What a thought provoking book. As the cover says, the twist is incredible. Personally, I didn’t see it, but I am going to re-read it to see if I missed out on the clues. I loved how Karen, told bits of the story or as she put it, the beginning of the middle, the end of the beginning all in a jumbled order. So as a reader you are constantly trying to fill in the gaps, especially when midway through the book the twist happens and you are suddenly a lot more intrigued in the story of Rosemary and her sister Fern.