Chapter 734 Soul Breakthrough

"What a terrible formation."

Yun Yi was secretly stunned. In just a few minutes, he was able to kill the demon emperor's clone to the point where not even a hair was left. No wonder he was so surprised.

"What is this? The Nine Ultimate Killing Domain uses the formation as the domain to kill all things. The larger the coverage area, the stronger the power of the formation. If the formation can be deployed in a state, it can transform the land of a state into an instant. For the sake of purgatory, not a single blade of grass is left, so where is this?”

Heifeng curled his lips and said, although the Nine Ultimate Killing Domain is an upgraded version of the Nine Ultimate Killing Formation, it is an all-round improvement and has broken away from the limitations of the Nine Ultimate Killing Formation.

Its power is affected by the size of the formation, and it can cover an entire state, which is very terrifying.

However, this is just a theory. Looking at the entire Lingtian Continent, no one can build such a huge formation.

"This is not a place to stay for a long time, let's leave."

Yun Yi naturally knew this, but the result still shocked him. There had just been such a big commotion here, and a big demon would come soon.

They must get out of here as soon as possible.

"Don't worry, do you think I dealt with him temporarily?"

As Heifeng spoke, he transformed into a black shadow and rushed into the Nine Ultimate Killing Domain. Then he formed a hand seal, and a stream of power gathered from all directions, gathering into a ball of gray energy in front of him.

This mass of energy seemed to be conscious, and it was struggling violently in Heifeng's hands, as if it wanted to escape from this place.

"Still want to run."

Heifeng snorted coldly and said directly to Yun Yi: "Xiao Yunzi, release your red lotus karma fire to burn it."

"This is……"

Yun Yi was startled, but immediately understood that this was the power of the soul. If nothing else, it was a ray of soul of the Demon Emperor, which was trapped in the Nine Ultimate Killing Domain, and was finally used by Hei Feng with the help of the formation. Plundered.

His eyes immediately lit up, and he immediately came to Hei Feng's side, releasing the red lotus karma fire and wrapping the energy.

"Asshole, I won't let you go."

The demon king's unwilling roar came from the energy, and the boundless anger could be clearly felt through the red lotus karma fire.

Yun Yi and Heifeng didn't take it seriously, and continued to control the red lotus karma fire to calcine the energy, and soon the soul marks in it were burned away.

"Xiao Yunzi, swallow it, it will be good for you."

Heifeng gave the calcined soul power to Yun Yi. This thing was a great tonic for Yun Yi and could greatly enhance Yun Yi's soul power.

As for himself, he doesn't need this kind of improvement at all.

"Then I won't be polite."

Yun Yi naturally knew the benefits of this thing, so after receiving the power of the soul, he swallowed it directly.

This power has been calcined by the red lotus karma fire, and the impurities in it have been completely removed, turning it into pure soul power that anyone can use.

After Yun Yi took it, he was immediately absorbed by his soul.

Although this group of soul power was just a ray of soul separated from the Demon King, it was very huge for Yun Yi, and it instantly pushed his soul realm to the realm of the Ninth Level Spirit King.

Moreover, this kind of improvement did not end because of this. It continued. After another ten minutes, this power was completely consumed. Yun Yi's soul was fixed at the peak of the Ninth Level Spirit King, only a few meters away from the Spirit Emperor. a step far.

The fifth-level spiritual king has the soul power of the ninth-level spiritual king, which is terrifying just thinking about it.

"How is it? To what extent has it been improved?"

Heifeng was also a little curious. The reason why he proposed to kill the Demon King's clone before was because of this idea.

Yun Yi masters the Hunyuan Dan Sutra. The higher the power of the soul, the stronger the elixir that can be refined, and the safer it will be after arriving in China.

The status of an alchemist is very noble no matter where he is, especially an alchemist like Yun Yi who can transcend levels to refine elixirs.

"The peak state of the Ninth Level Spirit King is only a thin line away from the Spirit Emperor."

Yun Yi was also very excited. After the soul power breakthrough, his perception became stronger and stronger, and the pills he could refine were even more powerful.

With his current strength, there is no problem in refining the imperial elixir.

"Good guy, it looks like I'm not losing money this time."

Heifeng was also shocked. You must know that Yun Yi's cultivation at this time was only the fifth-level spiritual king, and his soul power had reached the peak of the ninth-level spiritual king. If this was spread, it would probably shock the teeth of countless alchemists. .

After all, for alchemists, the power of the soul is very important, and it improves slowly. Even for alchemists with specialized soul cultivation methods, it is impossible for the soul realm to be higher than the four realms of cultivation.

"Thanks to you, but in this way, I will be able to refine the Qianyuan Blood Transformation Pill."

Yun Yi smiled and did not say any words of thanks, because there was no need for such politeness between them. Heifeng would give everything for him, and he could do the same.

Now that his soul power has broken through, it's time to help Heifeng refine the imperial elixir Qianyuan Blood Pill, which is crucial to Heifeng.

"Okay, okay, hurry up and refine it. With the help of the Qianyuan Blood Pill, I will most likely go one step further and be promoted to the sixth level of the Demon King."

Heifeng immediately danced with joy. He didn't want to be pulled too far by Yun Yi.

"Not yet. We only have one drop of real fairy fox saliva, so we can't afford to lose it, so we have to find a secluded place."

This was Yun Yi's first time refining an imperial elixir. It was very different from the elixirs he had refined before. Moreover, the materials were limited and there was no room for any mistakes on his part.

"That's fine."

Heifeng nodded and said, he didn't want to waste the fairy fox saliva that he had obtained so easily. After all, he only had one drop in his hand, and the other drop was made using flesh and blood to ripen. The medicinal effect was very different from the real fairy fox saliva.

Heifeng didn't even want to take a second look at such a defective product, let alone use it.

"Walk!"

After Yun Yi finished speaking, he stepped away from Xiaoyaoyou and flew into the distance, disappearing in the blink of an eye.

…

They hadn't walked long before a demon tiger came through the air. It was the clone of the demon emperor who was killed by Yun Yi.

After the Demon King arrived, he looked at the empty Nine Ultimate Killing Domain. Balls of demonic flames spread around like waves, instantly burning tens of thousands of miles around.

Countless creatures were implicated in this disaster, and some were burned to ashes without even making a wailing sound.

"No matter who you are, even if you escape to the ends of the world, I, the fierce tiger, will kill you."

A roar that shook the world echoed between heaven and earth, and the terrifying power was released, covering tens of thousands of miles away.

All the monsters in this area were lying on the ground, trembling, and did not even have the courage to raise their heads.

The power of the emperor is so terrifying.