According to Taria, what Chen and I saw before me was nothing more than the remnant of decades of money, a ghost. It happened to be recorded on a thunderstorm day and released under the same conditions.

We have been so believed, wishful thinking, and without doubt throughout the incident. Little did I know at the time that it wasn't an afterimage at all, at least not a simple afterimage. Because what happened afterwards was too unreasonable and too unbelievable, our memories of this train became blurred. However, in the whole affair, it is the key that leads to everything, to end everything, and we have paid a lot of money to realize this. It was so costly, so big that it was almost unacceptable, so big that it almost cost us everything.

Of course, it was impossible for me not to notice this at the time, although it was not without a little clue that I noticed it, but things were often not as dramatic as in stories or dramas. Even if everything we went through was rewritten into a script, it would be a tragedy for all of us

After the previous wild run, a lot of time has been lost, Chen Zaihai suggested that we better move quickly, if we want the things behind to catch up again, we will die too unjustly. I looked at my watch and thought to myself, yes, it would be dark if I didn't leave, and I felt that this place was much more dangerous at night than during the day. Talia did not object, and the group counted their equipment, chewed on the dry rations of the march, and set off.

I have to say here that Chen Zaihai and I have a total of six people, plus the three engineers brought by Talia for a total of ten people. It is awkward to march in such a wood, and it will become very troublesome to communicate with the head and end of the long snake line in a line, and it is too late to inform the end of the team if you encounter any situation in front of you. It rains at every turn, plus the fog that can occur at night, but it's fine during the day, but with the limited number of batteries we carry, it's no different from being blind at night, and it's easy to get lost. If you gather together, it will seem too crowded, and the woods here are not so spacious. The abandoned rails were buried deep in the pile of rotten leaves, and we had to stop every step to check the direction of the tracks, and from time to time we had to guard against sudden attacks from wild beasts or enemies. In the end, we had to line up three engineers to walk in the front and be responsible for clearing the road, each with a rope tied to his waist, and pulled as soon as there was a change. I, Chen Zaihai and Talia each have one, which feels very strange, the same as walking a dog, the difference is that we can only see the dog chain. The remaining four engineers were responsible for guarding the remaining three directions.

It's silly and primitive, but it does give us a sense of security. We walked for three days, and there were no accidents in between, but we were lucky enough to pick up a box of airdropped supplies.

Without saying a word, on the fourth day we finally reached the end of the abandoned railroad tracks. I thought I would see an abandoned old train or a station or something, but in fact, this thing in front of me was completely beyond my imagination, and the railroad tracks did come to an end, and the ground part was partial

"The little devil is so imaginative, he built a train and went underground. By now, I'm realizing how awesome our anti-Japanese old-timers are, and the little devil of the subway has used it so early. Chen Zaihai sighed.

The first subway in China was the Beijing Subway, which began construction in 1965. On July 1, 1965, the construction of Beijing's first subway was started, and on October 1, 1969, the first subway line was completed and opened to traffic, making Beijing the first city in China to have a subway.

The original subway line 1 was under Chang'an Avenue, which was originally built with reference to the experience of the Great Patriotic War of the Soviet Union. In urban warfare, the subway system made the Germans suffer. It's ironic that Line 1, which is now overcrowded, was built for war purposes. I think that the first wave of meteorologists, Chen Zaihai and I still did the subway.

Chen Zaihai and I said that Talia was Soviet again, and the scene in front of him was still acceptable. But the few engineers behind us were dumbfounded.

"I said, chief, what is this? It's the first time I've seen this train go underground in my life. Isn't this a dirt mouse? An engineer couldn't help but ask Chen Zaihai.

"So you bastards. The sub-insight is short, this is called the subway! We also have it in China, it's not a big deal, don't make a fuss about it. Chen Zaihai replied casually.

Chen Zaihai said that the thing in front of him was a subway, and it was not wrong, after all, it went underground. But this thing is very different from the subway in our cognition, the main thing is that the underground tunnel is dug in a very different way.

It should be noted here that digging a tunnel underground is not an easy task, and it requires a lot of money and time, at least several years to complete. The simplest and most straightforward method is cut-and-fill, which is usually to dig a large pit in the street and then build a tunnel structure underneath, and the tunnel has enough support before resurfacing the road. In addition to the roads being excavated, other underground structures such as power lines, telephone lines, water pipes, etc., need to be reconfigured. The materials used to build such tunnels are generally concrete or steel, but older systems also use brick and iron.

It is clear that the Japanese did not use this method, and the most obvious evidence is that this is a forest, surrounded by dense trees, and the age of the trees is no different from the overall environment, and none of them seem to have been planted after digging and filling. At that time, it was wartime, and little Japan would not be so environmentally friendly to plant trees. In addition, the materials used for the inner wall of the tunnel are not concrete and steel, and at first glance the potholes are very rough.

Standing still is not an option, and now you can only take one step at a time. Chen Zaihai took the lead and walked towards the mouth of the tunnel. The weeds and dead leaves on the ground along the way made us eat up, and strangely enough, the mouth of the tunnel was as clean as if it had been burned, and there was nothing but a few trees.

When I walked in, I found that this tunnel is really big, and it is definitely the level that is not comparable to the current Beijing. The size was enough for 5 five wagons to enter side by side. It seemed to be a transit station for supplies, and I even saw the improvised hoisting equipment and warehouse on the side, all rusty, and the Japanese seemed to want to transport some supplies underground.

Talia ordered the engineers to scatter to reconnoiter and clear the danger, and Chen Zaihai ran to the warehouse while saying that there might be something good left. As soon as I saw that nothing was going on with me, I decided to take a closer look at the materials used to build the inner walls, and the pitted surface always made me feel that it was not dug by modern means.

As soon as I entered the tunnel, the light around me dimmed, and it was still daylight outside. It's amazing, I could still see it from a distance, but now as soon as I approached the wall, it became so black that I couldn't see anything clearly. Suddenly, a cold wind blew from the depths of the tunnel, and my heart was cold inexplicably, and cold sweat almost flowed out.

The curiosity just now disappeared without a trace, and this place is weird, so it's better to find Chen Zaihai and them as soon as possible. Just as I was deciding, there was a sudden light behind me, and the wall in front of me was instantly illuminated.

"What are you doing, Lao Su? A person is on this wall like an evil spirit? ”

It was Chen Zaihai's voice, but I was in no mood to pay attention to him. The inner wall of the illuminated tunnel was as potholed as it had been seen, and it had been thought to be caused by different building materials. As I got closer, I was sure that the building material was the reinforced concrete that I used in engineering, and I would not be mistaken, in a dull gray tone.

But what is creepy is that the walls that should have been flat and solid are densely packed with cracks, some of which are large enough to penetrate a person.

The cracks of various sizes were filled with crimson rocks of various shapes, some of which were blasted out with teeth and claws, and some of which were only exposed. It was like something was sealed inside the wall and trying to escape.

At the same time, a faint smell of sulfur flowed into my nostrils: is this thing volcanic rock?

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