Fortunately, only the 'Spirit Collecting Array' and the low-level Xiuzhen Cave Mansion need the 'Spirit Gathering Array' to supply energy, and for the time being, the 'Spirit Gathering Array' can provide enough energy.

Once Niu Kaiyu creates more formations and caves, the situation will be different, not only will more attribute points be needed, but even the 'Spirit Gathering Array' will not be able to easily provide energy.

It is necessary for Niu Kaiyu to continue to use attribute points to build the second 'Spirit Gathering Array', and with the increase of the 'Spirit Gathering Array', it is inevitable that Niu Kaiyu's room will be targeted by people with intentions.

Therefore, Niu Kaiyu planned to move outside to live at the right time, and build a larger mansion outside, so that he could build more formations.

Once built, there will be more and stronger humanoid golems inside, and even offensive and defensive formations will be placed inside the mansion......

"Young master, the master is looking for you and let you go to the back house!" The steward Niu Jingsheng looked happy after entering the door, and greeted him very politely.

"Okay, I'll go right away. Niu Kaiyu, who was in deep thought, nodded, and some thoughts were disturbed by the other party.

But knowing that Old Man Niu knew about the situation before, especially after killing two powerful masters.

According to Old Man Niu's judgment, the master who can easily defeat his second eldest Niu Xingwen is at least at the eighth level of Qi training, and even the ninth layer of Qi training is possible.

After personally inspecting the corpses of the two, Old Man Niu was more inclined to judge that the strength of these two strongmen had reached the ninth level of Qi training.

"It's not easy! Xiao Yu can even kill a strong person of this strength, it's not easy, not only did he not shoot in person, but he also killed two at once!"

This is two and two masters of the ninth layer of Qi cultivation, even if they can easily destroy the Niu Mansion, even if they defeat him, the strongest person within a radius of a hundred miles, it is also a very easy thing.

Although he has reached the eighth layer of Qi training, compared with these two strong men who forcibly broke into the inner courtyard, the gap is not one or two points, even if he is allowed to deal with two Qi training eight layers, let alone two Qi training nine layers.

But since such a strong person can appear in Niufu, does it mean that the other party still has such a strong person who will continue to appear in Niufu?

Is it the ghost of Old Man Zhou?

Or is it someone else?

It stands to reason that the other party forcibly broke into the inner courtyard and looked for the permission of the Xu Mansion, originally this matter had little to do with the Niu Mansion, and it was completely free to be involved, especially after the Xu Mansion came to withdraw from the marriage, the Niu Mansion could be completely ignored.

It's just that because of the old man Zhou, Old Man Niu looked at the face of the two worldly friends, so he reluctantly let the family members of the Xu Mansion come to live.

But I don't want two strongmen to break into the inner house now, and finally they are killed by Niu Kaiyu's inexplicably recruited subordinates.

Although he successfully prevented the other party from forcibly breaking into the inner house, even if the government came, there was nothing to say, not to mention the forced entry into the inner house in this era, even if it was a forced invasion of the house, he also had the right to kill the other party.

But the problem is, looking at the appearance of these two people, their identities are not simple!

The other party can easily break into the inner house, and it seems that it is definitely not once or twice that he has done this!

What would they do if they knew about it?

Will it be easy to let go of the Niu Mansion or even the Xu Mansion?

Therefore, the old man Niu and the old man Xu muttered for a long time and couldn't figure out the ideas, so they decided to simply discuss the content of Niu Kaiyu together.

In particular, Niu Kaiyu's strength is very strong, and even the people he recruited privately are stronger, and even the old man Niu is a little worried, will the people recruited by his grandson privately have bad motives?

The doubts in my heart were difficult to solve, so I simply talked to Niu Kaiyu.

"I've seen my grandfather!Grandfather Xu!" Niu Kaiyu entered the door as politely as before.

One is his grandfather, and the other is also his ex-grandfather-in-law, who has always been called this before, and originally planned to change his words after a while after Niu Kaiyu and Xu Er's marriage are completed.

"Come, Xiaoyu, tell us quickly, you have not only recovered your strength now, but you are more powerful than our two old guys, how come you can even have such a strong strength even the few subordinates you recruited now?"

"Yes, Xiaoyu, not long ago, I heard your second uncle say that you found a lot of subordinates in private, and actually dug a lot of potholes near the front yard and backyard, making the house very messy, I was a little worried at the time, can you tell me how your subordinates recruited them, and their strength is so strong?"

Niu Kaiyu smiled slightly, he didn't know how to reply for a while, this kind of can't be said to be his own domineering spirit, all the heroes in the world surrendered, right?

As for what got the 'Xiuzhen Concealment System', it is even more impossible to say, this kind of thing is not only unclear, but also makes the two old men suspicious.

Once the three views of the two old men are broken, I'm afraid it's not a good thing.

Fortunately, in the past few days, Niu Kaiyu has already planned and prepared his rhetoric roughly, so he had to say vaguely:

"A few days ago, my grandson met a mysterious master, and under the persuasion of this master, he successfully worshiped under his door. In the past few days, seeing that my strength has improved a lot, he gave me his former miscellaneous disciples before traveling all over the world. ”

"I see, isn't this master near our Niu Mansion now? It's a pity, how nice it would be to meet each other otherwise!"

"I've been traveling all over the world for a long time, if it weren't for my academic success, he would have wanted to leave a long time ago!"

"Alas, alas, alas...... It turns out that the reason why your cultivation fell a few days ago was because of the guidance of this senior master?"

"Yes, otherwise, how could a good cultivation fall, it's not because you have to practice the exercises taught by this master that are different, so you have to scatter your skills and re-cultivate!"

"Then I don't know what kind of exercises you are practicing? Of course, if the master doesn't allow it, then forget it!"

"Returning to the Yuan Gongfa!"

"Returning to the Yuan Technique? Could it be a powerful exercise that summarizes the Yuan Qi between heaven and earth into the body?"

"That's right! That's probably what it means. This is a very special exercise, before cultivating the 'Guiyuan Exercise', we need to disperse the exercises of our Niufu before we can practice ......"

After learning that Niu Kaiyu would leave a team of subordinates in his courtyard to protect the safety of Niu Mansion, the two old men were relieved.

After appeasing the two old men, Niu Kaiyu did not stay, but hurriedly returned to his yard, intending to continue looking for the mine overnight.

Especially now that the sky is still bright, it is convenient to inquire about the mine.

If it's dark, it's hard to find someone to explore these mines.