Sarah Ferguson, who was married to Prince Andrew, has released her first adult novel, called Her Heart for a Compass. The book is based on her ancestor, Lady Margaret Montagu Douglas-Scott, but follows an imagined storyline developed by Fergie. The Duchess of York is already well-known for her memoirs and her children's books but this is the first time she has ventured into a book for adults, something she called a dream come true.
