This book sounded so promising with the mystery of a missing twin and the creepy hospital but I felt it missed the mark. The story is told in dual timeline and gives you an insight to the sisters. The current timeline didn't work for me and finding out what happened to Piper made no sense to me. 

The narration did a good job but the story just didn't work for me. 

Thank you @libro.fm for a copy of the book.