For me, The Iron Queen was a beautiful conclusion befitting of the faerie trilogy. Meghan has grown so much as a character, from the girl we saw in the first book who went into the Nevernever to rescue her brother to the girl fighting for the future of the Faery realm. 
 I loved how the different elements and characters introduced throughout the first and second books all come together in the third to form a coherent and well-bodied story. The characters were well-developed which I felt was a feat considering that when you have so many characters, they risk the chance of becoming token characters. 
 A big part of why I loved The Iron Queen so much more than its predecessors is due to Ash. He is fully capable of showing love and affection for Meghan and the ice prince facade he had was his way of protecting himself. There were of course, many scenes that captured my heart, especially the knight-and-his-lady scene but the one that completely broke was the one that separated them. I was literally tearing up when I read it because for me, to finally have Ash and Meghan together and then suddenly tore apart, was just heartbreaking. 
 The bittersweet ending of The Iron Queen made me simply itch to get The Iron Knight and I really can't wait to see if he succeeds in reuniting with Meghan.