Where to begin... I didn't like how this book began. I was still on the cliffhanger wanting to know what happened to Cinder from the ending of the first book. The main characters shifted in this book from Cinder and Kai to Wolf and Scarlet. When I began reading this book I had the expectation that I would be getting more of the Cinder story but was hugely disappointed. I really feel like the chapters regarding Scarlet and Wolf should have been a spin off series rather than part of the Lunar Series. Also the whole Wolf/Werewolf thing has been done, redone, and overdone. If I had read this book before all the werewolf fandom I would probably have a different viewpoint on the Scarlet / Wolf side story, that took over this book. 
 The book partially redeemed itself by the ending, regarding Scarlet's grandmother. I have a soft spot for grandmothers (view spoiler)[ and this part made me cry (which isn't an easy feat for books). I also liked how the author tied the stories together however I don't know how exactly Cinder knew where to find Scarlet? All Cinder knew was that Scarlet went to go look for her grandmother... (hide spoiler)] 
 I loved the sections with Cinder and Thorne, I just wish I would had gotten more of it. Thorne's character is witty, charming, charismatic, and a bad boy ;). I did like Cinder's character development in this book. 
 (view spoiler)[ Scarlet's grandmother also seemed to think that Dr. Logan Tanner is still alive... It wouldn't surprise me if he still is... Cinder was rumored to have died in the fire... Maybe Logan Tanner was rumored to commit suicide to throw those looking for him off his path... Same with Cinder's stepfather... rumored to have died from the plague... he could still be alive out there... Then Earth could create their own army of Lunar Immune Solders. (hide spoiler)]