Chapter 224 Turn Over!

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"How to save and how to save?" Everyone around was also curious.

Hong Dali pointed to the scratches on the ground and said: "Look here, everyone. This should be the place where the big tortoise rested before. This is always true. But it is lying on the bottom now. What does this mean? It means that the place where the tortoise was originally There should be water, but for some unknown reason, the water suddenly disappeared, it was originally swimming in this underground lake, and then accidentally turned over..."

"Well, it must be like this!" Everyone agreed.

"And then?" Tang Muxin asked.

"Then, I have to ask Hatsune." Hong Dali smiled and took the diving equipment from the dog's leg: "There must be an underground lake connected to it, I remember seeing it before! So what we need to do now Yes, first go to the underground lake to check the situation, and then come back and make a detailed plan!"

This can be said to be the most feasible method at present. Everyone looked at each other and nodded at the same time: "Then do this!"

Going back the same way, Hong Dali and the others returned to the big snapping turtle again, and Hong Dali patted the big snapping turtle again with a smile on his face: "Big turtle, hey, we'll save you after a while, Don't be in a hurry!"

"Ang—" the snapping turtle made a statement.

"Okay! Understood!" Hong Dali snapped his fingers: "Then let's start now. Me, Brother Huihui and Hatsune, let's go down and have a look. The others stay here to contact you at any time."

"Dali, don't take risks!" Tang Muxin said anxiously.

"Don't worry! I'm very good at swimming!" Hong Dali replied with a smile.

Because there are only three sets of diving equipment, only three people can go down. Hong Dali, Lin Chuyin, and Mu Huihui immediately searched for corners to replace diving equipment. After the replacement, Lin Chuyin handed over a communication device to Tang Muxin. Indifferently said: "Contact device, call at any time."

"Okay...Okay!" Tang Muxin nodded fiercely.

"Wow ha ha ha! Then let's go into the water!" Underwater adventure, here I come!

Speaking of which, the diving device made by Lin Chuyin is indeed quite powerful.

On the back is the oxygen system. Enough for a person to breathe underwater for thirty minutes,

At the same time, because of the existence of the sci-fi-style helmet, it is possible for the three people to communicate underwater. As the strongest tech geek, Lin Chuyin chooses physical line communication equipment underwater, which can effectively avoid signal communication. interference.

So after Hong Dali and the others got into the water, there was basically no difference from what they were on land, the only difference was that the water pressure was slightly higher, which made it a little difficult for people to breathe.

The three of them dived all the way down, and it didn't take long before they touched the bottom of the pool. The water is not too deep, but you are in the water. But I can feel that this water is not stagnant water. But living water. Occasionally there are some small fish and shrimps in the water. When they saw the light, they all swam over curiously.

"Everyone, be careful," Mu whispered back, "It seems to be connected to an underground lake. Be careful of any unknown creatures in the water."

This animal has a saying that it is easy to get close to monsters when it lives a long time. He saw the tuna weighing more than 800 kilograms salvaged from the sea a while ago. How heavy is it, it is not too much to say that it is a monster.

This underground lake has not been discovered for many years. It is really hard to say if there is anything in the water.

"Enn," Hong Dali agreed, and then used the underwater lighting device in his hand to look around: "It seems very deep here. Hatsune, can you calculate the approximate depth in meters? By the way, how long can we dive for? "

Lin Chuyin's voice came quickly: "If calculated according to the consumption of the compressed air bottle, the volume of the compressed air bottle I prepared is 15 liters, and the diving time = [air bottle volume (liter) (inflation pressure - signal valve indication] pressure)]/[gas consumption per minute at normal pressure (1+0.1 diving depth)0.098]."

Hong Dali said frantically, "That. Hatsune, just tell me the result, I don't understand it at all!"

"Well," Lin Chuyin quickly calculated: "0.098 is the density of fresh water. Generally, an approximate value of 1 is used, which is negligible. 1 refers to an atmospheric pressure on land. Currently, diving for two minutes consumes nearly one-fifteenth of the Compressed air, if calculated according to the formula, we can still dive for 27 minutes, and the current water depth is close to about 16 meters."

Hong Dali nodded and said: "Well, the depth is about 16 meters, and it takes 27 minutes. That means we can only go forward for 15 minutes at most before we have to go back, right?"

"Well, yes." Lin Chuyin said: "According to the map I deduced, we need to continue to walk another 20 meters, and then we can see the interface of the underground lake."

"That's good, that's good." Hong Dali suddenly laughed loudly: "Wow, what a big fish!"

At this time, in front of Hong Dali was a huge carp that was more than one meter long. Mu looked back and said with a smile: "I said there must be a big guy in here. Such a big carp must weigh fifty or sixty catties." ?”

"Definitely!" Hong Dali took a picture to the side again: "Look, there are also there! They are all very big! This has to live for many years, right?"

He was yelling over there, but Lin Chuyin suddenly said: "The direction of the water flow is correct. It has already passed the bottom of the cave. The terrain is upward. The water pressure is a little weaker than before. There should be some new discoveries ahead. "

You must know that although the water looks ordinary, the deeper it is, the more amazing the water pressure will be, and the shallower the water pressure will be weaker.

Lin Chuyin's body sensing is as accurate as a machine, so she must be right.

The three of them immediately increased their speed and walked forward all the way. Suddenly, the water pressure in front and above dropped suddenly. Hong Dali was overjoyed, and was about to continue to float, when suddenly there was a "bang", and his head hit a big rock.

"Ah, this damn big rock killed me!" Hong Dali yelled.

"This is..." Looking back, Mu stretched out his hand and slowly touched the stone. Not long after, he suddenly touched a small hole. The water in this underground pool has not dried up for so many years. Penetrating through the holes little by little.

"It's this big rock that blocked the water source!" Mu turned his head and shouted quickly: "As long as we get this big rock out of the way, the big turtle will probably be released!"

"Really?!" Hong Dali said in surprise, "Did you blow up this big rock?"

"Well, not yet." Lin Chuyin thought for a while, and said, "If the stone is blown up, the water will be very strong. We must go out first, otherwise we will be washed to death by the water."

Once the stone is blown up, the underground lake on the other side will be under pressure, and there will inevitably be an extremely strong water flow. If there are more stones or something, it will kill several people-the most important thing is that there is no explosives... …

"Go back first, I'll ask someone to bring the compressed air bottle and underwater explosives over!" Now that there is a solution, there is no need to hesitate, Mu looked back and said with a smile: "Sure enough, it's better to be lucky with Master Dali."

Can it be bad? When he came back from Hong's Manor, he bought two scratch cards and won more than 200 yuan...

Returning from the original underwater path, as soon as he got ashore, Hong Dali ran to the big snapping turtle and said excitedly: "Hahaha, big turtle, we can rescue you! Hahaha!"

"Ang--" The snapping turtle let out a cheer as if it understood Hong Dali's words.

Immediately, Mu looked back and began to contact the engineers outside. Soon, the compressed air bottle and underwater remote-controlled explosives were delivered by special personnel. It was a very delicate device, connected with a remote control wire of about 200 meters. Just put the device under the big rock and click it, and then press the button, and the big rock blocking the water source can be blown to pieces with a "boom".

"I'll go!" Mu looked back and took the underwater explosives, and said, "I'll go by myself, and I can blow it up when I come back."

"Okay! Then I'll help you watch, haha."

Mu looked back and immediately dived again. This time he was very familiar with the operation, but returned in about 20 minutes, and smiled as soon as he landed: "Okay, the installation has been successful, let's quickly find a place to stay, or it will explode in a while. We're all drowning in it."

"Then everyone go out first," Hong Dali suggested: "After the big rocks are blown up, let's come in again according to the situation, so we don't all get drowned here."

Speaking of which, Hong Dali patted the big turtle's shell again, and said with a smile on his face, "Big tortoise, the flood will come in a while, and you have to turn over by yourself!"

"Ang--" Da Gui let out another long whistle, and agreed.

Hearing Dagui's promise, Hong Dali led his people and ran out immediately, excitedly saying while running: "Then let's get ready, hahahaha! Dagui, let's see Brother Dali save you!"

After Hong Dali and others retreated along the original road, Hong Dali took a deep breath, and then pressed the button of the remote control bomb in his hand hard!

"Boom--"

There was a dull explosion sound from inside the mountain, and then in the picture taken by the flying device left in the cave, the small lake in the cave seemed to be completely normal, and bubbles began to bubble out in the middle of the lake.

"Big turtle, get ready, the water is coming soon!" Hong Dali looked at the screen of the laptop, worried.

"Wow--" The water from the underground lake on the other side poured back, under the huge water pressure, the impact force was so huge, there was a loud bang, a water column shot up into the sky from the center of the lake, and shot directly at the carapace of the snapping turtle. Above, one inch, two inches, one foot, two feet, one foot, two feet!

The water flow here hits the giant tortoise's carapace, and the lake water over there pours into the entire cave, and the lake water has grown to a height of more than one meter in a blink of an eye!

"Wow!" The power of nature was right in front of our eyes. Hong Dali and the others were stunned and opened their mouths to exclaim!

"Boom--" The buoyancy in the water was together, and the giant water column over there rushed, and the body of the giant snapping turtle, which was tens of thousands of kilograms, really stood up slowly, and then the mountain was shaken with a "boom" In the middle, the gigantic body of the giant tortoise really turned upside down! (m)