Because they met giant ants, they became more cautious when they went deep inside. No one knows if there will be something more dangerous deep in this underground palace.

And Yun Hao is more careful. He says that there are wild animals here.

If everything is well inferred, it is obvious that there is also a door for alien creatures to pass through. For the earth, these alien creatures are invaders, which can threaten the security of the whole world.

In Yun Hao's heart, a kind of idea suddenly came into being.

Whether their cloud family, or guardian family, exists to protect the world and prevent foreign invaders from causing great damage to the earth.

But after a while, Yunhao gave up the idea.

The responsibility of safeguarding world security should be entrusted to such people as Altman iron man. In the final analysis, he is just an ordinary person with such powerful ability.

After a long distance, the narrow passage is coming to an end.

"There's light ahead!" Liu pangzi, who walked in the front, said.

Unlike in this passage, relying on the faint light emitted by the statue of the beast's head.

In front of the light, very bright, as if in the sunshine outside the general.

They can't help but quicken their pace, walking in such a dark and oppressive environment for such a long time, if they can see the light, it's also an exciting thing.

After walking more than ten meters forward, they finally came out of the passage.

What appeared in front of them was a wide square.

Looking at the square, it is about one square kilometer in size. The whole dome is semicircular, and the most central position is more than 30 meters tall. At the top, in the center of the square, is a stone pillar that goes straight to the dome.

At the top of the stone pillar is a huge crystal stone, and the light shining on the whole square is emitted from that crystal stone. In the small world of the underground palace, this stone is the sun that lights up everything!

From a distance, the stone pillar is three or five meters in diameter, with various strange patterns carved on it.

In addition, the whole square, are very empty, there is no existence of anything.

Looking at the stone pillar and the crystal on it, everyone was shocked.

What is such a huge and shining crystal? After they entered it, they began to shine, or they have been shining for a long time.

If it's the former, who controls the light? If it's the latter What kind of energy supply can make a stone shine for such a long time.

"What is this stone?"

They looked up at the stone pillar and walked towards it.

Only when they came down to the bright and magnificent light of the stone pillar did they feel more clearly.

After coming to this square, everything around can be seen clearly. In this semicircle shrouded square, there is no other passage, empty through this stone pillar.

Is Is this the only stone pillar in the underground world?

Xiao Xi doesn't believe it. Yun Hao also thinks it's not right. Maybe just like when he was on the surface just now, this stone pillar is just another secret door. They need to continue to find a way to open it.

Before Yun Hao made his decision, Xiao Xi and others had begun to study the stone pillar.

"Ordinary stone, not precious jade." Zhang Deyi took out a small hammer and said.

If there is such a big piece of jade, it will really set a new record for natural jade.

"What's the shining stone on it?" Liu pangzi pointed to the crystal on the stone pillar and said, "it can't be the night pearl. If it's true, it will make a fortune."

"Bullshit, have you ever seen such a big night pearl?" Zhang Deyi said, "go up and have a look."

Liu pangzi and Zhang Deyi took out their climbing tools and prepared to climb the stone column. They went up to the height of tens of meters to see what the crystal stone was.

But without waiting for the two of them to take action, Yun Hao grabbed them and said, "don't move. This is the secret door on the second floor. I'll open it. "

Everyone looks at Yunhao curiously. After coming here, Yunhao's performance is not surprising now.

Yunhao went to the bottom of the stone pillar and put his hand on it.

Sure enough, it was the same situation as when he touched the stone tablet on the ground, and a lot of noisy sounds and pictures appeared in Yun Hao's mind.

Yunhao's expression, produced a moment of trance, and the whole person also gently twitched.With the experience just now, no one comes forward to touch Yun Hao.

Looking at him returning to normal, Yun Hao sighed a long time. The memory of the stone pillar just now poured into his mind and let him see a lot of pictures.

At the beginning, the people who lived in seclusion here worked hard to build the underground palace together. All the people knelt around the stone pillars as if they were praying. After they rushed out of the underground palace, they never came back.

All these long-term memories have emerged in Yun Hao's memory.

Seeing these memory pictures, Yun Hao also knows how to open the underground palace on this floor.

This time, Shiyun didn't need the same thing to look at his chessboard.

This chessboard is carved on the ground. On it are some black and white chesspieces that are also carved out. It seems that the black is about to lose.

And cloud Hao just stretched out a hand, the hand point in the sunspot will lose that point position.

Yunhao's hand seemed to fall into the mechanism. The stone column suddenly vibrated, and it was spinning and shortening downward.

The stone pillars continue to shorten downward. In the end, the transparent crystal stone, which was more than 30 meters away from the ground, has been level with the ground. Liu pangzi and Zhang Deyi and others will not have to climb up for tens of meters if they want to know what the luminous stone is.

After the transparent crystal was level with the ground, it didn't stop. Instead, it continued to contract toward the ground, and soon disappeared in sight, leaving only a round pit with a diameter of more than three meters on the ground.

All the people gathered around the round pit and looked down. They only saw that there was another floor under the square!

Now, the transparent luminescent stone on the pillar has illuminated the next layer.

People looked at Xiang Yunhao, and someone was surprised and asked, "Yunhao, how do you know this organ?"