A new original story is brewing inside my head.

A red haired woman who maintains an entire lighthouse all by herself crosses paths with a mermaid whose lower half consists of an octopus’s tentacles rather than a fish tail.  Additionally, the mermaid appears to be vampiric.

Is the mermaid evil, dangerous, or just misunderstood?

Why does a single woman run an entire lighthouse on her own?

What happens when the woman and the mermaid meet face to face?