A NEW YORK TIMES EDITOR'S CHOICE "A compelling story that pulsates with the energy of a thriller"--The Wall Street Journal "Suspense, lan and a generous helping of glamour: Think George Smiley in a mink-trimmed coat."--The New York Times Book Review The true story of socialite Marguerite Harrison, who spied for U.S. military intelligence in Russia and Germany in the fraught period between the world wars...