He calmed down a bit, and remembered Gu Yuan's words, it would be better to pay a visit to Elder Ling first. Elder Ling had previously said that he was going to retreat for three months, and he should be out of the retreat when the time was calculated.

Dantang is established in the center of the Immortal Xuanmen, it is the forbidden place of the Immortal Xuanmen, the disciples of the Qi training period can't get close at all, Qin Yu is holding Gu Yuan's jade talisman, and he understands the intention, the strange eyes of the disciples guarding the mountain make Qin Yu very uncomfortable, probably speculating about what the relationship between him and Gu Xianzi is.

"It's a misfortune that you've come to find Elder Ling! Elder is still in retreat, but the day of sunrise is only in these two days, if there is nothing urgent, you might as well come back in two days. ”

"Isn't the elder out yet......?"

At this moment, I heard a muffled sound in the belly of the mountain, and the earth trembled slightly, and then I heard a roar of rage.

"Ahh

"It seems that the elder has already been out of the customs, but I advise you to wait until his old man calms down before going to him, I'll go first!"

After saying this with a strange expression, the disciple guarding the mountain trotted into the house, and the disciple guarding the mountain actually escaped from the battle, and Elder Ling was not strict.

Qin Yu shrugged his shoulders and walked into the Dan Hall.

Dantang was very different from what he had imagined, the entrance turned out to be an incomparably huge cave, and when he walked inside, he smelled a pungent smell of medicine, as if he had entered a medicine shop.

In front of him were more than a dozen Dan furnaces of different sizes, the largest was more than three zhang high, and the smallest was only two feet high, but Elder Ling was nowhere to be seen.

He turned around for a while, and noticed that there was something unusual behind the largest Nadan furnace, and hurriedly said, "Elder Ling, the kid Qin Yu has come to pay a visit. ”

Ling Xian came out from behind the Dan furnace, his head was covered with dirt, his face was gray and black, Qin Yu almost didn't recognize it, he snorted lightly and walked out, only then did he notice that the robe on his body was already in tatters, and he could tear off a piece of it with a casual pull.

"Wait a moment, I'll go in and change my clothes. ”

Qin Yu smiled and nodded.

Ling Xian came out quickly, changed into a brand new robe, and combed his hair, and Qin Yu hurriedly greeted him again.

"Boy Qin Yu, meet the elders. ”

Ling Xian glanced at him and said, "The old man has just failed in alchemy, and he is in a bad mood, so if you have something to say, let it go!"

Qin Yu hurriedly told Gu Yuan what he had heard about washing the scriptures and cutting the marrow.

After listening to what he said, Ling Xian's eyes narrowed, and he said, "Yes, the old man is indeed developing a formula, maybe it has this effect, do you want to give it a try?"

Qin Yu was overjoyed and nodded.

"Yes, yes, but ...... The old man is still a little short of cold toad liquid, if there is no such toad liquid, I am afraid that the efficacy will be worse!"

"Well, isn't it true that the toad liquid that the elder needs in the past few years has been used here?"

"Of course, if not, what do you think I'm doing with those things? ”

Qin Yu pondered for a moment, gritted his teeth, and said, "If the elder really has this elixir, I am willing to provide a year's worth of toad liquid for free, how about it?"

"Well, that's it. Elder Ling's eyes flashed with a sly smile.

Ling Xian is extremely proficient in medicinal pharmacology, he can be described as a medicine idiot, most of the ancient pills can no longer be used, because at that time, many of the elixirs used in alchemy have been extinct in the cultivation realm, and the current pills are all improved by the alchemist through countless tests, but the medicinal effect is naturally not comparable to the ancient pills.

In ancient times, there were many more monks than now, because at that time, the elixir was sufficient, the effect of the elixir was good, and it was relatively easy to cultivate. It does sound like an exaggeration, but it also proves that the number of high-level monks at that time was far from comparable to what it is now.

You must know that now, a monk in the Dan period can become a high-level figure in each sect, and a monk in the Yuan Infant period has become a prince who can dominate one side.

There are many factors that cause this reason, such as the decline in the quality of the spiritual veins, the increasingly thin vitality of heaven and earth, the fact that the elixir has been picked up, etc., all of which lead to the fact that cultivation is now several times more difficult than it was at the beginning.

Alchemy is broad and profound, and alchemists need to have extremely high talents, so alchemists in the cultivation realm are very rare, and even if there are, most of them are low-level alchemists, Elder Ling, as one of the three major alchemists in Longxi, has a mind that takes the world as his own responsibility, so he improves the pill recipe over and over again, and strives to restore the former glory of the cultivation realm.

In any case, Ling Xian's spirit is commendable, and it still touches Qin Yu quite a lot.

"Qin boy, the pill of washing the marrow has been extremely precious since ancient times, and it has been extinct now, the old man once got half a pill for washing the marrow, after decades of research, countless attempts, but without success. ”

"Didn't work out, ...... you, Elder?"

"Listen to me first!" Ling Xian glanced at him with a deep face, and continued: "Although I didn't succeed, but in the process of alchemy, I found another way to find a possible way to wash the marrow, but let me make it clear first, this method is currently only my theory, and has not been actually operated, are you willing to be the first person to try?"

When Qin Yu heard this, he immediately fell into a thousand difficulties, it turned out that it was only in the theoretical stage, he thought for a long time and asked, "Elder, if it is completely successful, how long will it take?"

"It's hard to say, maybe three or five years, maybe thirty or fifty years, the worst...... It may not be possible to complete it in this life. ”

"This ......"

"At this point, Qin boy, if you don't do that try, you can do it yourself, I'll give you three days, and after three days, you come to me again." ”

"This kind of thing, the kid really needs to think about it, but Elder, is the method of trying you mentioned just simply taking pills?"

"Of course it's not so simple, you have to know that the legendary Cleansing Pill is to transform the body with the medicinal power of the elixir, simply put, from the inside out, the old man's way, from the outside to the inside, calls himself ...... The art of human pills!"

"The art of human pills?"

"That's right! In other words, I'm going to treat you as an elixir!

Hearing this, Qin Yu even had the urge to pull out his feet and leave, refining me as an elixir, would he still be able to live?

Ling Xian saw his worries and said: "This method is not too life-threatening, but what the side effects are, it is still unknown, so I asked you to think about it clearly, or that sentence, you go back, if you want to try, come back to me in three days!"

Qin Yu nodded and left in a trance.

In the glass cave, his mood couldn't be calmed down for a long time.

"Washing the marrow...... Washing the marrow ......"

If he really has the foundation building pill, he is very sure that he will be able to advance to the foundation building period, but after the foundation building period? How to go on the road? With the quality of his spiritual root, the more he goes forward, the more difficult it will be, he has not avenged his revenge, the road of cultivating immortals has just begun, and the poor quality of the spiritual root itself means that he has to put in more effort than others, if he retreats at this time, he does not know what difficulties he will encounter in the future.

"People will always face different choices in life, and it's time to make a choice!"