The Kingdom of Back is a historical and fantasy novel that portrays Maria Anna (Nannerl) Mozart’s life through 18th-century Europe as the older sister of the legendary musician, Wolfgang Amadeus Mozart. Nannerl was also a talented musician and composer, but young women were forbidden to compose music; therefore, she had no chance to be remembered or honoured as a respectable musician. However, her beloved brother Wolfgang was easily shining brighter every day and stealing all the fame she should have received as well. Nannerl was extremely afraid to be overshadowed by her equally gifted brother since he began his successful music career at 5 years old. Furthermore, the gender inequality in their society oppressed her as a female and her future lies in a marriage, not music. She felt utterly despaired until a mysterious princeling boy from a magical land came to offer her a divine bargain to make her dream come true. 

I enjoyed this book because I was fascinated by how Marie Lu incorporated magic, music, and fantasy into a historical novel. She also revealed Nannerl’s intricate and complex personality through numerous aspects. Most importantly, I was very surprised to find out that the famous pianist Wolfgang Amadeus Mozart had an older sister who he admired and loved so much. I appreciate that Marie Lu brought her existence to life and understand her struggles as a girl during 18th century Europe.