Return-to-Origin Gu Control Art, Diamond Gu Mutation!

The Bronze Coffin was only palm-sized, its surface engraved with countless runes. There were even several empty grooves left on it. According to Pang Tong, these grooves could be used to add Gu or formations to guard against the outside world.

Bai Yu poured his mana into the Bronze Coffin, and a cyan glow like a swirling vortex soon emerged. After stepping into the light and passing through a brief darkness, a three-story pavilion appeared before his eyes.

The pavilion had three floors and occupied one-tenth of the Cave Heaven. A pond lay before it, with a gazebo built over the water. Trees, flowers, grass, and a small path through the front courtyard—it had everything. At first glance, it looked like a paradise beyond the mortal world.

"Official disciples of the Heavenly Demon Sect actually receive such treatment."

Yu Linglong's eyes were full of shock. Compared to where menial disciples lived, it was like heaven and earth. No wonder those who entered the Heavenly Demon Sect would fight for their lives to gain the status of an official disciple.

Here, only official disciples could be treated as people!

Seeing Yu Linglong's excited expression, Bai Yu was also quite satisfied with the layout of this Cave Heaven.

Though it looked somewhat small, Cave Heavens could grow. This place was like his own little world. As long as his strength increased, Bai Yu could slowly expand it.

"Now that you're here, you won't need to disguise yourself anymore."

As he spoke, Bai Yu led Yu Linglong forward. Other than the basic furnishings, the pavilion seemed to have been cleared out.

From what Zhao Lan had said, this small Cave Heaven had previously had an owner, but that person had fallen long ago.

Bai Yu did not mind. He could slowly add whatever daily necessities he needed later.

Yu Linglong curiously examined everything within the Cave Heaven.

After taking a lap around the place, Bai Yu slowly sat down beside a table and took out the three jade slips from his ring.

After receiving the Cave Heaven, Bai Yu had immediately received the foundational cultivation art for official disciples of the Heavenly Demon Sect. Following the rules, Pang Tong had also brought him to the Scripture Pavilion to receive the refining methods for two types of Gu.

As well as the two Spirit Stones and ten Qi Refining Eggs that every official disciple could receive.

Though they were all Qi Refining-level Gu, this also meant that the Heavenly Demon Sect had begun spending resources to nurture him.

[Return-to-Origin Gu Control Art] The foundational cultivation art of the Heavenly Demon Sect's Gu Refining Peak.

The path of Gu refinement was not merely about refining Gu. More importantly, one had to control it while refining it. After all, if one suffered backlash, it would be one's own life that was lost.

The stronger a Gu control art was, the stronger its control over Gu would be. Combined with the suppression of one's Natal Gu, the two together formed the path of advancement for a Gu Master.

Though the Return-to-Origin Gu Control Art was only a foundational cultivation art, it was enough for Bai Yu at his current stage.

He pressed the three jade slips to his forehead. A flood of information emerged in his mind, and soon, several new lines appeared on the panel before him.

[Cultivation Art: Return-to-Origin Gu Control Art (Beginner) 0/1000]

[Skill: Cutting (Mastery)]

[Progress: (2860/3500]

[Yin-Yang Mystic Dragon Gu (Natal Gu) (Growth Stage)]

[Dragon Qi Progress: 1423/]

[Yin-Yang Qi: 500/5000]

[Evil Dragon Resentment: 1500/]

[Dragon Blood Stone Gu (Diamond Gu Mutation): 0/1200]

[Blood Mosquito Gu 0/900]

[Calamity Plague Gu 0/1300]

[Delusion-Breaking Golden Eyes (Beginner) (Earth-Entering Eye Mutation): 1122/]

Looking at the information on the panel, Bai Yu let out a heavy sigh of relief. Whether it was cultivation arts or Gu, he could continue grinding their progress.

What excited him even more was that the Diamond Gu had mutated once again!

Dragon Blood Stone Gu: Mutated from the Diamond Gu. It contained a trace of Dragon Qi within it. Not only was its power greater, but it also reduced a Gu Master's mana consumption by one-third.

Even more terrifyingly, the Dragon Blood Stone Gu had broken free from the basic limitations of the Stone Gu. It could be used directly to attack, no longer needing to be fixed within a certain area while waiting for others to step on it themselves.

Blood Mosquito Gu: A Qi Refining-level Gu insect, refined from nine hundred and ninety-nine black mosquitoes. Relying on the insect mother, one could summon swarms of Blood Mosquitoes with a wave of the hand. Wherever they passed, they sucked blood and drained marrow, leaving not even a blade of grass alive.

Calamity Plague Gu: A single-use Gu, refined from poison-rotted flowers, corpse oil, and plague miasma. Once released, it could form a small plague zone. Those afflicted by it would be as if stricken by a plague, trapped between life and death in unbearable suffering.

Looking at the descriptions of the three Gu, Bai Yu's eyes lit up. With these three Gu, along with Black Charcoal, he now had quite a few trump cards.

What was more, all these Gu-refining materials could be bought within the sect, greatly reducing the time Bai Yu needed to spend searching for materials.

Next, he planned to first deal with the gains he had obtained from the mountain journey, then refine the three types of Gu.

Time flew by, and half a month passed in the blink of an eye.

As a former auctioneer, Yu Linglong was naturally capable. Not only did she keep the Cave Heaven in perfect order, but after estimating the value of many items within a reasonable range, she also made it easy for Bai Yu to complete his trades.

Only after she willingly allowed Bai Yu to plant a Slave Seal in her did the ever-cautious Bai Yu finally let loose, taking the snake corpse from the necklace and placing it in the pond within the Cave Heaven.

The instant the dragon corpse appeared, the entire Cave Heaven was enveloped in Dragon Qi. Dense spiritual energy intertwined with Dragon Qi, and the Yin-Yang Mystic Dragon Gu within Bai Yu's body instantly grew excited.

Seeing half of the dragon corpse exposed above the pond's surface, Yu Linglong was shocked beyond measure. No wonder Bai Yu had progressed so quickly. He actually possessed such a supreme treasure!

"With Dragon Qi's support, cultivating in the Cave Heaven will yield twice the result with half the effort. As long as Spirit Stones are placed into the Cave Heaven's Spirit Gathering Formation, it can draw in spiritual energy from outside."

"From now on, you should cultivate properly as well. Though you no longer have the status of a Gu Refining Peak disciple, I will find a cultivation art for you."

Bai Yu took out two Spirit Stones and reminded her.

He was no longer worried about Yu Linglong's betrayal. Things like Slave Seals were cultivated by both righteous and demonic paths, and once planted, they could not be reversed.

There had once been second-generation heirs of great factions who used Slave Seals to control attendants several major realms above themselves.

Though their elders had helped them, it could not be denied that those branded with Slave Seals had become their possessions. Yu Linglong was no exception.

"Can I really awaken a Spirit Root and cultivate?"

"But ever since I was young, I've never had any talent in this regard..."

Hearing Bai Yu's words, Yu Linglong felt somewhat conflicted. She knew that her talent was unsuited for cultivation. Perhaps her Spirit Root could not even break through the Qi Refining Stage.

Even now, bolstered by a large number of Body Forging Pills, she had only barely entered the Sixth Level of the Body Forging Realm. Such progress would be laughable if spoken aloud.

"How would you know if you don't try? In any case, you won't lose out, and it's not as though I can't afford to support you."

Bai Yu smiled. The reason Yu Linglong's cultivation progressed so slowly was entirely because the medicinal power of the large number of Body Forging Pills had been devoured by the Heavenly Fox Bloodline slowly awakening within her body.

This was a process of gestation. Therefore, even if Bai Yu had to pile resources on her, he would pile them high enough to bring her through it. He was certain that Yu Linglong would become a tremendous help in the future.

Hearing Bai Yu's words, Yu Linglong froze, her eyes filled with gratitude.

"Young Master, now that you've finally finished cultivating, shall we rest for a while...?"

Yu Linglong said softly and alluringly.

Before Bai Yu could speak, the token at his waist suddenly trembled. A streak of light shot out, and several large words appeared before his eyes.

"Come to the Cutting Room at once!"

"Pang Tong."