The Wan Xie Yin Fu can transform the foul qi and spiritual qi into each other. The greatest use of this magical power is to remove the foul qi in the cultivator's body and soul.

Xuanming Tianzun knew that Gao Xian practiced the Blood River Tianzun method and inherited the Blood River flag. Gao Xian killed countless people, and no matter whether he was flying a big flag, he would inevitably accumulate a lot of foul energy.

Moreover, Gao Xian obviously had no intention of giving up the Blood River Method. It would not be long before the Six Paths of Demons descended, and it was inevitable that there would be more bloodshed and destruction.

In fact, high-level cultivators are most afraid of foul air. Once their body and soul are polluted by foul air, their cultivation will be completely destroyed at best, and their soul will be destroyed at worst.

If your body is contaminated with foul air, it will also attract evil spirits.

The Golden Book of Creation governs the spiritual energy of the world, except for the foul and evil spirits, which are not restricted by the Golden Book of Creation. Therefore, there is no limit to the power level of evil spirits.

No matter how powerful a cultivator is, he may attract powerful evil spirits of the corresponding level.

In addition, foul air can also induce powerful natural disasters.

Gao Xian understood what Xuanming Tianzun meant. Giving him the Wanxie Yin Fu was to let him go all out and do his work without worrying about his body and soul being polluted by foul air.

Based on this point alone, the Wanxie Yin Fu is a treasure.

After Sister Bai's explanation, Gao Xian realized that the Wanxie Yin Fu could actually transform evil spirits in various ways.

For ordinary practitioners, evil spirits are actually strong foul spirits. No practitioner likes evil spirits. Even if demons have some methods to control evil spirits, they themselves cannot withstand the invasion of evil spirits.

To Gao Xian, evil spirit has great value.

In order to enhance the power of Pojun Tiansha Sword, Gao Xian killed hundreds of millions of demons, and killed countless seventh-order demons in the Xuanhuang Underground Palace, only then was he able to upgrade Pojun Tiansha Sword to the perfection of a grandmaster.

When the Pojun Tiansha Sword is upgraded to a higher level, it will inevitably require a huge amount of evil energy.

Gao Xian also felt very embarrassed about this. How could there be so many demons to kill? Killing too many would eventually lead to all kinds of troubles.

The magical transformation of Wanxie Yinfu also solved a big problem.

The foul energy of the heavens and all worlds has accumulated over an era, and no one is competing with him for it, so it can be said that it is inexhaustible.

For example, the Yellow Spring Heavenly Prison he had been to had accumulated endless foul air. The eighth-level Tai Chi Yin-Yang Sword was contaminated by the foul air and was almost abandoned.

If such a strong foul air turns into evil spirit, it will turn waste into treasure! No, it will turn harm into treasure! The Wanxie Yin Fu is not restricted by the Golden Book of Creation, which means that no matter what level the Pojun Tiansha Sword is upgraded to, the Wanxie Yin Fu can adapt to it.

Xuanming Tianzun must not have noticed the changes in Pojun Tiansha Sword, which is why he gave the Wanxie Yinfu to him so easily!

Gao Xian was secretly glad when he thought of this: It seems that he really has a destiny! Such a treasure was delivered to him automatically.

Everything is ready, except for the Heavenly Evil Star Core! Gao Xian couldn't help but sigh: "The universe is so vast, I wonder where I can find the Heavenly Evil Star Core?"

Bai Yujing glanced at Gao Xian. This kid had asked her about the Tiansha Star Core several times, but he still refused to give up.

She thought for a moment and said, "With your close connection with the Heavenly Evil Star, you will be able to sense it once the Heavenly Evil Star Core appears in the human world. No one can hide such a divine object.

"If you really can't wait, go to Ruyitian and have a look."

"Where is Ruyitian?" Gao Xian had some knowledge, but this was the first time he heard of this place.

"Ruyitian is the center of the universe, controlled by the ninth-rank master Jin Ruyi. He was originally a weapon spirit, and because of his innate spirituality, he is particularly greedy for money and likes to trade.

"Since this era, Jin Ruyi has opened Ruyi Square in Ruyi Heaven for powerful people from all over the world to trade with. He is stingy and greedy for money, but he is the most fair and will never bully the weak and seize things by force."

"The Sky Evil Star Core is very special, and few people can use it. Only in a big market like Ruyifang can you trade it."

Gao Xian was delighted: "It's always good to try this kind of place."

"Jin Ruyi is a weapon spirit, he has no preference towards any race. But Ruyi Tian is a master of the Six Paths, and you may encounter an eighth-level strongman. If you encounter one, it will be a big trouble."

Bai Yujing said sternly: "In my opinion, you should concentrate on cultivating the Great Luo Hunyuan Yang God and accumulate strength to prepare for the Six Paths of Outer Demons."

"Senior, I wonder where is the suitable place to practice the Nine Blood River Techniques?" Gao Xian felt that what Bai Yujing said made sense. He calmed down and decided that the most urgent task was to let Taixuan Divine Phase condense the Divine Wheel first.

Only when all three Yang Gods have condensed their divine wheels and their magic power levels are balanced, can the Daluo Hunyuan Yang God be stable.

"Cultivators from all sides go to Yuan Jing Heaven to collect the Yuan Jing of Heaven and Earth. However, there are countless Yuan Jing creatures in this world. The pure spiritual energy of Yuan Jing Heaven naturally condenses into the Yuan Jing of Heaven and Earth, which also makes this world full of foul air.

"The Yuanjing creatures are polluted by foul qi from birth and are the most aggressive. They are close to evil spirits but have flesh and blood bodies and are born with the ability to fly. These creatures are endless and are the biggest trouble for all cultivators.

"Killing a living being is easy, but it will contaminate you with foul aura... just right for your cultivation."

Bai Yujing pointed at the Wanxie Yin Fu and said, "Xuanming gave you this thing because he wanted you to go to Yuanjingtian to practice the Nine Methods of the Blood River..."

"I see."

Gao Xian immediately understood that Xuanming was very thoughtful. He didn't even remind him. He must have guessed that he would ask Bai Yujing.

If Bai Yujing stayed in Xuanming Sect, what was the relationship between this elder sister and Xuanming? Bai Yujing didn't say such private things, and Gao Xian would not ask randomly no matter how curious he was. He still had a strong sense of boundaries! Finally, Gao Xian borrowed the dragon-seeking needle from Bai Yujing again.

Whether he went to Yuanjingtian to practice or to Ruyitian to try his luck, he had to go to Canglong Palace first.

Bai Yujing said that when he achieved great success in the seventh-level body refining technique, he would be able to re-enter the Hidden Dragon Palace.

Please...collect 6...9...books...!

There are still many ninth-level dragon consciousnesses in the Hidden Dragon Hall, which are enough to help him upgrade the Great Power Dragon Imperial Magic Seal. This secret method is also extremely important to him.

Bai Yujing generously lent the dragon-seeking needle, and only asked Gao Xian to give him a dragon consciousness as a reward.

After returning to the Shenxiao Sword Palace, Gao Xian hid his body and headed straight for the Canglong Cave.

The void restriction of Hidden Dragon Cave cannot be broken even by the ninth level cultivators. Although there are many cultivators and monsters exploring the periphery, they can't detect Gao Xian's existence at all.

With the dragon-seeking needle in hand, Gao Xian successfully entered the Dragon Hall in several months.

After two thousand years, Gao Xian came to the Hidden Dragon Hall again, and he felt completely different. When he first came, he was just a small god, and his level was too low.

With his current level of cultivation, he could see the details of various magical restrictions, and see the surging dragon energy in the Dragon Transformation Pond.

The ninth-rank heavenly dragon was dead, and even so, its body exuded an unparalleled powerful aura.

This might was also restricted by the countless laws of heaven and earth transformed by the Golden Book of Creation, and was firmly imprisoned in the Hidden Dragon Palace.

In other words, a wisp of immortal dragon soul in the Hidden Dragon Hall also possesses some ninth-level power, which even the Golden Book of Creation cannot completely suppress.

This shows how powerful the dead Tianlong was.

Gao Xian was also a little more cautious, and he entered the Dragon Transformation Pond again with familiarity. Compared to his embarrassment two thousand years ago, he was now very calm.

The seventh-level peak body refining technique, the unity of internal and external essence, allows Gao Xian to easily resist the erosion of the golden solution in the Dragon Pool.

After diving for a while, Gao Xian saw the huge and majestic body of the black dragon.

The dark golden dragon shadow in the depths of Gao Xian's left eye suddenly shone brightly, and a dragon roared...

Gao Xian realized something was wrong and hurriedly activated the Great Power Heavenly Dragon Seal, interrupting the naturally stimulated Heavenly Dragon Roar.

A ball of black-gold light rose from the huge black dragon below, and the unparalleled dragon soul power was rapidly gathering.

Seeing such a sudden change, even a strong man like Gao Xian felt his scalp tingling, but he did not dare to act rashly. The Hidden Dragon Palace would suppress all spatial changes, and he could not perform spatial transfer with his ability.

If he moves like this, he will die without a burial place...

(Update will be later tomorrow~) (End of this chapter)