The old man was dressed in a purple robe, and his white hair without a crown of hair fell naturally like a waterfall.

The eyes are warm and bright, and the elegant posture of a fairy wind and bones is like an immortal coming to the world.

The black dragon looked up at the immortal in the purple robe in the air, his eyes glowing with gloom.

"Zixiao, you despicable villain, you are finally willing to come today? more than 500 years, you really make the deity wait!"

Zixiao Zhenren hung in the air, looked down at the black dragon, and said coldly: "You evil beast is so bold. ”

"You promised that this seat will no longer eat people, and this seat will spare your life, you want to eat people again today, it is really demonic and difficult to change, and it is difficult to get rid of murder!"

The black dragon snorted, and said with disdain: "Zixiao, what kind of thing are you, and you dare to teach the deity?"

"More than 500 years ago, if the deity hadn't fallen for your plot, how could the deity be sealed here by you!"

Zixiao Zhenren's face suddenly showed an angry expression: "You evil beast, more than five hundred years ago, this seat thought that there was a good life in heaven, so I left you alive." ”

"I didn't expect that five hundred years later, you are still so stubborn, and I can't keep you!"

"What nonsense, since you're here, let the deity settle the grievances and grievances of five hundred years ago with you!"

As the black dragon's words fell, a crimson glow bloomed in the terrifying giant eyes.

In an instant, the heavens and the earth saw the thunder rolling, and the entire underground world was violently windy, and the anger was great.

Lin Ziyu's small body was blown up by the strong wind, and he saw that his head was about to hit the rock wall hard.

Zixiao Zhenren's face changed, his figure flashed, and he took Lin Ziyu into his arms.

Zixiao Zhenren's right hand condensed the sword finger and lightly touched Lin Ziyu's forehead,

In the next second, Lin Ziyu found that he could actually stand out of thin air, and his body was also wrapped in a purple enchantment.

Lin Ziyu's heart moved, yo, this old man named Zixiao still has something!

"Kid, hide quickly!" Zixiao said.

With a grip of his right hand into the void, a long sword shining with purple thunder appeared out of thin air in his hand.

Lin Ziyu nodded subconsciously and glanced at the cave where the black dragon was originally hiding.

As soon as his body moved, his body flew directly to the mouth of the cave and stood firmly on the ground.

The purple enchantment protected Lin Ziyu tightly in it, not affected by the wind at all.

"Zixiao, you are so hypocritical!" the black dragon snorted contemptuously.

Suddenly opened the mouth of the blood basin, only to hear a dragon roar, and the red blood was in full bloom.

A flame containing a ferocious power erupted from the black dragon's mouth and shot towards Zixiao Zhenren.

The flames streaked through the void, and the surroundings suddenly heated up, and the underground world was illuminated by the light of the fire.

Lin Ziyu was protected by Zixiao Zhenren's enchantment, and he was stunned for a while!

"Damn, this is really a fairy fight! ”

Looking at the violent flames shooting out, Zixiao Zhenren took out the sword technique, and the thunder sword he was holding was shocked.

With a flick, a thunderbolt blade containing the same fury burst through the air, slicing through the air.

"Boom!"

The blade of the thunderbolt and the furious flames slammed together in the void.

A powerful storm of energy swept out from the place of collision, blowing like a blade at the rock wall.

The rock wall was like tofu, and a few pieces were cut off in an instant, and the rubble was flying in the wind.

After looking at himself without being hurt in the slightest, Lin Ziyu said in his heart:

If there was Zixiao Zhenren's enchantment protector, I am afraid that his body would have been torn to pieces by the energy storm and turned into a pool of blood.

When the energy storm dissipated, the black dragon snorted coldly, his eyes full of hatred.

"I haven't seen it for more than five hundred years, Zixiao, your cultivation is getting stronger and stronger, and the Heavenly Thunder Technique can be used as you like, but my Emperor Dragon is not idle!"

As soon as the words fell, the black dragon's whole body began to burn violently, as if it was about to burn itself.

"Drink!"

The black dragon let out a low shout, and the red flames that enveloped his body suddenly turned into an eerie black.

"I can't imagine that you, an evil beast, have cultivated the Flood Desolation Divine Fire, Hell Black Flame!"

Looking at the black flames that burned the chains engraved with strange runes, Zixiao Zhenren's eyes were a little more solemn when they were neutral, and his face was full of solemnity.

"Break—"

The black dragon let out a loud shout, and the iron chain that locked the four legs was shattered into pieces, splashing everywhere.

A mouthful of black flame erupted, shooting towards eight stone pillars engraved with strange yellow runes.

Eight stone pillars burned to ashes in an instant.

Lin Ziyu, who was protected by the enchantment, didn't want to blink his eyes for a moment, he just wanted to watch the terrifying battle in front of him.

In a pair of deep eyes, there was a certain longing, a strange fanaticism.

Seeing that the black dragon had destroyed the dragon binding seal in an instant, Zixiao Zhenren's face changed again.

"It's not good, this evil beast has already broken free from the seal of the dragon binding array, if he doesn't take advantage of the fact that his strength has not fully recovered, except for it, then this land of Shenzhou will inevitably usher in another bloody storm. ”

When the words fell, Zixiao Zhenren's left hand quickly pinched out a few sword duels, drew a Taiji ring under his feet, pointed the long sword in his hand to the sky, and read in his mouth:

"Dongyang Zhengshen, Thunder and Lightning True Venerable, ascend to heaven and split the earth, help me with divine power!"

In a moment, the clouds in the night sky were boiling and boiling, thunder roared, and the wind was stronger.

There is also a constant flicker of electric light.

There was an extremely strong aura of slaughter between heaven and earth.

In the blink of an eye, in the clouds, thunder and lightning exploded.

"Boom—"

It hit the earth of the world directly, and landed on the long sword of Zixiao Zhenren that was already glowing with thunder.

This explosion thundered Lin Ziyu, who was secretly watching the battle on the side, and his ears were buzzing.

Zi Xiao's real body was entangled in thunder and lightning, and the purple Dao's robe was also blown high by the wind.

I saw that his eyes were wide open, as if they were about to burst, and purple thunder flashed in his eyes.

The whole underground world, at this moment, under the light of the thunder, was as bright as day.

The purple lightning that bloomed on the tip of Zixiao's real sword was extremely gorgeous, like flower petals blooming.

Lin Ziyu held his breath and was stunned.

With this kind of power, he was sure that if he had been in contact with the Dao, he would definitely end up with a miserable death.

In the eyes of the black dragon who had broken free from the seal of the dragon, a strange and crazy color also appeared.

"Zixiao, I can't imagine that you have cultivated the Heavenly Thunder Technique to the ninth layer, you are worthy of being a peerless genius in the land of Shenzhou, which is rare to see in a thousand years!"

Looking at the increasingly powerful thunder and lightning power condensed on Zixiao's real human sword, the black dragon let out an almost crazy dragon rage.

"Roar!"

The hellish black flames that shrouded the whole body gathered in the void in front of the black dragon's mouth.

At this moment, the Hell Black Flame that contained terrifying power seemed to have life under the control of the black dragon.

It was constantly expanding and jumping, and it kept making a high-pitched wailing sound, like a black dragon wailing.

"Thunder Heavenly Punishment!"

Zixiao Zhenren shouted.

With all his strength, he flicked his wrist, and the purple thunder on the long sword let out a bird-like scream.

When the purple thunder mang was condensed to the extreme, he left the sword and attacked the black dragon.

The furious purple thunder condensed on the sword shot towards the black dragon, and where the purple thunder passed, the void was distorted, making a sound like glass.

The black dragon was not afraid at all, and the infernal black flame in his mouth swelled several times, forming a huge fireball.

"Raging Hellfire. ”

The black dragon let out a low shout, and the huge fireball bombarded the purple thunder that shot out.

"Bang!"

Two extreme terrifying energies collided, and a violent explosion was immediately produced.

The underworld began to crumble, and all kinds of rubble continued to fall.

At the moment when the two terrifying energies collided, Lin Ziyu, who was wrapped in the enchantment, only felt his heart beat violently.

The blood in the whole body seemed to flow backwards in an instant, and the whole person was extremely painful.

Suddenly, Lin Ziyu felt that his hands and feet were weak, and he had no strength at all, and he collapsed directly on the ground.

In the next moment, the wind stopped!

In the entire underground world, there was no sound except for the sound of gravel falling to the ground.

At this moment, Lin Ziyu's ears had no other sound except for tinnitus.

There wasn't even the sound of rocks falling to the ground.

I only vaguely saw what kind of conversation Zixiao Zhenren and the black dragon were having ......

Lin Ziyu slumped weakly on the ground, endured the stinging sensation caused by tinnitus, and quietly saw a man and a beast, engaged in this unprecedentedly fierce silent battle.

I saw Zixiao Zhenren holding the white long sword in his hand across his chest, and the tip of the sword was aimed at the black dragon.

The fingers of the sword were condensed in both hands, forming a figure-eight shape at the hilt of the suspended long sword.

Seeing what Zixiao Zhenren was singing on his lips, his body turned into a purple gas, and flew directly into the white long sword, fusing into one.

The color of the white long sword was thunderous in an instant, and thunder and lightning continued to shoot out in all directions, slashing on the rock wall.

The black dragon was not far behind, opening its mouth and mouthing bloody, and seemed to let out an angry roar.

The entire body was also a black long sword burning with raging black flames, and the resentment was awe-inspiring.

Then, the black long sword and the white long sword possessed by Zixiao Zhenren fought together.

Two long swords, one black and one white, were entangled in the air where the rocks kept falling.

After a few rounds of fighting, the black sword fell as if it was exhausted.

After a few more rounds of wrestling with the white sword, the black sword finally couldn't hold it anymore.

The black flame dispersed with the wind in an instant, turning into nothingness, and there was nothing under him.

"Boom!"

The black sword degenerated into a black dragon and fell heavily to the ground, smashing into a deep pit.

The black dragon's huge body was dripping with blood, and he was panting heavily between his mouth and nose.

The winning white long sword turned around, and the tip of the sword was fiercely aimed at the heart of the black dragon, and it fell wildly.

At this moment, a small fiery red fox came out of nowhere.

Protecting the black dragon, he grinned at the white sword that fell wildly.

I saw the little fiery red fox leap forward, and met the white long sword that fell wildly.