I have to admit, I'm glad I got this one from the library. I'd heard some buzz about it and was excited to read it, but it ultimately felt really flat to me. I love a good teen paranormal read, but this one felt underdeveloped with boring characters that I couldn't bring myself to really care about. I found the lack of parental supervision when something so horrific had just happened to be completely unrealistic, and I was bothered that Vanessa, who had never kissed a boy before, went from kissing her friend Simon to sleeping with him in practically the same paragraph. Frankly, the romance was just flat and pretty lifeless. 
 And let's talk about the ending. It felt really rushed and left me wondering what had just happened. And sirens? I'm still not totally clear on them, either. The mythology was never really explained or developed, so I'm lost there, too. 
 And just a side note, did anyone who's read Carrie Jones' Need series (which was written first) see a lot of quirky similarities? Both stories had a major character named Zara (an unusual name) with a Grandma Betty (seriously, same name). Both stories had the characters driving a Subaru and a red Mini Cooper, and they were both set in Maine with a main character who's afraid of everything. I mean, lots of stories take place in Maine, but it was strange how the characters drove the same unique cars and had the same unusual names. I know it's minor, but I was just wondering if anyone else noticed the strange similarities. 
 Anyway, I know a lot of people enjoyed this novel, but for me, I wish I'd skipped it and read something else with my time like Sophie Jordan's Firelight. Now THAT was worth spending an evening reading.