In this book, investigative journalist Jim Popkin weaves the tale of two sisters who chose two very different paths, plus the unsung heroes who had to fight to bring Ana to justice. With exclusive access to a “Secret” CIA behavioral profile of Ana, family memoirs, and Ana’s incriminating letters from prison, Popkin reveals the making of a traitor—a woman labelled “one of the most damaging spies in U.S. history” by America’s top counter-intelligence official. This is a thrilling detective tale, an insider’s look at the clandestine world of espionage, and an intimate exploration of the dark side of betrayal.