Liu Wuxie’s action alarmed the higher-ups of the Profound Spirit Pavilion, who walked out of their rooms and looked at the depth of the courtyard.

"Who’s forging a weapon to create such a terrifying phenomenon?"

Liu Wuxie was unaware of everything happening outside because he was in the cultivation chamber. A thick layer of thunderclouds appeared above his cultivation chamber. Lightning flashed, a sign that a tribulation was descending.

"The tribulation only appears when forging an origin artifact. Could there be a Nascent Transformation Realm expert attempting such a feat?" An old man in the Astral River Realm gazed at the sky, his expression filled with horror.

More higher-ups of the Profound Spirit Pavilion gathered with disbelief on their faces.

"Have you investigated who’s in the seventh courtyard?" asked the old man who spoke earlier.

"It’s a junior in the sixth-level True Core Realm." The deacon in charge of the counter took out a book detailing a young man who had entered the seventh courtyard.

He had a deep impression of Liu Wuxie, who had paid 150,000 spirit stones without hesitation. He was surprised back then because this amount wasn’t something ordinary cultivators in the True Core Realm could come up with.

"Sixth level of the True Core Realm?" Everyone looked at each other with shock because this wasn’t something ordinary cultivators in the sixth level could achieve.

Thunder dragons began shuttling in the thunderclouds, opening their mouths and spitting countless lightning bolts.

When the first strand of spiritual rune entered the Heretic Blade, it caused the entire cultivation chamber to tremble violently.

Cracks began to appear on the surface of the Heretic Blade because the spiritual rune was too powerful, while the Heretic Blade’s grade was too low. This was the same as trying to squeeze a giant meteorite into a bowl.

There was no way a bowl could fit a giant meteorite. The Heretic Blade was the bowl, while the spiritual rune was a massive meteorite. The slightest mistake could destroy the Heretic Blade.

"Array flags!" Liu Wuxie inserted ten array flags into the surroundings, causing a gust of wind in the cultivation chamber. Spiritual energy began to be drawn from underground to replenish his dantian.

"Repair spiritual rune!" A golden spiritual rune was like a tadpole seeping into the cracks on the Heretic Blade.

This spiritual rune began to repair the cracks on the Heretic Blade, but the spiritual rune continued to impact the blade’s interior, destroying countless spiritual runes inside.

Beads of sweat rolled down Liu Wuxie’s forehead as he began inscribing spiritual runes meant to repair, but this was risky. Injecting spirituality could stimulate the xiantian spirit, allowing it to awaken quickly.

This was a dangerous approach because the Heretic Blade was just upgraded to a spiritual treasure, and forcing the xiantian spirit to awaken would lead to its death and the disappearance of spirituality.

However, Liu Wuxie didn’t have a choice but to make this move, and he poured all the liquified spiritual energy from the Sky Devouring Divine Cauldron into the Heretic Blade.

The xiantian spirit pulsated and expanded. It hadn’t awakened yet, but its spirituality was significantly strengthened. Liu Wuxie suppressed the heavenly artifact’s spiritual rune, and the Heretic Blade’s repairing speed increased.

"Fire!" Boundless flames engulfed the heavenly artifact’s spiritual rune, slowly erasing the imprint and causing the spiritual rune to become transparent.

The heavenly artifact’s spiritual rune began to melt under the flame and burrowed into that wisp of spirituality through a liquid form. But right then, a terrifying thunderbolt descended from the sky and struck the Heretic Blade, leaving a crack in it.

"Shit! It’s a tribulation!" Liu Wuxie exclaimed because tribulations would only appear when forging an origin artifact. He was only forging a spiritual treasure, and it made no sense for a tribulation to appear.

"It must be because of infusing the heavenly artifact’s spiritual rune into it, causing it to be rejected by heaven and earth," Liu Wuxie muttered.

This was the only explanation because he had taken a significant risk by integrating a spiritual rune from a heavenly artifact into it.

"Extinguish!" Liu Wuxie brought out the Sky Devouring Divine Cauldron to devour all the thunderbolts. The Heretic Blade was about to advance, and he couldn’t afford any mistake.

After all, it wasn’t easy for him to merge the heavenly artifact’s spiritual rune into the Heretic Blade, and he couldn’t allow it to fail.

When the Sky Devouring Divine Cauldron devoured the thunderbolts, this seemed to anger the heavens. Thunderbolts began to descend from the sky, traversing through the void and entering the cultivation chamber.

"How is this possible? That’s the Flame of Destruction!" The tribulation alarmed the entire Profound Spirit Pavilion, and it could be felt throughout Fan City.

Using the Profound Spirit Pavilion was advantageous because the customers’ identities would be kept secret. This place provided excellent resources and ensured personal safety and secret-keeping.

The tribulation’s destructive power increased, and the cultivation chamber was in ruins. The surrounding walls were covered in cracks and were on the verge of collapse.

"Hmph, a mere tribulation wants to destroy me? You’re underestimating me!" A terrifying handprint enveloped the Heretic Blade, isolating the surrounding thunderbolts and preventing their approach.

Using this situation, Liu Wuxie extracted all the spiritual runes from the fragment and injected them into the Heretic Blade.

This caused the surrounding space to become unstable, and it wasn’t just thunderbolts but a thunderstorm. The terrifying thunderstorm whipped up powerful shockwaves, and golden thunderdragons were visibly seen in the void, circling and intending to destroy the Heretic Blade.

This was because heaven wouldn’t allow such a monstrous weapon to be born, and it would only become a disaster for humanity.

After absorbing five spiritual runes, the Heretic Blade couldn’t contain anymore, and the spiritual runes could only return to the fragment.

"Sky Devouring Divine Cauldron, devour!" Liu Wuxie showed a hint of madness in his eyes. He planned on using the heavenly artifact’s spiritual runes to reach the seventh-level True Core Realm.

He could only take the risk because he had no path of retreat. He had to reach the seventh-level True Core Realm to overcome the tribulation.

After devouring the spiritual runes, the Sky Devouring Divine Cauldron began to tremble violently. This instantly made Liu Wuxie nervous; he feared the cauldron might explode.

The Sky Devouring Divine Cauldron had become one with him, and his dantian would be affected if the cauldron was destroyed. The Heavenly Dao Book would also be affected like a chain reaction, leading to disaster.

Liu Wuxie’s cultivation was stuck in the pinnacle of the sixth-level True Core Realm, and the spiritual runes’ energy poured into his dantian.

"My body is about to blow apart!" Liu Wuxie felt like he had eaten a mountain, and his body was on the verge of exploding. But the aura he gave off began to climb, instantly reaching the seventh-level True Core Realm.

Two hundred thousand spirit stones disappeared, transforming into liquefied spiritual energy that flowed into his dantian. Liu Wuxie then activated the Desolate Devouring Art, absorbing all the spiritual energy emanating from the underground.

"Elder, we will make a great loss if this continues. The spiritual energy is rapidly disappearing, and the consumption of spirit stones has already exceeded 150,000!"

The Profound Spirit Pavilion’s higher-ups were shocked by this scene. Each courtyard was composed of spiritual arrays, requiring spirit stones to maintain the operation.

In just one breath, Liu Wuxie had devoured over a hundred thousand spirit stones, and the Profound Spirit Pavilion would suffer a huge loss if this carried on. In addition to the two hundred thousand spirit stones he had taken out, this breakthrough consumed over three hundred thousand.

This meant the resources Liu Wuxie required when reaching the ninth-level True Core Realm or Heavenly Dipper Realm would reach an astronomical sum.

"We can still afford this loss. Let’s keep watching." A hundred thousand spirit stones were a negligible sum for the Profound Spirit Pavilion.

The seventh level of the True Core Realm was a whole new world, with true essence and soul energy reaching a whole new level.

Thunderbolts suddenly surged in, wanting to destroy Liu Wuxie as well.

"How dare you!" Liu Wuxie grabbed the thunderbolts in his palm, rendering them immobile. If someone saw this scene, they would probably be scared to death.

After all, lightning manifested heaven’s might, and no mortal would dare to commit blasphemy against it.

But lightning couldn’t harm Liu Wuxie, and he threw it into the Sky Devouring Divine Cauldron, further increasing the lightning in the world in his dantian.

After losing the suppression of lightning, the Heretic Blade’s advancement accelerated. Even so, it was still maintained at the level of an ordinary spiritual treasure, but the spirituality was even stronger than the xiantian spirit.

This naturally left Liu Wuxie puzzled. The xiantian spirit might not have awakened, but the spirituality was stronger than the ordinary xiantian spirit. Even the xiantian treasure sold in the auction couldn’t be compared to the Heretic Blade.

This meant that spirituality would reach a horrifying height when the Heretic Blade advanced to a xiantian treasure.

The crack created by lightning was repaired, and the Heretic Blade grew longer. It now looked like a longsword with an edge on one side.

No one had seen a single-edged longsword before, and the Heretic Blade deviated from the blade’s category, while it couldn’t be considered a sword either. It possessed the dominance of a blade and the sharpness of a sword, becoming a unique existence.

In addition to spiritual runes from the heavenly artifact’s fragment, the Heretic Blade became indestructible. It released a faint ripple, and the surrounding space couldn’t withstand the Heretic Blade’s aura.

The thunderclouds began to disperse because the Heretic Blade was formed, which was impossible to destroy now.

"Thunder tempering!" Liu Wuxie didn’t give up this excellent opportunity to temper the Heretic Blade with lightning. He grabbed a few thunderbolts and struck the Heretic Blade with them.

Lightning arcs danced on the Heretic Blade, etching a layer of intricate snowflake patterns onto its surface. Each snowflake appeared meticulously tempered, though the thunderbolts might have felt aggrieved if they possessed consciousness.

The purpose of the thunderbolts was to destroy the Heretic Blade, but Liu Wuxie used them to temper his blade instead. This made the thunderclouds disperse in the sky even faster.

After the thunderclouds dispersed, the thunderbolts Liu Wuxie had captured significantly weakened. The cultivation chamber gradually regained calm, and Liu Wuxie settled down, crossing his legs.

Liu Wuxie threw up a mouthful of blood because he had to endure the consecutive thunderbolts while refining the heavenly artifact’s spiritual runes forcibly. This process inflicted severe injuries on his body, and he needed time to heal them.

His body was severely ravaged, and he waited till the thunderclouds dispersed before regulating his breathing. The Desolate Devouring Art continued to devour spiritual energy while he took out pills from his interspatial pouch.

He had prepared a lot of pills before coming out on the missions, and the mysterious tree also released wood-attributed energy into his body. This instantly allowed him to heal his injuries.

Only two days had passed in the outside world, which equated to twenty days in the cultivation chamber. Liu Wuxie planned to use the remaining time to consolidate his cultivation.

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