Chen Xiao suddenly understood after hearing what he said.

So it was a mental attack!

The so-called mental attack is a pure spiritual attack, different from martial arts and magic.

The biggest characteristic of a mental attack is that the stronger and purer the soul, the more significant its effect will be.

This is why Shi Ling's strength was clearly above that of Gongsun Yi, but under the mental attack, Shi Ling seemed even more disheveled than Gongsun Yi.

However, what puzzled Chen Xiao even more was why he didn't have any reaction to this mental attack.

In fact, when the Prince of Lu used the mental attack, he didn't feel the slightest bit of coercion.

Just then, Chen Xiao suddenly felt a tightening all over his body. He could clearly feel a sense of prying covering his body.

At the same time, he also discovered that he couldn't resist that sense of prying at all.

In an instant, Chen Xiao understood that the Prince of Lu's strength was probably far above his own!

Just then, he heard the Prince of Lu muttering to himself again.

"Tempered Qilin Eyes, hmm, this kid really has something..."

"Eh? What kind of cultivation technique is he practicing? I've never heard of it before. It doesn't seem like it should exist in this world at all!"

…

Listening to the Prince of Lu reveal his secrets one by one, beads of sweat couldn't help but appear on Chen Xiao's forehead.

This Prince of Lu gave him an immense sense of oppression, a sense of oppression he had never felt before.

Chen Xiao became unprecedentedly nervous, his mind highly concentrated. He had already prepared for a desperate fight.

However, just then, the Prince of Lu suddenly let out a surprised sound.

"Huh? Yin-Yang Jade? How could it be on you?"

Chen Xiao was also startled and stared directly into the Prince of Lu's eyes, asking, "Do you know about the Yin-Yang Jade?"

The Prince of Lu looked at Chen Xiao but didn't answer his question at all. Instead, he said to himself, "No wonder my mental attack had no effect on him. So, he has the protection of the Yin-Yang Jade. But why is the Yin-Yang Jade on him? Could this kid be a descendant of an old friend?"

Chen Xiao was dumbfounded, completely unable to understand the current situation.

What was even more hateful was that the Prince of Lu completely ignored his questions!

After a moment, the Prince of Lu waved his hand, "Kid, you can leave. Since you're a descendant of my old friend, I naturally have no reason to make things difficult for you. But don't come here again in the future. I don't like being disturbed, not even by descendants of old friends."

The way he waved his hand was as if he was shooing away an ignorant child, which made Chen Xiao very speechless.

"Senior, can you tell me about the Yin-Yang Jade? Although I've been wearing it since I was a child, I know nothing about it."

Chen Xiao showed the due respect to such a powerful figure from ancient times.

The Prince of Lu snorted, "You're talking nonsense. If you knew nothing about the Yin-Yang Jade, then where did your skills come from?"

Chen Xiao: "…"

He really wanted to say, 'I got them from a dream, would you believe it?'

Then the Prince of Lu said again, "Kid, whether you're a descendant of my old friend or not, since the Yin-Yang Jade has chosen you, it means you're destined to have this opportunity. As for other things, you can only explore them yourself. I have nothing to say."

"Okay…"

Chen Xiao was a little helpless. Suddenly, he asked again, "Then, Senior, have you figured out the answer to that question? Are you a person or a ghost?"

The Prince of Lu stood with his hands behind his back and said calmly, "Over the long years, I have lived for so long and been trapped in this confined space. What difference does it make whether I am a person or a ghost?"

Chen Xiao was startled and asked, "Senior, then why don't you leave here? With your strength, I'm afraid no one in the world today would be your opponent."

The Prince of Lu snorted and said proudly, "I had no opponents in my era either. Besides, this era doesn't belong to me. If I go out, things will be messed up."

Chen Xiao muttered, "I think you're just saying that because you can't get out."

The Prince of Lu wasn't angry at all and said with a smile, "You're right, I really can't get out. My current body is neither human nor ghost. Once I leave this place, I will instantly be annihilated. Originally, I had dozens of zombies to play with when I was bored, but since you guys came, I don't even have any playmates."

"But you are the master of the Yin-Yang Jade, and I can't keep you here, so you should leave quickly before I change my mind!"

Chen Xiao suddenly felt very sad. How lonely must one be to choose zombies as playmates? This is probably the pain of immortality, isn't it?

Although Chen Xiao still had many questions, he knew he couldn't get any answers, so he had to give up.

However, there was one question he had to ask.

"Senior, I have a request. Has anyone else broken in recently besides us? If so, please point me in the right direction!"

The Prince of Lu shook his head.

Then he said proudly, "What do you think this place is? Do you think anyone can just come in here? It's only you. If it were anyone else, they would have died eight hundred times before even seeing me!"

"But if you tell me what the person you're looking for looks like, I can help you check. If he's really in my Eight Gates Dun Jia formation, I'll know as soon as I check!"

Chen Xiao's eyes lit up, and he quickly told the Prince of Lu the characteristics of Xuanmingzi.

Then the Prince of Lu slowly closed his eyes. After a moment, he opened his eyes, "Found him. This little rat is good at hiding, actually hiding within the Sheng Gate (Gate of Life)."

Then he glanced at Chen Xiao, "He's much smarter than you, knowing to take the Sheng Gate. You, on the other hand, chose the most dangerous Death Gate. I can only say you're lucky to be alive and walk into the Six Harmonies Palace!"

Chen Xiao smiled sheepishly and said awkwardly, "It's just that my mother was taken hostage by that villain, and I was overwhelmed."

The Prince of Lu nodded, "I see, that's understandable. Since you're in such a hurry, I'll send you over right away!"

"Wait!"

Chen Xiao raised his hand and pointed to Gongsun Yi on the ground, "Senior, please send my friend along as well. It would be best if you could send him directly to a safe place."

"What a nuisance!"

The Prince of Lu frowned but still waved his hand. Immediately, a blue light flashed on the ground, and Gongsun Yi disappeared.

"Okay, now it's my turn. Let's begin, Senior!"

Chen Xiao looked like he was ready.

The Prince of Lu waved his hand again. Chen Xiao only felt his body become incredibly light, and then he floated up. After that, he didn't know anything.

After Chen Xiao disappeared, the Prince of Lu stared blankly at the open space and said, "Goodbye, little fellow. I hope we can meet again soon! When that time comes, it will be when I am completely free!"