Li Chengqian calmly stepped forward and saluted: "See my father!" ”

As soon as Li Shimin saw Li Chengqian, he smiled and said, "Hurry up and sit beside me!" ”

From Li Shimin's voice, Li Chengqian could hear that he was a little weak now, maybe it was his so-called qi disease that affected him.

At this time, he had a natural affinity and dependence on Li Chengqian.

Li Chengqian straightened up when he heard this, and said with a smile: "Congratulations to my father, congratulations to my father!" ”

Li Shimin was stunned when he heard this, and said with a faint smile: "Oh, where did I come from?"

Li Chengqian said with a smile as he walked forward: "Isn't it a happy event that the son has a divine object that can relieve the suffering of his father's summer heat?"

Li Shimin laughed heartily and said, "What kind of good thing to show me?" Li Shimin was very pleased with Li Chengqian's filial piety.

As soon as Li Chengqian approached Li Shimin, he found that Li Shimin's face was already swollen, and his eyes were dark, obviously because he didn't sleep well last night.

Sitting next to Li Shimin, it was obvious that his breath was short, and he was obviously enduring the discomfort of his body at this time.

Because he turned around and followed the old ghost who followed, he said, "Let them carry them in?"

The old ghost hurriedly lowered his head and walked out of the main hall with small steps, and after a while, he came in with a few people carrying things.

Li Shimin and the ministers all looked over curiously, only to see a few guards carrying in a large vat, then someone carrying an empty box with no bottom, someone holding a strange three-bladed fan, and finally a few people carrying buckets.

Seeing that everything was brought in, Li Chengqian stood up and walked to the middle of the hall, instructed the guards to pour water into the tank, and then fixed the fan blades in the box, and shook the handle from the outside, and the fan inside turned quickly.

After the box was installed, Li Chengqian stretched out his head to see that the water in the water tank had begun to freeze, so he ordered someone to buckle the box on the water tank and order someone to rotate the handle behind it.

Those who were close immediately felt a cool breeze blowing out of the box, and when they looked closely, it turned out that the box was facing the side of the main hall, and only the lower half was sealed with a wooden plank, and a veil of more than two feet high was left on it, and the wind blew out of it.

Li Shimin also slowly walked off the throne and stood beside him, looking at this strange thing curiously, seeing that a cool breeze was blowing out, he felt a little comfortable, closed his eyes and breathed a long sigh of relief.

Yang Shidao saw it and said with a smile: "His Royal Highness the Crown Prince is really benevolent and filial, knowing that His Majesty has a qi disease and is not tolerant of heat, so he specially asked people to make this thing to relieve His Majesty's bitter summer." ”

Li Shimin was very helpful when he heard this, opened his eyes, looked at the wooden box in front of him and Li Chengqian and said with a smile: "Chengqian has a heart, I will take this box with me when I go to Jiucheng Palace." ”

Li Chengqian looked at Li Shimin and said with a smile: "With this air-conditioning box, the father doesn't have to go to Jiucheng Palace." ”

Li Shimin looked at the air-conditioning box that Li Chengqian said and then looked at Li Chengqian, and finally said with a wry smile: "Although this thing can blow a cool breeze, it is just a drop in the bucket for the scorching heat......

Li Chengqian smiled slightly when he heard this: "Father, look at it!" As he spoke, he gave a look to the guards standing next to the air-conditioned box and ordered them to move the wooden box.

Li Shimin followed Li Chengqian's words and looked into the jar, only to see that the jar turned out to be a jar of solid ice.

Li Shimin couldn't help but gasp, looked at Li Chengqian in shock, and said, "Chengqian, what kind of spell are you playing here?"

Li Chengqian smiled and said: "What kind of spell is this, Erchen just put some saltpeter in the water, and the water meets saltpeter and freezes, and these cold airs are blown out with the rotation of the wind blades in the wooden box, and then the whole hall becomes cool." ”

"Oh!" Li Shimin nodded when he heard this, then looked at Li Chengqian and asked, "Why does water freeze when it meets saltpeter?"

……

Li Chengqian's brain blocked the machine, and he wanted to say loudly: How do I know?

However, he glanced at Li Shimin and a few curious ministers, so he had to flicker and say: "Heaven and earth all things are mutually reinforcing, and water meets saltpeter and freezes, and this is also the truth......

Li Shimin reluctantly frowned slightly after listening to his explanation, and asked again: "What does Cheng Qian mean is that with these air-conditioned boxes, I don't have to go to Jiucheng Palace?"

Li Chengqian could hear that Li Shimin's question was full of suspicion, and said calmly: "Father, the whole Guanzhong has been very hot these days, and my father has not slept well for a few days. ”

Although these words were vague, everyone in the hall understood that Li Chengqian was worried that Li Shimin was sick on the road, so he couldn't help but nod and secretly said that His Royal Highness the Crown Prince is really filial.

Li Shimin also had a difficulty in his heart, he also knew that the road was not easy to walk, but the Taiji Palace was too stuffy here, and the palace had stored a lot of ice, but although the ice cubes naturally melted to absorb heat, there was also moisture emitted, resulting in excessive humidity in the house, which was too sinful for a person like him, so he had to go to Jiucheng Palace every summer to spend the summer.

When Li Shimin was hesitating, he listened to Li Chengqian unhurriedly answered: "Anyway, my father and emperor will not go out of the palace today, and the sons have already asked people to prepare dozens of wooden boxes to find some water tanks filled with saltpeter and put them in this hall, so that they can mix water to make ice, and my father will try to see if he can cool off a little?"

Seeing that Li Chengqian was speaking earnestly, Li Shimin couldn't bear to brush his mind on such a trivial matter, and nodded silently to agree to Li Chengqian's proposal.

Li Chengqian said to the old ghost: "Order someone to close the doors and windows in this hall, and then place the water tanks around the hall and let the cold wind blow inside." ”

The old ghost bowed his head in response, hurriedly turned around, and walked out with small steps.

Li Chengqian turned around and helped Li Shimin walk back to the throne, and after Li Shimin sat down on the throne, he looked at Li Chengqian's words to the inner servants beside him: "Spread my will, and the inner servants will stop all preparations for leaving the palace first." ”

Li Shimin's place did not leave the palace today because he had ordered the Ministry of Internal Affairs to prepare for a few days before he could leave the palace, and it stands to reason that he should have enjoyed Li Chengqian's artificial air conditioning first, and then let the people who were preparing stop if he thought it was good.

But Li Shimin sees that Li Chengqian is indeed a filial piety, how can he show that he does not trust Li Chengqian in these small things?

And even if Li Chengqian's experiment failed in the end, Li Chengqian and the courtiers of the East Palace would naturally make up for his mistakes and send him to the Jiucheng Palace as quickly as possible.

"Father, rest assured, this air-conditioned box will definitely be able to lower the temperature in this hall!"

Li Chengqian saw that Li Shimin really believed in himself, and he was still a little moved in his heart, after all, his purpose of offering artificial air conditioning this time was not pure.

Li Shimin looked back at Li Chengqian and nodded, and then began to discuss state affairs with the minister, many things Li Chengqian had already conveyed his views through several scholars of the Chongjiao Palace, so he did not speak again and sat next to him and listened quietly.

The old ghost led people to quietly arrange one air-conditioning box after another, and began to cool the hall, the sun gradually rose, but the boring high temperature did not come to the Liangyi Palace.

On the contrary, as there were more and more air-conditioning boxes in the Liangyi Palace, the temperature was getting lower and lower, and Li Shimin felt the coolness that he had not seen for a long time, and his spirit was much better than in the morning.

"Your Majesty Xue Yantuo's envoy Tuli will enter Chang'an in two days, and the Ministry of Rites plans to summon him in the Liangyi Palace." The Ministry of Rites, the book of Jiangxia, the king of Jiangxia, enlightened the way.

The minister in the palace heard that Gu was quiet, and Tu Lishe was the nephew of Xue Yantuo's Zhenzhu Khan, and this time the envoy to the Tang Dynasty was to marry the princess of the Tang Dynasty.

Li Shimin also looked at Li Daozong incredulously waiting for his next words, but listened to Li Daozong for a while: "All the generals in the DPRK and China are against this marriage, so the Ministry of Rites thinks it is not appropriate to be too public." ”

"Humph!" Li Shimin snorted angrily to express his dissatisfaction.

Seeing this, Li Chengqian hurriedly got up and walked off the throne, saluted the people of the world, and said: "This matter is all the fault of the sons, and you shouldn't make any poems to disturb the state affairs, please punish your father." ”

Li Shimin heard the words and saw that Li Chengqian did not speak, and then went to look at Li Daozong, and his attitude was very clear that this pot could not be carried by his son.

Li Daozong didn't expect Li Chengqian to suddenly turn against him, and he couldn't advance or retreat, but when he was about to speak, he saw Hou Jun gather up and said: "Your Majesty, Xue Yantuo is just a small department, although the Tang Dynasty is friendly with him, it should not be too grand, so that he will be arrogant." ”

Li Shimin looked at Hou Junji for a long time and said, "I think again!" ”

Li Chengqian saw that Li Shimin was a little moved, so he hurriedly bowed down again and saluted: "My father's relationship this time is different from the past, and it should be grandly received, and it is best for my father and emperor to come to Chengtianmen by himself and report this matter to all the people in the world." ”

Li Shimin didn't speak after hearing this, but Hou Junji spoke first, and bowed his hand to Li Chengqian slightly: "Your Royal Highness, may I ask His Royal Highness the Prince, how is this friendship different from the past?"

Li Chengqian glanced at him when he heard this, and said lightly: "In the past, whether it was the previous dynasty or the Tang Dynasty, it was often when China was unable to conquer the Fanbang barbarian tribe, so when he made peace, he often accompanied a large amount of wealth to bribe the Fanbang.

And this time, the Tang Dynasty and Xue Yantuo made peace when the Tang Dynasty could destroy Xue Yantuo with a snap of his fingers, and it was Xue Yantuo Khan who admired my Chinese literary style and was willing to pay money to marry a woman.

Naturally, this relationship between China and China should be edicted to the subjects of the world, all vassal states and counties, so as to show the mind of my Tang Dynasty Emperor. ”

"Good! Just handle it according to the proposal of the cadres! Li Shimin listened to Li Chengqian's words, as if he was ten years younger all of a sudden.

Li Shimin has always flaunted himself with martial arts, and after reading Li Chengqian's poems, he was not untouched by the fact that he was just a matter of national affairs.

(End of chapter)