The spiritual energy was restored, and he became a mortal immortal in two days.

"What?!"

Black Wind Ancestor was horrified, "You actually cultivated the Primordial Chaos Seal to the 'One Thought Differentiation' realm?! This is impossible! Back then, you could only condense one Primordial Chaos Seal!"

"Five thousand years."

Chen Xuan said calmly, "Do you think I'd stand still?"

He then formed a hand seal.

This is the second transformation of the Hunyuan Seal.

"Primordial Seal - Demon Suppression".

Thousands of orbs of light reassembled and condensed into a colossal seal ten thousand feet tall!

At the bottom of the giant seal, an extremely complex demon-suppressing array diagram emerged. The array diagram rotated, emitting a suppressive power against all demonic techniques!

As the Black Wind Ancestor sensed the suppressing force, his demonic energy began to run rampant out of control!

He desperately tried to unleash the Black Wind Demon Art to resist, but the Black Wind was suppressed and purified the moment it touched the giant seal, and couldn't even get close!

"No!!!"

Black Wind Ancestor roared, burning his demonic blood, and forcibly raised his cultivation to the mid-stage of the Nascent Soul realm!

"Black Wind Demon Art - Transformation into Wind!"

He exploded, turning into countless wisps of black wind that scattered in all directions!

This is his strongest life-saving ability: transforming into a black wind that is omnipresent. As long as even a wisp of black wind escapes, he can reassemble his true form!

"Transformed into wind?"

Chen Xuan shook his head. "You used the same trick five thousand years ago."

He changed his hand gestures again.

"Primordial Seal - Sealing Heaven".

The colossal seal suddenly expanded, transforming into a chaotic barrier that covered an area of ​​hundreds of miles in radius!

Within the barrier, all demonic energy had nowhere to hide! The countless strands of black wind crashed against the barrier wall, like moths drawn to a flame, and evaporated with a hiss!

"ah!!!"

The Black Wind Ancestor's screams emanated from every wisp of black wind!

The barrier continuously purified and annihilated countless strands of black wind, leaving less than one in ten remaining!

In the end, only the last wisp of black wind remained, huddled in a corner of the barrier, trembling.

Chen Xuan raised his hand and grabbed the wisp of black wind into his palm.

The black wind reformed in his palm into a miniature figure of the Black Wind Ancestor, only three inches in size, trembling all over, without a trace of its previous arrogance.

"Spare me...spare my life..."

Black Wind Ancestor stammered, "Primordial Immortal... no, Primordial Supreme Immortal! This humble demon knows his mistake! I beg the Supreme Immortal to give this humble demon another chance!"

"This humble demon is willing to submit to the immortal for eternity and serve as his servant!"

Chen Xuan looked at him, his eyes calm:

"Five thousand years ago, I gave you a chance."

That's all for today.

Bring your five fingers together.

"Pfft."

The last remnant soul of the Black Wind Ancestor was completely obliterated by the power of Hunyuan.

The ancient demon lord, Black Wind Ancestor, has perished.

Chen Xuan released his hand, and the wisp of black wind turned into dust in the wind, dissipating into the world.

Sha Wanli knelt behind him, tears streaming down his face: "Ancestor... Ancestor rid the Western Desert of a great scourge! The billions of lives in the Western Desert are grateful for Ancestor's kindness!"

Chen Xuan didn't say much, only saying, "Lead the way to the Blood Fiend Cave."

.......

Blood Fiend Cave, half a day later.

The Blood Fiend Cave is located deep within a crimson mountain range. The entire mountain range is shrouded in a dense aura of blood and fiends, and the rocks are dark red and barren.

At the entrance of the cave, dozens of disciples of the Hunyuan Sect were desperately reinforcing the seal. Several cracks had appeared in the seal, and bloodthirsty energy was constantly seeping out from it.

Each strand of blood essence contains terrifying corrosive power; it melts bones and flesh upon contact.

"I can't hold on any longer!"

A Golden Core elder collapsed, coughing up blood. "There are too many cracks in the seal, and our spirit stone reserves are exhausted!"

At that very moment—

Chen Xuan arrived, stepping through the air.

He glanced at the seal's condition and raised his hand to form a hand seal.

"Primordial Seal - Solid Seal"

The primordial light sphere flew out and merged into the seal.

The cracks healed at a speed visible to the naked eye, the bloodthirsty energy was forcibly forced back into the cave, and the sealing array was relit, shining brightly with golden light!

Three breaths later, the seal was restored to its original state, no, it was even stronger than it was five thousand years ago!

From within the cave came a low, venomous roar:

"Hun Yuan... I sensed your presence... You are indeed still alive..."

That was the voice of the Blood Fiend Ancestor, carrying five thousand years of resentment and unwillingness.

Chen Xuan stood at the cave entrance and said calmly, "Blood Fiend, you want to come out too?"

After a moment of silence inside the cave, the Blood Fiend Ancestor's voice became even more venomous: "I am not as foolish as Black Wind, who knowingly forced his way in while you were outside."

"I can wait... until you leave the Western Desert, until the spiritual energy fully recovers, until the seal loosens again... then I will emerge and wash the mortal realm in blood!"

Chen Xuan smiled.

His laughter was cold.

"You think... I'd give you that chance?"

He raised his hand and formed a hand seal different from the previous ones.

This hand seal is more ancient, more complex, and more... terrifying.

The moment it was printed, the world changed color!

The spiritual energy within a radius of a thousand miles was instantly drained and gathered into Chen Xuan's palm!

In the palm of his hand, a small, ancient seal appeared.

The print depicts the primordial chaos, the undifferentiated world before heaven and earth were separated, and the Daoist principle of the unity of all things!

"This is......."

Sha Wanli was utterly shocked. "This is the ultimate secret of the Primordial Chaos Seal Technique, the Primordial Chaos Heaven-Opening Seal?!"

Chen Xuan did not answer.

He simply pressed the small seal gently onto the seal of the Blood Fiend Cave.

"Primordial Heaven-Opening Seal - Demon Extermination"

"Buzz!!!"

The small seal merged into the seal, and the seal suddenly burst forth with a blinding white light!

The white light pierced through the mountain, through the blood-red aura, through all obstacles, and went straight into the deepest part of the Blood Fiend Cave!

Inside the cave, the Blood Fiend Ancestor's most agonizing screams echoed:

"No!!! This isn't a seal! This is... this is annihilation!!!"

"Hun Yuan! You actually refined the power of annihilation into the seal! From the very beginning... you never intended to let me go!!!"

"ah!!!"

The screams lasted for a full ten breaths.

Then, silence returned.

Inside the Blood Fiend Cave, the aura of the Blood Fiend Ancestor... completely vanished.

Their souls will be scattered and they will never be reincarnated.

Chen Xuan withdrew his hand and turned around.

Sha Wanli knelt on the ground, trembling all over: "Ancestor...you...you killed Blood Fiend Ancestor...directly?"

"Sealing is too troublesome," Chen Xuan said calmly. "Kill them cleanly."

He looked at Sha Wanli: "Where is the seal on the Ten Thousand Poison Cave? Is it still there?"

Sha Wanli was taken aback, then a look of shame appeared on his face: "The seal of the Ten Thousand Poison Cave... collapsed three thousand years ago."

"The Old Ancestor of Ten Thousand Poisons broke free of his seal and was besieged and killed by the Hunyuan Sect and various sects of the Western Desert. Although he was severely injured, he was able to escape into the 'Sea of ​​Death' in the deepest part of the Western Desert."

"For the next three thousand years, the Ancestor of Ten Thousand Poisons never appeared in the world again, and it is unknown whether he is dead or alive."

Chen Xuan looked towards the depths of the Western Desert, at that forbidden land known as the "Sea of ​​Death," a cold glint in his eyes:

"Still alive."

"I can sense... his presence."

He paused, then looked at Sha Wanli: "Let's go back to Qingcheng Mountain first. There's no rush regarding the matter of the Ten Thousand Poison Ancestor."

"He has been hiding for three thousand years; he won't come out easily."

Sha Wanli kowtowed.