"Dark Lake?" Li Zimu muttered softly as he looked at the flashlight reflected below.

There is indeed a dark lake here, otherwise this passage would not have the power system to maintain normal operation.

Underground lakes are likely to be formed by underground fissures or karst caves formed by the dissolution of soluble rock formations, and if there are underground rivers passing through them.

It is normal for the water in the Himalayan mountains to soak into the ground to form a dark river, and it is believed that there should be a dark lake under the ground in many places around the cave.

Listening to the sound of water flowing in the distance, this dark lake should be quite large, such a large water flow, if not exhausted, can provide a powerful power system for the artificial devices below.

There are not only lifting devices for passages here, but there should also be a lot of large mechanisms, Li Zimu thought to himself.

"Turtle, how big is this lake? I can't even shine this flashlight on the side......

Zhuge Yinglong took the spotlight flashlight and said, the distance of this flashlight is nearly a hundred meters, but it still can't reach the edge of this dark lake.

"The radius should be about a hundred meters," Li Zimu thought for a moment and said, listening to the direction and distance of the sound of the water, combined with the maximum difference between the outflow and the inflow, combined with the height of the cave, he could probably guess the area of the dark lake.

To be honest, an underground lake of this size is not large, it is average, and their platform should not be in the middle of this dark lake, but on the edge, near the side of the exit.

"Jump!"

A loud sound echoed through the cave, and the platform fell directly on the surface of the lake, and the waves could not be calmed down for a long time.

This cave is not high, there is a supporting column underneath, the point is that this column can even be retracted, just now Zhuge Yinglong was lying on the edge of the platform and could see it clearly.

"I understand, the loud noise just now is the sound produced when the platform is connected to the cylinder below, tsk, this brain hole, I have to obey it......"

Zhuge Yinglong was amazed, the platform under their feet was the first to descend from the surface of the glacier, from above to about 300 meters below.

However, there is nothing to support the platform under the passage, after all, it is necessary to build a lifting platform with a height of 300 meters, and it is estimated that it is difficult to do it with manpower at that time.

However, from the height of about 20 meters on the top of the cave, there is no problem in building a lifting mechanism.

The problem is not here, the main thing is that after the platform falls to the water, there is nothing around but water or water......

"Well, is it possible to let us swim to the lake?"

Zhuge Yinglong said speechlessly, there is water all around, there is no rope on it, and there are no floating objects on the water, is it difficult to ask them to swim to the lake?

"You can try it......" Li Zimu said indifferently, he touched the water just now, it was a little biting ice, swam over, this kid is estimated to freeze to death in this water.

"There's always a way, it's all here, and the design agency can't let us just sit here......"

Chi Ling thought for a while and said, she has been following Li Zimu for so long, she has also become a little smarter, there must be a road before the car reaches the mountain, and the bridge is naturally straight to the bow of the boat, she still understands.

"12 meters"

Li Zimu rolled up the wet rope in his hand and said softly, this cave is very quiet, except for the sound of water in the distance, there is only the sound of them talking, there is a deep feeling in this cave, and it feels very loud to say a word softly.

Just now he tied the ice axe with a rope and lowered it all the way to the water, and only pulled it up after the end of the rope, the length of the rope was about eleven meters, which means that the lake was only ten meters deep, not very deep.

"There's movement in the lake......"

Pudding looked at the lake and suddenly said, she didn't need a flashlight, because she could see clearly in the dark night, and the light of the flashlight made her a little uncomfortable.

There was movement in the lake, as if the water in the pot was boiling and boiling, and it was constantly tumbling upward, and she could see it clearly.

"It can't be some giant creature, right?piranha?corpse?!"

Zhuge Yinglong's nerves strained in his mind and said, this scene reminded him of all kinds of strange pictures, and he also saw the movement of the lake.

He understood that something was coming up from under the water, and looking at the extent of the rolling of the water, this thing was definitely not small!

"Watching too many movies?"

Li Zimu glanced at him and said lightly, this kid has so much associative power that he can write......

This cave is so big, how can there be any giant creatures, there is no food source, carnivores will never survive here, and no herbivores will survive, at most some small things that survive on water nutrients.

How could those little things make such a big noise? The only explanation is that it is not a creature that rises up in the water, but a man-made mechanism.

The water of the lake is quite clear, but because it does not shine in the sun, it looks black and not transparent at all, and Li Zimu does not know what is rising up, because it is still invisible.

However, it didn't make a few people wait long, and the thing gradually surfaced, but it didn't make much movement, but it just made a lot of waves on the originally calm lake.

"It's a bridge...... I almost didn't scare this Dao Ye to death......"

Zhuge Yinglong swallowed his saliva and said speechlessly, he still thought that what kind of large creature it was, such as a huge snake or something, full of nervousness about the danger he was about to face, but in the end, you told this Dao Ye that it was just a bridge raised?

What the hell!

Chi Ling was also relieved, because she was actually similar to Zhuge Yinglong......

Li Zimu walked to the edge of the platform and looked carefully at the bridge that suddenly rose from the water and floated on the water.

It should be impossible to say that it is floating, the bridge is black all over, and it is made of metal to the touch, and the only explanation is that there is some device under the bridge to lift it.

The bridge is two meters wide, just connected to one side of the octagon, and there is no superfluous decoration on the bridge, not even the guardrails or carvings.

"There was no rust ......"

Zhuge Yinglong touched the cold bridge and said in surprise, the bridge deck is very smooth, because it rises from the bottom of the water, so it is wet.

"There's a fish!"

Pudding licked her lips and looked at the many small white fish swimming to the side of the bridge, and said happily, when she saw these fish, she wanted to eat something for no reason......

"This fish doesn't have eyes...... "Chi Ling squatted down and looked at these milky white fish up close with a flashlight, and said in surprise.