I had high expectations for this book after reading John Green's 'The Fault In Our Stars' and really enjoying it. Unfortunately, I didn't enjoy this book anywhere near as much.It started off well but throughout the middle and the end it just got pretty dull and boring. I didn't really like any of the characters, and while I get that they're supposed to be all clever and analytical, I just found them to be pretty nerdy and juvenile.I kept reading because I really wanted to know what happened to Margo. Where did she go? Why did she leave? Was she alive or dead?By the end of it, when I had some answers, I really didn't care anymore because I just found her to be so self-centred.I'll give a few more John Green books a try but I hope they're not all like this.