OMG. What do I say about this book without sounding psychotically obsessive? And without giving anything away? It's just so..... Oh, Lord, The Iron Daughter Is Just So Perfect. 
 It's even more than The Iron King. More danger, more suspense, more action, more romance, more.... Just More. 
 I can't really say anything about the story itself, cause that would totally be spoilers galore, but.... Personally, I laughed, and I cried, and I shivered and I squee'd like a little girl on Christmas all while reading this gorgeous story, and I cannot, cannot, cannot wait to see where Kagawa takes us all in the finale, The Iron Queen.