The palm leaves that Ye Wan'er and I used to plug the hole in the ground have long been scattered by unknown creatures, and many palm leaves seem to have been bitten, and there are imprints in many places.

"Qin Ming, when we left before, it was all paved, and looking like this, it doesn't look like it was destroyed outside, but it looks like something inside was drilled out to arch like this!" Ye Wan'er looked at the black hole in horror.

"It's okay, don't move the three of you now, I'll go down and see what's going on!"

The fear of this unknown creature made the three women shudder.

"Qin Ming, if it doesn't work, let's go back, after all, our life is very stable, so why bother to come and see what is in here~ If you meet any fierce beasts, it's not worth it!"

Luo Shijing has no confidence now.

"It's all here, it's okay, you just wait for me above, I'll go down by myself!"

In order not to make the women hesitate and worry, I jumped into the hole with a shotgun first.

In fact, there is a bit of a pretending element in this, after all, I am also a little lacking in confidence in my heart, but the bullshit has been blown out, and I can't slap myself in the face.

"Wan'er, you give me a small torch we made before!"

It's too dark down there, so it's better to take a picture of something.

Speaking of this little torch, it is still made of waste mutton fat that I left over from before, and I only need to tie a few strips of rags to the sticks and sprinkle some mutton fat on top of the strips.

Although oil is flammable, it cannot be spontaneously combusted, and it needs to be burned more thoroughly with the help of clothing, wood, etc.

I lit this little improvised torch with a lighter, and the cave lit up in the spotlight.

The location where we fell before was indeed a dirt wall on three sides, but it was not like this on the other side.

I shone a torch forward, and found that it was a long passage, but the brightness of the torch did not reach the end of the cave.

This long cave is very narrow, and the most puzzling thing to me is that the walls of this long cave are very smooth, not like they were excavated by hand.

I didn't dare to go forward, but just shook the torch around to see what was going on.

"Qin Ming, what's going on down there, did you find anything?"

Luo Shijing looked very curious, but she didn't dare to come down, so she could only pull her neck and ask me.

"I haven't found anything unusual yet, but it's a little strange today!"

"What's wrong?" Ye Wan'er shrank back in fright.

"I haven't heard a similar crisp sound today, for some reason, the cave was very damp today, and I remember it was dry. ”

This aroused my interest even more, when we came that day, it was very dry underneath, but today it was a little wet, is this cave still automatic temperature adjustment or some kind of mystery is not possible?

I'm going to have to walk along the cave path and have a look.

"Qin Ming, you get out of the way, I'll come down!"

Luo Shijing jumped down from the hole in the ground as she spoke, and because she had no experience, she sat directly on the ground.

"Ouch, my ass ......" Luo Shijing began to complain while holding her round belly.

Tian Mengling, the little girl, naturally did not lag behind, and jumped down after Luo Shijing.

"I, I, I ......"

Ye Wan'er hesitated for a long time, and it seemed that she still had a problem in her heart.

"Wan'er, you stay here, the three of us go in and see what's going on!"

This Nizi is really timid, and the psychological shadow left by the last time is difficult to erase.

"Okay, stay safe, if something happens, run back quickly! I'll meet you at the entrance of the cave!"

We nodded, grabbed our torches and started walking inside.

Tian Mengling, this little girl, is still very excited, and I am also very interested in this kind of place, after all, watching that kind of tomb robbery movie when I was a child is like this, which is both nervous and exciting.

I didn't expect to be able to experience this feeling for ourselves today.

This long cave is not very big, so it can only allow us to pass through one by one, in order to protect them, I chose to walk in the front, behind the Tian Mengling Palace, and sandwiched Luo Shijing in the middle.

"Brother Ming, there is one thing to say, the surroundings of this cave are still very smooth, and it doesn't look like someone deliberately corrected it, but it looks like ......" Tian Mengling was saying, and suddenly stopped talking.

"Why, what is it? You girl, you are so appetizing!" I looked back at the little girl.

"It's like some kind of creature 'printed' it. Brother Ming, look!" Tian Mengling said, pointing to a line on the cave wall.

I looked closely at the lines and found that they were very silky, perhaps due to time, and there seemed to be a residual cortex of this creature on it, but I couldn't tell if it was biological.

"How do you explain this?"

"This situation becomes the thermal motion of molecules, how can you say that?" Luo Shijing now raised her arms, like a university professor.

"Qin Ming, you should have drunk salt water, right?" or sugar water!"

"Oh, I've drunk all of these things!" I rolled my eyes.

"Sugar and salt are solids themselves, but they are soluble in water, and when they are dissolved in water, they will diffuse, the most obvious is the dripping of red ink into the water. This can also be attributed to the thermal movement of molecules. "Luo Shijing's head is Dao.

"And Qin Ming, you should also understand why we dry our clothes quickly in the sun and slow in the shade, right?"

"This ...... Isn't it because the sun is hot, so the water has evaporated~"

I still understand this kind of problem, hahahaha.

"That's right, but it's only half right, because the temperature in the sun is high, the movement of water molecules will be faster, so it will dry faster. ”

"But what do you say all this has to do with this pattern?" I was puzzled, what is the inevitable connection between the two?

"Of course, I will give you a simple example to show you that molecules are in eternal motion, and not only gases, but solids as well. Luo Shijing said.

"For example?"

"The coal we put in the corner for a long time will turn the surrounding walls black because of the attraction of molecules!"

"it, isn't it because the coal itself is black, so the corners of the wall are blackened?"

Luo Shijing rolled her eyes: "It's terrible to be uneducated!"

She didn't explain it to me directly, but continued to talk about the cave wall: "This pattern is caused by the diffusion of solid molecules, which means that there is a creature that inhabits here all year round, but it ......"

Luo Shijing wanted to speak and stopped.

"I said, what are you doing? Tian Mengling was the same just now, just say whatever you want, what are you doing selling Guan Zi for?"

"The blood of our humans is hot, and the blood of many mammals is also hot, and the creatures in the biological world are mutually restricted and exist with each other, so naturally there will be cold-blooded animals. Luo Shijing said.

"Cold-blooded animals, is their blood cold?" As soon as I finished speaking, I noticed that Luo Shijing's face was dark, and sure enough, I asked a very idiotic question.