"Hmm!" Mo Feiyu nodded slightly.

"If your guess is correct, this bottle should be the marrow washing liquid, and Your Excellency is Young Master Mo Feiyu!" Master Wu looked at Mo Feiyu and smiled faintly, the expression on his face was slightly respectful.

Mo Feiyu was also a little surprised, and said:

"You know me?"

Master Wu smiled and said:

"Hehe, don't dare, yesterday the young master sold this kind of marrow washing liquid, and our shopkeeper also bought a bottle, and brought it to me to identify it. ”

Hearing this, Mo Feiyu became interested and asked with a smile:

"They call you Master Wu, presumably your alchemy attainments are also good, I don't know how you identify?"

Master Wu showed a look of shame and said:

"Young Master Mo is making fun of you, the master doesn't dare to be a master, in Xia Wu Bing, he is just a first-grade alchemist, with the cultivation of the marrow washing liquid you have refined, you should already be a second-grade alchemist!

"You have some self-knowledge, what exactly is identified in this marrow washing solution, but you say it's okay!" Mo Feiyu said with a smile.

Wu Bing smiled humbly and said:

"Then let's talk about it, this marrow washing liquid has an excellent effect on immortal cultivators below the fifth level of qi refining, and it can help monks break through the bottleneck of cultivation. It should be tempered with violet flowers and blue-leaved grass, and some kind of demon beast demon pill is added to it. And the method of condensing pills is extremely peculiar, and it is really impossible to see it below, and only alchemists above the second grade can refine it. ”

After listening to Wu Bing's analysis, Mo Feiyu nodded slightly, the refining method of the pill is the secret of every alchemist, how the marrow washing liquid is refined, Mo Feiyu naturally won't say, he continued to ask:

"Then how did you guess that I was an alchemist?"

Wu Bing smiled and said:

"I'm not afraid of Young Master Mo's jokes, when you were selling the marrow washing liquid yesterday, you claimed that it was refined by Master Luo of Fuyun Mountain, and Shopkeeper Yun also told me. Master Naluo is the master below, and when I saw this bottle of marrow washing liquid, I knew that it was definitely not refined by my master. ”

At this time, Mo Feiyu finally understood something, no wonder Concubine Yun wanted to protect herself, it turned out that the other party felt that she was a second-grade alchemist.

Mo Feiyu nodded slightly and said:

"Well, I understand, in that case, Your Excellency will bring the cloud shopkeeper!"

At this moment, Concubine Yun's slightly coquettish voice came from the door:

"Don't look for it, I'm not here! Brother Xiao Yu, I knew you would take the initiative to come to me!"

Seeing Concubine Yun coming, Wu Bing smiled at Mo Feiyu very interestingly, stood up and walked out of the room.

At this time, there were only two people left in the room, Concubine Yun and Mo Feiyu, and the atmosphere was a little indescribable.

Mo Feiyu was still sitting on the chair, and said with a slight smile:

"What does the cloud shopkeeper want me to do, let's say it!"

Concubine Yun chuckled and said:

"Brother Xiao Yu, you really see the outside, didn't I say it, call me Sister Yun. ”

As she spoke, Concubine Yun walked directly to Mo Feiyu's side, raised her hand and pinched Mo Feiyu's shoulder.

Mo Feiyu only felt a tingling sensation on his shoulders, and his heart suddenly felt a little uneasy. Mo Feiyu frowned slightly, hurriedly ran the Northern Immortal Refining Divine Technique to stabilize his body and mind, and said calmly:

"That's it, I'll call you Concubine Yun!"

"Hey, that's right!" Concubine Yun smiled slightly and continued:

"Since you've found it, let's open the skylight and say something. It's up to you to refine the marrow washing solution, and our Wanbaolou is responsible for providing raw materials and selling the marrow washing solution, and you have three spirit stones and seven spirit stones, what do you think?"

Hearing this, Mo Feiyu couldn't help frowning slightly, and laughed:

"What a joke, but I refined the marrow washing liquid, and only let me divide it into three layers, you are too greedy for money!"

At this time, Concubine Yun's hand on Mo Feiyu's shoulder suddenly increased her strength, and she said slowly:

"Brother Xiao Yu, don't forget, Wanbaolou also chose to protect you, I invited the three elders of the outer gate to come as a descendant of the Yun family, so as to block the Chen family's revenge, otherwise, do you think you can sit here and talk to me now?"

Mo Feiyu thought for a moment and said:

"You chose to protect me, I naturally remember this favor, but I, Mo Feiyu, have never liked to be favored, what do you think of our transaction content being changed?"

Concubine Yun was also very interested in Mo Feiyu's words, she turned around and sat on the chair next to her, and said:

"Yesterday I invited you to be my guest elder of Wanbao Building, if you change your mind now, it's not too late. ”

Mo Feiyu smiled disdainfully and said:

"Elder Keqing, forget it, but if you take the initiative to choose to protect me, I can't be too stingy. In this way, I will hand over the refining method of the marrow washing solution to you, and you will be responsible for refining and selling the marrow washing solution, but I will still take three layers of the spirit stones obtained. ”

For Mo Feiyu, the most important thing was cultivation, and he naturally didn't want to waste his time refining the marrow washing liquid. If this is the case, it is better to tell Wanbaolou directly about the refining method of the marrow washing liquid.

When Concubine Yun heard that there was such a good thing, she immediately stood up from her chair, looked at Mo Feiyu with charming eyes, and said:

"Are you telling the truth?"

Mo Feiyu nodded slightly and said:

"Of course, just the one named Wu Bing just now, the alchemy qualification is okay, I'll teach him the refining method of the marrow washing liquid when I go back, how about it?"

Wu Bing is just an ordinary first-grade alchemist, if he can really learn to refine the marrow washing liquid, it means that Wu Bing may advance to become a second-grade alchemist, if so, it will be of great help to Wanbaolou.

Concubine Yun covered her mouth and giggled, and said:

"Well, that's great!"

Seeing Concubine Yun's expression of making a lot of money, Mo Feiyu smiled slightly and said:

"But let's talk about the ugly words first, I taught Wu Bing to refine the marrow washing liquid, and the favor of Wanbaolou will be paid off. ”

Concubine Yun also smiled heartily and said:

"Okay, deal!"

Concubine Yun's heart was obviously extremely excited, she was very glad that she had made the choice to protect Mo Feiyu, and at present, this choice was absolutely correct.

Next, the two of them continued to discuss the refining and sale of the marrow washing liquid, and after Mo Feiyu felt that there was no problem, Concubine Yun brought Wu Bing over.

Hearing that Mo Feiyu was going to teach him how to refine the marrow washing liquid, Wu Bing was so excited that he couldn't speak for a while, and he couldn't stop bowing to Mo Feiyu.

For an alchemist, it is too difficult to upgrade every grade, and Wu Bing, who has been immersed in the Dan Dao for many years, has a deep understanding.

Mo Feiyu promised to teach him to refine the marrow washing liquid, which undoubtedly promised to help him improve his alchemy strength and gave him a chance to advance to a second-grade alchemist.

Two hours later, Mo Feiyu successfully taught Wu Bing the refining method of the marrow washing liquid, and under the eyes of Concubine Yun, he walked out of the gate of Wanbao Tower with a smile.