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What do you mean many years ago?

Heinrich had too many doubts about Lin Xu, but they were all pressed into his chest one by one at this moment.

He found that Lin Xu's voice was low but had a sense of dangling, and Lin Xu himself had endless questions that he wanted to find the answer to.

Because the air circulation inside the tunnel could not be confirmed, the two put on oxygen masks and walked forward with flashlights and light guns at the same time.

Lin Xu held the flashlight in his left hand, and placed the gun in his right hand on his left wrist to reduce the impact of possible recoil. He bent his knees slightly, lowered his center of gravity and moved forward cautiously.

Heinrich is almost certain that Lin Xu has received professional training.

Previously, he only learned that Lin Xu has rich combat experience through the fighting skills and combat awareness that Lin Xu showed in "Xinghai", but the actual combat experience may or may not come from individual summaries.

But the gun stance that Lin Xu now uses is widely adopted by the Marine Corps and field law enforcement, and is taught as part of the standard curriculum.

It's not a specific rule that can be learned through a hail of bullets.

Who was he trained under?

The alloy door was open, and a strong wind was poured into it. The temperature inside the tunnel was warmer than the outside world. There were still water stains on the rough ground.

The door drew the light into a square, and now, the square of light gradually moved away from the two of them, and the strong light from the flashlight pierced the thick and cold darkness ahead.

The ground and walls of the tunnel are all unmodified stone walls, with metal brackets supporting the mountain walls at intervals as reinforcement, wearing heavy exoskeletons, and the footsteps of the two people echoing extremely clearly in the narrow and long space.

Apart from that, there was no other sound, not even the wind.

Lin Xu smelled a cold, rusty smell.

The oxide layer of the alloy bracket was corroded, and a layer of purple-red rust wrapped around the corners.

This tunnel is like the esophagus of a long snake, long and narrow and dark, with no end in sight.

In fact, the light of the flashlight hit the lampposts on both sides of the stone wall during the exploration, but they could not find the switch, nor did they confirm whether the human mountain base still had energy to light the wall lamp.

Just when Lin Xu felt that walking mechanically in this tunnel almost made people forget the passage of time, a breeze came oncoming, and the flowing air indicated that there was a new space ahead.

He and Heinrich looked at each other, quickened their pace in tacit understanding, and moved forward against the wind.

The beam of light emitted by the flashlight suddenly broke off and dissipated in the air——

The bright light hit the face, blurring the vision of the two people who walked out of the darkness for a moment. After gradually recovering, what came into sight was a huge annular space.

Through visual rough estimation, the area of ​​the annular space is enough to be the size of a standard stadium, and the inner height from top to bottom is close to 100 meters, just like the enlarged version of the ancient Roman Colosseum, the tunnel can reach the one located in the middle of the space. Ring corridor.

Sunlight is introduced into the interior from the outside of the mountain through the mirror refraction at the top, illuminating the only two materials used in this underground building. The cold rock and steel are silent in the sunlight, and the fine dust floats and falls in the light and silence.

Lin Xu's expression was almost blank. He walked to the railing of the ring corridor and looked down. There was a three-story podium on one side of the central annular space. The smooth stone wall behind the podium stretched upwards. Heavy pressure, always dumped and crushed on the speaker.

However, a giant flag hanging down from the top of the stone wall eased the sense of oppression. On the damaged flag that was faded in dark red, the diamond-shaped logo of the Eastern Region Base could be vaguely seen.

The open space under the podium was full of water stains, and the metal floor slowly grew purple-red rust at low temperature, making it even more sparse.

This is a work delivered by the last industrial and technological power of human beings on earth, accompanied by a strange combination of unadorned roughness, oppression and cohesion.

It has been abandoned for years.

Nature and time are invading, but have not yet completely destroyed it.

However, there were no corpses or traces of battle in the huge space. Even the rows of seats under the podium were arranged in neat horizontal and vertical lines. Only the breath of tranquility, chill and metal flowed through.

According to the layout and construction habits of the old base, the personnel living area will be on the upper floor of the building.

"This way." Lin Xu called out to Shanghai Inrich, and followed the corridor to find the stairs all the way up. After passing the third floor, he entered a closed corridor with rooms facing each other on both sides of the corridor.

There is a metal card nameplate in the center of the door of each room, marking the owner of the room.

Lin Xu stood in front of the nearest door. Six names were marked on the nameplate. The door lock was an ordinary lock that was opened with a key. He raised the light energy gun and aimed it at the keyhole.

After a dull gunshot, the door lock was completely destroyed. Lin Xu pushed the door open, and what he saw was an ordinary small room with three bunks and six desks.

No bedding, futons and personal household items can be seen. The low temperature, hypoxia and few microorganisms in the snow mountain base make the shape of the bed, table and chairs well preserved.

Heinrich received Lin Xu's gaze, and also used a light energy gun to break the door lock and pushed open the door.

Same layout, same emptiness.

Where have all the humans who once lived in this base gone?

Join the Ark Fleet and leave?

But what Lin Xu can confirm is that the cultural context of the empire is very different from that of the Eastern Region, and even the official language of the empire has obvious traces of Romance languages.

The mark of the Eastern Region is rarely seen in the Empire.

Lin Xu made a gesture to Heinrich, and the two pushed three more rooms away. After confirming that the layout of the six-person room was all similar, they went up a few floors to find the location of the single room.

There should be high-level personnel of the new base living here. Lin Xu stepped up, confirming the names on the nameplate one by one, trying to distinguish whether there was a name he was familiar with.