Hidden Valley Road raises the bar on what is possible in narrative nonfiction. A marvel of reportage, research, and style, Robert Kolker dives into the exceptional story of one family besieged by humanity’s most mysterious malady. Kolker writes about the Galvin family with elegance and insight while weaving together the decades-long quest to understand the genetics of schizophrenia, somehow creating a story that is as haunting and intriguing as a great gothic novel. This book is a triumph, an unforgettable story that you should read right now.”