An excavator actually sank in the deep pool of the deserted mountain village. This is really incredible. How did the excavator come in and how did it sink into the water?

Everyone walked up the shore to watch. The excavator had been in the water for a while, and many parts of the fuselage were mottled and rusty. The glass in the cockpit was intact, and you could see that there was no one inside.

"It's so strange!"

Zi Yang took off her shoes and socks and wanted to wade into the water to watch, but Su Rui grabbed her.

"Be careful, the water is very deep here!"

Because the pond water is very clear, the actual depth of the water is much deeper than it looks. This excavator looks not far from the water surface, but is actually about ten meters deep under the water.

"I discovered this excavator when I first arrived here, and I didn't investigate it carefully at that time. After Professor Zhang took over, he once seconded a Z-8 heavy helicopter. I guess this is the equipment that Professor Zhang and his friends later transported it." Jin Guoqiang stared at the excavator in the water and said in a deep voice.

"I see that the water here has expanded a lot more than when we came last year. Could it be that Professor Zhang and the others dug it?" Zi Yang turned around and asked.

Jin Guoqiang shook his head: "Unlike, there is no digging of earth around. The water surface changes because of the rise in water levels. There are many strange things about this excavator stopping here. Look at where you see!"

Following the direction of Jin Guoqiang's finger, you can see a winch installed in the front of the excavator. A steel cable as thick as a thumb along the winch extends straight towards the center of the pond water. Because the light in the depths of the water is very dark, this black steel cable blends into one with the surrounding water quality, and is blocked by the huge fuselage of the excavator, so it is difficult to find this steel cable without looking carefully.

Su Rui looked carefully and frowned and said, "The excavator seems to have been dragged down."

Jin Guoqiang also nodded: "From the soil level below, there was no water in the excavator where it was originally located. It should have been dragged down for a distance. In addition, the water level rose, so the excavator was flooded in deep water."

Zi Yang looked carefully and found that there were two shallow grooves about ten meters long on the slope at the rear of the excavator, which should be the sliding marks dragged out by the tracks.

"Strange, what's in the water that can drag an excavator weighing about ten tons so far?"

It can be seen that the excavator was originally located at a relatively flat position, and it shouldn't have been slipped in "accidentally".

Jin Guoqiang looked up and squinted his eyes and looked around. There was no other sound except the rustling sound of the wind blowing the reeds. The two rivers in the east and west of the pond were also as calm as a mirror, and the flow of water could hardly be seen.

"Don't you find it strange that there are no large amount of fish in such a large pool?" Jin Guoqiang said softly: "From the situation on the scene, Professor Zhang and his team should have temporarily terminated the investigation, and the excavator was thrown into the water, which means that they were retreating in a hurry."

Zi Yang scratched her head and said, "It's indeed a bit strange. Is there something strange in the water?"

Jin Guoqiang stared at Zi Yang with his eyes: "Do you still continue to detect the pool?"

Zi Yang swallowed and looked at Su Rui hesitantly, "I've come here..."

Su Rui nodded and said, "Let's go to the shallow area to detect it tentatively first. If the situation is abnormal, we will stop diving. I will go down with Zi Yang. Captain Jin, please help us monitor it. Is it okay?"

Jin Guoqiang sighed and said helplessly, "Okay, since you insist, I have no objection."

Su Rui nodded and dragged his equipment to change his clothes among the reeds. After a while, Su Rui, wearing a diving suit and carrying an oxygen bottle, walked out of the reeds.

With the help of Jin Guoqiang, Zi Yang also changed into a diving wetsuit.

Su Rui handed a walkie-talkie to Jin Guoqiang, "Our wet suit has a built-in telephone, which can enable three-party calls. After we go down, we will notify us in time if there are any problems." Jin Guoqiang nodded, "Check the equipment again to see if there are any omissions."

In order to take care of Zi Yang, a half-baked diver, Su Rui prepared a cover mask this time, which can cover all the faces. Wear it, the diver can breathe with his mouth and nose like on land, avoiding the incongruence of mouth and nose breathing for beginners like Zi Yang.

Zi Yang and Su Rui checked each other's diving equipment again. After confirming that there was no problem again, Su Rui seriously reminded Zi Yang: "If you need to dive deeper later, you must abide by several principles: the first is the principle of two people walking together. If there is no special situation, we must be together; second, keep in touch at any time, and if you are alone, stay calm and wait for me in place."

Zi Yang nodded, and Su Rui continued: "There is another important point. You cannot stay in deep water for too long. If the diving depth exceeds 40 meters, you must decompress the pressure. You cannot float up too quickly. Stay at 10 meters and 5 meters respectively. When floating, try to drain the air in your lungs, otherwise your blood will boil like beer and foam."

Zi Yang swallowed and looked at Su Rui and Jin Guoqiang with a little panic. He had already thought of giving up. But he had already reached this point, and it was too late to regret it. Now he had to bite the bullet.

Su Rui saw that Zi Yang was a little nervous and comforted him and said, "Relax a little and listen to my instructions. If the telephone is malfunctioning, we communicate with gestures: OK, which means that I am in good condition now; if you want to remind your teammates to pay attention to a certain direction, use your index finger to indicate it; float up, clench your right fist, and your thumb up; dive down, clench your right fist, and your thumb down."

Zi Yang nodded repeatedly.

"If it's okay, let's dive."

Su Rui stood in the water, bowed two handfuls of water and applied it to Zi Yang's face to help him adapt to the water temperature.

Both of them wore full-body covered wetsuits, which can maintain body temperature in deep water without worrying about the rapid drop in temperature in deep water. Diving is a test of technology and physical fitness, but the most important thing is psychological factors.

"Hey, we have started climbing the mountain. Where are you?"

The sound came from Zi Yang's backpack on the shore, and Lao Wang was greeting them.

Zi Yang walked over and took out the walkie-talkie, "We're at the foot of the mountain, too - stop talking when it's okay, waste electricity!" Zi Yang put the walkie-talkie in his bag again and looked at Su Rui and Jin Guoqiang, "Let's go!"

The two of them put on their masks and walked slowly into the pool, but soon they were in the water.

Xiao Hei stretched his neck and looked at the water, then looked at Jin Guoqiang, with the expression on his face both confused and worried.

Jin Guoqiang patted Xiao Hei on the shoulder and signaled him to relax. The two of them sat on the shore and stared at the two black figures in the water swimming towards the excavator.

Zi Yang and Su Rui swam to the excavator and saw that the cab was empty and the steel cable installed on the front winch had already moved to the bottom. Su Rui pulled down the straight steel cable with his hand and found that the steel cable was not moving at all, and it seemed that there was something heavy falling from below.

The other end of the steel cable penetrated into the center of the pond water. The water quality there turned blue-black because the sunlight could not be exposed to it, forming a black disc at the bottom of the pond. I wonder how deep it was below.

Su Rui tied the yellow guide rope to the excavator and said in the telephone: "We are ready to dive deeper along the cable."

"Okay, pay attention to safety." Jin Guoqiang said on the shore.

The two swam along the steel cable to the center of the pool. As the depth increased, Zi Yang obviously felt that the water temperature dropped rapidly. Su Rui turned on the light on the diving suit to illuminate a few meters in front of him, and the center of the pool was still bottomless.

"Follow me, we slowly descend. Tell me in time if you have any questions." Su Rui said softly.

"Okay, OK, no problem." Zi Yang made a gesture and tried to put the voice down as smoothly as possible to conceal his nervous mood.

The steel cable started to descend straight when it reached the center of the pool. The two of them slowly dived down the rope. Zi Yang looked at the pressure gauge on the diving suit, which showed 15 meters, 18 meters, and 21 meters...

Following the lights on the wet, you can see the steep cave walls around you, and the deep part of the pool was a straight cylindrical shape.

When it fell to more than 30 meters, it was still so dark that it was invisible below. When I looked up, I saw that there was only a white and shiny disc left on the water.

When the counter showed 40 meters, Su Rui stopped: "This depth is already the limit for you. If it is deeper, it needs to be phased decompression. The operation is more complicated. If you stay here, I will look down to see the situation."

"Or, let's go back now. I see that it seems to be very deep below, and I can't see the bottom for a while." Zi Yang was a little panicked.

"Su Rui, safety is the first priority, don't force it." Jin Guoqiang also said in the phone.

"It's okay, I've received professional training, so there's no problem with this depth. Zi Yang, wait here." After Su Rui finished speaking, he went downstream without waiting for the two of them to answer. After a while, the lights on the diving suit disappeared in the deep water.

"Su Rui, how about it below?" Zi Yang couldn't see Su Rui's figure and couldn't help but feel nervous again.

"Relax, breathe slowly." Jin Guoqiang said slowly in the walkie-talkie when he heard the strangeness in Zi Yang's voice.

In this kind of underwater space similar to a closed person, a person is prone to suffocation, and Zi Yang's breathing has begun to become rapid.

"I'm fine." Su Rui's voice finally came from the telephone again, "The water depth here has reached 68 meters. It's strange, I still can't see the bottom--Huh..."

There seemed to be a noise in Su Rui's phone, and it suddenly broke after a few sizzling sounds.

"Su Rui, Su Rui!" Zi Yang couldn't help but shout.

"What's going on?" Jin Guoqiang also said on the shore.

"Su Rui's call was disconnected. Maybe he encountered an unexpected situation. I, I want to go down to find her!" Zi Yang almost shouted.

"No, you have not received professional training and cannot dive deep! There will be dangers when going down!" Jin Guoqiang ordered on the shore.

"But...what should Su Rui do?" Zi Yang said anxiously at the dark pool under her feet.

"Wait a little longer, maybe it's just a phone malfunction." Jin Guoqiang tried his best to comfort Zi Yang with a gentle voice.

Zi Yang looked at the diving watch in his hand anxiously. One minute or two minutes passed, but there was still no movement below. In Zi Yang's mind, these two minutes seemed to be as long as a few hours.

Zi Yang finally couldn't wait any longer and said to the phone: "I'm going down!"

Just as he loosened the guide rope and was about to dive, he saw a ray of light suddenly appearing below. The light below the pool gradually became clear, and Zi Yang saw Su Rui slowly floating up from underwater.

When he arrived in front of Zi Yang, Su Rui clenched his fist with his right hand, pointed his thumb up, and made a floating gesture.

The two of them slowly rose, and after staying at different depths and decompression, they finally slowly surfaced.

The two took off their masks, Jin Guoqiang and Xiao Hei came over and helped them to the shore.

"Su Rui, are you okay? Why did the communication suddenly break just now?" Zi Yang said looking at Su Rui's face.

Su Rui tilted his head and wrung the water from his wet hair, "I'm fine, the phone has malfunctioned. When he dived to about 70 meters just now, he seemed to see the ground, but my gas cylinder was about to run out, so I had to come back first for safety."

Jin Guoqiang nodded: "Well, the more you go down, the greater the consumption—by the way, before the call was interrupted, you seemed to have a question, have you found anything?"
Chapter completed!