Thinking of this, Lin Yi felt a chill down his spine and rushed directly to Tianling Gai.

He felt that if these people had not become extinct, they might be able to conquer the world now.

"Let's go, we still have business to do, so hurry up."

Under Lin Yi's order, the remaining ten people quickly moved forward.

But soon, they discovered something different.

Murals appeared on the walls, and all kinds of strange things came into view.

Another creature with three heads and six arms.

There are humans kneeling on one knee.

There are blazing torches.

There are also the sun and moon shining in all directions.

All kinds of strange portraits left everyone scratching their heads.

But everyone has a consensus in their hearts that this may be a sacrificial record of the indigenous people of Tilia Island, but what it is exactly is still unknown.

"Boss, look at this thing."

Luo Qi knelt down and picked up a mahjong-sized stone.

"This thing is quite heavy, it seems to be metal."

Lin Yi took it in his hand, took the Defense Master's dagger, and knocked on it, making a tinkling sound.

"It seems to be an alloy, but it's hard to say exactly what it is." Lin Yi said:

"But what is certain is that it should be something left by the indigenous people on the island."

Everyone nodded, agreeing with Lin Yi's point of view.

No one has ever set foot in the tunnel in front of us, so it is impossible to leave anything from the human world behind.

"Could it be the same material as the statue?"

"It's very possible. Will there be any reaction when I hold it in my hand?"

Lu Yu put the metal outside his pocket, "Take that thing back and we'll find out."

Everyone nodded and continued on their way.

But in Lu Yu's mind, he no longer had any minor guesses about the piece of metal.

When I was a doctor, the system punished me by giving me a set of alloy scalpels.

Although the inner shape is exactly the same as that of an abnormal scalpel, the material is extremely different.

I even tested it privately to see if I could find that kind of material under the earth.

Therefore, the piece of alloy I picked up could not be the material of a scalpel.

Phew~

Lu Yu exhaled inwardly.

"It is indeed a place full of secrets. From now on, it is up to you to take over its mysterious veil."

Everyone is paying attention to the facilities outside the secret passage.

Although the things under the mural are very mysterious, with our current ability, we can find out.

He simply put all those things aside and ran towards the end of the secret passage.

According to the map, the entire length of the secret passage is about ten kilometers away.

The internal construction is extremely neat.

If it were specifically stated that it was a modern infrastructure project, there would be no sense of violation.

If you say long is long, it is long, if you say short it is short.

For Lu Yu and others, it was just drizzle, and it came to an end in about half an hour.

But at the end, there is not a brick wall, but a pile of red soil.

"That thing, I really think it looks like special soil." Zhao Yunhu said.

Lu Yu leaned over, picked up some and rubbed it under his hands, then put it behind his nose and smelled it.

"It should be a soil rich in iron and aluminum oxides." Wei Xiang said:

"That kind of thing is relatively common in cold rainforests, but if it doesn't contain other substances, it has to be taken back for testing."

"If it is something that often appears in cold rainforests, it is consistent with the landform conditions of Kandaya Forest." Xiao Bing said.

"That's right." Lin Yi said:

"You have traveled almost all over Kandaya Forest in these young years, but have you ever seen anything like that?

"Ever seen it?"

Everyone looked at each other in shock, and that answer once again gave Tilia Island a mysterious color.

"No matter what, now is the time to discuss those things." Lu Yu said:

"Let's dig, otherwise we will go out."

Following Lu Yu's order, everyone took action.

That time, Lu Yu was very unsure.

Although the system is a bit messy, the quality of what is given every time is guaranteed.

As long as you dig out the red soil behind your eyes, you will definitely be able to get out.

A group of people are very motivated, including eight men.

Looking at the young people working hard, Lin Yi felt that the execution ability of one group seemed to be weaker than that of the Yanlong Brigade.

Consciously, Lin Yi looked at Wei Xiang again, and then remembered what happened to the Wang family in the next few days.

To a certain extent, my control over a group seems to have exceeded that of the central defender brigade itself.

One group moved very slowly and moved the red soil behind them very slowly.

At that time, everyone discovered that the brick wall of the tunnel had disappeared, and behind it was a solid red earth wall.

Lu Yu looked up and said:

"Dig down, dig through the ground, and we can get out."

A group of people continue to work, like tireless excavators.

After digging for a while, Lu Yu and Wei Xiang saw that the red soil disappeared and turned into unusually white soil.

"It turns out to be a layer of red soil." Lin Yi said, "Why do you think I've seen it before?"

"But that's the strange thing." Wei Xiang said:

"Exceptionally speaking, it is unusual for red soil to appear outside the cold rainforest, but now it is buried on the feet. Although it can be explained, it still feels weird."

Lin Yi nodded and agreed with Wei Xiang's point of view and said:

"We have dug to the white soil layer, and the depth is at least one meter. A conservative estimate is that we will have to dig two to eight meters at most before we can get back to the ground."

"We were so optimistic. When we came up from the entrance, we only dug about two meters before retreating into the secret passage. From there, we had to dig up to seven meters at most." Lu Yu said:

"The most important thing is that we did not find a layer of red soil at the entrance. Just ten kilometers away, such a small change in the landform is possible."

Originally, Lin Yi didn't pay attention to that matter, but when Lu Yu said it, he suddenly felt strange.

"Your final thought is that the landform may have changed due to changes in the earth's crust. But if that's the case, there should be red soil at the entrance. That is completely consistent with changes in the earth's crust."

"The question is whether there are such large-scale crustal changes." Lu Yu said with a smile:

"Given the scale of Tihue, if the earth's crust really changed, the island would have sunk long ago."

"Yes, yes, he thought wrong." Wei Xiang complained:

"Looking at what you said, you will know whether the information from overseas is good or not."

"Um...also recorded that aspect?"

"According to data records, there have been many crustal changes under that sea area, ranging from small to large." Wei Xiang said:

"According to experts' estimates and deductions, there may have been dozens of small and large islands in the surrounding area during history. They were first lost due to crustal movement, but Tilia Island is still strong, just like taking medicine.

It seems like nothing is wrong."
Chapter completed!