I don't really do books as I struggle to keep focus most times. Not this one, I really couldn't put it down! Bought it hoping it will get me through a 2hr plane journey and next thing throughout my holiday I kept making excuses to read just one more chapter....! Very clever, with all the suspense I was hoping it won't end in some lame way once the writer has exhausted himself. It really didn't. As I finished it before the plane journey back I kept going back to passages to find only subtle clues.... very clever and written beautifully.