At the gate of the Protector.

Qin Huaidao never expected that Princess Yuzhang was coming. She didn't take her own carriage. Obviously she didn't want to be discovered, so she quickly signaled to take the side door and went straight into the backyard.

This was the first time for Yuzhang to come to the backyard of the Protector's Mansion. After getting off the carriage, he looked around curiously. The courtyard was covered with flowers, which reflected an intoxicating luster in the morning glow. Two light yellow butterflies were flying on them. He couldn't help but look at the pale color on his body.

Wearing a yellow skirt, her face turned red inexplicably.

On both sides of the courtyard are wing rooms, with vermilion columns, gray tiles and white walls. The red lanterns hanging on the wind and rain corridor are swaying in the wind. To the north is the main courtyard, which must be Qin Huaidao's bedroom. The whole inner courtyard has a pleasant scenery, but it is a little less popular.

, thinking of something, his face became increasingly red.

Qin Huaidao couldn't figure out what Yu Zhang was doing here alone. After all, he hadn't gone through the door yet and it was inconsistent with etiquette. If word spread, it would damage his reputation. He couldn't help but ask: "Yuzhang, why are you here?"

"My father asked me to come. He said that you will be very busy next time. It's not good if there is no one in charge in the palace. Let me help you do something." Yuzhang whispered, his face turned red to the ears. In the palace,

As a man of precocious wisdom, Yuzhang understood everything he should know, so he naturally knew that doing so was a bit frivolous and would damage his reputation.

When Qin Huaidao heard that she had come to be the hostess in advance, Li Er was really... He was very busy and was often away from home. He'er also ran the workshop and shop, so he couldn't take care of many things. It was really inappropriate for him to have no one in charge of the house.

There was an engagement anyway, and Li Er didn't dare to cancel it easily, so he nodded with a smile.

"Brother Qin, please don't misunderstand. We must return to the palace before dark." Yuzhang lowered his head as he said it. He was too embarrassed to look at Qin Huaidao again. He was also a little annoyed with his father. How could a girl be like this... It's not like he was cheating.

That's what I did. However, thinking of my father's sincere words before coming here, I mustered up the courage to say again: "This is all my father's intention, not mine..."

Looking at Yu Zhang's shy expression, Qin Huaidao joked: "You don't want to come?"

"No, I...I just...Oh, don't ask." Yuzhang stamped his feet anxiously, his hands and feet were so cramped that he didn't know what to do, he was really embarrassed to death.

"Hahaha, okay, no more questions." Qin Huaidao was in a good mood. Li Er may have wanted to monitor him, but more importantly, he wanted to rush the work. He wanted to make full preparations and send troops as soon as possible to capture Tubo. He couldn't refuse anyway.

Just ask someone to inform everyone in the government.

Not long after, the servants came over one after another, and were surprised to see Yu Zhang, who was very noble, but as shy as a little girl. They were a little surprised, but did not dare to ask more questions. He'er also hurried over after hearing the news, and recognized him at a glance.

, looked at Qin Huaidao curiously, feeling a little nervous for no reason.

Qin Huaidao looked at everyone and said: "Uncles and aunts, this is Princess Yuzhang. She has an engagement with your young master and will come here often in the future. If you need advice on anything at home while I am away, please go directly to the princess."

"Well, I've met the princess." When everyone heard that she was the future mistress, they quickly saluted.

Qin Huaidao continued to explain: "Everyone is here, and we just want to talk about something. The restaurant in the East Market will open in three days. All kinds of drinks, tea, and ingredients must be prepared and shipped there before dusk tomorrow. The cook will seize the time to practice in the past two days.

Now that you’re done cooking, let’s go and get busy.”

"Here!" Everyone saluted and left one after another.

"Is it going to open in three days? What can I do?" Yuzhang asked in surprise. This will be the future livelihood of the family, so they need snacks.

However, Qin Huaidao had an idea and thought that if the restaurant was handed over to Yuzhang, no one would dare to cause trouble. Of course, the princess could not come forward, which was against etiquette, so he said: "Yuzhang, I'm not here, the house and the

The restaurant will be left to you to take care of from now on, He'er. Besides taking care of the workshop, you can help the princess more."

"Here!" He'er agreed.

Yuzhang knew He'er's status in Qin Huaidao's mind, so he didn't dare to exaggerate, and said politely: "Thank you for your help, He'er."

"I don't dare, it should be like this." He'er didn't dare to be dissatisfied with the future mistress and quickly returned the gift.

After thinking about it, Qin Huaidao felt that some things were better to be vaccinated, so he said: "Yuzhang, there is something I hope you can understand. I am making wine, frying tea, etc. The core technology is related to livelihood and cannot be passed on to others. You can go back and wander around.

If you ask out of curiosity, they will definitely not tell you. I hope you understand."

"It doesn't matter." Yuzhang said quickly, thinking that it was better not to know, so as not to embarrass his father when he asked.

Qin Huaidao was delighted when he heard this. It turned out that the girl was looking out, which was good: "Then you can take a look and go to the restaurant when you have time to get familiar with it first. It's definitely special."

"If you have something to do, go over there." Yu Zhang said understandingly.

"Okay, I'll go then." Qin Huaidao said, giving He'er a look and walked forward.

He'er saluted Princess Yuzhang knowingly and hurried after her.

The personal maid Xiao'e, who had been silent until now, was a little disgusted when she saw this scene, and whispered: "Princess, he just left you alone and took He'er away. The look in his eyes just now clearly meant something was wrong, but he didn't say a word.

Obviously they are wary of us."

Yuzhang frowned and reminded: "He'er and Brother Qin grew up and have a close relationship. They are the most trusted confidants. They will definitely be brought into the house in the future. You will be the same in the future. They will all be sisters in the future. Brother Qin has a big brother.

Talented, I’m afraid I can’t tolerate a jealous woman, so don’t say anything that affects the relationship between sisters.”

"I know, but you can't guard against us? The princess has come to the house to help him, and she will be the mistress of the house from now on." Xiao'e was a little unconvinced.

"It's normal to be on guard." Yuzhang looked a little dissatisfied, but after all, they were as close as sisters, so he patiently explained in a low voice: "Don't forget that we haven't officially married yet, so we can't be considered a real couple. Moreover, I was sent here by my father.

, that is to say, Brother Qin is broad-minded and upright, and he also left the house and restaurant to me. Anyone else would definitely treat him as someone sent to monitor him, do you understand? "

"I understand." Xiao'e suddenly realized, with a smile on her face.

"As long as you understand, it's actually for my own good not to tell me the core technology, so as not to be caught between my father and him. You don't understand my father's temper..." Yuzhang hesitated to speak, but in the end he didn't say anything.

…

Qin Huaidao didn't know about the conversation between Yuzhang's master and servant, so he hurried out of the house with He'er and came to the room where He'er usually worked in the workshop. There were quilts, boots and other finished products piled everywhere. Qin Huaidao saw a pen and paper on the desk and picked up

I drew an oval, a hanging basket on the bottom for people to stand on, and a stove on top, added some lines, marked the dimensions, and then started to meditate.

"What is this?" He'er asked curiously.

"Don't disturb a thing that can fly." Qin Huaidao said with a frown, thinking to himself.

Hot air balloons are mainly composed of airbags, burning devices and hanging baskets. The quality of materials in this era is limited. Cowhide is enough, but the cost is too high. Linen can be used instead. The warp and weft of linen are tightly intertwined, very strong and wear-resistant.

Strong enough.

The hanging basket should not be too heavy, but it must be strong enough. You can use hardwood as the skeleton and bamboo to weave the frame. Thanks to the ropes, keeping the balance is not a big problem. The biggest difficulty is the ignition device. There is no propane or liquefied gas, so we can only

When burning a fire, the fire cannot travel very high, so we can only make a stove and install it at the mouth of the airbag, with people under the stove.

If you use coke as fuel, you can maintain a constant temperature. When it needs to rise, add flammable wood, and prepare kerosene to assist combustion. Once the flame is high, the hot air balloon can rise.

With the general direction, the details will be taken care of. The stove and hanging basket have to be built back to Qinjiazhuang, and the experiments will be the best. The airbag can be left to the people in the workshop. Qin Huaidao explained to He'er: "Select some trustworthy ones."

People use linen to make airbags and wait until they pass the inspection to make them on a large scale. How long does it take to make one?"

He'er looked at the drawing and said uncertainly: "It looks simple, like a bag, but it's too big. It might take some time. I haven't done it before. I'm not sure how long it will take. Is it urgent? Then I'll find more.

People are working all night to make it and try to make it early tomorrow morning."

Qin Huaidao nodded, explained some details and requirements, drew a new airbag drawing and kept it as a backup, and hurriedly left with other drawings.

At noon, Qin Huaidao came to Qinjiazhuang and first went to see the training base. The newly joined and off-duty members of the village guard team were training.

Walk to a place where no one is around.

"Young Master, you came just in time, how about taking a look at these papers?" Xue Rengui handed over two types of papers.

One was soft and white, exactly the kind of straw paper I had dreamed of for a long time. The other was relatively hard and looked like familiar printing paper from later generations. I was overjoyed and asked, "How much does it cost?"

"You can make about thirty pieces of this kind of papyrus for one penny, and about ten pieces of white paper for one penny."

"So cheap?" Qin Huaidao's eyes lit up.

"This is still unskilled, and the materials are almost worthless. Once the workers become proficient, the cost can be reduced slightly. There is no straw paper in the market. This white paper is more expensive and easier to use than rice paper, but I have asked about the same white paper on the market.

At one penny a piece, ours is too cheap."

Qin Huaidao smiled with satisfaction, his eyes twinkling, and asked: "Maybe the yellow paper was made softer last time?"

"I'm trying it now. It's already softer than last time. I didn't feel it was enough, so I didn't take it out. The cost is about half cheaper than straw paper."

Qin Huaidao became even happier when he heard this, and immediately said: "We will make a batch of these two and send them to the house. They can be produced on a large scale. The development of yellow paper has also been accelerated. The lighter color is better. The restaurant will open in three days. Bring some protection."

Someone from Team Zhuang can help me, is there anything else you can do?"

"there is none left."

"Okay, go and get busy. I'll go to Tubo with me later to earn you a title."

"Ah?" Xue Rengui was a little confused. That was something he couldn't even imagine. Can he earn it casually?

"We can't tell you the specific situation yet. You will know when the time comes. Remember to keep it secret." Qin Huaidao warned him and left in a hurry. When he came to the construction site, he saw, good guy, five rows of the city have been built with hundreds of houses. The men and women of Qinjiazhuang

Everyone, young and old, is busy, and even children come to help.

At this moment, Qin Huaidao realized that he had underestimated how much everyone loved and valued Qingzhuan Wafang Store. Seeing everyone skillfully stacking bricks, delivering bricks, digging pits, transporting materials, etc., his face was sweating profusely, but he smiled happily.

A sense of accomplishment surged into my heart.

"It's the young master, the young master is here." Someone spotted Qin Huaidao and shouted excitedly.

Everyone stopped what they were doing and gathered around, looking at him eagerly.

In the past, when everyone heard Qin Huaidao say that he wanted to build a house with blue bricks and tiles, they didn't really believe it. They just regarded it as a wish and didn't dare to question it, so they didn't take it seriously. But it's different now. It was a real house with blue bricks and tiles.

And so many have been built, how can it be fake?

This kindness is greater than heaven!

Huang Lao separated from the crowd and came up, bowed solemnly, and said: "Young Master is a great kindness, and no one in the Qin family village will dare to forget it, but there is no ambiguity in your instructions."

"But if you have an order, never be vague!"

Everyone gave instructions and said, "The promise is simple, frank, and sincere, and it is also a promise of life."

"I'm serious, it's all thanks to everyone." Qin Huaidao quickly said politely and looked around. The wall has been built. A cement road goes straight from the entrance of Qinjiazhuang. It is straight, flat and spacious. It can run two carriages at the same time.

, there are also branching paths, which are also paved with cement, making it much more convenient.
To be continued...