Celaena is a kick butt character, let me tell you. She is so fierce and feisty. There is a love triangle in this book with her, the Prince, and the King's Guard Chaol. It is a true love triangle because Dorian and Chaol are best friends. This book was full of action, but the action didn't overshadow the characters and their development. I read this book on my nook and before I even finished it I ordered the sequel, and the prequel off of amazon. The third book in the series is going to be released on September 2, 2014, and I am super excited to read the rest of this series.
I'm not sure how many books will be in this series, but I know it will be a long series of at least six books. I visited Sarah J. Maas' website and discovered that she has been working on this series for ten years before the publication of the first book in the series, and she was inspired by the idea of Cinderella being sent to kill the prince instead of falling in love with him. Here is the link to her website's page on this book if you are interested in checking it out.