The Iron Knight by Julie Kagawa

Source: Publisher

My name my True Name is Ashallayn’ darkmyr Tallyn. I am the last remaining son of Mab, Queen of the Unseelie Court. And I am dead to her. My fall began, as many stories do, with a girl.
To cold faery prince Ash, love was a weakness for mortals and fools. His own love had died a horrible death, killing any gentler feelings the Winter prince might have had. Or so he thought.
Then Meghan Chase a half human, half fey slip of a girl smashed through his barricades, binding him to her irrevocably with his oath to be her knight. And when all of Faery nearly fell to the Iron fey, she severed their bond to save his life. Meghan is now the Iron Queen, ruler of a realm where no Winter or Summer fey can survive.
With the unwelcome company of his archrival, Summer Court prankster Puck, and the infuriating cait sith Grimalkin, Ash begins a journey he is bound to see through to its end a quest to find a way to honor his vow to stand by Meghan's side.
To survive in the Iron Realm, Ash must have a soul and a mortal body. But the tests he must face to earn these things are impossible. And along the way Ash learns something that changes everything. A truth that challenges his darkest beliefs and shows him that, sometimes, it takes more than courage to make the ultimate sacrifice.
I adored this series. As sad as I am to see the end of the series, I was glad to see all of characters develop and become stronger. Puck was just as funny as the first book. His one liners were amusing. I also loved Grim. He is so snarky and honest. Ash seemed to grow up a lot and I still adored him as much as I did him in the first book. I missed Meghan's point of view and wished that it wasn't just Ash's point of view. Her voice and attitude were more engaging to me. The plot wasn't as exciting either and not as many remarkable events happened. Even with those drawbacks, I still enjoyed the book. This was partly due to Kagawa's flawless writing and how the stories were resolved. If you haven't read the first three books in this series, I would recommend reading those books now. You won't regret it.