Your OC has discovered a magical portal to an underwater world. Participate for 60XP
This is a character of mine, Count Karnstein of Styria.
He's based on my favourite vampire tale, 'Carmilla' by Sheridan le Fanu.
The piece is called 'Surrender Into the Roses', after Kate Bush's song about Carmilla.
You can read the full story of 'Carmilla' here: