This book is told predominantly from heroine Elisa's point of view, although we also get a few chapters told from Hector's perspective which is refreshing. Elisa has grown throughout the trilogy into a very powerful and more self-assured woman than she was in the first book and it's nice to see a YA trilogy with such a complex and engaging character arc for the main character. In some ways this book felt more like a "typical YA read" than the two previous installments in the series, probably because Elisa is a more kick-ass heroine in this book so she feels more like the standard kick-ass heroines in a lot of YA books currently on the market. In a way, I miss the halting, pudgy, self-doubting girl from the first book, but that's not a terrible thing because we need to see Elisa grow. And in Carson's hands, her growth is very authentic. The other nice thing about this series is that there are lots of powerful female characters and they also champion the cause of diversity in a fantasy-oriented context but without hitting the reader over the head with these themes. The relationship between Elisa and Hector comes to a very satisfying resolution in this book, but Elisa never loses sight of her past and we are reminded that it's her past relationships that allow her to forge ahead with Hector.
Overall, I feel that throughout the course of this series, Carson has gone from strength to strength as an author and I'm curious to see what she has planned for her next writing projects.