"Typhoid Mary" existed: in the early twentieth century, this stove, Irish immigrant in New York, was accused of infecting twenty people and to be the cause of death of three of them. The health authorities therefore continue, catch it and put it in quarantine on a New York island for over twenty years. I loved this fictionalized biography, narrative mastery Mary Beth Keane (which he does this is only the second novel), the depth of the main character and the evocation of 1900s New York. Beyond the story, exciting, the author raises the question of guilt, responsibility, identity (who am I if I am deprived of a fundamental part of my life?)