World's Unparalleled Emperor

"Uh, I bet the faces of the people from the five Saints are very interesting!" Senior, you are right, all those years ago, you magical beast made a great contribution, but now, you are really holding your breath here. I also hope that you can return soon and let those few Saint realm experts have a whole new level of respect for you! "

What Mystic Beast Region Lord did not expect was that Zhang Nan would actually stand in their position and speak for them. This made her have an even better impression of Zhang Nan, as the humans in her heart had always been selfish.

What surprised Zhang Nan was that this mountain was extremely large, at least several times bigger than the other mountains. The cave was deep and dark, and it gave off a creepy feeling.

As he walked deeper in, the feeling became even more obvious, and after walking for less than half an hour, Zhang Nan had been pressured to the point that he was drenched in sweat. But Xue'er, who was walking behind him, seemed to be even more unable to endure it, and her face had actually turned slightly pale.

"Xue'er, if you can't take it, wait for us outside."

Zhang Nan thought for a while and said, to think that Yue Xue's cultivation was still a little too low.

"It's fine, I'm going to take a look and see what the Black Demon King looks like."

However, Xue'er was incomparably persistent, she who had never seen the Black Demon King before was obviously very curious, and was slowly releasing her mental power, forming an imposing manner that was not weak. Only then did Xue'er barely heave a breath of relief, but from the looks of it, she was also not feeling very well.

Seeing that Xue'er insisted on going, Zhang Nan did not object anymore. He believed that with the Mystic Beast Region Lord here, she would not see anything happen to the siblings.

As expected, she was an existence as strong as the Black Demon King. Walking at the front, she looked extremely relaxed, but the aura released by the Black Demon King did not seem to have any relation to him at all.

Another hour passed before a dark-red light appeared in front of them. At this moment, that enormous roar was at least several times louder than before.

Zhang Nan clenched his fists tightly. In his heart, he was filled with anticipation and nervousness, this was the legendary Black Demon King from the ancient times, and this ancient existence was the rarely seen Black Demon King, one of the few experts he had seen in the great battle. Yet today, he actually had the chance to see this Black Demon King's appearance.

Finally, Zhang Nan and Xue'er, who were behind him, unhesitatingly took a step forward.

Zhang Nan sucked in a cold breath of air. What appeared in front of him was a huge pool of lava, in the middle of which a huge black skeleton lay there like a huge giant, and it was actually thousands of meters tall. Its long black arm had sharp claws, and it looked like a sharp blade.

It was obvious that who knew how many experts had died under that sharp claw?

Two balls of flames jumped out of his two huge black pupils. They were blue in color, and looked strange and mysterious.

This was a heavily injured Black Demon King, its four limbs bound by four mother's iron chains, those iron chains were even stronger than trees, and it was unknown what material was used to make them, as they tightly trapped him.

Moreover, there were two steel chains that directly penetrated through his clavicles and tied him up.

Although the current Xue'er's eyes were filled with curiosity, her face had become even paler. She was being pressured by the Black Demon King's powerful aura, even though the other party was heavily injured and was still enduring the torture, the aura she emitted still made one's heart palpitate.

Zhang Nan took a closer look, and discovered that this Black Demon King was not entirely made of skeletons. There was even flesh on the bones, and this flesh was extremely thin, and it was pitch-black, as if it was no different from a skeleton.

Behind the Black Demon King, there was a tail that was several hundred meters long. However, the tail was also tied up by a chain, making it extremely difficult to move.

If that was all, wanting to seal such a powerful Black Demon King, would be underestimating the other party.

On the other side of the six gigantic chains, as well as the eighteen of them, there were three people guarding each chain. Each of them released an ancient seal, and then the Spirit Qi in their bodies mixed together and struck the chains in front of them, forming lines of light, which continued to spread along the chains, killing the Black Demon King.

All of them were saints of the Psionic Saint Realm Realm, and those standing at the very front were soon drenched in sweat. After that, they immediately retreated, and the other person immediately went forward to stop them!

"Class Three!"

This was something that Zhang Nan suddenly realized. This Black Demon King could not just kill them, he actually still needed to use Class 3 to slowly exhaust them, and he even needed 18 Saints!

Zhang Nan's expression was a little strange, it was no wonder that the Mystic Beast Region Lord was so angry. Not only did they have to stay here for so many years, they also had to spend eighteen saints to come here, and never stop working. As for the five great Saints, they were actually enjoying the outside world's best cultivation ground, as well as enjoying the best resources.

"Lord Domain Lord!" "What is this?"

He respectfully cupped his hands towards Mystic Beast Region Lord, feeling very strange in his heart, why did the Territory Lord, who always hated humans so much, bring two humans over today, and two were so weak at that. If he were to come and help out with a shift, the Spiritual Qi of the two of them would probably not be able to hold on for more than a minute.

"Great Clan Elder, you are finally free! All these years, you all have worked hard! "

Mystic Beast Region Lord's words were very calm, but Zhang Nan knew that there was a kind of guilt within, and he felt apologetic towards the elders who had been guarding this place for all these years.