The Wicked King

First of all, I don't remember a single page in this book that felt like I just wanted to skim it to get to the good part. The entire book is the good part, and it doesn't get boring.

Second, I love the way Holly Black writes relationships. They're the "can't trust anyone" kind of relationships, while still seeming natural and realistic. Probably because all characters have their own personality and backstory - most don't feel like they're just there as a plot point (with one exception, but that would require a spoiler warning)