Mutton, Karen: - Karen Mutton is a retired ancient history teacher, author, lecturer, world traveler and mother of three. She has written five books on ancient history and finance. Subterranean Realms is part of her "Realms" series, after Sunken Realms and Water Realms. Residing in Australia with her husband, daughter and cat, she enjoys researching, writing, socializing with family and friends as well as traveling to foreign countries to appreciate their culture and history. She lives in Sydney.