Greta Wells is a fictional character from the novel "The Impossible Lives of Greta Wells," written by Andrew Sean Greer. The story follows Greta as she navigates her life in New York City during the 1980s, dealing with personal loss and emotional struggles. As the narrative unfolds, Greta experiences time travel, finding herself in different eras, including the 1920s and 1990s. This journey allows her to explore various aspects of her identity and relationships, ultimately leading to self-discovery and healing. The novel blends elements of historical fiction and magical realism.