At noon, at half past eleven, Nangong Yan and Tang Peng arrived at the parking lot at the entrance of the outer courtyard of the Qingyun Gang on time, and when they saw that the people at the gate of the outer courtyard and the two guards all went to the canteen to eat.

They also got out of the car and carried the toolkit into the gate of the outer courtyard of the Qingyun Gang.

For the distance between the outer courtyard and the inner courtyard, there is a distance of about one or two kilometers, and although the canteen is divided into the outer courtyard canteen and the inner courtyard canteen, all of them have a great sense of difference.

And at this moment, although the two guards did not go to the canteen of the inner courtyard, the canteen of the outer courtyard is also a long distance from the door, and now almost all the people in the outer courtyard have gone to eat in the canteen, so Nangong Yan and Tang Peng also quickly came to the place where they needed to explore with their kits.

For this place, because there is a cave outside, there are two stone lions standing there at the entrance, and after Nangong Yan and Tang Peng passed through, they also entered the cave immediately.

And when they first entered the cave, they were already attracted by the red dot on the top of the cave, for this red dot, if you don't pay attention to it, it is also difficult to find, so, for this red dot machine, it is also a miniature surveillance camera made by Nangong Yan and Su Xu, for this camera, Nangong Yan and Su Xu, it only took about an hour, and they have already exchanged all the configurations inside.

Therefore, as for the current miniature camera, he only plays a certain role in Nangong Yan, Tang Peng, Long Hao and Su Xu.

The effect is that when the miniature camera illuminates the four of them, it will emit a corresponding red dot light, so at this time, on the other end of the camera, Su Xu also watched Nangong Yan and Tang Peng smoothly enter the cave, and he also felt very happy.

Because during this time, Lin Zhigang accompanied Liu Yingyue to visit relatives in D City, and he also let all the workers who were in action rest for a few days.

Nangong Yan and Tang Peng didn't stay at the entrance of the cave for too long, after all, if someone passed by there, it was entirely possible to find them, so at this time, they also quickly entered the cave.

When they entered the cave, they found that there was indeed a big smell of burnt metal coming from inside, and for this, Tang Peng had to pinch his nose with his hand and continue to move inside.

When entering the gold mining area, the smell of burning metal became stronger and stronger, and if you didn't pinch your nose, then there would inevitably be a pungent smell in your nose.

But even so, it made Tang Peng and Nangong Yan have to continue walking, and they also roughly guessed what there would be in it at this time, so when they walked to a place with more gold ore, Nangong Yan also took out a camera-like machine from the toolkit and 'clicked' it against those metal ores, and recorded it inside.

As for Tang Peng, when he also walked inside, when he passed a relatively smoky place, it also made his expression even more ugly, and said, "Damn!" What is going on here? Why does it smell so bad? ”

"Don't talk, just keep going inside and pinch your nose with your hand." After Nangong Yan pulled the zipper of the toolkit, he ordered Tang Peng in front of him.

The two of them walked and walked like this, and finally, after five minutes, they came to a large sinkhole that looked more starry, and when they arrived here, they saw clearly that there was a large pipe placed on the top of the sinkhole, and as for the pipe flowing in it, it was a little golden liquid, and they didn't need to think about it, they also knew where the golden liquid came from.

After Nangong Yan looked around for a while, he immediately took out the tools in the toolkit and threw one to Tang Peng, who was amazed in front of him.

After Tang Peng caught it, he immediately opened it, then took a few steps forward, took some of the golden liquid from the sinkhole and put it in the test tube, and then he put the test tube full of golden liquid into a refrigerator that Nangong Yan came over and put on the ground just now.

After everything was done, they immediately began to investigate the terrain of this area again, and every time Nangong Yan and Tang Peng walked to a place, they would take out the recorder similar to a camera and press it, and 'click' to record it.

Although they could keep all of the surrounding environment in their hearts for this sinkhole, in order for them to complete their task this time, they still chose to take out the recorder and say that these records were in it.

……

And at this moment, in the office, Su Ye also received the phone message from Nangong Yan and Tang Peng, and the whole person seemed to be worried, even when it was eating, he was a little absent-minded, if it wasn't for Xia Zhihan beside him who called him, maybe he would have poured all this plate of rice on the ground.

For today's noon, Su Xu didn't go out to eat with them, so when Xia Zhihan went out, he also asked Xia Zhihan to help him bring a box of lunches back.

Because now he is staring at the scenes that appear on the computer screen at the moment.

Because as soon as Nangong Yan and Tang Peng entered, the miniature surveillance camera also had a tracking system, so it simply let it lock the whereabouts of the two of them, as long as they went, then the tracker of the miniature camera would follow them wherever they went.

As for this thing, it was also because Nangong Yan wanted to try its role for a while, so he installed it in the miniature surveillance camera.