Biologist Elizabeth Blackburn (born. 1948) is a prize-winning scientist. She is renouned for groundbreaking research on telomeres, i.e. chromosome ends. She made headlines in 2004 when she was dismissed from the President's Council on Bioethics after objecting to the council's call for a moratorium on stem cell research and protesting the suppression of relevant scientific evidence. In this biography Brady tells exactly how Blackburn made her scientific discoveries. She explores Blackburn's struggle to break down barriers in an elite, male dominated profession, her role as a mentor to other women scientists, and the collaborative nature of scientific work. She also portraits the private person, who had the wisdom to hide her vast ambition beneath the guise of a sweet, well-behaved young lady.