"The mouth of the pulse is a spiritual eye of Dahe Ghost Vein."

"This great river ghost vein stretches for hundreds of thousands of miles throughout the endless sea, and it contains countless demonic and spiritual powers, but it is quite complicated."

"The demon kings jointly established the Hunyuan Palace to refine the ghost veins of the river everywhere and make them into Yao crystals. This object is more suitable for the demon clan to practice than the spirit stones. Fellow Taoists can exchange the treasures for the demon crystals."

I see.

Zhang Xiaohan nodded. The inheritance from his ancestors did mention that D demon power is extremely pure and concentrated, which means it can produce demon crystals.

This thing is extremely difficult to find in the outside world, because the outside world is already dominated by the human race and the demon race is weak, so even monster beasts are extremely difficult to find.

Not to mention being able to produce demon crystals.

It is said that in ancient times, some extremely powerful demons used demon crystals wherever they went. Just the demon power they exuded from their bodies could condense demon crystals.

In some ancient immortal battlefields and places where great demons fell, demon crystals may also be produced.

This demon crystal is extremely suitable for the demon clan to practice.

It is even better than the human spirit stones.

After all, spiritual stones need to be absorbed into the human body and converted into spiritual power, and in the same way, they can be converted into demonic power.

The demon crystal is pure. If it is absorbed without any impurities, it will be pure demon power.

Even if it is not used for cultivation, it can also be used for fighting or maintaining the demon formation. It can be said that it has many uses.

"Please take a look below. I will find you if necessary." Zhang Xiaohan said.

The shellfish man nodded, and then said: "Thank you, fellow Taoist, please feel free to do so."

Zhang Xiaohan went deep into Hunyuan Hall.

In the description just now.

Zhang Xiaohan felt a bit strange.

This Hunyuan Palace was only established a few hundred years ago.

Compared with the tens of millions of years of history of this secret realm, it seems almost in the blink of an eye.

Is it possible that every demon city was built based on the Hunyuan Palace?

After all, Hunyuan Palace was established based on the mouth of the pulse. Could it be that every demon city is just above the mouth of the pulse!

You must know that according to this description, the ghost veins of Dahe have extremely mottled demonic power.

How could it be possible to build a city with such mottled demonic power?

This is extremely detrimental to the practice of the demon clan.

This is only one possibility.

These demon cities were probably only established after the Hunyuan Palace was established.

In the Hunyuan Hall, there are all kinds of demon clans.

They redeemed Yao Jing at various windows.

And this is only the first level.

After taking a look, the Hunyuan Hall has seven floors.

The first level is to exchange demon crystals, which is also the largest level.

The second floor is the trading floor, where the demon crystals can be exchanged to purchase various items. It is also a store opened by Hunyuan Palace to rent to other demon clans.

On the third and fourth floors are the chiefs of Hunyuan Hall, who exchange medicinal materials and magical instruments respectively.

Zhang Xiaohan did not have permission to enter the fifth floor, and according to some inquiries, the fifth floor was the place where the Hunyuan Palace entertained distinguished guests, and was generally used to exchange large amounts of demon crystals.

If you don’t have the admission qualifications, you won’t be able to set foot there at all.

As for the sixth floor, it is where every palace master of Hunyuan Palace is located. At the same time, the palace master of Hunyuan Palace is also the city master of Demon City!

Zhang Xiaohan was shocked inside.

This really confirms what I just thought.

The Demon City is built on the Hunyuan Palace!

The Lord of Hunyuan Palace is the Lord of the City!

As for the seventh level, no one knows what it is.

Zhang Xiaohan has no need for demon crystals.

However, some magic weapons are extremely needed.

He gave the Seven-Star Sword to Yao Yun before, but after that he never had a sword that he could handle.

As for the sword soldiers on the fourth level, they also need to be exchanged for spiritual stones or demon crystals.

But Zhang Xiaohan didn't have any spiritual stones, so he had to exchange them for demon crystals.

Zhang Xiaohan came to a window. Opposite him was an octopus who was responsible for exchange matters. His strength was as high as the sixth level of the demon realm.

Zhang Xiaohan took out three pills.

"One second-grade soul painting pill and two first-grade thunder ghost pills." After the eight-clawed octopus got the three pills, Zhang Xiaohan was surprised to read out the names and grades of the three pills very skillfully.

"Fifty-three demon crystals."

Fifty-three demon crystals are roughly equivalent to fifty-three spirit stones.

However, for the demon clan, the value of spirit stones is still inferior to that of demon crystals.

In Wuyahai, fifty-three demon crystals are enough to compare with hundreds of spirit stones.

Well informed!

The monsters in each window are not simple.

But think about it, day after day, you are facing thousands of monsters to exchange for monster crystals. How can you do this job well if you don’t have the vision?

But fifty-three demon crystals are a lot.

The exchange for spiritual stones is at least one hundred yuan.

This is equivalent to the cargo on the back of a whale monster.

Zhang Xiaohan placed the space ring on the magic circle in the window, and soon fifty-three demon crystals were recorded.

"Do you have any more?" Octopus also knew a lot about people and the world. Seeing that Zhang Xiaohan showed no intention of leaving, he knew that he still had some elixirs with him.

Zhang Xiaohan nodded by default.

"Fifty-three demon crystals are already extraordinary in an ordinary first-floor window."

"If you can come up with hundreds of demon crystal pills, I can recommend you to enter the VIP room on the fifth floor."

Hundreds of dollars...

Zhang Xiaohan raised the corner of his mouth and took out a pill.

"Fifth-grade Black Crane Pill!" The eight-clawed octopus just glanced at it and then lost its voice. The eyes it looked at Zhang Xiaohan became respectful, as if it was seeing a treasure.

The fifth-grade Xuanhe Dan is made from the crown and feathers of King Wanhe, plus a series of heavenly materials and earthly treasures. Although the materials are quite simple compared to other fifth-grade elixirs, the difficulty of refining is as high as

Sixth grade elixir!

When it reaches the fifth level, it is called Xuanhe Dan. If you take it, your whole body's aura can temporarily transform into the form of the Wanhe King.

Possessing the demon king realm and the three sticks of incense in the form of the King of Ten Thousand Cranes.

Able to fight against ordinary first-level demon kings!

How could he not recognize this pill?

The round value... I'm afraid it's worth thousands of demon crystals!

It is equivalent to creating a strong person in the golden elixir realm! What is a thousand demon crystals?

Things like this are life-saving.

This was refined by Zhang Xiaohan in his spare time. It simply did not reach the sixth level, otherwise, it might attract Dan Lei.

It is also because he is now deep in the demon world, and this Xuanhe Dan has almost no effect in the human world. Even the strong golden elixir cannot withstand such a huge demon power, let alone the will of King Wanhe.

But for the demon clan, it has few disadvantages and can be called a life-saving magic weapon!

A demon king exists.

It is equivalent to being the leader of hundreds of separatist forces in the entire Wuya Sea.

If he could possess the first-level strength of a demon king for a short period of time, even ordinary demon kings would not be willing to provoke him easily!

"Is it enough to go up?" Zhang Xiaohan asked.

"Please please please."

The eight-clawed octopus quickly pressed the magic circle and said a few obscure demonic words.

Then there was a burst of noise among the monsters in Hunyuan Hall.
Chapter completed!