Originally, the construction of the Heart Refining Cave was to remove the inner demons for the disciples in the door, and it was set up according to the realm of the Qi Refining Period at the beginning, corresponding to the first to ninth layers.

However, when it was officially used, the high-level officials in the sect found that the disciples from the first to the fourth layers of qi refining had not yet grown demons, and when they entered the heart refining cave, they would be disturbed by the formations and arrangements in the cave.

Therefore, the caves of the first to fourth floors were directly canceled, and the minimum requirement for the Heart Refining Cave was a disciple of the fifth layer of Qi refining.

In the same way, the ninth-layer Heart Refining Cave will completely stimulate the heart demons, and the disciples who remove the heart demons in this cave are likely to be devoured by the heart demons and explode on the spot, which is quite dangerous.

Therefore, the Heart Refining Cave on the ninth floor has always been closed, so much so that to this day, the iron chains blocking the stone gate are rusty.

When the guard saw that Han Leng was going to continue walking, the cold sweat on his head came down.

Each layer of the heart refining cave is arranged with formations and various magic weapons that can deceive people's hearts, in order to lure out the monk's inner demons in advance.

The formations and magic weapons in the eighth layer of the Heart Refining Cave can even pass through the resistance of the stone wall, which has a slight impact on the monks who are close by, so it is the foundation building period monk who is responsible for guarding the eighth layer of the Heart Refining Cave.

As for the higher ninth-layer Heart Refining Cave, the formations arranged in it could confuse even a Foundation Building Stage cultivator, so this guard would be so nervous when he saw Han Leng continue to move forward.

"What are you going to do?" The guard said in a panic.

Han Leng had already walked to the ninth layer stone gate at this time, he stroked the rusty chains, looked at the guard and said, "Your realm is higher than mine, you should be able to see that I am the realm of the ninth layer of qi refining, of course I want to remove the demon in the ninth layer of the heart refining hole." ”

The guard said: "It's true that you are the ninth layer of qi refining, but the formation in the eighth layer of the heart refining cave can already get rid of your heart demons, and the formation of the ninth layer is too powerful, and it is likely to hurt you when you remove the heart demons, so I advise you not to go to the ninth layer." ”

The guards kindly persuaded each other that refining the heart cave was to force the monk's inner demons out first, and then strangled them with a formation, because during the whole process, the monk and the inner demons were standing together.

Although the formations here are all built to remove the demons, but after the power reaches a critical point, it will directly hurt the monks in the formation, which is very dangerous.

Han Leng shook his head and said, "I am now at the peak of the ninth layer of qi refining, the heart demon may have fully grown, if the formation of the eighth layer cannot destroy the heart demon, then I will inevitably be robbed of my mind by the heart demon." Instead of being unified by the demons, I might as well go to the ninth layer and break through. ”

Han Leng didn't want to get rid of the heart demon on the eighth layer, if all the conditions allowed, he still wanted to refine the heart cave directly on the fifth layer.

But when he has an in-depth understanding of the heart refining cave, that kind of idea of begging for a small bargain is gone, the heart demon will grow with the improvement of the monk's realm, the qi refining period to the foundation building period is the fastest growing stage of the heart demon, and it is also the weakest stage of the heart demon, as long as the heart demon is removed in this period, the cultivation in the future will be much smoother.

If the heart demon is not removed, you must be very careful every time you break through in the future, because the heart demon will come out from time to time to disturb the monk, and if you happen to encounter the heart demon when you break through, you will reverse the aura and go crazy.

Han Leng knew very well the danger of going mad, and he was now approaching the foundation building period, the inner demon had matured, and he couldn't drag it out any longer, only by cutting the grass and eradicating the roots, and never suffering in the future, could he cultivate with peace of mind.

The guard also knew this, but he was still worried that Han Leng would not be able to hold on, and his eyes were full of complicated expressions, and he couldn't make up his mind.

Han Leng didn't want to waste time here, he said, "You let me tell Elder Zhao. ”

The guard had no choice but to take out the sound transmission stone and pass a message to Zhao Yuanshen.

Zhao Yuanshen in the cave was closing his eyes and meditating, and the sound transmission stone placed on the table flickered a few times, and Han Leng's voice came out.

"Elder Zhao, it's Han Leng down there. I am now in front of the stone gate of the ninth layer of the Refining Heart Cave, and I want to ask Elder Zhao to order the stone gate of the ninth layer to be opened, everything that happened after I entered the stone gate has nothing to do with anyone. ”

After Zhao Yuanshen heard this, the whole person retreated from the state of meditation, his brows furrowed slightly, because of his age, the time it takes for him to enter the state of meditation now is getting longer and longer, and he finally entered the state, and was dragged back to reality by Han Leng's voice, which was really a little angry.

But he, Han Leng, is the cheap apprentice of Daotong Ancestor, and he is the same as himself according to his seniority, and he can't be beaten and scolded, which is really even more annoying.

Han Leng directly called him Elder Zhao, probably because he didn't want to expose his identity, and when Daoxuan Ancestor informed him, he also said that he would help Han Leng keep it secret, but he turned his head and told Liu Erfeng in Luoxia Peak, but Liu Erfeng has always been guarding Luoxia Peak, so there is no need to worry that other people will know.

"What kind of character is this Senior Brother Han, why can't he think about breaking into the ninth layer, the eighth layer is enough for him to drink a pot. Zhao Yuanshen stroked his beard and said, he couldn't see through Han Leng's mind with his own experience.

Although Han Leng's words were very atmospheric, but after all, he was a disciple of Daotong Ancestor, if something really went wrong, that Daotong Ancestor would not be angry, and Daotong Ancestor would not be able to control so much at that time.

"Break into the ninth layer, does your master agree?"

In the Heart Refining Cave, Zhao Yuanshen's voice floated out of the sound transmission stone.

Zhao Yuanshen was not qualified to contact Daotong Ancestors directly, unless these Ancestors were interested in looking for him, he would not be able to see anyone at all.

After listening to this, Han Leng said in his heart: My master has been killed a long time ago, so what else do you ask. But it was a lie.

"The family master gave me a life-saving jade ring, which can help me resist the damage of the formation. ”

When Zhao Yuanshen heard the life-saving jade ring, a look of envy vaguely appeared on his face, it was a jade ring refined by a Yuan Infant Cultivator, and he dreamed of getting one as his talisman.

"Since you have this jade ring, you can naturally go to the ninth layer and open the stone door for him. Zhao Yuanshen's voice came out.

There was a faint hint of jealousy in the guard's eyes, why did he have such a good master, and with the jade ring, he could even break into the ninth-layer heart refining cave, and I was the only one who guarded the heart refining cave here.

In fact, where is there any life-saving jade ring, Zhou Tianji's life-saving things are estimated to have been used up when he fled, leaving Han Leng with some shoddy leftovers.

The guard rummaged through his body for a long time to find a key, he walked to the stone door, found the huge copper lock with the chain, inserted the key into it, and opened it with a slight rotation.

Then he pulled the chain out and pushed open the stone door.

As the stone door opened, a chaotic stream of music floated out of it, and the guard's face changed, and he hurriedly cast a mana shield to protect his body, and then hurried to the eighth floor with a frightened face.

"This is the Kira Demon Sound that can summon the demons of the heart, be careful yourself. The guard reminded.

Han Leng listened carefully without changing his face, and could only distinguish the sound of the dong flute and the yaoqin in this music, as for the sounds of other musical instruments, he didn't distinguish them, but he felt that the combination of this music was very ugly.

The stone door opened, Han Leng walked in, and after turning left, there was the entrance to the Heart Refining Cave.

The cave was filled with all sorts of musical instruments, but they were different from what he had usually seen, each one of them seemed to come from another world, and the sound from it was like a ghost whisper, and it made people's scalp tingle.

Han Leng stepped into the Heart Refining Cave, and what he stepped on under his feet was a formation that could destroy the heart demon, but the formation at this time had not yet turned far.

The instruments on the roof of the cave and on the stone walls are still just random sounds, and only by touching these instruments with mana can they completely activate the Qira magic sound.

Han Leng stood in the center of the formation and took a deep breath, he now seemed to feel that his heartbeat was accelerating, and the fear of the unknown always made people uneasy.

After a long time, Han Leng gradually calmed down, he stretched out his arms, the mana in the dantian was directly released, and the exquisite clothes were blown by the mana.

At this moment, all the musical instruments hanging around made a sound, and in an instant, the entire cave was filled with music, and the strongest Kira magic sound also appeared.

The face of the guard on the eighth floor changed again, and he hurriedly used mana to seal the stone door on the eighth floor, so that the sound inside stopped spreading, if the magic sound of this strength was transmitted to other caves, it was estimated that the people who were in the cave could get rid of the demons directly into the demons.

This music is endless, ethereal, as if it comes from the distant sky, as if it comes from the bottomless hell, in this music, it is impossible to distinguish who I am, and in this music it is impossible to distinguish who I am.

Han Leng's eyes suddenly lost their brilliance, and the whole person seemed to have lost his soul in an instant, his eyes were empty and godless, and his hands hung down.

The Qiluo Demon Sound, which can bewitch people's hearts, is like a pair of huge palms sticking out of hell, which is peeling off Han Leng's heart demon bit by bit.

However, let the demon sound fill his ears, except for the temporary loss of consciousness, Han Leng did not have the so-called inner demon summoned, but the green dragon spirit body on his body gradually appeared because it was not restrained.

The green dragon was not a tattoo, but a phantom, which was surrounding Han Leng's body, and those Qiluo magic sounds were still drilling into Han Leng's ears, but they didn't bring much effect.

After a long time, Han Leng slowly regained consciousness, he looked at his body nervously, and found that he was still himself, and he had not fallen into the demon path, and he couldn't help but smile on his face.

"It's said that this ninth layer is the most difficult, but why didn't I feel anything? Han Leng said in disappointment, and then walked out of the Heart Refining Cave.

The guard looked at Han Leng with wide eyes, the expression on his face was full of shock, as if he couldn't believe that Han Leng had walked out alive, but he was just stunned for a while, and he didn't feel shocked when he thought of what kind of life-saving jade ring.

After Han Leng walked out of the ninth floor, the guards hurried over to seal the stone gate again.