Having interviewed Gillian Flynn when her first book, Sharp Objects, came out in 2006, and then reviewed her second, Dark Places, when that arrived in 2009, I consider myself a bit of an authority on Flynnish fiction. So when I was about halfway through her latest, Gone Girl (Crown), I smugly thought I had a pretty good idea how things might shake out. About ten pages later I discovered I was dead wrong. Well played, Flynn. Nick and Amy Dunne are by all outward appearances the perfect couple. But Amy goes missing (murdered?) and Nick is the prime suspect. Dude looks guilty as sin. But here, as in Flynn’s other stellar novels, appearances can be deceiving, and sin can be a badge of honor. In Gone Girl, the monsters aren’t under the bed—they’re in it.