Blue Nights by Joan Didion. From Amazon: “From one of our most powerful writers, a work of stunning frankness about losing a daughter.” Another reviewer says: “Although I loved her description of the blue nights, the book is about the death of her daughter and yet she never explains why her daughter died. Didion struck me as a name dropping, self-centered person. It was not nearly as moving as The Year of Magical Thinking - about her husband's sudden death.”