The cave was winding and bottomless, but it was not straight down, but tilted, which saved Long Yuchen a lot of energy.

After entering the cave, Long Yuchen's body shook slightly, controlled his body, and slowly fell down, the speed was not fast, and it seemed very slow.

At the same time, Long Yuchen's body instantly erupted with a dazzling golden light, like the scorching sun in the sky, very dazzling.

For safety, Long Yuchen even displayed the artistic conception of the tower, and the shape of a light tower appeared on the periphery of his body, firmly protecting his body.

All the way down, it was pitch black, ghostly, and deserted, and it exuded a musty smell all the time.

But if you feel it carefully, you will also find that under this musty smell, there is a mysterious evil aura, which is slowly permeating.

The cave is very deep, thousands of zhang away, the more Long Yuchen falls, the heavier the yin qi around him feels, and the bottom of the valley seems to faintly reveal a fierce and evil aura, which makes Long Yuchen vigilant.

Long Yuchen knew in his heart that there might be a powerful demon beast hidden at the bottom of this cave, and it was very powerful, because as he fell, that aura became more and more obvious, fierce and evil, it didn't seem to be a good thing, and it had to be treated carefully.

"Is this really the python's lair?" Long Yuchen was suspicious, this place was too weird.

The underground cave was extremely quiet, there was no sound, and Long Yuchen descended for thousands of meters before reaching the bottom.

He had to be shocked, this was a huge sinkhole, it was extremely wide, it was really rare, and there must have been a secret in the past. Unfortunately, all this has been sealed in the dust, and there will be nothing left in the future.

Coming to the ground, Long Yuchen raised his whole body strength, carefully watched the movements around him, and began to look for the source of the evil and gloomy aura.

It's a pity that Long Yuchen looked at it for a while, and the bottom of the valley was surrounded by strange rocks that didn't grow a single grass, and he couldn't hide at all, but he didn't see any demon spirits. This made Long Yuchen stunned in his heart, puzzled, and then shocked, what a powerful demon spirit, is it possible that he still knows how to be invisible?

Long Yuchen's body stood slightly in the air three feet above the ground, and the golden light around him burst out, instantly illuminating the surroundings in a golden color, everything could be seen clearly, but there was nothing, very strange.

Glancing around, Long Yuchen found that the aura on the left side was very eerie and full of evil spirits, his eyes were slightly suspicious, and he introduced the magic trick with both hands, and suddenly two strange lights appeared in his hands, one blue and one gold, and pressed down slightly, and the ground collapsed in an instant.

Immediately after that, the astonishing energy instantly dispersed, especially on the left, which was taken care of by him, and under the strength, the ground was turned up one after another, forming a true yuan wave with Long Yuchen as the center, rapidly spreading around, and instantly swept everything.

In mid-air, the loud sound was like thunder, as if the sky was falling apart, and the momentum was amazing.

However, after the turmoil, nothing appeared, Long Yuchen thought for a moment, and then walked to the left.

"Click"

There was a soft sound under his feet, and he stepped on a dry bone, according to the degree of corrosion of the bone, this should be a person who has died in the past hundred years, but the person who can come here can be regarded as a relatively high cultivation in his life.

Walking around the bottom of the pit, Long Yuchen suddenly found that there were a little scarlet blood eyes around him, all of them were demon beasts that he had never seen before, some of them were extremely tall, some were amazingly long, and all of them were firmly staring at Long Yuchen, as if they were looking at their own food.

Long Yuchen looked at it carefully for a while, fortunately, they were all weak demon beasts that had just entered the stage of desecration, and they could not pose a threat to Long Yuchen, which also made him feel a little relieved.

Long Yuchen searched here for an hour, and then continued to walk, wanting to explore the deepest part of the cavern.

In this way, he walked out for five thousand meters underground, but still did not reach the end, this cave seemed to lead to the netherworld, dark and lonely.

Walking out for another three thousand meters, Long Yuchen couldn't help but gasp, the bottom of the cave that is eight thousand meters long is enough to be called the underground world, but this has not yet reached the end, what is this concept?

However, why is there only one exit? Because Long Yuchen has walked to the present, he still has not found any other entrances.

His feet didn't stop, and he advanced nearly 10,000 meters, and Long Yuchen was about to come to the end, when suddenly he heard the sound of rushing water, and the mysterious yin and evil aura was also more fierce than just now, making people uncomfortable.

Under this yin and evil aura, Xiao Ling'er, who had been stable all the way, also became restless, and when he was on Long Yuchen's shoulder, he straightened up from time to time, and faintly, an indescribable strong aura slowly rose from its young body.

"Xiao Ling'er, are you okay?" asked Long Yuchen with a frown.

"It's okay, I just feel that my blood is burning and boiling, as if I am approaching inexplicable danger, let's keep walking" Xiao Ling'er said in a rare and serious manner, with a mature tone, with a hint of command, which made Long Yuchen feel strange and worried

After hesitating for a moment, Long Yuchen still chose to move forward, he was now desperate to find out what caused Xiao Ling'er to have this situation, which made him very uneasy.

At the end, there was no road ahead, only a deep hole straight down, from which the sound of water came out.

Long Yuchen looked down and felt that the underground river was very cold, like a blunt knife scraping flesh, making his skin sting.

Walking here, Xiao Ling'er was already floating in the air, covered in colorful light, and even more black and white, rising from the sky, turning into a black and white crown, appearing above Xiao Ling'er's head, Long Yuchen knew that it was made of yin and yang.

"It's weird, it's weird, and the evil aura is much thicker" Long Yuchen's heart became more and more uneasy.

At this moment, Xiao Ling'er didn't say a word, didn't pay attention to Long Yuchen, and suddenly jumped down, which made Long Yuchen puzzled and even more uneasy, the current Xiao Ling'er is too strange!

Long Yuchen didn't think about it anymore, and then jumped in with a puff, moving forward in the underground dark river, it was impossible for him to let Xiao Ling'er go into danger alone.

The river water was cold and biting, he used the true yuan to protect him, he still felt the cold, and after walking for about dozens of miles, Long Yuchen already felt that he couldn't support it anymore, and then he found that the dark river had become shallow, and he came to the edge to gradually lose the cold just now.

However, there was no Xiao Ling'er here, Long Yuchen gritted his teeth and continued to move forward.

Along the way, he found an abnormal phenomenon, the direction of the underground dark river remained unchanged, and it went straight forward, and Long Yuchen walked along the edge for another twenty miles.

In the end, he traveled a full forty-nine miles along the underground river before finally stopping.

Because, at this moment, he felt a great danger, a large funnel-like black hole appeared in front of him, and all the underground rivers flowed into it, as if it would never be able to fill it.

At the same time, the black hole was constantly spewing out a thick evil aura, which was exactly what Long Yuchen felt when he came down, and he thought that coming here was the source.

For some reason, after arriving here, Long Yuchen shook his spirit, and the huge black hole in front of him that seemed to be like a big funnel seemed to be able to devour his mind, making him feel creepy.

And just ahead, there is a lonely mountain across the land at the edge of the black hole, blocking the way, like a dragon, winding, towering, enclosing the black hole in the center, like a guard, but also like a block!

Coming to the top of the mountain, Long Yuchen finally found Xiao Ling'er's figure. When he came to its side, Long Yuchen found that Xiao Ling'er's bloody eyes were confused at this time, as if he had lost his mind, and a pair of bloody eyes were staring at the depths of the black hole.

Following Xiao Ling'er's gaze, through the rising yin and evil qi, Long Yuchen saw that under the black hole that he didn't know geometry, there was a huge stone platform, and there was a pearl the size of a fist, which illuminated the surroundings brightly.

There is also a blood coffin in the middle of the stone platform, surrounded by four stone statues, all of which are guards with weapons in hand, each of them is in full battle, and the swords are all in place.

Outside the four guards, eight more patterns appeared, carved on the ground, all of them were some vicious-looking demon figures, like the legendary ghosts, very terrifying.

Long Yuchen used his divine power, his eyes were like electricity, he carefully looked at the black hole below, and soon found that there were piles of white bones on the ground, and even there were many white bones floating in the water next to him, and it seemed that there were at least hundreds of corpses. This made Long Yuchen feel a chill down his spine, knowing that there must be a secret hidden here, otherwise there would not be so many people's bones piled up.

His eyes quietly walked around the blood-colored sarcophagus in the middle, and a trace of surprise appeared on Long Yuchen's face.

This place is full of evil energy, full of yin energy, but it is also full of spiritual energy, and all the spiritual energy here is gathered on the blood coffin, what is hidden in it?

Looking carefully at the eight patterns and the four guards, Long Yuchen understood that there must be some secrets and dangers hidden here, otherwise he would not have been standing in it, and he had not been taken away for so many years.

After pondering for a while, Long Yuchen decided to give it a try to see how powerful this formation was, so he could make plans again.

Long Yuchen raised the artistic conception of the sword, and suddenly a sonorous sound sounded, and an extremely sharp and powerful sword qi appeared on Long Yuchen's right hand, expanding and stretching.

Long Yuchen waved his right hand, and the powerful sword qi sandwiched the power of the mountain cracking stone, and instantly attacked the sarcophagus in the middle of the black hole, and at the same time, Long Yuchen's body quickly rotated one hundred and eighty degrees, and the whole person appeared on the other side, with golden light flashing around him, firmly protecting his body.

I saw that Long Yuchen's extremely powerful attack instantly hit the blood-colored sarcophagus, but when it was still three feet away from the blood-colored sarcophagus, the eight demon patterns on the ground instantly emitted dazzling light, forming an air cover, firmly protecting the blood coffin inside.

At the same time, the four guards inside instantly came to life, each wielding their weapons, and instantly burst out with four-color brilliant brilliance, forming a four-color magical gas cover, circulating endlessly, forcibly blocking Long Yuchen's powerful blow, without any damage!