These four words, each nearly five or six zhang high, are engraved high on the top of the city gate, invisibly exuding a reckless momentum, making people feel a little dizzy and confused just by looking at it, Rao is Gao Yun has enough confidence in his own mental will, and he does not dare to look at these words for a long time.

"The word on this ......"

The gray-clothed old man said: "The four fonts on this plaque are written by the second city lord of this Fire Cloud Dragon City, which contains the most original power of the fire aura, and ordinary cultivators will have a vague will as long as they look at it, even if you have the power of the demon dragon." ”

"How can it be done like this......" Gao Yun was secretly frightened, the second city lord of this Fire Cloud Dragon City did not say which clan of the Demon Dragon Clan he was from, but he didn't know what kind of strength such a person should be.

"Let's go, let's go into town. The gray-clothed old man said, and the gray phantom slowly floated forward.

The place where they fell, although it was not far from the city gate, but the actual distance was still several miles long, walking on this avenue that led straight to Huoyun Dragon City, Gao Yun found that it was hundreds of zhang wide, and along the way, there were also many cultivators on the road, but they were all wearing fiery red clothes, compared to them, Gao Yun's black clothes were extremely conspicuous among them.

Secretly looked at the cultivation of several cultivators he met along the way, but Gao Yun was secretly surprised.

They are basically in the middle and late stages of the Heavenly Netherworld or even the peak of cultivation, and occasionally there are a few late stage of the Earth Netherworld, but it seems that most of them are less than twenty years old, according to this growth trend, the age at which they break through the Heavenly Netherworld is probably not much bigger.

"Report your identity!" When Gao Yun walked to the gate of Huoyun Dragon City, a soldier wearing red armor stopped Gao Yun, he was wearing an inappropriate black shirt, which naturally attracted the attention of the soldiers guarding the city gate.

At this time, the gray-clothed old man floated up to the soldier and said, "I am the guardian of the Netherworld of the Rahu clan, and he is the trialist recommended this time, named Gao Yun. ”

"Rahu?" The soldier guarding the city gate showed a thoughtful expression, took out the roster and flipped through it, and immediately said in amazement: "It seems that the Rahu clan has not sent a trialist to Huoyun Dragon City for nearly ten thousand years!"

"Yes!" replied to the gray-clothed old man, and then, a simple red spirit tablet appeared out of thin air in front of it, with the pattern of a black demon dragon engraved on it, and on the back of the red spirit card, two black ancient characters were written - Rahu.

The soldiers at the city gate glanced at Gao Yun with strange eyes, took the red spirit card and looked at it, nodded and said, "It is indeed the Rahu clan, since this is the case, then you can go in." ”

Gao Yun followed behind the gray-clothed old man and stepped into the Fire Cloud Dragon City, and the moment he officially stepped into the city, Gao Yun only felt a huge coercion enveloping him, which made his body protection aura suddenly weakened by nearly thirty percent.

Looking up, Gao Yun saw that in the sky of this city, there were countless red flowing clouds churning and surging, constantly arranging and combining, forming various mysterious patterns, which seemed to contain endless mysteries.

"The fire aura here...... It's so rich!" Gao Yun opened his mouth and took a deep breath, he felt that what he was inhaling was not air, but the purest and most primordial fire-based aura!

This kind of fire-based aura may not be described as rich, but it should be said that they are the origin power that is closest to the origin power of the natural fire system!

"If you absorb this kind of aura cultivation in this kind of place, I'm afraid it's not enough to describe it with half the effort......" Gao Yun sighed in his heart, it seems that the cultivation resources of the Demon Dragon Clan are far beyond his imagination, even if he just meditates and cultivates here, I am afraid that the efficiency is more than ten times higher than that in the highest cultivation tower in the Imperial City, this magical region is really too big compared to the Six Realms!

In this Fire Cloud Dragon City, you can receive the baptism of pure fire aura at all times, making the aura in your body even more pure! If it is supplemented by cultivation and comprehension of the power of the flame origin, it is needless to say.

Especially the cultivators here also have a powerful bloodline power of the Demon Dragon Clan, and their comprehension of the power of the origin of the fire system is very high, if they are placed in the Six Realms, I am afraid that all of them are cultivation geniuses!

"Let's go, I'll take you to meet the deacon elders of the Trial Hall, and he will guide you to start the trial of the fourth layer of the Demon Dragon Technique. ”

Gao Yun followed the gray-clothed old man towards the trial hall, and along the way, he met many young men and women dressed in red, and they picked out one of them at random, all of them were the strength of the late stage of the Heavenly Netherworld.

"Are all of these people from the Demon Dragon Clan?" Gao Yun asked.

"It's not all ......," the gray-clothed old man shook his head, "Most of these people are just like you, they are recommended Nether cultivators from similar Netherworlds, and only a very small number are from the Demon Dragon Clan. ”

"The Demon Dragon Clan itself has dozens of clans, but its ability to reproduce is extremely low, so it will send guardians in various nether realms to recruit outstanding talents from all over the world to join, and the reason why you can participate in the trial

, that's the case. ”

Hearing the old man in gray say this, Gao Yun suddenly realized in his heart, so it was!

As an existence close to a god, the Demon Dragon Clan may be restricted by some natural rules, so it cannot reproduce in large quantities, and like the ordinary races in the Six Realms, the ability to reproduce is extremely terrifying, a powerhouse in the Heavenly Netherworld with a lifespan of thousands of years, it is not too many to give birth to dozens of children in his life, and then the children continue to reproduce, so that the total number of races will increase in the form of geometric scales. This may be the restriction of the laws of nature in order to counterbalance the races.

"In this way, the Treasure Hall of the Imperial City is the only one of the Demon Dragon Clan's talents?" Gao Yun had never understood why there was such an anti-heaven place as the Treasure Hall in the Imperial City, but now he understood that all the treasure scrolls in the Treasure Hall were all from the Demon Dragon Clan.

"That's right! Actually, the founder of your Imperial City, speaking of which, there are some connections from my Rahu clan......" The old man in gray didn't say anything more when he said this, as if he didn't want to say more, Gao Yun didn't ask any more, he faintly felt that the sudden rise of the Imperial City was mostly related to the origin implied by the old man in gray's words.

"Here, this is the Great Hall of Trials, Gao Yun, I will wait for you here, as the first trialist of the Rahu clan in the past 10,000 years, I hope you can achieve the desired harvest......"

The gray-clothed old man finally stopped next to a red building dozens of feet high, and on the dome of the building, there was a huge statue of a magic dragon, which was twisted and swirled, as if it was alive.

"Thank you, sir. ”

Gao Yun took a deep breath and walked into the fiery red trial hall, in the empty corridor, because it was too quiet, he could clearly hear the echo of his steps.

In the Great Hall of Trials, Gao Yun saw more than a dozen red-clothed cultivators waiting in the main hall, most of them were humans, and a few were strange races that Gao Yun had not seen, but Gao Yun probed slightly and found that they all had one thing in common, that is, they all had traces of the demon dragon essence blood in their bodies more or less, and the power of this demon dragon bloodline was obviously much stronger than that in his body.

"Hey, you're new here?" Gao Yun walked into the main hall, and a red-clothed cultivator enthusiastically took the initiative to greet him, "Which clan are you from?"

The cultivator who opened his mouth was an ordinary-looking human being, and he looked very honest.

"The Imperial City, Gao Yun. Gao Yun didn't have the slightest intention of concealing it, and reported it directly to the door.

"Youyou Imperial City, sure enough, you are also in the Nether Realm, and so am I, haha, I am Zhao Lin from Yuehuo City. As soon as he heard that Gao Yun was also from the Netherworld, a sense of intimacy suddenly swelled up in his tone.

Gao Yun immediately discovered that on the chest of Zhao Lin's clothes, there was a circular mark embroidered with the words "Yue Huo" written on it, and around the handwriting, there was a circle of flames that seemed to be burning.

Most of the cultivators standing in the hall had the mark on their chests that showed their sect, and in the center of the hall, he saw that there were more than a dozen cultivators, who looked a little different from the others around them.

Gao Yun couldn't help but ask, "Those people in the middle, what sect are they from?"