Keeper of the Lost Cities Unlocked is different from the other books, but Shannon Messenger still did a great job with the content that you definitely don't want to miss. The first 3/4 of the book contains extras about the lost cities, like Sophie and her friends registry files, and the council keeps a VERY suspicious amount of information about them. Keefe also has his own detention record in the book, and Sophie has her own medical record. The book also features Keefe memories in art form. These full color illustrations are something you really want to see! There is recipes and information of everything you want to know about the lost cities, including things not mentioned before! The last part of the book is the story, which is told in Sophie and Keefe's perspectives. Sophie is desperate to unlock Oralie's cache to see if there is information about Keefe's new ability that could help them. But when Keefe figures out what he can do, he starts to become distant from his friends while he asks some elves to help him stop using his abilities. What he figures out can harm people's emotions, and even Sophie herself, which is something Keefe doesn't want to do. Sophie and her friends even have a new task, and when they finally uncover some lead into Keefe's legacy, things might start to make sense, until Keefe does something reckless that could put everyone he cares about at risk... I loved this book, and I encourage you guys to read it too! You need to read this book before book 9! Hope you love the book as much as I did!