The lantern was given to us by Li Tiecheng from the Huangnijing Vegetable Market. He had something to do and left that day. He said he would come back to us after finishing his work in about four days.
This round flashlight has a waterproof cord that can be used as a headlight strap by pulling out the cord.
Dou Sprout tied up the lamp and moved his body. He turned around, took two deep breaths, pinched his nose with one hand, and jumped into the pond with a pop.
The water was not clear, and soon the bean sprouts were no longer visible, but the faint flashlight light could be faintly seen under the water.
I looked at the watch, and the time passed minute by minute. Several minutes passed quickly. I saw that the bean sprouts had not come up yet, and I was a little nervous.
Uncle Xue comforted me and said, "Don't panic. I think he is an expert in diving. I'm waiting."
"puff!"
As soon as he finished speaking, the water broke out.
He gasped loudly, wiped the water from his face, waved his hand towards me and shouted: "Fengzi! This pond is much deeper than I thought! It is estimated to be almost 20 meters deep! The bottom of the water is full of mud.
!I seem to have seen a black hole!”
"Black hole? What do you mean?"
"Wait a minute! I didn't see clearly just now!
"Let me change my breath, I'm going to dive down and take a look!"
"Be careful!" I shouted.
Dou Sprout splashed twice in the water and gave me an OK gesture with a smile.
He took two more breaths to hold it in, then with all his strength, he dived like a fish.
"Good water skills, as expected of someone who used to be a sailor," Uncle Xue couldn't help but praise Dou Sprout Zai after seeing it.
Uncle Xue said that ordinary people can only hold their breath for about one or two minutes. Anyone who takes more than two minutes is considered powerful. Bean Sprouts can hold his breath for seven or eight minutes, but this is not his limit.
I'm not good at it. I practiced in a swimming pool for a while in Yinchuan, and I only learned how to paddle with a dog and kick with a toad. There was a swimming pool in the backyard of the villa where Xiaoxuan lived, and her water skills were pretty good.
Four or five minutes passed.
"Coming up, coming up," I saw the light of the underwater flashlight moving upwards.
Dou Sprouts broke out of his water. He was all wet. He held something in one hand and shouted, "Look! Look what I found!"
"Clay statue? Taoist statue?"
I took a closer look and saw that it was really a statue of a Taoist priest! Why did it fall into the pond?
Dou Sprout swam over holding the clay figure high.
"Here, go on."
I reached out and took it.
This Taoist statue in Zaizai Temple sank under the water for some reason. When I picked it up, I found that it had cracked due to soaking and was a little sticky when I held it. The original cinnabar on the clay statue had almost been lost by the water.
Dou Sprout splashed twice in the water and said loudly: "What's up Fengzi! I told you I didn't steal it! I don't know who stole it! I threw it into the water!"
I said I know, come up quickly, why are you still soaking in the water?
"Wait! I'll be there next time."
Dou Yazai pointed to the water and said: "There is a deep hole at the bottom of the water. I don't know what's going on. I was fishing for the clay figures just now and didn't bother to take a look. This time I swam closer to take a look."
Before I could say anything, Dou Sprout dived again. This was already his third dive.
I wiped the Taoist statue and stood aside, staring nervously at the water. It was almost ten o'clock in the evening.
"Huh? What's going on?"
"Look, why is it starting to bubble again?" Uncle Xue suddenly frowned and pointed at the water.
When I saw it, it was really bubbling upwards in the middle of the pond, and the bubbling was getting more and more intense, just like boiling hot water.
I shouted twice to Dou Sprout, but there was no response. He took the longest dive this time. We waited on the shore. Not only was I nervous, Master Xue was also a little nervous.
"Master...Uncle Master, do you feel a little dizzy?"
"It seems that I really feel something." Uncle Xue shook his head.
This feeling of dizziness came on very quickly, even very quickly, and then I suddenly felt a tightness in my chest, my body went limp, and I fell into the pond with a plop.
The water was very cold, and I was still somewhat conscious, but I couldn't hold my breath when I wanted to. Uncle Xue saw that I had fallen into the water and reached out to catch me, but he also fell into the water with a pop.
I drank several large gulps of water in a row, and my legs lost strength and began to sink.
In the last few seconds of consciousness, I vaguely saw a huge toad underwater, wearing red underpants and swimming towards me.
...
"Wake up! Wake up! Mineko!"
My eyelids were heavy and my head hurt. I slowly opened my eyes and saw several familiar faces.
Xiaoxuan held my hand and asked in a panic: "Yunfeng, how are you feeling? It's scary. Your face was almost turning purple before."
My headache was so severe that I struggled to sit up and leaned on the bed.
Thinking of the previous scene, I quickly asked: "Where is Master Xue!"
Xiaoxuan looked distressed, grabbed my hand and said softly: "Don't panic, he hasn't woken up in the east room yet, it was Dou Sprout who carried you back one by one."
I woke up in the afternoon, and Master Xue didn't wake up until the evening. His symptoms after waking up were the same as mine, with a headache and general lack of energy.
Bean Sprouts stood by the briquette fire, holding a bowl and saying: "Fengzi, you two are scared to death. If I hadn't been good at water, you would have almost drowned, you know?"
I put a hot towel on my head and half leaned on the bed and asked, "Yazi, what happened before? Uncle Xue and I both felt dizzy. Why are you okay?"
Dou Sprout took a mouthful of noodles and muttered, "I don't know, I keep holding my breath. Is it because of this?"
"There is no doctor in the village, so I drove the whole night to get a doctor from Yongzhou. The doctor said he would call him when you wake up, so I drove him back again. He should be back soon."
"What did the doctor say?"
Xiaoyuan helped me change the towel on my head and said, "Do you still have a headache?"
"The doctor said you had acute carbon dioxide poisoning. Fortunately, the inhalation time was short. The doctor told you to drink this medicine when you wake up. He also said that if you still feel a headache within two days, you should go to the high-pressure chamber of Yongzhou City Hospital to inhale oxygen."
The pills Xiaoxuan asked me to take were mannitol and a few bags of some granules. I didn’t understand why I had carbon dioxide poisoning, or if it was something acute. If Douyazai hadn’t brought it back, Uncle Xue and I would be dead.
Could it be that...that villager had the same experience as me before? No one discovered him for a long time and he was not rescued?
In the evening, I hurried back with my head.
Seeing that I woke up as the doctor said, he breathed a sigh of relief and asked what happened.
After discussion, we finally came to a conclusion:
Regardless of who stole the Taoist statue, 80% of the reason why we get dizzy and suffer from carbon dioxide poisoning is related to the black hole under the pond.
Bubbly water means there is energy.
If a large amount of carbon dioxide rises up from the bottom of the water in a short period of time, and there is no time to evaporate, and we happen to be standing on the shore very close to the pond at the time, it is indeed possible for acute carbon dioxide poisoning. This conclusion is straightforward.
In this way, the villager was not scared to death, but just like us.
Dou Sprout recalled that around 10 o'clock, he dived to the bottom of the water and wanted to get closer to the black hole to take a look. As a result, before he got close, he felt air flow coming out, and at the same time, bubbles began to form in the water. Dou Sprout felt something was wrong and prepared to surface.
, at this time Master Xue and I fell down again.
The big toad I saw before I fell into coma was mistaken. It was Dou Sprout wearing red underpants.
We have encountered the first problem.
Where does the black cave under Guizailing Reservoir lead to?
Why do large amounts of carbon dioxide emerge from underwater at regular intervals? Where does this carbon dioxide, which is so high in concentration that it can cause acute poisoning of people, come from?
I couldn't figure it out at first.
Anyone who is good at chemistry can think about it.