After speaking, Yu Xing calmly took out a jade talisman from his arms, and then put the jade talisman on the ground in front of him through the wall of light.

At this time, Leng Yan's red-clothed disciple stretched out his hand to the wall of light, and a palm-sized round hole appeared out of thin air.

The other red-clothed man who had never spoken before made a slight move of his hand, and as a result, the jade talisman of Yu Xing automatically flew to his hand through the small hole as if it had wings.

"Senior Brother Ma is your guarantor?" After reading the jade talisman, the red-clothed man opened his mouth with some surprise.

Yu Xing nodded slightly, but his eyebrows were slightly raised, he almost knew the strength of the disciples in the valley, ordinary thirteen layers, he was confident that ten might not be his opponents, but the monk in front of him, who had just built a foundation, gave him a lot of pressure.

Unless it is a battle of life and death, Yu Xing really doesn't have much confidence that he can defeat the other party.

The gap between refining gas and building a foundation is really big.

Yu Xing sighed in his heart, but he had his own thoughts, he did have a Zhuji Dan, and he came with an immortal ascension order, so he could naturally get one, but he was injured on the night of the first day, and Yu Xing pretended to swallow and failed to break through, in fact, Yu Xing was ready to wait for all his five elements of kung fu to cultivate to the thirteenth layer, and build a perfect foundation.

"Is it Senior Brother Ma who is obsessed with alchemy all day long?" The red-clothed disciple next to him was also surprised.

"Isn't it, he's going to vouch for people too? What an astonishment! You can't be his own disciple or nephew or something, right? After holding the jade talisman and confirming it several times, the red-clothed man became a little curious.

"No, the junior is just taking care of the medicine garden for Uncle Ma, but for the sake of this token, the disciple has also promised to take care of the garden for free for one year!" Yu Xing didn't dare to slack off at this time, and hurriedly replied respectfully, but there was a wry smile on his face.

In fact, at the beginning, when Yu Xing made the formula idea, he thought of this Uncle Ma. Because since the little old man has planted so many medicinal herbs, he must be very interested in alchemy, and the formula of the elixir in his hand must be indispensable! Therefore, a few months ago, when the little old man came to get the medicinal materials, Yu Xing mentioned it slightly.

As a result, what made Yu Xing dumbfounded was that as soon as the little old man heard this, he immediately shook his head like a drum, and said that he would not agree to anything. According to this Master Ma, the recipes in his hands have all been improved by him, an alchemy master, who has experienced countless failures, how can he give them casually, this is absolutely impossible!

But when Yu Xing bitterly explained that he only needed those original recipes that had not been changed, the little old man rolled his eyes, and impatiently told Yu Xing to simply go to Yuelu Hall to find it himself, why bother his old man so much! In this way, Yu Xing had to pay the price of a year's day work, in exchange for the little old man's guarantee token, so that today's trip to Yuelu Hall was made.

"Huh! So that's the case, I thought the rumored Senior Brother Ma had suddenly changed his character! When the two men in red heard this, they looked at each other and smiled, and the one holding the jade talisman said with a smile.

"Alright, come in!"

The two red-clothed men simultaneously played a magic battle on the wall of light, and as a result, the wall of light was forced to open a passage that was a few feet wide, just enough to accommodate one person to enter and exit.

Yu Xing thanked him, took back his jade talisman, and walked in. What appeared in front of me was a bare mountain, and there were no buildings except for a small circular circle!

"This is a teleportation array, and every time you use it, you need a low-level spirit stone, but the first time Senior Brother Yu came, he didn't need it." One of the red-clothed men explained, and then he skillfully shot a red light into the magic circle, and then several spirit stones inlaid in the entire magic circle lit up.

Yu Xing nodded, stepped into the circle, and immediately felt a whirlwind of the sky, and the surrounding scenery was blurred. Then, with a flash of brilliance in front of him, the remnants of the torturers came to a strange hall, and at their feet stood a magic circle exactly the same as just now.

"This is the teleportation array, the way of space, something interesting." Yu Xing was not too surprised, in the dragon plane, there is even a bug like time zero.

The remaining sentences are large and come forward. The hall in front is very peculiar, it is a cylindrical super large room, the diameter of the left and right is about 30 zhang, the height is also four or five zhang high, and the surrounding bluestone wall is inlaid with light red crystal, and there is a thin layer of white sand on the ground, which makes the whole hall appear clean and tidy.

There are three passages evenly distributed around the hall, two of which are engraved with the word "Qi" and one "Dan" in ancient script, respectively, and the last passage is empty, and there is no sign nearby.

Yu Xing went straight to the passage with the word Dan written on it.

The passage was not long, and after a dozen steps, a slightly larger room appeared at the end of the passage. There was a long table in the room, and an old man with a red face stood at the table, smiling at Yu Xing.

Behind the table were several dilapidated shelves that stood against the wall, filled with all kinds of furnaces, raw materials, and strange miscellaneous items that Yu Xing had never heard of.

"The younger generation wants to find some formulas and books related to pills, and wants to study the way of alchemy." Yu Xing hugged his fists at the old man and asked.

"The recipe and the book for alchemy? Go up this staircase! The old man pointed with a finger, and a magic battle came out, and in the open space behind him and between the shelves, a stone staircase leading to the roof appeared out of thin air.

"Looking at the collection of books on the second floor, one hour charges a low-grade spirit stone, and it is not allowed to take the original out of here, if you want to copy the content, you need to pay another copy fee of ten spirit stones per copy."

The old man added.

The corners of Yu Xing's mouth twitched, but he didn't care, he had the ability to never forget, threw a low-level spirit stone with his hand, and then walked towards the second floor.

On the second floor, there were only two black bookshelves, a dirty table, and a broken chair. That's all the belongings in this house. Of course, there were still twenty or thirty yellowed old books on the shelf, and there were also a few bundles of tattered bamboo slips on the table, and two jade tubes that could no longer be seen in their original color.

This shabby appearance is a little different from what Yu Xing imagined, but he doesn't care about so much, he sits down casually, and he doesn't care if it's a book about alchemy, anyway, he can never forget it, and it looks quite fast.

Even if you can finish reading a book every few dozen breaths, these books can be collected here, all of them have their own unique places, either peerless medical skills, or some strange cultivation methods.

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