I liked the premise (I adore reading letters as fiction, and mysteries) and had heard raving reviews about this book. However, I borrowed it from the library and in the three weeks I had it, I couldn’t manage to be intrigued enough to finish. I made it about 80 pages in. The “letters” weren’t nearly close enough to letters, since they include large back and forths of dialogue and action that read a lot more like a regular narrative. So the “letter” format struck me as more pretentious than serving the story in any way, except for the very beginning of the story and how the book was framed (again, loved the premise!!). I may give this another shot someday, but for now it’s going in my DNF pile.