PETER KURTH is the author of "Anastasia: The Riddle of Anna Anderson," "American Cassandra: The Life of Dorothy Thompson," "Tsar: The Lost World of Nicholas and Alexandra," and "Isadora: A Sensational Life," and co-author (with Eleanor Lanahan) of "Zelda: An Intimate Portrait." His work has appeared in Vanity Fair, Condé Nast Traveler, Forbes FYI, The New York Times Book Review, The New York Observer, Cosmopolitan, Harper’s Bazaar, and Salon.com.