The simmering pot that is Henrietta boils over in the final book in a blur of ancient magics, modern mercenaries, kissing, education, and plenty of tears (mostly from the reader). Stiefvater skillfully draws in new characters to make this book just as tumultuous, perilous, and beautiful as the others. I loved learning more about Noah, and knowing that the friendships on the page would last long after the story has officially ended.