The delicate morning sun has jumped out from behind the mountains to the east, overflowing with red glow, blending with the morning mist slowly rising in the valley, changing the halo of colorful colors. Li Tangshan and Mei Juan got up and found that Huang Shigong was no longer in the cave.

Li Tangshan saw that Huang Shigong left a letter for Li Tangshan and the two of them, which meant that he would also go out first to continue his study tour. didn't want to part with Li Tangshan and Mei Juan, and especially didn't want to see Mei Juan crying with him, so he left first, and he would see him again.

After Li Tangshan and Mei Juan had a simple breakfast, they walked towards the small lake. Take a small bamboo raft to the cave, under the stone wall is the river, the river is more than 5 meters wide, and the water flow is extremely gentle. The river flows from the channel at the bottom of the river to the outside world, and the bottom of the river constantly rises and tumbles with water patterns, and the river has an unfathomable feeling when viewed from the surface of the river.

There is no way ahead of the raft, and if you want to continue going, you can only swim from the bottom of the river and rush out of the outside world with the current. Although the length of the dark river is about clear, the depth is unknown, which is an extreme test of Mei Juan and Li Tangshan's diving ability. Due to the length of the dark river, it is impossible to come back after diving halfway through the dive, and it is impossible to hold your breath again. Swimming skills, Li Tangshan and Mei Juan are not lacking, what they lack is that there will be emergencies in the dark river.

Li Tangshan stood by the dark river and kept thinking, although he had done a lot of work in the early stage, he had never actually practiced it.

Looking at the water ripples that the dark river kept rolling and jumping, Li Tangshan nodded to Mei Juan and his heart sank, and decided to go down to the river first to see the situation in the water.

Li Tangshan and Mei Juan took off their coats and jumped into the water.

As soon as they entered the water, Li Tangshan and Mei Juan found that the situation was not right, there was a huge suction force in the water, and Li Tangshan, who was caught off guard, was suction and flowed towards the mountain wall channel at the end of the river. Li Tangshan, who found that the situation was wrong, quickly waved his arms with all his strength, trying to swim from the water to the bamboo raft.

The suction power in the dark river comes from the speed of the water flow in the channel at the bottom of the river, except for the tumbling water ripples on the surface of the river, it seems to be calm, but the channel under the mountain wall is narrow, the speed of the water flow is super fast, and the suction force generated is also large.

Waving his arms with all his might, but not swimming far to the bamboo raft, Li Tangshan knew that the price of wanting to swim back to the bamboo raft was too great. If you can definitely swim the bamboo raft regardless of everything, the muscles of your arms will definitely be seriously strained, and it will delay the progress of going out of the mountain, and it is also a question whether Mei Juan's physical strength can support it.

Li Tangshan turned his heart sideways, took a deep breath, pulled Mei Juan to suddenly turn over and plunge into the water, and swam quickly towards the passage under the mountain wall. At this time, Li Tangshan chose to gamble.

The speed of the water under the mountain wall is super fast, even if Li Tangshan is motionless, he will naturally follow the water flow quickly. In order to save time and ensure that the deep breath can rush out, Li Tangshan swung his legs and quickly moved forward along the current.

The light in the water was dim, Li Tangshan gathered his eyes to look forward, and suddenly a black raised rungs were in the middle of the passage, and at the moment of emergency, Li Tangshan stretched out his hands, swung his legs, adjusted the prone position to the side lying position, and pulled Mei Juan through the edge by a millimeter.

Li Tangshan, who passed through, was frightened, if the posture was adjusted a little slower, with the speed of the water flow and the speed of Li Tangshan, he would definitely break his head and bleed when he hit it.

Li Tangshan found that he had some difficulty holding his breath, so he pulled Mei Juan and quickly swam to the exhaust port of the gas supply management, close to the stone wall, the water flow was a little smoother, Li Tangshan quickly put his mouth against the pipe and changed a few breaths, and Mei Juan also learned from Li Tangshan to suck in a few breaths.

Li Tangshan also found a Huangshi Gong to leave a guide rope, and suddenly the upstream water flow speed accelerated, and the gas supply pipeline was broken by the water flow, and there was no way to continue the gas supply.

Soon found that Mei Juan's breath was not enough, and Li Tangshan poured the air in his mouth over Mei Juan. Li Tangshan found that the guide rope was also washed away by the current, Li Tangshan's first reaction was that it was over, and there was still a third of the way to the structure of the cave in his mind, in order to save time and ensure that this breath could be rushed out, Li Tangshan swung his legs and quickly moved forward along the current. Just when Li Tangshan felt that his breath was not enough, the passage widened, the front was bright, and the exit arrived.

Li Tangshan used both hands and feet, accelerated to swim towards the exit, and rushed out of the water after a while. Li Tangshan shook his head, and as soon as his vision was clear, a comfortable and beautiful scenery came into view.

The sky is blue like a wash, the semi-blank clouds are fluttering, the lake is sparkling, the shore is green grass, looking at the surrounding scenery, Li Tangshan is relaxed and happy.

With a wave of his hands, Li Tangshan pulled Mei Juan and quickly went to the shore. Standing on the shore of the lake, looking at it, the front is open, and the mountains behind are connected, although the scenery here is good, but Li Tangshan doesn't know where this is.

Li Tangshu found that Mei Juan no longer knew how much water to drink, Mei Juan's face was swollen and cyanosis, her eyes were congested with conjunctiva, her nose and mouth were full of bloody foam, her limbs were cold, her heart stopped beating and she died.

Li Tangshan immediately removed the sludge and weeds from Mei Juan's mouth and nose to keep her airway open. Quickly lay Mei Juan prone on her bent thighs, head down, and then pressed Mei Juan's back to force the water in her respiratory tract and stomach to pour out.

Li Tangshan said in his heart: "Mei Juan, you must not die. I've finally liked you, you can't leave me, otherwise what's the point of me living in this world! ”

Li Tangshan used his ears and cheeks to close to Mei Juan's mouth, nose, hearing, or feeling whether there was respiratory airflow, and C used his eyes to see whether Mei Juan's chest and abdomen were breathing undulating, but still did not see Mei Juan breathing, Li Tangshan immediately mouth-to-mouth or mouth-to-nose artificial respiration.

After Li Tangshan's professional training, he saw Li Tangshan pinch Mei Juan's nostrils with the thumb and index finger of one hand on Mei Juan's forehead to close her nostrils, take a deep breath, and then blow hard into Mei Juan's mouth until Mei Juan's chest is raised. After blowing once, inhale fresh air and blow a second time. Blow twice in a row. When Mei Juan's teeth are tightly closed, close Mei Juan's mouth, Li Tangshan then blows on Mei Juan's nostrils and opens her mouth when she exhales.

Li Tangshan still didn't see Mei Juan wake up, and cried loudly: "Mei Juan, wake up quickly, I can't live without you!" ”

Li Tangshan kept Mei Juan's head back with one hand, and the tips of the index finger and middle finger of the other hand slid along Mei Juan's throat to Mei Juan's carotid artery close to the rescuer's side, and gently pressed the carotid artery.

Li Tangshan lay Mei Juan on her back on the ground, Li Tangshan was located on Mei Juan's right side of the chest, pressed the lower half of the sternum with the palm of one hand, and pressed the back of the front hand with the palm of the other hand. Li Tangshan's shoulders are located directly above the patient's sternum, his arms are straight, his elbows are fixed, and the lower part of the sternum is vertically pressed downward by the weight of his upper body and the strength of his shoulder and arm muscles, so that he sinks 4~5 cm. Compressions should be smooth and regular, without interruption, and the compression time should be equal to the relaxation time. The compression speed is 80~100 times per minute. Li Tangshan blows continuously 2 times for every 15 compressions.