PS: PS: Thank you to the readers who are still cheering. It's ugly without referral data.

From my point of view, the edge of the black hole is still very clear and obvious. Illuminated by the white cyclops, stalactites of varying lengths hang from the edges of the black hole, like a row of sharp teeth. The black hole itself is like a big mouth of a black hole, ready to pounce and swallow everything alive.

The light from the two cyclops flashlights came together, and Jack and I set the flashlights in the high beam, which should be far away. However, the end of the flashlight is darkness. We can't see anything inside the black hole, as if a flashlight enters the black hole and then disappears, or is swallowed by it.

I feel more and more nervous, how deep will this seemingly small black hole be? This depth must reach the ground. Of course not, this is just my assumption, the temperature here does not change due to the presence of the black hole, and there is no wind blowing in. That means that we have gone deep into the ground, so we can have such a deep hole, but we can't reach the surface.

My mind was confused and my mind was even more nervous. "Smack", I turned off the cyclops flashlight in my hand. I couldn't continue to look directly at this scene that puzzled me, and I was even more worried about the strange things coming out of this black hole that I couldn't face.

"The hole is too deep for us to see inside. I recommend getting out of here, I feel bad. Well, I guess it's a hunch. "I immediately spoke my mind to Jack.

Upon hearing my words, Jack first turned off the cyclops flashlight. But I feel like he's more of a battery saver, because I don't see worry or fear on his face.

"What does this black hole remind you of?" he asked me instead.

Yes. It reminded me of the black hole in the pitch-black underground passages that swallowed my boots. But I shook my head. "Nope. If there is, it's fear. I couldn't imagine a black hole so deep on the roof of a cave with stalactites that the light of the cyclops couldn't see inside. ”

"Yes, the hole could be deep, and that's one of the possibilities for this condition." Jack said as he pulled the glow stick out of his collar.

His glow stick was inserted diagonally into the clothes behind his back from his right shoulder, peeking out of the collar by a ten-centimeter. He used an exaggerated katana drawing motion, slowly pulled the glow stick out of the collar, held the end of the glow stick in both hands and pointed in the direction of the black hole, and continued, "Have you considered another possibility?" ”

Then he started to pretend to be forced, thinking that he was acting coolly and posing motionless. Follow the plot. I should be stupid at this point. He replied very cooperatively, "No, please tell me." to help him turn on the pig's foot mode.

But only if he really has a katana in his hand, and his tall stature. There is indeed the momentum to look at everything. But he was holding a glow stick. With a knife in both hands. The small section of glow sticks that glowed pale blue was only five or six centimeters long. I couldn't make up for it anyway, but I smiled vulgarly, it was clearly a* with a fluorescent sleeve.

I don't feel inferior in the slightest about my obscene thoughts. Instead, he couldn't hold back his laughter. "It seems that you are indeed an expert in Asian archaeology, and you know the religious customs of Asian countries very well. You have been in Bhutan for a long time, you have been educated by them, you have accepted the totems they worship, but it is difficult for me to accept it, and it is not appropriate to hold such a ritual here. ”

My words were accompanied by breathless laughter. But Jack's face suddenly turned eggplant-colored. He looked up at the glow stick in his hand and took a sip of "shit". Then I saw him wave the glow stick twice in a bit of anger, and I thought he would have thrown it out if it wasn't for the lack of light sources. Apparently he approved of my vulgar ideas, and it was indeed very vivid.

It should be noted here that Bhutan is a very interesting country, and this country has the custom of worshipping the male sex. Not only there are special ceremonies, but each family will also have a male * sex * * * breeding * sculpture for offerings, we are here for the New Year to stick the door god, he there is a door on the two * * * device. Looking at Jack's expression, he knew this custom in Bhutan.

"Well, now tell me what you think, what else is possible."

Jack shrugged, glanced at the Laotians and Vietnamese, and said, "Let's talk about it in the past, I don't want to talk about it here." ”

I don't want to stay here, this black hole gives me a lot of oppression, and I always feel that there is a great danger in it. Jack and I walked back and forth with our heads buried like ostriches, and the glow sticks I gave to Fumi became clear as we walked over the sawdust slope, and when I looked at Fumi by the underground river, I could only see a little mist of light.

Jack walked ahead of me, and he suddenly stopped, turned his head, and said, "I'll tell you what I think here." I don't want the Vietnamese to hear it. ”

I know that Jack is cautious and wary of the Vietnamese, and he doesn't even trust the two Laotians. I nodded and leaned closer to him, I didn't want the Vietnamese to hear that. I'm worried about the emotional breakdown of the Vietnamese. He's in a bad state, he's very tendency.

"If this hole is only deep, even if our flashlight can't shine on the deepest part, the inner edge of the hole should be illuminated. But the reality is that the light from the cyclops flashlight enters the black hole and disappears, and I think you've noticed that. "With that, Jack cast me an inquiring look.

Of course I saw it, and I nodded and said, "Yes." And then what. ”

"Actually, there are two reasons for this."

I interrupted him. "Didn't you say a possibility? How did it become two again. ”

Jack was very upset that I had interrupted him, and gave me a blank look. "One of the reasons has to do with the structure of the black hole, which can be linked to the depth of the black hole, which is the case you see.

You can imagine that this black hole is a jar with a closed mouth, upside down above our heads. Because the mouth of this jar is very small, and the internal space is enlarged from the entrance, as long as our flashlight does not shine on its bottom, it will not shine on its walls. From what we have seen so far, there is a lot of space inside this hole.

But if this hole is really an inverted jar as I judged, then in this stalactite cave, there is a hole in the hole that is concave upwards, do you think it is normal? Or is it natural? ”

Jack's words forced me to seriously consider that his analysis, although whimsical, could explain the phenomena we saw. Sometimes that's the case, when you can't explain something with common sense, no matter how unbelievable the explanation is, it can be the truth, at least worth thinking about.

Jack didn't give me time to think about it, though. "Obviously not. I think this black hole is probably the first man-made facility we've seen underground. (To be continued......)