There’s a certain kind of fear that doesn’t come from what you see—but from what you slowly begin to understand. The kind that builds quietly, like a locked room where the air is running out and no one notices at first. That was my experience reading And Then There Were None by Agatha Christie.   I didn’t enter this book as a seasoned mystery reader. In fact, I arrived here still carrying the aftertaste of modern crime fiction—structured clues, forensic precision, technologic