Mystery could be a main theme. If it's a woman in a cabin, there might be something unknown or secretive going on.
The main theme could potentially be survival. Maybe the woman in cabin 10 is in a difficult situation, like being stranded or facing some sort of danger. The story could then revolve around her efforts to survive, how she uses the resources in the cabin, and how she overcomes the challenges that come her way. Another possible theme could be identity. She might be in the cabin to hide, or to find out who she really is, away from the outside world.
It could be about isolation. The woman in the cabin is in a somewhat isolated place, so the theme might be about how she copes with being alone, her thoughts, and her self - discovery in that isolated environment. Also, there might be elements of suspense if there are unexpected events that happen around her in the cabin.