This is an extremely strange man, his long hair is like flames, even his pupils are glowing with fire, and a fiery aura emanates from his body, as if it wants to set the surrounding air on fire.

"I didn't expect that there was a cave hidden here, and even my divine sense couldn't detect the slightest trace, so it seems that the level is not low. ”

The red-haired strange man looked at the stone wall and muttered to himself, an orange-red flame emerged from his fingertips, dripping and spinning, and then with a flick of his fingers, the flame sank into the stone wall and exploded, dissolving the stone arm into a large hole, and a stream of molten hot magma flowed out.

Then he shook his head, a hint of regret on his face.

Suddenly, another figure fell from the sky, a woman in black, exuding a cold aura all over her body.

"How?"

The woman in black asked coldly, like an iceberg that would not melt for ten thousand years, especially the eyes that were cold to the bone.

"Tianyuan Lingzhu should be on this young man, but unfortunately he has already escaped into this cave. ”

The man in red frowned slightly.

"Then what should I do? The employer must have the Tianyuan Spirit Bead. The woman in black's tone was as cold as ever.

"This cave, we have no ability to crack it at all, just let a mercenary escape, it is estimated that it will not be long before a strong man arrives, and we can only retreat immediately. As compensation, we can tell the employer about the cave. ”

The man in red sighed.

"That's all there is to it. ”

The woman in black nodded.

Immediately, the two of them turned into a red and black light and disappeared into the rift

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In a huge cave, the light was bright, and the figures of Chu Xiao and Mei Wei appeared on a high stone platform.

"Whew, it was so dangerous just now!"

Chu Xiao thought of the thrill just now, his heart was still pounding, and he couldn't help but breathe a sigh of relief.

"I wonder what happened to my dad?" Mei Wei looked gloomy.

Chu Xiao glanced at Mei Wei, didn't speak, didn't know how to comfort her, and knew in his heart that Mei Lingfeng was probably more than lucky, after all, the big red hand that attacked him just now probably should have discovered that the Tianyuan Spirit Bead might be on his body.

Then he began to look at his surroundings.

On the stone platform he occupied stood a simple portal, on the portal, engraved with many ancient textures, dense, exuding a faint halo, and on the stone platform, there are also many strange textures, some grooves are placed in a lot of fist-sized spars.

"This is the portal?"

Chu Xiao looked at the quaint portal in front of him, and a trace of surprise appeared on his face.

The portal of teleportation, which was extremely common in ancient times, was used as a teleportation defense tool for the mountain gate of Dongfu.

In fact, this portal is a simplified version of the teleportation array.

The portal can only be teleported at close range, not too far, while the teleportation array can be teleported at intervals of thousands of miles or even 100,000 million miles.

Let's just say that the portal that Chu Xiao saw in the formation library of Ziyun Academy last time was actually a kind of teleportation gate, which could allow people to teleport between the Tian Yuan Continent and the different dimensional space.

So far, the portal has still not been studied, mainly to form the core formation of the portal gate, which has been unable to crack, even if there are many teleportation gate arrays as examples, it is still impossible to crack the mystery of the core array.

Chu Xiao's heart moved, and he summoned the cultivation system, wanting to check where the core formation of this teleportation gate was.

However, he was disappointed by the fact that the teleportation array was too high-level, beyond his scope of copying.

It seems that something that is too advanced cannot allow the Xiuzhen system to copy its information.

Chu Xiao looked away from the portal of teleportation, looked around, and finally fell to the top of the cave, only to see many fist-sized night pearls, like stars in the sky, embedded in the rocks, emitting a faint light, illuminating the entire cave as if it were day.

"Sister Weiwei, you stand here, don't run around. ”

Chu Xiao admonished Mei Wei, and then walked towards the stone platform.

Mei Wei silently looked at Chu Xiao's back, her eyes flashing with a strange light.

In Chu Xiao's mind, the internal information about the Infinite Cave Mansion emerged, all the formations of the entire Cave Mansion had a core formation diagram that controlled the operation of all the formations, as long as this formation could be controlled, then the entire Infinite Cave Mansion would be able to be completely mastered.

Generally speaking, the core formation is in the most secret, and it is also the most heavily defended, and the most dangerous area, if it is a person who is not familiar with the Infinite Cave Mansion, unless he has a deep knowledge of the formation and can crack the formation step by step, otherwise, even if he is not killed by the formation, he will be trapped, and the danger is abnormal.

Chu Xiao had the complete information in the Infinite Cave Mansion, so he immediately found the best route to reach the core formation, but this best path was also extremely dangerous, with many powerful formations, it was not an easy thing to break them one by one.

Under the stone wall of the cave, there are more than a dozen passages, these passages can lead to the core formation, but the difficulty of each one is different, some are almost killing paths, killing formations everywhere, and some are mazes, puzzle arrays everywhere, some are trapped paths, there are many kinds of trapped formations, and more are mixed with various formations.

Therefore, when entering the channel, if you are lucky enough to choose a channel that suits you, then the success rate will increase a lot.

Chu Xiao took Mei Wei to stop in front of a passage, this is a mixed formation channel composed of formations such as phantom arrays, trapped formations, blocking formations, dark formations, etc., but there are no killing formations such as killing formations.

Although Chu Xiao has the certainty of breaking the formation, he did not choose the killing and injuring formation, after all, if he is not careful, it is a dead end, if it is a phantom formation and a trapped formation, it is different, even if it fails, it will be a predicament at most, not a dead end, and there is still hope of breaking the formation.

Of course, unless it is a person like Chu Xiao who is familiar with the Cave Mansion Formation, otherwise, the Phantom Array is relatively more dangerous, once it is trapped, then it is better to live than to die.

Exhaling lightly, Chu Xiao walked into this passage, and then the figure disappeared, Mei Wei on the platform saw this, and her heart hung up, but she didn't move, and kept in mind what Chu Xiao had just told her.

The first formation that Chu Xiao entered was a maze of a low-grade spirit array-a shadowless and formless maze array, once he fell into it, then he would be lost in it forever and would not be able to find an exit.

Of course, with the most detailed information on breaking the formation, this maze is still within Chu Xiao's ability to break the formation, so it didn't take much time for Chu Xiao to break through this formation and enter the formation of the next ring, which is also a maze, but it is not a maze, but a superimposed array of two inferior spirit arrays.

Chu Xiao still passed the test easily.

With such a deep break, Chu Xiao had already passed through fifteen formations and entered the sixteenth formation.

According to the information of the cultivation system, there are a total of eighteen formations in this passage, and one is stronger than the other.

And now this sixteenth formation is composed of a total of eight medium-grade spirit arrays, phantom arrays, trapped arrays, blocking arrays, chaotic arrays, wave arrays, dark arrays, and static arrays.

These formations all belong to non-lethal formations.

In fact, in the field of formations, there are a total of eleven types of non-lethal surname formations and nine types of lethal surname formations.

In addition to the eight non-lethal caste formations mentioned earlier, the other three are fixed formations, chemical formations, and living formations.

The nine types of killing and wounding formations are killing arrays, absolute arrays, fighting arrays, soldier arrays, puppet arrays, grinding arrays, moving arrays, spell arrays, and martial arrays.

Each type of formation includes countless formations.

In the current Xiuzhen civilization, non-killing surname formations are generally used, and as for the killing surname formation, it belongs to the restricted surname formation, and it is rarely circulated in society.

However, in the cave mansion of this ancient period, there were not so many restrictions, and various killing and non-killing surnames were emerging in endlessly.

The superposition of the formations of the eight medium-grade spirit arrays, the difficulty of breaking the formation is high, let alone eight, even if it is a medium-grade spirit array, it is extremely laborious to crack, the superposition of this formation is not as simple as one plus one, and the changes and complexity generated will increase by a hundredfold.

However, Chu Xiao, who has a cultivation system, after using the Daigo empowerment function, was able to crack this formation in a state of peak detail, and successfully entered the seventeenth formation.

A formation is more complex than a formation.

The seventeenth already contains ten superimposed formations.

Chu Xiao still passed smoothly, but when it came to the eighteenth formation, it was a little troublesome, because this formation had already reached as many as eleven, and there was a core large array, which had reached the level of a high-grade spirit array.

Chu Xiao is just a sixth-grade array craftsman, and he is still one step away from a seventh-grade master, so he can't refine a high-grade spirit array at all, and he can't break this kind of high-grade spirit array.

However, in the cultivation system, it was mentioned that there was an insignificant flaw in this composite array.

This flaw is enough to make Chu Xiao break the formation.

Of course, this breaking formation is extremely difficult to grasp, if it weren't for the information prompt of the cultivation system, let alone Chu Xiao, even if it was a formation master, it would be absolutely difficult to detect the flaws in this formation, and he could only forcibly break the formation. And this kind of compound formation containing eleven large formations is so difficult that even a formation master will probably have a headache.

Call!

It took more than half an hour for Chu Xiao to grasp the flaws in the formation and narrowly pass through this composite formation.

As he came out of the formation, Chu Xiao found that he had come to the end of the passage, and in front of him was an unfathomable abyss, in which boiling magma flowed, and a blazing breath came out of it, making the temperature in the air extremely high.

The passage was cut off at this point, and there was no bridge to the opposite side at all.

It may seem to the average person that as long as you can fly, you can successfully pass through this abyss, but if you try it hastily, you will definitely die without a place to bury.

Because the space where this abyss is located, there is a forbidden air formation, once it flies halfway, then it will be subjected to a powerful forbidden air force, and it will no longer be able to maintain its flying state, and it will fall directly and be wiped out in the rolling magma.

Chu Xiao took out a jade stone from the time and space table, his eyes fell on a very hidden point on the opposite side, and then he flicked his fingers, and suddenly the jade hit a small stone, and suddenly there was a loud bang, and many stone slabs flew out of the magma and suspended above the abyss, forming a simple stone slab bridge.

Each stone slab was three or five meters away from each other, from this side to the opposite bank, there were dozens of stone slabs, Chu Xiao showed a smile on his face, and then jumped on the nearest stone slab, and so on and so on, he successfully reached the opposite bank, and then the stone slab above the abyss sank into the magma again.

Chu Xiao walked into the passage again, there was no formation in this passage, and he went all the way deep and came to a hall.

In this hall, there is an altar-like platform, and on top of the platform, a huge array is suspended, from which waves of fluctuations are conveyed, which seems to be connected to all corners of the entire cave mansion, presiding over the operation of the entire cave mansion formation.

This is the core formation!

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(To be continued)