At an internment camp in Indonesia, forty-seven people are pronounced dead with acute hemorrhagic fever. When Henry Parsons - microbiologist, epidemiologist - travels there on behalf of the World Health Organization to investigate, what he finds will soon have staggering repercussions across the globe ... In this riveting medical thriller - from the Pulitzer Prize winner and best-selling author - an unlikely but appealing hero, races to find the origins and cure of a mysterious new killer virus as it brings the world to its knees.