In a perfect marriage of author and subject, P. D. James--one of the most widely admired writers of detective fiction--gives us a personal, lively, illuminating exploration of the human appetite for mystery and mayhem, and of those writers who have satisfied it. "An avid book-length essay on the roots, ethics and methods of the detective story . . . Her opinions are often surprising and determinedly contrary . . . Refreshingly outspoken."--The...