Et tombent les filles (Alex Cross)

The dual viewpoints add layers to the suspense, but I wonder how the author decided when and how to switch between them for maximum impact.

The story moved so quickly that I barely had time to breathe, which made the tension feel even more real. Was this a deliberate choice to keep the reader on edge?

The sense of dread permeates every chapter, and I'm curious whether specific research or personal experiences influenced this haunting tone.