Denise Kiernan is an author, journalist and producer. She has worked in television, serving as head writer for ABC's "Who Wants to Be a Millionaire". Her writing has appeared in publications like the New York Times and the Wall Street Journal. She's written several non-fiction works,  Her previous title, The Girls of Atomic City, was a New York Times, Los Angeles Times, and NPR Bestseller and has been published in seven languages. Today we'll be talking about her newest book, The Last Castle: The Epic Story of Love, Loss, and American Royalty in the Nation's Largest Home.