At the top of the spiral staircase is the invisible area that disappears into the darkness.

He thinks there must be something going on here? There must be some reason why these people did not dare to linger any longer, or even to return to the other side through the wooden bridge of more than 200 meters.

He hastily made an upward passage and fled.

But judging from the current situation, there is nothing empty in this vicinity at all, and not a single monster can be seen.

Wang Yonghao couldn't figure out, did the later adventurers solve the problem here and kill the monster?

Or did the monster leave later?

He shone his flashlight on the hanging ladder that led to nowhere, and felt that it was still wrong.

If we withdrew because we found that there was no value in mining here, then we go back to the previous question, why is there a well-built spiral ladder up here, and there is a large amount of supplies in stock?

Similarly, why build a camp here? And obviously there are a lot of people who have lived here for a long time.

It simply doesn't make sense.

If it were found that there was no mining value here, or that there were some monsters, there would be no chance of setting up this camp on the shores of this underground lake.

Wang Yonghao looked at the wooden bridge, then at the camp, and at the vast waters.

It occurred to me that this was not an underground lake, but a section of an underground river exposed in this natural cave.

In other words, everything made sense, and it was because there was something in the river that they were stopped.

The workers did not intend to stop digging this natural cave after they dug it, and they even continued to dig forward.

That's why they built a wooden pontoon bridge that connected the entire lake here.

As the entire project continued, it apparently affected some of the beings in the underground river, causing the awakened monsters to suddenly appear and trap a group of miners here.

So, they set up camp here and wanted to go back.

After discovering the problem, the miners on the main vein mine began to hoard resources and find a way to solve it.

But in the end, they were not able to rescue them, so the miners made a ladder up and dug a way out.

And it is precisely because of the hoarding of a large number of things that it attracts adventurers, and when they come here again, they will inevitably put down the unimportant things on their bodies and take with them a lot of things they get in these boxes.

Perhaps the wooden bridge they had passed had alarmed the existence in the underground river, so they had no choice but to leave the same path that the miners had left.

This is generally the case, because there will always be people who will leave something useless, and those who come after will always leave behind what they think is more cumbersome and useless when they loot.

In short, a vicious circle was formed, and when Wang Yonghao came, there was nothing left.

But Wang Yonghao didn't find anything here, at least he also walked over the pontoon, and he didn't feel that there was anything in the water.

Wang Yonghao walked to the water's edge with courage and looked down, but he didn't see any signs.

He simply shone his flashlight downwards to see how deep it was underneath.

His flashlight does have a strong penetrating power, and even in the medium of water, it can still be seen far, far away.

The end of the extension of the flashlight beam that may illuminate a range of 500 meters is still a cloud of mist.

The flashlight shone everywhere and found that there were no shallows here at all, and the whole lake was completely a deep pit in the nature of a cliff!

I can shine a flashlight of 500 meters and look around, but I find that there is not even a single fish here!

In the entire thousands of square meters of vast water, there is a dead silence everywhere that can be illuminated.

There are no currents or currents in the underground lake, and it feels like a pool of stagnant water.

Wang Wenhao didn't dare to easily step on the pontoon bridge again, for fear that there would be any problems, so he simply let his kitten explore the way.

Xiao Ying's very humane performance showed a hint of reluctance, but under Wang Yonghao's order, he couldn't refuse at all, so he could only step on the pontoon bridge in fear!

However, the kitten did not notice anything unusual when he really went up, so he was bold and walked towards the middle of the pontoon.

Wang Yonghao has also been carefully observing whether there is any movement under the water, and he even turned off the flashlight to prevent disturbing the existence that may be about to appear.

The kitten trembled and walked 50 meters to the middle of the pontoon bridge, and suddenly all of a sudden the hair stood up, even the tail was cocked, and it rushed forward with a "whoosh".

The cat was frightened, it was his instinct, and Wang Yong didn't find anything wrong on the ship, but the kitten had already run forward quickly, and there was still a pool of stagnant water in the water, and there seemed to be no waves.

But Wang Yonghao knew that the cat must be more sensitive than him, because this body has no prey intuition, so the kitten's reaction means that something must be chasing him underwater.

It's just that Wang Yonghao didn't see anything chasing the little Ying short at all, but he could be sure that there must be something underwater.

This British shorthair cat that has been parasitized by aliens can be said to have exerted the extreme strength and speed that animals can exert today!

It's almost 4/5 of the way through the entire trestle!

However, a rough figure suddenly jumped out of the water, and a huge mouthpiece opened, swallowing the remaining 1/5 of the trestle and the galloping Xiaoying.

"Is this a whale?"

The mouth that had just emerged from the water was the size of a Jinbei van.

The whale didn't have a protruding beak, so it almost overruled that the huge mouth with sharp teeth sticking out of the water was the whale's.

But in any case, this big fish, which is estimated to be at least as big as a ferry, is undoubtedly the culprit who trapped the miners and even the adventurers later.

Wang Yonghao was using the flashlight to shine into the water, and he realized this time that it was not his flashlight that was shining on the empty water all the time.

Instead, his flashlight always shone on the big fish lying underwater.

These thousands of square meters of water are just a ventilation window, and the huge fish like a submarine are swimming back and forth in the wider waterway below.

Such a big fish, four or five times larger than an adult sperm whale, actually only lives in such an underground river!

Wang Yonghao even suspected that this guy had eaten a lot of molten fragments to grow into this figure, and because of this, he was trapped in the low-lying part of this underground river.

He had no ability to leave the waters, so he could only swim back and forth below, and Wang Yonghao even felt that if he grew bigger, he would be completely embedded in this waterhole and unable to move.

In this situation, if he wants to return to the main mine and continue to open boxes and fight monsters, he must cross this lake.

And the biggest problem with this lake is the big fish that can jump up at any time.

Building a bridge is not too difficult, as long as you are a protector in a protector organization, you can do it.

But how to get through is the big question.

And then in fact, it is not a problem for Wang Wenhao: he can fly!

There is more than 30 meters of space in this cave, and he can fly over against the dome and bet on whether he will be swallowed by this big fish?

Of course, there was a better solution, and it can be said that the newly upgraded material manipulator helped him a lot.