Beth Underdown is a British author known for her historical fiction. She gained recognition for her debut novel, The Witchfinder's Sister, which explores the life of a woman connected to the infamous witch hunts in 17th-century England. Underdown's writing often delves into themes of power, gender, and societal norms. In addition to her novels, Underdown has a background in academia, having studied at Oxford University. She is also involved in teaching creative writing, sharing her expertise with aspiring authors. Her work has been praised for its rich detail and engaging storytelling.