"This cave doesn't seem to be a natural formation, it seems to have been built by man......" Zuo Tianmei said to me in a low voice.

When I heard him say this, I raised my head and looked around, and found that it was really as Zuo Tianmei said, the section of the cave we are traveling in now does look like it was built by man.

The thickness of the time crystals on the walls on both sides of this cave is basically the same, and there are traces of artificial construction in some places, especially the ground is very smooth and flat, which is definitely not formed by natural creation.

The traces of man-made construction in this cave are obviously not modern, perhaps thousands of years ago.

I don't know if it's my own delusion, when Zuo Tianmei and I followed the blood stains on the ground and walked inside, an uneasy and strange atmosphere gradually spread around us.

"Slow down, try not to make too much noise, and watch your ...... under your feet," Zuo Tianmei reminded me as she took the lead in the front.

The walls on both sides of the Time Crystal Cave we were in were about four or five meters apart, but the top of the cave was dozens of meters above the ground, and the whole cave looked like an oval egg.

The walls on both sides of the cave are all paved with crystals of time, which have been artificially carved to look very smooth and flat.

Just now we heard the sound of gunfire coming from roughly this direction.

And the purpose of our visit was to find the scene of the shooting.

Zuo Tianmei and I cautiously walked along the Crystal of Time Cave, and at this moment, Zuo Tianmei, who was walking in the front, was the most nervous.

When she was advancing, she almost didn't dare to get out of the atmosphere, and kept staring at the front of the cave with a frown, not letting go of any details around her.

And I was also nervous following Zuo Tianmei, and my hands were tightly clasped on the corpse bell.

The palm of his hand held the copper bell tightly, and his palms were about to sweat.

The reason why Zuo Tianmei and I suddenly became nervous was caused by the strange and uneasy atmosphere in this cave.

We always feel that the invisible thing is sneaking behind us.

The feeling was very clear, and yet I knew there was something following me, but I couldn't see it.

People always like cranky animals, and this fear of not seeing is often the biggest fear.

This inexplicable sense of dread spurred me on, and I was made to look back at the back of the cave we had walked through more than once.

"Senior brother...... There is a case in front ......"

After slowly groping forward for a distance, Zuo Tianmei, the leader, suddenly waved her hand at me and lowered her voice to remind.

As soon as Zuo Tianmei's words fell, a slight crisp sound came from under her feet.

Zuo Tianmei hurriedly stopped, squatted down and took a closer look, then said softly: "There are bullet casings on the ground, it seems to be an assault rifle bullet with a caliber of 7.62 mm, this should be the first scene of the gunfire we just heard." ”

I stepped forward and squatted beside Zuo Tianmei to take a closer look, and found that in addition to the bullet casings on the ground, there were also some large and small broken time crystal crystals scattered on the ground near the wall not far away.

There were several bullet casings scattered next to the crystals of these shattered Time Crystals.

As Zuo Tianmei said, this should be the first scene of the shooting.

Zuo Tianmei made a silent gesture to me, and then tiptoed towards the location of the Time Crystals scattered in front of me.

After a few steps, you can still see the traces of several uneven bullet craters on the walls of the Time Crystal on both sides.

The bullet points on the wall of the Crystal of Time are very scattered, which means that the owner of the gun is dealing with more than just one thing, maybe he has been killed by that thing, otherwise we would not have heard any movement after just hearing a dense burst of gunfire.

However, after a long day of careful searching at the location where the shooting was fired, no other valuable clues were found except for the fragments of the Time Crystal and those bullet casings scattered all over the place.

The strange thing is that the line of blood on the ground has not disappeared until it reaches here.

Zuo Tianmei and I decided to follow this line of blood to see what was going on, so we chose to continue walking.

During the walk, we must not only pay attention to the situation around us at all times, but also listen attentively to identify any suspicious subtle movements in the cave.

For a long time to come, Zuo Tianmei and I, a man and a woman, walked in the cave, and the most we heard was the clicking sound of our feet walking on the smooth ground.

Although the pace has been deliberately slowed down, the sound of the soles of the hard hiking boots stepping on the ground of the crystal of time is still very clear and abrupt.

Mixed with the sound of footsteps was my increasingly pronounced wheezing sound.

I could tell from this voice that I was very nervous at the moment.

"Senior sister! The guy behind us doesn't seem to have left yet......" After walking some distance behind Zuo Tianmei, I finally couldn't help but speak, although the voice was not loud, but it sounded exceptionally clear.

"Senior brother, don't think nonsense." Zuo Tianmei's voice came over immediately after.

"It's not just the first time I've looked back, there's nothing, but my mental power clearly perceives its existence, it's right behind me and almost close to my back, what is it going to do? Do you think it's a ghost? ”

My remarks made Zuo Tianmei frown unconsciously, and she didn't answer and remained quiet and silent.

When she looked back at me, there was a gleam in her black pupils.

I saw that she looked at me for a long time and didn't speak, I was slightly stunned, and then I asked in a low voice, "What's wrong?" Masters? Do I have flowers on my face? ”

I saw Zuo Tianmei staring at my face without saying a word, and I didn't respond for a long time, and immediately faintly sensed that something was wrong.

The next moment, I almost didn't hesitate to turn around and take a look.

"Don't move......" The moment I turned around, Zuo Tianmei immediately stopped my next move.

Hearing Zuo Tianmei's words, I chose to believe her, and forcibly stopped my action to turn around.

"Senior sister, what did you see? Did you see that thing behind me? I didn't turn around, but I vaguely guessed something, and my tone of inquiry was already visibly trembling.

When I looked at Zuo Tianmei again, I saw a hint of imperceptible panic in her eyes.

Zuo Tianmei didn't immediately pay attention to my inquiry, but still stared at me, or the unknown existence behind me.