With both feet on the ground, after a long and difficult climb, Long Yun stood breathlessly and looked left and right because he was wearing a gas mask.

In the small space at the end of the passage, the acetylene blowtorch is very bright, illuminating the surrounding scenery very clearly; However, behind a metal grid fence gate in front of him, there was a shadowy and seemingly large underground space, which was not very visible from where he stood.

Wearing a heavy winter suit, he felt that the temperature was getting higher and higher just now when he climbed all the way down, although he hadn't reached the scorching heat yet, Long Yun, who had just climbed hundreds of meters of vertical passage, was still sweating, he subconsciously took off his backpack and put it on the ground to prepare to take off his coat, while completely subconsciously thinking that this cold firework burned for a long time, and he climbed for so long, it was still burning-

Cold, cold fireworks?

Suddenly feeling that something was wrong, Long Yun immediately stopped moving, his eyes were wide open, his expression was strange and he froze in place, and the heavy backpack in his hand slipped from his fingertips and fell to the ground with a muffled sound. Staring wide behind the glass lenses of his gas mask, the young man remained slightly hunched, his eyes almost unblinking, staring at a cluster of jumping sparks against a dim background.

Cold fireworks, a cold firework with red light, were "sizzling" on the ground at this time, and the light emitted by the burning made the surrounding scenery stained with a layer of dark red.

A ...... A cold firework that is burning?

It was completely inadvertently that he noticed this scene, and Long Yun, who was dumbfounded, had his first thought, "This is the fireworks he threw down." He slowly raised his stiff arm and touched the cold flame carrier under his ribs. At your fingertips. There was only one empty spot, and he swallowed with great difficulty. Immediately denied this speculation, a burst of inexplicable panic hit his heart, the eyes behind the mask lenses began to turn left and right, in the core area of the base hidden deep underground, a burning cold firework appeared, could it be that there were other people here?

- W-How is this possible?

Suddenly, I was overwhelmed by fear. Long Yun, who was short of breath, immediately thought of the scene of opening the side door of the building, and after the airtight metal door on the edge opened, a foul aura burst out, which had obviously not been opened for many years. And the cold flame in front of him, which was emitting a bright red light, had obviously just been ignited, but here but himself, could it-?

That being the case, then......

Regaining a trace of reason from the inexplicable panic, Long Yun couldn't help but think about what if. There really are other people here, so why would "he" throw a firework here? What are the intentions of this, and where did they come from?

Unsuspecting, witnessing a scene beyond the comprehension of ordinary people, the young man standing still in the red light of the fireworks slowly straightened up, while engrossing in the snooping of consciousness, he wanted to slowly search the place deep into the base and the place where the sense of mind became more and more intense, to find any clues of "others" in the vicinity. However, after trying this for a while, he slowly picked up the AKS74 in his hand, ready to compete with the unknown enemy lurking in the darkness at any time, but Long Yun was puzzled and noticed that there was not a trace of human consciousness activity in the vicinity.

Uh, then again, now the eyes are full of dim red light, this "boom" burning cold fireworks, is it a little too burn-resistant-

But、But what about the light of the acetylene blowtorch?!

Deeply in complete confusion, but suddenly noticed something abnormal, Long Yun felt a shallow dizziness all over his body, and he almost made him unable to stand and fall to the ground.

Suffering such an accident, struggling in vain in panic and confusion, as a strange vertigo that had never been felt before flashed in his mind, he had no idea what had happened or how long it had been, and when he regained consciousness, with the help of the dim and white blowlights, Long Yun found himself lying to the ground, and the gun in his hand was thrown aside.

Trying to turn the head, the head seems to be no longer dizzy, but ......

But what the hell is going on?

Laboriously getting up from the ground, the first step was to pick up the AKS74 thrown next to him, the startled Long Yun carefully reached out and grabbed the acetylene blowtorch, he slowly took two steps back, leaned against the hard side wall of the passage, and slowly scanned the small space illuminated by the light, even not letting go of every corner.

No, as far as the eye can see, how can there be any "sizzling" cold fireworks on the ground?

Suddenly encountering an accident, only to feel that his lips were dry and his heart was beating violently, Long Yun took a few deep breaths under the mask, and reluctantly calmed himself down first; Although he still felt quite frightened, his mind was already trying to recover, and he knew that he had to stay calm enough now, otherwise he would be left alone in this extremely strange secret base, and if he was not in a good mental state, then anything could happen.

With the help of the light of the acetylene blowtorch, he looked at the few square meters of space inside the fence gate again, and there was indeed no shadow of cold fireworks everywhere, Long Yun slowly got up and groped to the fence door, he glanced at the padlock on the door a few times, and basically completely denied the guess just now.

Obviously, the cold fireworks I saw just now couldn't have been thrown here by someone else.

Looking up at the dark emergency passage above, Long Yun felt that he could not be so careless as to pass by other visitors to the "Dead City" during the climb, and it was clear and clear that it was impossible for people to hide their figures. In this way, it seems that there is only one explanation left, this cold firework was thrown down by himself just now, but why did it suddenly disappear again?

- No, no, if it's one, this ...... This can't be, hasn't he just tossed and turned more than a dozen times and climbed hundreds of meters down the emergency passage!

Facing the white ground in front of him, he couldn't figure out what was going on with the cold fireworks just now, looking up at the black emergency passage above, Long Yun almost climbed up in one breath and returned to the first landing platform to see if there was the burning cold firework lying there; However, after thinking for a moment, he still dispelled this unrealistic and reckless thought.

Not to mention how much physical energy would be consumed to climb all the way up like this, even if he really returned to the place where he landed just now, how could it help solve the doubts in his heart if he found or couldn't find the cold fireworks.

Thinking of this, Long Yun, who had encountered an inexplicable and strange scene, sat down on the spot, he persuaded himself to slow down his breathing, calm his feelings, and not rush to cut the lock and move on, but carefully reviewed his experience from stepping into the "black wall" to just now, trying to find a clue from it.

As his thoughts slowly returned to stability, combing through the series of actions just now, the young man slowly remembered some signs, and he vaguely felt that it seemed that after he lifted the iron cover and entered the emergency passage to climb, the situation began to become a little wrong. Not to mention anything else, just falling and tossing again and again, it seems that he is constantly going deeper into the ground, and the temperature around him is gradually rising, but now that I think about it, there is a subtle detail that is very strange, that is, no matter how he acts, the monotonous "oh" climbing and landing sound ringing in his ears has never changed at all.

Entering a passage that is vertically downwards and has a scale of hundreds of meters, will the sound echoing near the end be the same as the echoing sound in the middle of the passage?

Thinking back to the details he had overlooked before, Long Yun didn't feel too frightened at this time, he just bit his lip in confusion and frowned behind the gas mask.

Although he didn't understand what was going on, he did have a vague guess now, if he said that his so-called "climbing" hundreds of meters just now was not really so far underground, then combined with the analysis of the situation of "seeing" the cold fireworks later, there is an explanation that can barely be explained, that is, after he entered the emergency passage, he gradually appeared for some reason - "hallucinations".

"Hallucination", this explanation, seems a bit absurd.

However, contemplating in the dark, Long Yun was very keenly aware of the sudden thought, just after he felt dizzy for a while, the cold fireworks and other scenes in front of him all "disappeared", so considering the strange environment he was in now, it seemed that it could be imagined that he was now very close to the mysterious source of consciousness fluctuations, so he would be affected by this fluctuation.

Yes, even if he, or a superpowered person like Viktor Rezenov, is not yet devoured by a mysterious force when he approaches the "dead city", but after all, it is still far away, and in addition to the blocking effect of the "black wall"? And now, really going deeper and deeper into the core area of the base, the telepathy is becoming more and more intense, so if this kind of power is secretly at work, then it is completely possible to have any kind of "illusion".

Envisioning such a possibility, trying to explain the strange experience just now, Long Yun, who had experienced countless bizarre events in the past few months, easily convinced himself to believe this, but the next moment, he soon began to hesitate a little. If it is said that just by approaching the mystical power to this kind of course, there will be an inexplicable "hallucination", then continue to follow this path......

Obviously, the mind will be more intense, and what will happen to him next?

It's still just an "illusion", so if he gets closer, will he have a stricter consciousness problem due to the stronger fluctuation of thoughts, and even become the same as those who died tragically in the "Rome" base. (To be continued......)