On the mountainside, there is a stone cave on the east side of the four-cornered diamond, blowing gusts of gloomy wind, and from time to time there is a roar and scream. Such a desolate and lonely peak, who is unwilling? Who's roaring? Weird, weird, who knows?

The entrance to the cave is small, less than three feet, but the interior is gradually wider, winding and circling, interweaving countless forks in the road, like a labyrinth, making it difficult to discern the direction.

Walking along a wide passage for dozens of zhang, an octagonal stone chamber is exposed in front of you, about three zhang high, ten zhang in diameter, there is a passage on each side, a total of eight entrances.

In the center of the stone chamber, an octagonal pool was filled with a strange green mist, full of evil and eerie smells.

On the ground, eight patterns are evenly distributed around the pool, some of which resemble Bagua diagrams, but the carved images are very mysterious, all of them are some rare strange monsters, unseen and unheard of.

In the stone room, the breeze undulated, blowing those green mist, making the surroundings light green, with an indescribable mysterious smell.

In the pool, there was a loud roar, and the voice was full of rage, as if it was suffering some great pain, so wild, like a wounded beast.

This continued, like an eternal existence, echoing through the labyrinthine caverns.

I don't know how much time passed, but the piercing roar gradually weakened, and the fog in the stone chamber disappeared, revealing a two-zhang pool, and a person sitting in the center, only a back was exposed.

In the pool, the water was dark green, looking extremely dense, and the tiny green rays flickered slightly, pouring into the man's body in a steady stream. The scene lasted for a long time, and when the dark green water faded, the man suddenly stood up and slowly turned his head.

In the green mist, a pair of bright eyes flashed with a vicious light, giving people a sense of evil and terror. With such eyes, as sharp as a knife, who could he be?

Stepping out of the pool, the man walked slowly, revealing his true face after passing through the faint green mist. It turned out that he was the Yin Emperor, no wonder he was so evil and domineering.

Looking around, the Yin Emperor's handsome face was full of cruelty, and he roared angrily: "Lu Yun, I won't let you have a good time, just wait." After saying that, he disappeared in a flash, and he didn't know where to go.

In a moment, the light in the stone room flashed, and a black dragon carrying a figure appeared out of thin air and slowly fell. This dragon has a strange aura, it is the Netherworld Demon Dragon, and the one on its back is Thunder Sky, but why did it come here?

Looking at the water in the pool, the Netherworld Demon Dragon roared slightly, and Lei Tian, who was seriously injured when he heard it, was stunned for a moment, and couldn't help but ask: "You let me enter the pool to absorb that evil qi of heaven and earth?" ”

The Nether Demon Dragon nodded slightly, and responded to him with a soft whistling in his mouth. Lei Tian was a little disgusted, shook his head and said: "Evil Qi, the root of all evil, I don't want to ......"

With a low roar, the Nether Demon Dragon glared at him, and a domineering consciousness went straight into his chest. Lei Tian's body shook and said with a strange expression: "Okay, I'll promise you." After speaking, he automatically walked to the pool and sat down slowly.

The Nether Demon Dragon rolled its body in a circle and lay on the ground around the pool water, the dragon head raised its head slightly, intentionally or unintentionally absorbing the green mist in the stone chamber, and slowly closed its eyes.

In the pool, Lei Tian's whole body trembled slightly, and the Thunder God Technique in his body repelled the evil power in the pool water, which made him a little uncomfortable. Fortunately, this situation only lasted for a moment, and after a while, Lei Tian's body that had been assimilated by the Nether Demon Dragon transformed, actively absorbing the evil qi in the water to nourish the seriously injured body.

Time quietly went away, and when Lei Tian absorbed enough evil qi, although the injuries in his body improved greatly, his personality gradually changed.

Originally, he was even a masculine body, but he had fought with the four spirit beasts before, and fused the nine evil qi on the Netherworld Demon Dragon's body, and the true element in his body had both good and evil, which made his personality gradually gloomy while his strength increased greatly.

Now, in this strange pool, he has absorbed a large amount of evil aura, and immediately suppressed the masculine energy in his body, making him gradually become evil and gloomy.

Beside the pool, the Netherworld Demon Dragon opened his eyes at some point and was looking at him quietly, with a bit of mystery in his eyes.

Lei Tian's expression was mysterious at this time, his half-red and half-green body had all turned green, and a layer of fluctuating blue-green light appeared around his body, which was speeding up according to the increasing frequency.

When this layer of green light completely submerged Lei Tian's body, at that time, the brilliant light in the stone room flashed, and only Lei Tian roared wildly, as if something terrible had happened.

After a while, the voice subsided, the green light dissipated, and I saw that Lei Tian had returned to his half-red and half-green appearance, and his appearance was not abnormal, except for a few dark green brilliances flashing in his eyes from time to time.

With a cold smile, Lei Tian's body was lifted from the ground, flipped in mid-air, and fell on the demon dragon, and said in a sinister tone: "The aura here is very unique, with a special aura. ”

The Nether Demon Dragon let out a low roar, and its coiled body automatically unfolded, emitting a dizzy white light, which instantly flooded the entire stone chamber and disappeared mysteriously with Thunder Sky.

Everything was a blink of an eye, and when the glare wore away, the stone chamber returned to its calm, silent except for a faint green mist that rose and fell in the wind.

However, I don't know if it's because of the special location here, or if it's a coincidence, not long after the Nether Demon Dragon left with Thunder Sky, Tiansha actually came here again. Seeing the pool in the stone chamber, Tiansha's eyes lit up, and he said to himself: "It turns out that the legendary 'Heavenly Yin Vein' is here, and God really helps me." After speaking, he fell into the pool and teased cross-legged.

The appearance of the Heavenly Demon changed the environment in the stone chamber, causing the originally green pool water to gradually turn dark red, and a faint blood mist flowed in the air, filled with an astonishing blood evil aura.

This scene lasted for a while, and when he opened his eyes, the blood in the entire stone room was translucent, and the blood trembling rapidly was like thousands of poisonous insects, flowing quickly and making a whistling sound.

Standing up, Tiansha's eyes were slightly different, and he said in surprise: "It's strange, there is actually the breath of the Yin Emperor and the Netherworld Demon Dragon here, could it be that they have already found this place one step ahead of me?" In his own words, Tiansha paused for a moment, and then passed away quietly.

Mysterious peaks, quirky stone chambers. What kind of mysterious place is this heavenly yin vein in the mouth of the heavenly evil? Why did the Earth Yin, the Heavenly Evil, and the Demon Dragon all come here together?

Everything is a mystery, and who can tell but them?

Time continues to pass, and in the originally quiet stone room, the brilliance suddenly flashes, who will come back this time? The result was surprising, it was actually Nether Demon Dragon and Thunder Sky, why did they return for the second time?

Whispering softly, the Netherworld Demon Dragon shook the thunder sky on his back into the pool, and looked at him intently, with a faint look of anticipation in his eyes.

Lei Tian didn't know this, he just felt that the water in this pool had changed a lot, containing infinite blood and evil qi, which had some kind of damage to his body, making him irritable and roaring non-stop.

At the edge of the pool, the black rays around the Netherworld Demon Dragon converged, and a closed barrier was laid around the pool, firmly suppressing Lei Tian's body, not giving him a chance to resist.

Soon, the angry Lei Tian's body glowed red, and a large amount of bloody qi contained in the pool water was being instilled into his body, transforming his body. The process was extremely uncomfortable, and the severe pain that accompanied him made him look like crazy, and his mouth let out a heart-rending scream.

The Nether Demon Dragon's eyes were ruthless, and he didn't have the slightest intention of stopping, just holding him down like that, observing his situation. Finally, in the midst of a long scream, Lei Tian fainted.

At that time, his body was sometimes blood red, sometimes blue, sometimes the two colors alternated, sometimes they merged into one. In this way, several times in a row, finally the light on Lei Tian's body dissipated, and the whole person returned to normal, looking no different from ordinary people.

At this point, the pool recedes automatically, leaving a dry groove that tells the story of what happened.

The Nether Demon Dragon let out a soft roar, with a bit of joy, and let out a gentle force to hold up the unconscious Thunder Sky, and took him away in a flash. Suddenly, the stone chamber returned to its tranquility, but the fog that had been lingering had disappeared at this moment.

In this way, the stone chamber is no longer mysterious, and the empty piece seems very deserted.

Hurry to come, hurry to go. Neither the Yin Emperor nor the Heavenly Demon Demon Dragon had ever stayed, but the Netherworld Demon Dragon had brought Lei Tian here twice, what was its purpose?

The mutation on Lei Tian's body is very weird, what does that imply? Between him and the Nether Demon Dragon, who controls whom?

These seem ordinary, but they hide great secrets, what kind of ending will they bring to the world in the end?

……

Over the mountains and mountains, chasing all the way, Lin Yunfeng took Xu Jie to the secluded deep mountains and valleys, looking for Yi Yuan's whereabouts, and unconsciously, two days passed.

In the past two days, the two have crossed most of the Desemi-Shenzhou, chasing from east to west, and from west to north, and now they have come to the outside of Yinshan.

Looking at the vast grassland, Lin Yunfeng sighed lightly: "There is no here, it seems that we are looking in the wrong direction." ”

Xu Jie comforted: "Don't be discouraged, look at the point." Although we walked a lot in the past two days, we were all in a hurry, and we did not look closely, and it was probably staggered somewhere along the way. ”

Lin Yunfeng smiled bitterly: "Along the way, I looked very carefully, and the Yin and Yang Technique would never let go of any clues, but I didn't gain anything at all. At the moment, only the south has not been found, so let's go south. ”

Xu Jie smiled softly, nodded in agreement, and accompanied him to turn around and go south.

Flying between the white clouds, watching the clouds on both sides move back rapidly, Lin Yunfeng was in a slightly better mood.

Beside him, Xu Jie paid attention to his situation, and when he saw him smiling, he couldn't help but say, "Yun Feng, if you find Yi Yuan, what are your plans?" ”

Lin Yunfeng thought for a while and replied: "Naturally, we will go all out to expand Yi Garden, recruit disciples all over the world, and make it the largest sect in the cultivation realm, so as to comfort the spirit of the master and uncle in the sky." ”

Xu Jie said: "If you find Yi Yuan, it is far away, will you move it back to Xishu?" ”