(5) An idol in a cave (Patreon)

She has enough time to take a break, so she jumps back in the water and continues her journey inside.

Eventually, she stops when she finds something she didn't think she would see: a gem! It shines a red glow as if waiting for someone to claim it.

Fortunately, she was prepared for this, and she grabs a chisel from her bag and starts removing the gem from the wall, unaware that something bad is coming her way.