Before entering the underground blood pool, Chu Yun subconsciously thought that this place was a "pool".

But at this time, he appeared by the light of the luminous stone...... In this space buried deep underground, where is the "pool of blood"? It is simply a sea of blood!

Although the glow of the luminous stone was faint, it was enough to illuminate a large area, and Chu Yun released more than a dozen luminous stones.

However, the glow of the luminous stone could not illuminate the entire space at all.

Chu Yun felt that he had been thrown into a sea, and this sea was full of blood.

No wonder the smell of blood is so strong...... Chu Yun's heart trembled a little.

He couldn't imagine how many people's bones were buried in this underground sea of blood. How did the Ghost Envoy Hall build this place?

Chu Yun didn't immediately try to cultivate, he carefully observed and felt the situation here.

There was nothing but a sea of blood as far as the eye could see. The sea of blood is not very deep, less than a person deep, Chu Yun's divine sense seeps into the blood water, and it can be seen that the bottom of the water is a very solid ground, on which are depicted with all kinds of complex lines.

Pure blood water would definitely have no effect on cultivation.

And the texture at the bottom of the pool is definitely the key, which can make the blood water promote cultivation.

When I looked up, it was the top of the cave, a piece of black and autumn, and I couldn't see the edge, and as for the passage at the beginning, it was long gone.

"Buried in such a deep place, if Wei Chi forgets not to bring me, who can find it?" Chu Yun muttered to himself.

Then, he was angry and cautiously tried to operate the soul sacrifice technique.

Sneer......

Suddenly, there was an ugly and strange sound in the blood water, and huge bubbles gushed out.

Chu Yun's heart was cold, and it was only at this time that he understood why this "underground blood pool" could promote cultivation!

Because, in this endless sea of blood, there is not only a lot of blood, but also countless wailing souls.

As soon as he started to run the exercises, Chu Yun felt that his body seemed to be calling out of hunger and thirst, and a trace of crumb-like soul power in the blood water quickly poured into his body, circulating and changing in the meridians.

Chu Yun, who had practiced the soul sacrifice technique, was particularly sensitive to the perception of "soul".

It was precisely because of this that he could realize that there were not many souls in the sea of blood.

And these souls are not complete souls.

If it is a complete soul, it will be used to cultivate the soul sacrifice technique, and it will also require a very complicated refining and absorption process.

Just like Zhang Zishi, who was killed by Chu Yun, there are a lot of "half-refined souls" left in his body.

And in this underground blood pool, all the souls have been half refined. To put it simply, these souls have long since been erased from any consciousness, and it seems to have been crushed.

After the crushed soul, it is only one step away from being completely refined and transformed into its own power by cultivation.

Therefore, the degree of cultivation in this place is extremely fast.

If you cultivate the Soul Sacrifice Technique under normal circumstances, you still need to pull the complete human soul out of the body, then strip off the consciousness, and then refine and absorb it......

But now, Chu Yun directly omitted many complicated steps in front of him, and only needed to absorb it.

In this way, it will not be affected by the lack of its own carrying capacity.

............

After Chu Yun learned about the effect of the "Underground Blood Pool", he didn't feel happy, but felt creepy.

Countless people have died, countless souls have lost the opportunity to be reincarnated, and in the end, they are just to become the cultivators of the Demon Sect!

No wonder, the underground blood pool is not just a matter of getting in.

Because, no matter how many souls there are, they are not endless, and once they are cultivated by a person, their souls will decrease......

If the soul is reduced, it must be replenished again, and then it can be supplied to the next person to cultivate.

There are countless souls in the blood pool, so it will definitely take a lot of time to replenish them, so the number of places to enter the blood pool is particularly precious.

Chu Yun was enjoying this precious place at this time, and his heart was infinitely stunned for a while.

However, his body instinct prompted him to want to refine and absorb the soul in the blood pool, this kind of **, as long as he mastered the soul sacrifice technique, he could not resist.

It's just that Chu Yun can't be ruthless when he thinks of the countless unjust souls in the blood pool.

"These people are already dead and have long lost the opportunity to reincarnate, and even if I don't use this power, I will eventually be used by other demon cult personnel. ”

"Rather than this, it is better to be in my hands......"

Chu Yun thought about it for a while, and finally felt relieved.

It was impossible for him to kill people for no reason for his own cultivation, but the soul fragments in this underground blood pool had already been fused with blood, and it was impossible for Chu Yun to restore these damaged souls.

And these souls themselves have become pure power bodies......

Even though they were human beings, that is in the past...... These soul fragments will eventually be used to improve the cultivation of Demon Sect masters.

In this case, it is better to improve my own cultivation - after Chu Yun made up his mind, his mentality became much more decisive.

He stabilized his mind and operated the soul sacrifice technique step by step, and the four times the meridians made him cultivate several times that of ordinary people.

In this process, Chu Yun's cultivation is also improving.

But he knew that the cultivation and ability obtained by relying on the soul sacrifice technique were demonic aliens after all.

Ever since Chu Yun cultivated the Soul Sacrifice Technique, he felt that the essence of the spiritual power in his body had changed, and the spells he cast were also full of evil and gloomy feelings.

Even his own personality is also changing subtly.

However, the arrow has gone off the string, and this doppelganger has no turning back......

After stepping into the Cave Void Realm, Chu Yun truly understood how difficult it was to improve his cultivation.

At this time, he was in an underground blood pool, and this feeling was even more obvious.

Obviously, he had already enjoyed the strongest cultivation resources in this Ghost Envoy Palace, and he himself had four times as many meridians, but the degree of cultivation accumulation and growth was pitifully slow compared to before.

From foundation building to distraction realm, every time you break through a stage, the degree of cultivation will slow down.

This slowdown is gradual, but from the Distraction Realm to the Cave Void Realm, it is suddenly and dramatically slowed down!

The cultivation before the cave is like crossing a river by feeling a stone;

And when I arrived at the Cave Void Realm, it was like struggling in a swamp......

"No wonder, there are not very few immortal cultivators in the Cave Void Realm of the Immortal Cultivation Realm, but the masters of the Tribulation Period are very rare. I didn't expect it to be so difficult to ...... just from the early stage to the middle stage of the cave void," Chu Yun sighed silently in his heart.

The souls of several masters that he devoured in the late stage of his distraction directly broke through to the Cave Void Realm.

But now, even if there were countless souls around him to support his cultivation, Chu Yun didn't have the confidence to break through a lot......