I will return you 10,000 times my money. I am the strongest furnace in the Demon Sect.

"Are you coming? Is it over yet?"

One wave after another, Xing Ziyue almost collapsed.

"Anyway, there is no way to retreat, so we can only go and take a look." Zhao Mu said calmly.

They have all survived being surrounded by 10,000 monsters. No matter how many difficulties and obstacles lie ahead, they still have to push through.

Niu Yulan, however, hurriedly handed the Xuanyang Red Gold Fruit to Zhao Mu.

Zhao Mu took a look at the system and found that the number of returns had not been refreshed, so he accepted the Xuanyang Red Gold Fruit first and then thought of a way to give it to Niu Yulan when the time was up.

The three of them regrouped, cheered up, and headed towards the newly emerged road.

After walking through a winding tunnel, the space in front suddenly became turbid, filled with a brown-gray mist.

"Be careful, this is the filthy air. It was this filthy air that swept across the earth back then, eroding countless creatures and turning them into monsters that only knew how to kill."

Xing Ziyue reminded hurriedly.

Zhao Mu did not dare to be careless. The power of the red sun quickly took effect. His body was like a small sun, emitting scorching heat. He used the heat wave as a shield wall to suppress the filthy air around him, making it impossible for the filthy air to get close. It will be evaporated by the blazing high temperature and the strong Yang Qi.

Zhao Mu, who was full of pure Yang, seemed to have a natural restraint effect on this evil and filthy air.

Xing Ziyue and Niu Yulan walked beside Zhao Mu, feeling full of security.

It was just a little bit hot, and my clothes were soaked with sweat and felt sticky against my skin, making me a little uncomfortable.

Passing through the filthy atmosphere, Zhao Mu and the others reached the end of the road and came to a new cave.

This cave is different from the previous ones. It was obviously dug manually. The surrounding rock walls are as smooth as a knife. The material is also the ultra-hard ore that Zhao Mu has encountered before. The entire cave is in a regular square shape and is large enough to accommodate a mountain peak.

The filthy air can be seen everywhere in the cave. The filthy air is the strongest in the central area, but the color is not right. It is not brown-gray, but pale.

From the looks of it, there doesn't seem to be a strong sense of filthiness.

"It's a bit strange. The filthy air seems to be far worse than what is described in the book. Could it be that it has gradually lost its effectiveness because of its age?"

Xing Ziyue muttered.

Zhao Mu also felt that the filthy atmosphere was a bit unappreciable, so he continued forward and came to the center of the cave.

Looking closely, Zhao Mu found that the filthy air here seemed to be attracted by some kind of core. A large amount of fog condensed into a ball with extremely high concentration. There was even liquid dripping from underneath the thick fog, forming a pale lake on the ground.

The pale lake water is completely filled with liquefied filth, but instead of feeling evil, it feels very pure.

Zhao Mu suddenly thought of something.

He left a pure Yang power to envelope Niu Yulan and Xing Ziyue, then flew his sword back to the previous cave and searched everywhere.

After a while, Zhao Mu really found a fish that slipped through the net.

It's a living monster.

Zhao Mu mentioned the magical beast, flew to the side of the pale lake, and threw the magical beast directly into the pale lake.

Seeing this situation, Xing Ziyue immediately realized what Zhao Mu was thinking.

He must have suspected that the magical beast he met in the ancient city before regained its memory here.

After the monster was thrown into the pale lake, it immediately struggled violently and rolled over.

Zhao Mu frowned and stood on the shore to carefully observe the changes in the monster.

An amazing scene happened.

I saw that the black mud body on the monster's body was being dissolved little by little by the pale lake water.

After a while, normal human skin was exposed inside.

A complete human female body slowly emerged from the water.

She slowly opened her eyes, and the dark light in her eyes was quickly dissipating, and she soon returned to normal eyes.

"I...where is this?"

Zhao Mu pulled the woman ashore with a wave of his hand, covered her with a cloak, and said, "What is your name and where are you from?"

The woman looked at Zhao Mu and the others with a dull expression. After thinking for a long time, she said, "My name is... Zhao Qiuyun. I am the daughter of the lord of Handan City. I remember that I was leading the guards to resist the evil spirits from the Forest of Ten Thousand Demons. I... ...dead?"

Handan City!

as expected.

The key is that her surname is Zhao, which means she may be an ancestor of Zhao Mu.

"Tell you good news and bad news. The good news is that you are not dead, and the bad news is that it is already eight thousand years later."

"Eight thousand years..."

Zhao Qiuyun was shocked.

She was just a mortal without any cultivation. Eight thousand years was too long for her, too long to be real.

Xing Ziyue didn't care about Zhao Qiuyun's affairs. He looked at the pale lake and drooled from the corners of his eyes.

Although I don’t know what happened, I can be sure that this lake is definitely a treasure.

If she had obtained such a lake eight thousand years ago during the invasion of filth, she would have immediately become a great hero who saved people from suffering and was respected by all people.

Even though the power of pollution has subsided now, the lake water here is still of amazing value for studying the source of pollution.

And this is a trump card. One day in the future, the power of filth will spread again. With this treasure, filth will not be a concern.

If you hand over the lake water here to the sect, you can definitely exchange it for a large amount of merit awards.

"Let's collect these lake water quickly."

Xing Ziyue said impatiently.

Zhao Mu knew her idea, but collecting lake water is indeed a good idea.

The value of this thing is beyond doubt.

But Zhao Mu still has some doubts.

Why did this filthy air turn into treasure after eight thousand years?

The filthy breath in the past could corrode all living things, but now the filthy breath has become a panacea for salvation.

What happened during this period to purify the filth?

This lake water is indeed precious.

But the secret hidden in the lake may be more valuable.

Zhao Mu said: "You stay here and take good care of Zhao Qiuyun. I will dive to the bottom of the lake to investigate."

After that, Zhao Mu jumped into the pale lake.

The pale lake water instantly soaked Zhao Mu's whole body.

This lake water did not have any effect on him, but it hindered Zhao Mu's spiritual perception. In addition, the lake water was completely opaque, and he quickly lost his way in it. He could only swim to the center of the lake little by little by feeling.

The lake was not big. After a while, Zhao Mu swam to the center of the lake and then sank to the bottom of the lake.

It was surprisingly deep.

Zhao Mu sank two or three hundred meters before his feet touched the bottom of the lake.

After groping along the bottom of the lake, Zhao Mu found many small stones scattered on the bottom of the lake. They were regular circles and contained spiritual fluctuations. They should be what Zhao Mu was looking for.

Zhao Mu collected a total of 23 round stones of different sizes. After groping for a long time without any harvest, he floated to the surface.

He couldn't wait to check his harvest.