I really loved the main character because she is willing to stop at nothing to save her sister from the same fate that she was stuck with.

Check out my review of "The Black Key" on my blog at:
http://axarr.blogspot.com/2016/10/review-wednesday-black-key-by-amy-ewing.html

When I first held the book, I was a bit concerned with its size. It was so tiny in comparison to all the other books I was reading at the time! But I guess you can't judge a book by its size as much as its cover, I was just a little concerned with content amount. The author made this whole book very intense by connecting it right from the second book and hitting a high note from the start. It still escaladed from there, as any final book in a series/trilogy would. I like how in the first book the girl is trapped in the Jewel, in the next one she rises a bit, and in this book she is shown surrounded by fragments. It really reminds me of Matched. 5/5 stars.
- @Siri of the Teen Review Board of the Hamilton Public Library

The Black Key is one of my favourite last books of a series. Everything wrapped up so beautifully I didn’t feel like I was missing anything at all. I felt like everything was in check and perfect because it all came to a pleasant end. Ewing really hits the mark because she covers all the aspects we have been introduced too. Violet has changed, but not a lot, so we still see the young girl we have grown to love. Alongside her team, she plans to overthrow the Jewel using the powers that the royals have tried so hard to mask away. The auguries are behind her now, and Violet is more ready than ever to pursue her dream of freeing her sister Hazel from the evil Duchess of the Lake. Uniquely written and portrayed, The Black Key has Violet back in the palace which she so happily left in disguise, and more than ever willing to risk her life to save others. A great uplift and fast paced read. Rating 4/5
- @jewelreader of the Teen Review Board of the Hamilton Public Library

I loved the first book in this series. But the rest of the books have been a disappointment. There is not enough action and the ending is easy figure out.