As winter approaches, the dawn water vapor of Bosten Lake condenses into mist, forming layers of white gauze on the surface of the lake, and the cormorant with poor eyesight stretches its wings lazily and waits for the sun's presence to wait for the sight to improve before leaving the nest to feed.

The temperature of Bosten Lake in the early morning was close to 14 degrees, and the four of them were naturally prepared, each of them had a big quilt, and the three people who originally planned to leave at six o'clock were stunned to cover the quilt for an extra hour. And Mu Xin, who couldn't sleep, couldn't stay up, and Mu Xin, who couldn't sleep at more than two o'clock after everyone fell asleep, got up and stayed on the boat for a while, and then turned into Yuan Qing's arms, and it was not heavy, and the tired Yuan Qing fell asleep with Mu Xin in his arms.

When Yuan Qing woke up at six o'clock, he found that Mu Xin was nested in his arms, and he didn't know when his hand was in Mu Xin's chest, and he suddenly fell asleep, a little nervous and a little expectant... But he didn't dare to act rashly, now Mu Xin is breathing evenly and is obviously asleep, if he wakes up and finds that... I guess I have to break my hand again.

I don't know if it's to cheer myself up or nervous, I took a deep breath and moved my fingers slightly... Ouch! The vacuum feels so good, and it moves slightly! Ouch! It's soft and comfortable. Just when he was about to continue to move, his face suddenly twisted, and he didn't dare to shout loudly, so he had to take a sharp breath of cold air, and the cold air hit his teeth only to feel that his teeth were sour, and he quickly closed his mouth again, and his face was red. Mu Xin felt that Yuan Qing didn't continue to stir before he let go of the hand holding his waist, and then twisted before continuing to crawl on his chest and continue to close his eyes.

After another hour of suffering in the early morning, Yuan Qing relied on the "bed" for ten minutes after Mu Xin got up, and then got up to wash up. At seven o'clock in the morning, the sun had already broken through the mist gauze and stretched her body, and the second daughter had already washed up, so she let Duowei drive the boat and prepare to enter the middle of the lake. Since Ludang Lake is half an hour away from the center of Bosten Lake, Yuan Qing began to make breakfast, and the four of them finished breakfast with the coordination of nearly eight o'clock before arriving at the center of the lake.

The lake water in the early morning was only about seven or eight degrees Celsius, and Yuan Qingmuxin didn't feel anything when he entered the water. But Zhao Ling was a little uncomfortable with goosebumps, the water temperature of Mu Xinhuang's body was just cool to her, and Yuan Qing didn't feel much coolness when she had water beads in her mouth. But Zhao Ling is different, the water temperature of seven or eight degrees Celsius is enough to make normal people feel the biting coolness, although there is a special material diving suit, but the skin on the exposed hands and ankles is like a needle prick, making her teeth begin to tremble. Mu Xin pulled Yuan Qing with one hand and Zhao Linggang with the other, and was about to dive to the bottom of the lake, when he felt that Zhao Ling's hand was trembling a little when he was clenching his teeth, so he stopped.

"Can it be done? No, why don't you wait for us on the boat with Duowei?" Mu Xin turned her head and asked Zhao Ling, who was pale and had purple lips.

"Wait a minute, the body needs to adapt to the low temperature. After Zhao Ling finished speaking, he put on his respirator and immediately swam around the fishing boat to get used to and warm up.

Yuan Qing nodded secretly when he saw this scene, although Zhao Ling was pampered, he was not a little squeamish, and said that he would go into the water. In addition, if you know the situation, you can calmly deal with the reaction after entering the water.

Due to the depth of the water in the middle of the lake, the anchor was not long enough, and someone had to secure the boat to prevent it from drifting away. After some discussion, Zhao Ling's curiosity became uplifted, and he thought that if Yuan Qing had something to do, he might not be able to escape his doom, so he asked to go with him. Although Duo Wei was also very curious, she knew the severity, if the four of them went together and came back, if they couldn't find the boat, it would be very troublesome to find the shore from the middle of the lake without a boat, even if there was Mu Xin, so she stayed without permission.

"Let's go!"

As the skin is stimulated by intense cold, the capillaries of the epidermis will contract sharply, prompting blood to return to the heart and deep tissues at a constant temperature to the vital organs of the body. After adapting, although Zhao Ling's face was still a little pale, it was much better than just now, and when he took off the respirator, he felt that he was fine, so he swam to Zhao Ling's side and stretched out his hand to dive.

Since Yuan Qing had water beads, he didn't need Mu Xin to drag and sneak in the water at high speed, so Mu Xin just dragged a Zhao Ling to sneak in. The deepest part of Bosten Lake is not in the middle of the lake, but in the west of a piece of red ground, about 560 meters deep, and fortunately the mouth of the cave is not there. When a person dives 300 meters underwater without any protection, the internal organs will begin to deteriorate. At 500 meters, the internal organs were ruptured, the eardrum was permanently damaged, and the eyeball burst. Above 700 meters, they will die directly. The depth of the location in the center of the lake is only about 85 meters, which is one of the reasons why Yuan Qing agreed with Zhao Ling and even agreed to go into the water himself.

Since Mu Xin needed to take care of Zhao Ling's need to adapt to the lower water temperature brought by water pressure and depth, it took Mu Xin, who normally dived to the bottom in three minutes, nearly ten minutes to reach the top of the nine black holes. Turn on the underwater searchlight, and you can clearly see that the nine black holes are about 10 meters in diameter each. Eight of the nine black holes are arranged in a circle, around the middle.

"Where do you get in?" Yuan Qing spoke a little vaguely with water beads in his mouth, but he could also speak in the water.

"I don't know, let's go down and have a look. Mu Xin pulled Zhao Ling up and landed on the rocks directly in the nine big holes.

The entrances of the nine large caves were as if they had been cut, and there were no extra stones protruding from the roundness, but under the light of the searchlight, the caves were full of strange rocks.

"Gossip?" Yuan Qing stood above the big hole in the middle, turned around and looked around the eight big holes, and asked Mu Xin below with doubts.

"Probably, you should be able to find it if you find a living door. Let's see if there's anything strange about it. Mu Xinshui soared into the air, and after a little thought, he sank to the edge of the cave and took a closer look.

Yuan Qing patted his brain, a little annoyed, he forgot to ask where the reckless elephant got in yesterday. Now the three of them have to look along the cave to see if there is anything different, not to mention whether the three of them understand the gossip and know where the shengmen is, even if they do, they don't dare to enter rashly, who knows if it is really arranged in gossip.

The three of them searched separately, and the distance between each cave was not very far, only a small X-shaped clearing of about three meters. It lasted for ten minutes, and none of them found anything unusual.

"Mu Xin, do you know where the birth gate is?" Yuan Qing touched his chin and looked at Mu Xin.

After some fruitless exploration, the three of them were standing in the southern direction at this time, and they could just see the nine caves on the ground.

"If the Taoist temple doesn't learn those, and those who cultivate immortals don't cultivate the immortals well and learn those are not doing their job, so the Taoist temple only records the method of learning. Mu Xin said helplessly.

"Then explore them one by one! Anyway, there is time, and there is an air bottle!"

Kiss..

When Yuan Qinggang said that he wanted to explore one by one, a huge bubble suddenly appeared in the cave in the direction of two o'clock to the north, and as the water pressure crowded, the huge bubble burst into countless small bubbles with a dull blasting sound. Seeing his strange appearance, Mu Xin immediately flew forward, and Yuan Qing and Zhao Ling followed behind him.

"The water flow is wrong, Mu Xin be careful! Mu Xin !!" When Yuan Qing passed by the cave in the center, he had a water-repellent bead in his mouth, and he could clearly feel that the cave began to pour water into it, and there was some suction...

Just as he hurriedly opened his mouth to remind Mu Xin to be careful, Mu Xin suddenly sank into the bubbling pit as if he had fallen from a building. After hurriedly shouting Mu Xin's name, an irresistible suction force suddenly appeared in the central cave under the feet of Yuan Qing and Zhao Ling, and the two of them were sucked into the cave in an instant...

Boom.. Whew...

In the chaos, the underwater searchlight on Yuan Qing's head shattered, and he only felt that the water was mixed with a soft body and collided with him. immediately grabbed it and hugged it tightly, and Zhao Ling also hugged Yuan Qing's waist tightly with his backhand in a panic. The cave was dark, his eyes couldn't see, and he didn't dare to say anything with water-repellent droplets in his mouth. The raging water carried the two men who were entwined together and rushed through the winding cavern.

"Uhhh

Yuan Qing only felt a sharp pain in the hand holding the backpack behind Zhao Ling, and then Zhao Lingjiao snorted and let go of the hand holding Yuan Qing's waist.

Burst.. Burst..

There was another sharp pain in the right arm, and with a whirlwind rolling, the back hit somewhere under the impact of the violent water, and I only felt another sharp pain in the shoulder blades of the back...

"Shhh

There was another sharp pain in his left leg, and he was able to breathe without hindrance with water droplets in his mouth, and he suddenly gasped. Yuan Qing couldn't care about the others, so he had to hug Zhao Ling, his heart was very anxious, Zhao Ling was now completely held by him, his hands were hanging, and with a coquettish cry before, Yuan Qing could completely determine what state Zhao Ling was in now.

With the impact, Yuan Qing could feel that although the water was already as turbulent as just now, it was not spinning the world like just now, it should be entering a relatively long passage.

Yuan Qing, who was anxious and helpless, immediately made a decision and tightly supported Zhao Ling's waist with his right hand, making it close to him, and groped up with his left hand to hold Zhao Ling's head. Taking a deep breath, he kissed Zhao Ling's mouth accurately, stretched out his tongue and wanted to pry his teeth open, but Yuan Qing didn't know that the unconscious person's teeth were extremely tight due to self-protection. He frowned, so he had to use his tongue to push the water-repellent bead into the left cheek of Zhao Ling's lips and teeth.

Yuan Qing only knew how strong Zhao Ling's toughness was in the water, this water was extremely piercing, and under the pressure of water pressure, he only felt that the internal organs of the chest and abdomen were extremely uncomfortable under the squeeze of the bones. The hand that hugged Zhao Ling immediately pinched the trick, and the air compression bottle backpack immediately appeared between his hands, and he held Zhao Ling's legs tightly with one hand and sandwiched the backpack carrying the air compression bottle, and followed the bottle body of the backpack air compression bottle to the familiar groping air valve, unscrewed the air valve, and then touched the bubbling respirator pipe, and then grabbed the respirator and stuffed it in his mouth, and did this series of actions in the water, saying that it was as fast as lightning, and as slow as a thousand years.

As soon as Yuan Qing stuffed the respirator, he felt that the water began to surge again.

Depend on... He cursed secretly, clenched the respirator tightly, buried Zhao Ling's head between his chest with both hands, and tightly sandwiched the air bottle backpack between his legs to deal with the next turbulent drift...

Catch...

Bite...

In the dark cave, Yuan Qing had long lost count of how many times he had hit the zigzag cave wall in the water, but he just bit the breathing apparatus and hugged Zhao Ling tightly in his hands.

Grunt...

With a red pain in the corners of his mouth and ankles, Yuan Qing only felt that he was thrown into another piece of calm water like a cannonball.