The area of Chadok is not large, and it is divided into two parts along the north-west and southeast trend, and is embedded in the high mountain slope in the shape of a gourd. The flat land in the northwest is relatively small, with a radius of only a few square miles, and the southeast is slightly larger, but also limited.

Directly north of Chadok is the fast-flowing Cape River, and only the south is relatively easy to get to Suri, and there is even an asphalt road. Due to the lack of settlement conditions, it can only be regarded as a subsidiary processing zone in Suri.

The two small plains are connected by a mountain pass, but the width is unsatisfactory, and at its narrowest point it is enough for a small truck.

The geographical natural barrier also distinguishes the industries on both sides, and the northwest is dominated by mining and jade mining. The small plain in the southeast is relatively messy, with dozens of large and small factories and workshops, all of which are rough processing industries at first glance. Among them, jade and wood processing occupy half of the country, and the rest are varied.

There is no decent planning for the buildings here, with a hammer in the east and a mallet in the west. Roughly divided by geography, the northwest is mostly earth and stone structure houses, half of which are built according to the mountain and slope, and the southeast is mostly bamboo and wood structure on the flat land, dotted with stars, and there is no rule.

Li Tianchou quickly locked on to the target, a small two-story building built under a steep cliff, the gray is very inconspicuous, the second floor is not even installed with glass windows, and the big mouths of a row of black holes are very dilapidated.

However, the special feature of this building is that the second half of the building is embedded in the cliff, which blends with the mountain, and it is easy to ignore if you don't look closely. However, the site in front of the small building is obviously relatively open, so why should we abandon the basics and dig the belly of the mountain? How difficult and costly is the construction required?

There is only one building of this type in the whole of Chadok, and the location is more remote than the other.

In fact, there are only three mines in the western plains, and one of them has long been abandoned, leaving only a dozen broken brick houses of different heights.

Li Tianchou planned to go directly to the door at two o'clock in the morning, giving up the routine of pretending to change his appearance to step on the point; first, time was pressing, and only based on the news that the two 'doctors' had lost contact, we could know the anxiety in the instructor's heart; second, he deliberately concealed it, but it was easy to startle the snake.

Prior to this, Li Tianchou did his homework in detail, observing the slope and direction of the back side of the two-story building mountain against satellite pictures, but unfortunately because of the dense vegetation, it was impossible to judge whether there was a hidden road leading to the back mountain.

In the middle of the night, the mining area is lifeless, and there is a bamboo pole standing not far in front of the two-story building, and the head of the pole picks up a light bulb, which is dim and yellowish in the distance, which can only illuminate the surrounding area of a few square meters, and the rest of the place is black and pressed to reach out and lose five fingers.

The surroundings were unusually quiet, except for the occasional barking of dogs, all that remained was the sound of rushing water in the Linglun River not far away.

Such a simple small light bulb made Li Tianchou dare not be careless, it seems that there is a danger of being found when approaching the small building from any direction, when he observed it earlier, he remembered that the gravel ground around him was clean, and now a few vicious dogs appeared for no reason, very large, wandering around the small building, which added a bit of difficulty.

Li Tianchou took out a telescope with night vision imaging, carefully observed the cliff above the small building in the distance, and quickly left the grass nest where he was hiding after repeatedly confirming the height and inclination.

It didn't take much effort for Li Tianchou's figure to appear on the top of the cliff, he was not in a hurry to act, but collected a lot of fine-leaved vegetation, stacked them together and wrung them together with both hands, and then smeared the overflowing juice on the exposed parts of the body, mainly to prevent vicious dogs with a keen sense of smell.

Of course, Li Tianchou also had a backup means, and he installed a * on the pistol in case of emergency. After taking one last look below, he secured the climbing rope and slowly descended the cliff face.

The process of reaching the top of the building was relatively smooth, during which there was only a small accident, and the vicious dogs on the ground suddenly barked wildly, and after about a few kinds of effort, they all quieted down, and strangely no one came out to check, and there seemed to be no one in the small building at all.

The condition of the roof made Li Tianchou dumbfounded, there was no expected exhaust skylight at all, and the pimple floor, it could be seen that the construction quality was very poor, but he couldn't find any gaps that could be moved.

The only place to try is the joint between the cliff and the roof, which is a flat, arched gap, the highest point in the middle is about 35 centimeters, and only one person can climb it.

Li Tianchou took off his backpack without hesitation and looked inside the crack with a telescope for a long time before deciding to take a risk.

It seems to be a blind adventure, but in fact, Li Tianchou has his own reasons, because he found that the airflow here is strong, and there is a faint familiar smell, is it the real vent inside?

Such speculation actually made him find the right entrance to the mountainside by mistake.

The gap was not getting narrower and narrower as expected, on the contrary, the space inside expanded rapidly, and in the end, Li Tianchou could almost stand up straight, which showed that the space that was chiseled in the belly of the mountain was much wider than what was visually seen outside.

Right now, Li Tianchou was blocked by a huge semi-circular wall, the diameter of which was probably five or six meters in diameter, and there were neat embedded gaps on the top of the wall, and a strong, slightly warm airflow rushed out of the gaps, and the sound of coaxing could be faintly heard nearby.

Yes, such a huge vent can explain the vastness of the space in the belly of the mountain, and I am afraid that there is more than one such vent. Li Tianchou turned around and retrieved his backpack, and then fumbled to try to find the mechanism to open the ventilation window.

With a click, Li Tianchou's fingers buckled open a raised iron buckle, and the wall seemed to be slightly loose, and after some further exploration, there was indeed a bulge below the vertical iron buckle.

After opening it as it was just now, Li Tianchou gently pushed the wall, and with the sound of clicking, a small door two feet square was opened, and the black hole inside could not see, but the roar of the air flow was much louder.

Li Tianchou was not in a hurry to enter, but listened attentively for a moment, then took out the climbing rope and hung down the small door, and after testing the height inside, he quickly replaced the metal hook at the other end of the rope with the 'Flying Tiger Claw', buckled it at the corner of the door frame, and then tried the strength with his hand before dodging in.

After his feet were on the ground, Li Tianchou carefully put away the rope. Although it was pitch black, with his super perception, he predicted that the space he was in was not large, and it was closed on all sides, like a common maintenance patio in a building.

Li Tianchou listened to the movements very patiently, then took out a pocket flashlight, wrapped the barrel head with several layers of gauze, and turned on the button. Faint bright light presents a vague outline of space.

Sure enough, as he expected, this is a maintenance well, the space is only five or six square meters, and the surrounding walls are densely lined with pipelines, of different thicknesses, most of which extend to the outside of the well.

Li Tianchou was a little nervous at this time, just by the density of the pipeline and the rigor of the arrangement, it can be judged that it is by no means an ordinary mine tunnel, I am afraid that the trip to Chadok will really be rewarding.

The exit is not difficult to find, Li Tianchou quickly touched a small door with the faint light of the flashlight, and held the handle lightly, but it was not locked, and there was a faint light penetrating through the crack of the door.

Li Tianchou, who was about to push the door in, was interrupted by a sound of footsteps, kicking from far and near, and went straight to the maintenance shaft, which sounded like it was not slow.

The footsteps soon reached the door, and Li Tianchou pulled out his pistol and quickly flashed to the side. The other party seemed to just pause and opened the small door, and the light illuminated a figure standing at the door, muttering that he didn't know what he was saying, and with a click, a strong light flashed, and the person turned on his own flashlight and shone at the pipeline on the wall in front of him.

As if nothing had gone wrong, the man's mouth began to mum again, the flashlight turned to the other side of the wall, and the whole person stepped into the repair shaft.

As if there was still no problem, the man spat on the ground in disgust, and when he turned around again, he felt his whole face hit the boulder in a strong wind, and his body slowly fell down as soon as he went limp, and the small door was quickly closed.

It was only a moment before the small door opened again, and Li Tianchou, who was wearing a mask, came out of the maintenance shaft, he had changed into the gray overalls of the maintenance worker at the moment, closed the small door very carefully, and then walked towards the depths of the mountain without stopping.

It was also a late night in Mengqi Town, and the instructor was also staying up late at the moment, he had just driven away Gu Jian and Xu Wen, who were already bloodshot, and turned on the video synchronization transmission equipment at this moment, waiting quietly.

But there was no signal on the display screen at the moment, and the instructor was staring intently. He rarely smoked a pack of cigarettes from his pocket, and after smoking one, he didn't light it, but put it on the tip of his nose and sniffed it.

He felt extremely tired, but he didn't want to sleep there, and he had a strong feeling that 'Walker' would definitely make a move tonight.

The instructor had just given the 'jackdaw' some follow-up tasks during the day, and then rushed from Kunhe to Mengqi, and he did three things non-stop, one was to summarize the small area after Gyatso's interrogation, and the other was to deploy a plan of action to arrest Lao Lai.

The third piece is a bit sad, Gu Jian's group found that there are glassware of different shapes in the pit below, among which the whole box of reagent bottles makes the case-handling personnel scratch their heads, but they don't dare to touch it easily, the incident of unknown biological germs in the wood factory has only been more than a week, and all kinds of rumors make people feel furious in the face of this kind of thing.

This kind of equipment that is used in large quantities in the biochemical laboratory appeared in the underground tunnel only three kilometers away from the Li Wood Factory, which made the instructor's eyelids jump, thinking of Wu Fang being isolated so far, and he firmly believed in Li Tianchou's judgment of the whole incident.

While the tunnels don't have the infrastructure of any standard laboratory, clean water and power systems, the hodgebord of equipment is like a warehouse, or rather a transit station.

The existing evidence could not find out the intentions of Lao Lai's gang, although Gyatso was treated as a core person, but the things he confessed were still at the bottom, and the only big role was to confess a secret stronghold that Lao Lai had hidden, but Xu Wen still pounced.

Only by grasping Lao Lai, or Li Tianchou's side has a substantial discovery, can it be possible to string together the entire incident and find the real mastermind behind the scenes.