boom!

The sky and the earth roared at this time, and the originally bright sky became dim in an instant. Even the spiritual energy between the sky and the earth sensed some terrifying smell and began to escape from this area one after another.

Woo woo.

In the continuous mountains, countless spirit beasts trembled and let out shrill wails. The Black God Thunder Tribulation is absolutely extremely terrifying for all spirit beasts.

During their long practice, they are looking forward to the arrival of the thunder tribulation that can transform them, but they are also extremely afraid of it...

Mu Chen stood on a mountain, looking at the nine heavens with a serious look. There, the black thunder clouds were constantly condensed and formed, and there was a flash of black light. The power of thunder was so violent that it was indescribable. Even the thunder river in the eighth level of the Thunder Domain was nothing compared to it.

It is a truly destructive force that comes from the world.

And under the terrifying black god thunder cloud, there was the Nine Nether Bird that flapped the wings of the mountains. Its huge body was burning with black flames. Under the evaporation of the black flames, the temperature between the world increased accordingly.

Whenever the Jiuyou Bird sways its wings, it will bring about a hot hurricane that swept across the world.

"Cry!"

The clear and clear sound of the Nine Nether Bird resounded. Its eyes burning with black flames were unyieldingly looking at the constantly forming black god thunder clouds. It had been defeated twice by it. If it hadn't had the bloodline of the immortal bird, it would have disappeared under this thunder tribulation.

However, even though it failed repeatedly, it still did not think of admitting defeat. It is the proud Jiuyou Bird. It has the bloodline of an immortal bird. It wants to become the most powerful divine beast in the world!

So, it must evolve successfully!

The Nine Nether Bird roared to the sky, and its huge wings swayed, challenging the Black God Thunder Tribulation again. This time, it will not fail again!

Rumble!

The constantly forming black god thunder tribulation seemed to have noticed the challenge of the Jiuyou Bird, and the black cloud suddenly began to wriggle, and a terrifying power of heaven and earth enveloped it.

The increasingly terrifying power of thunder gathered madly in the thunder clouds.

boom!

The thunder cloud was torn apart, and all the sounds between heaven and earth were frozen at this time. A huge black divine thunder directly carried the power of destruction and descended into the sky and slammed fiercely at the Jiuyou Bird.

Trepidation!

The nine netherworld sparrows roared, their huge wings vibrated, and the surging black flame swept out, turning into a black flame storm, colliding wildly with the black divine thunder.

Dong!

A loud noise resounded, and the thunder and black flames suddenly swept across, and the towering peaks around them were almost swept across the ground in an instant.

Mu Chen fell to the ground and looked at the shocking encounter in front of him with some fear. When he was in the Northern Spirit Realm, he had already seen a head-on encounter between the Jiuyou Bird and the Black God Thunder Tribulation. Now, both the Jiuyou Bird and the Black God Thunder Tribulation are obviously stronger than that time.

"This black god thunder tribulation seems to be able to change with the strength of the tribulation creature." Mu Chen thought about it, it is truly a crucial step on the road to evolution of spirit beasts. Under this black god thunder tribulation, there are countless powerful spirit beasts that have turned into annihilation.

In the first confrontation, Jiuyou Bird was not at a disadvantage, but Mu Chen knew that this was just the beginning...

Just as Mu Chen's thoughts passed through his heart, the black god thunder tribulation in the sky finally completely completed the gathering, the terrifying heavenly power spread, and then it began to reveal its hideousness.

Boom! Boom!

In the darkness of the sky and the earth, thunder tribulation squirmed, and huge black divine thunders descended down at this time, and all the divine thunders pointed directly at the Nine Nether Birds, extremely accurate.

The countless divine thunders descending reflected in the eyes of Jiuyou Bird, and the unyielding flames were filled with unyielding flames. Its wings suddenly swelled, and the power in its body was mobilized by it at this time.

Huh!

Black flames like a sea of ​​fire swept out and turned into tornadoes, tearing the sky and blasting at the divine thunders, trying to resist them all.

Two terrifying forces blasted against each other in the sky, and a huge ripples of force rippled. The space became distorted under the bombardment. Any leaked force was enough to razor the mountain range to the ground in an instant.

Mu Chen stood on the ground, staring at the crazy confrontation in the sky, holding his palms tightly, and his body tense. He could feel that with the frequency of the Black God Thunder Tribulation landing more and more rapidly, the defense of Jiuyou Bird also began to loosen.

Mu Chen's pupils suddenly shrank, and he saw a huge black divine thunder suddenly descending on the sky, directly breaking through the blockade of the Black Flame Storm and slashing hard on Jiuyou Bi's huge body.

Bang!

In the low dull sound, the huge body of Jiuyou Bird was shaken down thousands of feet. The place hit by lightning was even more black smoke rolling. Even if the black flames surged, it would not be able to recover the injuries there quickly.

The Jiuyou Bird let out a painful roar, and scarlet red seemed to surge out of his eyes.

Boom! Boom!

However, before the Jiuyou Bird got angry, the black god thunder tribulation entered a violent state. The thunder clouds contracted, and black god thunders landed wildly. At that moment, the world became trembling under the violent thunder tribulation.

The nine netherworld bird bent its wings and protected its body. The black flames surged, and the whole body turned into a black crystal layer. On the crystal layer, there was a black flame rising, which looked extremely solid.

Bang! Bang!

A series of divine thunders pierced through the heaven and earth, and finally hit the black crystal layer around Jiuyou Bird. Each divine thunder would break countless crystal layers, and Jiuyou Bird's body would tremble violently, obviously also suffered huge pain.

The rampage of the divine thunder lasted for a full few minutes, and the black crystal layers around the Jiuyou Bird were completely broken. The originally elegant and slender huge body was bombarded in an extremely embarrassing manner, and even blood was dripping along the feathers.

Mu Chen looked at the rather miserable appearance of Jiuyou Bird, and his palms couldn't help but hold it tightly. The black divine thunder tribulation was so strong that every black divine thunder was enough to knock a strong man from Tongtian Realm to the point of not even leaving a scum.

However, depending on this situation, if it continues, Jiuyou Bird may not be able to bear it.

Under Mu Chen's nervous gaze, in the sky, the embarrassed Jiuyou Bird still raised his head without caring about the heavy damage, and even if it was destroyed, it was unwilling to admit defeat to the Black God Thunder Tribulation.

"boom!"

The thunder tribulation was emotionally unpleasant, and the destructive divine thunder still ruthlessly blasted.

call out!

However, just as the divine thunder was about to fall on the body of Jiuyou Bird again, a slight rainbow suddenly shot out from its body. The rainbow floated above Jiuyou Bird, expanding and turning into an extremely huge feather.

The feathers are dark green in color, and endless streams of light are flowing over them. A feather stretches out, as if covering up the world.

The divine thunder bombarded the dark green feather, and the streaming light in the field was also shattered a lot, but it finally endured it and was not smashed away.

"What is that?" Mu Chen was also slightly shocked. The dark green feather was obviously not owned by Jiuyou Bird, but the power contained on it was extremely huge. He was hit by the divine thunder several times but failed to dissipate.

Seeing this, Jiuyou Bird was also stunned, but immediately recovered from his injuries. It knew that although the feather was powerful, it could only resist the divine thunder. It still had to rely on it to overcome this thunder tribulation by itself.

The Black God Thunder Tribulation was also angry because of this sudden object. It could feel that the feathers did not have the smell of the Nine Nether Bird, and it was particularly annoying to this foreign object.

Boom boom!

Therefore, the Black God Thunder Tribulation began to squirm, and the huge divine thunder continued to slash. Faced with the crazy angrily slash of the Black God Thunder Tribulation, the feather began to dim and eventually was completely blown to ashes by the divine thunder.

"Cry!"

Just as the feathers turned into ashes, the Jiuyou Bird roared to the sky, and the hot blood kept falling from its body, but its eyes were extremely bright.

In its clear sound, Mu Chen could see that a faint purple light suddenly flashed in the wounds on Jiuyou Bird's body, which seemed to be a wisp of extremely faint purple flame.

The purple flame was hidden in the black flame and was difficult to detect at all, but Mu Chen saw that with the appearance of the purple flame, the injuries on Jiuyou Bird's body were being quickly recovered, and even the power of the divine thunder at the wound could not be stopped.

"That's... Immortal Fire?!" Mu Chen stared at the tiny purple flame, but his pupils shrank slightly. Now he also knows quite well about Jiuyou Birds. Naturally, he knows that only the Immortal Fire that was born in the ancient Immortal Bird's body can ignore the damage of the thunder tribulation and repair the body. However, that Immortal Fire is exclusive to Immortal Birds. Although Jiuyou Bird has some Immortal Bird's bloodline, it is a bit thin after all, and it is not enough to awaken Immortal Fire...

But at present, an immortal fire appeared in the body of Jiuyou Bird, which shows that the blood of the immortal bird in its body is far beyond that of the ordinary Jiuyou Bird!

Mu Chen's eyes flashed slightly, and it seemed that the Nine Nether Birds should not be ordinary among their clans.

The injury was quickly recovered, and the unyielding flame burning in Jiuyouque's eyes became more and more intense. It looked up and looked at the beginning of shrinking little by little, but the destructive power in it was the increasingly terrifying Black God Thunder Tribulation.

It knew that the Black God Thunder Tribulation was brewing the strongest power, ready to erase it from this world!

However, facing the power that could destroy itself, Jiuyou Bird proudly raised his head, and his huge wings slowly swelled. A trace of extremely faint purple flames appeared in the overwhelming black flames.

"Cry!"

It made a clear sound, sending out a final challenge to the Black God Thunder Tribulation!

(Second update!

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Chapter completed!