Since we don't have much context, she could be anyone. She might be an ordinary girl with a passion for the sea, or a character created to represent the relationship between humans and the ocean.
The book 'Woman of the Sea' is fiction. It typically has elements such as invented plots, fictional characters, and possibly elements of fantasy or imagination that distinguish it from non-fiction works based on real events or facts.
The main theme might be about the relationship between the woman and the sea. Maybe it shows how she depends on the sea for her livelihood or how the sea shapes her life in some way.
I'm not sure who the specific author of 'young woman and the sea novel' is as there could be many novels with a similar title or it might be a relatively unknown work.