Mozart and Wolfgang. Say no more. The Kingdom of Back is a little different than what readers are used to from Marie Lu, and that’s what has me so interested in this book. I adored her Warcross Duology, I really liked her Legend trilogy, and I have no doubt that this is going to be a great book as well. I love an author that can keep surprising readers, and I’m definitely surprised with this newest. Mozart and Wolfgang! 18th century musicians!