The stream ended suddenly. Even though she lost a reasonable amount of air, Four still pretty sure she wouldn’t drown. She looked at her friends, they all looked a bit pale but nodded their head. Then, like before Kave started to lead the way. Four wondered what was that stream just now. Looking at how fine Kave was, she probably knew about it.
I feel like that stream was something else…
Several meters later the group started longing for air. They did swim pretty far already. Riaa, who clearly almost lost it, chased Kave and tapped her shoulders. As Kave looked at her, Riaa shook her head. Kave just smiled and pointed forward. After that she gave everybody a thumbs up. Four hoped that means ‘fresh air is close.’
What Kave signed was true, the dark cave started to become bright. Light could be seen clearly from their front. Riaa and Four looked at each other and giggled. Then they continued swimming.
Swimming, swimming, and swimming. The light was getting brighter, they could feel the endless tunnel would end soon. Surprisingly, there were two figures not far from them. Both are girls with long brown hair and a matching swimsuit. In fact, after Four could see them more clearly, the two girls looked really similar. Four assumed those two were twins. Both were carrying a pickaxe—it seemed like they were miners.
The twins looked at Four’s group, and one of them let out a big bubble as it seemed she was surprised. Turns out they were surprised at Kave’s appearance. They knew each other, Four thought. As the group were passing them, Kave waved her hands to the twins. They both replied with a smile.
Now, Four could see the exit just clearly. Feeling relieved, Four immediately released the air inside her and surfaced…