It's a low hill.

The hill is called the Devil's Cave Mountain.

Plain.

As soon as he stepped into this mountain, Xu Qing immediately felt a different atmosphere.

According to what the third senior brother said, this is the so-called demonic qi.

In fact, the entire Demon Cave Mountain Range area is full of this kind of demonic energy with a different nature from the aura.

It's just that the rest of the place is very weak, and it has little influence on the monks.

Only the demonic aura on this demon cave mountain is particularly strong.

And the demonic energy here.

Only the special mental method cultivated by the disciples of the Nine Peaks can resist it, and even convert it into spiritual power to increase cultivation.

It is a terrible thing for demonic energy to enter the body.

Once this kind of spiritual power of different nature is mixed into the dantian.

It will cause varying degrees of damage to the monks.

At the least, it will make people's cultivation poor and their meridians will be damaged.

The worst will cause the whole person to go crazy and die instantly.

When I think of this.

Xu Qing couldn't help but shrink his shoulders, and it seemed that even the temperature of the air had dropped a few points.

Turn over your hand and take out a "Demon Avoiding Pill" and swallow it.

Then he strode towards the mountain.

He was still a little uneasy about the exercises created by the unreliable master.

But.

Even if you take the Demon Evasion Pill.

After advancing about three miles, that is, near the mountainside.

Xu Qing still felt a trace of discomfort.

The demonic aura here is already so strong that it is visible to the naked eye.

A trace of black gas appeared all around, like a cloud.

Even the plants here seem to have become strange and gloomy under the influence of demonic energy.

Even quite a few plants have undergone more or less mutations.

Xu Qing had to run the exercises and began to resist the erosion of demonic qi on him.

With the operation of the "Seven Laws of the Heart"——

"Huh?" Xu Qing was slightly surprised, "It's really useful." ”

He only felt that the slightest tingling sensation in the original meridians gradually dissipated.

This was followed by a slight increase in the aura in the body.

This growth has been slow, though.

But it's happening all the time.

Xu Qing finally admired the old man's amazing talent.

Being able to create such an exercise can even transform the demonic energy that is like poison to others into aura.

It's simply incredible.

It seems that the master used to be a great character.

I just don't know what kind of injury I suffered to become what I am now.

With Xu Qing step by step mountaineering.

Soon, he was at the top of the mountain.

It's just that the demonic aura here has turned into a thick black mist.

The entire mountain top was shrouded in black mist.

"This place...... Is it human? ”

He was not a little shocked.

The second senior brother stays in this kind of place all year round?

He looked around cautiously and pondered.

Didn't rush into it.

According to the third senior brother.

The entrance to the cave is actually a cave carved out of the mountain wall at the top of the mountain.

And he didn't need to go into the hole.

Just put the mustard seed bag containing the items needed by the second senior brother at the entrance of the hole.

The only thing that needs to be careful is the demonic energy entering the body.

"The Seven Methods of Heart Xuan" can resist and transform demonic energy.

But this is also limited by strength.

In other words, there is a limit to the exercises.

This limit has to do with strength.

According to the third senior brother's speculation, the demonic qi on the Demon Cave Mountain is constantly changing like a tide.

Sometimes full-bodied, sometimes sparse.

If it's at its fullest.

Even the third senior brother himself couldn't enter it.

Therefore, what Xu Qing needs is to grasp this degree.

Enter at the right time.

If you find something wrong, quit immediately.

"At this time, the demonic qi is still quite sparse, far from reaching my limit." Xu Qing judged a little, and hurriedly walked into it.

Because he wasn't sure how long the demonic energy had remained in this sparse state.

If you're unlucky, maybe the next moment it will be full-bodied.

So he had to hurry.

Otherwise, once the demonic qi became stronger, he would have to wait here for three to seven days before he had a chance to enter.

Luckily, it is.

It wasn't until Xu Qing came to the top of the mountain that he saw the cave covered with a large number of runes, and the demonic qi did not change much.

He hurriedly walked to the entrance of the cave, took out a tightly protected mustard seed bag from his bosom and placed it at the entrance of the cave.

Then he clasped his fists into the cave and said loudly: "Xu Qing, a disciple of Jiufeng, has been specially ordered by the master to bring supplies, second senior brother, I have put things at the entrance of the cave!" ”

After finishing speaking, Xu Qing hugged his fists and waited.

He didn't hear a response from the cave, so he bowed, turned around and strode down the mountain.

This place should not be stayed for long.

The third senior brother said that the second senior brother may sometimes go deep into the demon cave.

So if you don't get a response from him, just leave your things at the door and leave.

But before he could take two steps, there was a strange laugh around him.

Xu Qing suddenly paused, turned his hand and clasped "Qingfeng", and the whole person looked around vigilantly.

It's just that the laughter is getting louder and louder, coming from all directions, and then getting weirder and weirder.

Finally, they joined together and turned into a series of strange whistling sounds.

Xu Qing was stunned for a moment, and then his face changed and he exclaimed: "Not good!" ”

Because he remembered.

This so-called "magic sound into a roar" is exactly the characteristic of the change of the demonic qi frenzy that the third senior brother said!

"!"

Xu Qing scolded in a low voice, the demonic qi was about to become stronger!

He hurriedly took out a "Demon Avoiding Pill" and swallowed it in his mouth.

Just when he was about to fly down the mountain with all his might, he remembered the instructions of the third senior brother.

In case of such a situation, the senior brother said that he must return to the entrance of the cave.

But shouldn't the entrance of the cave be the source of demonic energy?

After a slight hesitation, Xu Qing then took a few steps back and returned directly to the entrance of the cave.

Immediately sit down cross-legged and begin to run the exercises with all your might.

He chose to believe in the third senior brother!

Almost the next moment.

The whole sky was dark.

I saw that from the entrance of the demon cave in front of him, a large area of strong and cold demonic qi erupted.

The demonic aura was like a stream of water.

Xu Qing could even feel the impact of his pounce on his body.

He hurriedly stabilized his body and operated the Seven Methods of Heart Xuan.

But even so, there were still wisps of demonic energy running down his skin and into his meridians.

Began to invade towards the dantian.

Xu Qing was slightly flustered when he saw this, but he quickly calmed down.

He hurriedly took out three pale cyan "magic rejection talismans" and pasted them on his heart, dantian, and heavenly spirits.

At the same time, he swallowed a few "Demon Evasion Pills".

But even so.

He still couldn't stop the slow invasion of the strong demonic energy.

It's over.

Just when the thought crossed his mind.

Bursts of murmuring and murmuring rang out of his ears.

Xu Qing's eyes suddenly became in a trance.

This is a manifestation of demonic energy entering the brain.

"Whoosh!!"

And yet at this moment.

A streamer of light suddenly shot out from the depths of the cave and slammed into Xu Qing's back.

Xu Qing felt a pain in his back and woke up from his trance suddenly.

I heard a hoarse voice sound from the depths of the cave: "Put it in the dantian and run the exercises with all your might!" ”

Xu Qing came back to his senses in an instant and glanced towards the depths of the pitch-black cave.

Then he picked up a pure black "stone" from behind him, which was completely different from the gray sand stone at the entrance of the cave.

Put it in the dantian, and then run the Seven Methods of Heart Xuan with all your might.

The next moment.

Something magical happened.

I saw that the black "ordinary" stone actually began to emit bursts of faint black light with the operation of Xu Qing's mental method.

Immediately afterward, the infinite demonic qi melted almost instantly, as if it had met the ice and snow of a soldering iron.

Then, bursts of cool spiritual power poured into Xu Qing's body along the stone.

Everywhere he passed, the demonic energy melted and the aura surged.

And Xu Qing's cultivation, which had just been firmly established in the early stage of foundation building, actually began to grow rapidly.

Xu Qing was overjoyed in his heart, sank into his heart, and tried his best to refine the demonic qi.

Until two days later.

It was only when he suddenly woke up that he realized.

The demonic energy around him has long since dissipated.

On the top of the entire Demon Cave Mountain, I actually saw a clear blue sky.

Xu Qing thought of something at this time, and hurriedly got up and said loudly to the cave: "Thank you Second Senior Brother for coming to the rescue!" ”