2/3 of the book is regurgitating events and scenes that took place in previous books word by words. 
 The 1/3 that is new material is divided into two parts. The first part is how Bastien and Ember met and their history before they ended up on the run. That part was perfect. The pace was good. I was fully engaged with the characters. The second half of the new material is what took place after Born of Legend (The League, #9) ended. The action part was a disaster in my opinion. There wasn't enough details or pages on what was the most crucial part of the story. As a long time readers of the series, I felt I was let down.