Emma is still coming to terms with everything that happened her junior year. So when everyone arrives back at school for their senior year except Levi, Emma is lost. Did Levi really not want to see her anymore or was Gravelle (the similars guardian) doing more experiments and mind control on him, and Emma now knows she is also a similar, as well as her best friend ever, Ollie now thinking of them more than friends, just might be more than she can take. But there are more surprises lurking in this book most you won't even see coming.
This is a action packed, suspense filled awesome conclusion to this series. I will miss it and more would have been nice but I am OK with how it ended. This is a roller coaster of a ride with tons of sharp twits and turns that will toss you around but the end of the ride is the wildest, so hang on for dear life.