"What a terrible formation."

Yun Yi was secretly shocked. In just a few minutes, he actually killed the demon emperor's clone so that he didn't even have any hair left. No wonder he was so surprised.

"What's this? The Nine Killing Domain, with the formation as the domain, killing all things. The larger the coverage, the stronger the power of the formation. If you can set up a state, you can turn the land of a state into purgatory in an instant, and there is no grass left, so wherever you go!"

Hei Feng curled his lips and said, although the Nine Killing Realm is an upgraded version of the Nine Killing Formation, it is an all-round improvement and has already escaped the limitations of the Nine Killing Formation.

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

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

"This is not a place for long-term stay, so let's leave."

Yun Yi naturally knew this, but the result still shocked him. There was such a big noise here just now, and a big monster would soon arrive.

They must leave here as soon as possible.

"Don't worry, do you think I'm going to deal with him temporarily?"

Hei Feng said, turning into a black shadow and rushing into the Nine Killing Realm, then forming a handprint, and a stream of power gathered from all directions, gathering a gray energy in front of him.

This ball of energy was like a conscious mind, and it was struggling violently in Black Wind's hands, trying to escape from this place.

"I still want to run."

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

"This is……"

Yun Yi was stunned, but immediately understood that this was the power of the soul. If nothing unexpected happened, it was a wisp of the Demon King's soul trapped in it by the Nine Killing Realm. Finally, Hei Feng used the formation to plunder it.

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

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

The devil emperor's unwilling roar came from the energy, and the boundless anger could be clearly felt through the Red Lotus Karma Fire.

Yun Yi and Hei Feng didn't care and continued to control the Red Lotus Karma Fire to calcin the energy, and soon, they calcined the soul marks in it.

"Little Yunzi, swallowing it will be good for you."

Black Wind handed over the calcined soul power to Yun Yi. This thing is a great tonic for Yun Yi, and can greatly enhance Yun Yi's soul power.

As for himself, he does not need the improvement of such things at all.

"Then I'm not polite."

Yun Yi naturally knew the benefits of this thing, and after taking over the power of his 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 and turned into pure soul power, which can be used by anyone who gets it.

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

Although this soul power is just a wisp of soul distributed by the Demon King, it is very huge for Yun Yi, and instantly pushes his soul realm to the Nine-level Spirit King realm.

Moreover, this improvement did not end because of this, and it continued. After another ten minutes, this power was consumed. Yun Yi's soul was frozen at the peak of the Nine-Level Spirit King, only one step away from the Spirit Emperor.

The fifth level of the Spirit King realm has the soul power of the peak realm of the Nine Level of the Spirit King realm, and it feels terrible to think about it.

"How is it, how much has it been improved?"

Hei Feng was also a little curious. The reason why he proposed to kill the demon king's clone before was the idea.

Yun Yi mastered the Hunyuan Pill Sutra. The higher the soul power, the stronger the elixirs that can be refined, and it will be safer after arriving in Shenzhou.

The identity of an alchemist is very noble no matter where he is, especially an alchemist like Yun Yi who can refine elixirs beyond the level.

"The peak realm of the Nine-level Spirit King is only a thread away from the Spirit Emperor."

Yun Yi was also very excited. After the soul power broke through, the stronger his perception power became, not only could he refine more pills, but he would be even stronger.

With his current strength, there is no problem in refining emperor-level pills.

"Good guy, it seems I didn't lose this time."

Hei Feng was also shocked. You must know that Yun Yi's cultivation level at this time was only a fifth level of spirit king, and his soul power had reached the peak of the Ninth Level Spirit Emperor. If this was transmitted, it would probably shock the big teeth of countless alchemists.

After all, for alchemists, the power of the soul is crucial and the improvement is slow. Even an alchemist with a specialized method of soul cultivation cannot have the four levels of soul level higher than the level of cultivation.

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

Yun Yi smiled and said nothing thanks because they didn't need these politeness. Hei Feng would give everything for himself, and he could do the same.

Now that my soul power has been broken through, it is time to help Black Wind refine the emperor-level pill Qianyuan Blood Transformation Pill, which is crucial to Black Wind.

"Okay, okay, refine it quickly. With the help of Qianyuan Blood Transformation Pill, I am very likely to go further and be promoted to the realm of the Sixth Level Demon King."

Hei Feng immediately danced, he didn't want to be pulled too far by Yun Yi.

"It's not possible now. We only have one drop of the real fairy fox saliva, so we have to find a secluded place."

This is the first time that Yun Yi has refined the emperor-level pill, which is too different from the pill he has refined before. Moreover, the materials are limited and he cannot make any mistakes.

“Okay.”

Heifeng nodded and said, he didn't want to waste the fairy fox saliva that he had finally obtained. After all, he only had one drop in his hand, and the other drop was ripened with flesh and blood. The effect of the medicine was too different from the real fairy fox saliva.

Heifeng was not willing to take a look at such defective products, let alone use them.

"Walk!"

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

...

Not long after they walked, a demon tiger came in the air. It was the original body of the demon king's clone who was killed by Yun Yi.

After the Demon King arrived, he looked at the empty Nine Killing Realm, and balls of demonic flames spread around like waves, instantly burning tens of thousands of miles apart.

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 will kill you."

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

All the monsters in this range crawled on the ground, trembling, and didn't even have the courage to raise their heads.
Chapter completed!