I am in the world of immortal cultivation

Qin Shu was silent because she forgot to ask in advance. Her master is usually either in retreat or preparing for retreat. She has been in the sect for nine years and has never seen him.

Just when Qin Shu was standing in front of Master Lingxu's door, taking out the jade slip with a confused look on her face, wanting to see who else she could ask, suddenly... the stone door opened.

Qin Shu came back to her senses reflexively. When she saw the figure coming out, the joy on her face could no longer be suppressed.

Qin Shu hurriedly ran over, tears filling her eyes with excitement, "Master! You have figured it out. This disciple misses you!"

Master Lingxu chuckled lightly and glanced at Qin Shu, as if he had seen through her.

"Really miss me? Are you sure you didn't come to see me for trouble?" Master Lingxu asked.

Qin Shu coughed lightly and bowed respectfully, "It's true that I miss Master, and it's true that I have something to do with Master."

Master Lingxu looked as if this was indeed the case, but he still followed Qin Shu's words and asked, "Why do you want to be your master?"

Qin Shu quickly handed over the porcelain bottle in her hand, "Master, take a look at this."

Master Ling Xu glanced at the porcelain bottle in her hand, raised his hand to take it, and asked, "What is this?"

Qin Shu quickly said: "Master, I want to know what ingredients are in this bottle of ink."

Master Lingxu glanced at her and uttered four words, "Not good at academics."

Qin Shu smiled and said, "Master, please help me clarify my doubts."

Master Lingxu did not embarrass her. He nodded and was about to uncork the bottle when he suddenly thought of something and stopped what he was doing and said, "Let's talk after we go in."

Seeing Master Lingxu turn around and enter the door, Qin Shu quickly followed, and the stone door of the cave was closed again behind them.

Master Lingxu sat down on the simple stone bed. There was a huge alchemy furnace on the ground beside him. It was taller than Qin Shu now and was something Qin Shu had never seen before.

There was also a faint fragrance of red dandelion floating on it, and Qin Shu wrinkled her nose and took a deep breath.

She felt that her whole body and mind had been purified, but she still couldn't smell what kind of elixir it was.

It was probably some high-level elixir that was beyond her scope of knowledge.

Master Lingxu uncorked the bottle, sniffed it lightly, and then frowned.

He raised his eyes and looked at the disciple standing in front of him, and asked: "Shu'er, where did you get this thing?"

Qin Shu sighed, "In order to get this thing, I spent a lot of effort to get such a small amount from others."

Upon hearing this, Master Lingxu's expression suddenly became more solemn, and then asked: "What do you want this thing for? This thing is somewhat evil and should not belong to a righteous monk."

Qin Shu nodded, "Disciple also guessed it."

The ink itself is used to draw the formation for extracting spiritual roots, and according to He Xin, corpse oil is also added to the ink...

Which righteous monk would use this?

"But... the formation that the disciple wants to draw requires this. If you don't understand the ingredients, you won't be able to restore the original ink." Qin Shu frowned and said.

"Array?" Master Lingxu's face darkened, "Are you going to the Array Sect again?"

When Qin Shu heard that the old man's tone was wrong, she quickly waved her hand, "No, no, I just want to..."

She sighed, "It's a long story, and it involves some of my disciple's family background."

Originally, a master would not interfere with his disciples' personal affairs, not to mention that Qin Shu's family background was still a mortal matter.

But Master Lingxu was worried that Qin Shu had taken a detour. There was obviously something wrong with the ink. He was a good disciple with extraordinary talents and a smooth future.

If he let her go astray because he didn't take care of her for a moment, it would be a loss not only for their Lingxiao Peak, but also for the entire world of immortality.

"tell me the story."

Seeing Master Lingxu's expression of willingness to hear the details, Qin Shu also knew that Master could not escape this level, so after thinking about it for a moment, she decided to tell him.

"My brother in the family seems to have been snatched away. He drew a formation to replace my mother's spiritual root. Now that my mother has no spiritual root and her life is approaching, I must get her spiritual root back as soon as possible. This Ink is what is used to draw the formation, please help me, Master," Qin Shu prayed sincerely.

Master Lingxu's brows became more and more frowned, "Extracting spiritual roots? This... goes against the law of heaven!"

He was also worried that his little apprentice would be backlashed, and his expression fluctuated slightly.

Qin Shu shook her head, "I have asked Master Suihan, and he said it is okay. He said that there is a cause and effect between the disciple and the cheap brother. It is just to get the mother's spiritual root back, and there will not be much problem. And He also taught his disciples a way to avoid backlash, and now he just needs to draw the formation completely."

Master Lingxu thought for a moment, and finally nodded slightly, raised his eyes to look at her, and asked, "How much can you identify the smell here?"

Qin Shu said everything one by one, and Master Lingxu nodded again, "It's pretty much what I expected. The remaining two types are corpse oil and demon blood."

"Demon blood?" Qin Shu was a little surprised, "My disciple went to Nanxiang City a while ago and killed many demons. Why does it seem different?"

Master Lingxu chuckled, "The ordinary demons are naturally different. Only pure demons of the seventh level and above can have such evil demonic nature. After killing them, the resentment in their hearts will be dissolved." In the blood. Even if they die, their blood is extremely aggressive."

Qin Shu took a breath of air, no wonder she had never seen him before.

But soon she became confused again. Since the demons above level seven were so powerful, how did Qin Wuya get their blood?

Or... was it the demons behind him who helped him?

Deliberately sacrificing a high-level fellow just to cultivate a perfect weapon?

This makes sense.

But now where can she find a purebred demon of level seven or above? Even if she found one, she wouldn't be able to defeat a seventh-level demon with the same strength as the Transformation God...

Qin Shu frowned and thought for a long time, and was finally woken up by Master Lingxu again.

"Shu'er."

Qin Shu raised her head and looked at him, meeting the chaotic and wise expression of Master Lingxu.

"Master."

Master Lingxu's eyes softened, and he asked her again, "You know the ingredients of ink now, so... do you know the ratio of each of these materials?"

Qin Shu: "..."

I don't know, and the seventh-level demon blood is so precious that it really can't support her to conduct big data modeling experiments.