Wow - that one word sums up this book! Recommended to me by a dear friend, this book is shockingly good with buildup and development in the story that will leave you saying “wow”, “what?!?” And “no way!”. The writing is excellent - Lupton builds detail and description into her story that is intriguing and a joy to read. I think it’s more well written then some of the trendy psychological thrillers I’ve read lately. I don’t have a sister of my own but I can understand the bond of sisters a bit better after reading this novel. Kindred spirits who are so connected emotionally that you truly are the ones who know and understand each other best. I highly recommend this book!