After a slight tremor, the cave fell into silence again.
In the middle of the crowd, the green cell phone screen was always on.
No one cared about the electricity consumption. On the day they were trapped, Zuo Yu, who was independent and capable, asked everyone to count all the cell phones and power supplies together.
Nine cell phones, six power banks.
The cell phone was the hope of external communication. Zuo Yu turned off the remaining eight cell phones, leaving only one to send an emergency call every half an hour.
Unfortunately, Zuo Yu overestimated her and her companions' physical fitness. They only lasted for two days in the dark and fell into a state of collapse. During this period, some people cried, some sobbed, and some people knocked their heads on the ground and shouted for help.
Now they were waiting for death in complete despair. Even if someone wanted to shout, they didn't have the strength to do so.
When she woke up again, Zuo Yu touched the cell phone with the bright screen and looked at the time.
Only twenty minutes had passed.
She felt that her body was getting heavier and heavier. It seemed that the air around her was injected with glue. Even breathing became a little laborious and hot.
It seemed that they would be suffocated soon.
Zuo Yu thought that this should be good news.
…
5: 20 in the morning.
It had only been fifty minutes since the departure of the two Banshee aircraft from Monster Industries.
At the entrance of the four-star hotel outside the Anya geological scenic area, a figure stumbled over.
The two security guards were shocked. They thought it was someone who had drunk all night and came over to be drunk. They were just about to stop him, but when they saw who it was, they were stunned.
It was the deputy county magistrate.
The deputy county magistrate of Anya County rushed all the way. When he entered the elevator, he kept patting the elevator floor number, hoping to go faster. When he reached the fifth floor, he started banging on the door again. "Dong, dong, dong ~"
From 0501 to 0518, guests opened the door one after another.
If ordinary hotel guests encountered this scene, the deputy county magistrate would probably be pressed to the ground and beaten by the irritable male guests.
Because many of the people who opened the door were a man and a woman.
Their eyes were red and they looked very haggard. Seeing that it was the deputy county magistrate who was banging on the door, these guests' legs were weak for no reason and they didn't dare to ask a word.
Soon, the guests on the entire floor ran out. They were all relatives of the nine missing college students.
Faced with dozens of pairs of eyes, the deputy county head's hands kept trembling.
Half of it was because of the pain from smashing the door, and the other half was because of excitement.
He took a deep breath and shouted to everyone, "We've found those students!"
"Found it!"
"Gulp ~"
As soon as he finished speaking, at least five female family members slumped to the ground.
The male family members held onto the wall as tears streamed down their faces. They trembled as they asked, "How are the students? Are they safe?"
"Right now, we only know where they are trapped. We don't know the exact situation yet." "Of course, I think the situation is optimistic. Monster Industries can help us find the students in less than an hour."
"This has bought us precious time for the next step of the rescue work. Now, I need all of you to go to the rescue command center and collect the physical data of your children."
"We need to know their blood type, whether they have any drug allergies, chronic diseases, or food allergies."
The commotion on the fifth floor quickly attracted most of the guests upstairs and downstairs.
The hotel next to the scenic spot was only full during the peak tourist season. Now that it was the rainy season, the people staying in the hotel were either family members of the missing students or reporters who had been waiting for news.
Soon, the whole hotel was in an uproar.
Happiness came unexpectedly. Some of the reporters were in their rooms rushing to write. They hadn't even released the news that Monster Industries' aircraft had set off.
When they came, only the deputy county head was with them. When they left, they took up half of the hotel.
These people braved the wind and rain and came to the scenic spot together.
It wasn't just the people in the hotel.
When the deputy county head learned that the students were trapped in a cave, he immediately contacted the county head.
The county head was now asking for help from the city. It wouldn't be long before the geological experts and the prospecting engineering team from the city returned.
When Ye Qing detected the cave on Hunchback Mountain, he asked Captain Wang Chailong to call back to report.
According to the results of the vibration detection, the cave on Hunchback Mountain was about 400 meters long. The cave was winding, and the highest part of the cave was three meters. The narrowest part could only allow an adult man to bend over and squeeze through, and he couldn't be fat.
If there was a cave, there must be an entrance. The nine students couldn't have teleported into the cave for no reason.
However, according to the results of the second vibration detection near the cave after changing the detector firing device, the cave didn't have an exit.
The end of the winding passage was solid, and it was about three meters thick.
Ye Qing followed the search team through the forest and came to the top of the cave. They saw a murky lake. Around the lake, there was water flowing continuously from the mountain into the lake.
"What's going on?" Captain Wang Chailong stood beside the cliff that was more than ten meters high. He jumped three feet high and shouted, "I remember that there shouldn't be a lake around here in the original aerial map of the scenic spot."
Ye Qing looked at the lake that was half the size of a football field. He said seriously, "Where's the aerial map? Send it over immediately."
The Nighthawks had their own satellite network. The scenic spot quickly sent over the aerial map that was taken two years ago in autumn.
The resolution of the aerial map wasn't high. The one that found Hunchback Mountain didn't seem to have a cave.
However, it could be seen that this place was originally a concave valley. The size of the valley just happened to correspond to the lake.
With the aerial map, Ye Qing and the search team members could reasonably guess what had happened here a few days ago.
The nine students must have been hiding in this small valley or a cave to take shelter from the rain. Then, there was a flash flood. The flood, along with boulders and sand, blocked the entrance to the cave and flooded the valley.
Twenty minutes later, the Nighthawks landed on the side of the cliff with the deputy county head and a geologist from the county.
Braving the heavy rain, the deputy county head stretched his head out to look at the murky lake. His legs turned to jelly as a basin of cold water drenched him from head to toe.
"It's over, it's over." The geologist wasn't any better. He held the map that Ye Qing had taken of the interior of the mountain and looked at it for a long time.
"How are we going to save them?"
"The water below is as murky as a hundred tons of cement. Would any diver dare to go down?"
"Even if he dares to go down, he won't be able to see anything. He won't be able to clear the mud."
The geologist was panicking. He saw the search team take out a satellite phone and borrow it to call a university professor friend. He asked him how many cubic meters of air an adult needed to breathe in a day.
It wasn't difficult to calculate the oxygen consumption in an enclosed space. Taking into account the oxygen consumption, the increase in the ratio of carbon dioxide to oxygen consumption, and a person's normal tidal volume and breathing rate, the answer could be obtained based on the size of the cave.
The geologist calculated the approximate size of the mountain and added in the formula given by the professor.
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