"Man-made caves?"

The words of the team members instantly aroused the interest of the fourth Taifu Asama and two other experts in the tent.

"Yes, you should go and check it out, it's not far from the camp."

The three of them stepped up under the leadership of the team members and came to the front of the entrance of the cave, and next to the cave, there were already several other team members who were already standing and looking inside.

As the team described, it was an unusually large black cavern, even higher than the top of the tallest building in the entire Snow Country, and the entrance of the cave looked like a small animal stepping into the mouth of the abyss.

Generally, there may be a large space for the naturally formed cave ** part of the mountain, but the external cave entrance is irregular and narrow because of the mountain extrusion, and the cave entrance of this cave is an approximately circular hole, and it is very huge, and it is unlikely to be naturally formed from common sense.

"It's an unexpected discovery."

While the main purpose of the expedition was to find suitable sites for the installation of geothermal generators, it was also the task of the expedition to the north to explore unknown areas in the snow country that no one had ever visited.

And this unusually huge cave is certainly the most worth spending time exploring compared to the entire snow-capped field.

Asama immediately organized six people, including himself, two geologists, and three exploration team members, to march into the black cavern, and the rest stayed in the camp.

Entering through the entrance of the temple-like cavern, there is a long, narrow limestone tunnel, which is no more than a person high in width, but the depth of the longitudinal slope extends beyond the eye.

Walking in the dark tunnel, the sound of the wind howling behind him was reduced a lot, and the fourth wife of Asama felt a sense of peace of mind.

Because outside the black mountain range, Asama Shitai could always hear that discordant "whirring" sound, which made Asama Shitai feel indescribable fear like a demon's whisper in his ear.

The glow of the flashlight shone on the stone walls of the cavern, and suddenly the light disconnected, shooting into a large black space in front of it.

The crowd hurried a few steps into the open space.

It's a cave so huge that even the light of a flashlight doesn't reach the end, and it's full of stalactites and stalagmites, the product of long-term etching by a trickle.

"This is..."

A geologist crouched down and groped the ground at his feet.

At the foot of the team, the ground is filled with small fossils of various marine creatures such as polyps, sea urchins, conchs, and petrified sponges.

This is the first time in the history of this expedition and even the entire Snow Country that fossils of marine life have been discovered!

Seeing this scene, everyone's cognition was broken.

Originally, it was thought that the land of snow had always been a land covered in snow and ice, but judging from the geological formations and fossils in this cave, it was once blessed with water countless years ago.

And it has enough water to form an ocean!

The two geologists immediately made a brief survey of the surroundings and then came to a unified conclusion.

"The age of this cave is at least 50 million years old."

This made everyone take a deep breath, no wonder this cave contains fossils of sea creatures, it turns out that this cave existed even before the emergence of human civilization.

The group stayed for a moment and then continued to move forward, and after about a few tens of meters, everyone exclaimed uncontrollably.

Illuminated by the glow of the flashlight, the rock wall in front of them was covered with carapaces and skeletons.

Most of these strange fossil remains are the bones of prehistoric animals, and it is no longer possible to see them alive, and it is a privilege to even see them here.

Extending the flashlight inward, Asama saw that there were countless animal fossils in the depths of the cave, including Archaeopteryx, ancient sharks, ichthyosaurs, plesiosaurs, and other animals that can only be seen in textbooks.

Asama Shitsuo and the others had excited smiles on their faces.

For explorers, the astonishing discovery here is no less than the discovery of a cave full of treasures, and even these highly researched fossil samples are more valuable than gold and silver treasures.

Everyone looked around, observing everything around them with curiosity like countrymen who had strayed into a new world.

Since they didn't expect these amazing discoveries, they didn't bring professional tools for cutting fossils, and their movements were limited to observing with their eyes.

Under the reminder of the fourth wife of Asama, the group finally regained their minds and continued to move deeper into the cave.

Sure enough, after continuing to go deeper for dozens of meters, the group made a new discovery.

On a relatively open ground, the remains of huge shellfish and vertebrates stand like a hill.

There are eight small piles of animal bones, and they are clearly not naturally piled up, and they can only be piled together by deliberate behavior.

Here, it's like a table top left behind after some kind of creature feast!

Asama walked over to one of the piles of bones and picked up a random piece of bone from it, and found that the cross-section of the bone was very clean and clean, with obvious cuts.

Looking at the ribs and skulls scattered next to it, they are also neatly cut off and disassembled.

"This is..."

The geologists and team members next to him also found this dizzying sense of dissonance.

This one comes from a cave 50 million years ago, an era before humans were born, why do these animal bones have traces of processing with tools?

And what kind of creature has such an astonishing appetite for these mountains of animal bones?

The six of them carefully searched for other clues that might have been left behind one by one, and the erosion of time had eaten away the heretical smell that might remain on these bones, so a few people would not cause any discomfort when they rummaged through them.

Suddenly, Asama saw a shiny fragment buried under the animal's bones.

Mr. Asama quickly rescued the fragment from the animal skeleton and took it in his hand to observe it carefully.

It's a green, bizarre pentagonal shape with a slightly worn tip, and its warm and delicate feel proves that it should be made of talc-like material.

Seeing the green luster fragment in Asama's hand, the others hurriedly came over to watch.

Everyone was shocked and speechless the moment they saw this green pentagon.

The pentagonal shape is a much more advanced shape than a circle and a square, and it is a shape that is difficult to naturally generate in nature, and it is difficult for non-intelligent life forms to understand this shape.

And the creatures that can draw this pentagonal shape and make it so regular are likely to indicate that they have advanced intelligence similar to that of humans.

Suddenly, a gloomy wind blew from the depths of the cave.

The stench of decay invaded everyone's nostrils.

Everyone temporarily withdrew their curiosity about the pentagonal fragments, as they believed that for this cave, a deeper investigation was necessary.