Underground World, the fifth floor.

In the power sweeping wildly, Lu An and Fu Yu were moving in a tall tower building, looking for clues.

The fifth floor is very different from the first four floors. The ground of the first four floors is basically flush, like a plain, but the land on the fifth floor is like a surface landform, with high mountains and low valleys.

Lu An didn't know whether the tower was built in a mountain or a trough, nor did he know what the tower was used for, so the two of them had to analyze the equipment here, analyze the layout here, and analyze the power here to get the answer.

Of course, what is more important is to ensure your own safety.

Because of this, the two of them did not explore upwards, but went downwards. After all, in the crazy power, it is unknown whether the tower is stable or how long it can last. But if it is below, it may be able to penetrate deep into the ground, so that even if the tower is destroyed, it will be safer underground.

When descending from this high tower, Lu An found that the inner wall of the tower was very flat, and there was no obstruction from top to bottom, there was no wall, only the special instrument in the center. All branches in the instrument were very close to the inner wall of the tower, and I don’t know what it was used for. Lu An tried to analyze, and even used perception to analyze the internal structure, but he has not figured it out yet.

However, Lu An is very sure of one thing.

"This equipment has been destroyed." Lu An said.

Fu Yu took his hand back from the main trunk of the instrument, nodded slightly, and agreed with his husband's point of view.

Although this equipment looks very complete and flawless, there should actually be a special formation inside. If only this equipment itself is the one that will definitely not play a real role. The disappearance of the internal formation already means that the equipment is destroyed.

The tower is very high, and it is still about ten thousand feet from where the two are located to the end. When the two finally descended to the bottom of the tower, they found that there was a huge space here. The space was like a place to save power, but there was also a door in this space.

Lu An and Fu Yu immediately came to the door. Lu An raised his hand and tried to push it, but found that the door was still motionless.

There is no formation in the unit, so it is essentially turned on and off by a pure mechanism.

After all, if you want to be stable, the mechanism of pure matter formation must be much stronger than the formation.

Lu An searched around the door and quickly found the mechanism to open the door. After forcibly turning the mechanism continuously, the door was slowly opening.

Rumble...

The door opened, Lu An turned around and looked at his wife, saying, "Let's go."

After the two walked through the door, they found a straight corridor.

There is naturally no light in the corridor, and it is very dark here. Lu An released his fairy energy and illuminated it. The two of them are in the realm of the Heavenly Kings. No matter how long the corridor is, you can easily see the end at a glance.

At the end of the corridor is not another space, but a clear turn, and there is a corridor.

Lu An and Fu Yu quickly arrived at the end, and as expected. After entering the next corridor, there were corridors. These corridors were very straight and kept turning, and I don’t know when the end would be.

But no matter how many corridors are, there will be an end. Not long after, the two of them came to the real end, a door.

This door is not special, and it is even the same as the previous door on the machine. In other words, there is only an ordinary door here, in order to block something, not deliberately stop people.

Lu An opened the door again, and immediately, a vast space caught his eye!

It was dark here. Lu An raised his hand and a fairy ball with a diameter of hundreds of feet appeared, flew up above, suspended in the air, completely illuminating the place.

This space has a diameter of at least 100,000 feet and a height of about 30,000 feet, making it a very obvious flat space.

There is a very huge instrument in the space. The height of this instrument is 30,000 feet, almost as high as the sky

The diameter is 80,000 feet, leaving a certain amount of space.

But what's even more strange is the way this device looks.

This instrument has a main trunk, with a diameter of about 5,000 feet. Outside the main trunk is a curved plane extending outward, forming a special curved surface.

There are ten such surfaces, which occupy each direction of the main trunk on average. If this is the case, it would not be strange. What is really strange is that one of the surfaces is different from the other nine surfaces.

There is a special hole in the middle of this surface. This hole is very large and occupies at least 60% of the entire surface, but it is strange. .??.

Lu An looked up and saw that the main trunk was 30,000 feet, but the height of this space was a little higher than that of 30,000 feet. There was a part of the central area at the top of the space that extended downwards and connected to the main trunk.

And this part extending downwards is obviously a building inside.

Under the light of fairy energy, you can see that there is a door and many windows in this part. There is no need to investigate the equipment first, so naturally you have to investigate the building first, so the two of them flew straight to the center.

When he arrived at the building, Lu An found that the door was only locked by an ordinary machine. This means that he was not afraid of outsiders at all, but just needed a door to block the force outside from entering.

"This is a good place to observe the environment of the entire space through the window. Once there is a problem, you can immediately discover and repair it immediately."

Lu An nodded because after the two walked into the building, they could indeed see the entire space and the entire equipment through the window.

However, Lu An believes that what is important is not the equipment, but whether there are any intelligence clues left here.

The most important thing is to know more about the information here. What is the purpose of the fifth underground world? Is the formation that the two strange beasts once said?

Also, where is the Black Mist Man?

Since entering the fifth floor, Lu An has always wanted to find the Black Mist Man. After all, if he could find the Black Mist Man, the other party would see him.

With my current strength, I will likely tell myself a lot of information.

But he had no idea where the Black Mist Man was. He and his wife had been washed too far. He had no idea where the underground formation he had been before was, and he was not even sure of the direction.

After reviewing the building, I found no books, not even a piece of paper.

Just when Lu An didn't know what to do next, Fu Yu said, "Can you try to mobilize this machine?"

Lu An was stunned. Activate this device?

Lu An looked embarrassed and said, "But I don't know the formation here."

"There is no need to fully start, you just need to make the equipment here move." Fu Yu said, "Didn't your husband say there are Black Mist people here? We need to let him know that we are here. As long as the equipment moves, the other party may be able to sense it and come to us."

Lu An suddenly realized that this was indeed a good idea.

"Then I'll try!"

Lu An immediately studied the equipment and kept flying back and forth between inside and outside.

Lu An is indeed very knowledgeable about hexagrams, formations and equipment. Especially as his own strength becomes stronger and his understanding of rules becomes deeper, his understanding of equipment and formations becomes deeper.

Especially if Lu An does not have the strength to this day, he will not even be able to understand the core of this device.

After a while, Lu An gradually realized that if he wanted to mobilize this equipment, ordinary power could not be achieved at all. If he wanted to mobilize this equipment, he had to have special power!

For example...the power of a person with a strange eye!

About an hour later, Lu An basically figured out how to use the equipment in this huge space.

"I'll give it a try." Lu An said.
Chapter completed!