"Hehe, that's not it!" Cheng Yaojin smiled and exposed his back teeth, loosening the horse's hooves. He didn't care how far the horse was scared by him, and said carelessly: "This time it's time for my old Cheng family to get rich!"

"Get rich? Dad, what's the money?" Cheng Chumo asked in confusion.

"Go and go, every child knows what he knows, get out and play." Lao Cheng made a feudal paternal kick, silently breaking Cheng Chu away.

As a veteran on the battlefield of hundreds of battles, Cheng Yaojin and Qin Erge immediately understood the use of the iron piece after seeing the horseshoe nailed to the horseshoe, and Cheng Chumo didn't need to explain it again.

As for the stirrup, that thing is useless to kill the body like Lao Cheng, so he doesn't care.

...

As the saying goes, it is better to act than to move. Just thinking about it is Lao Cheng’s unique style.

After discovering the function of the four iron sheets, Lao Cheng ignored the second brother of Qin in his family, and didn't even ask about Cheng Chumo's buying wine. He rode the horse with the horses nailed to the horse and left the house and headed straight to the imperial city.

The excited look was gloating no matter how you looked.

...

That night, in the bedroom, Empress Changsun looked at His Majesty Li Er who was worried, laughing and sighing, and asked carefully: "Your Majesty, what's wrong with you?"

"Oh..., I'm so embarrassed this time!" I don't know how many times Li Shimin sighed this night.

Empress Changsun's face changed a little: "What happened? Can you tell me?"

"It's actually nothing, I wonder if Guanyin Bi still remembers those four iron pieces?"

"Your Majesty is the four that Father sent you back?"

Of course, Empress Changsun remembered the four three-flat and four-round iron pieces. After all, she had been thinking about the four iron pieces for a long time.

"Today I finally know what it is for." Li Shimin smiled bitterly again.

"What are you doing?" Empress Changsun was also very curious.

"That thing is actually called a horseshoe, also called a horseshoe. Its real purpose is to nail it to the horseshoe to prevent the horseshoe from cracking while running."

"What? Use it, it is used on horse's hooves?" Queen Changsun was also a little surprised after hearing the effects of the four iron sheets.

But soon a strange expression appeared on his pretty face, looking at Li Shimin's "hugging" look, and he looked at him with a smile.

"If you want to laugh, just laugh. I am mentally prepared. I hate this. It's a pity that Cheng Yaojin told me. With this old man's big mouth, I'm afraid that it will spread all over Chang'an City tomorrow!" Li Shimin's expression was complicated, with his gratitude, annoyance, and excitement.

I said that it was because at the beginning, he almost put the four iron pieces on his body. If that were the case, he would have thrown his face outside Yazhou.

He said he was upset, because the old man was too mean to cheat his son. He didn't care about writing the word "horsehound" at the beginning, and he could understand what this thing was for, but the old man insisted on not writing it (of course, this was Li Er misunderstood by Li Yuan. In fact, Li Yuan didn't know that Li Muyun offered him horseshoes.).

As for the final excitement, there is no need to say more. In the afternoon, I watched Cheng Yaojin, the old man galloping on the gravel road in the imperial garden. Although countless strange flowers and plants were shattered, Li Shimin no longer cared about those, because he knew that the Tang cavalry would definitely be able to circulate this continent in the near future and would be unstoppable.

But..., but even though if, it's still so embarrassing! Thinking of Cheng Yaojin's broken mouth, Li Er was depressed again.

...

In a blink of an eye, two more days later, the general manager has begun to do his best to build horses and change the entire army.

At this time, Li Er received another gift from Shanyin County.

However, in order to be on the safe side, Li Er became scrupulous and looked at Chen Tu who placed a large bundle of bamboo tubes on the ground and asked, "What are the names of these things that Li Muyun offered?"

"Go back to Your Majesty, this thing is called Erqiu." The third child of the Chen family replied.

Hearing this name, Li Shimin began to give no hope for his newly appointed Xiaoyaohou. It turned out that he was just an ignorant and ignorant guy, and his name was a useless person.

"What are these two and two kicks?" Empress Changsun, who was playing with Li Shimin in the imperial garden, took over and asked.

"Returning to the Queen, Xiaoyaohou said that this is a kind of firework that needs to be set off in places with few people, and the viewer must stand a hundred steps away."

"Well, that kid is a little conscientious this time, and he knows to explain in advance." Li Er had already come to his senses and nodded.

"Your Majesty, Empress, Xiaoyao Hou also said that this thing should be burned at night, and the effect is not very good during the day. Also, he said that if the Empress likes it, he will offer some more when the Empress celebrates her birthday."

After hearing Chen Tu's retelling, His Majesty Li Er snorted: "If you have nothing to do, you are either a traitor or a thief. Tell me, what else does he have to ask for?"

"Your Majesty's clarity, Xiaoyao Hou said that if Your Majesty thinks this thing is good, I hope you can reward some food. He said that the tenants under his rule will soon be unable to survive." Chen Tu conveyed Li Muyun's request in a scattered manner.

However, in his opinion, this request did not seem too much, and Li Shimin should be able to agree.

Sure enough, the facts proved that he was right. Li Shimin said lightly after nodding, "This is no problem. If the queen really likes this thing, it wouldn't be a big deal to reward him with some food."

"Here!" Chen Tu agreed. After waiting for a while, he saw that Li Er and Changsun had nothing to do to give him, so he stepped down.

Li Er also felt that since Li Muyun emphasized that this thing would be interesting to watch at night, he ordered people to take it down and put it in the Wude Hall not far from Liangyi Hall.

I think that Wude Hall was actually the residence of Li Yuanji at the beginning, but later it became empty after the Xuanwu Gate Incident. After a long time, Li Er felt that it was not a big deal to be empty, so he temporarily regarded it as his own warehouse.

But Li Er didn't know that it was precisely because of his decision that it led to a disaster that shouldn't have happened.

...

That night, in the Wude Hall.

A raccoon cat skillfully climbed up the candlestick at a corner of the hall, staring at a gray mouse on the ground looking around.

In a moment, just as the mouse turned around and looked at the other side, the raccoon jumped off the candlestick...
Chapter completed!