Wenyuan's ideas. So after getting the order, he secretly arranged a team of night owls, led by his deputy Wu Niang, who secretly followed Li Jiancheng all the way to protect his safety all the way.