From the New York Times-bestselling author of Cutting for Stone comes a stunning and magisterial new epic of love, faith, and medicine, set in Kerala, South India, and following three generations of a family seeking the answers to a strange secret. With astonishing scenes of medical ingenuity, fantastic moments of humor, a surprising and deeply moving story, and characters imbued with the essence of life, this is a hymn to human understanding and a humbling testament to the hardships undergone by past generations for the sake of those alive today.