Another beautifully paced and intricately plotted novel to cap off this series! I devoured this book, just like the others in the series. It had everything I loved from the previous novels and more - great characters, great action, great fight scenes, and a really really really interesting world. It was let down by a lack of detail/consistency in the final chapters, where everything felt a bit rushed and shallow. 
 My issues with the book were mainly related to plotholes or things left unresolved, which is a real shame. Like many, the final climax put me off a bit, as a lot of new things were introduced very quickly and left largely unexplained with an abrupt ending. Given the care and dedication put into building the world we knew, I expected more detail overall. 
 (view spoiler)[ 1 - I understand that Kelsea/Katie needed to kill Jonathan and Row in order to ensure true equality in the new society, but that scene could have been described better. 
 2 - The perspective shift to Row made it really hard to understand the progression of events, and we hadn't heard from his voice at all before, so it was weird. 
 3 - It wasn't entirely clear that Row was dead. 
 4 - There wasn't a lot of preparation for the "ghost coming out of Katie's body" thing. It felt really unbelievable in the world, and the same outcome could have been achieved without going into the "ghost" place so it was ultimately unnecessary. 
 5 - Kelsea's character arc felt incomplete, as she hadn't yet come to terms with her new life. 
 6 - Given the complexity of the 'other' Tearling world, it felt odd for Kelsea to just accept the new Tearling's utopia at face value. I would have expected a more nuanced exploration of that, given how deep the discussion of these ideas has been over the last few books. (hide spoiler)] 
 I didn't hate the ending as much as some others did (the premise of the timey-wimey shenanigans didn't bother me at all, I thought it was great!) but there were definitely issues with the execution. I know it's cliche to say you want more from a great series, but I really think this needed more to make it fully realised.