I am currently read the first book in the Quarantine series by Lex Thomas. Very good so far, it keeps me anticipating whatever's coming next. It's like, just when you expect something to go bad for some characters, nothing happens, but then something bad does happen, but not necessarily to those characters. It's very interesting because a big focus of the series is gang violence, and it's about survival and how far people will go ot survive in a desperate situation. But I'm dragging on, just go look at my thread about it:)
EDIT: So I finished this book today. Just wow. 9/10 I would recommend this trip of a novel to anyone. It doesn't shy away from anything, such as sexual encounters, language and violence. There was plenty of language and gore, language because, well, the characters are high school students, and violence because it's just what happens in the novel. Desperate kids in a bad situation, split up into gangs. Very interesting, I saw a review that described it as though you took Gone by Michael Grant and Divergent by Veronica Roth, put them in a cage, shook it up, and this was the result. It's just as if not more intense than Gone, and it's angrier, I guess could be an acceptable adjective? The setting is darker than Gone, even though Gone is pretty dark itself, and you're always wondering what will happen next. Nothing is expected to happen exactly the way it does, and the book is just breathtaking. I cannot wait for Book 2 this Spring!