I think that Maggie Stiefvater likes to focus too much on details and actions that the characters do and that don't have just any specific meaning, than on the plot. I don't like the fact there's barely something going on for the entire book. She focuses on characters mostly, and I cought myself in a reading slump actually a few times while reading. Nothing happens. Nothing, that I would say "oh my god, you came so unexpectedly!" to. The fact is, that it was a quick read, so that's a plus. The book wasn't bad, but I'm just not into it that much. I want to and I will read the next book, maybe it will get better, I know for a fact that happens quite often. I really like the characters so I do want to read about them again. 
 Can I say how unique and fascinating was the idea of the plot? I mean, if there wouldn't be so much characterization of the boys and Blue, the plot could be really interesting. Also, I think that Blue should know more about what her mother, Calla and Persephone do. She grew up always being close to clairvoyants, and I understand that she doesn't have that gift, but why does she baerly know anything about this stuff? 
 Soon on to the next book.