After he said this, Anying just frowned with difficulty because, in fact, he hadn't really considered this point when he was above.

However, the key issue is that this is what they should face.

Leave himself behind? But, based on his capabilities, if something dangerous indeed occurs here, he truly wouldn't be able to handle it.

And now, the only one who can completely deal with this environment is Ye Chen.

But the key problem is, if Ye Chen stays above, then when they encounter safety issues underground, how should they deal with it?

So, after thinking it over, it seems like leaving anyone behind is unsuitable.

"Forget it then, I've thought it through carefully just now. It seems, leaving any one of you wouldn't serve that purpose, so let's go together. Even if we're trapped inside, at least the three of us can be together, and then we can think of other solutions."

"Right, at this point, this seems to be our only option."

After speaking, they took a look inside. Now, it's clear that the swamp has started to sink, and by rough estimation, it's about two meters deep.

"Now, it's almost two meters, and as for what's next, we don't know how deep it might go. We just hope it's not too deep so that we can ensure the length of our rope, and everyone can safely enter the cave."

"Yes, so the situation is still unclear, so let's wait patiently."

After saying that, Anying nodded and then waited patiently.

About 10 minutes later, they suddenly discovered in surprise that a dark hole seemed to appear on one side of the swamp below.

"Hey, look, is that the place?"

Ye Chen excitedly pointed over there. Anying just glanced down and estimated that the distance from the ground was about three meters.

"Looking at this, the height isn't very high, and their rope is still enough. Moreover, this entrance could accommodate two people entering side by side."

"I saw it. If I'm not mistaken, that should be an entrance to a cave."

"Really? Is it really a cave? Then if that's the case, shouldn't we go in now and see what it's like inside?"

"Don't rush. Let's wait for the mud in the swamp to fully recede, and then we'll check some other aspects to confirm there are no issues here before proceeding to the next step."

Lin Yaru just nodded. Having waited this long, it didn't matter to wait a bit more.

Anying glanced at the time, realizing that about half an hour had passed. According to their previous estimates, it should be around 40 minutes, so the last 10 minutes were crucial.

They looked down and noticed that there's something about 10 meters below, and they could see some photos. Judging by this, it hadn't fully receded.

Because the sound continued, and the bubbling noise seemed to grow more noticeable at this moment.

"I estimate we're getting close to the bottom, as changes are most evident near the bottom. So, time-wise, it should be about right. I closely observed the surroundings and found that only this place has an entry-exit opening; all other directions are sealed with stones."

"So, the only hope should be here. Look, it has reached the bottom."

Suddenly, Ye Chen pointed downward, and they clearly saw a large hollow below, with the swamp having completely receded.

But this strange natural phenomenon left them all puzzled.

There was so much swamp and muddy stuff in there, but why did it seem to suddenly disappear at this moment?

"Hey, where do you think all the stuff in the swamp went?"

"It got absorbed by the ground below. This ground isn't as dense as we imagined; its density should be low, so these can slowly blend in and be absorbed. However, tomorrow when the sea tide rises, it'll likely push it out again, so that's the principle."

"Then our rope should be able to hook onto an entrance without much problem, so we can prepare to descend now. But for safety's sake, I should go first. Once I ensure there's no problem inside, Yaru, you go second, with Anying protecting you. Once Yaru has descended, you'll follow last. Got it?"

"Don't worry, I know what to do. Be careful when you go down."

"Okay, I will."

"Additionally, given this situation, our equipment is quite heavy, and I don't want to add unnecessary weight to the rope, so it's best not to bring it. Just carry some sturdy things with you, and we'll soon find out what's going on inside."

"Alright, then let's bring some essentials. Come on, I'll go first."

While speaking, Ye Chen walked over and first fastened the rope around himself, then he forcefully pulled it a bit, feeling that it was completely secure,

not just for himself, but even for two people. At this moment, there shouldn't be too much of an issue.

After that, Ye Chen slowly started sliding downwards, and the height was manageable. It wouldn't take more than a few minutes to reach that distance, and soon, Ye Chen easily approached the cave entrance.