"The Taar has discovered us!"

Ling Feng shook his head.

"Probably not yet, but looking at his expression, he should be suspicious! Presumably he won't give up. ”

"So what do we do now?"

Ling Feng pondered for a moment, then pursed the corners of his lips.

"Why don't you add more fire to him! Warm up their hands after stealing beams and changing columns..."

"Contact Liang Wenhao and ask him to hype up the miner Natar on the Internet in Zili that he had died in the mining disaster, and put the nameplate of Natar on the Internet."

"But where do you find that nameplate?"

"Liang Wenhao has seen that nameplate, so he naturally has a way to confuse the real with the fake."

"Okay, I see! Then the Tahr may not have time to take care of us for a while. ”

After a long time......

The officers had already surveyed the scene and taken Natar and the mercenaries with them.

"Let's go! Let's go down and see..."

"I'll go with you!" The security guard picked up his shotgun and was eager to try it.

"Uncle, you can keep a sentry for us up there! If there's any trouble, give us a shot! ”

"Good!" The security guard simply agreed.

"Thank you!"

With that, Ling Feng and the three of them went down the steps down the water tower and directly into the courtyard.

"Ling Feng, let's go in and search too, maybe we'll be lucky!"

Zhang Qingsheng glanced at the devastated three-story building.

Ling Feng waved his hand.

"Don't bother, there are so many of them looking for it in turn, we won't look more carefully than them..."

"Only this courtyard, just now Natal wanted to excavate, but we stopped it."

"You're saying there's something wrong with this yard?"

"Don't jump to conclusions so early on everything, you have to see if there is a problem to know..."

Ling Feng looked around the courtyard, then walked slowly along the courtyard wall, carefully examining it.

Soon after......

When he reached a corner, Ling Feng suddenly stopped.

"Huh? Do you feel anything strange about this corner? ”

Bai Tong walked over first.

"Except that the grass grows a little less, the rest is no different from the surrounding area!"

"Well, you're right, it's true that the grass grows less than the surrounding area, and it's also been abandoned for so long, and the lighting and other conditions in this corner are no different from other corners, why is there less grass here?"

Ling Feng stroked his chin and muttered.

Zhang Qingsheng also walked over, holding a folding shovel in his hand.

"I found a folding shovel, and when I walked over just now, I found that this corner is the lowest, and the water must flow here on rainy days!"

"Oh? Then the grass here should grow more vigorously! ”

"Ling Feng, what do you mean..."

"Dig and see, if I'm not mistaken, the soil here must be thinner than the rest of the world."

"Good!"

Zhang Qingsheng answered, waved the folding shovel and shoveled it down.

Before the depth of the second shovel was fully submerged, there was a sound of metal colliding.

"Ling Feng, there's really something!"

Ling Feng was shocked in his heart, "There really is something here!" ”

"Dig it out!"

After a while, Zhang Qingsheng cleaned up the corner, only to see a rusty black metal plate, one meter square, with a handle on it.

"It's like a door!" Zhang Qingsheng grabbed the handle and pulled it hard.

Suddenly, a gust of wind surged and almost knocked Zhang Qingsheng to the ground.

"How can there be a demonic wind?"

Zhang Qingsheng stabilized his body and was taken aback.

"What a demon! It is caused by the long sealing time and the difference in air pressure between the inside and outside. ”

"However, this air pressure difference is a little too big, and there must be something down there that can produce a lot of gas!"

Bai Tong nodded thoughtfully.

"It seems to be, and that strong wind just now made me a little excited for a moment!"

"I feel that way too!"

"I feel it too, it must be a lot of oxygen..."

"Oxygen?"

Zhang Qingsheng seemed to have something in mind......

"Could it be the living Heigu Tai Sui?"

Ling Feng looked puzzled...

"Elder Qin did say that the living Heigu Tai Sui can produce oxygen, but no living Hei Gu Tai Sui has been found so far, so what he said is just speculation..."

"When I was in the mine, I questioned Qin Lao's theory, and there was no living Heigu Tai Sui found there, but there was still plenty of oxygen..."

"What's more, since there is such a large amount of oxygen in the mine, it is not something that one or two Black Gu Tai Sui can do, there must be a large number of live Black Gu Tai Sui!"

"However, we haven't even found a living Heigu Tai Sui, and the oxygen can't be made by the dead Black Gu Tai Sui, so there's a problem, where did the oxygen come from?"

"After I told Old Qin about my doubts, even he questioned his judgment..."

Zhang Qingsheng nodded, "I didn't understand..."

Bai Tong immediately glanced at him.

"I don't understand what you're nodding? I thought I didn't understand it! ”

"Huh? Did I just nod? I want to shake my head! It's over, how do you feel like there's Venus in front of you, and the sky is spinning? ”

Zhang Qingsheng was indeed in a trance......

Ling Feng smiled, "You're drunk..."

"Looks like there's really oxygen!"

"Is this like a mine?"

"Boss Zhang, you wake up outside first, and you guard him! At the same time..."

"Okay, there you go!"

Bai Tong replied simply.

Zhang Qingsheng's eyes were in a trance.

"Then you go first! I'll go down to you when I'm better! ”

“…”

"Phew!"

“… I'm going to look for you..."

After that, Zhang Qingsheng leaned against the wall, feeling more and more dizzy.

Ling Feng picked up the folding shovel and strode into the pitch-black passage.

Inside the passage, layers of masonry steps extend downward.

It took about 100 steps to reach the end.

Ling Feng took out a glowing stone from his pocket, which he had taken from the strange village at the time.

The moment he took out the stone, the pitch-black environment around him instantly lit up.

Coming down from the entrance, there is an arched underground passage with a span of about two meters, and the place where you can see is made of red bricks.

Ling Feng took a deep breath and was immediately refreshed.

"The oxygen concentration in this is very high, if it weren't for the amount that was sprayed out just now, I would not only be drunk with oxygen now, but even oxygen poisoning!"

Holding a folding shovel in one hand and a glowing stone in the other, he walked forward slowly......

After walking thirty or forty steps, there was no red brick wall, but a black wall.

Through the glowing stones, the walls emit a faint glow.

"Sure enough, it's Heigu Tai Sui......

"There is no tinnitus, presumably these black Gu Tai Sui are taken from the mine."

"There are no Blood Tai Sui crystals either, it seems that these Black Gu Tai Sui have been carefully selected."

"It's just that it's not easy to complete this project!"

Ling Feng sighed and continued to walk forward along the passage.

"It's a deep ......"

After walking forward for a long time, there is still no end in sight.

"I don't know where this underground passage leads, and I don't know when I'm going to go like this, so let's think about it in the long run!"

With that, Ling Feng was about to turn around and walk back......

Suddenly, there was a buzz in my head, followed by a flash of black shadows......