Mary Beth Keane, named one of the 5 Under 35 by the National Book Foundation, has written a spectacularly bold and intriguing novel about the woman known as "Typhoid Mary," the first person in America identified as a healthy carrier of Typhoid Fever. On the eve of the twentieth century, Mary Mallon emigrated from Ireland at age fifteen to make her way in New York City. Brave, headstrong, and dreaming of being a cook, she fought to climb up from the...