This wall made of stacked stone sheets used to block the toilet.
Under normal circumstances, human feces will decompose naturally within 10 days to a few months after being buried in the soil, but there are exceptions where it will be preserved, mainly depending on the people's usual eating habits at the time, the surrounding preservation environment, etc.
The cave does have this condition.
There is a large amount of limestone and nitrate layers here. Dust accumulates at the bottom of the pit over a long period of time, forming a certain thickness. The limestone will quickly absorb the moisture contained in human feces itself, and eventually turn into a semi-fossil in this hard lump state.
He guessed: "The specific time is hard to determine, but I estimate that it is at least a thousand years ago, which means that there were people here before us. There are two toilets, and there is a distance between them. It may have been divided at that time."
Men’s and women’s restrooms.”
"Wait! I got it!"
Dou Sprout suddenly clapped his hands and said: "Head up! I know what's going on!"
"Look! There are thousands of stone sculptures in Guizailing above. Those stones are the same as those in the underground caves."
"But there are no traces of extensive mining in the mountains around Guizailing. Didn't Lao Tian say before that the stones for the Guizailing stone carvings were taken from the local area, but we have never found where they were taken from. Isn't it right here!"
He raised his head and his eyes lit up.
"Indeed, and this possibility is very high. The stone carvings on the ground span a wide range of ages. From the Spring and Autumn Period and the Warring States Period to the late Qing Dynasty, people were carving them. It turned out that the materials were taken here..."
Ah Chun looked at Dou Sprout and said, "You are pretty good at guessing these things."
Dou Sprout looked happy, waved his hand and said, "Where is it? I just like to read books and have a little more knowledge."
I knew he was just being blind. Seeing him like that, I just had to write four words on my face, "I'm awesome."
"No wonder... no wonder Junior Brother and Tian are so anxious. It turns out there is really a secret underneath."
He thought about it and said, "The ground here is clean. Let's take a rest and eat something to keep warm before walking."
Our bags were rich in supplies, including canned yellow croaker, sesame seed cakes, ham sausages, biscuits, chocolates, etc.
We turned on a headlamp and put it on the ground for lighting, and turned off the other lights to save power. We sat around eating and drinking water to regain our strength.
"Wen Bin, have you finished eating?"
Brother Yu nodded and said yes.
The head said: "Then go ahead and stick two pieces of reflective road signs on the wall, and we will try to mark them all the way."
"good."
Brother Yu got up and took the reflective strip from his bag, walked over to find a smooth place to stick it on.
Marking is something that almost all professional cave exploration teams can do. We rarely go into caves, so we follow what others have done.
Brother Yu put up a sign saying that he would relieve himself behind the stone wall.
The wall is only over one meter high. Brother Yu is tall, and we can all see him unbuttoning his pants.
Ah Chun kept watching while eating the canned food.
Brother Yu was a little embarrassed and squatted down.
As a result, Brother Yu just squatted down.
All I heard was a "crash!"
The low stone wall stacked on top of each other suddenly collapsed! A lot of dust was thrown up.
"Cough! Cough!"
Brother Yu was choked by dust and coughed. He quickly raised his hand and explained: "I...I didn't move or touch..."
Before she finished speaking, Brother Yu saw the way Achun looked at her and immediately picked up his pants.
Holding half of the sesame seed cake in his hand, Dou Ya Zai laughed and said, "Haha, Brother Yu, you are gone, I saw it."
"What's going on? It's so damn unlucky."
Brother Yu kicked a stone away, cursed, and jumped out.
After walking only four or five steps, Brother Yu suddenly turned his head in confusion and walked back again.
"What's wrong, Brother Yu, what are you looking at?" I asked.
Brother Yu waved to me: "Bring your flashlight and let's take a look."
I took a flashlight and went over to take a look.
I saw a few oval-shaped stones at the top of the pile of collapsed stone walls.
And on the surface of the stone, there are neat scratches carved one after another. Some of these scratches...
Some are like who is counting the days and recording the days.
