Un retiro para escritoras mortal

The isolated location adds so much tension, but I wonder if the author based it on a real place or crafted it from imagination. How did the setting influence the story's mood?

I kept questioning who to trust and whether some characters' actions were justified or malicious. Am I the only one who found myself second-guessing their true intentions?

The pacing felt just right, but I’m curious if the blend of genres was planned from the start or developed during writing. What do you think led to this approach?