Demon Emperor City is located in the center of the tree god crown, and the complete magic refining method is engraved in the depths of Demon Emperor City.

According to Thousand Scales, the Demon Emperor City is guarded by the Shentu lineage, and the Demon Emperor City is also known as the City of Demon Sons, and there are many Demon Sons.

In the Demon Clan, the title of Demon Son has two meanings.

One is the son of the Demon Emperor, with a noble status, and he is the imperial bloodline in the Demon Clan.

The second is that the demon race is arrogant, gifted, and can appear in major races.

I thought that the inheritors of the Demon Emperor City must be the demon clan of the Shentu lineage, but after listening to the explanation of Thousand Scales, Xu Yan knew that all the demons in the Northern Continent Region had the opportunity to become the masters of the Demon Emperor City.

"The Demon Emperor has fallen for a thousand years, and the Demon Emperor City was occupied by the four of us when our four demon kings were still there, and I don't know if there is a new demon king in the North Continent in the past five hundred years, if there is no demon king, the people who occupy the Demon Emperor City should be some demon kings, and with the ability of the demon lord, you can't enter the Demon Flower Palace......"

I don't know whether it was intentional or unintentional, the demon king Thousand Scales casually said a lot of news that caused people to reverie.

"What kind of place is the Demon Flower Palace? Xu Yan sneered in his heart, knowing that it was the other party's introduction.

"It's nothing, it's just a relatively famous hall in the Demon Emperor City. ”

Demon Soul Thousand Scales' rhetoric is just as Xu Yan expected, this kind of statement can make people take the bait the most, in Thousand Scales' opinion, as long as Xu Yan always thinks about the mystery of the Demon Flower Palace, he will not easily do anything to him.

Xu Yan was indeed curious about the Demon Emperor City and the Demon Flower Palace, but what he was more curious about was not these two places, but the five hundred years of theory.

"It turns out that your four demon kings have already attacked the Daofu five hundred years ago, and they have been suppressed for five hundred years, so I'm afraid your body won't be able to bear it. ”

"We can't bear it, Qu Jiuge can't bear it, I can conclude that that guy's body is dead, just leave the Yuan Shen, and when his Yuan Shen power is also exhausted, the door of the Dao Mansion will be wide open, and then everyone in the world will know that the Dao Mansion is empty, and the Dao system is gone!"

"Cruel Demon King, Immortal Daofu...... With his own strength to resist the catastrophe of the common people, there are strong people in the Taoist government, and they are merciful and merciful. Xu Yan's tone became strange, and he said, "I forgot to tell Lord Thousand Scales that I am also a Taoist. ”

After that, Xu Yan withdrew the Yuan Shen, left the dragon egg, escaped from his left eye, and returned to his body.

"He is also a Taoist family? What is the origin of this Jiang Dachuan, not only the ontology is boundary, but also the black dragon, and he has also got the trapped dragon stone, is he related to the Tongtian Immortal Lord? Is he a descendant of Yan Tongtian, or the reincarnation of Yan Tongtian?"

After Xu Yan left, countless doubts appeared in the mind of the demon soul thousand scales.

Thousand Scales' doubts are destined to be unanswered, just like Xu Yan's doubts at this time.

"Five hundred years ago, five hundred years ago! The Four Great Demon Kings fought to the death with Qu Jiuge five hundred years ago, and Xuanyuan Night fought to the death with the Night's Watch five hundred years ago, could it be that five hundred years ago was another year of the fall of the sky?"

Many powerhouses of the Scattered Immortal Realm fell thousands of years ago, and many powerhouses of the Tribulation Realm fell five hundred years ago, this kind of coincidence in time made Xu Yan have to be confused.

If one year of skyfall can still be regarded as a coincidence, then two years of skyfall can only show that there is a shocking conspiracy behind the skyfall!

"Who can provoke the robbery monks and the scattered immortal powerhouses......?"

Taken aback by his own speculation, Xu Yan pondered for a long time, but he still had no clue.

"Maybe I'm too worried, Skyfall has nothing to do with me, or breaking through the realm as soon as possible is the key, if the Demon Emperor City is only in charge, I, the devil, may also have a chance to fight. ”

Thinking of dominating the demon clan and waving his army westward, Xu Yan felt very relieved.

Anyway, the Xizhou region is full of enemies, and they take the demons to kill them to take revenge, and they don't feel distressed if they die.

It is good to lead the demon army to fight with the enemy, and both sides will end up together, but it is not so simple to dominate the demon clan, at least with Xu Yan's current Yuanying realm, it is far from enough.

If you want to take away the demon army for your own use, you must not only have superb skills and earth-shattering courage, but also have enough strength.

Xu Yan is already at the peak of Yuanying, and breaking through the realm and transforming into a god has become a top priority.

After checking the pills on his body, Xu Yan had several pills just for the impact of the Yunshen Pill necessary for the transformation of the gods, but they were not his, but those left in the storage bags of the loot.

Not to mention the storage bags of Gong Boting Qiu Guchen Bao Xiaolou and Xiao Jiuquan, there are countless elixirs in just one Danhua's storage bag, how can there be less Yunshen Pill.

There are enough elixirs to break through the realm, and there is no shortage of spirit stones, but the location needs to be chosen.

After all, it is the territory of the demon race, although Xu Yan was mistaken for a demon, when he was really about to break through the realm, he was discovered by the demon lord's mother beast and discovered his human aura, which would be terrible.

Xu Yan didn't want to be surrounded by countless demons in his lair, so the best way was to choose another suitable location.

Before leaving, Xu Yan summoned the sword soul and ordered the night watchman to refine the second demonic qi on his body, these demonic qi are all good things, and the demonic qi with the power of the demon king's primordial god is extremely pure, and it is not an exaggeration to say that it is the hard work of a thousand scales.

It's just that these painstaking efforts of Thousand Scales are all turning into Xu Yan's things little by little, and they are being refined on the horn stone armor.

While the night watchman was refining the demonic qi, Xu Yan remembered another harvest on Linlang Island.

The Black Wind Flag.

As soon as his mind moved, the black wind flag stored in a big room was taken into Xu Yan's hand, and the flag was displayed in an uproar, like a black wind rolling in the air, and it was strange and extraordinary.

The Black Wind Banner is an authentic magic weapon, which anyone can perceive, but Xu Yan only found out after trying to urge the Black Wind Banner that this majestic banner is basically not powerful!

Frowning slightly, Xu Yan moved his sword eye, and through the flag, he could see a black flag looming.

The black wind around him was circling, the wind was whistling, Xu Yan was in the center of the black wind, carefully perceived it, shook his head and said: "The power of the inferior magic weapon can't be reached, what a weird best magic weapon, the power is too small, is the use of this black wind flag not against the enemy, but the black flag inside the seal?"

After a little hesitation, Xu Yan mobilized stronger spiritual power and urged the Black Wind Banner to the extreme.

For a while, the black wind was flying all over the sky, and the entire Qianji Mansion was completely shrouded in a black wind, and in the wind roaring, an unusual wisp of black gas gradually poured out from the flag.

As the power of the Black Wind Banner was fully activated, the prohibition hidden on the flag was finally touched, and once the prohibition was opened, Xu Yan's eyes immediately sank.

"Demonic energy!"

He recognized the black qi gushing out from the flag, it was the demon aura of the same origin as the wisp of demonic qi of Thousand Scales, and it was extremely pure.

Mobilizing spiritual power to wrap his right hand, Xu Yan became solemn, not only urging the world to strengthen the body, but also urging the demon horn on his forehead, and the demonic qi gushing out of the demon horn completely wrapped him.

Under the layers of protection, Xu Yantan grabbed the black banner in the black wind flag with his arm, and only heard a buzzing sound when his arm shook, and the black flag raised a corner from the flag, and the Qianji Mansion suddenly became pitch black.

The majestic demonic qi emanated from the black flag, and at the same time, the breath of the earth spirit treasure appeared in Xu Yan's hand, similar to the word black wind engraved on the flagpole of the black wind flag, and a few words were also engraved on the flagpole of the black flag.

"Dark Flag...... This is the Demon Clan's Earth Spirit Treasure!"

Xu Yan, who was exclaiming, was full of surprise in his eyes, he couldn't figure out why the Nine Infant Divine Fire Ding of the Heavenly Immortal Lord would hide the treasure of the demon clan.