Because the cloud and mist essence just blocked this cave, Huo Hai didn't see the scene behind. The cave began to wind its way down from the ground, and there was no bottom in sight or what was inside the tunnel.

But when the cloud essence was taken out, Huo Hai suddenly found that this cave was actually spewing out clouds and mist in a steady stream. It is impossible for clouds and mist to be generated from underground, so the greatest possibility is that this underground cave is the true core of the entire natural spirit array. Ordinary clouds and fog are directly diffused and diffuse the surroundings.

And the essence of the real cloud and mist is condensed and gathered in this underground cave, and then gushes out. Eventually, these clouds and mist condensed at the entrance of the cave. I don't know how many years later, a piece of cloud essence was formed.

"It turns out that the real reason for the generation of cloud essence is this cave, I don't know if there is more cloud essence in the channel. Huo Hai thought about it and decided to go down and have a look. After all, the cloud essence is a very good supplement for Xiaoyun.

Jumping into the hole, Huo Hai walked down the hole like a spiral ladder. This was formed in the Cloud Mountain, so this cave is surrounded by stones, so there is no need to worry about the cave collapsing. Not long after walking, Huo Hai noticed the appearance of soil around him. At the same time, there are many small holes on the stone wall.

These holes are constantly emitting mist, and I think it should be the clouds and mist gathered by the spirit array that entered the hole through these small holes. It's a pity that in the cave, there is no cloud essence that Huo Hai saw before.

"Hey, that's it, really, there's nothing. Finally, after Huo Hai descended dozens of meters along the spiral ladder, he found that he had reached the real bottom, surrounded by clouds and mist, and even small clouds could not be completely controlled. In this kind of place, Huo Hai's surroundings are still smoky, and things are not so real.

The whole body emitted spiritual power, emitting a faint silver-white light, illuminating the inside of the cave. The walls around the cave are like a giant hornet's nest, full of various holes. And these clouds and mist are coming out of the hole.

It formed a perfect cycle with the clouds outside, and it was really a wonderful spiritual array. It's a pity that such a spirit array is really useless. Otherwise, this place is really a good place for the Array Spirit Master to observe and study.

Just as Huo Hai was about to leave, his hand suddenly touched something. This thing, not dirt, is like a piece of grass. But how can plants grow in such a place? "What is this thing. Huo Hai frowned. The exotic species that appear in strange places are naturally not idle. Huo Hai thought about it, but he didn't do it immediately.

The fluctuations of the spiritual power around the body suddenly became stronger, and the silver-white light became brighter. With the help of the brilliance emitted by the spiritual power, Huo Hai walked to the front and carefully observed the small grass. The grass is very peculiar, and the leaves are not a single piece.

Rather, it is a combination of a large number of fine fluffs, and the overall look is very wonderful. There are also faint clouds and mist around the surroundings, and there is no wind and automatic, which looks quite ethereal and weird.

In my mind, all kinds of information I have seen before are constantly flowing by. Huo Hai's eyes gradually began to shine. "Wash the fog grass, this is the fog washing grass. There's such a thing here. Huo Hai's eyes lit up, and he even shouted involuntarily. Fortunately, no one paid attention here, otherwise this sound would have attracted everyone around them.

What is the mist washing grass, Huo Hai had seen it in the book he bought before, this is a very special plant. Grows in perennial clouds and mist, or in a deep and dark environment underground.

This plant is very rare, but it is very valuable. There is only one ability of the Fog Washing Grass, and that is to refine its own impurities. This impurity does not refer to the impurity itself, but a substance left over after taking the pill.

No matter who it is, as long as they have taken the pill, they will leave a certain amount of impurities in the body. The difference is just how much, and these impurities can be expelled little by little with cultivation. But there is always one thing that is hidden deepest, and it can't be rejected. Instead, it is hidden in the body, and finally perfectly integrated with itself.

These impurities are usually not felt at all, so it can be said that there is no harm at all. But once it comes to breaking through the bottleneck, improving one's own strength, or even opening up some of one's own spiritual veins later, it will become an obstacle.

The more pills you have eaten before, the lower the quality of the pills you eat, and the more impurities there are. In the future, if you want to break through your own strength, the more difficult it will be to reach a higher level. Even if you have eaten too many pills, after reaching a certain level, it will be difficult to move an inch. At this time, the real effect of the fog washing grass is reflected, and it is specifically aimed at these impurities.

It can be eaten directly or refined into a special elixir. Each mist washing herb can wash away the impurities left by its own certain pills, and drive away the hidden dangers left by the use of pills.

Washing fog grass has never appeared in Nanyun Country. The more spirit masters there are, and the more masters gather, the higher the value of the Fog Washing Grass. It's a pity that this thing has always had a price, and no one wants to sell it at all.

Huo Hai is naturally the same, he won't sell such a precious thing casually. Since this is the case, then this cloud mountain will be preserved. Huo Hai made up his mind to hide the secret of Yunshan in his heart.

As long as Yun Shan can continue to help himself conceive the Washing Mist Grass, no matter how much time it is. In the future, even if they don't use it, at least when Yun'er and the others cultivate, it doesn't matter how many pills they use. I just don't know how long this fog washing grass has been gestation. If it takes too long, the value is much smaller.

"No matter, put it away first. Huo Hai cautiously looked around, and was relieved to see that he hadn't stepped on a single mist washing grass. Most of these fog washing plants grow in the crevices of the surrounding walls.

Chu Yuntian spent a long time completely searching the entire cave. This kind of cloud-filled and mist-filled environment is underground, and the production of fog washing grass is really enough. Mature mist washing grass, Huo Hai collected hundreds of them this time.

For a long time, I don't have to worry about the harm of the pill. "Yes, it's really good, it's such a big gain. I'll leave the rest here for now. Huo Hai thought about it and didn't put away all the fog washing grass.

Back at the entrance of the cave, Huo Hai arranged it a little outside. Use a few large rocks to block this place. The clouds and mist could still be emitted, but in the face of these stones glued together by special silver wires, it was difficult for spirit beasts to enter. Moreover, Huo Hai also deliberately arranged it here a little, even if someone mistakenly enters here in the future, he will not find that there are traces of man-made here.

The harvest this time is really great. Originally, I thought that there was no gain, and these fog washing plants were enough. From his cultivation to the present, Huo Hai has taken very few pills, so he doesn't need to refine himself for the time being.

What Huo Hai wanted most was for Yun'er to use. In order to break through as soon as possible, Yun'er used a large number of pills to cultivate. Even if it is because of hard work, the foundation is very solid, but the impurities left by the pill cannot be removed.

"Go back first, don't be in a hurry now, wait for a while, and then help them clean up their hidden dangers." "Calculating the time, I came to Yunwu Mountain, and more than a week has passed. I can't continue Lang to waste time. It's too late to leave Lu, and the people outside don't know what kind of worry they will become. Really, there are no mobile phones in this world, which is really inconvenient.

Huo Hai shook his head while breaking his thoughts, and at the same time, his feet were not slow at all. Following the road he had passed here, after judging the direction, Huo Hai began to walk out quickly under the protection of the Star Gu. This time, Huo Hai didn't want to spend any time at all, and he didn't stop when it was dark. With the help of spiritual power, he walked all the way outside.

Time passed slowly, and when Huo Hai noticed the dawn again, he finally approached the exit.

"It's been more than a week, why hasn't it come out yet, it can't be an accident. "Outside Yunshan, the captain walked back and forth. If you look closely, you will find that there are actually a lot fewer soldiers around Yunshan.

A little farther away, the airship that had been waiting for Huo Hai here also disappeared. But looking at their appearance, it doesn't seem that there was an accident, but that these people received some order and left here normally, "Captain, don't shake it, Young Master Huo's strength is so strong." Even if it's an exploding spar, it's not good for him, how could something happen. This cloud mountain is really too weird, there are so many clouds and mist, it is not easy to completely explore it. Next to him, the military advisor looked at the captain walking around and couldn't help but persuade.

The captain stopped, looking annoyed: "It's all my fault, I didn't insist on letting the adults stay outside." If you take two days off, you don't have to go in. Now there is still a need for probing. The captain's voice didn't weaken at all.

Huo Hai, who had just walked to the periphery, had already felt wrong when he saw the captain hanging outside. At this time, it was even more strange to hear the words of the captain. I don't need to probe for anything. In order to allow himself to explore the Jedi, Nanyun Kingdom didn't even get into the underground mercenary union. He even personally dealt with some of the people of the four major families.

Now that there is no need to investigate, Huo Hai doesn't know what Lu Dao is in his heart, and he has a faint premonition that it is not good.

Walking out quickly, before the person arrived, Huo Hai said loudly: "What happened, why are you all in such a hurry." As he spoke, he sent the small cloud that had been controlling the clouds into his inner space.