Due to the trouble Xiao Fei caused in the Netherworld Realm, the Dragon Tail of the Demonic Vein also went missing, and the entire Netherworld Realm has now been sealed off.
The demons scoured the Netherworld Realm, searching for remnants of human spies.
The disappearance of An Ye, in particular, caused a major upheaval throughout the demon race.
The Demon Kings on Demon God Mountain had issued a decree: they would search heaven and earth to find An Ye.
If humans dared to harm even a single hair on An Ye's head, they would face the boundless wrath of the entire demon race.
Facing this dire situation, Xiao Fei's clone, along with the immortal artifact of the small world, was temporarily trapped in the Netherworld Realm and could not leave for the time being.
He found a secluded spot, transformed the immortal artifact of the small world back into dust, buried it in the ground, and then hid himself within the immortal artifact.
As for returning directly to the space, he wouldn't dare to do so even if it meant death.
...
Within the space, one of Xiao Fei's clones was reduced to mere bones. However, at this moment, he could only focus intently on a pill in his hand to alleviate the itching on his body.
After a day of effort, he had finally concocted a pill that could temporarily prolong life.
This "Fairy's Undressing" poison was not easily cured, and even after asking Bloodthirsty, the demons did not have a particularly effective antidote.
Xiao Fei was not confident that he could develop an antidote in a short period. He feared that by the time he developed it, everyone would have already succumbed to the poison.
Therefore, he plucked some Jianmu leaves and mixed them with dozens of ten-thousand-year-old immortal herbs to concoct a pill that could prolong life, serving as a temporary measure.
He checked the finished pill in his hand with his spiritual sense. Finding no issues, he unhesitatingly threw the pill into his mouth.
After the pill was refined, although his body and soul still suffered from unbearable itching, new flesh and blood began to grow rapidly on his white bones.
With this life-saving pill, he would not die in the short term.
The first pill was successfully tested. Xiao Fei immediately flew to the branches of the Jianmu tree, plucked leaves, and prepared to refine a large batch of pills.
The branches, leaves, roots, and bark of the Jianmu tree all possessed powerful vitality. With these materials as the main ingredients, refining a life-prolonging pill was not difficult.
Using the Law of Gathering and Dispersion, Xiao Fei quickly refined over ten thousand pills.
He handed them over to the remaining over a thousand poisoned cultivators, temporarily saving their lives.
Only then did he have the mental capacity to slowly research methods for detoxification.
Another ten years passed in the space, and Xiao Fei finally researched an antidote that could cure the "Fairy's Undressing" poison.
Ten years in the space meant less than twenty days had passed for his over a thousand subordinates outside.
He finally succeeded in detoxifying these over a thousand subordinates from the "Fairy's Undressing" poison.
These thousand-plus individuals were all elites cultivated by Huang Feifei. After detoxification, they were redeployed to the battlefield.
Concurrently, he had planted the "Fairy's Undressing" poison strain, obtained from beneath Demon God Mountain, in a corner of the space.
Several layers of walls made of immortal energy were used to isolate it from the outside, preventing the poison gas from spreading, but a small amount of toxin still seeped out.
Since this poison was so malicious, he definitely wanted to cultivate more of it to use against powerful enemies in the future.
After ten years in the space, Huang Feifei's condition began to improve.
Initially, Xiao Fei stayed by her side, not daring to breathe too deeply, fearing he might trigger Huang Feifei's self-destruction.
Xiao Fei had to take a risk and make a difficult choice.
Huang Feifei's wood-attribute spiritual root had been elevated to its peak years ago with the help of Marrow Cleansing Pills.
Therefore, her ability to comprehend the Dao of Life and Death was also partly due to her wood-attribute spiritual root.
Now, Xiao Fei took out a pile of high-grade Marrow Cleansing Pills of the fire, earth, metal, and water attributes, and used the Law of Dispersion to turn the pills into mist.
Then, he slowly infused this misty medicinal efficacy into Huang Feifei's body, allowing her body to absorb it evenly, little by little.
Xiao Fei continued this careful operation for six years.
Through the gradual improvement of the Marrow Cleansing Pills, Huang Feifei's other four spiritual roots were slowly increasing.
In the sixth year, all five of her elemental spiritual roots reached their peak.
When Huang Feifei also possessed the peak five elemental spiritual roots, the conflict between the two energies within her body finally began to ease.
By now, she was no longer in danger of exploding at the slightest touch, as she had been at the beginning.
One day, a powerful aura fluctuation suddenly erupted from Huang Feifei's body, and all the immortal energy in the space surged towards her.
The immense fluctuation in energy pushed Xiao Fei, who was sitting beside her, to the ground.
"Ah! Is she about to break through?"
Huang Feifei's immortal energy and demonic energy had not been completely resolved and merged, yet her aura was steadily climbing.
Xiao Fei had never witnessed a situation like Huang Feifei's, with two different energies coexisting within her body.
Now, these two energies were coexisting peacefully and were even beginning to break through to the Golden Immortal realm.
As time passed, the two energies within Huang Feifei began to rotate, their speed increasing.
Initially, Xiao Fei could still distinguish between the two forces: one was demonic energy, and the other was immortal energy.
Gradually, as these two forces rotated faster and faster, he could no longer see clearly, only vaguely perceiving black and white colors.
The rotation of the two forces within Huang Feifei's body also caused the surrounding energy to rotate.
The affected range also expanded, and Xiao Fei could only retreat repeatedly.
Initially, it was only the energy within a few feet of Huang Feifei's body that rotated, then it slowly expanded to one to two zhang, three to five zhang...
Later, with Huang Feifei at the center, all the energy within the entire space began to revolve around her.
Xiao Fei, the master, was also forced into a corner of the space.
As the master, he could naturally stop this rotation of energy, but this was a critical moment for Huang Feifei's breakthrough, and he certainly could not do that.
He could clearly sense that when the black energy flowed past him, his vitality rapidly drained, and the immortal herbs on the ground withered and died.
When the white energy flowed past him, a surge of vitality was injected into his body.
The surrounding withered immortal herbs would then regain their vitality.
This was the Dao of Life and Death that Huang Feifei mastered, only its power was even greater than before.
However, as these two energies of life and death continued to flow, changes gradually began to occur.
When the black energy flowed past Xiao Fei, not only did his vitality drain, but his body also began to decay.
It was as if an infinitely great force was pressing down on him, making it difficult to breathe and stand upright.
His emotions and soul were also affected; he felt discouraged, disheartened, and decadent, with all sorts of negative emotions flooding his mind.
When the white light flashed past him, the lost vitality was quickly replenished, and his decaying body regained its vigor.
He felt light and airy, a refreshing coolness, and his spirit soared!
This was no longer the power that the Dao of Life and Death could possess.