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The Longyuan Tiankeng is a secret training base of the special security group.

Tiankeng is a peculiar karst terrain, especially in the Kuizhou district in eastern Chongqing. The small sinkhole is nothing more than a deep hole in the ground, the entrance of which is covered by dense vegetation, and if people and animals are not familiar with the environment, they will often fall into it without paying attention, and they will never be spared.

The large sinkhole is a spectacle. The width and depth often reach hundreds of meters, and the bottom is also connected to an underground river. The rock wall is steep and encircled, like a super-giant shaft, or a naturally occurring iron bucket.

Or, like a wine vat with a small mouth and a big belly, Longyuan Tiankeng is such a place.

According to the private statements of the members of the special security team, the reason why this place is called a sinkhole is because it is indeed quite a pit people. If you don't complete the special training, you have to stay in it for a long time; If you can't climb out on your own within three years, you will have to go back and forth from where you are, and you will not be able to enter the gate of the special security group again.

A military helicopter departed from Yudu and flew east for nearly an hour, slowly landing over a primeval forest.

When Yunkai thought that the plane had landed, the helicopter went directly into the ground, and it took more than a minute to land. He jumped off the plane after Long Yan, and was immediately stunned by the strange environment in front of him.

Surrounded by a primeval jungle with a radius of several kilometers. In the slightly dim light, looming above the jungle, there is a black-brown rock cliff, slanting towards it! The middle gradually closes, and at last only a circular hole remains, apparently the entrance that the helicopter has just passed through.

Looking up from the ground, the entrance to the cave looked like the moon hanging in the sky. The sunlight from outside shone in through the entrance of the cave, forming a straight pillar of light in mid-air, refracting a blurry brilliance in the humid air, and thus illuminating the inside of the giant cave.

The rock wall close to the ground, vertical and smooth, and then shrink into a dome again, large and small stalactites, different shapes, like a sharp sword hanging upside down in the air, the rock surface does not know what minerals are contaminated, under the reflection of the central pillar of light, it reflects the faint blue light of the stars, far away and blurred, like the bright galaxy in the night sky.

Yunkai has already made some mental preparations from the name "Longyuan Tiankeng". If you run here in a windmill car, you will shout happily and exclaim that you have traveled to the inner world of Verne.

It does look a lot like a wine vat, a huge vat. Fortunately, the dome is thousands of meters above the ground, so it will not produce too strong psychological depression, and the only uncomfortable place is probably that the air inside is too humid, which makes the newcomer Yunkai feel a little depressed.

A cold-faced instructor stands outside the helicopter. Long Yan saluted and said, "Instructor Yu, I brought the people." The team leader instructed to train at the highest intensity level! ”

"Please rest assured, team leader!" The cold-faced instructor returned a military salute, and a hint of surprise flashed in his eyes.

Long Yan glanced at Yun Kai, and when he turned to leave, he added: "This person, please ask Instructor Yu!" ”

The helicopter slowly rose from the pillar of light and quickly disappeared into the hole.

Instructor Yu glanced at Yun Kai thoughtfully. He was a little puzzled, the dragon god ordered to train according to the highest intensity level, but what did Long Yan's last sentence mean? The person who can make the dragon girl use the word "please" either has a great background, or has a lot of relationship, hehehe......

The fish instructor secretly pondered in his heart, but his face was silent, and there was a sly smile on the corner of his mouth: "Boy, welcome to hell!" I don't care what your name is, and it doesn't matter where you're from, from now on, your code name is Dragon Thirteen! Dragon-ten-three-! ”

"Here!" Yun Kai raised his voice and replied.

"Excellent! Dragon Thirteen, look up at that pillar of light! ”

"Here's hell, there's heaven there!" The fish instructor pointed to the entrance and exit at the top of the pillar of light, and shouted: "As long as you have the ability to climb out by yourself without the help of any tools, you can leave now, otherwise you will obediently accept the training!" ”

Train? Yunkai didn't understand the true connotation of the word at this time.

He took a closer look at the environment and finally realized with dismay, with his current kung fu that if he wanted to climb out of there, he could only use the series of movies starring Tom to describe the impossible task.

Judging from the qi and blood, Instructor Yu is obviously a master, and his kung fu will not be much worse than Fan Siniang. What's more, people who can be instructors of the special security group must have some other skills, and before he figured out the temper of others, Yun Kai felt that it was better to mess with him less.

"Yes, Instructor Fish!" Thinking of this, Yun Kai immediately expressed the due reaction of a well-behaved child, regardless of whether he pretended to be or not.

Instructor Fish glanced at him coldly, turned and strode into the jungle on the left.

Yun Kai hurriedly raised his heels, and after crossing a rugged path, a "hot spring" with a pungent smell of sulfur appeared in front of him. Through the steam that filled the water, he seemed to faintly see that there were still a few heads floating on the water.

The fish instructor shouted coldly: "Take off your clothes!" ”

"Now?" Yun Kai suddenly felt that something was wrong.

I'll go! Which is this Shenma Hot Spring, which is a pot of boiling water, and the water temperature is at least 80 degrees or more?

The fish instructor didn't say anything, but just untied a thumb-thick leather whip from his waist.

Yun Kai quickly took off his coat, leaving only his close-fitting pants, slipped into the hot spring under the threat of a leather whip, and then let out a high-pitched scream-

"Ahh

"Shut up!" The fish instructor did not have the slightest sympathy, and shouted coldly: "The dragon body technique breathes, the qi sinks into the dantian, and the luck resists!" ”

Yun Kai suspected that he was about to be cooked, and hurriedly picked up the breathing technique in the dragon body technique, gritted his teeth and endured the severe pain, forcing himself to calm down - his only remaining sanity told himself that remaining motionless and still was the least way to absorb heat in boiling water.

The fish instructor stood on the shore with a leather whip, staring at Yunkai without blinking, on the one hand, as a supervisor, and on the other hand, as a caretaker. Since the dragon god ordered to arrange the highest intensity training, it means that this kid has some skills, and he really wants to see where Yun Kai's physical limit is.

As a result, Yunkai also became a head that "floated" on the water. His body remained relatively still underwater, floating naturally in the hot spring with the movement of the current, and then, he saw two familiar heads, the knife and the Mercedes Benz of the Te'an group.

Half an hour later, with the nod of the fish instructor, Knife and Mercedes jumped ashore with shouts.

After another half an hour, Yun Kai was dragged out by the two of them by the arm, and his whole body was boiled red, like a cooked prawn, and his skin hurt when he touched it. The fish instructor shouted, and after seven or eight young people who had received special training, they ran around the hot springs naked, and then Yun Kai felt that his soul had returned to **......

When the central pillar of light turned from white to yellow, and finally to a blurry halo, Yun Kai knew that it was dark outside.

"Get off the horse, this is definitely the bottom of the vegetarian fish instructor!"

When he finally finished the first day of training and returned to the wooden hut camp under the pillar of light, Yun Kai and Xiaodao expressed this opinion. The knife sneered: "Brother, you think too pure about the fish head!" You'll know tomorrow, the god horse is called Ice and Fire......"

Fish head is naturally the nickname given by the special training students to the fish instructor.

This night, Yunkai couldn't sleep. The skin on his body was like a fire, and as soon as his body touched the hardwood bed board, it hurt like a soldering iron, so he had to stand in the wooden house and practice all night.

Before the pillar of light above his head could brighten, the sharp whistle sounded again. The morning training was simple, running – the only difference was that they had two not-so-friendly Tibetan mastiffs behind them. The slowest runner will have the opportunity to test if the mastiff's teeth are sharp......

After noon, Fish Head led the special training team to another pool. The exact opposite of the hot springs is that this pool is covered with a thick layer of ice, which is also steaming mist, but it is just icy cold.

"This is the yin pool of the yin and yang pool, and yesterday it was the yang pool." The knife reminded in a low voice: "When you go in, quickly break the ice cubes around you and keep exercising as vigorously as possible!" ”

Yun Kai finally understood that what Xiaodao said yesterday about the "two heavens of ice and fire" was the meaning of the gods. Under this giant sinkhole, there should be two Yin rivers, one extremely hot and the other extremely cold, which just forms the yin and yang eyes like a Taiji diagram.

The Yang Pool was forced to be still, and the Yin Pool was forced to move, Yun Kai jumped into the icy pool water with the special training team, shivering all over the body, and couldn't help but start fluttering. While carrying the dragon body technique, he desperately cursed the heavy fish head.

Train? That's right, it's a bottomless training. Naked**, leather whip, ice and fire...... I wonder if there are any other shows that are tied up and dripping wax?

Yun Kai didn't notice that a trace of cold poisonous qi seeped into his body from the surface of his body, gradually stagnating and gathering in the lower abdomen dantian. In the midst of the intense exercise, the cold poisonous gas and the hot poisonous gas left yesterday began a tug-of-war, and finally formed a situation of equal strength, vaguely forming the shape of the Taiji diagram in the dantian, which is somewhat similar to the environment of this Longyuan sinkhole.

According to the theory of traditional Chinese medicine, there are six qi in the sky, cold, heat, dryness, dampness, wind and fire, and six diseases are born of lewdness, which is called six lewdness. In "Su Wen: The Great Treatise of the Tianyuan Era", it is said: "Cold, hot, dry, damp, wind and fire, the six gases are also dissolved in the sky, so they are the yin and yang of the sky." ”

Yunkai's drug-free body is known as invincible to all poisons, and at this time, under the influence of the yin and yang of the sky, the cold poison and the hot poison invade in turn, and there is a faint sign of poisoning, a result that even the dragon god did not expect.

Longyuan Tiankeng has been stored for many years, and there are not many members of the special security group who have come here for special training, but they only use the yin and yang pool to boil their physique and improve their body's immunity and reaction ability.

For Yunkai, this result is not known to be good or bad for the time being.

It is conceivable that once the Yunkai dantian gathers cold, hot, dry, damp, wind and fire, and the six qi turn into yin and yang, the cold and hot dantian will evolve into the legendary yin and yang dantian, entering a strange realm that people in the poison gate have never reached.

It is also a path that no one has ever walked before. I don't know if it is poison art into the martial arts, or martial arts into the poison path, or poison weapons into the heavenly path - perhaps, this is the gate of the poison art?

Don't use the hidden dragon, or jump in the abyss, this is the meaning of the dragon abyss. Can Yunkai soar to the sky? How powerful will his enemies be? Will he be able to find and rescue his missing father? Will he and his friends have an impact on Huaxia and the world?

Also, which sister will he overthrow, or which mushroom Liang will push back?

If you want to know what happened next, and listen to the next volume break down.

(End of this volume.) Please see the third volume of "The Grievances of the Wealthy")