"The Thunder Tribulation of the War Sect Realm breaking through the War Emperor Realm is already full of power, coupled with my own abnormality, under the superposition of various factors, the power of this Heavenly Tribulation will be several times stronger than the War Emperor Thunder Tribulation I have survived before. ”

Li Xuan blocked one thunderstorm after another, and his arms were numb from the shock.

This has just begun, the power of the thunder tribulation is so terrifying, what should the last few waves of thunder tribulation be terrifying, Li Xuan's face was slightly pale.

The greater the power of the Thunder Tribulation, the better the effect of refining the physical body, of course, the premise must be that you can withstand the test.

Li Xuan's arms were like a royal curtain, blocking all the thunder tribulations.

After carrying this wave of thunderstorms, Li Xuan looked down at the huge pit under his feet thoughtfully.

"This is an important stronghold of the demon race, and there is definitely an ulterior secret that has been poured into the ground after so much hard work. ”

Li Xuan has been away from the land of Vientiane for many years, and he has been away from the North Continent for more than ten years, and he doesn't know how far the demon race has expanded in the North Continent and the North Land.

However, judging from the scale of the stronghold here and the number of Terran monks captured, Li Xuan believed that the situation in the northern continent and the northern land was not optimistic.

Back then, the wisp of demon soul that entered Zhongzhou with Li Xuan never showed its whereabouts, and it was always a problem in his heart, if he didn't find out the situation in front of him, Li Xuan couldn't rest assured.

After thinking for a moment, Li Xuan flew to the bottom of the huge pit, just now he came out in a hurry to save people and did not check carefully.

The rock walls around the pit are covered with countless tunnels, which zigzag and stretch all the way to the ground.

Obviously, before Li Xuan arrived, the demon clan drove the enslavement to dig these tunnels underground.

Because of this, Li Xuan would sink into the ground after hitting the ground, otherwise he would not have produced such a deep pit.

The thunderclouds rolled and roared, and one after another thunder and lightning struck again and followed into the huge pit, Li Xuan calmly carried the thunder tribulation and continued to explore below.

Li Xuan raised his hand with a sword qi and cut a hole horizontally on one of the rock walls of the deep pit.

Through this excavated passage, Li Xuan found that the entire underground of the Demon Cave was covered with this tunnel, spreading all the way to the depths of the ground.

With the melting tower as the center, the tunnels are the most densely distributed, and the black smelt flows down the tunnels into the ground.

There are more than a thousand black melting towers in the entire Glacier Demon Cave, and the dense tunnels lead to the ground, like a large sieve clasped on the ground.

Li Xuan picked up a piece of pitch-black and stiff slag, which was supposed to be a slimy paste, because the heat generated by the lightning was baked into a dry solid.

Li Xuan pinched it lightly, and the slag turned into fly ash, wafting out a foul and unpleasant smell.

"These smelts have the effect of banning aura, and they are also corrosive, what is hidden underground?"

Li Xuan continued to fly down, and the light became dimmer and dim.

Deep underground, Li Xuan came across a thick layer of pitch-black rock, which was several miles thick, all of which were made of refined slag.

The thoroughly cooled slag rock layers were extremely hard, completely cutting off the underground from the outside world, but they were vulnerable in front of Li Xuan.

Li Xuan blasted out with a punch, blasting the black slag rock layer out of a large hole, and a thick aura erupted from the ground.

"Spirit Stone Vein!"

Even though Li Xuan was prepared, he was still taken aback.

This is a huge vein of top-grade spirit stone, Li Xuan has been digging along the ground, and now this spirit vein is at least more than a hundred miles long.

The giant top-grade spirit stone vein, only the main trunk is a hundred miles long, and the branch veins derived from it add up to hundreds of miles, and the number of spirit stones rich in it is amazing.

"How is it possible that there are such amazing spiritual veins in the Far North?"

According to Li Xuan's knowledge of the situation in the Land of Vientiane, since the Great War of the Ancients, the spiritual energy of the Northern Continent and the Northernmost Land has become thinner and thinner, and it is impossible for such an amazing spiritual vein to exist.

With the existence of such a spiritual vein, a special terrain will inevitably be formed in this area, resulting in a blessed land that various sects must compete for, and even the spiritual energy that can drive the entire northern land will be much better.

Li Xuan frowned and thought for a moment, then said to himself: "I see, the demon clan is afraid that the existence of this spiritual vein has appeared since ancient times, and it has been forbidden and hidden by special means to prevent the growth of the hundred clans.

Now, the land of the north has completely fallen into their grasp, and they have begun to use their means to refine this spiritual vein, these molten slags with a forbidden effect can not only hide and isolate the spiritual vein, but their colleagues are also corroding and devouring this spiritual vein, continuously providing energy to the demons. ”

Although it was just his own speculation, Li Xuan believed that it was not far from the truth of the matter.

Back then, before Li Xuan came to Xuanmen, the aura of Xuanmen was declining day by day, wasn't there also a formation arranged by the demon clan? The situation here was similar to the situation in Xuanmen at that time, but the scale was much larger.

"The aura of the North Continent and the Northernmost Land has become thinner, and the decline of luck is all the secret tricksters of the demon race!"

Li Xuan said slowly, the strategy of the demon clan is not unclever, it can not only weaken the strength of the hundred clans in the land of Vientiane, but also secretly enhance its own strength.

Under the advantages of one another, one day the land of Vientiane will completely fall into the hands of the demons.

Thinking of the now powerful demon clan in the Land of Vientiane, Li Xuan couldn't help but break out in a cold sweat.

Rumble!

Several thunderbolts exploded in the deep pit, and another wave of thunderstorms came as scheduled, and the dark underground suddenly became white.

Li Xuan's face was not shocked, and a few punches scattered the thunder light.

A thunderbolt can instantly steam the late-stage cultivators of the Battle Sect, even if it is an overflowing arc, it is not something that the Battle Spirit Cultivator can resist, but several thunderbolts were scattered by Li Xuan's punches, if it is seen by outsiders, it is absolutely unbelievable.

"Ask the people inside, how many demon strongholds similar to the Glacier Demon Cave are there in the Far North and the North Continent?"

After Li Xuan dealt with this batch of thunder tribulations, he said to Wanrou.

Li Xuan clenched his fists, since he finally returned to the northern part of the Land of Vientiane, he just gave the demon clan a little color.

Wanrou appeared in front of everyone again, and went straight to the Tanglin Hongyu people.

Among these thousands of people, Yun Yingzi and the others have the highest cultivation, and their state has recovered the best, and they may get more information by asking them.

"At the beginning, we sent a large number of spies for the Savior, and at the same time bought a lot of information, so we happened to know the distribution of the demon caves. ”

Ning Wuze said fifteen-ten.

"Let me tell you. ”

Tanglin Hongyu took a step forward and handed Wanrou a map of the distribution of demon caves.

In order to obtain information about the Glacier Demon Cave, the Tanglin Red Rain almost consumed the resources of the Tanglin Kingdom, which made several of her imperial brothers extremely dissatisfied.

Even if it is flesh and blood, not everyone is like Tanglin Hongyu, and it is necessary to save the arrested father Dongling Hongning if he insists on his own opinion.

Tanglin Hongyu won the support of Tanglin Shangzong, and it was only after overcoming public opinion that he could get so much information.

According to the information collected, the demons have built more than 20 demon caves in the northern continent and the northernmost places, the smallest area is also a radius of 100 miles, and the largest abyss demon cave is even more than a radius of 1000 miles.

"The demons are planning in the northernmost land for a longer time than the northern continent, so there are more demon caves built, and seventeen of the more than twenty demon caves are in the northern, and the northern continent is separated by a sea area, and the area of the northern continent is far broader than the northern, and the demon's claws only control the northern coast of the northern continent for the time being, and cannot control the entire northern continent, so the number of demon caves is only less than ten. ”

Tanglin Red Rain gave Wanrou the distribution of the demon caves one by one and introduced them in detail.

"The Abyss Demon Cave covers the most extensive area, and it is rumored that the demon clan stationed there is the strongest, could it be where the headquarters of the returning demon clan is located?"

Wanrou asked thoughtfully.

Tanglin Hongyu shook his head and said, "There are many rumors about the Abyss Demon Cave, and it is indeed the most dangerous, but as for whether it is the headquarters of the Demon Clan, I don't know, because no one came out of there alive. ”

Wanrou nodded, with this detailed map of the distribution of the demon caves, she should be able to return to Li Xuan, and asked some questions to the others, but she really couldn't ask for more news and left again.

Li Xuan's fight against the Thunder Tribulation seemed to be easy, but his mind could not be distracted, he could only keep the sound with Wanrou, and he didn't even have time to look at the others.

"This is a map of the distribution of demon caves, can it be useful to the sect master?"

Wanrou communicated through the power of the soul and passed the content of the map to Li Xuan.

Li Xuan had a detailed map in his mind, and said, "Okay, good job, wait for me to go to these demon caves and give a big gift to the demon clan!"

This map marked more than twenty demon caves, and even if some of the location information was discreet, Li Xuan believed that the discrepancies would not be too large.

"The other demon cave closest to this place, more than a thousand miles to the east, if I use the flying warweapon, it will take me a day, but if I use the magic wings regardless of consumption, it will be much faster, while the heavenly tribulation is still there, I will strive to sweep a few more demon caves. ”

Before leaving the Glacier Demon Cave, Li Xuan had to do an important event.

Li Xuan fell to the bottom of the giant pit again, his mind moved, and endless blood-colored energy covered the condensation, like a blood-colored tornado, he washed away the black shell of the spirit stone vein, revealing the crystal clear ore vein trunk inside.

"Close!"

Li Xuan wrapped the main trunk of the entire spirit stone vein, and with a low shout, the core of the spirit stone vein was moved into the Xuan Realm.

Because the solution he thought of to solve the problem of aura in the small world was to transfer the core of the spiritual vein into the small world, so that the aura of heaven and earth could be derived from it itself.

"However, the current small world is still too small to ingest in it. ”

Looking at the spiritual vein core in front of him, which was several miles long, Li Xuan suddenly fell into a dilemma.

His brows furrowed slightly for a moment, and a seed-like spiritual creature appeared on Li Xuan's body, which was the special small world he had refined.

The power of the Demon Yuan rushed out frantically at this moment, and Li Xuan used the surging aura of heaven and earth as an energy source to make use of the surrounding natural resources, and used the power of the Demon Yuan to simulate the construction of the secret realm of the moon, and then injected it into the small world.

Thundered!

The thousands of people hiding in the small world were startled, startled by the loud rumbling noise coming from all directions, and they all got up and looked around vigilantly, for fear that there would be another terrifying natural disaster and thunder tribulation.