It took Lang Tianya less than an hour to arrive at the old black mine site. At this time, the sky was covered with snowflakes, but fortunately the snow was not falling much, and the visibility was acceptable. He activated the farsightedness charm in the air and looked down closely.

A gentle hillside near the mine site has been leveled and the ground has been leveled and tamped into a larger improvised helipad. A concrete-paved road runs from the apron to the underground entrance to the mine. The entrance has been enlarged a lot, the staircase has been rebuilt, and the elevator hall has been changed from underground to above ground to facilitate the transportation of goods.

A number of large and small wooden boxes were scattered on the ground at the entrance, and several workers were unpacking the outer boxes and containing some new equipment. A forklift is moving back and forth, loading the unpacked equipment into the elevator, and someone else is using the elevator to transport it underground.

In the vicinity of the entire mine, every ten meters or so, there is an armed man with loaded guns wearing internal force racks and headsets, vigilantly observing the movements around him. Numerous covert surveillance probes were installed in nearby trees and crevices in rocks.

Lang Tianya hesitated for a moment, not knowing whether it was better to find a way to sneak in directly from the entrance, or to use the vent to enter as before. Suddenly, he had a flash of inspiration, turned and swooped down towards a small lake nearby.

When he came to the lake, he released nine spiritual energy needles that pierced through the ice on the surface of the lake and went underwater. Soon the Reiki Needle found an inlet to the groundwater. He surrounded the nine spiritual qi needles into a circle with a diameter of forty centimeters, explored downward, and changed the shape slightly when he encountered a place where the circle could not pass. He had secretly memorized the length of the places so that he could consider how he would pass through them as he went down.

This small, low-lying lake is about two kilometres away from the mine. The speed of the aura needle was fast, and it took less than a minute to explore the bottom of the mine. At this time, Lang Tianya slowed down the speed of the aura needles and scattered them around the dark river. And he himself tried to concentrate and hold his breath as much as possible, to sense the trajectory of the aura where the aura needle passed, looking for its unnatural changes.

After all, there were too few internal force particles attached to his aura needle, and their feelings were not strong, plus those tiny liquid crystals were scattered and distributed, so he searched very reluctantly. Finally, a strong aura countercurrent hit one of the aura needles. He hurriedly focused his attention on the aura needle. and summoned the other eight aura needles to move closer there.

This is a flat, narrow strip of land about 200 meters long and about 5 meters wide, and when the natural aura flow passes through here, a large number of aura particles are obviously rebounded. Lang Tianya was overjoyed, this must be the slag belt he was looking for. He still remembered that he wanted to leave the underground river, but the Indian named Xindu rejected him on the grounds that the underground river had been blocked by slag. The liquid crystal content of slag after smelting is much higher than that of ore.

Lang Tianya took off his coat and put it on the lake, and then he first condensed a layer of protection on the surface of his body, drew a circle on the ice with his sword, took out the round ice in the circle, and plunged into the ice cave with a fierce man.

The power of the protection program isolated him from the lake, and his underwear was also in the protection program, so there was no water. He didn't worry about breathing, because since he reached the realm of seclusion, he found that his physiological needs such as eating and breathing had become dispensable. Although he hadn't been proven for a long time, he felt that he could survive by absorbing aura.

As he swam in the water, he tried to compress the water molecules in front of him with a protective program, and then transported them through the dark world to the back of his feet and then ejected from behind his body. When he found it feasible, he increased his efforts, which caused his speed in the water to increase dramatically. As he passed through those narrow spots, he could shrink his body and squeeze it, and if he couldn't, he swung his sword to cut, and in five minutes, he was at his destination.

He found out that Credibility was lying. Under the strong light emitted by the fingertips shrouded in light charm, the underground river in front of him was unimpeded and showed no signs of blockage. Above the underground river is a platform made of steel plates, and above the platform is supposed to be the inside of the mine. There is a long gap on the steel platform, which is connected to an iron groove that slopes downward, presumably where the slag is poured downwards in the mine.

But Lang Tianya didn't see any lumps of slag in the water. He was in the scene at this time, so there was no need to sense the aura flow through the aura needle, he used the dark domain to clearly sense that there was an aura rebound under the river. But the feeling was not as strong as he had originally thought. And the degree of strength and weakness is from far to near. Near induction is not as strong as far away.

He voided the aura needle and escaped into the rock formations to explore the entire mine. He found that the liquid crystal content of the entire mine should be extremely low, and it could not be detected at all with the aura needle. However, two of these sites are extremely high, but both of them are inside the mine. He thought about it for a moment and decided to go up and have a look.

He carefully dodged several of the staff members inside. There are not many workers here, and it seems that the mine has not started again, and the main work of the people is to repair the equipment blown up by Xindu and others, and to add some infrastructure construction. Upon arriving at the first location, he discovered that it was a storage room. He stepped forward to inspect the structure of the lock on the door, then hooked the lock with the aura needle, and flashed into the room.

There wasn't anything like a safe in the room, it was just half a room full of slag, some chunks of slag. Lang Tianya picked up a piece, pinched it with his fingers, and sensed it, the liquid crystal content in it was quite high. He didn't touch the slag, but retreated. To take it without telling it is to be a thief! He doesn't take other people's stuff casually.

Since the slag is carefully placed in a closed room, it means that the mine management already knows the value of the slag, so they will lock it up. But then he realized that it wasn't just the current managers who knew this, but the former Neverland guys probably knew it too. This is also the reason why there are no lumps of slag in the underground channels. It is likely that the people of Neverland have been extracting liquid crystals for a long time. This is also the reason why the liquid crystal content of the slag belt is getting weaker and weaker, and it must be that the technology of extracting liquid crystals is getting better and better in the later stage, so the liquid crystal content in the slag is getting lower and lower.

He came to the second place where the aura needle was strong. Found out that this is a cave. There is a large iron gate at the entrance of the cave, and there is an iron fence inside, which looks like a place to lock people. There is a long large bunk in the cave, which extends all the way to the depths of the cave, as if it can sleep hundreds of people. The sense of rebounding aura came from the rock wall inside the cave, and he walked into the cave and found that there was a layer of iron mesh in the cave to isolate the rock wall. He cut through the iron net with his sword, reached for the rock wall, and found that the inner wall of the cave had been painted with a thick layer of cement-like paint. He picked at the wall, twisted a little and sensed it in his hand, and found that the paint was divided into two layers, the outer layer should be a layer of internal force alloy powder, and the inner layer, which he recognized as being made of ground slag, was rich in liquid crystals.

He suddenly understood, this is a cage specially made for martial artists, the coating rich in liquid crystal can isolate the aura, without the supplement of aura, no matter how high your realm is, you can only be an ordinary person in it.

Lang Tianya stood in the cave and hesitated for a moment, and finally decided to leave, without touching the coating on the cave wall. He returned to the underground dark river the same way as he came, found the place where the liquid crystal was most strongly inducted, and condensed all nine spiritual energy needles there, letting them shuttle back and forth in the river like weaving cloth, and each spiritual energy needle would bring back a small grain of spiritual energy liquid crystal. He worked in the water for more than two hours, and the nine aura needles went back and forth millions of times in total, before he collected a small ball of liquid crystal balls the size of a baseball with a lot of impurities.

He estimated that there were still so many more in the river, but they were so scattered that he really didn't have the energy to collect them anymore. Just now, he drove the aura needle back and forth, and the cumulative distance may be nearly a million kilometers, and he had to divide his energy into nine parts, and he worked for more than two hours, which was really a bit unbearable.

Lang Tianya swam back to the small lake from the underground river, returned to the shore and put on his coat, he put the LCD ball in his hand, and used the heating charm to start heating it. I saw that some of the impurities in the ball instantly turned into ashes under the high temperature. Then he carried nine aura needles from the bottom to the top and kept hitting them in the ball, because the liquid crystal repelled the aura in the aura needle, the liquid crystal particles were slowly pushed to the upper part and slowly separated from the impurities, which made those impurities that could withstand high temperatures also be separated.

In the end, there was only a small ball the size of a ping-pong ball left in his palm, and this small ball trembled slightly, like liquid and crystal, showing a dark blue color. He took out the liquid crystal that he had saved from the aura gun from his ear and placed it next to the ball to compare it, they were the same color, similar in color. He dissolved the small bit of liquid crystal into the small ball, thought about it, opened his mouth, swallowed the small ball into his stomach, and then continued to condense the space flat, jumped into the air and ran wildly, heading towards the capital.