I should start off by saying that I've loved every book that Marie Lu has written. However, this felt different than her past books that I've read. I grew up wanting to major in music in college, so this idea of Wolfgang having a sister who creates music in a fantasy world has me hooked! I was engaged from the first page with thoughts of fairy lands and Austria. The writing is great and the world building feels true and not rushed. I am so excited to read the rest of the story and find out more about Nannerl and see if she becomes unforgettable.