Tang Dynasty, I can lead troops through ancient and modern times

The saltpeter and sulfur needed for gunpowder were both available in the palace, having been left behind by alchemists when they were making elixirs.

Although Li Shimin didn't know what Li Chengqian wanted these for, he still ordered people to find them.

Soon, three pounds of sulfur and five pounds of saltpeter were delivered. Charcoal was even simpler, as it was already available in the kitchen.

"Crush them all..."

Soon, the three basic materials were crushed into powder by the eunuchs.

Li Chengqian mixed the three ingredients together in the ratio of 75% saltpeter, 10% sulfur and 15% charcoal.

Li Shimin had read the relevant content last night and just stood aside and watched quietly.

After finishing his work, Li Chengqian ordered the maid: "Go wake up the Crown Princess and ask her to comfort Xiang'er and Ju'er so that they won't be frightened."

The palace maid went down to pass on the message, while Li Chengqian put some black gunpowder into a bamboo tube, tamped it, and blocked it with mud.

Wrap some gunpowder in paper and roll it into a strip to use as a fuse and insert it.

Then he handed it to a eunuch.

"Hey, you, look carefully, light this exposed area with fire, and then quickly throw it onto the open ground. Do you understand?"

The eunuch nodded in confusion.

Li Chengqian quickly pulled Li Shimin and hid far away.

"What's going on? Is it necessary to be so nervous?" Li Shimin asked puzzledly.

Li Chengqian did not answer, but looked at the eunuch standing in the distance: "Light the fire."

Now, the eunuch finally understood that this thing was dangerous!

But the emperor and the prince were watching, and he could not disobey their orders. He could only muster up the courage to light the fuse with a fire stick, and then quickly threw it onto the open ground as the prince instructed.

boom! ! !

The eunuch was so frightened that he sat down on the ground, and Li Shimin was also shaking all over, with a look of shock on his face! !

"Oh my god, how come there are still artillery shells in the Tang Dynasty!!"

Cheng Yaojin's voice came from outside.

Then Li Jing, Pei Xingjian and others filed in and looked at the small hole on the ground that was blown up! !

"Gunpowder!!" Pei Xingjian reacted immediately.

Because what he recited included information about gunpowder.

As for Li Jing, Cheng Yaojin, Hou Junji and others who have experienced the baptism of modern warfare, they understand the existence of gunpowder even better.

Everyone gathered around and looked at the small hole on the ground.

Li Shimin stared blankly, muttering, "I didn't expect that the pills I take every day actually contain explosive ingredients!!"

Li Chengqian also came over to check the power of the explosion.

"That's not good enough, sugar. It seems someone brought back sugar yesterday, right? Go get it."

A guard quickly ran to get the sugar, because it was he who bought five kilograms of sugar on a whim yesterday.

At this time, Li Shimin also came over. After everyone greeted each other, Li Shimin squatted down and checked the small pit.

"Just now, the bamboo tube as thick as an arm was able to blast a small hole in the bluestone ground. What if the dosage is increased?"

At this time, white sugar was brought over.

Li Chengqian picked up a little bit and put it into his mouth. It was good and very pure.

Then mix black powder and white sugar in a ratio of 7:3.

He made another firecracker and threw it to the eunuch because he had experience.

Li Chengqian noticed his nervousness and said, "Go ahead. I'll give you a hundred strings of cash later."

After hearing this, the eunuch smiled happily and quickly prepared to set off firecrackers again.

A group of people quickly hid far away. At this time, Su also came out with two children.

Li Shimin quickly helped Li Xiang cover his ears, while Li Chengqian was responsible for Li Jue.

"Let's start!" Li Chengqian ordered.

The eunuch nodded, blew up the fire stick in his hand, lit it, and threw it. His movements were very skillful.

Li Chengqian even thought that he could be trained to be a grenadier.

boom! ! !

This time the explosion was even more powerful, the entire East Palace was shaking, and even a few tiles fell off! !

Everyone gathered around quickly, and a piece of the bluestone slab on the ground was actually blown away, and the surrounding bluestone slabs were cracked.

"This power..."

Li Shimin was shocked.

Li Jing, Cheng Yaojin and others were also very shocked. They really didn't expect that the Tang Dynasty could actually produce such powerful firearms.

Pei Xingjian fell into deep thought. With such a powerful weapon in hand, how could the Five Surnames and Seven Families resist? !

It seems that I made the right choice to join the royal family!

At this time, Li Chengqian looked over and said, "Pei Xingjian, you also know the formula of gunpowder, so you should understand what I want to say."

Pei Xingjian knelt down quickly and said, "I understand. Your Majesty, please rest assured that I will not reveal a single detail even if I die."

But Li Shimin just looked at Pei Xingjian without saying anything.

Li Chengqian knew that he was going to kill him, so he said, "I still trust Pei Xingjian, you don't have to do this."

Li Shimin said, "You are the superior, you can be trusted. Don't you know that it is better to take precautions?"

Pei Xingjian knelt there trembling, not daring to say anything.

He can only place his hope on His Royal Highness the Crown Prince now, but...

Li Chengqian nodded: "Indeed, only the dead can keep secrets, what do you think, Pei Xingjian?"

Pei Xingjian raised his head and looked at Li Chengqian in astonishment: "I understand, I..."

"Get up. From now on, there will be no Hedong Pei Xingjian. There will only be Donggong Pei Xingjian. Write a letter now and have your Hedong Pei clan declare to the public that they are on the side of the royal family. Do you understand what I mean?"

Pei Xingjian was stunned and immediately burst into tears.

"I understand. I will stay in the East Palace for the next few days to make his intentions clear."

Li Shimin added: "Bring your son to the Eastern Palace as a companion to the emperor's grandson."

"Yes, I will have someone arrange it right away..."

Li Shimin and Li Chengqian, one played the good guy and the other played the bad guy, completely defeated Pei Xingjian.

"Old Hou, the production of gunpowder is now in your hands. Find a site to build a workshop right now. I will give you the relevant information on the refining of saltpeter and sulfur later. As for the guarding of the workshop..."

"Arrange the Black Armor Army to move in." Li Shimin made the decision directly.

Li Chengqian had no objection and looked at Cheng Yaojin again: "Old Cheng, you also go find a site and experiment with the new steelmaking method with Jingde. You can ask His Majesty for manual labor and craftsmen. I only have one request, and it must be kept strictly confidential."

Cheng Yaojin scratched his head and said, "Your Highness, why don't you find someone else? I am a rough man and cannot handle these delicate tasks."

Li Shimin raised his beard and said, "Go if I tell you to. Why are you talking so much nonsense? Don't forget the guards at the steelmaking site."

Cheng Yaojin grinned, and together with Yuchi Gong, he bowed and took over the task.

"Pei Xingjian, the research on glass, sugar making, ice making, soap, and wine making will all be handed over to you."

Pei Xingjian was stunned again, and finally bowed solemnly: "I obey your command!"

Li Shimin looked at Li Chengqian's arrangements with satisfaction.

After a beating, he was rewarded with a sweet treat. Li Chengqian had already begun to understand how the emperor should employ people.