Outside the tea house, all was silent.

As soon as Xu Ruoyu's mocking words fell, Mr. Sun let out a light sigh.

This disciple of his had extraordinary talent and, given time, could surpass him in medical expertise. However, his temperament was too impulsive, always veiling the arrogance of youth.

Though Lingzhou was small, the person before him was ultimately an inspector of the Evil Extermination Bureau. How could he be easily offended?

Mr. Sun stepped forward and sternly reprimanded, "Ruoyu, do not be rude."

Upon hearing this, Xu Ruoyu slightly restrained himself, retreating behind his master, but his arrogant demeanor showed no reduction.

Qin An exchanged glances with the three golden inspectors, anger hidden within their eyes.

He did not speak, but pondered for a moment in his mind.

This elder's attitude was kind, not seeming to be feigned.

It was his disciple who was like a fearless, reckless youth.

Qi Chenfeng, the sword-wielding golden inspector, seeing no one else stepping forward, was the first to clasp his fist and say, "Old sir, we are ordered to protect you and your disciple."

To become a golden inspector, one needed not only extraordinary strength and courage but also the ability to navigate situations skillfully.

After all, sometimes it was necessary to maneuver between two groups of demons; how could one succeed without a little tact?

Therefore, everyone chose to ignore Xu Ruoyu's arrogance.

Mr. Sun cupped his hands and said, "Thank you, gentlemen. I will linger in Lingzhou for a few days; if I do not find what I need, I will depart."

Qi Chenfeng nodded slightly and said no more.

Du Yixing and the female golden inspector Bai Ruqi cast their eyes elsewhere.

Their duty was merely to ensure safety without unnecessary small talk.

If there was danger, they would eliminate it.

Mr. Sun understood the ways of the Evil Extermination Bureau well, so he spoke no more, instead asking, "Do you have a map of Lingzhou?"

Qi Chenfeng nodded, took a map from his chest, and handed it to Mr. Sun.

It was common for inspectors who often traveled the wilderness to carry maps.

Mr. Sun took the map, opened it, and looked carefully for a moment; his brow furrowed slightly, "The terrain in Lingzhou is so complex; it will be quite difficult to search."

Standing behind him, Xu Ruoyu craned his neck to take a glance and interjected, "Teacher, there are a few places where Jade Heart Grass might grow."

Jade Heart Grass?

Upon hearing this, Qin An's heart was stirred.

He was standing next to several golden inspectors, contemplating how to gain Mr. Sun's goodwill.

He never expected to hear the words Jade Heart Grass.

With his current ninth-level medical expertise and Gui Cang Realm medicinal talent, he had an expert understanding of various herbs.

The so-called Jade Heart Grass was the most effective herb for treating madness.

But such herbs were extremely hard to find.

Their growth environment was very specific, requiring places with a significant difference between day and night temperatures.

Even so, finding Jade Heart Grass was a matter of luck.

The key was that this herb could not be artificially cultivated.

The elder before him was clearly a physician who specifically visited various cities to find Jade Heart Grass, surely to treat an important figure.

Qin An stroked his chin, thinking, "Being a physician, I might use my profession to approach him."

He himself was in the medical profession, so he had a chance if he utilized his profession to approach.

But Qin An only thought about it and did not act recklessly, choosing instead to watch and see.

As Mr. Sun looked at the map, Du Yixing kept observing him, growing more astonished.

"Could you be... the Medicine King of Xunyang Prefecture?" Du Yixing hesitated for a moment and asked.

In his early years, he had traveled to Xunyang and had a brief encounter with Mr. Sun.

Before Mr. Sun could respond, Xu Ruoyu proudly declared,

"That's right, my master is indeed Mr. Sun." Xu Ruoyu said arrogantly, "Even the Xunyang Evil Extermination Bureau has to show respect."

Qi Chenfeng and Bai Ruqi did not know who Mr. Sun was, but hearing Xu Ruoyu say this, they felt Mr. Sun must be renowned in Xunyang Prefecture.

Qin An, of course, did not recognize him, but it didn't hinder his speculation.

"If this is the notable person mentioned by the central province, then his search for Jade Heart Grass is likely to treat someone even more distinguished."

He needed to showcase his abilities during this mission to resolve the matter of the Yang Elixir.

Therefore, any information was extremely important to Qin An.

Seeing everyone's reaction, Xu Ruoyu became even more complacent: "You rural villagers, not even recognizing my master, are you worthy of being golden inspectors?"

In his tone, that mocking color resurfaced once more.

As soon as these words were spoken, including Qin An, the four golden inspectors all frowned.

Once was forgivable; out of respect for Mr. Sun, they did not begrudge him.

But seeing him go further, their anger gradually rose.

Mr. Sun, who had been looking at the map, heard his disciple's mockery again, his eyes darkening: "Ruoyu, I do not want to say it a third time."

Only then did Xu Ruoyu reluctantly hold his tongue, nodding repeatedly: "Teacher, your disciple understands."

Though he said this, his arrogant expression showed no sign of diminishing.

Mr. Sun secretly sighed.

If not for this child's exceptional talent, he would truly not wish to have him by his side.

He only hoped that he would become more restrained as he aged.

Thinking of this, Mr. Sun pointed to a marked spot on the map and said, "I'm sorry to trouble everyone; please accompany me to this place. Acquiring the Jade Heart Grass depends entirely on luck, and I must try each one."

The map was already marked with many locations by Mr. Sun.

According to Mr. Sun's intention, searching these locations would probably take a considerable amount of time.

With Mr. Sun speaking, everyone could only suppress their anger.

Bai Ruqi played with her golden thread gloves and simply responded, "Alright."

They were meant to escort; wherever Mr. Sun wished to go, they would follow.

Mr. Sun nodded slightly, preparing to put the map away.

At this moment, Qin An suddenly spoke from the side, "There is no Jade Heart Grass there."

This statement left everyone present momentarily stunned.

Mr. Sun frowned and asked in doubt, "Do you mean you've been to this place?"

Qin An shook his head and said, "I haven't been there, but there is indeed no such thing there."

Xu Ruoyu immediately jumped up, pointing at Qin An, "What are you saying, a mere brute with a knife, what do you know about herbs!"

He was already displeased because the Golden Patrol Guard did not leave the city to greet him.

During his time at Xunyang Prefecture, he had never been looked down upon like this.

Now, with Qin An coming out to question him, Xu Ruoyu seized the chance to cause trouble.

Qi Chenfeng and others heard this, widened their eyes, and looked at Xu Ruoyu with astonishment, as if surprised by Xu Ruoyu's boldness.

The previous group mockery was one thing, after all, it wasn't directed at anyone specifically.

But now he was actually pointing at Qin An specifically to ridicule him.

The most critical part is that he dared to mock Qin An.

Due to Qin An's promotion to Golden Patrol Guard, his background was already known among the Patrol Guards.

From Ding County to now, no one had ever survived his hands.

This reckless youth dared to openly provoke this Evil Star, was he really so careless with his life?

Xu Ruoyu saw Qi Chenfeng and the others looking at him with astonished eyes, thinking he had intimidated them, he couldn't help but feel a bit smug.

Qi Chenfeng sighed: "A newborn calf is not afraid of a tiger."

Du Yixing tightened his waist-side double hooks: "I hope Mr. Qin will show mercy."

Bai Ruqi glanced at Qin An with her bright eyes and smiled charmingly: "Let me witness the elegance of the unrivaled fists and blades."

Xu Ruoyu was feeling pleased, but hearing the words of the three, a trace of confusion appeared in his eyes.

But then, he suddenly felt as if all the hair on his body stood up.

He sensed Qin An's gaze sweeping past like a blade, causing him to feel as if he had fallen into an ice cave.

"You..." Xu Ruoyu stammered, "What do you want to do?"

At Xunyang Prefecture, he was the apprentice of the Medicine King, always surrounded by admirers and countless people trying to ingratiate themselves with him.

But now he suddenly had the illusion of facing a great flood and a fierce beast.

Qin An spoke in a cold tone: "The Patrol Guards risk everything for the safety of the human race. If you continue to speak disrespectfully, undermining the authority of the Evil Extermination Bureau, you will not be able to bear the consequences."

Xu Ruoyu opened his mouth, about to retort.

To his surprise, Qin An's next words made him immediately close his mouth, unable to utter a word.

"If you don't believe it, you can try."

In his tone, there was a chill like a blade.

The words of Xu Ruoyu were stuck in his mouth, no matter what, he couldn't say them out loud.

Mr. Sun was slightly surprised.

He actually didn't mind his disciple being intimidated by someone.

In fact, he was glad to see his disciple receive some lessons to gain some experience.

But what he didn't expect was that this black-clad young man's mature and sophisticated mind was beyond expectation.

Faced with Xu Ruoyu's mockery, he first pressed down with the righteousness of the Evil Extermination Bureau.

And during the threat, his peripheral vision also glanced at him, seemingly observing his expression.

"Such scheming, appearing in one so young," Mr. Sun thought to himself, "If Ruoyu could learn even a fraction of it, it would be good."

Thinking of this, Mr. Sun pressed Xu Ruoyu's shoulder and asked, "Sir, since you haven't been here personally, why are you certain that there is no Jade Heart Grass here?"

Qin An sheathed the cold star that was drawn an inch out, saying, "It's the mountain's terrain."

The mountain's terrain?

Mr. Sun pondered: "What is mountain terrain?"

Qin An said calmly: "In my view, the so-called harsh conditions for Jade Heart Grass not only come from the so-called diurnal temperature difference, but are also related to natural formations."

"The landform, the mountain's terrain, for an Array Master, are all natural formations. Jade Heart Grass is formed by such natural formations."

With the profession of an eighth-level Array Master, Qin An has made significant progress in formations.

And as a ninth-level physician, Qin An's knowledge of medicinal materials is extremely comprehensive.

As for why Mr. Sun does not know, in Qin An's view, that's quite normal.

There is so much knowledge in the world, who can know it all? Even the Medicine King of Xunyang Prefecture has things he doesn't know.

Qin An has a professional Golden Finger, and as long as the knowledge is within the Gui Cang Realm, there's nothing he doesn't know.

For instance, the method for refining Yang Elixir as a Pill Master was just like this.

Mr. Sun was slightly surprised: "This statement is indeed novel, the first time I've heard it, but I can't give up searching because of this."

As Qin An thought, Mr. Sun indeed has some shortcomings in his knowledge of Jade Heart Grass.

But Mr. Sun also can't abandon the search for Jade Heart Grass just based on Qin An's reasoning.

Qin An nodded and did not insist: "As you wish."

He was just saying it casually to make an impression.

If the other truly believed him, that would be strange.

"It's getting late, let's set off," Mr. Sun put away the map.

Everyone nodded, said no more, and left the teahouse with Mr. Sun.

...

But before going to this place, Mr. Sun led them around to another location.

Ahead, a narrow stone path winds into the valley, with steep cliffs on both sides covered in lush vines, and occasionally pale purple wild orchids poking out their heads from the rock crevices.

Mr. Sun looked at the gorge in front of him and said with great emotion, "I've been to Lingzhou before and met some fellow practitioners. If we can get help from the locals here, we might learn the outcome faster."

Qin An looked at the gorge in front of him, his mouth twitching slightly.

Above the gorge was a plaque with the words Hundred Medicine Valley written on it.

And at the gorge entrance, Elder Sang Yang, who had once fought alongside Qin An, was eagerly waiting while riding a green bull.

When Elder Sang Yang saw Mr. Sun, he immediately beamed with delight and warmly welcomed him.

But before he got close, Elder Sang Yang saw Qin An with a golden badge hanging from his waist and gradually became even more joyful in his eyes.

"Qin An! Didn't expect to meet you here!" Elder Sang Yang said excitedly.

The Pseudo-God Green Bull gasped, "Hiss… Pulse Condensation Realm, how did you, kid, advance so quickly!"

The voices of both human and bull immediately caught everyone's attention.

Everyone looked towards Qin An.

Mr. Sun looked enlightened, smiled, and said: "So Brother Sang Yang knows Mr. Qin."

He thought that Elder Sang Yang's joy was solely because of him, not expecting that part of it was also due to Qin An.

However, Mr. Sun didn't mind. In his thinking, this young Golden Patrol Guard must have helped the Hundred Medicine Valley.

But just as he thought this, the next words from Elder Sang Yang left him stunned.

"Mr. Sun, this is the medical prodigy of Lingzhou I mentioned in my letter!"

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