Suddenly, Lu Xu's expression moved, and his gaze was fixed on a small piece of black iron in the corner. Then he pretended to be casual and walked over, took it in his hand and looked at it carefully.

The size of three fingers, the whole is irregularly shaped, and it seems to be a fragment of something that has fallen off from something. It is exactly the same as the fragment that Lu Xu got from that Huang Zhen, and it is obviously from the same object.

Lu Xu swept his soul power onto the iron piece, and sure enough, just like last time, his soul power seemed to be blocked by something and could not penetrate into the slightest.

Lu Xu's heart moved, and he immediately picked up the fragment and shouted directly to the fat shopkeeper: "I want this piece of iron, I don't know how many spirit stones?"

"One hundred and fifty low-rank spirit stones. When the fat middle-aged shopkeeper heard this, he glanced back and quoted the price without thinking.

"It's so expensive, it's just a broken piece of iron, it's not worth a hundred and fifty spirit stones. When Lu Xu heard this, he said deliberately.

As a result, after some bargaining, Lu Xu finally bought this somewhat mysterious fragment at the price of a hundred low-grade spirit stones.

Seeing this scene, the young monk on the side glanced at Lu Xu, and seemed to be even more annoyed by interfering with his trading behavior, and he was a little disdainful of the other party's bargaining behavior.

At this moment, the middle-aged monk who was with the young monk turned his head to look at it with a moving expression, his eyes fell on the black fragment in Lu Xu's hand, and a trace of doubt flashed in his eyes.

Lu Xu nodded with satisfaction, put the fragments into the storage bag, and turned around and walked outside.

This fellow Taoist walked slowly. The middle-aged monk's eyes flashed, and suddenly his figure flickered, and he actually blocked in front of Lu Xu.

"What do you have to do?" Lu Xu was slightly stunned when he saw this, but he was secretly vigilant in his heart.

"This fragment in the hands of the Taoist friend is willing to pay two hundred spirit stones to buy it. The middle-aged monk stared at Lu Xu with his eyes and said slowly.

The handsome young man on the side also walked up, glanced at the middle-aged monk in surprise, and then looked Lu Xu up and down, as if he was a little confused.

"Sorry, this fragment isn't going to be sold. Lu Xu naturally shook his head and refused.

The middle-aged monk frowned, the gloomy color in his eyes flashed, and he stared at Lu Xu's eyes tightly.

"Three hundred low-rank spirit stones," the middle-aged monk said coldly.

Lu Xu sneered in his heart, and looked at the other party without showing weakness, but he was not moved by the price quoted by the other party. Seeing that the middle-aged monk was also interested in the fragments, and it seemed that he was somewhat imminent. In my heart, I was sure that the fragment must be an extraordinary thing, and it was impossible to give in at the moment.

And looking at the breath on the other party's body, it looked like it was about ten layers in the qi refining period, and Lu Xu, who had a few good magic weapons on his body, didn't care much about it. Besides, he was about to leave this place, and he didn't care about offending a monk in the late stage of the Qi refining period.

"As I've already said, this fragment won't sell. Lu Xu still refused.

When the middle-aged monk heard this, his face suddenly became a little ugly.

"Your Excellency, don't be ignorant, do you know that the two of us are members of the Li family, and my uncle is a descendant of the Li family. This fragment, you just bought it for a hundred spirit stones, and in the blink of an eye, you earned two hundred spirit stones, what else is not satisfied. Although the young man next to him didn't know why the middle-aged monk wanted to buy this inconspicuous thing at a higher price, he immediately interjected to reveal his identity, and the threat in his words was obvious.

"Oh, Li family, I haven't heard of it. Lu Xu's heart moved when he heard this, it seems that this Li family should be a family of cultivating immortals, otherwise it would be impossible for the other party to directly report the surname. However, Lu Xu really hadn't heard of this so-called Li family, since he came to Wulongfang City, Lu Xu had been cultivating behind closed doors, and he really didn't know anything about the surrounding immortal cultivation forces.

"You ......" Hearing this, the young man's face turned red with anger, and he just wanted to scold, but was stopped by the middle-aged monk.

"For the last time, five hundred low-grade spirit stones, give me the fragments. Seeing this, the middle-aged monk said again with an expressionless face.

When Lu Xu heard this, his face changed, and suddenly he didn't bother to say another word, and he left the shop next to the middle-aged monk, leaving the two with stunned expressions.

In the shop, the middle-aged monk's face was a little blue, and his hands in his sleeves were already tightly clenched.

After the young man reacted, he was even more furious, and he was about to chase him out with an angry face.

"Wait a minute, since people don't want to sell, forget it. The middle-aged monk stretched out his hand and grabbed the young man, and the grim expression on his face slowly faded.

"Uncle, did you really let him go like that?" grumbled the young man with a look of anger on his face.

"Don't forget, Wulongfang City is the territory of Yunluo Sect, and it is forbidden to fight in Fang City, do you still want to break this rule. The middle-aged monk's face had regained his calmness, and it was obvious that his usual cultivation skills were very good, but in comparison, the young monk was much worse.

"But?" said the young monk reluctantly.

"Needless to say, since the fragment was taken by the other party first, whether or not it is willing to transfer it is also his freedom. Let's go. The middle-aged monk shook his head, a hint of evil flashing in his eyes, and walked out of the shop.

The young man muttered in a low voice, hurriedly followed, and as soon as he left the door, he hurriedly asked:

"Uncle, what's so unusual about that fragment, why did Uncle take it at such a high price. ”

"If I'm not mistaken, it shouldn't be a simple thing, it can actually isolate the exploration of soul power. The middle-aged monk said to the young man as his lips twitched as he walked.

"Can you isolate the exploration of soul power?" the young man was shocked.

"That's right, I just swept the fragment with my soul power, and there is something on the surface of the Discoverer's fragment that has isolated my soul power. It follows that the fragment must be something extraordinary. The middle-aged monk said lightly.

"Damn it, it was bought by the man. When the young man heard this, he was taken aback at first, and then a trace of greed flashed in his eyes.

You must know that ordinary things are extremely difficult to isolate the exploration of soul power, which means that the inconspicuous fragment may be a treasure.

"Forget it, let's come to Wulongfang City this time to find the mysterious alchemy master for my Li family, so don't worry about it. The middle-aged monk said lightly.

And the other side. After Lu Xu left the store, he quickly blended into the flow of people and made a few big circles in the market. After making sure that no one was following him, he found a secluded place to restore his original appearance, and returned to the small courtyard where he lived.

As soon as Lu Xufang returned to the small courtyard, he began to pack up his things without saying a word, erasing all traces about himself. Only then did he take the fragment out of the storage bag and look at it carefully.

The fragment was only three finger sizes, with the exception of a few black spots. There is nothing else special about it, and it is impossible to sense any changes when mana is injected into it. Immediately, Lu Xu took out the fragment obtained from Huang Zhen, compared the two, and found that it was indeed from the same object.

After fiddling with it carefully, but it couldn't be spliced together, it seemed that there must be other scattered fragments, Lu Xu thought about it, and decided to wait for the opportunity to find all the fragments before researching.

Immediately, after making sure that there was no trace left, he swallowed the next Transformation Pill, once again transformed into an extremely ordinary-looking young man, and quietly left Wulongfang City.

Just when Lu Xu quietly left, Wulongfang City was made strange because of the rumors that there was a mysterious alchemy master in a Fang City. Although there are many pill shops in the market, for those who really have a heart, the number and origin of all kinds of pills in the market are roughly known, and any little wind and grass can attract the attention of some forces. Not to mention a large number of high-quality Qi Refining Pills of unknown origin.

Now, even if he is a dull person, at this time, he knows that there is probably a real alchemy master in the Fang Market who is good at refining high-quality qi refining pills.

The high-quality Qi Refining Pill is an elixir that helps to break through the bottleneck. Naturally, many forces were interested in the alchemist who could refine this elixir, and they began to secretly send people to investigate.

Wulongfang City is close to the bustling area in the west, and there are more than ten zhang of street shops. The exterior decoration of the shop is gorgeous and atmospheric, with a red lacquered door and a bright and clean window, which is the shop where Xiao Xu sold three hundred Qi Refining Pills at one time.

In the middle of the hall, a middle-aged man in a white robe sat with a majestic face, and a handsome young man stood next to him. If Lu Xu was here, he would definitely know that this person was the middle-aged cultivator who had just fought with him for the fragments in the shop.

And the young monk was standing quietly on the side at the moment, and there was also a man in purple, who was whispering something to the middle-aged monk with a respectful expression, it was Li Mi, the shopkeeper who had received Lu Xu.

"Li Mi, in this way, it was a young man who came here to sell the Qi Refining Pill at that time. After thinking for a while, the middle-aged monk suddenly asked in a deep voice.

"Yes. Because it was a scarce elixir like a high-quality Qi Refining Pill, I personally received the transaction at that time, and the person asked for a private transaction, and it was not easy to ask him about the source of the pill, and after the transaction was completed, the person left quickly. Li Mi respectfully agreed.

"Is there any characteristic of that young man?" the middle-aged monk frowned slightly.

"That person is about twenty-seven or eighteen years old, and his figure and appearance are very ordinary, but his cultivation is a little strange, and his subordinates can't see through it. Li Mi recalled for a moment and said.

Seeing that the middle-aged monk didn't speak for a while, Li Mi hesitated for a moment before continuing:

"I have already sent someone to investigate, and the number of high-quality Qi Refining Pills that appeared this time is about a thousand, and they are scattered among seven or eight stores. Moreover, according to our eyeliner, it was this young man who sold the pills in various shops, but it was a middle-aged man with a beard who appeared a few months ago, and these two people had not been seen since the pills were sold. ”

"It seems that the alchemy master is very careful and doesn't want to attract attention, so he sends a different person every time, or there is only one person all the time, but that person keeps changing his appearance. The middle-aged monk pondered for a moment, then guessed.

"It should be like this, many people in the market also think the same way, and no one can see through this person's cultivation. Li Mi continued.