3.5 stars. This was an entertaining read. I really liked the concept of this story. However, the writing left much to be desired. Like aspects of the characters where just given to you instead of allowing you to see them for yourself. And I get why the author chose to do it, because the motifs of the inner dialogue corresponded with her overall plot, but I think there were better ways to do it. I enjoyed the plot though, like I really liked the book. Just execution leaves a whole lot be desired. I liked the main character Nyx, although both she and her sister came off as whiny. It's like you need a prequel novelette to this story so all the hub drum could be explained and the plot to take place. Ignifex and Shade were good characters, but bit underutilized. 
 But its a good YA book, and I'd recommend for someone who is a reading slump and wants a quick read to get out of it. 
 3.5 stars yay!