When the battle above the Abyss Realm was still going on, in the world inside the Heavenly Alien Tree, Zhang Yan was standing in front of the black giant tree thousands of feet high at the moment, staring at the black tree in front of him with extremely heavy eyes, and his brows were also deeply furrowed.

Looking intently, I saw that the black demonic qi wrapped around the giant tree, like a dark and cold poisonous snake, constantly spreading towards the top of the tree, the speed was quite slow, but it was visible to the naked eye, if it was not stopped, this giant tree representing the origin of the heavenly alien wood would sooner or later be swallowed by all the demonic energy.

A powerful evil aura emanated from the giant tree, making the world extremely forested, as if the tentacles of countless demons were dancing, which was very terrifying.

Zhang Yan raised his head, his gaze gradually moved towards the top of the giant tree, although the demonic aura was overflowing, he still felt the powerful life aura emanating from the giant tree's body, and that life force was competing with the demonic qi all the time, but it seemed a little powerless.

In the end, Zhang Yan's gaze fell on the top of the tree glowing with verdant light, the powerful life force was desperately resisting the erosion of the black demonic qi, and with the passage of time, that life force was retreating, and the demonic energy was spreading towards the top of the tree inch by inch.

At this time, Zhang Yan's eyes froze, and then he turned into a phantom and quickly swept into the air, appearing in the position where the life force was fighting against the demonic qi, and then flew forward without hesitation, and the palm of his hand was directly slapped out with a palm, and it was printed on the giant tree infected by the demonic qi.

Without waiting for him to mobilize the chaotic qi in his body, the evil demonic qi wrapped around his palm like a black flame, spreading along his arm at an extremely fast speed, intending to devour Zhang Yan's entire body.

Seeing this, Zhang Yan raised his eyebrows, and the rich chaotic qi gushed out of his body, engulfing the demonic qi like a desolate beast, and then quickly devouring and refining.

At the beginning, in the Holy Ancient Demon Territory, he had fought with some remnant souls of the demon race, and he knew a little bit about these evil guys, coupled with the detailed explanations of Yuan Mu Lao and others, he was very sure that the chaotic qi was the power to restrain the demonic qi by nature, and it had been the case since ancient times.

Therefore, in the eyes of Zhang Yan now, these demonic qi are the power to quickly improve his strength, but Zhang Yan's cheeks did not show any joy because the chaotic qi could refine the demonic qi, but was quite dignified.

Shaking his head gently, Zhang Yan immediately muttered to himself: "I hope there won't be that kind of troublesome thing!"

The influx of chaotic qi seemed to make the demonic qi feel threatened, but it also seemed to completely enrage it, and even when it saw the more ferocious black demonic qi surging, it turned into a hideous black demonic snake and began to bite and tear the chaotic qi released by Zhang Yan, wanting to suppress it back, or devour it like devouring the power of life.

And the resistance of the demonic qi did play a role, and the speed at which the chaotic qi devoured the demonic qi became significantly slower. However, Zhang Yan's pupils shrank suddenly, and he began to realize the seriousness of the matter, the speed of devouring demonic qi like this was too slow, and it was necessary to completely get rid of it, ranging from a few hours to three or five days, and the longer the time dragged on, the more unfavorable it would be to Tongtian Yimu.

Now Tongtian Yimu is fighting with the Dark Slaughter Holy Emperor, and he can't withstand the long-term consumption at all, I'm afraid that in less than three or five days, Tongtian Yimu will already be defeated in the hands of the latter, and at that time, his life will also hang by a thread!

His eyes stared intently at the black demonic qi that was entwining the giant tree, and then Zhang Yan slowly withdrew the chaotic qi released from it, and finally completely converged, allowing the demonic qi to cover his palms, arms, and even his entire body, wrapping all his limbs and heads.

From the demonic energy, he felt endless negative energy, fear, jealousy, hatred, evil thoughts...... Everything wrapped around him like a tidal wave, and began to soak into his body along his pores, surging towards the sea of qi, the sea of divine consciousness, and the sea of souls.

In just an instant, Zhang Yan felt that he had fallen into an endless dark abyss, and his body was surrounded by evil monsters condensed by those negative energies, and he couldn't see his face clearly, but he began to tear apart his body and soul with his teeth and claws, like a bottomless black hole gradually devouring it!

However, in the next moment, all the negative energy that enveloped Zhang Yan disappeared cleanly, and his consciousness instantly regained clarity.

Within the soul sea, I saw the golden light on Zhang Yan's soul body surging out, and the entire soul sea became golden, and all the black demonic qi evolved into a golden glimmer under the illumination of the golden light, and was finally forcibly swallowed by the soul body.

And in the sea of knowledge, Tianyuan Road erupted with a pale gray light, like a giant beast that had been hungry for a thousand years, pulling the black demonic qi over like crazy, and then devouring it all!

The picture in the sea of qi is even more magnificent, as if it was stimulated by demonic energy, and the chaotic crystals that closed half of the sea of qi began to gush out of chaotic qi crazily, that is, I saw the endless chaotic qi swept out with a tsunami of momentum, swept over, and the demonic qi was completely submerged, and finally turned into the purest origin energy and injected into the wheel of the holy Xuan, rapidly growing Zhang Yan's power.

Zhang Yan looked inward, and when he saw this scene, he couldn't help but grow his mouth in a daze, he still seemed to be too low on the instinctive power of the Chaos God Body, and immediately felt a joy in his heart, and the seal in his hand changed for a while, and the violent suction power surged out of his body, forcibly pulling the endless dark demonic qi into his body!

And time quietly disappeared in the process of Zhang Yan's crazy devouring of demonic qi, but to his great surprise, the demonic qi that eroded the giant tree did not decrease, and the realm of life force and demonic qi resistance not only did not weaken, but still moved slowly upward as it did at the beginning.

At this time, the giant tree suddenly trembled violently, and immediately erupted into a strong emerald green light, and the rich life force spread, but the next moment, the life force suddenly weakened, and the emerald green light emitted by the giant tree also suddenly dimmed a lot.

"Damn it!"

Zhang Yan gritted his teeth and resigned angrily, and immediately withdrew his palm, devouring demonic qi like him is not the fundamental solution to the problem at all, the demonic qi that erodes the heavenly alien wood must have a source, and only by getting rid of the root cause of demonic qi can everything turn around.

His gaze suddenly froze, Zhang Yan's figure flickered, and he swept down towards the ground, and finally stood in front of the giant tree!

"Boom!"

With a loud bang, I saw a big pit suddenly emerge from the ground under Zhang Yan's feet, and the Origin Rock Attribute Xuan Qi suddenly surged out, seeping into the depths of the ground and surging towards the deeper underground layer.

The hands did not stop, both hands were sticking out, imprinted on the thick trunk of the tree, chaotic qi gushed out, under Zhang Yan's control, turned into a small line of qi like a little thumb and spread rapidly on the giant tree, although there was a demonic qi blocking, its speed was still not slow.

About a quarter of an hour passed, Zhang Yan's eyes suddenly looked at a certain place in the giant tree, and then his body shook, he stood in the air, his eyes were cold and looked at the giant tree in front of him, and then turned into a black welcome and disappeared into the tree!

In the endless demonic energy space, a figure dressed in black appeared, but in front of him was a dark black heart suspended, the heart was pounding, and the endless demonic qi was pouring out from the heart, filled with a strong and evil power fluctuation, which made Zhang Yandu feel frightened.

"Demon Emperor's Heart!"

Suddenly recalling what Origin Mu Lao had said and what he described, Zhang Yan immediately exclaimed.

The Demon Emperor's Heart is the heart of the most powerful Demon Emperor of the Demon Race after his death, and all the power of the Demon Race comes from the heart, and the Demon Emperor's Heart in front of him is equivalent to the root of a Demon Emperor, containing most of the power of his life.

It's just that why is the heart of a Demon Emperor in the body of a different tree? Zhang Yan looked at the heart of the Demon Emperor in front of him and fell into a short period of contemplation.

"The predecessor of Tongtian Yimu once wanted to devour this Demon Emperor's heart, and wanted to refine it with powerful life force, but the result was the opposite, and he himself was eroded by this Demon Emperor's heart!"

Zhang Yan guessed in his heart, but a violent tremor from the giant tree woke him up, and now was not the time for him to consider the reason.

"No matter what, let's get rid of this Demon Emperor's Soul first!" Zhang Yan muttered to himself, the chaotic qi in his hand condensed, and then slowly leaned out towards the Demon Emperor's Heart.

However, just when his palm was about to touch the Demon Emperor's heart, a hideous human face suddenly appeared on his heart, and he was lucky enough to be like Zhang Yan, who was also taken aback, and the palm that poked out was stagnant and stopped in front of the Demon Emperor's heart.

Seeing that Zhang Yan's expression was slightly frightened, the strange face of that palm was a strange smile, and the voice was gloomy and cold, penetrating the heart, giving people a chilling sense of fear!

"Human, why didn't you make a move?"

Hearing this, Zhang Yan's eyebrows frowned, and he said in a condensed voice: "Are you still alive?"

"Boom...... This emperor was already dead, but thanks to the old fool who was a strange tree in the sky, he wanted to refine this emperor and get the power of this emperor, but this emperor was so easy to deal with, so this emperor came back to life. The Demon Emperor said lightly.

"The life force has a restraining effect on the demonic energy, and under the strong life force, can you still survive?"

"Because Bendi has adapted to the life force, thanks to the confusion of Tongtian Yimu, Bendi was able to survive and devour and possess his body. The hideous gaze glanced at Zhang Yan, and then said in a pause: "Of course, and your body, it is the power to help this emperor resurrect!"

Hearing this, Zhang Yan's expression became even more solemn, and he immediately frowned and said, "Are you really the Demon Emperor of the Demon Clan?"

"This emperor is not a demon emperor, could it be that you are still a demon emperor?"

"And how many layers of power do you have now?"

The Demon Emperor glanced at Zhang Yan contemptuously, and said contemptuously: "You still want to escape from the hands of this emperor?"

Regarding the Demon Emperor's heart-wrenching words, Zhang Yan laughed indifferently.

"I just want to think about whether I can break through the two realms after refining you!"