An ingenious code hidden in the works of Leonardo da Vinci. A desperate race through the cathedrals and castles of Europe. An astonishing truth concealed for centuries . . . unveiled at last. While in Paris, Harvard symbologist Robert Langdon is awakened by a phone call in the dead of the night. The elderly curator of the Louvre has been murdered inside the museum, his body covered in baffling symbols. As Langdon and gifted French cryptologist Sophie Neveu sort through the bizarre riddles, they are stunned to discover a trail of clues hidden in the works of Leonardo da Vinci—clues visible for all to see and yet ingeniously disguised by the painter. Even more startling, the late curator was involved in the Priory of Sion—a secret society whose members included Sir Isaac Newton, Victor Hugo, and Da Vinci—and he guarded a breathtaking historical secret. Unless Langdon and Neveu can decipher the labyrinthine puzzle—while avoiding the faceless adversary who shadows their every move—the explosive, ancient truth will be lost forever.

In 2045, Psychwatch treats the mentally ill or cages them. Margo wants to bring empathy to every patient but a killer pushes her, and the system, to the limits ***** In a dark future, more than a third of the United States population suffers from mental illness and violent crime is on the rise. In response, Psychwatch is formed - an organization intended to combine mental healthcare and law enforcement - creating monitored areas and neglected ones known as the Psycho Slums. Margo Sandoval is the latest recruit to Psychwatch, bringing a new level of empathy to the controversial agency known for its unforgiving methods. Margo spends her days as an Empath treating everyone possible, until the arrival of a new serial killer upends her life and forces her to confront the evils of the human mind and the system that claims to be the solution.