“The New York Trilogy” is an astonishing and original book: three cleverly interconnected novels that exploit the elements of standard detective fiction and achieve a new genre that is all the more gripping for its starkness. In each story the search for clues leads to remarkable coincidences in the universe as the simple act of trailing a man ultimately becomes a startling investigation of what it means to be human. Auster’s book is modern fiction at its finest: bold, arresting and unputdownable.