Cheng Ling keenly felt that what the ghost Daoist was talking about was not a yin spirit, but a yin spirit. After a long silence, he asked, "Dare to ask Lord Ghost Dao, what is the difference between this Yin Soul and Yin Spirit?"

The ghost Taoist explained: "Yin spirits are just the first to enter the Yin Cao Underworld after the death of all things in heaven and earth, and they still retain a trace of their consciousness before death, and they have not completely transformed the power of yin and cold in their bodies. Therefore, their sanity is not high, and their cultivation is generally low. ”

"But the yin soul is different, they have been cultivating in the underworld for tens of millions of years, and they have already completely transformed the immortal spiritual power in their bodies, the netherworld, the power of yin and cold is the foundation of cultivation, here, only the power of yin and cold is the king. Besides, after so many years of evolution, their sanity has long been perfected, and they are no different from ordinary human cultivators!"

Cheng Ling suddenly felt that the enemy he was going to face was not only powerful, but also not much different from humans in terms of intelligence. It can't be controlled as simply as before. In other words, he was facing almost a monk from the Nine Star Earth Immortal Realm or even the Heavenly Immortal Realm.

Although it may be very dangerous, it can only be done for the sake of Yang Hongqiu. He said categorically: "The junior agreed!"

The ghost Taoist nodded appreciatively and said, "Okay, for a period of three months, here is the information of those ghosts, as long as you capture them all, the old man will fulfill his promise." ”

Cheng Ling bowed and said, "Thank you seniors, the family teacher's injury should not be delayed any longer, and the juniors will leave!"

After speaking, he went straight back to the main hall and called Su Yi, and the three of them left.

Out of the palace, Su Yicai asked softly, "Brother Cheng, but ask about the whereabouts of the herbs." ”

"Well, I only know the whereabouts of the Soul Restoration Grass. As for the Yin Yang Grass, we must first help the Ghost Daoist catch ten Yin Spirits, and we will search all the way along the water of Lethe River, and then come back to ask for advice after completing the task. ”

"Ghosts? ”

"You can say that, but the Shade is much more powerful than the average goblin, so be careful then. ”

Su Yi nodded silently, and the three of them marched all the way along the Lechuan River.

The waters of Lethe are a tributary of the River Styx, and they are huge. The river is so wide that you can't see the edge of the river, and like the River Styx, the water gradually deepens in color from the shore to the center, turning into a deep black.

Along the way, the two of them exuded their divine consciousness to the maximum, searching everywhere for traces of the Soul Restoration Grass. It's a pity that he didn't find it after walking for most of the day, Cheng Ling was silent for a moment, and one of the ghosts said by the ghost Taoist was in a valley next to the riverbank.

In this case, it is better to go and see it first, and also complete the things entrusted by the other party as soon as possible. At that moment, he changed direction and walked towards the valley beside him.

Soon, the three of them came to the outskirts of the valley, and saw many yin spirits and ghosts scattered around! The two did not want to cause trouble, and avoided the ghosts and headed deeper into the valley.

After another hour of this, the scene in front of me suddenly became gloomy. The cold air in the air is even stronger, several times more than in the outer world.

Cheng Ling cautiously approached the depths of the valley, and soon saw that there was a cave on the other side of the valley. Before he could walk to the front of the cave, a voice came from inside: "Who is it that disturbs the cultivation of the deity!"

Suddenly, an extremely cold yin qi rushed to his face, and then, a yin soul as tall as one zhang and with black lacquer chains tied to his body walked out of the cave and looked at Cheng Ling and the three of them coldly.

Cheng Ling didn't say a word, two fingers and a point, and two thunder arcs attacked. That yin soul was frightened, the thunder system exercises, and the other party was definitely not a monk on the Xudu Continent. But I have lived in the Xudu Continent for thousands of years, and I have never seen a human monk coming!

But now is not the time for him to pursue it. As soon as his right hand was raised, the chains tied to his body moved, forming a chain cage from the void and covering Cheng Ling.

"What rice!Nebula chains?" Cheng Ling was frightened, and almost screamed, this yin soul can be, the chains on his body are used in this way. However, if he ran into himself, he was unlucky, and let his chains fall wildly, Cheng Ling just kept typing out the seal in his hand.

The next moment, dark thunderclouds covered the sky above the two of them, and thumb-thick thunderbolts shot down from the dark clouds.

The Yin Spirit screamed bad luck, his own chains couldn't trap the other party's body at all. Not only that, these thunderbolts hit the chains, but also transmitted to themselves, and a burst of crispy numbness struck, which was simply immortal!

Cheng Linghao did not stop, the Heavenly Thunder Technique, the Mine Technique, the Demon Thunder Technique, the Dou Thunder Technique, all kinds of thunder spells bombarded the past endlessly, and soon a layer of fine thunder power grid was laid in the valley.

The yin soul complained again and again, but the exercises were compatible, even if he and Cheng Ling's cultivation were similar, they were still pressed and beaten. In desperation, he opened his mouth wide, and a violent roar echoed through the valley.

Su Yi swept the formation on the side, saw the vision in front of him, his face changed, and said, "Brother Cheng, it's not good, he's summoning other Yin Spirits to come and help." ”

Of course, Cheng Ling knew, but if he wanted to maintain the suppression of the Yin Spirit, he had no time to be distracted, so he could only hope that the other party would not last long. It's just that I didn't expect the yin spirits in the valley to come very quickly, and suddenly a large group of yin spirits poured in from the outside, blocking the exits densely.

Cheng Ling was shocked and turned her head to look. I saw that Su Yi had already fought with those Yin Spirits, and Yang Hongqiu was placed by him on the stone wall at the edge of the valley, and he alone blocked the frontal attack in three directions.

"Hmph, boy, you and I have no grievances, I want to be the lackeys of the ghosts, this is an example!"

Cheng Ling's eyes froze, and murderous intent flashed in his eyes. As long as you kill the Yin Spirits in front of you, the rest of the Yin Spirits will not be a problem. He connected his two fingers, and several great lightning spells fell from the sky.

The Yin Soul was frightened, and hurriedly wrapped the chains in his hands densely around the top of his head into a net, and the Great Lightning Falling Technique bombarded the chain giant net, canceling out most of the power. The body of the yin soul flashed continuously, and it escaped the bombardment of purple thunder and lightning in a few vertical leaps, which was simply a near-death death!

As soon as his body moved, he came to Cheng Ling's side in an instant, the thunder cultivator was too terrifying, he must not let the other party release an attack at a long distance, he must entangle him. One of the remaining two monks is not very high, and the other seems to be in a coma, and those yin spirits will definitely be able to take it down quickly.

Cheng Ling was anxious, so entangled that he didn't know when he would be able to get out. Moreover, Su Yi and Yang Hongqiu couldn't hold out for long in the face of those many yin spirits.

As soon as his fingers changed, the immortal spirit power in his body flowed wildly, and the slightest cold qi permeated his body, and with a flick of his fingers, hundreds of ice needles instantly conjured up, and every time he popped up, dozens of yin spirits died.

The yin spirit was taken aback, and let out a roar again, summoning the yin spirits outside to surround and suppress him, while he was chasing Cheng Ling closely, preventing him from having more space to cast spells.

In less than a moment, more and more yin spirits poured into the valley, Su Yi resisted very hard, and had no choice but to retreat sharply, leaving only a zhang of space in front of him, and Yang Hongqiu behind him was still unconscious.

A thought flashed through my heart: Are the three of us going to die here?

At this moment, a sharp sword light fell from the sky. The next moment, Su Yi had a dragon-shaped sword weapon more than three feet long inserted in front of him, and the long sword exuded a trace of purple thunder.

Cheng Ling's body flickered, and he was forced to get rid of the entanglement of the yin spirit, and he no longer dared to preserve his strength. In the special environment of the Netherworld, only the Dragon Feather Sword is used. This sword, which has reached the level of a superb spiritual weapon, itself has a strong restraint effect on evil things.

Moreover, he also learned an extremely strong thunder sword technique from the golden page, this sword technique is named the Heavenly Thunder Sword Technique, which is an extremely strong attack sword technique for Monk Lei Linggen. A few vertical leaps passed through the dense Yin Spirit Encirclement and stopped in front of Su Yi and Yang Hongqiu.

Su Yi was shocked, he didn't expect Cheng Ling to hide such a long sword. Looking at the momentum exuded by the long sword, it is absolutely extraordinary. However, his shock came too early, and when Cheng Ling's sword technique was cast, the yin spirits surrounding him were killed one by one, and a ten-zhang square open space was quickly cleared in front of him.

Yes, after many years of enlightenment, Cheng Ling's kendo realm has reached the peak of the third layer of the heart sword, and the forbidden area of swordsmanship is derived from seven zhang to ten zhang! All yin spirits within ten zhang will die if they touch it.

In the end, Cheng Ling still used the swordsmanship he was good at to fight the enemy, one was that the Yin Soul had extremely strong melee combat ability, and the other was that the thunder swordsmanship plus the Dragon Ling Sword had the power to fight even against the Holy Lord.

The Yin spirits in front of them fell like stubbles of wheat, and each Yin Spirit turned into a shining ball of light when it died. Su Yi knew that these were the living souls of the Yin Spirit, which was exactly what Yang Hongqiu needed.

He followed behind Cheng Ling, constantly collecting those living souls, and in less than a moment, he got more than a thousand.

The killing continued, and waves of yin spirits were killed, but there were too many yin spirits in the valley, as if they were endless, and they were emptied and immediately replenished, and they kept pressing towards her.

A cold light appeared in Cheng Ling's eyes, and with a few fingers, the Long Ling sword was suspended in mid-air, and then the finger changed, and the long sword was dragged up to the sky and slowly rose, and every time it rose a distance, the power of thunder and lightning emitted from the sword body became more intensive.

This kind of thunder and lightning is not a simple thunderbolt, not only fuses its own three Qing gods and thunder artistic conception, but also includes the sword intent, the power of thunder and lightning is violent, sharp, and everything is pierced, and a large number of yin spirits die!

In just one hour, tens of thousands of Yin Spirits had died under Cheng Ling's sword. He kept taking out the elixir from the ring to replenish the consumed immortal power, if the netherworld had a certain impact on him, it was that the immortal spirit power in the void was extremely thin, and it was difficult to replenish it, so he could only rely on the power of the elixir.

But even so, the Yin Spirit was killed in large numbers. Later, those yin spirits were afraid, but they surrounded Cheng Ling and the three of them from a distance, and they didn't dare to attack easily.

Cheng Ling secretly breathed a sigh of relief, his divine sense swept away, and the long sword suspended in the air slashed through a strange arc and headed towards the Yin Soul to kill.

This time, he wasn't afraid that the Yin Spirit would start hand-to-hand combat again, but he couldn't ask for it.

"Boom!"

The dragon feather sword and the chain collided together, and the opponent's chain was not even severed, but the yin soul was also beaten back by the powerful impact!