Purple Heaven Divine Thunder Slays the Enemy

As the horned man finished speaking, the densely packed figures behind him answered in unison.

The next instant, hundreds of millions of streaks of light poured down from the void like rain, striking the light barrier raised by the innate formation.

Although most of the attacks barely affected the innate formation, as their numbers accumulated, dense ripples still spread across its barrier. Like the surface of a lake beneath a torrential downpour, countless waves intertwined, overlapped, and resonated.

The pressure on the Three Xiao abruptly increased.

Before long, the horned man and the others found a relatively weak point in the innate formation.

"Right there!"

With a furious roar, the horned man swung his massive hammer down first.

The man in green robes and the gaunt old man followed close behind. The black threads of the Mysterious Yin Banner and the bone blade's eerie blue glint struck the same point at once.

The millions of sea clan cultivators also received the order and concentrated their attacks.

Boom! Boom! Boom!

The attacks of the three demons and the millions of sea clan cultivators converged into a torrent of destruction, striking the formation's weak point with pinpoint precision.

The barrier there shook violently. The innate runes were completely worn away and could no longer recover. Cracks spread madly like a spiderweb, while golden fragments began to rain down.

The Three Xiao's faces turned pale. Their mana was nearly exhausted. As they watched the innate formation break apart, the same thought flashed through all their minds.

It's over.

"Don't be afraid, sisters. I'm still here."

As the words fell, Lei Xiao appeared in front of the Three Xiao. The lightning mark between his brows had completely turned purple, and purple lightning flowed even within his eyes.

The Three Xiao looked at the figure shielding them, and a flicker of emotion crossed their eyes. Yet not a shred of hope rose in their hearts.

After all, Lei Xiao was only at the early stage of the Profound Immortal Realm. He could not change anything.

"Hahaha, it's finally broken! It took me so long. Next—"

The horned man laughed triumphantly, but abruptly stopped halfway through his sentence.

At some unknown moment, a vast heavenly might had filled heaven and earth. It was a tremor born from the instinct of life itself, as though the sky were collapsing and the thunder of all ages had awakened at once.

The horned man's laughter seemed to be strangled in his throat by an invisible hand. His face, once twisted with savage delight, froze before turning into utter terror.

Threads of purple lightning suddenly coiled around his body. The pitch-black hammer in his hand began to tremble uncontrollably. The vicious patterns on its surface, which had once drunk countless lives, cracked apart inch by inch beneath the purple lightning, letting out a strained wail.

"Th-this is Purple Heaven Divine Thunder?!"

The Mysterious Yin Banner in the green-robed man's hand burst into flames with a puff. The countless wandering souls did not even have time to scream before they were reduced to nothing beneath that invisible pressure.

The gaunt old man's legs gave out, and he actually dropped to his knees in midair. His two crystalline bone blades snapped with a crack, their eerie blue glow fading to ash in an instant.

It was not just them. The millions of sea clan cultivators behind them fell to their knees in swathes like stalks of wheat cut down by a scythe.

Lei Xiao was also enduring a terrifying backlash. His consciousness was on the verge of fading, yet he stubbornly refused to lose consciousness.

His gaze remained fixed on the three Golden Immortals of Great Unity outside the Three Immortal Isles. Strands of Purple Heaven Divine Thunder manifested out of thin air and coiled around the three of them.

"My cultivation is too weak, and the Purple Firmament Origin Divine Thunder within me is less than one percent fused. Killing all three at once is impossible. I can only kill one first."

Who should he kill?

Lei Xiao's gaze swept rapidly across the three.

The horned man had the highest cultivation, at the late stage of the Golden Immortal of Great Unity Realm. He was the leader of the three and the one who had initiated this attack on the island.

If he died, the other two would be leaderless and would most likely flee.

The green-robed man was at the middle stage of the Golden Immortal of Great Unity Realm. With his Mysterious Yin Banner destroyed, he was already half-crippled and posed the least threat.

The gaunt old man was also at the middle stage of the Golden Immortal of Great Unity Realm. His natal spiritual treasure, the bone blades, had shattered, and his cultivation was on the verge of falling. He was likewise nothing to fear.

Kill the horned man.

Lei Xiao made his decision.

The Purple Heaven Divine Thunder coiling around the other two vanished. At the same time, the Purple Heaven Divine Thunder around the horned man suddenly intensified. The faint purple arcs instantly solidified into a thunder snake as thick as an arm, which madly burrowed into his body.

"NO—!"

The horned man let out a shrill scream. His black-scaled armor was as fragile as thin paper before the purple lightning. The thunder snake pierced through the scales and plunged into his organs.

Blood gushed from his seven orifices. The scales on his chest exploded, revealing a charred, bloody hole. Fine purple arcs still danced along its edges, continuously scorching his flesh and primordial spirit.

"Big Brother!"

The green-robed man and the gaunt old man cried out in alarm at the same time, wanting to save him. Yet beneath the pressure of heavenly might, they could not move an inch.

Forcing their mana into motion would only bring an even fiercer backlash from the heavenly might.

"Don't... don't kill me..."

The horned man's voice had become hoarse and weak, his eyes filled with terror. "I'll withdraw my forces... I swear I'll never come to the Three Immortal Isles again... Whatever you want, I'll give it to you..."

Lei Xiao said nothing.

It was not that he did not want to speak. He simply could not.

His consciousness was already blurring, and the scene before his eyes had begun to split into overlapping fragments. For every breath that he maintained the manifestation of Purple Heaven Divine Thunder, his primordial spirit endured pain like being carved by a thousand blades.

He had no time to listen to the horned man beg, nor did he have the strength to bargain with him.

Kill.

Lei Xiao gritted his teeth and forced every last shred of his remaining will into that thunder snake.

Purple Heaven Divine Thunder erupted completely inside the horned man's body.

Boom—!

The horned man's body exploded from within. Fragments of black scales, shredded flesh, and charred bones scattered in every direction like fireworks.

His primordial spirit had just tried to flee when it was swept by the aftershock of purple lightning and instantly reduced to nothingness.

The horned man, a late-stage Golden Immortal of Great Unity, was destroyed in both body and soul.

Lei Xiao's vision went completely dark at that moment.

At that same instant, the heavenly might dispersed. The remaining gaunt old man and green-robed man did not hesitate in the slightest, directly burning their essence blood to perform escape arts.

The other sea clan cultivators also scattered and fled.

"Big Sister, just now, that was Lei Xiao..."

"Yes."

Before Qiong Xiao could finish, Yun Xiao flashed to Lei Xiao's side and caught his swaying body.

"Fourth Brother."

Only upon hearing Yun Xiao call him that did Lei Xiao finally relax completely.

"Big... Sister..."

He used the last of his strength to utter those two words. Then his body went limp, and he fell straight backward into Yun Xiao's embrace.

Yun Xiao's gaze fell upon Lei Xiao's face. His complexion was pale, and the lightning mark between his brows had completely dimmed, leaving behind only a faint gray imprint that seemed ready to vanish at any moment.

"Big Sister, Fourth Brother, he..."

Bi Xiao and Qiong Xiao rushed over as well. Bi Xiao's eyes had already reddened.

"Return to the island first."

Yun Xiao picked up Lei Xiao, transforming into a streak of light as she rushed toward the depths of the Three Immortal Isles. Qiong Xiao and Bi Xiao exchanged a glance and hurried after her.

After entering the Three Immortal Isles, Yun Xiao reactivated the innate formation. Before long, the entire Three Immortal Isles vanished from the East Sea.

"Big Sister, Fourth Brother's injuries..."

"Fourth Brother's body is unharmed; his mana is merely exhausted. But his primordial spirit suffered a terrible backlash and has fallen into slumber. He can no longer recover on his own." Yun Xiao's voice paused there.

"Then what do we do? Fourth Brother did this to save us..."

"I have a way to save Fourth Brother. Guard me while I do it," Yun Xiao said, cutting Bi Xiao off.

As soon as she spoke, a mass of white cloud mist enveloped Yun Xiao and Lei Xiao, isolating them from the outside world without waiting for Qiong Xiao and Bi Xiao to respond.

Before long, a mysterious aura began to spread from within the white cloud mist.

"Second Sister, it's the innate yin-yang creation qi. Big Sister, she... she..."