I found this book to be very average. It was an interesting concept, but it fell flat. The challenges Rielle undertook were ok.  The switch between Rielle and Eliana every chapter was a bit annoying as I would forget what had happened in their previous chapter. Overall, I did like this book, but not a lot. I’m interested to see what happened in order for us to get to the start of the book and that’s the only reason I’m continuing the series.