In the palace, Li Shimin looked at the fine white salt in the iron pot, tasted it a little, and after a while, his eyes suddenly lit up, and then he said with a smile, "Okay, very good, Qin Yunfei, I really read it right." After a pause, Li Shimin continued.

"Copy this method and send it to the major salt mines as soon as possible, and tell them that they should purify the salt as soon as possible, and they must not slack off, otherwise, they will be severely punished."

"Yes, Your Majesty." Gonggong Yang bowed down with a smile and said, and after speaking, he hurriedly left with the prescription written by Qin Yu.

It is not for nothing that Yang Gonggong is so happy, originally this matter should have been handed over to officials to do, but Li Shimin was happy and handed over this matter to Yang Gonggong to do, he was just a eunuch, but he could do what officials could do, how could he not be happy.

Qingfeng Ju, after Qin Yu sent the guests away, he exhaled a long breath, as for the matter of the eldest grandson Chong and others helping Qin Yu with the dowry, it will take a few days, first, it takes time to prepare, the dowry is related to the face of the two families, Qin Yu doesn't want to be sloppy, and second, Qin Yu still wants to discuss this matter with Qin Qiong.

Although it is a concubine, Qin Yu can make his own decisions, but when it comes to the Qinghe Cui family and the Fanyang Lu family, Qin Yu feels that it is better to communicate with Qin Qiong.

When night fell, Qin Yu hugged Cheng Lingyun, who had a happy face, and whispered, Xiaoyu came in and said, "Master, the cement is made." ”。

Qin Yu laughed when he heard this, "Okay, very good." Cheng Lingyun breathed a sigh of relief when she heard this, who told Li Shimin to give Qin Yu seven days to make cement, and it was finally a matter of heart to do it.

"Madam, do you want to go and see it together?" Qin Yu got up and asked with a smile.

"Okay, the concubine also wants to see what this cement looks like." Cheng Lingyun said with a smile.

"Let's go." After Qin Yu finished speaking, he hugged Cheng Lingyun and walked outside, saying that Qin Yu's actions were really the first in Datang, and it was not like this in private. But basically it won't be seen by the servants, but Qin Yu doesn't care about this, and gradually Cheng Lingyun is also used to this, and even feels that it is very sweet.

When he came to the front yard, Goudan hurriedly bowed down and said, "I've seen the master, I've seen the lady." ”。

Qin Yu nodded, then looked at the pot of gray powdery things brought by the dog, and after looking at it for a while, he reached out and stirred it in the porcelain basin. Then he looked at Xiao Yu and commanded, "Bring a pot of water." ”。

"Yes, sir." Xiao Yu bowed in response.

Cheng Lingyun couldn't see what was good about this gray powder after watching it for a long time, but Cheng Lingyun knew one thing. I can't pretend to understand, so Cheng Lingyun didn't open her mouth to express her opinion.

It didn't take long. Xiaoyu came over with a kettle. After Qin Yu took it, he poured some water into the porcelain basin, looked at it for a while, and then instructed the dog, "Find a stick and stir it up." ”。

"Yes. Master. Goudan bowed down and answered, hurriedly went to find the stick, and soon ran back, stirring up the cement according to Qin Yu's request.

Qin Yu looked at it for a while. Then he nodded with satisfaction, smiled and said, "Okay, now get this to the ground and lay it flat." ”。

"Yes, sir." Goudan was slightly stunned, but he didn't understand what Qin Yu meant, but Qin Yu's order, Goudan didn't dare to disobey, and hurriedly bowed down to answer, and after speaking, he poured the cement made in the porcelain basin to the ground, Qin Yu asked to be smoothed, and Goudan couldn't find the guy for a while, so he had to get it by hand.

It didn't take long for the cement on the ground to be leveled by the dog's hands, and then he said, "Master, it's flat." ”。

Qin Yu looked at it for a while, then nodded, and said, "Tell them, don't step on it, in half an hour, I will check it." ”。

"Yes, sir." Hearing this, the dog quickly bowed and answered.

"Madam, go back, eat first, and when you have a good meal, it's almost over." Qin Yu looked at Cheng Lingyun with a smile on his face and said.

Cheng Lingyun nodded, and then walked towards the back house with Qin Yu, as soon as she arrived at the back house, Cheng Lingyun still couldn't hold back, and asked, "Husband, is this cement successful or not?" ”。

"It seems to be okay at the moment, but whether it succeeds or not will have to wait for them to freeze." Qin Yu said with a smile.

Cheng Lingyun nodded half-understandingly, and not long after, dinner was served, and after Qin Yu and Cheng Lingyun finished eating, they rested for a while, and then returned to the front yard.

When Qin Yu came to the front yard, he saw Goudan standing next to the cement like a benchmark at a glance, he was slightly stunned, then he smiled and said, "Okay, let's go eat." ”。

"Sir, I'm not hungry." Dogan bowed down and said respectfully.

Qin Yu smiled slightly, then came to bend down and touched the cement, and after feeling the hardness of the cement, he nodded with satisfaction, "Okay, not bad." ”。

When Goudan heard this, he immediately breathed a sigh of relief, obviously Goudan had been worried that this cement had not been successfully made, but now he was relieved.

"Dog, how much cement has been made?" The cement was successfully made, but Qin Yu remembered a crucial question and hurriedly asked.

"Master, the small one is about thirty stones." Dogan hurriedly bowed in response.

When Qin Yu heard this, his brows suddenly furrowed, pondered for a moment, and then said, "Tell the Kunlun slaves tomorrow to build ten more cement kilns, start work with all their might, and make cement." ”。

"Yes, sir." Goudan was startled when he saw Qin Yu frowning, and after listening to Qin Yu's words, Goudan suddenly breathed a sigh of relief and hurriedly bowed in response.

Qin Yu nodded, and then said, "Okay, let's go eat." After speaking, he walked towards the back house, the dog touched the purring belly, smiled innocently, bowed to Qin Yu's back and said, "Yes, master." ”。

In the back house, Cheng Lingyun saw Qin Yu coming back, her face was full of smiles, and then she asked, "Husband, did you succeed?" ”。

Qin Yu smiled and nodded, "Well, it was successful." ”。

"Whew." Cheng Lingyun breathed a sigh of relief when she heard this, there was no way, who called it Li Shimin who wanted this thing, and gave a seven-day limit.

Qin Yu was about to chat with Cheng Lingyun, Cheng Lingyun suddenly remembered something, glanced at Qin Yu hesitantly, and then asked, "Husband, why hasn't the concubine's stomach moved yet?" ”。

Qin Yu was stunned when he heard this, and the corners of his mouth twitched unnaturally, but it was Qin Yu who had taken some measures since he got married, avoiding dangerous periods and the like, Cheng Lingyun's stomach naturally could not move, but where was Qin Yu willing to say this.

Of course, what Cheng Lingyun was worried about, Qin Yu didn't understand, it was nothing more than wanting to give Qin Yu a boy and a girl before Princess Changle.

Qin Yu laughed a few times, and then said, "Don't worry, you're still young, it's not too late in a few years." ”。

"Husband." Cheng Lingyun shouted a little disagreeingly, Qin Yu smiled, then picked up Cheng Lingyun and kissed her, "I'm not in a hurry for my husband, but my wife is in a hurry." ”。

"Husband, can the concubine not be in a hurry, it's been so long." Cheng Lingyun said faintly, and after speaking, he hugged Qin Yu's neck and shouted softly, "Husband." ”。

Qin Yu didn't understand what Cheng Lingyun meant, so he quickly calculated, then nodded and smiled, "Okay." ”。

The next day, after Qin Yu got up, he was about to go to the ironmaking workshop to have a look, but Xiao Yu came to say, "Master, a young man said that he came to report. ”。

Qin Yu was slightly stunned, then remembered that the gunpowder boy came yesterday, smiled slightly, and then said, "Okay, ask him to come to the study to see me." ”。

"Yes, sir." Xiao Yu bowed in response, and then hurriedly left, saying that since Qin Yu came out for Xiao Yu Xiaolan, Xiao Yu Xiaolan's status seems to have improved a lot, at least the maids and servants of Qingfeng Ju have more respect for the two of them, and they chase after Xiao Tao, but unfortunately Qin Yu doesn't know this.

Not long after, the gunpowder boy followed Xiao Yu to the study, and when he saw Qin Yu, the young man hurriedly bowed down and said, "I've seen Little Grandpa Qin." ”。

Qin Yu nodded, and then asked, "What's your name?" ”。

"Back to the little grandfather of Qin, the little one is called Huowa, because the little mother was born on the edge of the fire, so it has this name." Huowa heard Qin Yu's inquiry, and hurriedly bowed down and said.

"Fire baby? Well, now the lord will give you one thing, saltpeter, charcoal, sulfur, these three things, you try them with different ratios every time, and then record the effect. Qin Yu was slightly stunned, and then spoke.

Huowa was a little confused when she heard this, and she didn't know what Qin Yu meant by the ratio, so she hesitated for a moment, then bowed down and asked, "Little grandfather, what is this ratio?" ”。

Qin Yu smiled slightly, and then said, "The ratio is how much each thing is put in, to put it simply, it is saltpeter sulfur charcoal, how much is put in each specific one." ”。

Huowa suddenly realized, and then bowed down and responded, "Little grandfather, the little one understands." ”。

Qin Yu smiled and nodded, and then opened his mouth and instructed, "This thing is a little dangerous, you must pay attention to yourself, don't hurt yourself, after every attempt, make a record, after all the records are made, what will be the effect of trying the size of charcoal particles." ”。

"Yes, little grandfather, the little one knows, this burns quickly, and the little one will pay attention." Huowa bowed with some emotion and spoke.

It is said that Huowa recognizes words because of Qin Yu's three-character scripture and thousand-character text, and he is extremely respectful to Qin Yu, and now that Qin Yu cares, Huowa has decided in his heart that he must study this gunpowder well.

Qin Yu smiled, and then said to the fire baby, "Come here, sign the letter, and then look for the dog leftover, oh, by the way, it's the kid who guards the door, ask him to take you to find some people to collect these things, if you can buy them, go buy them directly, as for the place of the test, it's in the mountains for the time being, it's best to find a quiet place, don't be disturbed, well, I'll equip you with a pair of security guards to protect you." ”。

"Thank you, thank you, little grandpa." Huowa bowed down excitedly, then came to the side of the desk, picked up the brush and signed his name directly, and then pressed the handprint, the contract didn't even look at it, Qin Yu was slightly stunned, then patted Huowa's shoulder, and said, "Do a good job." ”。

"Yes, little grandfather." Huowa bowed down excitedly. (To be continued......)

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