Uncle Tian Muzhuang stood down at the two stalagmites and said: "The name of this jar cave is based on the sixty meters I walked just now, looking in from the outside of the hole, or standing here and looking out, it looks very much like a jar shape!"

Gu Feifei stood between the two stalagmites and said, "These two stalagmites are really heavenly creations, they are amazing!"

"Niece Gu, like these two stalagmites, there are a lot of them in this cave, but some of them have slightly different shapes!" Uncle Tian Muzhuang said.

Continue to move forward, walk less than five meters, then see a wide hall, the top of the hall hangs a lot of stalagmites, stone pillars, look up like upside down animals with different looks, some like elephants, some like pigs, some like monkeys, some like dogs, and the hall is more like-looking, some stalagmites, stone pillars are so big that ten people hold hands and hug, the shape is like a huge tree, some are like a pagoda, and it is layer by layer.

Gu Feifei may have never seen such a magnificent stalagmite hall without any damage from anyone, and she was a little stunned for a while, she praised again and again: "It's so spectacular, it's amazing!"

"There's so much more to it in!" Uncle Tian Muzhuang said.

The group continued to walk forward, walked less than twenty meters, there was a faint roar of water in front, Uncle Tian Muzhuang said: "There is a section of the Yin River in front, listen to its water sound, you should imagine that the water in the Yin River is very turbulent, each of us must pay attention to their own feet, if the front foot is not steady, don't follow the back foot, if it falls, no one can do it!"

Suddenly, under the illumination of the flashlight, the front of the cave flashed with 10,000 points of crystal clear light, looking at a white point of light, Gu Feifei asked Uncle Tian Muzhuang in surprise: "Uncle, what is that, so beautiful, what kind of treasure is it?" ”

Uncle Tian Muzhuang stood still, pointed to the place where the light returned with a flashlight, and said, "That's a stone flower like sea coral!"

After the big Uncle Tian Muzhuang finished speaking, he took a group of people to approach the stone flower, the hole is slightly smaller, and the water droplets are constantly dripping on it, there is a small stream of water flowing down the stone wall of the hole, a group of people are close to the stone flower, are surprised, those stone flowers are about fifty meters long with the hole, look white and flawless, Big Uncle Tian Mu Zhuang said: "These stone flowers, different sizes, some have the thickness of a thumb, some have the thickness of a small wine glass, the smallest also has chopsticks thick, but no matter the thickness, it is hollow inside!"

After listening to Uncle Tian Muzhuang's words, he was very surprised, Uncle Tian Muzhuang asked Gu Feifei to pick a stone flower to verify it, Gu Feifei said: "Uncle, we believe your words, these stone flowers, we can't pick them, if the people who come pick a branch, it will be picked quickly, but if you want to form a stone flower, how many years will it take!"

"This cave has also been explored, and the age of the formation is about 150 million years ago, these stone flowers are formed by calcification when water drops, and it takes about 500,000 to 1 million years for a stone flower to form!" Uncle Tian Muzhuang said.

"Uncle, it can be seen that these stone flowers are very precious, we must protect them well, maybe one day this cave will bring great blessings and benefits to you on the four platforms!" Gu Feifei said.

At this time, Luo Sisi and Sun Junli picked up a stone flower on the ground and played with it carefully, Sun Junli looked at it for a while and said: "Uncle, this stone flower is really as you said, it is empty inside!"

"Actually, this stone flower is white and flawless in this hole, once it is taken out of the hole, it will change color in an hour, both gray and black, and there will be no appearance at all!" Uncle Tian Muzhuang said again.

Gu Feifei looked at Luo Sisi and Sun Junli, and said to Uncle Tian Muzhuang: "Uncle, every thing in this cave is best protected by it, don't let people come in and move it at will, including stalagmites and stone pillars that are broken on the ground, and of course the small stone flowers that fall on the ground, if you don't protect it, the people who come in will move things inside, and when the time comes, if it is damaged, this hole will not have much value!"

Seeing Gu Feifei say this, Luo Sisi and Sun Junli hurriedly put the stone flower in their hands back in place.

After walking through the stone flower piece, the hole inside suddenly became open, like a large piece of flat land, but this flat ground was paved with tidal mud, and it was obvious that this tidal mud was swept in by the water from which one connected to the hole outside!

People can walk on the mud and tide, after the big uncle Tian Muzhuang led a group of people to walk through the flat ground, the roar of the water became louder, there were ten forks in front, and the roar of the water came from the first hole on the right side of the person facing the front!

Uncle Tian Muzhuang pointed to the hole where the roar of water came from with a flashlight and said: "No one has ever entered there, and with the sound of water, a cold and damp breath swells up in the hole, and the flashlight can't shine far, I don't know how big the water is and how deep the hole is, no one has ever dared to go!"

Everyone shone their flashlights at the mouth of the cave where the roar of water came from, but no one approached the cave, including Liu Junwen and Tian Limai!

Uncle Tian Muzhuang shone the top ten holes with a flashlight, hesitated for a moment and said, "Whether we went to the third hole or the fourth hole on the left just now, I don't remember accurately!"

After the eldest uncle Tian Muzhuang hesitated for a moment, he called Liu Junwen and Tian Limai to his side and said: "Junwen nephew, you take a few nieces to rest here, Tian Limai and I will go to the third hole to take a look, if it is the third hole, we will come back and call you, if not, then it must be the fourth hole!"

Liu Junwen said: "Uncle Da Yu, let Brother Mai rest here, and I will accompany you!"

"No, nephew, you are older than Tian Limai, there are a few girls left here, I can rest assured if you stay here!" Uncle Tian Muzhuang said.

Liu Junwen had no choice but to agree.

Uncle Tian Muzhuang took Tian Limai into the third hole, and Uncle Tian Muzhuang said: "Tian Limai, there are only two of us, you follow me closely, and pay attention to the rope, otherwise we will not be able to come back if we get lost!"

Walking into the cave about fifty meters away, he saw that there were things like stoves built everywhere in the cave, Tian Limai asked Uncle Tian Muzhuang curiously: "Uncle, are those stoves built to make?"

"It's used to boil nitrate!" Uncle Tian Muzhuang replied.

"Boil?" Tian Limai didn't understand.

"After the nitrate is boiled, it can be made into gunpowder!" Uncle Tian Muzhuang explained.

Tian Limai understands now, he is in the first year of junior high school, and the history teacher has talked about this!

There were many stoves along the way, and after walking about 500 meters, Uncle Tian Muzhuang stood up and said, "Wrong, Tian Limai, let's go back!"

"Uncle, in fact, there is nothing wrong or right in this cave, there is such a large area of boiling nitrate, you can also learn about the history of gunpowder manufacturing in modern times, you can also understand the activities of modern people in this cave, and explore their footprints, maybe it will be more attractive for those adventure tourists!" Tian Limai said.

Uncle Tian Muzhuang pondered for a moment, nodded and said, "Yes, then let's go and bring your Junwen brother and them in!"

Tian Limai and Uncle Tian Muzhuang turned around and came back to pick up Liu Junwen, Gu Feifei, Yang Tingting, Luo Sisi and Sun Junli, and Uncle Tian Muzhuang said: "Our original plan was not to see this fork hole, but Tian Limai said that this is a hole when you come in, you can see it, then we will look at this fork hole!"

Liu Junwen and Gu Feifei looked at the stove that was boiling nitrate all over the cave, and they couldn't help but ask again like Tian Limai, and the eldest uncle Tian Muzhuang explained again.

"Uncle, we can imagine that if these stoves are in the same era, I don't know how lively the scene should be!" Gu Feifei said.

"According to the old generation, since the Yuan Dynasty, we have implemented the Tusi system here, and the imperial court has assigned each toast a task of boiling nitrate, and the Ming Dynasty has followed this system, and the assigned nitrate task is heavier, of course, if you complete the task of boiling nitrate assigned by the imperial court, and hand over the task to the imperial court, you will get many rewards from the imperial court!" Uncle Tian Muzhuang said.

There is a distance of about two to three kilometers are the stoves that boil nitrate, those stoves are very unevenly distributed, some are three or two connected together, some are independent stoves, independent stoves are the majority, at most five stoves are connected together, but it is very few, the distance of two or three kilometers is only one, it can be seen that the production state of people at that time, most of them were single, and there were very few joint ones!

After walking through the spectacular boiling scene, and further on, there were piles of dirt piled up everywhere in the wide hole, Gu Feifei followed behind Uncle Tian Muzhuang and asked, "Uncle, this pile of soil seems to have been piled up artificially, is this soil any use?"

"Oh, these are the nitrate, the process of boiling nitrate is to collect nitrate first, and then soak the nitrate in water and filter, and then boil the filtered water in the pot to dry, so that there is nitrate, and then mix it with charcoal, put it in the scoop, and then mix it into gunpowder!" Uncle Tian Muzhuang explained.

The group then walked forward about 500 meters, and saw that the hole in front of them was full of stalagmites, and Uncle Tian Muzhuang said: "In the past, the old generations said not to enter the hole of boiling nitrate at will, and thought that there was any taboo, it turned out that this hole was so good-looking, and the old people were really well-intentioned, for fear that people would come in and damage these!"

The stalagmites seen at this time are very different from those in the hall I saw before, most of these stalagmites stand independently, some are tall and big, some are stout and low, and some are uniform in thickness up and down, the difference is not big, I can't see the bottom at a glance, I don't know how long the cave is!

"Uncle, judging from the scene of boiling nitrate we saw before, there should have been many people in this cave in modern times or beyond, so why haven't those stone flowers and these stalagmites been damaged at all, and why is this?" Gu Feifei asked by shining a flashlight on a thick stalagmite.