It will be torture to wait for the sequel, torture. 
 This book is actually 4.5, but I'm rounding up because there are way more things that I liked than disliked. 
 So obviously, I loved it. Maggie Stiefvater is quickly becoming one of those authors that I have to keep a look out for because she's really good. She is amazing at world-building; the setting (in The Scorpio Races & The Raven Boys) felt real, like really real. In this book especially, right from the beginning, I was transported. 
 I loved all the characters, how can I not? Noah and Ronan, oh they are such a delight to read! And I love the mystery, the darkness of it ... I won't lie, I freaked out so many times when I read it at night. I literally had to do something else before bed (music, light book) before I'll let myself sleep, because the whole atmosphere of the book ... it seeps out, and it gives me goosebumps. And this is good, guys. Very good. 
 One other thing I really appreciated was the love story (or lack thereof). Stiefvater is building it up; it's not one of those, hey we're fated to be together ... so I'm like, in love with you instantaneously. She's giving it time to grow, at a pace that is believable. The flashes of the future(?) were enough to keep me satisfied. I think it makes it more lovely. 
 I just know that this series is going to be epic. 
 Maggie, make me proud!