The Heavenly Demon Castle was divided into three layers, each of which was a huge formation.

The three-tier formation is based on the most central formation and can form a large formation that encompasses the entire city.

At the same time, the three-tier formation itself can also operate independently.

Now, for example, the formation of the Demon Castle today has always followed the formation of the Hong clan back then, and there have been no major changes.

This is also something that Li Xiao has confirmed after many investigations.

After all, this formation was the handiwork of only a few god-level formation masters of the Hong Clan.

The strength of the wheel formation is second only to Qianli Hongcheng. With the formation fully open, even the Tribulation Period monks could not force their way in.

Of course, in that case, the consumption is also a very terrifying astronomical figure.

After so many days, although Li Xiao had already determined the formation of the second and third layers, there was no change.

But in the middle layer, Li Xiao is not sure if there has been any change. Because he can't get in now.

The third layer of the Heavenly Demon Castle, only the Heavenly Demon is qualified to enter. Or the demon who was invited by the heavenly demon inside.

And the teleportation point that entered Qianli Hongcheng was on this third floor.

When Li Xiao was looking for an opportunity to enter the main city, he was in a tavern ten streets away from him.

There was a Heavenly Demon Old Man dressed in an ordinary cyan robe, with sword eyebrows and starry eyes, a goatee on his chin, gray eyebrows and beard, but black hair, sitting in a small private room.

The old man looked like an ordinary person, without any breath on his body and without any energy fluctuations. It's a stark contrast to the rest of the city.

At this time, there were four more people opposite him.

One of them was a sturdy Heavenly Demon Old Man, but his hair was gray, and the wrinkles on his face were very obvious.

Like the old man who was sitting, there was also no energy flowing out of him.

The only difference is that the old man standing has an aura that only a person who has been in the top position for a long time.

However, he was very respectful to the old man who was sitting.

In addition to the first time, the other three will definitely know each other if Li Xiao is again. It was Broken Soul, Hongyan and Jiang Huahai.

At this time, the faces of the three of them were a little not good-looking. Because they were caught. It's just that the other party didn't ban them.

After waiting for a long time, the two old men didn't speak, and Hongyan, who was a little impatient, couldn't help but ask: "I don't know why the two adults asked me to wait? ”

The black-haired old man slowly put down the teacup in his hand, looked at the window and said, "I came to you because I was a little tired of waiting. ”

The old man's inexplicable words made the three of them a little confused. I could only look at the old man in confusion.

The old man didn't look at them either, but said faintly: "If my guess is correct, Li Xiao should be in the city now, right?"

As soon as the words came out, the hearts of the three soul-breakers tightened. But they had a puzzled look on their faces.

Broken Soul spoke: "What did the Lord say about the Thousand Commanders of Southern Regions City back then, Li Xiao?"

The old man nodded.

Seeing this, Broken Soul spoke again: "What does it mean that the Lord wants to find him, and call us over?" To be honest, we haven't seen him since he disappeared. ”

The old man looked at the broken soul, as if he wanted to see something from the broken soul. Broken Soul also looked at the old man.

Just as the broken soul was about to speak, the old man suddenly raised his hand. A violent suction instantly enveloped the broken soul.

In the face of this suction force, the broken soul had no ability to resist, and instantly fell into the hands of the old man.

Seeing this, Jiang Huahai and Hongyan immediately prepared to save the broken soul.

At this time, with a wave of the other old man's hand, a powerful coercion instantly enveloped the two of them, pressing them in place and unable to move.

At this moment, the old man's other hand reached the head of the broken soul, and then a very terrible scream came out of the broken soul's mouth. It is then blocked indoors by soundproof formations.

At the same time, all kinds of green and white liquid flowed out of his facial features, and he looked very frightened.

Seeing this scene, Broken Soul and Hongyan's face instantly became very ugly. Even if they haven't experienced it, they know very well that this is the soul search.

The whole soul search process lasted for a cup of tea, and the screams of the broken soul lasted for so long.

When the soul search was over, he fell to the ground as if he had no bones, and his whole body would shake uncontrollably from time to time.

It's just that there is still a trace of brilliance in his blood-red eyes.

The old man wiped his hands a little, and then said, "Yes, the will is very strong. It's a pity that it can't be used by me. ”

As he spoke, he took away the demon beast bag that broke the soul.

When he erased the mark of the broken soul, the broken soul twitched again and completely fainted.

Looking at the broken soul that had passed out, Jiang Huahai's body twitched, and his fists crackled. But nothing can be done. I could only look at the old man with angry eyes.

The old man didn't care about their gaze. Just took out a small thing like a jellyfish from the monster bag.

This thing is the soul mother who stripped the soul of the sacrificial contract in her body.

He looked at the soul mother in his hand, which obviously didn't have any energy, but exuded the aura of a god-transforming monk.

The old man's mouth couldn't help but let out a burst of smack.

At this time, Jiang Huahai had calmed down, and he asked in a deep voice, "What do you want to do?"

"What do I want to do?" the old man sneered, "I think you want to do something, right?"

"I didn't expect you to have developed to such a point now, far more than I expected. ”

"If I endure it for a few more years, I'm afraid you can really make it to the climate. ”

"Sky hunter, what a sky hunter. ”

"It's just that you were founded by Li Xiao, and now you are going to be completely destroyed because of Li Xiao. ”

As he spoke, he turned to another old man and said, "Publish the news, these three people are guilty of the following crimes." From today onwards, use them as the everlasting lights of the Heavenly Demon Castle. ”

The Everlasting Lantern is an extremely cruel punishment set by the Heavenly Demons.

The punished person is nailed to a pillar that is higher than all the buildings in the city, and then uses the formation to attract various negative energies around it to produce a kind of yin fire.

And with this fire burns the punished.

Yin fire not only burns the body, but also burns the soul with all kinds of negative energy. Although this kind of torture is not as good as the kind of backlash pain that Li Xiao endured back then.

But it will be a long time, because this kind of yin fire will not kill the victims, but will continue to corrupt them.

Under this corrosion, their consciousness will gradually fade, and eventually they will become a demon full of negative energy. It is also a puppet of the Heavenly Demon.

The longer this demon is corroded, the stronger it becomes. The time is as long as a thousand years, and the strength is comparable to that of the monks of the god period.

The news quickly spread throughout the city, and when Li Xiao learned about it, his face became extremely ugly.

Even with his concentration, he couldn't help but be upset for a while. It is more calmer to put it on the inside.

This made him somewhat regret agreeing to let them stay. But now is not the time to think about that.

After some discussion, Li Xiao quickly returned to the place where he had settled.

This is a medium-sized restaurant, and Li Xiao chose a more remote corner on the first floor.

The reason why Li Xiao chose this place was because there was a small node of the formation near here.

After returning to the foothold, Li Xiao arranged a secret formation in the room, and then instantly escaped underground.

After sneaking down for about ten zhang all the way, Li Xiao was blocked by a layer of light cover. This is exactly the protective shield of the formation itself.

If this protective shield is to be opened with Li Xiao's current strength, it will take a day.

He obviously doesn't have that much time now.

Li Xiao took out a array disc that had been prepared during this time and placed it on the protective cover.

As soon as the array disc landed on the protective shield, it immediately lit up with a soft light and quickly merged into the protective shield.

Immediately afterward, a three-foot-sized hole was revealed in the shield.

Seeing this, Li Xiao jumped in without hesitation and got in.

As soon as he entered, the void immediately recovered, and at the same time, the array disk just now also fell.

After taking over the array disk that had been exhausted, Li Xiao felt a pain in his flesh.

Just now, Li Xiao consumed ten top-grade magic crystals. That's the equivalent of 100,000 ordinary magic crystals.

Putting away the things, Li Xiao was guided by the wilderness, and Li Xiao fled forward along a formation line.

This half-zhang wide formation line looks like there is only one, but it is actually made up of more than 93,000 formation lines combined.

It didn't take long for Li Xiao to come to the end of this line, in front of an extremely complex formation.

Seeing this formation, Li Xiao instantly felt that the hairs on his whole body exploded, and his scalp was numb.

This formation was too complicated, and it was far beyond the limit that Li Xiao could calculate.

Although he knew almost every formation symbol here, he also knew what he was used for.

But when they were combined, Li Xiao felt suffocated.

Here the symbol looks only about 100,000 or so. However, the connection between them is mistaken and complicated, and it is estimated that there are tens of millions at first.

And that's not even the scariest of all.

Li Xiao can be sure that this formation must be a product left over after extreme streamlining and optimization.

Because every symbol in this three-dimensional formation, which covers an area of about 20 zhang, is constantly moving.

Each time they move, they create a new connection with the symbols around them.

And each of them has its own specific route, and it is not related to each other. There are so many changes in this that Li Xiao has a feeling of amazement.

If it weren't for the limited time now, he really wanted to be able to immerse himself in this formation until he had mastered it completely.

And this formation was only one of the nodes of the entire Heavenly Demon Castle Protection Array, and there were nine thousand nine hundred and ninety-nine such nodes in the entire Heavenly Demon Castle.

And all of these nodes are finally connected to the City Lord's Mansion in the center, where the final control point is.