"Ripley Under Ground" is a novel by author Patricia Highsmith, published in 1970. It is a sequel to her earlier work, The Talented Mr. Ripley, and continues the story of the cunning and charismatic character, Tom Ripley. The plot revolves around Ripley's life in France, where he engages in art forgery and deception to maintain his luxurious lifestyle. The narrative explores themes of identity, morality, and the consequences of a life built on lies. As Ripley navigates his criminal activities, he faces challenges from those who threaten to expose him, leading to a tense and suspenseful storyline that keeps readers engaged.