It turns out that this five-character represents the meaning of the fifth-order alchemist, the fifth-order alchemist at least has the cultivation of the out-of-body period, and the bookshelf here can only be taken down by the fifth-order alchemist.

The scrolls of the Danjing Pavilion have been classified in detail, and the disciples who are not in place in alchemy skills are strictly restricted. Only alchemy books that are in line with one's own cultivation are worth viewing, and other high-level Dan scriptures cannot be understood after reading them, so there is no need to consult them.

Mu Yu shrugged his shoulders and pulled him down without showing it, he was not uncommon. But it was better not to show him a long insight, he wanted to walk towards the bookshelf marked six, but as soon as he took a step, suddenly the surroundings seemed to change a scene, all the light disappeared, a huge force pushed him away, he took a few steps back, and the surroundings returned to their original appearance.

This is a guardian formation, needless to say, he doesn't even have the qualifications to look at the cover of the sixth-order Danjing. Mu Yu muttered the words "This sect is really stingy", and then asked, "Senior, where is the Dan Sutra of "Speed Dan"?"

Deadwood specially explained that Mu Yu wanted to come to the Danjing Pavilion to find the Dan Sutra of "Speed Dan", and he said that only this Dan Sutra could allow Mu Yu to grasp the key points of alchemy in a short time.

"Another person who wanted to borrow "Sudan"? I threw this book away. The old man said impatiently.

"Throw it away, can you just throw away the books here? don't just give it to me! What a pity to throw it away!" Mu Yu said in shock.

"If you don't study well at a young age, you just want to take a shortcut, how can you take a shortcut in alchemy? This kind of book should have been destroyed a long time ago, so that you impetuous juniors always want to become an alchemy master overnight, and you are unwilling to cultivate and study in a down-to-earth manner. When the old man said this, his tone became very dissatisfied.

Mu Yu really wanted to take a shortcut, Deadwood told him that the Dan Sutra "Speed Dan" could allow him to quickly master the alchemy technique, but he didn't tell Mu Yu what was the harm of quickly mastering the alchemy technique, maybe in Deadwood's opinion, Mu Yu didn't need to become an alchemist at all, so he didn't have to think about these disadvantages.

"The seniors can tell the juniors, is there any harm in this "Sudan"? Mu Yu walked back to the old man and said respectfully. This old man looks like an ordinary old man, but Mu Yu doesn't naively treat him as a simple janitor.

The old man of the pavilion raised his head, examined Mu Yu, and asked sharply, "Who are you a new disciple?" The disciples who can be allowed to enter here are all gifted, why do you have such opportunistic thoughts?"

Mu Yu couldn't see the depth of the old man in front of him clearly, but his intuition told him that this old man's cultivation must be good, he didn't hold it up, and said respectfully: "The younger generation has no intention of being opportunistic, the younger generation is just curious, since this Danjing will make people slack, then why is it accepted into the Danjing Pavilion?"

Because the person who created this Dan Sutra was the ancestor who was once called Danzu, his alchemy skills have reached the point of being superb, and in his later years, he briefly summarized his life's alchemy experience as the Dan Sutra of "Speed Dan". This Dan Sutra originally condensed the hard work of the ancestor in his life, but it is a pity that the younger generations have not studied the real way of alchemy, and everyone sees that it is a shortcut to become an alchemy master in a short time. Once you follow the methods introduced above, you can easily refine a third-order pill or even a fourth-order pill, but you can no longer refine a higher-order pill, and your cultivation will never be able to take a step forward. ”

The old man who guarded the pavilion explained in detail, his tone was very stern, and he listed all the disadvantages of "Speed Dan", just to make Mu Yu break off the idea of looking for "Speed Dan".

Such an evil door!

Since it is an alchemy method created by the ancestor, its existence will inevitably be valued by future generations, but it is a pity that no one can destroy the intention of the ancestor to create this Dan Sutra. After all, after using and learning "Speed Dan", you can't make your cultivation go further, and the price is too great.

What kind of thoughts did the dead wood have for Mu Yu to come to this Dan Sutra?

Mu Yu was very depressed in his heart, could it be that Deadwood really planned to sacrifice Mu Yu's cultivation for his ulterior purposes, and was willing to let Mu Yu stay in the Yuan Infant Period for the rest of his life? If it weren't for Mu Yu's understanding of Deadwood's strange old man's temperament, and simply relying on his method of playing poison, maybe he would really think so.

But Mu Yu knew that Deadwood was not this kind of person, although Deadwood was not a benevolent person, but at least he was upright and would not do this kind of thing to Mu Yu. Besides, he came to Mu Yu just to pass on what he had learned all his life, if Mu Yu's cultivation couldn't go further, then who would pass on his mantle?

"So far, only one person has figured out the true cultivation method of "Speed Dan", but it's a pity that the dead wood kid didn't cultivate well, and he didn't want to say what he understood and left the Danding faction, if I met him, I would have to clean up and beat out what he understood. The old man who guarded the pavilion said hatefully.

"Deadwood?"

Mu Yu's heart lit up, Deadwood figured out the cultivation method of "Speed Dan"? That's why he let himself come here to find this Dan Sutra, it turned out that he had already planned, and Deadwood must have a way to avoid the disadvantages brought by "Speed Dan".

"Don't hide it from the seniors, the master of the younger generation is the dead wood evergreen, and this time he asked me to find this Dan Sutra. Mu Yu said.

"What? You said that bastard boy is back? Damn! Beat him up!" As soon as the old man in the pavilion heard Mu Yu's words, he immediately stood up, stepped out, disappeared into the void, and disappeared.

"So simply? He won't break the old man's leg, right?" Mu Yu swallowed, he hesitated to run back to report the news, but then he thought that at this time, it was estimated that the old man who was guarding the pavilion had already arrived, and it was too late for him to go back.

The old man who guarded the pavilion didn't look like a vulture like Shi Dengtian, and when he talked about Deadwood, he hated iron and steel, and his seniority was amazingly big, and he even called Deadwood a "bastard boy", which must be a generation older than Deadwood. Mu Yu snickered, because Deadwood often scolded himself as a "bastard", and he had to jump out at least thirty times a day, and it was really rare for a guy like him to be a withdrawn stammer and not like to talk so many times. Then I thought about it, I laughed at myself, what's so funny about being scolded as a bastard?

The old man who guards the pavilion shouldn't really do anything about the dead wood, so don't worry about it.

Before Mu Yu could ask where the "Speed Dan" was, the other party was gone, he shook his head helplessly, thinking that since this Dan Sutra was left by the ancestor master, it would definitely not be thrown away as the old man Shouge said, it is estimated that he is squatting in a dark corner, and he should try his luck casually!

Luck with a ghost!

The Danjing Pavilion adds up to no less than 100,000 Danjing, in the end it is an alchemy faction, how many outstanding alchemists have been produced here, and each alchemist can record a little experience, and they can reach the sky. Mu Yu looked at the rows of bookshelves, if this was to find one by one, how could an hour be enough! Mu Yu couldn't help but think badly that the old man in the pavilion would beat the dead wood for a while, and he would have more time.

Mu Yu started looking for the first-order bookshelf, and it took a quarter of an hour to reach the end, but he found nothing, and then turned to the second-order bookshelf, but still didn't find it.

"The Codex of the Burning Sun Dao is not, neither is the Qiu Tian Testament, these Dan Sutras are suitable for third-order alchemists, and it is useless to give them to me. Mu Yu looked at it, and when he reached the end, he saw a door with the words "Bancheng Dan" written on it.

"What is a half-Cheng Dan? Who is full and only half-refining alchemy?" Mu Yu was a little curious, he tried to push the door, and found that the door was unlocked, so he cautiously walked in.

It was a small cubicle, a little dim inside, and there were glowing night pearls on the walls, so that one could barely see what was in front of them. There are three-legged dandings distributed in the compartment, about the size of a chair, each danding looks simple and heavy, exuding strange spiritual power fluctuations from time to time.

When Mu Yu got closer, he found that there was an elixir of different colors suspended in each pill, and there were some herbal juices or powders floating around the pill. Mu Yu saw some words engraved on Ding's body, detailing the situation of these half-formed pills.

"Returning to the original pill can make people's physical condition go back to twenty years ago. The old man has exhausted all his life's energy and failed to fuse the last step, he is really unwilling! I hope that the future life will be able to fuse the old man's Dan Fang to comfort the old man's spirit in the sky!"

Mu Yu looked at this trace, it was the thought left by a strong man who desperately wanted to successfully fuse the pill but failed in the end, and Mu Yu could even feel the alchemist's deep unwillingness and resentful spiritual power fluctuations from this trace.

The following words are the detailed recipes for recording Guiyuan Dan, including how many points of heat to add and what medicine to add, and how many points of heat fusion are clearly recorded. The reason why this Guiyuan Dan failed to complete the fusion was that the cinnamon grass and the willow mushroom in it were mutually exclusive, but these two were indispensable. Around the half-formed Guiyuan Dan floated around the last fusion of Yanagizhi, but unfortunately it was not fused successfully.

Mu Yu looked at the other Danding again, and found that every half-level pill here was an amazing pill, if it was successfully refined, it would definitely cause a sensation in the cultivation world, but it was a pity that the alchemists did not complete the last step, and many annotations were full of alchemists' unwilling emotions.

This compartment should be used to collect the half-level pills that were abandoned halfway through the last halfway of the amazing elixirs researched by the genius alchemists of the Danding Sect, and these pills have a special ability to preserve the activity of the pills, so that the pills can be stored at a certain stage for a long time, and will not be eroded by the years and cause the loss of medicinal power.

"The person who invented this elixir was a genius. Xiao Shuai has been stopping next to the Danding of Guiyuan Dan, looking at those recipes in detail.

Mu Yu agreed with Xiao Shuai's words, although he was not familiar with these formulas and did not have Xiao Shuai's natural sensitivity, but he knew what it meant to return his physical condition to twenty years ago.

Guiyuan Dan is mainly for those who are about to die, many people are already in bad health when the time limit comes, and the Yanmei Pill only stimulates the vitality of the heart, and will not cure other diseases in the body.

And if you let the body go back to 20 years ago, it is equivalent to adding 20 years of life for no reason, and according to the records of the elixir, the effect of this elixir can theoretically return people to the state of 20 years ago on the basis of not losing the existing quenching effect, which means that any beneficial measures you have imposed on the body in the past 20 years will be retained.

"Ryuzhi and Guicao are mutually exclusive, how do I think I can complete the fusion of this Guiyuan Dan?" Mu Yu returned to the Guiyuan Dan, and the person who invented the Guiyuan Dan was named Jiuyang Daoren, and he couldn't let Liuzhi and Guicao fuse, which was the reason for his failure.

"Just you, someone who doesn't even have the qualifications of an alchemist?" a discordant voice sounded in the doorway.