The hall Han Li was in was very peculiar, it was a cylindrical super large room, with a diameter of about thirty zhang on the left and right, and a height of four or five zhang high, and the surrounding blue stone walls were inlaid with pale red crystals, and there was a thin layer of white sand on the ground, making the entire hall look clean and tidy.

But if someone looks up, they will be stunned to find that the roof of this hall is actually upside down with white milk pillars, and densely packed everywhere, this is actually a rare stalactite cave, this place has only been slightly transformed to form the current appearance.

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.

At this time, the hall was empty, and after Han Li glanced at it, he hesitated a little and walked towards the passage engraved with the word Dan.

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 this room, and there was an old man with a red face standing beside the table, looking at Han Li with a grin.

Behind the table, however, were several dilapidated shelves that stood against the wall, filled with all sorts of furnaces, raw materials, and strange miscellaneous items that Han Li had never heard of.

Before Han Li could speak, the old man smiled and opened his mouth first: "This little friend, look at your face, it's the first time you've come here! Now in this ghost place, there are fewer and fewer newcomers coming! The old man has long been tired of all those dead-faced guys, it's great to have a younger newcomer come here!" the old man shook his head and said, his face was quite improper.

However, Han Li had already sensed that the Heavenly Eye Technique had no effect on this old man, and he couldn't see the depth of the other party, which showed that the old man was also a master of the foundation building period, how dare he slack off!

So, he hurriedly saluted and said, "The junior has seen the senior uncle, the junior nephew is indeed the first time to come to the Yuelu Palace, and I also ask the senior uncle for some advice!" Han Li lowered his posture.

"If there's anything you don't understand here, just ask. In addition, my surname is Xu, and you can call me Uncle Xu or Old Xu. Don't want any long and short teachers, the old man doesn't like to hear this!" The old man hurriedly corrected Han Li's title for himself, and seemed to care very much about it.

"That'...... , the junior obeys the order!" Han Li hesitated for a moment, then agreed indifferently, feeling that the other party was really a little weird.

"That's right, now let's talk about the purpose of this. The old man surnamed Xu said with satisfaction.

"The younger generation wants to find some formulas and books related to the elixir, and wants to study the way of alchemy. Han Li tried his best to make his words appear tactful and roundabout, not wanting to attract this person's attention.

"The recipe and book for alchemy, just go up this staircase!" To Han Li's surprise, the old man didn't have any intention of asking him, and after he casually took out a black token and issued a Dao Law Decision, a stone staircase leading to the roof appeared out of thin air in the open space behind him and between the shelves.

Han Li was overjoyed, and hurriedly walked to the vicinity of the stairs, and was about to move, but this old man suddenly showed a cunning expression.

"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. ”

Before Han Li could step on the staircase, Xu Lao, who was already behind him, said the relevant regulations unhurriedly, causing Han Li's figure to stagnate, and he almost wanted to scold.

Not to mention the cost of copying ten low-level spirit stones, even the browsing cost of one spirit stone in an hour will also make many shy disciples stop at it.

You must know that a low-level disciple can only earn twenty or thirty spirit stones through various jobs in a year! Counting the daily consumption and expenses of various cultivation, the spirit stones that can actually be saved are only a few pieces.

Therefore, this kind of charge from the other party was definitely very black-hearted! Han Li's senses for this old man immediately turned a hundred and eighty degrees, what a big profiteer!

Although there was a strange look on Han Li's face, he didn't stop any longer because of the old man's words, but instead threw it back without looking back, a low-level spirit stone was thrown into the old man's hand, and he quickly climbed to the second floor.

"It's funny! I wasn't intimidated by such a charge, it seems that I am still a small rich man. Hehe, it looks like another small fortune can be made!" This self-proclaimed Uncle Xu, seeing Han Li's bold action of going upstairs, couldn't help but narrow his happy eyes into a crescent moon, and rubbed the spirit stone on the corner of his clothes a few times, and then put it in front of his eyes to take a closer look, and the face of an iron rooster was undoubtedly exposed, which was completely different from the approachable expression he saw at the beginning.

At this time, Han Li forcibly suppressed the depression in his heart and calmed down his mood a little before he carefully looked at the things on the second floor.

Completely different from the large and bright room he imagined, with countless books, bamboo slips and other items crammed into the big room, although the house on the second floor is not small, but the things placed there are really pitiful.

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.

"It's so shabby? Isn't it in the wrong place, where is this the secret library of the great sect of cultivating immortals! It is clearly a dilapidated bookstore of a poor talent. Han Li was immediately struck by the scene inside the house. If it weren't for Xu Lao's unfathomable mana, he would almost have the urge to go downstairs immediately and grab the other party's collar and question him fiercely.

After taking a deep breath, Han Li calmly walked over to a bookshelf, then casually pulled out an old book and looked through it carefully.

"The five elements of heaven and earth, the five organs correspond, the golden needle piercing position, can transform the essence of the ......" He only read a few sentences at the beginning of this book, and he was immediately surprised, and couldn't help but close the book and look at the book cover.

The five huge words of "Fahrenheit Golden Needle Secret Technique" appeared in front of Han Li's eyes.

Han Li's face was ugly. It's not that this book is bad, the content recorded in this book is indeed a rare secret method of golden needle treatment in the world, and even has the miraculous effect of reviving the dead and stimulating the potential of patients. But what does this golden needle technique have to do with alchemy? What annoyed him even more was that he had already read the book countless times from Dr. Mo, and he could even memorize it backwards. This is obviously a secular book of medicine, how can it appear here in a grand manner?

A series of questions appeared in Han Li's mind, causing him to frown, greatly puzzled. But when his eyes fell on the remaining books on the shelves, a more bad premonition enveloped his heart.

Han Li flipped through the remaining old books one by one. Whenever a book was finished, the gloomy look on his face deepened a little, and when he even glanced at all the books on the other shelf, the expression on Han Li's face was as black as it had been before the storm.

None of these twenty or so books are books of alchemy, either secret techniques for curing diseases and saving people, or home remedies for strange and incurable diseases. The most bizarre thing is that there is also a self-described poison scripture by a master of poisoning, all of which are books used in the secular world.

"The hour has come, and if you look at it again, you will have to add another spirit stone!" Suddenly, that old Xu shouted downstairs.

Hearing this, Han Li was a little speechless, just like this pile of garbage books, he also wanted to collect spirit stones, but when his eyes turned to the items on the table, he still took out another spirit stone from his body and went down from the staircase.

"The spirit stone has been received, Xiaoyou continue to watch, the old man will not bother!" Xu Lao, who was downstairs, said with a smile.

Han Li didn't pay any attention to the old man, because he knew very well that for the undisguised other party, it didn't matter if he was respectful to him or not, the important thing was that he could take out the spirit stone to continue to bring him benefits.

However, Han Li had no intention of throwing another spirit stone for nothing, so his action of flipping through the bamboo slips on the table this time was obviously much faster than just now, and he only needed to look at the general content, and no longer read it sentence by sentence in detail.

Under the soft white light of a huge moonstone on the roof, Han Li's expression flickered with joy and sunshine as several bundles of bamboo slips flipped. When he had finished turning over all the bamboo slips, Han Li piled them back in their place and sighed lightly.

This time, the recipes for several pills and some dispensing tips recorded on these bamboo slips are really true. But it's a pity that judging from the composition of these elixirs, these kinds of elixirs are all elixirs with similar effects to Han Li's "Yellow Dragon Pill" and "Golden Pulp Pill", and they have no effect on Han Li, who has now reached the eleventh layer of Changchun Gong.

In this way, Han Li's only hope was pinned on those two fist-sized jade cylinders, hoping that what was recorded inside would not allow him to return empty-handed.