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 "Every form of art is another way of seeing the world. Another perspective, another window. And science-that's the most spectacular window of all. You can see the entire universe from up there." 
 I really wish I knew exactly why I love this book. I feel like before I got my hands on it I'd been in a drought of things that were lightheartedish (I feel like a lot of YA falls into this category, becuase even the dark YA they're still teens and I find hope~ in that), but were super engrossing. This book took me a bit to get into, I think it's because I was using the audiobook while working (this is when I was working for Litsy) and the best time to stop an audiobook is not in the very beginning. However, once I got into it I really got into it. I was quite literally hunting for more things to do so I had an excuse to keep listening to this book. 
 This book was toted as a Cloud Atlas meets Orphan Black, and while I've never read Cloud Atlas I've seen almost two seasons of Orphan Black and it doesn't really give me that feel. We follow Marguerite as she dimension hops trying to catch Paul who she believes has murdered her father. The creativity the author shows in the dimensions, the ones that are much like ours, and the ones that aren't, is astounding. Gray really seems to be a master of world building. She had to build multiple worlds within this book, and every single one made sense in context. It would have been easy for her to make the whole book about world building as well, and that didn't happen. What you get is a really engrossing story, with multiple worlds that are built well, dealing with realistic problems for the situations they get into. 
 Yes, there is a love triangle. It's YA Sci-fi. What did you expect? However, it's done extremely well, in my opinion, and didn't detract from the story. 
 The narrator on the audiobook is WONDERFUL and she also narrates the other two books in the trilogy and I can't wait to get my hands on them!