Jiang Yiming glanced at the gray clouds hanging in the sky, his neck was directly poured in by a cold wind, and he couldn't help but tighten his neckline, and said: "The weather is getting colder and colder, if you can't stand it, go back to the house first, and tell you the results after I finish detecting the passage." ”

Wearing a bright red coat, Xie Wan'er, who was fair-skinned, was radiating a somewhat dazzling light outward, making people see her at first sight and couldn't bear to open their eyes.

She smiled, like a blooming red lotus, reached out and patted Jiang Yiming's shoulder, and said, "I have already taken a fancy to two coats, just waiting for you to pay, but now I have to please you." ”

"Damn, didn't I already pay you for a piece of clothing? You're a loser, and whoever marries you will definitely go bankrupt. ”

As soon as Jiang Yiming finished speaking, he saw a flash of red shadows, Xie Wan'er had already stepped towards the house, and vaguely heard cursed words such as "slamming the door", "deserving to graduate soon, and no girlfriend yet".

He smiled and shook his head, focusing on the probe robot in front of him. Now was not the time to put it down, because his sensitive senses could sense the vibrations coming from the ground, and it was clear that the fat man's transformation was not over yet.

After a few more moments, the fat man's red head protruded from the much larger hole. This time, without waiting for Jiang Yiming to ask, it nodded to itself, indicating that the matter had been done. Apparently over time, it's also gotten a little smarter.

"You get out of the way."

After the fat head and round body disappeared, Jiang Yiming put the detection robot into the cave with a small slope and pressed the start switch.

Buzz, the pocket-looking all-terrain robot moved against a searchlight and a high-sensitivity camera, four wide wheels rolled and began to move down. It's completely automatic, so you don't have to worry too much.

Jiang Yiming held the tablet and watched the video sent back by the robot. At first, there was nothing to see, just an underground passage full of loess, wide enough to accommodate a man bending forward.

However, this dirt passage looks a little reflective, it should be the slime from the fat man's body painted on the wall, otherwise it is only a few meters underground, and it is unlikely that there will be underground water.

He also squatted down and touched the wall of the cave with his hand, and sure enough, it was slime, which was what he had just seen in the video. After a few minutes in the air, the slime dried, and the dirt walls in the cave became much harder, and they felt like they were made of rammed earth.

Sanhe clay is something similar to cement in ancient times, which is a building material made of sand, clay and lime in proportion. For example, the Great Wall and the ancient city wall are all glued together with large bricks, and they are still standing after hundreds of years.

It's even better that you don't have to worry about stepping down halfway through this passage and getting buried in the ground. That would not be a pleasant expedition, but a dead activity.

Jiang Yiming continued to watch the video on the tablet, only to find that the detector had been stuck by two stalagmites, and it was impossible to move forward or backward, and one wheel stuck in mid-air kept turning.

"Fortunately, this exploration has reached the karst cave, and it is considered to be the destination, and you can see the true face of the karst cave."

Just looking at the picture on the video, he can roughly see that this cave seems to be not small, and the lamppost emitted from the head of the detector is blocked by a dense stone pillar more than ten meters away, but according to the scattered light, he can still faintly see that there is another space behind the stone pillar.

It's just that the current area is hundreds of square meters, and there are still some things to see in front of it, this cave is really not small. It seems that it is not possible to go down, after all, you can only see part of it by watching the video.

Thinking of this, Jiang Yiming took out his mobile phone and called Cui Ziyu to ask if she was interested in going to the underground cave. If you're interested, come back early, and if you're not interested, forget it.

Cui Ziyu said that she would be back soon, and that she would be able to return home in about half an hour, and that she would not be able to explore the cave until she returned.

After hanging up the phone, Jiang Yiming said in his heart: "I didn't expect Cui Ziyu to look so quiet all the time, and he was so interested and excited about underground exploration!" I really can't see that she still has a wild side. ”

It's not so easy to go on an expedition, you have to be prepared, and it takes about an hour to plan, equip the equipment, and figure out how to use it. The most important thing is that you have to look at the experience of those who have explored underground caves.

An hour later, Jiang Yiming, Xie Wan'er and Cui Ziyu were dressed in equipment and almost fully armed. He wears a searchlight, wears a wearable tracksuit, has a large capacity backpack on his back, improved military boots on his feet, and a pickaxe in his hand.

Jiang Yiming glanced at the two of them and said, "Are you ready?" And so we set out on our adventure. It's too late to quit now, and it's going to be a hassle to quit if she goes down and then quits, and I'm not going to send her out. ”

"Hmph, you think you men have the guts? We're not bad women, maybe we'll be better than you. Xie Wan'er snorted unconvinced.

"Sister Wan'er is right, our adaptation to the dark environment is not necessarily worse than yours." Cui Ziyu also helped.

Jiang Yiming was the first to get in, and his posture was similar to sitting on the toilet, almost squatting in. Not to mention the dreary air, it is laborious enough to maintain this posture.

It was dark ahead, very dark, the kind that couldn't see the five fingers. Only in the range of the headlight can you see things clearly.

As he continued to advance, he felt more and more stuffy, his palms began to get wet, and his vest seemed to start sweating, which was not cold at all compared to the outside world.

"Why don't you tell your pet earthworm to widen this hole, so that I can see your fart as soon as I look up now. If you let out a stinky fart, wouldn't I vomit all the overnight meal? ”

Xie Wan'er's voice was reflected back and forth by the channel, and it seemed that the urn sound was urning.

"Hehe, it's good that I'm following behind Sister Wan'er, hahaha." Cui Ziyu almost laughed and was overjoyed. Until her head hit the top of the tunnel and she screamed in pain.

"Let you get carried away, when I go back, I will walk behind you and let you feel the smell of Jiang Yiming's body." Xie Wan'er's sudden words made Cui Ziyu's laughter stop abruptly.

"You're so bad, Sister Wan'er!" Cui Ziyu complained, but she didn't dare to make fun of Xie Wan'er anymore.

Jiang Yiming wisely did not intervene in the bickering between the two women, and silently brought in in front. After looking at the time, it had been three minutes into the underground passage, and the air was so dull that it seemed like it could hold out water.

"Damn, are we going to plug in the oxygen cylinder, I'm almost out of breath, there's not much oxygen in this underground space at all."

Xie Wan'er reached out to Jiang Yiming. When I slapped my stock, I didn't feel shy and embarrassed at all, like a friend who had known him for many years.

Jiang Yiming couldn't turn his head, and it was difficult to turn around in this low passage: "You can use it if you want to, but don't count on me when you run out, I want to keep the oxygen cylinder for use in case of emergency." ”

"Stingy." Xie Wan'er muttered.

Jiang Yiming's eyes suddenly opened up, and he saw a piece of stone stalactites that stood upside down like a forest, long and sharp, and looked extremely sharp, making people feel numb, and their hearts were crispy. Dense phobias will scream and flee if they see it.

"Alright, we're in the cave."