Everyone looked at the messy alchemy room, and the doubts in their hearts became even stronger.

"Yu'er, are you alchemy or demolishing the house, how did you get it like this?" Yaochen smiled a little bitterly, looking at the power of this explosion, Wang Pindan's medicine could not cause such destructive power.

"Eh, that, I'm sorry, I made a mistake!" Duguyu scratched his head a little embarrassed.

"Dugu student, what kind of pill are you refining? Is it Wang Pin pill?" A mentor looked at Dugu Yu in surprise, a little surprised in his heart.

"Wang Pin?" Dugu Yu was stunned for a moment, and hurriedly waved his hand and said, "It's just some ordinary pills such as Rejuvenation Pill and Huiyuan Pill." ”

The mentor breathed a sigh of relief, he saw that Dugu Yu was not very old, if he could refine the Wang Pin Pill, then how could they be embarrassed.

"Well, it's not easy to refine the Dipin Pill at a young age!" When the mentor heard this, he immediately felt that Dugu Yudandao's talent was extraordinary, it was not easy to achieve such an achievement at the age of ten years old, coupled with his own cultivation was extremely strong, this kind of person could no longer be described as a genius.

"Alright. Yaochen interrupted the conversation between the two, looked at Dugu Yu and said, "Can today's task be completed?"

Dugu Yu nodded, and with a wave of his hand, sixty porcelain bottles appeared on the ground, each containing ten pills.

Yaochen picked up a bottle, opened it and poured out a pill, put it in his hand and carefully observed it for a while, sniffed it in front of his nose again, and nodded with satisfaction, "Yes, the color is transparent, the medicinal fragrance is introverted, the appearance is smooth and round, the size is uniform, and there is no doubt that the high-grade pill is high-grade." ”

After Yaochen finished speaking, everyone on the side was shocked, they thought that Dugu Yu was just refining a low-grade pill, but they didn't expect that what he was refining was actually a top-grade pill.

Everyone stepped forward to pick up the porcelain vase, studied it carefully, and looked at Duguyu, a trace of eagerness flashed in their eyes.

"Ahh ”

"This, how is this possible?" Everyone was shocked, if Yao Chen was not qualified, would there be anyone under the sky who was qualified enough?

A group of people studied here for a long time, and it was not until finally Yaochen issued an eviction order that everyone left.

"Yu'er, I'm afraid you're not just refining these pills, right?" Seeing that the medicine dust had dispersed, he asked.

"I can't hide it from you!"

Then Dugu Yu told Yaochen his thoughts, although Yaochen didn't know how to refine them, but he was also taken aback by Duguyu's thoughts.

"Show me your pill that has been successful. Yaochen said eagerly.

"Here, it's all here. Duguyu handed out a porcelain vase.

Yaochen hurriedly took it, poured out a pill and observed it carefully.

After about a cup of tea, Yaochen finally put down the pill in his hand.

"There is no doubt that this elixir has reached the top quality, but it also contains a special power, which seems to be like the power of space. If you look closely, the structure inside has been evenly divided into countless equal parts by the power of this space. This medicine is refined by you, you can try to swallow one pill, I will protect you for the Dharma, and I will definitely protect you. ”

Although the medicinal properties of this pill cannot be directly determined by the medicinal dust, it should not be highly toxic in the first instance.

"It's okay!" To be honest, Dugu Yu was also a little curious, so after making preparations, he directly swallowed this rejuvenation pill.

The pill entered the body and floated directly above the dantian, only to see that it did not have any movement, so it stayed there quietly.

"Hmm, what's the situation?" Dugu Yu was dumbfounded, it stands to reason that after the pill enters the body, it is directly turned into energy and absorbed by the body, and then achieves the desired effect, but this pill does not move, it is really elusive.

Dugu Yu took out his long sword and made a sharp cut on his arm. I saw that the Rejuvenation Pill finally moved.

"Bobobo!!"

With a series of light sounds, I saw the pill spin wildly, and the small space divided inside exploded partly, and then turned into energy and surged towards the wound, and the wound healed at a speed visible to the naked eye in an instant.

"Well, the medicine works well!" Yaochen nodded on the side.

"This ......" Dugu Yu was dumbfounded, only to see that the pills in the dantian were smaller, and there was no tendency to escape.

Dugu Yu told Yaochen about the matter as it was, and then the two of them were silent.

"According to what you said, this pill can actually exist in the body as a reserve at this time, which is very rare, it saves time and does not waste medicinal power, okay, good!"

The more Yao Chen spoke, the more excited he became, this new type of elixir was simply a great blessing for cultivators.

First, the price of the pill is generally very high, and many people are reluctant to buy it, and secondly, once the pill is taken, the rest of the medicinal power can only be cleared out after the injury is healed, otherwise it will form erysipelas after a long time.

But Dugu Yu's elixir will not, this elixir does not exist in the form of energy after eating, it is still an elixir, and the energy will not be diffused until it is needed, and it will not be wasted at all.

"When this Dan comes out, I am afraid that it will rewrite the history of the Dan Dao of the entire continent. Yaochen looked at Dugu Yu with a solemn face and said, "Yu'er, before your strength is strong enough, this Dan must not be spread at will, otherwise it will cause a catastrophe." ”

Dugu Yu understood after a little thought, Pifu was not guilty, if everyone bought his pills, then the other alchemists would definitely be impacted, and the major forces would not allow such a situation to happen, after all, selling pills was also a big income for them.

"I understand, I will keep these pills for my own use, and I will not add the power of space when refining pills for others in the future. Dugu Yu solemnly assured like Yaochen.

"Well, you go and rest first, I'll have someone come over to clean it later, and I'll get you a new Dan furnace. After saying that, Yaochen turned around and left.

Back at the resting residence, Dugu Yu couldn't figure out why the Dan furnace exploded in the end, could it be that the power of space was too violent? But it didn't make sense, after all, it had been successful once before, and it only increased the power of space later.

Dugu Yu knew that it was difficult to innovate a method of alchemy, and most people on this continent still continued the practice of the ancients, only with slight changes, like the method of hundred refining, only his grandfather and grandson could use it, which shows the mystery of Dandao.

In the following days, Duguyu completed the tasks assigned to him by Yaochen every day, and also accumulated a lot of elixirs.

Every night, Yaochen would also come to discuss with Dugu Yu the issue of spatial vibration intervening in the method of refinement.

Time passed in a flash. On this day, Dugu Yu finally succeeded in refining the top-grade heaven-grade pill, and he only lacked some experience from the Wang Pin pill, after all, the elixir above the Wang Pin pill was extremely precious and in great quantity, and refining and scrapping it was a big loss.

"Okay, tomorrow the academy will summon you to go to Tianyuan Academy to participate in the Five Academies Competition, you have a good rest today, and you will leave tomorrow to go with me. ”

"Is Grandpa Yao going with you too?" Dugu Yu originally thought that this time only Jian Wuchen would lead the team, and the other hall masters and elders would not go.

"Of course you have to go, the four peak masters, the five hall masters will go together, not for anything else, just to give you a strong momentum. Yaochen said with a smile.

Dugu Yu didn't speak, obviously not agreeing with this statement, but no matter what happened, he still had to go to the five courtyards.

Early the next morning, Yaochen and Duguyu came to the academy square together. Looking at the four peaks towering around and the five palaces around it, Dugu Yu knew that this place must be extremely important to Qianyuan Academy.

"Yu'er, this inner courtyard square is the top priority of Qianyuan Academy, you see that the middle is the sculpture of the first dean, it is said that someone has had an understanding in front of the sculpture and has gained a lot of opportunities. Look there again, it's the Academy's Treasure Pavilion, and that's the Library......"

Yaochen kept introducing the surrounding buildings to Duguyu, and finally, Duguyu set his sights on a simple tower.

"What is this tower?" Dugu Yu asked, looking at the inconspicuous little tower.

"Hehe, don't be fooled by its appearance, the interior of this tower is a space of its own, which is a standard for testing strength, the higher you break, the stronger your strength will be. Yaochen smiled and explained for Duguyu.

"It turns out that there are so many doorways in the inner courtyard!" Dugu Yu was a little surprised, after all, he had only been in the outer courtyard, and in addition to a residential area, even the martial arts training ground was only a small one, and the environment was far worse than here.

At this time, Duguyu understood why so many people wanted to enter the inner courtyard to practice.

Seeing that Yaochen had left and the others had not yet arrived, Duguyu slowly walked to the front of the tower. I saw a stone tablet of unknown material standing there, with a few big characters engraved with golden light: Ask Dao Tower!

"Ask the Taoist Tower, and the name is domineering, but I don't know if you can really understand the Great Dao in it. Dugu Yu shook his head, turned around and was about to leave, but heard a discordant voice coming.

"Hmph, the little Yishan Realm dares to comment on the Dao Tower!" Then, a young man in white appeared on the spot, looking at Duguyu, the anger in his eyes seemed to be able to kill.

"Who is this person? I don't seem to have offended him, right?" Dugu Yu said secretly in his heart, but he didn't want to do much, so he turned sideways and walked towards the center of the square.

But the young man in white was unrelenting, and dodged in front of Dugu Yu again, "You are Dugu Yu from the outer courtyard, I heard that Elder Taishang specially gave you a place, I want to see what you are capable of?"

"Who are you?" Dugu Yu asked with a frown.

"Who am I?hahaha, don't you even know who you are stronger?" The young man in white laughed angrily, he didn't expect that he would be so despised by this black-clothed young man with a sword on his back, or twice.