Like a true grownup, I stayed up until 2am on a Tuesday night to finish this book, and I only regret it a little in the rainy light of Wednesday morning. As of late, The Raven Cycle has been one of my favorite YA series, and The Raven King cemented its spot in my heart. While I'm sad the series has reached its end, I'm more or less completely satisfied with how it ended and where the characters ended up (and am looking forward to re-reading all four books soon).(view spoiler)[ 
 As the book says, "[I] wanted to get to the end to find out how it went, and [I] didn't want it to be over." The characters are well developed, diverse, and somehow believable in all their impossibilities. The development of all their relationships was wonderful, and felt truthful to me - complicated in a way where the happy endings weren't too easy, too perfect, but rather felt deserved. In the end, I will understand if someone shouts "deus ex machina" at the ending, but in a book full of magic, I wouldn't expect anything less and it didn't feel cheap or easy to me. 
 A final note - my favorite passages in this book have to be the times when Ronan thinks / talks about Adam. Maggie Stiefvater gives me goosebumps and takes my breath away at times with Ronan, which was extra surprising because I didn't really like him all that much at the beginning of The Raven Boys, and now he might be my favorite character in a cast of wonderful characters. (hide spoiler)]