Two o'clock in the morning, at the foot of the west peak of Shuya Mountain.

Ren Zhong appeared here wearing an exoskeleton armor equipped with radiation protection outer armor, radiation detectors and other special exploration equipment, and carrying Wen Lei's giant shield with a soil-breaking auger drill attached to it.

The entire set of second-hand equipment cost him a full 20,000 points.

Coincidentally, it was the "scrap" that Wang Zhaofu obtained from Yu Junren in Chenhui Mining Area.

Turn on the positioning device and dig down.

Half an hour later, Ren Zhong went 500 meters underground and discovered something unusual.

The drill bit struck a piece of synthetic high-strength alloy.

If he hadn't reacted quickly, the drill bit would have been damaged.

After turning on the metal detection scanner, Ren Zhong saw a spherical three-dimensional model with a radius of 35 meters after thirty seconds.

After a simple analysis, he found that it was a damaged circular metal pipe with a diameter of 10 meters when it was intact.

Following the remains of the pipeline and searching diagonally upwards for about fifty meters, he found a huge cavity that had been damaged due to lack of maintenance and partially collapsed.

There are two mechanical platforms in the cavity, and on the platforms are two shield boring machines that have been chewed full of holes by beasts.

The appearance of this shield boring machine is similar to that of the rock boring machine, but it is larger and has a top diameter of almost ten meters.

It can load more people and objects, but its material is much worse than that of the rock boring machine.

It is an inferior imitation of the volcanic rock boring machine made by the humans of the Source Star.

Obviously, the main function of these two machines is transportation, not digging new mines, so they complement each other perfectly when used here.

Although the shield boring machine was damaged at this time, the overall structure was still intact.

Ren Zhong cut a larger hole at the entrance of the hole gnawed by the beast and jumped in.

Its interior space is crowded and cramped and divided into three sections.

The front section is the cockpit, and the middle section is the cargo compartment.

The structure of the latter part is very strange.

On both sides of a passage that allows people to walk upright, steel frames are arranged into a tight rectangular grid. Each grid is about 2 meters long, 0.4 meters wide, and 0.3 meters high.

Although it has been chewed up a lot, it has not collapsed yet. It looks like a shelf.

Ren Zhong gestured.

He knows the function of this "shelf".

This is not a shelf, but a "human rack".

People can lie in it side by side, and the maximum number of people can be packed into a small space.

People being transported will be huddled on the shelves, unable to turn over.

Ren Zhong temporarily shut down the internal air circulation system and smelled the external air with his nose. There was a putrid smell, but there was no corpse in sight.

He returned to the cockpit.

Scattered under the cockpit seats were three pieces of work clothes that had been chewed up, but the human shape could still be seen.

The work clothes were stained with blood, but there was no trace of flesh or blood.

Ren Zhong searched around the cavity for a while and found another small door.

From the small door, there is a passage that has collapsed and is inaccessible, and there are doors one after another on both sides of the passage.

Ren Zhong speculated that this should be a dormitory area with a similar structure to the centralized sleeping cabin. Unfortunately, the damage was so complete that it was impossible to enter.

Afterwards, Ren Zhong left the middle cavity and continued to explore down the damaged pipe for nearly 500 meters.

He finally discovered the complete pipe structure.

Obviously, after completing the excavation of exotic minerals, Yang Bingzhong did not use high-yield bombs to completely destroy the underground factory.

He just killed everyone quietly, used less violent methods of demolition, and destroyed the top passage.

It seems that Yang Bingzhong was afraid that the direct detonation would cause too much noise, so that even if nothing happened, it would cause trouble. It would be better to just destroy the underground entrance.

Anyway, the real entrance is nearly 500 meters underground. If no one deliberately comes here to look for it, the possibility of accidental exposure is extremely low.

There are also a lot of ruin beasts here. After the exotic ore is excavated, the radiation continues to decrease, and the activity area of ​​the underground ruin beasts will naturally expand downwards.

A few years later, "nature" will help him destroy his corpse and eliminate all traces, with only two or three inconspicuous mild earthquakes occurring at most.

By that time, all his goods had been sold, and his citizen level had already exceeded level five.

Even if some clues were discovered, there would only be some residual man-made metal at most.

No one could find conclusive evidence accusing him of privately digging for exotic minerals, and no one could do anything to him.

At this time, we have gone underground for nearly one kilometer, and the traces of the beast's activities have changed from more to less.

There are already faint readings in the radiation detector, but they are extremely weak.

Fifteen minutes later, Ren Zhong cut a hole through which he could pass through the thick alloy pipe wall.

When the hot-melt incision cools, he will crawl in.

The traditional radar in the scanner is finally free of obstructions and can look straight down.

An extra-long passage extending down to the ground, more than ten kilometers long, appeared in his armor information modeling.

After activating the anti-gravity engine and the magnetic modules of the foot armor, Ren Zhong began to sprint downwards perpendicular to the horizontal plane.

After about eight kilometers, he stopped.

A horizontal branch appears next to the circular passage.

Ren Zhong looked at the gradually rising radiation index and decided to turn around and enter the branch line.

Walking forward about three hundred meters along the horizontal branch line, Ren Zhong saw an elliptical cylinder nearly a hundred meters long.

The elliptical cylinder space was filled with a lot of small and medium-sized equipment that had been destroyed by humans.

Ren Zhong stepped forward to examine them one by one, and began to speculate on their functions in his mind.

In the 21st century, Dr. Ren's top thesis was in the field of biology, but his ability in the environmental protection field was also not bad.

The biggest characteristic of those who study environmental protection is that they are familiar with everything. They need to know a little bit about every industry, but they don’t have to be proficient in everything.

Thanks to his degree and academic ability in environmental engineering, he has visited various types of enterprises on the spot.

Among them was a steel-making plant. He knew what the equipment in an ordinary steel-making plant looked like.

First, he used the armor auxiliary brain to perform restoration calculations, and the "life" appearance of these destroyed equipment was roughly outlined. Ren Zhong first felt that they were familiar, then he clapped his hands fiercely and said to himself, "This is a steel mill!"

Although the specific principles of the equipment are definitely different from those on Earth, due to similar functions, they are somewhat similar in form.

Ren Zhong also found several nameplates on the equipment wreckage.

He accurately identified three types of equipment, namely electric furnaces, ladles, and mold casting equipment.

The functions are similar, and the overall shape looks similar, but due to differences in materials and energy supply methods, the size of the equipment is very different.

These devices are very small on earth and theoretically impossible to use.

But here, it's clear that they matter.

In addition, there are some special equipment that I don't know about, and they are probably used for purification.

In short, this is an ultra-small mineral refining workshop.

Yang Bingzhong's private mining project is indeed not only mining, but also includes small-scale rough processing.

Ren Zhong walked around the workshop and felt a little surprised.

He saw no bodies or human clothing.

Until he reached the end of the workshop, he found a door.

Pushing open the door, there is a hemispherical space with a diameter of about twenty meters in front of it.

A solid dome forms the upper part of the hemispheric space.

There is no alloy structure under the hemispheric space, it looks like black soil.

Ren Zhong jumped down.

His combat boots stepped on the ground, sinking a little deeper.

The ground looked soft and black water was seeping out.

A strong putrid odor began to fill his nostrils, and Ren Zhong silently closed the armor's external air circulation and switched to internal circulation.

Turning on the analyzer, Ren Zhong knew what these were.

Various incompletely burned broken braids.

He found the place where the body was dumped.

right here.

At least 100,000 people from Xinghuo Town are buried here.
To be continued...