Eventually, Julius and Rei walked over to Lulunaka - perhaps more appropriately. They followed Lulunaka into the body of the serpent at the bottom of the lake. When they entered the snake's body, it moved again, and the roar reached their ears.

Julius and Rei could feel the serpent's body moving forward, and they were unsteady on their feet, and when they stumbled, they would have fallen to the ground, if not in the water.

The two grabbed something that would stabilize their bodies so they wouldn't be thrown out. The inside of the steel serpent was a strange structure, they had never seen anything so strange. The inside of the snake that began to move was empty, and when you looked out from here, this exaggerated monster seemed to have only a layer of skin outside its body, although it seemed to be a layer of iron skin, but if the inside of this iron skin was hollow, it would inevitably give people a feeling of emptiness.

There was still a place to sit in the long and narrow interior space, which looked like chairs, and Julius and Rei simply sat down because Lulunaka had already sat down.

Lulunaka sat on one side, while Julius and Rei sat across from her. What is it like to sit in the water? Rei felt like she was sitting on a rickety chair, and if she wasn't paying attention, her whole body would float up and out of the chair. When sitting down has become a laborious task, the chair no longer seems to be something to rest on. But they had nothing else to do but sit down, and what about Lulunaka sitting down as well?

When the serpent moved again, it moved slowly at first, but gradually, it began to move faster, allowing the boy and the girl to reach out and grab the place around them where they could, so that they would not really be thrown out. Even if they don't really get thrown out, they don't want to be thrown elsewhere. In this long, narrow hollow space, there is nothing but water, and there is darkness. Without the light of the lighting bottle, there is no difference between this and the outside water world, and being confined to such a space will also give rise to some anxiety that does not appear in the water.

Lulunaka watched Julius and Rei react with a smile on her face, as if she had seen something interesting. Her mouth was still open and closed, and a series of bubbles were coming out, but in this kind of place, she didn't have an audience, and even if anyone wanted to listen to what she had to say, they probably couldn't hear it clearly. Her voice could only turn into bubbles, float around, and burst.

The snake slid faster and faster, and the faster it walked, the more the water squeezed against them. This pressure is not small, it squeezes Julius and Lei's faces a little deformed, even if they want to do something, it will not help, because they have to face the power of the water of the whole lake, they are not crushed by the water, maybe thanks to Lulunaka for letting them drink the potion, but these things, they probably can't perceive, it is not just a potion that can breathe in water. It is not difficult to breathe in water, but walking in deep water is not enough to breathe.

After getting used to the feeling of her body being squeezed, Rei looked outside. It was still dark outside, but the water could be seen surging because the serpent of steel was advancing, and it was moving fast, not as fast as it should be. But whether or not this thing is a living thing is something worth exploring - it looks more like a dead thing, but can move on its own. This is true of a lot of things related to magic, and Rei thinks of it as a magical phenomenon.

The bottom of the underground lake seemed to have access to other places, and the track stretched into the distance, and they seemed to have already left where the underground lake was, not knowing where they were heading.

The sound of water in your ears and the tinkling of your eardrums are not a pleasant experience. Both Julius and Rei didn't feel comfortable in this kind of thing—even though they didn't come to this kind of place for an outing or a visit.

In this underwater world, there are all kinds of sounds, but it is so silent. Because no one can speak in the water, and even if they say it, it can't reach the ears of others, and all that can confirm each other is the feelings that a pair of eyes may have. Julius looked at Rei and saw that her eyes had changed back to snake eyes, which made him have some unwarranted associations: if Rei was a snake, then she was back to a familiar place? But he had been with her for so long, and he didn't think that Rei was a very sensitive existence to things like water, she was a strange little girl, but the strange place had nothing to do with things like snakes - before seeing her snake eyes, it was.

Rei didn't seem to notice any changes in her eyes, maybe the scales grew on her skin so she could better perceive the changes in her body. But apart from her eyes, there were no more changes in her body.

Because of Lulunaka, Julius can't tell Rei about it. He didn't know what Lulunaka was up to, and it seemed that she wasn't happy to see him mention it, so he kept his mouth shut. Now in a place like this, he couldn't talk about it - he only spit out bubbles when he opened his mouth, and couldn't even spit out half a word.

Lulunaka, on the other hand, kept her mouth open and closed, and strings of bubbles spit out of her mouth, like this very funny......

I don't know how long it took, but the moving serpent gradually slowed down and finally stopped. Lulunaka leaves her seat and swims out, with Julius and Rei hurrying to follow.

Back in the vast darkness outside, Lulunaka swam in the water and finally stopped in front of a sealed gate. The stone door closed tightly, revealing only a crack in the door that couldn't even fit a fingernail in. Lulunaka didn't know what to do, and the door slowly opened, and water poured in. Lulunaka beckoned to Julius and Lei, and went in first, and the two of them followed.

Passing through the stone door, the door slowly closed again. When the door was closed, the water was drained somewhere, the water was falling, and finally they were standing on the ground, and there was no more water to hold them up, but now all three of them were soaking wet, and water was dripping from their bodies.