NEW YORK TIMES BESTSELLER - The million-copy bestseller Lilac Girls introduced the real-life heroine Caroline Ferriday. Now Lost Roses, set a generation earlier and also inspired by true events, features Caroline's mother, Eliza, and follows three equally indomitable women from St. Petersburg to Paris under the shadow of World War I. "Not only a brilliant historical tale, but a love song to all the ways our friendships...