I was sent this ARC in exchange for an honest review. 
 This review was also posted on my blog, thisisjustabookblog.tumblr.com 
 This book didn't start off very well, getting better as it went, though it did leave me scratching my head. 
 The reason I wasn't too impressed with this book at the beginning was because the main character, Lillie, seemed to be a horrible person. She was so judgemental, and slut-shamed just about everyone else, but especially her so-called friend Sylv. One of my biggest book turn-offs has to be when the main character calls other girls sluts or tarts or is just judgmental about the way they dress and the way that they act around boys. It's just horrible. Melissa was her 'enemy' in the novel; the apparent competition for the love interest. And, as YA tradition dictates, she was treated as a horrible person; she had no redeemable characteristics, was shamed for her sexual experiences and the way that she dresses, and we were told that she used to be friends with the protagonist but then she just changed and became a bitch. And it wasn't just the way she treated other girls - she was judgmental and harsh about just about everyone. 
 However, it wasn't long before I did find myself being pulled into the story, and it turned into a bit of a page-turner. Ingrid Jonach, despite her faults in Lillie's character, turned out to be a great writer. I thought she had a really great way with words, which meant that I was carried through the novel quite quickly, because it was so easy to read. 
 The plot wasn't quite so easy to follow. I don't want to give too much away, as my version was an ARC, but I don't believe the science-fiction elements were made clear enough, or the repercussions discussed enough. Nor do I believe Lillie's reaction to the revelations were particularly believable. The science-fiction element sort of reminded me of Tempest, actually, which I also found a bit confusing. There were far too many questions brought up that were never answered to my satisfaction, and I didn't like the implications that some of the science brought about. 
 There was also an element of instalove, the terrible disease that has permeated every nook and cranny of YA fiction. So the love part of the story was alright, but it was a bit cliched and over-the-top. 
 Basically, by the end of the novel, I was left kind of confused and with a lot of questions that I wanted answered but it doesn't look like they will be. I wasn't sure what to think of the ending, either. 
 In summary, the writing style basically carried the rest of the book, which oscillated between being quite engaging and full of YA tropes that annoy the hell out of me. I'm still not sure what to think about it, to be honest.