Hmm. I find it hard to write a review of this book because I both loved it, and was slightly disappointed by it. When I find a book that I will lose sleep over just to continue reading, I know I love it, and I loved this. But then... the end happened. I rushed to Goodreads at the end of the book to read reviews and see if I missed something. It was just so simple. I expected some sort of twist, and although everything is.. mostly connected, there was no huge revelation (unless you count the stolen manuscript one.. but I think Krauss made that pretty clear earlier on). So .. I will give it a 4 star because I read it faster than I read most books, found it beautiful and adored Leo's character, but it misses the last star for missing something, though I'm not sure exactly what.