138: Ancient cave, dark and gloomy, with eerie shadows looming.

Supreme Elder Yuheng's escape light was unimaginably fast; almost in an instant, he carried Lin Xuan and the other three across the layers of Restrictions and mist behind the Qinglan Sect, arriving before a cliff face obscured by massive vines and ancient talismans.

The Spiritual Qi here was thin, and the air was permeated with a decaying, heavy, and unsettling aura.

On the cliff face, a deep, dim cave entrance large enough for only a few people to pass through flickered in and out of view, its edges shimmering with a faint yet resilient seven-colored flow of light—this was the Seal of the Ancient Demon Sealing Site.

At this moment, a hole large enough for one person to pass through, its edges constantly twisting and repairing themselves, had appeared on the light curtain of the Seal, with thick Devilish Qi from the Guixu Cult and a trace of blood remaining—this was the exact trace left by that heavily injured Guixu Cultist who had forcibly broken in!

"The Seal has been forcibly torn open. Although it is slowly repairing itself, the Devilish Qi has leaked out, and I fear mutations may occur within the ancient site."

Supreme Elder Yuheng's expression was grave. With a wave of his sleeve, a pure and gentle azure magic power was infused into the light curtain, temporarily stabilizing the hole. "Enter quickly! We must exterminate it before it causes greater destruction!"

There was no need for further words. Lin Xuan, Su Wanqing, Qu Feiyan, and Gongsun Yu immediately gathered their focus, following closely behind Supreme Elder Yuheng, and flashed into the deep cave entrance one by one.

Upon entering the ancient site, it was as if they had stepped into another world.

The light suddenly dimmed, with only some moss emitting pale green or ghostly blue micro-light on the rock walls providing a little illumination.

The passage was wide but twisted downwards, extending to an unknown depth underground.

The aura of decay and oppression in the air was even heavier, mixed with a faint, almost imperceptible whispering that seemed capable of eroding the minds of living beings.

The ground underfoot was covered in dust and felt soft; occasionally, one could see some scattered, withered bones that had long lost their spirituality, with strange shapes that did not resemble humans.

"Stay close to me. Do not touch anything suspicious. There are many Restrictions here, and even remnants of ancient demonic thoughts."

Supreme Elder Yuheng's voice was low. His body radiated a gentle, clear light that enveloped the five of them, effectively resisting the pervasive erosion of Devilish Qi and the mental whispers.

Lin Xuan's Divine Sense was highly concentrated, and the System was fully scanning the surrounding environment.

【Warning: High-intensity mental pollution field detected, Law fragments remain, spatial structure unstable. Multiple energy traps and dormant alert mechanisms discovered. Three thousand meters ahead, there is a strong life response and a high concentration of Devilish Qi gathering!】

"It's ahead. He has stopped, and seems to be... performing some kind of ritual?" Lin Xuan immediately warned based on the System's prompt.

Supreme Elder Yuheng nodded slightly, clearly having sensed it too, and his speed increased suddenly.

As they went deeper, broken murals and ancient inscriptions began to appear on both sides of the passage.

The content of the murals was mostly blurry, but one could vaguely see scenes of towering gods and demons fighting, heaven and earth collapsing, and the tragic sight of countless living beings wailing and being obliterated, filled with an aura of despair and destruction.

And those inscriptions radiated an ancient demonic might that made one's heart tremble.

Su Wanqing looked at the murals, a trace of discomfort flashing in her icy eyes. The Taiyin Bloodline within her seemed to have an instinctive repulsion and disgust for these images.

The frost silence sword also emitted a slight hum, its blade shimmering with moonlight, autonomously dispelling the approaching Devilish Qi.

Qu Feiyan and Gongsun Yu felt even more uncomfortable, as if countless cold tentacles were stroking their Souls.

Qu Feiyan's body shimmered with blood-colored light, resisting the erosion; Gongsun Yu tightly gripped her Purple Lightning Pendant, strands of lightning circling around to shatter the approaching sinister evil aura.

Suddenly!

"Chi chi chi—!"

From the darkness ahead, dozens of pitch-black, lightning-fast shadow arrows shot out!

These shadow arrows were not physical entities, but were condensed from pure Devilish Qi and evil thoughts, aiming directly for everyone's vital points!

"Hmph, mere parlor tricks." Supreme Elder Yuheng did not even turn his head; his clear light merely rippled slightly, and those shadow arrows, which could have severely injured a Golden Core Cultivator, melted away instantly like snow meeting the spring sun.

However, this was only the beginning.

"Roar!" "Awoo!"

From the depths of the passage came teeth-grinding roars and friction sounds.

Immediately after, countless demonic creatures with ghostly green Soul fire burning in their eye sockets and twisted forms surged out from the darkness like a tide!

Some looked like skeletons but were covered in viscous black matter; others were purely condensed shadows, emitting cold murderous intent; and still others seemed to be pieced together from the remains of various creatures, moving strangely and emitting a nauseating, filthy aura!

These were "Ancient Demon Puppets" formed from the long-term erosion of the Devilish Qi sealed here, or from the lingering resentment of the ancient demon wars!

Although their individual strength mostly ranged from Foundation Establishment to Golden Core, their numbers were extremely vast, and they did not fear death!

"Clear them out, do not get entangled!" Supreme Elder Yuheng said in a deep voice. He needed to conserve his strength to deal with the Guixu Cultist in the depths and any greater accidents that might occur.

"Leave it to us!" Su Wanqing shouted clearly. The frost silence sword unleashed a sky full of ice lotus sword rain, and wherever it passed, the demon puppets were all frozen and shattered!

Qu Feiyan's crimson serpent whip danced like a dragon, blood shadows flying. Every lash accurately struck and dissipated the core Soul fire of the demon puppets, while simultaneously creating numerous phantom images to attract a large amount of fire.

Gongsun Yu struck the Kui Ox Thunder Drum. The dull drum sounds triggered lightning, and streaks of lightning patterns spread out, having a significant restraining and purifying effect on this type of sinister demonic creature. Large swaths of demon puppets turned into fly ash in the lightning.

Lin Xuan, though not yet fully recovered from his injuries, found that the sin-severing sword had an extremely strong restraining effect on demonic creatures. His sword light was not flashy, but he could accurately strike the most vulnerable parts of the demon puppets every time, breaking the enemy with one sword strike, with extremely high efficiency.

The four of them joined forces, like a sharp dagger, and under the protection of Supreme Elder Yuheng's clear light, they forcibly carved a bloody path through the endless tide of demon puppets, constantly pushing forward!

About an incense stick of time later, the front suddenly opened up. At the end of the passage was a huge underground cavern!

In the center of the cavern was a huge altar wrapped and sealed by countless black chains.

Suspended above the altar was a mass of dark red flesh that constantly wriggled and emitted monstrous Devilish Qi. That mass of flesh seemed to possess life, still pulsating slightly, emitting a terrifying pressure that made Souls tremble—that was the sealed remains of the demon god!

And at this moment, that heavily injured Guixu Cultist was kneeling beneath the altar. He had torn open his own chest, pulled out a black heart that was constantly beating and covered in strange runes, and pressed it onto the base of the altar!

He was chanting blasphemous and fanatical incantations, the Devilish Qi around his body resonating with the remains of the demon god on the altar. The entire cavern was shaking violently, the sealing chains clanking, and the light flickering uncertainly!

"With my heart and Soul, I offer to my master! Please descend with your great power and tear apart this hypocritical Seal!" He let out a final, frantic cry, and his entire essence, blood, and Soul Power surged into the altar like fuel!

"Stop him!" Supreme Elder Yuheng's face changed drastically, his figure turning into a beam of azure light, rushing straight towards the altar!

But, it seemed to be a step too late!

The mass of dark red remains of the demon god on the altar suddenly erupted with a dark light that engulfed everything. A terrifying will, far surpassing the Nascent Soul stage and seemingly coming from the primordial era, suddenly awakened!