This book was on my TBR list for awhile. I am glad that I finally got to read it, it was nice to take a break from what I usually read. This book definitely kept me on my toes, when I thought I figured everything out, I was wrong, the story line kept taking different turns, most of them good but other times it was really annoying, because I felt at times she wasn't really answering of my questions. 
 (view spoiler)[When I started reading the book, I felt bad for Nick because he wife went missing, I thought maybe it was one of her ex-boyfriends, or maybe that "crazy" friend she had in high school. But then after it told about Nick's affair, I didn't feel bad for him anymore, I was glad that Amy was gone, after finding out about his affair. I thought maybe Amy staged her disappearance, which I thought Nick absolutely deserved. After we find out what really happened, and what Amy was capable of doing, I kept cheering her one. Those last clues she left for Nick on their anniversary were brilliant. I mean come on now, if Nick had a brain he would have figured it out awhile ago. I guess the reason I gave the book 4 stars was because of how it ended. I thought it should have ended better, maybe Nick and Amy not be together, they are always going to be unhappy. (hide spoiler)]