The alchemy hall of the Nangong family is not very large, and the weight in the layout of the entire Nangong family is not very heavy, unlike the general gate sect, which generally sets up a palace room for alchemy for refining pills.

Although a great family like the Nangong family is powerful, it does not yet have the ability to refine the pill by itself. Except for some basic pills that can be refined by yourself, other pills need to be purchased from other major sects or markets, so this alchemy hall is a bit of a chicken rib, it is not an important department, and there are not too many people who usually come to the alchemy hall, it is very quiet.

Lei Yu was very lucky, but also unlucky to be assigned to the alchemy hall, as an alchemy boy, compared with other loose cultivators, there is no doubt that Lei Yu's work is not very good, but Lei Yu himself is very satisfied. The Alchemy Hall was small and quiet, just right for him to hide and gather intelligence.

"It looks like the elder won't be here for a long time. ”

This is already the twentieth day that Lei Yu has entered the Alchemy Hall, and at this moment he still has a sallow face, but the black robe on his body has been changed to a green coat, with a big character written on it - Dan.

This is the clothes specially distributed by the Nangong family, and since then Lei Yu has become the doorman of the Nangong family. It's just that Lei Yu doesn't care too much in his heart, with his cultivation, he can leave the Nangong family anytime and anywhere, and the so-called disciple status is just a title for him.

Lei Yu stood in front of a temple, looked at the sky, and then his pupils shrank slightly, and he nodded, as if he had determined something. Then he entered the temple and added some fire to a rusty furnace that burned in the middle of the hall.

This is the only Dan furnace in the Alchemy Hall, it is very simple, it is completely made of mortal iron, only a layer of seal is added to the surface of the Dan furnace, so that the underground earth fire will not melt the Dan furnace and become a ball of molten iron.

At the beginning, when Lei Yu saw this Dan furnace for the first time, he almost thought he was dazzled. If this Dan furnace didn't have that seal, even a mortal could refine it, of course, the quality would not be too good, but it would not be much worse.

It's no wonder that no one uses the elixir refined in such a Dan furnace, which is also a bit too cheating. And Lei Yu also has some understanding of the alchemy ability of the Nangong family, according to his investigation during this time, the alchemy hall of the Nangong family is not one, this is just the worst one of them, it can only refine some ordinary pills that can no longer be ordinary, but it is better than some ordinary medicines.

However, Lei Yu was not dissatisfied with this in the slightest. The worst alchemy hall, correspondingly, the management of this alchemy hall is also the most lax, which is the most suitable for him to inquire about the situation.

And the result was just as half of Lei Yu expected, there were only two people in this alchemy hall, one was him, and the other was a female disciple of the Nangong family Lei Gang, which could be described as extremely simple.

However, the female disciple in charge of alchemy has almost ignored the alchemy hall since Lei Yu came over, leaving Lei Yu alone to manage it, and as for where he went, Lei Yu didn't know what to do.

Fortunately, the task of this alchemy hall is not very heavy, as long as a certain amount of pills are delivered every month, and other aspects are not at all concerned, with Lei Yu's current ability, there is no problem at all.

And this also left some opportunities for Lei Yu. Now he can be said to occupy the Alchemy Hall alone, and he can toss as much as he wants, and it is easier to explore the situation of the Nangong family.

"It's been twenty days, and it's time for me to do something. Lei Yu muttered to himself, and a different light appeared in the depths of his eyes.

Since coming to the Alchemy Hall, Lei Yu has never left. For twenty days, he had been doing the work of an alchemy boy in the alchemy room, so that the people of the Nangong family who were hidden around him were completely relaxed, and they no longer had any doubts about him.

Ten days ago, Lei Yu had noticed that the hidden aura had decreased somewhat. And three days ago, the breath of the last breath also disappeared completely, which means that the Nangong family finally withdrew the surveillance of Lei Yu, and Lei Yu could finally make a move.

A cyan jade slip appeared in his hand, and Lei Yu's divine thoughts penetrated into it, and what appeared in it was a map with many red notes on it, much more than anywhere else, almost occupying as much as sixty percent of this map.

"There are so many places I can't go!" Lei Yu pouted, a little bored.

This map is the topographic map of the Nangong family, which records many of the main halls of the Nangong family, but at the same time, it also marks many places where Lei Yu can't go, and this is the only thing that the female disciple of the Nangong family gave to Lei Yu during this time.

As a women's family, the Nangong family's control over the door is undoubtedly much stricter, there are many places that prohibit the entry of the door people, violate the regulations and enter the forbidden area without permission, and after being discovered, they are directly killed, without the slightest mercy, and it is not reasonable at all.

"An important thing like Yin Yuan Jin, according to reason, should be placed in the most secret place. Among them, the most likely place is the treasure house of the Nangong family. Secondly, it is the residence of the head of the Nangong family......"

Lei Yu analyzed the most likely place where the Yin Yuan Gold existed, according to what Jun Wuxian said at the beginning, this piece of Yin Yuan Gold of the Nangong family was discovered by accident by the previous generation of Nangong family masters, and it was collected as an heirloom, as for where it was collected, it was not very clear.

"The treasure house of the Nangong family must be heavily guarded, and it is even more difficult to enter the treasure house, the possibility is very small, so you must consider it carefully. ”

"As for the room of the Nangong family master, I don't even know where the Nangong family master lives now, and it is difficult to find Yin Yuan Jin, and with the strength of the Nangong family master, even if I take out the Yin Yuan Jin, I am afraid I will not be able to escape the pursuit of the Nangong family master. ”

Lei Yu searched for the Yin Yuan gold hiding points that he could come up with one by one, and eliminated them one by one, but in the end, he found that it was too difficult to get the Yin Yuan gold, and the possibility was too low.

After all, the Nangong family is a big family, even if the strength is not strong, but it is only relatively speaking, it is still a behemoth in front of some small sects and small families, and Lei Yu must enter the depths of the Nangong family if he wants to find Yin Yuan Jin.

And many places are forbidden for people like Lei Yu to enter, so this search for Lei Yu is risking his life, and it is not impossible to be caught by the Nangong family if he is not careful, or even executed.

"Boy, don't be so pessimistic, although the Nangong family is powerful, you are not without the slightest means. Step by step, sooner or later, Yin Yuan Jin will be found. Yin Ming saw the expression on Lei Yu's face and couldn't help but comfort.

He also knew that Lu Dao's decision this time was really a bit reckless, but Lei Yu had to come, Yin Yuan Jin was too important for refining the Shen Yuan Gun, without Yin Yuan Jin, it was simply impossible for Lei Yu to refine the Shen Yuan Gun.

For the sake of the Abyss Gun, Lei Yu was willing to take a risk.

"Forget it, don't think about it, let's start with the palace with the most lax defense!" Lei Yu sighed secretly, and a trace of unconfidence appeared on his face.

The mansions of the Nangong family are very vast, there are hundreds of palaces alone, and there are heavy guards inside, and it is difficult to enter them. Although Lei Yu's cultivation is good, compared to the masters of the Nangong family, it can't be compared at all, and the difference between the two is too far.

In the next few days, Lei Yu was doing the work of an alchemy boy in the alchemy hall during the day, and at night he secretly went to the depths of the Nangong family to explore the palace where Yin Yuan Jin might appear. Because of his mastery, he was not discovered, but he also did not find Yin Yuan Jin, so he could only return in defeat.

However, Lei Yu was not reconciled and planned to go deeper into the Nangong family. So, half a month later, Lei Yu started to act again and secretly infiltrated the palace that he had searched for in advance. It's just that this time he wasn't so lucky, he didn't expect that there was an elder of the Lei Dan stage who was cultivating in that palace, and he immediately took action to force Lei Yu back.

Fortunately, Lei Yu ran fast, otherwise if he succeeded, his life would be lost. After that, Lei Yu didn't dare to act anymore, but stayed in the alchemy hall and didn't go anywhere. Except for the children of the Nangong family who came to the Alchemy Hall every month to collect pills, Lei Yu had never seen anyone, and it could be said that he was even more reclusive than hermitage, and he was very quiet.

And after that incident, the Nangong family suddenly increased their vigilance, five steps, one sentry, ten steps and one post, very strict, and did not let go of any movement. Naturally, the newly added protégés became the most important targets to be explored.

After Lei Yu knew, he naturally shrank up, and with the cover of the two immortal thunder stage powerhouses of Yin Yin and Jun Wuxian, Lei Yu was in danger. It's just that this investigation has found some problems in recruiting people.

Several loose cultivators were found stealing chickens and dogs, and they were directly executed, and their bodies were thrown outside the Lingshan Mountain and eaten by wild dogs. And some of the scattered cultivators were simply spies sent by other sects and families, but they were also discovered during this investigation, and they were also executed, which can be said to have suffered from unwarranted disasters.

With such a thing, the new doormen who have recently entered the Nangong family are naturally panicked, hard-working, and dare not have the slightest slackness, and this has made these new doormen the most diligent group of the Nangong family in recent years, of course, this is the next story.

Time passed, and three months passed quickly, Lei Yu stood in front of the Dan furnace in the alchemy hall and kept adding fire and adjusting the intensity of the flame, looking like he had become an alchemy boy, and his movements were very skillful.

Three months is not a very long time, but it is enough to make the people of the Nangong family forget about that time. During this period of time, Lei Yu has entered the depths of the Nangong family several times, but there is still no trace of discovery.

It's just that Lei Yu is not discouraged in the slightest, Yin Yuan Gold is too important, the Nangong family will definitely hide Yin Yuan Gold in important places, as long as you continue to look for it, you will definitely be able to find Yin Yuan Jin.

However, now Lei Yu is not worried about Yin Yuanjin, but another thing, Xiao Yujian, the son of the Xiao family, came to the Nangong family to propose marriage five days ago, and the object of the proposal was Xie Xinran, who made a lot of noise a few days ago.