The cave wasn't very deep, and after entering the cave, it wasn't a straight up and down passage as Clark thought, but a sloping passage.

Although the entrance to the cave is above the lake, the passage is already full of water. However, Clark found that after following this path for some distance, all the water that flowed down from the lake above was blocked by a thin film of air, and could no longer flow even a little further.

Following the current, Clark came to the air film. Then looking at the air film in front of him, Clark stretched out his left hand. Then, without any accidents, Clark's hand passed directly through the air film, and came to the other side of the space where there was no water flow at all.

Clark was not surprised by this, after all, those skeleton monitor lizards can go to the ground through this passage, which means that those skeleton monitor lizards can pass through this air film. And since those skeleton monitor lizards can pass through, then Clark should be able to do the same.

With one step, Clarke's entire body passed through the air film and entered the underground passage. Miraculously, after passing through this air film, all the water stains outside Clark's body were blocked. Even Clark's hair had become dry after passing through the air film, as if it had just been dried with a fan.

Touching his hair, Clark turned to look at the air film behind him. He guessed that this air film should have the effect of being able to recognize and block water molecules. Otherwise, it would not have been possible for me and my clothes to come in, but all the water in my hair would have been filtered out.

But fortunately, this air film seems to be able to only filter and remove the water outside the body, and there is no reaction to the water molecules in the body, otherwise the lethality of this air film is very strong. However, the appearance of this air film also indicates that this Skull Island is not simple, after all, this kind of thing does not look like it is naturally generated.

After pondering the air film for a while, Clark didn't care about it, he had to go somewhere else.

Originally, after entering the underground space of Skull Island, Clark thought that the underground space would be the kind of place that was dark and completely devoid of light. But upon entering, Clark realized that it was a little different from what he had thought.

On the contrary, although the light is not very strong, there are still some light sources in this underground space. Clark took a look and saw that the light sources were all from moss-like plants. Unlike their counterparts on the ground, these underground mosses have evolved the ability to emit light due to the peculiarities of their environment.

Although in fact, the presence or absence of light does not have much impact on Clark, and his vision will not be affected no matter what the environment is. But something is better than nothing.

Following this passage, Clark advanced a considerable distance. However, it may be because the skeletons in this passage were all on the ground when the previous passage appeared, and Clark didn't find a single skeleton monitor lizard along the way.

The whole passage is very monotonous, although this passage is still a bit large, but there is nothing but some glowing moss on both sides. No plants, no critters, nothing.

"What did these skeleton monitor lizards eat when they lived underground?" After such an empty walk, Clark was also a little annoyed. So he decided to speed things up a bit, or he'll know how much of the underground space beneath Skull Island was.

Clark then closed his eyes and focused all his attention on his ears. Just as we selectively filter out a lot of noise in normal times, Clark also filters out the noise that he can hear. Otherwise, with Clark's hearing, his ears are basically buzzing all the time.

After focusing his attention on his ears, Clark felt as if a world of sound waves appeared in his consciousness, and as he continued to receive distant sounds, the area of this sound wave world that appeared in his consciousness was constantly expanding.

Clark knew that the sonic world that appeared in his mind was actually a fantasy of his own, and he didn't really see it. It's because his brain automatically simulates these images through the materials he has seen before after receiving the sound information.

It's like we usually dream, in fact, we don't see anything at all, but our brain will automatically make up the picture according to the brain waves at that time. This is the origin of dreams, and it is also the reason why many times we feel that the dream picture is blurry after waking up.

The same is true of the sonic world in Clarke's consciousness now, because everything in this world is absolutely unique. For example, it is impossible for two leaves to be exactly the same, because of the difference in shape and texture, the echo emitted by these things is also different.

Although we may not pay attention to it, our brain will help us record this information under the action of the subconscious, and record it in the brain area that we don't usually use, and do not occupy the brain cells that we normally use.

But Clark is different from normal people, even if it is only information that is glimpsed out of the corner of the eye, he can recall this picture completely. Therefore, after hearing the sounds of the outside world, Clark's brain automatically corresponds these sounds to the things they belong to, and then simulates them in Clark's consciousness with pictures, which is the origin of the sound wave world seen in Clark's consciousness.

After the appearance of this sonic world, the first thing Clark saw was actually Diana and Coulson, who were only a few hundred meters above him. After being accompanied by Diana, the wonder woman, Coulson and Ward are undoubtedly much bolder.

Now Coulson is wandering around the forest with Ward and Diana, taking pictures and picking plants from time to time. Clark also saw a tightly tied bird-like creature in Ward's hand, and if Clark remembered correctly, this should be a monster unique to Skull Island called the Wings of Icarus, and arguably the only monster that could be captured by Coulson and them.

After 'seeing' that Coulson was okay, Clark began to expand his sonic world around him. Soon, Clark captured the fluctuations of the skeleton monitor lizards in the underworld.

Many, in the range of this sound that Clark captured, there were hundreds of skeletal monitor lizards of all sizes. The smallest of them is only about half a meter in length, so it's a cub. And the largest one, Clark estimated it, and found that just by its height, it was actually about the same as King Kong. Even if it is a tail, the body length of this super-large skeleton monitor lizard is more than nearly 400 meters.

What is the concept of 400 meters, which is almost the length of 4 football fields.