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Boom!
A massive bolt of purple lightning crashed down, unleashing earth-shattering power.

When the lightning dissipated, the old doctor's figure was revealed, surrounded by countless sword energies that completely protected him.

When the sword energy dissipated, the old doctor was found to be completely unharmed, as if the tribulation lightning was nothing more than a gentle breeze to him.

This left Wei Shanhai speechless.

This was already the sixth tribulation lightning bolt. In his view, each one possessed the power to destroy the heavens and the earth, causing the world to tremble.

The result was that nothing could do anything to the old doctor, not even to the point of injuring him.

This composure was something Wei Shanhai could hardly imagine. Just how profound was the old doctor's foundation that made such terrifying tribulation lightning helpless against him!

On the contrary, Xiaoyan and Xiaoli were not surprised by this.

Grandpa Chen's understanding of the Dao Laws is even greater than theirs, so it's perfectly normal that the previous tribulation lightning bolts couldn't harm him.

As for Lu Qing, he nodded slightly.

"Master's understanding of the Dao of Water and Fire has reached an extremely profound level, even surpassing that of many Nascent Soul Realm cultivators."

However, due to the cultivation environment in his home world, he has only been able to cultivate to the Golden Core Perfection realm.

If this were in the Tianyuan Great World, he would probably have broken through and achieved the Nascent Soul stage long ago.

With Lu Qing's current level of cultivation, he could tell his master's current state at a glance.

Master's understanding of the laws of water and fire has far surpassed his current level, reaching a level that many Nascent Soul Realm cultivators cannot achieve.

More importantly, the master also fully integrated his understanding of the laws into the swordsmanship domain he created.

All the insights and feelings were blended into one.

This allows any Taoist technique to receive a significant boost whenever he unleashes his domain.

This is why even the first six tribulation lightning bolts couldn't harm him.

Because once the tribulation lightning enters the master's domain, it will be weakened and differentiated layer by layer.

The power that ultimately struck him was merely a test, unable to truly harm his essence.

"That's not enough. The next three tribulation lightning bolts won't be so easy."

Lu Qing recalled the information about the heavenly tribulation that he had just discovered using his special ability, and his expression became slightly more serious.

Master's tribulation will still undergo some changes later; it remains to be seen how he will handle it.

As Lu Qing's thoughts shifted, the tribulation clouds above the sky began to change.

With the sound of thunder, the originally deep purple tribulation clouds suddenly took on two more colors: black and red.

Purple, black, and red colors intertwined in the tribulation clouds, causing the power of the heavenly tribulation vortex to surge suddenly.

"The Tribulation of Water and Fire. It is because Master's understanding of the Dao of Water and Fire is too profound, far exceeding the level of the Golden Core Realm. That is why this tribulation with the meaning of the laws has manifested. I wonder how Master will deal with it."

Lu Qing recalled the information about the Heavenly Tribulation, a hint of anticipation appearing in his eyes.

As for his master's safety, he wasn't particularly worried.

Now he was certain that with his master's accumulated experience, surviving this tribulation would be no problem at all.

The difference lies in whether or not the master needs to use the talismans he provides.

In the sky, tribulation clouds of purple, black, and red intertwined and surged, causing the power of the tribulation vortex to suddenly increase several times over.

The vortex, which already covered hundreds of miles, now spun even more violently, as if the entire sky was about to be torn into it.

Deep within the calamity clouds, lightning flashed and thunder roared, each clap of thunder shaking the mountains.

"What...what's going on?"

Wei Shanhai's face turned pale, and his voice trembled.

Although he didn't understand the matter of tribulation, he could still feel that the power of the tribulation at this moment was much stronger than before.

The oppressive aura made even him, an observer, feel suffocated.

Xiao Yan and Xiao Li also looked surprised.

“When we were undergoing the tribulation of the Purple Cloud Primordial Spirit, there were no such changes afterward,” Xiaoyan said, frowning.

She remembered that when she was undergoing her tribulation, although the tribulation lightning was stronger and stronger, the tribulation clouds were always purple and did not have this kind of three-color interweaving change.

Xiao Li nodded, her eyes filled with a serious expression.

Xiao Bai shrank back and took a few steps back.

Only Lu Qing remained calm, still quietly gazing at the figure on the distant mountaintop.

He knew this was a "water and fire tribulation".

Because the master's understanding of the Dao of Water and Fire was too profound, far exceeding the level that the Golden Core Realm should have, the Heavenly Tribulation manifested such changes that carried the meaning of the laws.

This kind of tribulation is much more dangerous than the ordinary tribulation of the Purple Cloud Primordial Spirit, but once you overcome it, the rewards will be much greater.

"It all depends on how Master handles it," Lu Qing thought to himself.

At the summit, the old doctor looked up at the three-colored tribulation clouds in the sky, his expression remaining calm.

The interwoven purple, black, and red light shone on his aged face, giving his eyebrows and eyes a strange luster.

He wasn't surprised; he just watched quietly, a thoughtful look in his eyes.

With his comprehension and understanding of the principles of water and fire, the suddenly changing calamity clouds subtly stirred something within him.

"The Way of Water and Fire... the meaning of its laws..."

The old doctor muttered to himself, as if he were contemplating something.

A moment later, a look of realization dawned on his mind.

Just then, a deafening roar exploded in the sky.

The seventh bolt of tribulation lightning struck.

It was a bolt of lightning with three colors intertwined.

With purple as the base, black and red intertwine and collide, as if three giant dragons are fighting each other, bringing with them the power to destroy the world, and cleaving straight down from the heavens.

Wherever the lightning passed, the void trembled.

That invisible space seemed to be torn open with fine cracks, which then quickly healed.

Every tear and healing has unleashed a heart-stopping wave.

The mountains within a radius of a hundred miles trembled violently at that moment.

Countless rocks tumbled down, and countless ancient trees snapped, as if the end of the world had arrived.

"This...this is terrifying!"

Wei Shanhai's legs went weak, and he almost collapsed to the ground.

In all his years of life, this was the first time he had ever witnessed such a terrifying sight.

Xiao Yan and Xiao Li also had solemn expressions, staring intently at the descending lightning bolt.

Although they believed in Grandpa Chen's strength, the power of this tribulation lightning was indeed too terrifying.

At that very moment, atop the mountain, the old doctor made a move.

He slowly raised his right hand.

A long sword appeared in his hand at some unknown time.

The sword looked ordinary, with a long blade and a concealed edge, without any decoration, as if it were just an ordinary iron sword.

But the moment the old doctor grasped the sword hilt, an indescribable aura rose from his body.

It was an aura so sharp it was almost overwhelming.

Within its sharpness lies a gentleness that embraces all things.

It was like a gentle spring breeze and nourishing rain, or like a leaping raging fire.

Two completely different meanings are perfectly integrated in him, without any distinction between them.

Then, a strange realm finally manifested itself.

The domain, centered on the old doctor, instantly expanded and enveloped the entire mountaintop.

Within the realm, water flows gently and flames flicker.

Water and fire intertwine yet do not invade each other, creating a harmonious scene.

What's even more peculiar is that both the water and the flames contain a sharp, piercing edge.

That was sword intent.

The old doctor's sword intent had been completely integrated into his understanding of the principles of water and fire; the three were now one, inseparable.

"I see……"

A knowing glint flashed in Lu Qing's eyes.

His master's realm was even more mysterious than he had imagined.

It is neither a simple water domain nor a simple fire domain, but a unique sword domain forged with sword intent as its bone and the principles of water and fire as its flesh and blood.

In this realm, the master is the ruler.

Any power that enters this domain will be worn down by water and fire, and weakened by sword intent.

This is also why the previous six tribulation lightning bolts couldn't even injure the master.

Now, the old doctor was finally about to make his move.

He looked up at the falling tribulation lightning, his eyes showing no fear, only calm.

Then, he swung his sword.

A beam of sword light shot into the sky.

The sword light was not dazzling; in fact, it could be described as somewhat plain.

There were no flamboyant colors, no astonishing momentum, just a simple sword strike, slashing straight towards the sky.

But even with just this one sword strike, Lu Qing's eyes revealed a look of admiration.

Because he could see that this sword strike had returned to its original simplicity.

That sword strike contained his master's lifelong understanding of the way of the sword, his comprehension of the way of water and fire, and his hundreds of years of arduous training and accumulation.

Not a single bit is superfluous, not a single bit is wasted.

Perfectly timed, perfectly natural.

The sword light and the tribulation lightning collided instantly.

boom!!!
A deafening roar shook the heavens and the earth.

The tribulation lightning of three colors was actually cut in two by the old doctor's sword light!

Wei Shanhai opened his mouth wide, unable to speak.

He couldn't imagine that such a devastating tribulation lightning could be cleaved in two by a single sword strike!

But the power of the Heavenly Tribulation is not so simple.
The lightning bolt, which had been cleaved in two, did not dissipate.

Instead, they split into two paths, one red and one black, and continued to slash at the old doctor from the left and right.

The red color was like fire, scorching and intense.

The lightning bolts were as black as water, chilling to the bone. Each bolt contained pure legal principles, their power undiminished.

The old doctor remained expressionless.

He turned slightly and swung his longsword once more.

This time, he swung his sword twice.

One sword to the left, one sword to the right.

Two sword lights met the red and black lightning bolts respectively.

Boom! Boom!
Two more loud bangs.

The two bolts of lightning, one red and one black, were once again cleaved apart by the sword light.

This time, however, the lightning bolts that were cleaved did not split apart; instead, they exploded directly, turning into countless tiny bolts of lightning that enveloped the entire mountaintop.

In an instant, the mountain peak where the old doctor was located was completely engulfed by red and black lightning.

Looking down from the sky, the mountaintop appeared to be a giant red and black yin-yang millstone, slowly turning.

With each rotation of the millstone, countless bolts of lightning exploded, unleashing a terrifying power.

The mountain peak beneath the old doctor's feet was being crushed bit by bit as the millstone turned.

Huge boulders rolled down, and the entire mountain peak visibly shrank.

"Grandpa Chen!"

Xiao Yan gasped in surprise, her face turning pale.

Xiao Li stared intently at the red and black millstone, a look of worry in her eyes.

Xiao Bai was so anxious that she spun around in circles, not knowing what to do.

Only Lu Qing remained calm, quietly watching the red and black lightning.

He could sense that although his master's aura fluctuated, it remained stable.

Although the millstone was terrifying, it couldn't harm the master's core.

Time passed little by little.

The red and black millstone gradually slowed down its rotation.

Finally, the lightning gradually dissipated, revealing the view from the mountaintop.

No, there is no mountaintop anymore.

The mountain, which was originally towering into the clouds and supported by the power of the heaven and earth formation, has now been ground down by more than a hundred feet, leaving only a huge platform.

On the platform, the old doctor looked somewhat disheveled.

His robes were torn in many places, revealing his scorched skin underneath.

His hair was somewhat disheveled, with a few strands of white hair hanging over his forehead. His body also bore many wounds, some of which were still oozing blood.

But his eyes were brighter than before.

Within that brightness lay a trace of contemplation, a hint of sudden realization, as if something had been gleaned from the tribulation lightning just moments before.

"Grandpa Chen is alright!"

Xiao Yan was overjoyed and almost jumped for joy.

Xiao Li also breathed a sigh of relief, her eyes filled with joy.

Wei Shanhai collapsed to the ground, panting heavily, as if he himself had just undergone the tribulation.

Lu Qing nodded slightly.

Master is indeed amazing.

Although the seventh tribulation lightning was fierce, Master managed to withstand it with his own strength, and judging from his eyes, he seemed to have gained some insight from it.

This is the true meaning of transcending tribulation.

It's not simply about enduring being struck by lightning, but about comprehending the Dao amidst the thunder and tempering oneself between life and death.

In the sky, the three-colored tribulation clouds surged once again.

The eighth tribulation lightning is brewing.

This time, the calamity clouds surged even more violently.

The purple, black, and red lights flickered erratically, as if three giant dragons were fighting in the clouds, ready to pounce at any moment.

The old doctor looked up at the sky and took a deep breath.

He looked down at his injuries, then at the longsword in his hand, and then looked up again at the churning clouds of calamity.

His eyes remained calm, without a trace of fear.

A moment later, the eighth bolt of tribulation lightning struck.

This tribulation lightning was even stronger than the seventh one.

The interwoven tricolor light illuminated almost the entire world.

Its immense power not only made the mountains tremble, but also made the earth shake.

The old doctor swung his sword again.

The sword light soared into the sky, colliding with the tribulation lightning.

boom!
The deafening roar shook the heavens and the earth.

This time, the old doctor was not able to completely block the tribulation lightning.

The sword light clashed with the tribulation lightning for a moment, but was eventually broken through by the lightning and struck the old doctor hard.

The mountain was enveloped once more, and boundless power erupted.

By the time the eighth lightning bolt had completely dissipated, the old doctor was covered in wounds, charred black, and his life force had greatly diminished.

But the thoughtful light in his eyes shone even brighter.

“There’s one last dish…” Lu Qing said softly.

In the sky, the three-colored calamity clouds surged to their extreme.

The purple, black, and red rays of light had completely merged into one, transforming into an indescribable gray.

Something was brewing within that grayness.

A moment later, the ninth bolt of tribulation lightning struck.

Boom!

The final bolt of tribulation lightning fell from the heavens, causing the void to collapse wherever it passed.

The space of their home world was far more fragile than that of the Tianyuan Great World; how could it withstand such power?

As the light fell, countless dark cracks appeared, spreading outwards in all directions like a spider web.

Within those cracks, one could faintly see turbulent void currents surging, emanating a chilling aura.

"Space has shattered!"

Xiao Yan exclaimed in surprise.

Although she was already a Nascent Soul Realm cultivator, she was still terrified at the sight.

Xiao Li's fur stood on end; even though it had already achieved the primordial spirit, it still felt a strong threat.

The enormous bolt of lightning struck straight down towards the mountain where the old doctor was located.

No, it can no longer be called a mountain peak; it's just a huge platform.

The old doctor stood on the platform, looking up at the descending light.

His figure appeared exceptionally small in the light of the lightning.

But he still did not back down.

He took a deep breath and gripped the sword tightly.

Then, he drew his sword.

With this sword strike, he exerted all his strength, even merging his sword domain into the sword light, and slashed out together!
boom!
A deafening roar shook the entire world.

The massive platform shattered instantly.

Countless rocks were shattered into dust, turning into a cloud of smoke and dust that spread throughout the sky.

The lightning and sword light were locked in a stalemate for a moment, but the lightning eventually overwhelmed the sword light and slammed into the old doctor.

The old doctor was blasted underground and disappeared without a trace.

The lightning, still powerful, continued to strike downwards, blasting a bottomless crater into the earth.

The entire world fell silent at that moment.

Only terrifying lightning remained, engulfing the entire land and ravaging everything.

After a long time, the lightning dissipated and the smoke and dust gradually cleared, revealing the bottom of the giant pit.

A figure lay there quietly.

It was the old doctor.

He was covered in wounds, with hardly a patch of undamaged skin. His robes were torn, revealing a crisscrossing network of scars beneath. His breath was extremely faint, as if he might dissipate at any moment.

But his eyes remained open.

Those eyes were still bright, still resolute.

Like a pine tree on a cliff that has withstood the wind and frost and still stands tall.

"Grandpa Chen is still alive!"

Xiaoyan was overjoyed, and tears finally streamed down her face.

Xiao Li and Xiao Bai cheered and spun around excitedly.

Wei Shanhai was moved to tears, repeatedly saying "That's wonderful, that's wonderful."

Lu Qing also smiled.

The nine tribulations of lightning have passed, and Master's primordial spirit tribulation has truly been overcome.

Sure enough, at that moment, the churning clouds in the sky began to gradually dissipate.

The vortex of heavenly tribulation gradually disappeared, as if it had never existed.

A streak of light flew out from the depths of the Heavenly Tribulation vortex and landed directly on the old doctor.

It was a dazzling stream of light, containing endless mysteries.

The instant the light entered his body, countless streams of spiritual energy and vitality surged forth from the depths of the void, enveloping the old doctor entirely.

The spiritual energy and vitality flowed continuously into the old doctor's body, repairing his broken body and nourishing his weak soul.

The old doctor's wounds began to heal at a speed visible to the naked eye.

His faint breath began to rise rapidly, growing stronger and stronger.

The tribulation has passed, and the old doctor has begun to formally refine his primordial spirit! (End of Chapter)