Zero Days by Ruth Ware

 

Well, it's good to see people are still writing and reading old-fashioned pursuit thrillers--like pretty much everything Ludlum wrote, or some of Grisham's early novels (if you filter out the legal stuff). This is a pretty decent take on it--the POV (the pursued) makes some dubious decisions early in the novel, but they're not completely implausible, and even if the who was pretty obvious to me pretty early on, the why is nicely subtle, and well-handled.