This was the third floor of the Heavenly Nine-Story Tower, and in this abandoned 'Evil Ghost City', Lin Yunpan sat by this portal to the fourth floor.

After a long time, he opened his eyes, shook his palm, and unconsciously, absorbing the monster energy of these three layers, he was already about to break through to the middle stage of the first-level martial sect.

And through the battle with the evil ghosts, horses, and beasts, he also clearly realized his current strength, and without using the Flood Demon God, the Demon God Crystal Nucleus, and the Demon Sword, he could only fight with the first-level Martial Emperor at most.

He didn't know what the fourth-tier monster lord would be, but if it continued and so on, it would definitely be a second-level Martial Emperor monster lord.

Unlike the state sublimation of Ye Bugui and Mo Yun and others, this will be a genuine second-level Martial Emperor Demon Beast, and it will become even more difficult to deal with.

Lin Yun stood up and stepped into the portal to the fourth layer without hesitation.

Following this portal, it was like traveling through the world, and there was a white mist in front of you.

Gradually, the white mist gradually disappeared, and everything was truly revealed.

The eerie world of demons is gone, and in its place, a world of white and black is in front of you.

What appeared in front of Lin Yun was the world of the fourth layer, the Yin and Yang World.

A distinct dividing line emerges from the ground, dividing the whole world, and to the left of the dividing line is pitch black, as if in ink; On the right side of the dividing line, it was white, as if snow covered the whole world.

The whole world is full of bright light, and as soon as people enter here, they have an inexplicable sense of excitement.

Lin Yun felt that this world was filled with a different kind of aura, even if his divine sense emanated, he could only catch the aura of a creature in the distance, which was the demon beast of the second-level Martial Emperor realm.

Lin Yun frowned slightly, whether it was the first, second, or third layer of the world, even if there were some demon beasts that could conceal their own aura, Lin Yun could still capture the aura of some other demon beasts.

But in this yin and yang world, Lin Yun couldn't capture the breath of any demon beast, except for this lord demon beast.

This also means that in this yin and yang world, there is only such a lord demon beast, and there are no other demon beasts.

"Wouldn't that be able to absorb energy?" This was the problem that Lin Yun was annoyed by, originally thinking that if there were many demon beasts on each layer, these demon beasts could make his realm improve rapidly.

And now, it seems, that idea is shattered.

At this time, Lin Yun, who was thinking, suddenly sighed lightly and raised his head.

Immediately after, in the blink of an eye, a huge black shadow flew over Lin Yun's head and disappeared.

"It's it!" Lin Yun exclaimed, his divine sense had already captured it, this huge black shadow was a second-level Martial Emperor Lord Demon Beast, but Lin Yun had already disappeared without even seeing it clearly.

The most terrifying thing is that when Lin Yun stepped into this world just now, what he sensed was far away.

"It's a little weird." Lin Yun directly summoned the Demon God Sword Martial Soul, as well as the Demon Sword, and in an instant, a huge aura erupted from his body.

He closed his eyes and sensed the aura of this lord demon beast again, and when he opened his eyes, he turned into a gust of wind and ran away.

After a long time, Lin Yun almost crossed the entire Yin and Yang world, and came to the portal to the fifth layer.

At this time, the entire Yin and Yang World suddenly shook, and immediately after, a roar of an ancient demonic beast like a flood of wilderness sounded from the ground.

Lin Yun's face changed, and suddenly a thunderous explosion exploded from the dividing line of the Yin and Yang world, and the entire world was split in two.

At the same time, the dividing line cracked a huge crack in darkness.

The lord demon beast of the fourth layer, at this moment, has awakened.

Lin Yun stepped sideways into the black world, and frowned when he saw the monster lord in the dark rift clearly.

In the crack, nine huge snake heads poked out, and in an instant, they came to the ground.

"Nine Yin Yang Snakes......" Lin Yun muttered quietly, he didn't expect this creature to really survive in this world.

The Nine Yin Yang Snakes are the legendary demon beasts that existed in the Flood Era, Lin Yun had never seen this demon beast in his previous life, and he didn't expect to see it in the Nine Layers of the Imperial Palace.

It is rumored that the nine Yin Yang Snakes are the births of the Divine Domain and the Demon Domain, possessing the abilities of Yin and Yang.

Each of the nine serpent heads has opposing elemental powers: fire, water, wind, rain, thunder, lightning, wood, and ice.

This nine-headed yin-yang snake raised its nine snake heads and stared at Lin Yun.

Lin Yun felt a feeling of suffocation rising from his back, but he didn't show weakness, took a step forward, and put the demon sword in front of him.

This nine-headed yin-yang snake surpassed ten meters, and Lin Yun was as small as a little mouse in front of him, as if he could crush Lin Yun at any time.

But it seems to understand that it is not easy for a human to be able to pass through the three-story hall and come to its own territory, and it is not taken lightly.

This nine-headed yin-yang snake suddenly raised a snake head, and then slapped it violently.

Lin Yun subconsciously wanted to avoid his snake head, but found that his body couldn't move at all.

"Imprison the power!" Lin Yun saw the largest snake head in the middle of the nine Yin Yang Snakes, which was emitting a faint light at the moment, it should be the imprisoning power in the control skill, which could imprison the surrounding immortal qi, so that the cultivator could not move.

Lin Yun immediately mobilized the Demon God's Sword Martial Soul, and when all the spells were blessed on the Demon Sword, it was already too late.

Lin Yun saw that the head of the snake was less than a foot away from him, so he raised his sword and put it on his chest, and let out an angry roar from his mouth.

With a 'sonorous' sound of the snake's head and the demonic ancient sword intersecting like metal, Lin Yun's body tumbled out like a kite with a broken string, and the nine yin and yang snakes shook slightly, not even taking half a step back.

Lin Yun's whole body smashed to the ground, but he quickly stood up and gasped.

I saw that his right arm trembled slightly, and the tiger's mouth was shattered.

Lin Yun unleashed the repair ability of the True Dragon Bloodline, and quickly repaired the wound.

"World Destroying God Sword Duel - Fourth Style!"

As soon as Lin Yun made a move, it was the Moon-Slashing Blade, and a crescent-shaped sword qi slammed into the head of one of the nine Yin Yang Snakes, such a large body, there was no need to aim at the target at all.

But to Lin Yun's surprise, this sword qi only left a shallow scar on the heads of the nine Yin Yang Snakes......