I Know What You Did Last Summer by Lois Duncan
"I Know What You Did Last Summer by Lois Duncan (recommended by the Strong Female Characters podcast in their "Forgotten Women of Horror" mini-episode series). I've never read her, and never seen the movie, but they did a podcast on her and how much she absolutely hated the movie adaptation. I'm familiar with the movie plot, and now I want to see how the book differs." — Nikki