The yellow-robed monk was horrified upon seeing this, and his body suddenly stopped and he quickly raised his hand.

In this fierce confrontation, the yellow-robed monk encountered an unprecedented crisis.

A huge brick several meters in size smashed towards the white shadow mercilessly, but the white shadow penetrated the huge brick like a ghost and approached the yellow-robed monk in an instant.

Faced with this sudden attack, the yellow-robed monk hurriedly used his ancient treasure. A blue token flashed with mysterious light and emitted a blue mist, trying to trap the white shadow.

However, the white shadow mysteriously dissipated in the blue mist, catching the yellow-robed monk off guard.

Just as the yellow-robed monk was about to escape, an invisible force suddenly descended, and several shadowy figures leaped out from the white mist, easily penetrating his protective aura and entering his body.

The yellow-robed monk suddenly felt his Nascent Soul tighten and the blood in his body boil. This was his last perception in the world.

Then, his eyes went dark and he lost consciousness.

In a silent mountain forest, a yellow-robed monk is confronting a mysterious force.

Suddenly, his face shrank at a speed visible to the naked eye, and in the blink of an eye, it turned into a skeleton-like corpse.

The Yuanying in the mummy was completely devoured by a white shadow, and then four white shadows flew out of the mummy, transformed into four skulls, and ate up the remaining corpse.

At this time, another white shadow also flew over slowly, and five white shadows stood side by side.

The sounds of explosions and fighting in the manor below had stopped, and an old man in a black robe flew over.

He saluted respectfully to Bai Ying and reported that all 72 cultivators of the He family had been killed, but there were still more than 300 direct mortals alive.

"Kill them all." said the mysterious monk coldly.

"Yes!" The old man in black robe agreed and was about to fly down to carry out the order.

The mysterious monk said in a deep voice:
"Wait a minute! Elder Ge mentioned in his previous letter that the cultivator who killed our four elders and stole the Yinluo Banner has most likely sneaked into Southern Xinjiang."

"Now that the matter has been concluded, we will immediately mobilize all forces to hunt down this thief."

"I will be stationed in the southern border for a year. If I find any trace of him, I will kill him immediately. How can I allow outsiders to get their hands on our sect's most precious treasure?"

"Yes, nephew, I will arrange it right away." Upon hearing this, the old man in black robe became serious, and after agreeing respectfully, his figure turned into a black light and quickly fled to carry out the order.

After the black-robed old man left, the mysterious monk murmured to himself:

"He was able to kill the fourth junior brother holding the Yin Luo Banner and escape from the pursuit of the Tianlan Holy Temple. This person's strength is far beyond the He family and is indeed a formidable opponent."

"It seems that Chen Yun is quite extraordinary and worthy of my personal meeting."

In the wind cave at the bottom of the Yin-Yang Cave, Chen Yun faced countless moth-like attacks.

Although these moths were small, they were ferocious. When they flew towards Chen Yun, they were easily chopped into pieces by his golden flying sword and turned into black gas and dissipated.

Seeing the moths flying one after another, Chen Yun summoned a swarm of gold-eating insects to deal with them. After coming into contact with the gold-eating insects, the black moths fell one after another and were at a disadvantage.

Chen Yun took the opportunity to retract his flying sword and move deeper into the cave.

Although the black wind around him was extremely strong and his spiritual sense could only detect a few feet away, after he got rid of the moth's entanglement, he was no longer afraid of this environment and continued to move forward to explore.

Chen Yun walked to the center of the wind cave, his eyes as fast as lightning, instantly penetrating the surrounding darkness.

He looked around, frowned slightly, and then changed his direction.

Before he had walked far, he waved the object in his hand lightly, and a moonstone surrounded by green spiritual energy slowly rose into the air, illuminating the area within dozens of feet around it.

In this bright light, he discovered a jet-black crystal stone half-embedded in the opposite stone wall.

What was amazing was that the crystal stone kept flashing a dim light, and countless black moths emerged from it, frantically flying towards Chen Yun and the glowing moonstone.

However, before these moths could get close to their target, they were intercepted and destroyed by a group of gold-eating bugs.

Chen Yun whispered to himself: "This is the third crystal stone. I didn't expect it to be able to transform into a Yin Ming Moth with the help of Yin Qi. It's really strange."

Just as he was looking at it carefully, the black crystal opposite suddenly emitted thousands of black rays of light, followed by a slight sound, and a huge moth-like creature emerged from the black rays of light.

In the silent atmosphere, as soon as the moth appeared, its pair of blood-red eyes locked onto Chen Yun fiercely. Chen Yun raised his eyebrows slightly, and his fingers flicked as fast as lightning.

A golden arc shot out with the force of thunder, instantly smashing the giant moth into pieces.

Even though this giant Yinming moth might possess some strange magical powers, it could not resist the evil-repelling divine thunder that was specifically designed to defeat ghosts.

Afterwards, Chen Yun no longer hesitated, and a huge hand with flashing green light appeared in front of him out of thin air.

Then with a "bang", the crystal was grabbed out of the stone wall by a big hand.

The moment the crystal was taken out, the extremely fierce wind around it suddenly weakened by a lot.

The black moths that were fighting fiercely with the gold-eating bugs turned into black gas after a flash of black light and disappeared into the wind.

Chen Yun seemed unaware of the situation and walked straight ahead.

Although the previous two crystals are not as large as this one, they were also found in the wind cave, and similar situations will occur after they are taken out.

At first, this situation amazed Chen Yun, but now he no longer cares about it.

Looking back, since the last time Chen Yun found the old man surnamed Fu and re-blessed the Purple Ghost Divine Light, he and Bai Yaoyi acted separately.

Without this woman's company, Chen Yun could naturally use many methods without any scruples.

Recently, Chen Yun encountered high-level ghosts during an expedition deep into the cave, but they were all easily eliminated by his flying sword and evil-repelling divine thunder.

His exploration speed far exceeds that of other people on the same team, and his efficiency is remarkable.

However, despite the fame of the Yin-Yang Cave, few high-level cultivators are willing to explore it in depth, and there is a reason for this.

Although Chen Yun and his team had been deep in the cave for a long time, they had gained little, only finding some ordinary ores and broken magical tools.

While chasing a fleeing ghost, he accidentally broke into a small wind cave and found a black crystal. From then on, he became interested in these places that were originally ignored.

The inside of these wind caves are filled with raging cold winds, making it difficult for Yin Zhi Ma to survive. Moreover, entering them will accelerate the consumption of mana, and even with the support of powerful protective spells or spiritual fluids, it will still be difficult.

However, Chen Yun had no fear at all, relying on the protection of the evil-repelling divine thunder and the ability of the ten thousand year spiritual liquid to replenish his magic power. He even developed a strong interest in those mysterious crystals and explored them in depth many times.

Chen Yun had never seen this kind of black crystal in ancient books. Its appearance was similar to black diamond, but its properties were completely different.

The hardness of this black crystal stone is far less than that of the black marrow diamond. Inside it is a strange wind-attributed crystal stone that has condensed in the Yin cave over the years, and it also contains a large amount of Yin energy.

This kind of black crystal is extremely rare. After searching dozens of wind caves, Chen Yun only found three pieces. The first two fist-sized black crystals did not have the ability to transform into ghosts, but the one in front of him was unusual.

Chen Yun narrowed his eyes and carefully observed the black crystal that no longer reacted, then cast a forbidden talisman to seal it. He then carefully placed it in a large jade box and put it into the storage bag.

He carefully searched the giant wind cave again, and after confirming that nothing was missed, he left the place and returned to the passage.

After walking forward for several hundred feet, they found a small cave and the passage became gradually narrower.

Finally, a stone wall covered with ice appeared in front of him. Chen Yun sighed, but still stepped forward, and a flash of green light in his hand stabbed at the stone wall.

In front of a mysterious stone wall, a green light flashed in and instantly disappeared into the depths of the stone wall.

Chen Yun did not stop. He placed his palm lightly on the stone wall and released his spiritual sense to explore the inside.

After a moment, confirming that the stone wall was solid and had no hidden mechanisms or restrictions, he turned decisively and flew back the way he came at an extremely fast speed.

Although they have not yet fully explored the entire scope of the Yin-Yang Cave, judging from the various evil spirits encountered along the way, they are gradually approaching the core area of ​​the cave.

Unfortunately, however, no trace of the legendary Yinzhi horse has been found so far, which makes Chen Yun a little anxious.

Considering the difficulty of breaking through the middle to late Nascent Soul realm, Chen Yun knew that this journey was of great importance.

Although he had never experienced such a challenge himself, he knew that the process was extremely difficult.

Those who can successfully reach the middle stage of Nascent Soul cultivation are already rare, and the number of people who can successfully make further progress in the entire Tiannan region is even fewer.

Although Dajin has a large number of late-stage Yuanying cultivators, they are still rare among the many sects and practitioners.

When venturing into this place this time, Chen Yun not only quickly refined the Three Flame Fan as a self-defense item, but was also determined to return with something in return.

Although Chen Yun has the Dianfeng Peiyuan Gong as a means to break through the bottleneck, he still has no confidence whether he can successfully break through to the late Yuanying stage in the future.

However, when the pill that could condense the Nascent Soul appeared, he would never let go of this opportunity.

If he can't find the Yin Zhi Ma in the Yin Yang Cave this time, then he can only try to get the formula of the Peiying Pill from the old man surnamed Fu.

Although the hope is slim, as long as he has the recipe in his hands, he will naturally look for other ways to obtain Yinzhima.

The Yin-Yang Cave is not the only place in the world where yin energy gathers.

While flying, Chen Yun was thinking about this question calmly in his mind.

Suddenly, his expression changed and he stared ahead, only to see a flash of light on the opposite side and a green light flying towards him.

Chen Yun quickly waved his sleeves, and a blue cloud flew out, wrapped around the green light and pulled it down.

After the green light converged in the sunset glow, a small green sword appeared with a red jade slip inserted on it.

Chen Yun pursed his lips, raised his hand to take down the jade slip, and threw the flying sword into the air. The green sword made a crisp sound and disappeared in the black wind.

Chen Yun ignored the scene around him and concentrated on immersing his consciousness in the jade slip.

After a moment, he looked happy and whispered to himself:
"Finally found the trace of Yin Zhima!"

Then, he pulled his consciousness out of the jade slip. He flipped his palm and a pale white array disk suddenly appeared in his hand.

Chen Yun tapped the array plate lightly with one hand, and a green light flashed by. The surface of the array plate instantly became as smooth as a mirror, and four light spots of different colors could be vaguely seen flashing on it.

After quickly scanning the positions of these light spots, he immediately put away the formation plate, and his body accelerated instantly, shooting out like an arrow.

Half a day later, Chen Yun arrived at a well-connected intersection.

I saw the big man surnamed Yuan and the old man surnamed Fu sitting cross-legged, facing the eastern passage, and above the old man's head, the purple pearl was floating motionlessly.

Chen Yun was covered in purple light, his speed suddenly slowed down, and he slowly landed on the ground. He then exhaled a breath of turbid air and asked the two people:
"Fellow Daoist Yuan, have you found the Yinzhi horse?"

The big man surnamed Yuan grinned, with a hint of excitement in his eyes:
"Yes, the Yinzhi horse is hiding in this passage. But this creature is very cunning, and it is difficult for me to capture it alone. I have no choice but to temporarily block the exit and wait for you fellow Taoists to come."

"That's good. As long as we know the whereabouts of this spiritual creature, it will only be a matter of time to capture it."

Chen Yun nodded slightly with a smile on his face.

"Junior Sister Chang and Fellow Daoist Bai, please step back for now. We need to wait for a moment."

"Once everyone arrives, our chances of winning will be greater." The old man surnamed Fu said with a happy face.

When Chen Yun heard this, he felt a little relieved and immediately sat down on the spot.

After several hours, the beautiful woman in black and Bai Yaoyi arrived one after another.

After learning the exact news, they were also overjoyed.

The few of them acted without delay. They first carefully arranged several simple magic arrays at the intersection, and then flew into the eastern passage together.

What no one knew was that not long after they left, a faint light suddenly flickered under the ground at the intersection. Then, three black mummies slowly emerged.

The chests of these mummies were empty and they were just skin and bones. Only their eyes flashed a cold green light as they looked emotionlessly in the direction where Chen Yun and the others left.

The group followed the east passage to explore the caves one by one to prevent Yin Zhima from escaping. Only three people entered each time, and the rest stayed in the passage. When they reached the place where the man surnamed Yuan discovered Yin Zhima, it was a small cave.

The beautiful woman in black and Bai Yaoyi stood guard outside, while Chen Yun and the old man went inside to investigate.

There was a faint breeze in the cave, but it was actually warm. In addition to the soft sand, there were several pieces of warm jade ore piled in one corner. There was a faint fragrance in the air, which seemed to be a mixture of medicine and sandalwood.

There were messy horse hoof prints on the ground that were several times smaller.

"It is definitely Yin Zhima!"

The old man surnamed Fu walked around the footprints twice, sniffed the fragrance in the air, rubbed his hands and spoke, his excitement evident in words.

After confirming Brother Fu's judgment, the man surnamed Yuan's face flushed and he firmly expressed his intention to give chase immediately.

The passage was not wide and was obviously a forked path. They decided to approach it step by step and force the target out.

At this moment, a loud noise was heard, the three people's feet shook, and the cave began to shake.

Then, a roar like a raging storm came from outside the cave, and it seemed to be very close.

In this emergency, the three monks simultaneously used their magic power, transformed into three beams of light and quickly left the place. In a flash, they appeared in another passage.

There were footsteps coming from the front, each one shaking the entire passage, accompanied by an alarming roar, and it was obvious that it was the work of the same creature.

They looked at each other, and without further ado, they each took out their magic weapons and prepared to fight with serious expressions.

When the others were blocked by the black wind, Chen Yun had seen a ghost from afar through his pupils flashing blue light. (End of this chapter)