The three of them put the tent away and checked what was left to see if anything was missing.

After carefully checking everything, sure enough, there was nothing left of dry food, and everything else was there.

"It seems that he really wants us to retreat, but we are not the ones who will back down when we encounter a small setback."

"Are you ready?"

Bai Yuxuan asked the other two.

"Hmm." The two of them nodded firmly.

"Let's go, then." Bai Yuxuan waved his hand and walked towards the woods first, and the other two hurriedly followed.

When the three of them walked into the woods, they found a clear trail of drag on the ground.

Lu Zhentian squatted down and took a closer look.

"That's right, that's what the black-haired monster caused by dragging a wolf on the ground."

"If we follow this trail, we'll be able to spot his lair."

Then the three of them followed the trail and continued on their way.

Yesterday it was too dark to see the whole picture of this forest, and now Lu Zhentian has time to take a look.

There is hardly a single living tree in this forest, and 90 percent of it is dry and dead.

Because of this, the ground is full of dead branches and leaves, and there is a rustle when you step on it.

The trail of drag almost looked like a furrow in the ground, and it was unusually glaring.

I don't know how many years of precipitation on the ground have been piled up with a thick layer, and this conspicuous ravine is clearly distinguished from the thick fallen leaves, which also makes it much easier for them to track.

They followed the trail all the way, walking very fast, because it was daytime and they didn't have to worry about encountering anything or being attacked.

The trail was straight ahead, so it didn't take much effort to follow, but just a few meters ahead, the trail suddenly disappeared.

Lu Zhentian remembered that the black-haired monster was also moving forward, and suddenly turned a corner and disappeared.

So he ran a few steps quickly, and sure enough, a few meters in front of him suddenly turned to the right, and pointed straight to a cave more than ten meters ahead.

The three of them came to the front of the cave and looked at each other.

"How? Do you want to go in? ”

Bai Yuxuan asked the other two.

Lu Zhentian didn't speak, just nodded silently, Zhou Xiwei's eyes showed struggle, and after a few seconds, he gritted his teeth: "Go!" ”

"Wait!" Bai Yuxuan stopped Lu Zhentian, who was about to go in with his legs raised.

"You all tie your necklines and cuffs tightly, put your trouser legs in your socks, and your clothes into your pants."

Having felt the feeling of being worse than dead when he strayed into the swamp yesterday and was crawled all over his body by hundreds of locusts, Bai Yuxuan now became extremely cautious.

Lu Zhentian and Zhou Xiwei did what Bai Yuxuan said, and everything was ready.

There are so many weeds growing on the outside of the cave that the entrance to the cave is almost completely covered.

However, there is one place where the weeds are lying on the ground, and there are traces of trampling around it, indicating that this cave is frequented by people or animals.

Bai Yuxuan lifted the weeds next to him and shone it inside with a flashlight.

"Cave, it's actually a cave in here."

A karst cave is an underground space formed by karst in soluble rocks, also known as karst landform.

The calcium-carbonate-rich limestone is eroded by carbon dioxide and water, and some of it is converted into soluble calcium bicarbonate, while the rest of the limestone is eroded by different degrees of erosion, forming stalactites, stalagmites, steep mountain peaks and other strange and dangerous forms.

Bai Yuxuan observed the ground of the cave, generally speaking, like this undeveloped wild cave, the air inside must be rich in water vapor, causing the ground to become extremely slippery.

After observing for a few minutes, Bai Yuxuan said to the other two: "The ground inside is very slippery, let's put on the headlamp, and when you go in, you must be careful with your step, don't slip." ”

The three of them took out the headlamp from their bags and put it on, Bai Yuxuan took the lead and cautiously walked into the cave.

When Bai Yuxuan walked in, he found that this karst cave was very high, conservatively estimated to be more than thirty meters, but the width was very narrow, and it felt like it was only seven or eight meters.

The ground was really petrified, and all three of them were wearing hiking boots, which were supposed to have a very good grip, but they also felt slippery under their feet.

Luckily, the ground is flat, so you won't slide to the side as you walk.

The cave is very dark, after all, it is an undeveloped wild natural cave, unlike the dissolution of the tourist attraction, there are all kinds of colorful, dazzling neon lights on the stalactite, which looks beautiful.

After adapting to the environment in the cave, the group slowly lined up and walked forward.

Bai Yuxuan swept around with his headlamp as he walked.

The stalactites here are all strange, different in size and shape, and if they can be brightly lit, they should also be extremely beautiful.

The group walked forward for about ten minutes, and there was still no trace of human or animal habitation.

Come to think of it, although the environment in this cave is not bad, it is definitely not good.

One is that it's so dark that if you don't have any lighting, you can easily hit the rocks or fall.

Second, the air here is so humid that a faint amount of water vapor forms around the nostrils between breaths, and living in such an environment for a long time is also a great burden on the body.

The third is that the temperature here is very low, and as soon as Bai Yuxuan came in, he found that it was much cooler than outside, and as he went deeper and deeper, the temperature became lower and lower.

If you don't stay for a long time, it's okay, but living in this low temperature environment for a long time, coupled with extremely humid air, both humans and animals will be unbearable.

After walking forward for another ten minutes, there was still nothing to be found, Bai Yuxuan couldn't hold it back, and he turned his head suddenly.

But when he turned his head, he was horrified to find that there was no one behind him, Lu Zhentian and Zhou Xiwei were gone!

"What's going on?! Where did they go?! Didn't it just now?! Bai Yuxuan yelled uncontrollably.

Just a few minutes ago, Lu Zhentian had a brief exchange with him, and a few minutes later, Lu Zhentian and Zhou Xiwei both disappeared strangely.

"Isn't it convenient to go? Or did they go out first? ”

Bai Yuxuan held on to the last glimmer of hope and shouted the names of Lu Zhentian and Zhou Xiwei loudly.

His voice echoed back and forth in the vast cavern, reverberating layer upon layer, but there was no response.

Bai Yuxuan sat down slowly with his back against the stone wall, tears pouring out of his eyes uncontrollably.

"What to do? Now what? ”

It was he who proposed to explore the Lost Soul Valley, and Lu Zhentian and Zhou Xiwei had to follow him because of his face.

Now that the two of them have suddenly disappeared, if something happens to Lu Zhentian and Zhou Xiwei, then Bai Yuxuan will really regret it for the rest of his life.

After a few minutes, Bai Yuxuan adjusted his mood, stood up and said silently: "No matter if something happened to them, whether they are dead or alive, I must get them back." ”