Chapter 675: Tree Demon

Such an explanation was indeed quite reasonable; Zhang Nuo's face had remained expressionless throughout, and it seemed the others had already come to believe he was the reincarnation of the Underworld King of Heavenly Condemnation!

"Forget it! Whose reincarnation I am is not important! Let us resolve the problem before us first!"

With a light wave of his hand, Zhang Nuo appeared indifferent. Since the person involved did not want to dwell on this issue, Yanluo Tianzi and the others found it difficult to say anything more. However, ever since learning of this matter, both Zhuanlun Wang and Pingdeng Wang looked at this Human Emperor in a new light.

After the matter of the Underworld King of Heavenly Condemnation came to an end, the group began to set about dealing with those powerful lone souls within Wujian Diyu. Zhang Nuo and Ai Yuchen found a quiet place to study the Demon Refining Pool, while the rest of the group went together to the location of the Black Tower, striving to use the Restriction to seal Wujian Diyu for another period of time.

Inside a spacious room, several giant lamps made of night-luminescent pearls illuminated the place as if it were broad daylight. Zhang Nuo stood to one side with his hands behind his back, his thoughts racing. Combining the Pure Underworld Divine Tree with the Demon Refining Pool to mutate a new tree species capable of purifying lone souls—this could be said to be unprecedented and unrepeatable!

"We must rebuild a Demon Refining Pool!"

Ai Yuchen stood opposite Zhang Nuo, her pretty face also very solemn; after a moment, she spoke slowly.

"No need! Zhang has one here!"

As he spoke, Zhang Nuo flicked his robe sleeve, and after a flash of five-colored rosy light, a Demon Refining Pool several feet in size appeared on the floor of the room.

A look of surprise flickered in the young woman's eyes; she had never expected that Zhang Nuo would actually still have a Demon Refining Pool!

"Where did you get that?"

"Back when I was locked in Huan Shou Gong by you, I once studied the Demon Refining Pool in detail. However, so much time has passed, and I still haven't had a clue. It seems Fairy Ai's art of demon refining is truly unfathomable!"

With a light smile, Zhang Nuo walked to the side of the Demon Refining Pool and reached out to stroke the edge of the pool.

"The Human Emperor is truly a thoughtful person! Even after escaping Huan Shou Gong, you did not forget to take a pool to study!"

Also walking to the edge of the pool, Ai Yuchen gazed at the Demon Refining Pool. Her thoughts seemed to have returned to over a thousand years ago! With a flip of her jade hand, a cluster of green light spots emerged and instantly fell into the pool. Suddenly, more than half a pool of green liquid appeared in the previously empty pool!

"This pool is secondary; it is mainly this little woman's 'Biqiong Liquid' that is the essence of this Demon Refining Pool!"

Looking at the Demon Refining Pool that had become exactly as it was back then, a bright light flashed in Zhang Nuo's eyes. No wonder he had studied the pool for so long without ever getting results; it turned out the main thing had always been on Ai Yuchen herself!

"Fairy's Wood Attribute Divine Ability is truly breathtaking! Alright, now you can tell Zhang about the essence of this Demon Refining Pool, right?"

Nodding slightly, Ai Yuchen explained the entire structure and principle of the Demon Refining Pool! Zhang Nuo listened earnestly, secretly noting down the few useful things in his heart.

Several days later, outside the giant Black Tower, several Great Accomplishment Stage cultivators floated in mid-air, looking at the constantly shaking tower body with a touch of seriousness in their eyes! Just how many lone souls were imprisoned within Wujian Diyu? Even Zhuanlun Wang and the others could not say clearly! Over countless years, many lone souls had been imprisoned here!

Yet, very few walked out of Wujian Diyu. The reason was none other than that these powerful lone souls had too heavy a baleful aura, which was simply not easy to eliminate! They could only adopt the method of suppression!

However, the matter of the Chaos Insect King caused those suppressed lone souls to come alive, and the ferocity of their backlash made one's heart run cold! Jialouluo took the lead in casting several dharma techniques to begin reinforcing the Black Tower, and when the others saw this, they all exerted their full strength!

Several hours later, the situation within Wujian Diyu was finally brought under control, but this was only temporary. Distant water cannot put out a nearby fire; once the force of the lone souls' backlash increased, even if these Great Accomplishment Stage cultivators exhausted all their skills, they would not be able to stop them from rushing out of Wujian Diyu!

"How is it on the Human Emperor's side?"

Jialouluo sat on the main seat of Senluo Dian, his expression constantly shifting; his main goal was not in the Underworld, but the current situation had bound him here!

To successfully return to the True Immortal Realm, he still needed the power of these Great Accomplishment Stage cultivators, so he could not just walk away.

"The Human Emperor and Fairy Ai seem to be studying it carefully; it looks like there has been some progress!"

Yanluo Tianzi said with a worried expression; this matter was of paramount importance to the Underworld! Previously, due to the fighting, several of the Ten Kings had opened the hells they governed, causing lone souls to flood the Underworld. If Wujian Diyu could not be held either, the entire Underworld would be in complete chaos!

"I really hope they can be a bit faster!"

Looking up at the black sky, Jialouluo was heavy-hearted!

Having finally resolved the matter of the Chaos Insect King, he had not expected another such incident to occur, and the plan to return to the True Immortal Realm was also indefinitely delayed!

Three years later, the group had just finished reinforcing the seal on the Black Tower and returned to Senluo Dian. At this time, everyone's expressions were exceptionally solemn. During this period, the Black Tower had become increasingly unstable, and there were several times it was almost breached by the lone souls!

As soon as they walked into the main hall, they suddenly discovered that Zhang Nuo and Ai Yuchen were standing there!

"You... have you thought of a solution?"

Zhuanlun Wang's face was full of worry, but upon seeing these two, a glimmer of hope rose in his heart, and he walked quickly to Zhang Nuo's side!

"You could say that! Take a look at these first!"

Zhang Nuo smiled faintly, and with a flick of his robe sleeve, a green light flashed. Then, appearing before everyone were over a hundred tree-men!

These tree-men were only two feet tall; their lower bodies were like tree roots that had just been pulled from the soil, while their upper bodies were dense leaves! Despite having tree-root lower bodies, their movements were very swift! They moved back and forth in Senluo Dian without stopping!

"This is... what are these things?"

"Wuliang Tianzun! Is this a plant or a demon beast?"

"Amitabha! What a strange form of life!"

Although the cultivators present were all Great Accomplishment Stage existences, after seeing this scene, they all revealed expressions of astonishment! Plants were plants, and animals were animals! This was the first time they had seen a life form that combined plants and animals!

"These little fellows—the Human Emperor and I have given them a name called Tree Demons! As the name suggests, they are a new life form cultivated using the Human Emperor's Pure Underworld Divine Tree and this little woman's Demon Refining Pool!"

Ai Yuchen looked at the surprised crowd, her eyebrows slightly raised, and a hint of joy appeared on her pretty face!

"Moreover, these Tree Demons have also retained the most important function of the Pure Underworld Divine Tree! Purifying souls!"

As soon as Zhang Nuo uttered these last four words, the faces of Zhuanlun Wang and the other Underworld cultivators lit up with joy. However, they were immediately a bit skeptical; looking at these Tree Demons, there was not much spiritual light fluctuation radiating from their bodies, so how could they contend with powerful lone souls?

Seeming to see through Zhuanlun Wang's worry, Zhang Nuo said again:

"These Tree Demons are only a small portion. Fairy Ai will continue to produce Demon Refining Pools, and each pool will produce tens of thousands of these Tree Demons. When that time comes, with a large number of Tree Demons, solving even more lone souls will not be a difficult task, and the Demon Refining Pool can be used repeatedly!"

In Senluo Dian, everyone finally let out a long sigh of relief, especially Jialouluo; as long as the matter of the Underworld was resolved, then they could discuss going to the True Immortal Realm!

Since there was a solution, the Underworld immediately set to work. After preparing the materials required by Ai Yuchen, the young woman chose a place and began to produce Demon Refining Pools in large quantities!

As each pool was built, Zhang Nuo placed a branch and leaf of the Pure Underworld Divine Tree into each pool! Ai Yuchen's 'Biqiong Liquid' was itself a Wood Attribute substance; it could fit very well with the branches of the Divine Tree, and with the cultivation of the Demon Refining Pool, in just over a year, thousands upon thousands of Tree Demons appeared!

Zhuanlun Wang and the others first put these Tree Demons into the Underworld, letting them search for lone souls that needed purification on their own, and the effect was surprisingly good! In just a few months, the number of lone souls on the outskirts of the Underworld decreased by an astonishing amount!

Having been verified, Yanluo Tianzi and the others began to teleport into the interior of Wujian Diyu. After hundreds of thousands of Tree Demons entered Wujian Diyu, the backlash power of the lone souls inside indeed weakened!

Seeing this, Zhuanlun Wang and the others snuck into Wujian Diyu and used Soul Chains to re-seal several powerful lone souls!

A catastrophe was thus quelled! However, the time delayed in the process was a full fifty years! During these fifty years, Zhang Nuo also gained a greater understanding of the Underworld!

Especially the Black Book in his hand! Through the translation of several Underworld cultivators, the contents of this big book were all brought to light!

Zhang Nuo also left behind several types of lost Underworld cultivation techniques, but this book remained in his possession!

Because the true name of this book was: Book of Heavenly Condemnation! This meant that this Black Book was written by the Underworld King of Heavenly Condemnation himself! Besides recording many Underworld methods, it was also an extremely powerful Magic Treasure! It was just that at the time, he did not understand the contents of the 'Book of Heavenly Condemnation', and thus could not use it!

This action of Zhang Nuo's won even more favor from countless Underworld cultivators, and some even firmly believed that he was the reincarnation of the Underworld King of Heavenly Condemnation!

After several months of peace, Jialouluo gathered everyone in Senluo Dian once again!

"I have gathered everyone here this time to discuss the matter of going to the True Immortal Realm. After all, this journey to the True Immortal Realm is fraught with danger! If anyone wishes to withdraw, there is still time now!"

Gazing down at the crowd below, Jialouluo did not have the slightest intention of forcing anyone this time!