After trial in the royal palace, the coal ball furnace began to be sold in the Yizhou market. This newly emerging heating and heating tool caused a big sensation in Yizhou as soon as it appeared. Not only locals in Yizhou, but also merchants outside also squeezed their heads and wanted to buy some and take them back. However, at this time, Li Yan asked Guan Sixing to issue a purchase restriction order, stipulating that only locals in Yizhou with their ID cards could buy coal ball furnaces, because although Taoyuan had already started mass production, Taoyuan's productivity could not keep up with the large population, so for a period of time, Li Yan only planned to sell coal ball furnaces to locals in Yizhou.

As for other places, we can only wait until the market here is saturated before talking. Faced with Li Yan's actions, some foreign merchants were naturally dissatisfied, but they couldn't twist their arms, so they had no choice but to wait for the day when sales were opened.

After staying in Hedong Road for more than a month, Tong Nian transported all the coal accumulated in Hedong Road and brought the merchants' demands to Li Yan. "Your Highness, the purchase of coal in Hedong Road was very smooth. We made a lot of money. But the merchants seemed very interested in our steamboats. His Highness said before that he wanted to sell steamboats to make up for the deficit of the shipyard. Now I wonder if he could produce some for sale?" After Tong Nian returned from Hedong Road, he told Li Yan about the demands of the merchants. Not only Hedong Road, but many merchants in many places now have their own ideas to buy steamboats, because during this period they have fully felt the power of this kind of ship, and they can only pull their merchant ships a long distance in just a while.

Taoyuan’s hot air balloon driving technology has matured. Li Yan originally planned to go to Taoyuan to try the feeling of sitting in a hot air balloon. After all, in modern times, this hot air balloon project is also an aristocratic sport. However, before he took Cui Yingying and Su Moer out, he met Tong Nian who was coming towards him. After hearing Tong Nian finish his words, Li Yan pondered and said, "Well, it can be sold. But let the shipyard produce some low-tech content for them, our steamboats still have to maintain their advantages."

"This old slave understands!" After obtaining Li Yan's permission, Tong Nian quickly said that in this way, the Shengtang Chamber of Commerce has another source of income, and the sale price of this steamship will definitely not be cheap, so it will definitely be a big profit. Thinking of Tong Nian's joy, his mind is full of money now.

Seeing Tong Nian standing silly, Li Yan said, "You are here, just go to Taoyuan with us. Today there is a new thing, let's go and experience it together."

Tong Nian looked behind Li Yan, Cui Yingying, Su Moer, Qin Huaiyu, Zhu Youzhi, Shangguan Yi and Zheng sisters were all there, and was surprised. He didn't understand what could bring the core members of Yizhou together.

In fact, it was not just Tong Nian who didn't understand, but even the people behind Li Yan didn't understand. After they received Li Yan's notice, they came to the palace. Li Yan had to take them to Taoyuan without saying a word. His mysterious look made them confused.

"Let's go!" Li Yan smiled and waved his hand. The horse was ready outside the door.

When he arrived at the entrance of Taoyuan Valley, Li Yan met Li Ran who was waiting there. He said, "What's wrong? Can you take off now while ensuring safety?"

"Your Highness, don't worry. After renovating the hot air balloon, its safety is not comparable before." As he said that, he and Li Yan walked side by side.

When everyone saw Li Ran, they showed strange expressions. Not long after Li Ran came to Yizhou, he became Li Yan's confidant minister. Of course, Li Yan's former subordinates were very unhappy. So after a debate with Li Ran on government affairs and military affairs, they never dared to say anything since then. They finally understood what it means to know astronomy and geography, and to be knowledgeable and knowledgeable.

The others' expressions were strange, but Qin Huaiyu's expressions were afraid. After all, he had seen Li Ran turn her buzz head into long hair and waist like a magic trick.

Hearing this, Li Yan showed a happy smile. While asking about Li Ran about the situation, he was walking inside. At this time, he could already see the hot air balloons floating in the sky.

"Your Highness!" After seeing the arrival of a group of people, Tong Yu immediately came over and greeted everyone one by one. When Tong Nian came, he showed an unnatural expression. Although the father and son were father and son, they might not speak together because of the ideological gap. They would quarrel with each other when they said a few words together. Therefore, the father and son stared at each other when they met.

"Hmph!" Sure enough, seeing Tong Yu's appearance, Tong Nian snorted, focused her eyes on the hot air balloon in the sky, showing a look of surprise.

When Li Yan saw this scene, he hurriedly changed the topic and said, "How about this hot air balloon? Have you tried it?"

Speaking of this, Tong Yu immediately felt energetic, "Your Highness, I have already taken it. It's really magical and it feels wonderful, especially when you rise to a high altitude, you can see Yizhou City above Taoyuan."

"It's too dangerous, won't it fall?" Cui Yingying said, looking at the things in the sky with some concern. Did Li Yan ask them to ride this today? The girls looked at each other with fear. After all, they had never seen such things before, but they just heard that this was called a hot air balloon.

"Don't worry, Princess, we have tried it hundreds of times. It is very safe and there will be no accidents. There are also protective things on it." Tong Yu explained.

Li Yan was even more eager to try after hearing Tong Yu's description, and said, "Let them come down and try it."

"Okay, Your Highness!" Tong Yu turned around and said something to a craftsman. Then the craftsman shook the flag. Some people on the hot air balloon were shaking the flag. After a while, the hot air balloon began to slowly descend.

"Who dares to go up with me?" Li Yan said to the people he brought.

He shook his head almost at the same time. Not only Cui Yingying, but also Qin Huaiyu, a brave figure who usually shows a look of fear.

Li Yan smiled wickedly and said, "Qin Huaiyu, Zhu Youzhi, you two come up with me, you are really useless. With this courage, you still want to like girls. Don't you know what it means to love heroes? You have all become black bears."

Upon hearing this, Qin Huaiyu and Zhu Youzhi showed constipated expressions. They each looked at Zheng Binglan and Zheng Binglu, and saw that they both looked at them with bright eyes. Zhu Youzhi felt very passionate in his heart and patted Qin Huaiyu on the shoulder, "If you don't dare, forget it, I'll do it!"

"Who dares not!" Qin Huaiyu and Zheng Binglan said secretly, immediately raised their chests and said, then walked to Li Yan first.

Someone slapped his head, and the others suddenly felt lost. Dou Xiande and Wang Yinlong walked forward hesitantly.

At this time, there were two hot air balloons floating in the sky. Both hot air balloons were purchased by Li Yan from Hyundai. If they were produced by Taoyuan, he would not dare to try it. Moreover, after seeing this hot air balloon, Li Ran modified the hot air balloon to make the combustion system more stable so as to avoid the combustion outage halfway.

Just now, everyone looked at the hot air balloon in the air and didn't feel anything, but when the hot air balloon landed, everyone looked surprised, because the hot air balloon that was more than ten meters high was not a behemoth to them.

"Everyone, go up!" Li Yan smiled. He was a little timid when he said that, so he grabbed these people to raise their courage.

The Adam's apple squirmed for a moment, and Qin Huaiyu's face turned a little pale, but with the help of the hot air balloon driver, they boarded the hot air balloon, and the others also climbed up one by one.

When everyone stood up, the hanging basket shook for a while, the hot air balloon slowly rose, and Li Yan's eyes also began to look down at the people below.

"Your Highness, isn't there any danger?" Cui Yingying shouted at him after the hot air balloon rose five or six meters, and Su Mo'er also showed a worried look.

Li Yan gave them a look of relief and said, "Don't worry, nothing will happen."

The hot air balloon rose very quickly, and soon the voices below gradually became less clear. At this time, Li Yan began to admire the surrounding scenery from a high place.

"Your Highness, how long will we fly?" Qin Huaiyu's face turned pale when she said this, and her legs began to shake.

Zhu Youzhi and others were also nervous at first, but after the hot air balloon rose, they gradually began to show a relaxed look and enjoyed the surrounding scenery like Li Yan. After all, for them, this flying is beyond reach, and the lofty sky is the existence they look up to. Now they finally felt the taste of a bird flying in the sky.

Zhu Youzhi smiled and said, "Huaiyu, are you afraid of heights, right?"

As soon as these words were spoken, the few people showed curious expressions.

"I don't know either, I just looked down and became scared." Qin Huaiyu said.

"Hahaha..." The few people laughed heartlessly. It turned out that Qin Huaiyu was also afraid of something.

As the few people said, the hot air balloon flew higher and higher, and soon the people below could no longer see clearly. Shangguan Yi, who was facing the west, pointed to the West and said, "Your Highness, it turns out that you can really see Yizhou City!"

When everyone heard this, they looked in the direction he pointed, and saw a city wall of four squares and four straights standing on the ground in the distance. There was a big river with silver light in the south of the city wall. Black spots could be seen vaguely on it, but it was a ship that was shuttled back and forth.

"Your Highness, can you fly to the top of Yizhou?" Dou Xiande said expectantly. The scenery in his eyes really shocked him, and he was very excited.

"It's better not to do it!" Qin Huaiyu squatted in the basket with a cowardly expression.

Everyone looked at him with contempt, and Li Yan said, "Go down first, put General Qin on the ground, let's play slowly, how about?"

"good."

"Very good"

“…”

Everyone agreed. (To be continued...)
Chapter completed!