This is my first experience with Ruth Ware. I found this novel engrossing. Ware created an atmosphere that was both fascinating and creepy, telling a story with some twists that I did not see coming. Most of the book is one long letter from a nanny who is accused of murder to a prominent lawyer. This story did keep me turning the pages!

I thought the ending very effective--the note from the younger sister, which functions as the great reveal, and the fact that the first note was not sent on. So, in the end, Rachel surely faced a death sentence, rather than bring down any more pain to this family. That was touching. Will anyone ever find out, and know what she's done? That is the final question, which goes unanswered.