No useful information was obtained from Li Yifu. Although Li Yifu talked freely about Ci'en Temple and Liu Shuang, he was obviously hiding something. When it came to the key points, he always made people feel that he was evasive. This made Li Hong even more curious about Ci'en Temple.

In fact, it is no wonder that Li Yifu was evasive and ambiguous when talking about Ci'en Temple. It was because some time ago, he fell in love with a concubine of a dismissed official in Ci'en Temple and wanted to take her as his own concubine, so he asked Liu Shuang to ask Ci'en Temple to release her. So when Li Hong asked about it, Li Yifu had something to hide and did not dare to reveal too much to Li Hong.

The families of the six craftsmen brought by Li Yifu were also sent to Prince Pu's Mansion for resettlement according to Li Hong's wishes. Several craftsmen have been melting sand day and night according to the instructions of Prince Dai.

Li Hong now does not even plan to build two Linglong Towers to fulfill his promise. The composition of the glass melted in the past few days is still far from his requirements.

Besides, he didn't want to make glass ornaments or glass objects like the Linglong Tower. If he had to make them, he might as well add quartz sand and other ingredients to the glass and melt it into high-grade crystal to make ornaments.

Now he is trying every possible way to make glass because in a few years his father will issue an order to continue the construction of the Daming Palace. So what he wants now is to make large areas of glass to install on the windows. Then he can make a lot of money from his father and the court!

However, he forgot that by that time he was already the crown prince of the Tang Dynasty. After learning that the price of glass was too high, he discovered during his account checks that he had dug a hole for himself.

This is also why he asked Li Yifu for two blacksmiths. He wanted to see if the two blacksmiths could stamp the glass into large blocks while it was liquid before it cooled down without the stamping technology.

For more than ten days, Li Hong had spent most of his time figuring out the intricacies of Ci'en Temple and hanging out with a few craftsmen. Everything was progressing smoothly as he had expected, but the large area of ​​stamped glass was still not formed and could not be installed on the windows as he wished.

...

...

In the backyard, Li Hong was furious and cursed, but it was of no avail. Instead, he frightened the craftsmen so much that they knelt on the ground and dared not get up.

Although large areas of glass were not made, a breakthrough was made in the development of artificial crystal. After seeing the ** crystal, the two glass craftsmen who had hit upon the right path suddenly had an idea and pressed it into two palm-sized crystal plates. After polishing the four sides, it looked like a transparent jade to be carved.

Li Hong weighed two crystal tablets in his hands, and said with some frustration and annoyance: "I will return to the palace in a few days. Although the glass has not been made, I have made this crystal by accident! It is really interesting. How about this, you continue to study the toughness and hardness of the glass, and you can make a small number of these crystal tablets when appropriate."

The two glass craftsmen nodded timidly. When they knew how these things were made, the value of these crystals did not seem so precious and rare in their eyes, so they did not stare at the two crystal plates without words.

"What are your names?" Li Hong asked.

"Replying to King Dai, our common people are Ren Lao and Ren Yuan." The two glass craftsmen replied.

"Working hard and never complaining? Interesting, your parents really made it easy for you to name you. Use these few days to make a dragon-shaped crystal pendant and a phoenix-shaped crystal pendant so that I can take them to the palace for review. This should be a piece of cake for you, right?" Li Hong hoped that the two crystal dragon and phoenix pendants would allow his father and mother to let him stay outside for more time.

The two of them looked at each other confidently with a hint of excitement. This was the impulse that had already occurred to them when they were stamping. As a craftsman, the first thing they wanted to do was to carve some patterns on this beautiful, bright, and colorful crystal plate. When they heard the King's order, they immediately nodded excitedly and firmly.

After Li Hong signaled them to leave, he asked Xia Zhi to take out the two exquisite towers that Chengyang and Lanling gave him again. He stared at the two glazed towers in a daze, as if he was trapped in a demonic barrier.

Three nights later, there were only four days left before Li Hong returned to the palace. Under the leadership of Hua Meng, Ren Laozi walked into Li Hong's residence, each holding a rosewood box.

"I greet the King of Dai." Ren Laodi said as he stood still with the wooden box in his hands.

"How is it? How's it going?" Li Hong looked at the wooden boxes in the hands of the two people, knowing that the big thing was done, but still asked.

"King Dai, I have made it according to your instructions. Please have a look." Ren Lao said. At the same time, a trace of imperceptible pride flashed across the faces of both of them. It seemed that they were quite proud of their craftsmanship.

Li Hong took the two wooden boxes from Hua Meng and placed them on the table. He opened them one by one and took out the two crystal dragons and phoenixes inside. His eyes immediately lit up!

Under the light, the two dragon and phoenix crystal pendants were shining brightly. And because of the high temperature, the dragon and phoenix carved on the palm-sized dragon and phoenix crystal pendants were shining with a faint blue flame, as if the high-temperature flame was immersed in it. As they were turned at different angles in the hands, the dragon and phoenix seemed to be alive and vivid on the crystal pendants.

"Great! It seems that Li Yifu did not deceive me. The carving technique is so lifelike and vigorous!" Li Hong pondered for a moment and immediately said to Hua Meng, "Send Bai Lu over and take these two wooden boxes to the palace to my father, the emperor and my mother."

"Yes, King Dai." Hua Meng looked at the two crystal clear plates. The dragon and phoenix on them were in Li Hong's hands, as if real dragons and phoenixes were perched on the crystal plates.

He looked very happy. If such a treasure was presented to His Majesty and the Queen, this King would have a bright future. Moreover, the position of Crown Prince in the future would probably be difficult to escape from the King's hands.

After Hua Mengli went to find Bai Lu, Li Hong continued to ask Ren Laorenyuan: "How many crystal cards like this do you have?"

"Replying to King Dai, apart from the two pieces in your hand and these two pieces, there are only seven pieces left to be made during this period of time."

"Well, it seems that this thing is not so easy to make. I'm afraid these pieces are also selected from the best quality. How about this, you can carve the remaining seven pieces into four Bodhisattvas and three Arhats tonight. I will need them tomorrow morning."

"Yes, King Dai." Ren Yuan said.

After Ren Laoren left, Li Hong put the two crystal plates in his hand together with the Linglong Tower for comparison. At first glance, the two Linglong Towers looked as embarrassing as ugly ducklings, and they lost their luster all of a sudden, making it difficult to shift the gaze from the crystal plates to the crudely made Linglong Towers.

Bai Lu took the two wooden boxes and went directly to the palace. Li Hong told Hua Meng to invite Cheng Yang and Lan Ling to Prince Pu's mansion early tomorrow morning. Looking at the two exquisite towers, Li Hong thought, "It's time to repay Cheng Yang and Lan Ling for their kindness."

Early the next morning, Ren Laoren placed the remaining seven pieces on Li Hong's desk. At this moment, Xia Zhi was still helping King Dai dress and wash.

And early in the morning, no one noticed that Bai Lu had not returned since she went to the palace last night.

Lanling and Chengyang arrived at Prince Pu's Mansion at the same time. Li Hong, with her hair tied in a ponytail, stood at the door to greet them. When he saw the two beauties getting off the car, he hurriedly rushed forward with a giggle.

"How disgraceful! A dignified Prince of Dai is too lazy to tie his hair. I don't know if this is your idea or your maids are just too lazy." Lanling said unhappily when he saw the ponytail behind Li Hong's head.

"Don't blame them. It's my nephew who is too lazy to tie up his hair. Besides, we are not in the palace now. Please allow Hong'er to be lazy for a few days. Besides, Hong'er will have to go back to the palace after being lazy for a few days." Li Hong walked inside holding Lanling's hand.

"I think you should have been allowed to return to the palace long ago. Otherwise, you were allowed to do whatever you wanted in Chang'an City. Do you have any royal etiquette at all? You've almost become a wild monkey." Chengyang held Li Hong's other hand and scolded him.

"How could that be possible? Hong'er was always praised by his teacher when he was studying in the palace." Li Hong said with a chuckle.

"Tell me, you clever little guy, why did you call us two here? And you're so mysterious about it." Lanling asked while stroking Li Hong's ponytail.

"Hehe, of course it's a good thing. In order to thank you two aunts for your kindness to me some time ago, I specially prepared a small gift for you two aunts today. I hope you two aunts won't dislike it when the time comes." Li Hong led the two of them to his yard.

After entering the room, Lanling and Chengyang were immediately attracted by the two exquisite towers on the table that they had given to Li Hong a few days ago. Chengyang pointed at the exquisite towers and asked in surprise: "You bastard, why haven't you given them to your father yet? You don't want to live anymore, aren't you afraid that your father is still angry and will do you..."

Before Chengyang finished speaking, Li Hong held two exquisite pagodas and placed one on each of their desks. Then he bowed deeply to them and said solemnly, "Hong'er would like to thank you two aunts for your concern for Hong'er and even for taking out the treasures that Grandfather Emperor gave you to help Hong'er. But Hong'er believes that there is no reward without merit, and these two exquisite pagodas have a special meaning to you, so Hong'er hopes that you two aunts can take them back. Hong'er appreciates your kindness and will always remember it in his heart."

Lanling and Chengyang were both shocked and asked, "Why? How are you going to explain this to your father and mother? Don't you know how serious this matter is?"

Li Hong smiled slightly and said seriously, "It is precisely because Hong'er knew that I dare not rashly accept the generous gifts from the two aunts. Oh, by the way, Xia Zhi, bring it up, and present the gifts I prepared for the two aunts first."

Xia Zhi smiled and walked quickly to the two princesses. There was another small box on the table.

"What is this?" Chengyang asked.

"You will know once you open it, aunt. After reading it, Hong'er still has something to discuss with you two aunts." Li Hong said mysteriously to Chengyang.