This book had me HOOKED from the very first page. The mythology this book is based off of has a really unique twist to it that I found really interesting and awesome! I loved all the flashbacks, too. It really shows how much Nikki and Jack cared for each other even before Nikki was taken to Everneath, and the comparison of that relationship to what Cole is trying to accomplish with Nikki really shows how being an everliving changes you into something so heartless...literally. Nikki and Jack's relationship is so flawless and pure (view spoiler)[ that I almost cried at the end when he sacrifices himself for her. I really wish that she had told him about how HE was the one who brought her back and that thinking of him was the only thing that saved her, but I guess we can't have everything. 
 I don't care how sad Cole is at the end. He can get drained of energy by the queen for all I care. 
 Nikki will definitely get Jack back, but until then the fact that she is trying so hard for her brother is the absolute sweetest and most caring thing ever. 
 I also wanted to say that a lot of people criticize Nikki because she took so long to open up to people and acted really weird when she got back, but she was in Everneath for A HUNDRED YEARS. I can't really blame her for having some side effects from that. I mean people get mental disorders after being kidnapped for a decade, a century must have been horrible. 
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 I just can't even with this book. 
 It was really, REALLY good. Just go read it.