4.5 stars! This is my first Harlan Coben novel, and I found it as difficult to put down as I did Stephen King, 20+ years ago. You are nearly immediately thrown right into the story, and things never slow down or get dull. Some aspects of the story I could guess, but most of it was a surprise to me (and I don't try too hard to figure it out, that ruins the fun!). There are plenty of plot twists and turns, all topped off with an ending I found satisfying.