Palace.

When Li Jiancheng came to the palace, Li Yuan was reviewing the folds in the imperial study.

Even if there were two eunuchs next to him who kept fanning their fans, he still felt that it was too hot, and what was even more hateful was that there were many mosquito thieves in the house, and he had only sat down for a long time, and several bags had been bitten on the back of his hand.

Seeing Li Jiancheng coming, Li Yuan was not angry, but he still patiently asked, "Why is the prince here?" ”

The crown prince Li Jiancheng looked aggrieved and said: "Father, the son is here to resign from the position of prince." ”

Hearing this, Li Yuan was stunned, that prince didn't want to be the prince, why did Li Jiancheng resign as the crown prince?

But soon Li Yuan understood that his son was going to resign as the crown prince, he was only afraid that something would happen, and if he was willing to resign as the crown prince, then his father would be in vain.

After coughing dryly, Li Yuan scratched the red envelope on his arm and asked, "What's the matter, why are you saying this?" ”

Li Jiancheng said: "Father, the emperor and the ministers of the court do not regard their sons as princes. ”

"Oh, who doesn't treat you as a prince, how can it be true." Li Yuan is indeed a little angry, the crown prince was appointed by him, and if he doesn't treat Li Jiancheng as the prince, that is, he doesn't treat Li Yuan as the emperor.

"Tell me what the hell is going on."

Li Jiancheng responded: "That's the case, Qin Tian, the righteous son of Yiguo Gong, sold things in the East Market, and the waiter of the East Palace went to sell it, but he didn't sell it, and beat the waiter of the East Palace. ”

Hearing that Qin Shubao's righteous son dared to beat the chamberlain of the East Palace, Li Yuan immediately frowned and said, "These generals are really getting more and more unreasonable. ”

Li Jiancheng hurriedly echoed: "Yes, they dare to beat the servants of the East Palace today, and tomorrow they won't take the prince of Erchen in their eyes, if they turn against Erchen, Erchen can beat them, so they simply give up the position of prince." ”

"Nonsense!" Li Yuan snorted, and then said: "Come, go and put that Qin Tian in prison to set an example for You......"

Li Yuan definitely wants to help Li Jian establish his authority, and he also has the intention of beating Qin Shubao and these generals, the emperor's mental technique, he must not let the generals be too presumptuous.

However, before Li Yuan finished speaking, a eunuch hurriedly ran in: "Holy Lord, His Royal Highness the King of Qin asks to see you." ”

"Xuan!" Li Yuan forcibly suppressed the anger in his heart, but Li Jiancheng's expression moved slightly, and he was faintly worried.

Not long after, Li Shimin walked in from outside.

"Father."

Because of Qin Qiong's Yizi's beating of people, Li Yuan is also a little troublesome now Li Shimin has no way to manage, but he didn't have a seizure at this time, he wanted to see what Li Shimin was doing.

"The people are here, is there anything wrong?"

Li Shimin said: "Father, the son is here to report the good news to his father. ”

"Annunciation?"

"Exactly, the automatic water wheel in charge of Erchen has been tested in the field, and it is really easy to use, as long as it is installed, without manpower, it can continue to pump water to the field for irrigation, and within a few days, the drought in the prefectures and counties near Chang'an can be alleviated."

Hearing that the automatic waterwheel was indeed feasible, Li Yuan's anger just now suddenly dissipated a little, and said: "Okay, good, seeing that the crops are about to be harvested, with this irrigation, the wheat grains must be full, and this year can be regarded as a bumper harvest." ”

Li Shimin hurriedly responded: "What my father said is very true, not only that, but the son also brought something to my father. ”

"Oh, what's that?"

"Automatic water wheel, the son is going to transform his father's imperial study into a rain house, so that his father will be very cool when dealing with government affairs, and he will no longer have to suffer from the heat."

"Is there really a rain house?"

Li Shimin bowed his head, and then ordered people to start working outside, he had already brought an automatic water truck, so he only needed to dig a pit, these were not time-consuming, and there were many people in the palace, probably after a stick of incense, the rain house became.

Open the valve, the rain fell from the roof, and the imperial study quickly became cool, Li Yuan saw that there was really such a thing, and couldn't help but rejoice, then Li Jianwei didn't believe it, but the imperial study was really cool, and he was also a little moved, but it was not easy to open his mouth because of his face, thinking that after going back, let people find an automatic waterwheel, and just do it himself in the East Palace.

"Okay, good thing, the automatic waterwheel not only solves the problem of drought, but also solves the indoor temperature, it's really wonderful, Shimin, who invented this automatic waterwheel, I want to reward him."

Li Shimin was overjoyed and said: "Father, the person who invented the automatic waterwheel is called Qin Tian, and he is the righteous son of Yiguo. ”

"Qin Tian?" Li Yuan couldn't help but be stunned, and then his face was a little ugly, and a pair of eyes looked at Li Shimin first, and then at Li Jiancheng.

He never thought that the person who beat the attendant in the East Palace was Qin Tian, who invented the automatic waterwheel, and it was Qin Tian who benefited all the people.

He finally understood that this was clearly a struggle between his two sons.

He was a little embarrassed.

At this time, Li Jiancheng said: "Father, this Qin Tian beat the chamberlain of the East Palace, even if he invents an automatic waterwheel, he must not be tolerated, otherwise where is the king's law?" ”

Li Shimin was not to be outdone, and said: "Father, the invention of an automatic waterwheel is beneficial to the people, if you don't reward it, how can you believe in the world, and why let the talented people in the world serve the court?" Father, don't chill the hearts of talented people in the world. ”

The crown prince and King Qin didn't want to let go, and at this time, King Qin suddenly asked, "Your Royal Highness the Prince, you said that Qin Tian beat the chamberlain of the East Palace?" ”

Li Jiancheng said: "Yes, I beat the waiter in the East Palace with a blue nose and swollen face." ”

"I don't know why?"

Li Jiancheng faintly noticed that something was wrong, he only said that Qin Tian beat people before, but he didn't say why he beat people, but now Li Shimin asked this, I was afraid that he had ulterior motives.

But he still continued: "My chamberlain in the East Palace wanted to buy flower water from him, but he refused to sell it, and then there was a conflict. ”

"Qin Tian sells flower water, he sells it if he wants to, and if he doesn't want to sell it, he doesn't sell it, how can there be a conflict, it must be your East Palace servant who wants to buy and sell it, then Qin Tian refuses, so he will do it, right?"

Li Jiancheng frowned slightly: "Nonsense." ”

Li Shimin shook his head: "Is it nonsense, His Royal Highness the Crown Prince will go back and ask your chamberlain, His Royal Highness the Crown Prince has always been fair, don't be deceived by his subordinates, at that time, it will not be good for His Royal Highness the Prince's reputation." ”

The two fought-for-tat, Li Yuan listened to it for a while, and he understood it more or less, originally he didn't think to ask about the reason for the beating, thinking that if he hit the waiter in the East Palace, he should be punished, but now the fault is in the waiter in the East Palace, if he also punishes others, it will be a little unfair.

What's more, Qin Tian also invented an automatic water wheel.

However, what made Li Yuan more curious at this time was not these.

"What's that toilet water?"