When a person who takes revenge does not take over overnight and who has a vengeance will show his open-mindedness, everyone's eyes are weird.

His Majesty Li Er even made a 'crack' sound of teeth, and his right hand slap was several times. In the end, it might be because he was considering that the time was wrong, so he just snorted angrily and turned away.

In this way, after the sacrifice, a group of princes and daughters, older ones, found a place to rest by themselves, and younger ones followed their mothers to rest. After a similar rest, there was a celebration, then a dinner, and then a New Year's Eve.

By the time Li Chengqian returned to the "Lanruo Temple", it was already early in the first day of the first day of the third year of Zhenguan.

With the help of the maid, it took a long time to take off the crown clothes on his body and put on his cotton pajamas. Li Chengqian, who had been sleeping completely in a hurry.

The cotton seed removal technology has long been solved under the strong research of the Ministry of Works. All the quilts used in the palace in winter have been replaced with quilts, and even the clothes are basically cotton coats with cotton.

However, because the cotton production of the Tang Dynasty was too low, cotton products were not popularized among the people. Even if Wei Zheng had not strongly stopped it, in order to ensure the supply of the army, cotton would almost be listed as a forbidden product and was prohibited from being used by the people.

However, these have nothing to do with Li Chengqian. As the first person to invent quilts, he would not care about how to use this thing, just like the first person to invent electric lamps would not care about whether people use electric lamps to illuminate or keep warm.

The sun shadow tilted westward, Li Chengqian got up from the kang in a daze, rubbed his hungry stomach, and through the dim window paper, he estimated the time and found that he felt depressed that he seemed to be upside down by sleep.

"Your Highness, are you awake?" asked softly the maid who was serving in the room.

"When is it now?" Li Chengqian rubbed his eyes and yawned a big yawn.

"It's the end of Shin Shin." After the maid answered, she lifted the hot water from the stove in the room. When she was right, she just had some cold water. She served Li Chengqian to clean her face and asked, "Your Highness, do you want to pass on the meal?"

"Tell me, call Wang Chenghu in."

"Here!" The maid agreed and stepped out, leaving Li Chengqian alone in the room to think about how to pass the time.

"Your Highness, are you awake?" Wang Chenghu walked in from outside with a shiny bald head and covered in cold air.

Li Chengqian shivered by the cold wind, shook, and asked, "I wake up, I know where the 'firecrackers' are placed? It's the new batch."

Wang Chenghu recalled and said, "It should be that the Sesocana Department exists. I remember that I sent it there."

"Half of it is raised, let's set it tonight." Li Chengqian's eyes were shining. It was in the control scope of firecrackers in later generations. Now that it is in the Tang Dynasty, I believe my urban management would not have traveled through time and space to catch myself because of this little thing.

After Wang Chenghu left, Li Chengqian had used the meal. It was already completely dark and it was the best time to set off firecrackers.

After waiting for a while, when he was a little impatient, Wang Chenghu brought a large cart full of bamboo tubes more than three feet long and the size of a bowl.

Basically, these things are not firecrackers, and Li Chengqian did not intend to use them as firecrackers when he made them.

A bamboo tube that was opened was sealed with something to put a small amount of gunpowder bag inside. On the upper layer of the gunpowder bag, another gunpowder bag weighing about one pound is placed. When the exposed leads are ignited, the first layer of gunpowder bag will explode first. Under the binding force of the bamboo tube, the impact force that has nowhere to pour out will push the medicine bag above into the sky.

What is this kind of thing? If you turn its opening to the sky, most people will think of fireworks. After all, fireworks were put in this way in the 1990s.

(The fireworks at that time were a ball of a bowl. After it was boiled, it was put into a cardboard tube that had been wrapped in many circles, and then... the fireworks went to heaven)

But what if it is flat? A simple rocket launcher? Do you tie a lot of roots together? Do you have multiple rocket launchers? In short, no matter what it looks like, when it was first made, Li Chengqian did not regard it as a firecracker in the normal sense.

But now Li Chengqian is too bored. After thinking about it, this is the only thing that is quite interesting, so...

"Your Highness, you have done it." After the preparations were done, Wang Chenghu returned to Li Chengqian with an excited expression.

When this guy just made the first batch of "firecrackers", he had played with it several times. The huge sound and powerful destructive power almost instantly made him a loyal supporter of "firecrackers".

However, because this thing was too troublesome at that time, Li Chengqian quickly stopped him from continuing to play, and Lao Wang was always worried about this.

Now the opportunity has come. His Royal Highness, the Grand Prince, has proposed such a large number at one time, and this time it can finally be enjoyed.

"If you have done it, go and put it in. I'll teach you how to put it in as difficult as it is, will I teach you how to put it?"

Out of showing off, Li Chengqian despised the genuine firecrackers that burned bamboo tubes and made a burst sound, so he wanted to make a big one to completely calm the guys who set off firecrackers and let them know what real firecrackers are.

When Li Chengqian traveled through time, the saying "If you don't commit suicide, you won't die", so when Li Er and Changsun, wearing pajamas and fur, appeared in front of him, they were happily admiring their masterpieces.

"Nizi, what are you doing!" Seeing Li Chengqian igniting a bamboo tube lead, and then two explosions, one small and one large, Li Er finally couldn't help but his anger and jumped and roared.

"Uh~, Father, Queen Mother, why are you here?" Li Chengqian blinked innocently, confusing the old man for being so arrogant.

"Why can't I come? I'll kill you, a foul boy." Li Er was already angry and said something. No matter how cold he was, he shook his shoulders and fell to the ground. He rushed to Li Chengqian step by step, grabbed him and pressed him on his legs, and began to slap him according to his butt, turning a deaf ear to Li Chengqian's screams like killing pigs.

"Bang" slap: "I beat you to death and let you steal my things."

"Bang" another slap: "Why are we here? The thunder in winter sounds, do you know how big the mess it causes?"

"Bang" slap again: "I'm asking you to pretend to be innocent."

"Papapapapapapa" a series of slaps on the butt: "I'm going to let you: I'm going to drink today, and I'm going to be sad tomorrow."
Chapter completed!