Wu Ji said that the cave Lu Feiyue was in, was only an ordinary cave, and the real problem lay with that Stone Door.

Earlier on, he had read of a technique called 'Yang Yin' in an ancient book on yin and yang.

This technique was specifically used for concealing one's identity. It could be considered a form of camouflage.

It was similar to a modern safe, but Yang Yin could use magic to hide the hidden secret chamber on the surface without being discovered. Only those who knew the secret technique would be able to use a special method to open the secret chamber.

For a period of time, this invisibility was very popular in the houses of nobles and nobles, because at that time, everyone had some small secrets they didn't want others to know. Some people needed to hide some of their gold, silver, and jewelry, while others needed to have a secret room to discuss with others.

If an ordinary person were to use the Yang Concealment Technique, they would not be able to find the entrance to the secret chamber, which would increase their safety.

However, more and more rumors spread, and it gradually became less and less useful. That was because everyone knew what was going on with Yin Yin. Hiding was no longer of much use, and gradually no one was able to use this technique anymore.

But Wu Ji never thought that such a technique would be used by someone to trap the prisoner's soul.

The principle of the Yin Concealment Technique was actually very simple. After application of the technique, the door would become one Yin and one Yang. The Yang side required Yin and the Yin side needed Yang to be opened.

Of course, ancient nobles and officials would not use their own blood to open the door, and usually, the caster would prepare two talismans for them to use.

Just now, when I was entering the cave, I felt that Stone Door sensed the negative information, which meant that it was the Yin Surface. As for Wu Ji's blood attributed Yang, naturally, she opened the door.

However, at the same time Wu Ji opened the door, he used a Glyph to break the Yang Concealment Spell, so we heard the sound of an explosion from the Stone Door just now, but it was actually the sound of a spell breaking.

Although the way to open the door wasn't difficult, Lu Feiyue had already been dead for an unknown amount of time, and even her corpse was unknown as to where it had fallen. The cave was completely empty, with only a strand of her soul left.

"Who is Lu Feiyue? Also, Lil 'Bro, you said that the door could only be opened by blood, so how did I get in? " Scrawny Monkey asked again.

He doesn't look like he's playing dumb, and there's no need to hide it from him anymore.

"Lu Feiyue is the Female Ghost you saw just now." I said bluntly.

Wu Ji also pointed to his hand.

When Scrawny Monkey lowered his head and looked at his hands, he realized that his hands had been stained with blood. This would explain why he could directly open the door and enter the cave.

"Aiya, when did I get injured? I don't even know myself." Scrawny Monkey was stunned, he immediately retracted his hands and held them tightly.

However, I could clearly see that there was no wound on his hand, and the blood should have been accidentally stained when he was rummaging through his companion's corpse. However, even though Wu Ji and I knew this in our hearts, we didn't say anything about it.

Although Wu Ji saw through the problem of getting the door, we are still unable to find out for the moment why Lu Feiyue's soul was trapped in the stone cave the entire time.

So we decided to talk about other things after we return to the village to investigate. Since Lu Feiyue is currently sealed within the Death Jade, she wouldn't be able to come out and cause trouble without Wu Ji, so we don't need to be too worried.

After a night's rest, we set out early the next morning to return to the village.

On the way, Wu Ji said that he had initially guessed that the Xiao Xi Kou would be hidden buildings or secrets related to Yin Yang Arts, because that was not the case.

However, after the cave collapsed and the cave entrance automatically revealed itself, a huge change had occurred in the flow of energy along the Feng Shui lines in the entire Xiao Xi Kou. The center point that he had originally calculated had also been shifted, and the biggest secret that was hiding in the entire Xiao Xi Kou should actually be that cave.

Wu Ji and I found the location of the Seven Fiends Soul Refining Formation after we received the guidance of the dead Zhiqing Soul. The moment we dig out the seven corpses, we'll consider it breaking the Seven Fiends Soul Refining Formation.

The aura around the entire area for several hundred years did not have any changes, and was not affected by the changes of the outside world. Breaking through the Seven Fiends Soul Refining Formation was like a broken dominoes, and instantly, a series of changes occurred.

As such, the mountain that had been hidden for so many years collapsed, revealing the entrance to the cave. That's how we found the cave.

Because he had seen Wu Ji's abilities, Scrawny Monkey asked nonstop along the way, and even said that he wanted to take Wu Ji as his master.

Although his chattering along the way was annoying, it also made the journey back less boring and boring.

Two days later, we finally exited the Xiao Xi Kou according to the set time.

Just as we left the Xiao Xi Kou, they saw Lin Gui sitting on top of a small horse at the entrance of the forest. Seeing that we were stunned for a moment, he rubbed his eyes and confirmed that we were really out, then turned and ran back towards the village, shouting as he ran: "We're back, Nun Qing is back …"

I didn't know whether to laugh or cry. It was as though we had returned in triumph.

This time, Wu Ji and I are determined to enter the Xiao Xi Kou to search for secrets, I am afraid that Aunt is already extremely anxious, and if we return to the village later, I am afraid that she will be secretly happy. I pulled Wu Ji and said: "When we go back home later, Auntie scolded me. You have to help me."

Wu Ji spread open his arms, revealing an expression that had nothing to do with him, and angrily glared at him.

As expected, before we even entered the village, we saw our aunt, the village head, and a lot of people from the village coming to welcome us.

In just a few days, I realised that my aunt seemed to have lost a lot of weight. Guilt filled my heart and I lowered my head, not daring to look at her.

"Aiya, Nun Qing, Master Wu Ji, the two of you are finally back. If you don't come back, Big Aunt will bring someone with his to look for you in the Xiao Xi Kou! " The village chief patted on Wu Ji and I's shoulders forcefully, showing his concern.

Aunt came over from the crowd and grabbed my hand, and asked if we were hurt. After knowing that we were fine, she was relieved, but she couldn't help crying.

My aunt has never had a child in her life and has always been more intimate with me than her own daughter.

"Aunt, I'm sorry. "I …"

"Alright, alright. I won't say anymore. It's good that you're back. Go home." The aunt took my hand and walked home.

I turned around to see Wu Ji looking at me with a smile.

"Hey, Master, wait for me!" The Scrawny Monkey quickly chased after Wu Ji.

When everyone heard this, they finally noticed the Scrawny Monkey. The village chief asked Wu Ji when he had accepted a disciple.

Wu Ji was too lazy to explain, he only shot a glance at Scrawny Monkey and started walking forward with big strides.

After returning home, Big Aunt was busy cooking delicious food for Wu Ji and me. The village chief was also happy that we had returned, so he let his wife cook a few dishes and brought them to my house. Everyone was happily eating on the brick bed.

Although he did not look like a good person, Wu Ji did not say anything. Everyone did not chase him away, and he did not take himself as an outsider either.

Wu Ji and I were quite hungry, even though we had never eaten scallions before, at this moment, Little Green was eating it with great delight even when it was dipped in soy sauce.

After eating our fill, the three of us sat on the brick bed, unable to move. Seeing that we were full, the village chief asked us what had happened in the past few days after we entered the Xiao Xi Kou.

Afraid that the villagers were afraid that we would cross the border again, we did not go into detail and instead spoke about avoiding the point. However, we did not mention that we had brought back the Female Ghost.

After that, Wu Ji asked the village chief to search for clues regarding the cave, even if it was within his capabilities.

After all these years, Xiao Xi Kou was a hellish place for villagers to eat people. Now, Wu Ji and I have returned twice, and the village chief simply treated Wu Ji as a living god, naturally agreeing to anything he says.

Of course, Wu Ji and I had not been idle either. We had similarly searched for clues regarding the cave using various methods, from ancient times until now.

What he did not expect was that Scrawny Monkey, who had always been a nuisance, would actually help him out this time.