There were tens of millions of Gu. Not only was it difficult to find out what Gu the other party had placed, it was even harder to dispel.

Or they could find the Gu man and kill it, and that would also break the connection with the Gu. Then, they could use pills to expel the Gu from their body, and the other type would be to detect the type of Gu, and then treat it and kill it!

Furthermore, this Gu, which was domesticated with spirit energy, was supposed to be even more tyrannical. Zi Lingxue could even hear a hint of worry in Dan Ying's voice, and this was the first time she had seen it.

"Teacher, what is a Gu Master?"

Zi Lingxue was a little shocked hearing this.

Dan Ying seemed to be considering what to say. Only after a long while did she slowly explain to Zi Lingxue.

"Actually, in the ancient times, there were many capable people who fought hard. Alchemists, formation masters, weapons craftsmen, summoners …" "Wait a minute, it even spawned a lot of sub-schools, and this Gu Master is the combination of an alchemist and a summoner."

"The requirements to become a Gu Master are even more harsh than those for an alchemist." And most importantly, the process of becoming a Gu Master is extremely painful! "

"Pain?" Zi Lingxue was suspicious.

"Un, it is pain." Dan Ying couldn't help but break out in a cold sweat when she thought back to the growth of a Gu Master, "A Gu Master is considered evil in ancient times, not only because of the insect plague, the most important thing is how to nurture a Gu Master!"

"A Gu Master isn't an ordinary method of cultivation, and there's no need to grab it from the ground. The only way for them to grow and advance is to devour Gu worms!"

"In other words, the body of a Gu Master is made from a pile of Gu worms!"

Dan Ying sighed, "The stronger the Gu Masters are, the more Gu they will devour, the stronger the pain will be, so in the end, those famous Gu Masters would feel their hearts warp, working extremely hard!"

"And the Gu Master faction, they were once surrounded and annihilated by the Human God in ancient times, they have already disappeared for a long time. I never expected them to appear in Xi Huan!"

Devouring Gu worm!

Zi Lingxue's black eyes instantly widened, and his heart sank. Other people would die from the pain from getting hit by the Gu, but these Gu Masters actually took the initiative to swallow the Gu worm to raise their own level. Of course, after going through the Gu's torture, they would also experience a leap in their own spiritual energy!

A high level Gu Master's body was refined by Gu worms in the end, the Hundred Gu wouldn't invade.

If he wanted to hurt others, he would have to injure himself first.

This was completely refining his body into a Gu!

How insane!

"Teacher, do you know anything about Gu arts?"

Zi Lingxue suddenly found it difficult, since the Gu technique was so hard to solve, then Beiming Ao's disease must be a thorny problem, and since Dan Ying was an alchemist, she probably knew a lot about alchemy.

But there were specializations in the field, and when faced with Gu techniques that were not involved, it was difficult for them to do the same!

"Although I have never trained in Gu arts before, judging from Beiming Ao's appearance, he shouldn't have reached the peak of Gu arts yet, I can probably cure him."

"Just like when a demon rises a foot high, since the Gu technique is separated from the alchemist faction, it will naturally remain the same. Moreover, when your strength reaches an absolute level, you can solve the problem across classes!"

Zi Lingxue nodded in realization, the admiration in her heart for Dan Ying increased by a few points.

Dan Ying muttered to herself for a moment, then explained to Zi Lingxue the method to remove the Gu worm. It was the same method as what Zi Lingxue knew, which two.

"The first method is simple, but it requires Bei Mingjue's cooperation to search for the person who placed the parasite in Xi Huan. This way, it would take time and manpower, and without knowing the identity of the other party, it would bring about a fatal disaster. The second method will require some effort, and the success rate will be greatly reduced as well. I am not 100% confident, but I am still 80% confident. "

Dan Ying had always been proud of her talent in alchemy, and had now recovered the strength of the Pill King, but facing only Gu worms, she was not that simple, so he did not say that she was 100% sure.

"Lingxue, what's your choice?"

No matter which method it was, they were all thorny. Moreover, Zi Lingxue only wanted to get her Red Jade Ganoderma and refine pills for Zi Yehui. She didn't want to be involved in Xi Huan's internal conflict.

"Teacher, let's choose the second method!"

Dan Ying nodded her head, he had long thought that Zi Lingxue would make such a choice, "You should explain the situation to the Seventh Prince. Right now, I only know that Beiming Ao has been infected by the parasite, but as for the specifics, I need to personally investigate them."

, who was at the side, was on the other hand anxious. Looking at Zi Lingxue's lowered eyes and silence, she thought, Could it be that royal father's sickness, was actually caused by Zi Lingxue, this genuine alchemist?

"Lady Zi?" Bei Mingjue could not resist asking.

Zi Lingxue withdrew her distant thoughts, frowned as she looked at Bei Mingjue, "Seventh Prince, I need to further inspect the emperor's illness, and I can't give you an answer right now."

This was the result of Zi Lingxue and Dan Ying's discussion. Leave something out, you cannot speak too slowly, or else if something unexpected happens, then you won't be able to step down.

Bei Mingjue's sword-like eyebrows slightly furrowed, then her gaze fell upon Beiming Ao who was lying on the bed. Other than believing in Zi Lingxue, he had no other choice.

"Alright!"

Bei Mingjue replied with a single word.

"I need a quiet space. I don't want to be disturbed while I check."

Zi Lingxue's words greatly disappointed those who initially wanted to see Zi Lingxue refine pills and take the opportunity to learn it.

It seems like he won't be able to steal a teacher …

"All of you leave. The palace maids and eunuchs that serve you all leave as well. Without Miss Zi's permission, no one is allowed to enter! "Kill those who disobey!" Bei Mingjue looked at Zi Lingxue, "I wonder if Miss Zi still needs anything else."

Zi Lingxue shook her head, "I need to once again thoroughly examine the emperor's condition. After I determine what kind of medicinal formula I want to use, I need all of you to provide me with medicinal ingredients!"

"Of course!" Bei Mingjue brought everyone and left with perturbed feelings.

Zi Lingxue seized the opportunity to call Gong Wuyou to her side, because right now, Gong Wuyou's spirit energy level was only second to his!

"You two, stand guard outside. No matter what, do not let anyone come in and disturb me!"

Gong Wuyou solemnly nodded his head.

Seeing that everyone had left, and that there were still people guarding outside, Zi Lingxue was finally relieved. Dan Ying also came out from her totem, sat beside Beiming Ao and frowned.

"Silver Needles …"

Zi Lingxue immediately handed it over.

Dan Ying used her silver needles to stab Beiming Ao's body, and black blood instantly flowed out from the acupuncture points that had been pierced.

Dan Ying took a whiff, and her eyes darkened, "It's actually the Spirit Erosion Gu!"