I am extremely disappointed in this book. It feels almost as if the authors bit off more than they could chew. There was so much going on and so many issues being thrown at the reader that by the end nothing was resolved and nothing was explained. 
 I think a shorter, more condensed book with only a small focus on some issues would have helped. It really felt as if the authors were just writing as they went along and then decided to stop and end the book. 
 I'm also not sure why people would classify this as a thriller/mystery. There is a bit of a mystery, but I'll be honest it isn't really solved. 
 The book is heavy on the ballet terms and descriptions. I did like that aspect of it, but overall I thought it wasn't a very strong book.