Global Famine: My items can be automatically upgraded.

There are many tunnels from the old times around this high ground.

Typical old country style.

Once a war breaks out, the speed of tunnel digging is astonishing.

Especially in the geographical location close to the north, wherever there is a mountain, there must be a cave.

And the tunnels here are even worse.

According to Shen Bei's estimation, the preparation for war between humans and deep space forces was already planned long ago.

That’s why there are the current complicated tunnels.

The tunnel before Shen Bei was incredibly wide, with numerous forks and intersections, stretching in all directions like a spider web. Anyone without a map would be lost in this dark underground maze.

However, not every intersection in the tunnels in this area has traces of human footsteps.

It is more of a shortcut chosen by the staff of Shelter No. 8 to pass quickly.

Shen Bei's body seemed to melt into the thick darkness. He landed silently on the ground, and with a light tap of his toes, his slender figure moved sideways for more than ten meters, like a ghost.

This was his first time sneaking into a tunnel.

A silence.

After all, almost all the personnel in Shelter No. 8 who were able to fight had already arrived at the front line of the confrontation through the tunnel.

Therefore, no one can be seen entering or leaving the tunnel.

But there were traces of tank tracks on the ground. These heavy main battle tanks did not use rubber tracks, leaving permanent marks on the rocky ground. Shen Bei carefully examined the traces and determined that this should be the main road of the tunnel.

He walked in the opposite direction along the marks, and walked about five kilometers underground, but still could not see the end of the tunnel.

If the distances to other forks in the road are included, the minimum length would be dozens of kilometers. Such a huge amount of work, and the fact that it hasn't collapsed yet, really surprised Shen Bei. Even in developed countries in the old days, it would take several years to excavate it.

After an unknown amount of time in the darkness, Shen Bei suddenly leaped up, lightly landing on the top of the tunnel. He clung to the cold stone wall with his hands. His armor began to change color, and his figure slowly merged with the stone wall.

Several beams of light suddenly lit up in the dark tunnel, and a patrol team of five cavalrymen riding biochemical velociraptors passed by.

Since the battle broke out, Shelter 36 had not only opened up more routes to support the front lines, but also increased its vigilance. Patrols composed of bio-raptor cavalry would form groups every half hour to check for any personnel from Shelter who might have intruded into the tunnels.

The beam of light from the flashlight jumped over Shen Bei's body. The cavalrymen were unaware and soon disappeared at the end of the tunnel.

Shen Bei exhaled slowly, leaped down from the top of the tunnel, and landed lightly on the ground. He could kill all these cavalrymen before they sounded the alarm, but that would only bring about a greater threat.

After Xiao K recovered his energy, he sensed an extremely weak mental force hidden in the air, and the source of these mental force waves was underground.

Shen Bei read Xiao K's information and became more cautious.

In order to avoid unnecessary trouble, Shen Bei did not control Xiao K to use his own mental waves to investigate the source.

Although these mental waves are weak, they spread throughout the entire underground tunnel system, which is extremely terrifying.

With such a huge coverage area, the information contained in the mental waves reflected back to the main body is terrifying.

Even a super computer has a limit to the amount of information it can classify and process per unit time, let alone humans.

Even for a psychic above level ten, when processing such a huge amount of information, the heat released by the brain's work will instantly evaporate the brain.

The source should be the first terrifying individual, an existence that he cannot match or control now.

Fortunately, the direction he was heading did not coincide with the source of the mental waves, otherwise he would have hesitated whether to go deeper.

Such a hasty intrusion into such a realm of existence can be called suicide.

As the invasion deepened, Shen Bei discovered that some of the huge hollows at the forks in the road had become the nests of some ferocious creatures. All kinds of powerful and terrifying creatures hid underground.