In the end, Julius and Rei walked towards Lulunaka, or rather, they swam towards her.
They followed Lulunaka into the serpent's body at the bottom of the lake.
When they entered the serpent's body, it started to move again, and a roaring sound came into their ears.
Julius and Rei could feel the serpent's body moving forward. Their feet were not steady, so they staggered and floated to the side. If they were not in the water, they would have fallen to the ground.
They grabbed onto something that could stabilize their bodies, so that they would not be thrown out.
The interior of the steel serpent had a very strange structure. They had never seen such a strange thing before.
The interior of the moving serpent was hollow. Looking from the inside, it seemed that this monster only had a layer of skin. Although it looked like a layer of iron skin, if it was hollow inside, it would give people a sense of emptiness.
In this long and narrow space, there was a place to sit. It looked like a chair. Julius and Rei sat on it, because Lulunaka had already sat down.
Lulunaka sat on one side, while Julius and Rei sat opposite her.
What was it like to sit in the water?
Rei felt like she was sitting on a wobbly chair. If she was not careful, she would float up and leave the chair.
When sitting down became a laborious task, the chair seemed to be no longer a place to rest.
However, they had nothing else to do except sit down, not to mention that Lulunaka had also sat down.
When the serpent started to move again, it moved slowly at first, but gradually, it began to move faster. The boy and the little girl reached out their hands to grab onto something, so that they would not be thrown out.
Even if they would not be thrown out, they did not want to be thrown out.
In this long and narrow hollow space, there was nothing but water and darkness.
After leaving the light of the illuminating bottle, this place was no different from the water world outside. Being confined in such a space, they felt some anxiety that would not appear in the water.
Lulunaka looked at Julius and Rei's reactions with a smile on her face, as if she had seen something interesting.
Her mouth was still opening and closing, and a series of bubbles came out. However, in this place, she had no audience. Even if someone was willing to listen to her, they would not be able to hear her clearly.
Her voice could only turn into bubbles, floating in all directions, and then burst.
The serpent moved faster and faster, and the faster it moved, the more the water squeezed onto them.
The pressure was not small, and it squeezed Julius and Rei's faces out of shape. Even if they wanted to do something, it would be useless, because they were facing the power of the entire lake. They were not squashed by the water, perhaps they should thank Lulunaka for letting them drink the potion. However, they probably would not be able to notice it, because the potion was not just for breathing in water.
It wasn't difficult to breathe in the water, but to walk in the deep water, just breathing was far from enough.
After getting used to the feeling of her body being squeezed, Rei looked outside.
It was still dark outside, but she could see the water surging. The steel serpent was moving forward, and it was moving very fast, so fast that it should not be possible for a creature of its size.
However, whether this thing was a living creature or not was something worth discussing. It looked more like a dead thing, but it could move on its own.
Many things related to magic were like this, so Rei regarded this as a phenomenon of magic.
It seemed that there was a tunnel at the bottom of the underground lake that led to other places, and the track extended into the distance. They seemed to have left the underground lake long ago, and no one knew where they were going now.
His ears were filled with the sound of water, and his eardrums were thumping. This kind of experience could not be said to be pleasant.
Both Julius and Rei felt that sitting on this thing was not a comfortable experience, although they did not come to this place for an outing or for fun.
In this underwater world, there were all kinds of sounds, but it was so quiet.
No one could talk in the water, and even if they did, it could not be transmitted to other people's ears. The only thing that could confirm each other's identity was the feelings in a pair of eyes.
Julius looked at Rei, and saw that her eyes had turned back to snake eyes. This made him think: if Rei was a snake, then did she return to a place she was familiar with?
But after spending so much time with her, he didn't think that Rei was sensitive to things like water. She was a strange little girl, but the strange part was that she had nothing to do with snakes — until he saw her snake eyes, that was true.
It seemed that Rei had not noticed the changes in her eyes. Perhaps she could better perceive the changes in her body when scales grew on her skin.
However, other than her eyes, there were no other changes in her body.
Because of Lulunaka, Julius could not tell Rei about this.
He did not know what Lurunaka was up to, and she did not look pleased to hear him mention it, so he held his tongue and did not speak of it.
Now, in this place, he could not talk about it — he could only spit out bubbles, and could not even say a word.
Lulunaka, on the other hand, was still opening and closing her mouth, and a string of bubbles came out of her mouth, as if she was having fun.
After an unknown amount of time, the moving snake gradually slowed down and finally stopped.
Lulunaka got up from her seat and swam outside. Julius and Rei quickly followed her.
Back in the vast darkness outside, Lulunaka swam in the water, and finally stopped in front of a sealed door.
The stone door was tightly closed, and only a gap that even fingernails could not penetrate was exposed.
Lulunaka did something, and the door slowly opened, and water poured in.
Lulunaka waved to Julius and Rei, and then went in first. The two of them followed her.
After passing through the stone door, the door slowly closed again.
When the door closed, the water was drained away, and the water level dropped. Finally, they stood firmly on the ground, and there was no more water to hold them up. However, now the three of them were in a state of soaking wet, and water kept dripping from their bodies.