This battle has entered the most critical and fierce time. Liu Ben's heart was pounding, and he knew that there was not much time left for him.

"There is still an exotic aura in the void, and the mysterious powerhouse and Cai Hongxi should not have succeeded yet."

Liu Ben was secretly anxious. There was silence all around, and the frequent vibrations that had occurred before had disappeared, but Liu Ben became more and more anxious in his heart.

The reaction of the two was so abnormal that Liu Ben was worried that they would be about to succeed.

"Hurry, hurry, you have to hurry......"

Liu Ben was secretly anxious in his heart. His fingers clenched so hard that his knuckles turned white. Boom, the next door opened, and suddenly an unexpected scene happened.

On the opposite stone wall of this Daoqi Gate Fighting Room, there is an additional cave excavated by artificial violence. The cave was more than one high, and it was pitch black inside, and it seemed to be very deep, and I didn't know where it led.

Looking at this strange cave, Liu Ben was stunned, and then reacted.

Cai Hongxi!

It was actually Cai Hongxi. This bastard dug holes everywhere and actually dug into his own door. Liu Ben was stunned, and immediately reacted in only a moment, his heart was full of ecstasy, and he almost jumped up happily.

"Great!"

Cai Hongxi's style is to go there and dig wherever he goes, he uses the yellow spring water to corrode the power of the formation, and the 'holes' and 'holes' dug out of the stone wall avoid the attacks of the formation.

He only needs to follow the passage he dug to get in, which can save a lot of computing time and avoid possible attacks.

"I don't know how he did it. There is still yellow spring water on the body here. ”

Liu Ben shook his head, his body was vertical, and a gust of wind passed through the stone chamber and appeared in front of the 'cave' dug by Cai Hongxi. Call! Liu Ben's heart moved, and a raging flame floated up from the palm of his hand, illuminating the 'cave' in a bright light.

The walls on both sides of the cave are mottled. It is very rough, and it can be seen that they are all Cai Hongxi's handmade works. However, what Liu Ben focused on was the length of this 'cave'.

Compared with the 'cave' that Liu Ben saw at the beginning, this 'cave' is much longer and very deep. Liu Ben observed it and was very surprised. The places Cai Hongxi excavated seemed to have been carefully thought out and carefully selected, and they were all gaps in some formations, which allowed him to bypass most of the formation power.

"The gap between these strange 'gates' can observe the operation of part of the Demon Suppression Great Array, Cai Hongxi has been using this method to bypass the prohibition of the formation, judging from the situation he excavated, from the outside, he should also slowly master some of the methods of the Demon Suppression Great Array."

Liu Ben looked at the passage in front of him thoughtfully.

The stone wall cannot be dug casually, and there must be enough understanding. Otherwise, it will be a dead end to dig into the 'door' of death.

Characters like Cai Hongxi do not have a diagram of the Demon Suppression Array. But smart people have smart methods, Cai Hongxi stubbornly relied on his wisdom and understanding 'nature', and actually pecked out some of the movement laws of the demon suppression array in the excavation of the 'cave'.

Although Cai Hongxi's understanding of the formation may not be as good as his own, it is obviously enough for him.

"Whew!"

Liu Ben flicked his sleeves and walked along the 'cave'. More than ten zhang later, another stone wall appeared in front of me. On the stone wall is a deep 'cave'.

"Cai Hongxi, thank you."

Liu Ben smiled slightly. Honestly and unceremoniously flew in.

The passage excavated by Cai Hongxi is crooked, not a straight line. And the length of each section of the 'cave' is also different.

Throughout the process of excavation. Cai Hongxi seems to be thinking all the time, 'fine' and selecting. The passage he worked so hard to dig out was fulfilled by Liu Ben at this time.

Liu Ben didn't even need too much calculation, just follow in. The journey of a mile passed in a flash, and I don't know how long it took, but the passage ahead. A drifting mist surged through the air.

The mist gurgled and flowed into the passage.

"This breath...... It's familiar, it's almost exotic. ”

Liu Ben looked ahead in a daze.

If he hadn't known, Liu Ben would have even thought that this was another small exotic. The taste, the feeling, is very pure. It's exactly the same as Liu Ben's feeling in a foreign land.

Liu Ben slowed down. He knew that the front was probably the true core of the Demon Suppression Array. It is also the place where the exotic powerhouse was suppressed.

Liu Ben was also secretly shocked that this exotic powerhouse actually relied on his own strength to create a small exotic environment here.

"This foreign powerhouse has been dead for so long, and the remaining power can actually open up a small foreign land in the cultivation realm. Such a powerful creature doesn't know how Venerable Pu Ling did it back then and suppressed it. ”

Liu Ben said secretly in his heart.

Liu Ben walked through the 'cave', and a cool, icy feeling came from his skin, and there was a feeling of being soaked in ice water in winter.

An invisible force acted on the void, Liu Ben took a slight breath, and even felt that the blood and qi in his body were slightly not so smooth.

This feeling is exactly the same as being suppressed by the rules of heaven and earth when he strayed into a foreign land, but the environment created by this foreign powerhouse is obviously far less than that of a foreign land, so the power of suppression is far less powerful.

Da!

The soles of the feet stepped on the ground, and there was a crisp sound. Liu Ben 'straightened' up, raised his eyes and looked around, there was fog all around, gray and foggy, he couldn't see clearly, and he didn't know where this was.

"It's too strong."

Liu Ben frowned, and subconsciously a flame was about to rise. But after thinking about it, I still dispelled the thought:

"Forget it, it's pitch black here, and lighting a fire is tantamount to pointing out the target to them, which is harmful and unprofitable."

The core has arrived, and the mysterious powerhouse and Cai Hongxi must not be far from him. The three of them gathered, and Liu Ben didn't dare to hold it up at all. However, although he can't light an open fire, Liu Ben is not helpless.

Shout!

The light flashed, and the three sword lights in Liu Ben's body rose, shook it, and rose out like Liu Ben's ears and eyes. The core of the Great Demon Suppression Array is very 'yin' and cold, not only because of the breath left by the foreign powerhouse after his death, but also because of the 'yin' qi of the earth where the core of the great array accumulates animals.

This caused Liu Ben's flying sword to be disturbed a lot, and the speed of blood qi consumption was much faster than normal.

The void was silent, Liu Ben stood still, his consciousness and the three sword lights merged into one, and he explored in all directions in the turbulent mist.

"There's something strange about this space, and it's a big ,...... It's not like a simple bucket room. ”

Liu Ben was secretly surprised. The distance explored by the flying sword was somewhat beyond imagination, and it had already gone out to the area of at least three fighting rooms, but Liu Ben's flying sword had not yet touched the wall.

"It's too quiet, and the mysterious powerhouse and Cai Hongxi don't know where to dig. It's too quiet, huh? ”

Liu Ben frowned, puzzled. It stands to reason that having reached the core of the formation, and taking it a step further, the 'essence' blood of the exotic powerhouse that countless monks dream of can be obtained at their fingertips, and Cai Hongxi and the mysterious powerhouse should not be so calm.

But listening carefully, Liu Ben couldn't hear the slightest sound. There wasn't even a sound of the Great Array Stone Chamber moving. It was as if the two of them had evaporated from the big array out of thin air.

This kind of silence is really abnormal.

Liu Ben was '' the flying sword while thinking secretly. Suddenly, ding! A crisp metallic sound came into his ears, and Liu Ben was overjoyed:

"We've reached the edge."

Liu Ben looked at it through the flying sword, and at some point, the flying sword that was exploring towards the opposite side finally arrived at the edge, and a wall finally appeared in front of Liu Ben.

However, unlike the wall that Liu Ben encountered earlier, this wall is not made of stone, but metal. Liu Ben's flying sword slammed into it, and even a burst of metal sparks appeared.

"What is this?"

Liu Ben was secretly surprised, not only the material of metal, but also some other things found on it. On these dark gold 'colored' metal walls, there are many simple and solemn ornaments, and Liu Ben even found a solemn and solemn black 'color' dragon and tiger on them.

"It's a universal celestial thing."

A flash of inspiration flashed in Liu Ben's mind. This solemn and solemn style is a special mark of the universal heavenly realm.

"I'm afraid this kind of metal is not low quality."

Liu Ben said secretly in his heart.

The flying sword continued to explore, and Liu Ben discovered more things.

It's not as simple as a wall. The entire metal wall was huge, and it was dome-shaped, Liu Ben imagined it in his mind, and quickly judged that it was probably a huge metal ball.

At the same time, the flying swords exploring on the left and right sides have also reached their end. The results of the exploration confirmed Liu Ben's judgment. It's a huge ball of metal, half underground and half above ground.

And even if you are in the huge arc-shaped space between this huge metal ball and the outer stone wall. This space, even in Liu Ben's understanding, is huge.

Liu Ben stood for a long time, silent, and his eyes showed a look of thinking.

"This zone should be used to isolate the core area, or it may be some kind of buffer for the operation of the formation. As for the metal ball......s, they look very dense and hard, and they should be used to trap the exotic powerhouse and prevent it from escaping. ”

Liu Ben knew that everyone thought that this demon suppression array was used to kill foreign powerhouses. But in fact, it was actually used by the Puling Venerable to refine the foreign powerhouse.

Venerable Puling's purpose was not to kill it, but to slowly wear down this exotic powerhouse. It refines the 'essence' blood of its whole body, and finally turns it into a drop of 'essence' blood, which is the most precious to the monk.

"That exotic powerhouse should be in here."

Liu Ben raised his head and looked at the huge metal wall in front of him, and a 'fine' glint flashed in his eyes. Feeling that it was almost over, Liu Ben summoned the three flying swords back with a wave of his palm. (To be continued......)