"The Custom of the Country" is a novel by Edith Wharton, published in 1913. It follows the life of Undine Spragg, a young woman from a middle-class background who seeks to climb the social ladder in New York City. The story explores themes of ambition, social status, and the complexities of marriage. As Undine navigates high society, she encounters various characters, including wealthy suitors and influential socialites. Her relentless pursuit of wealth and status leads to personal conflicts and moral dilemmas, ultimately revealing the emptiness of her aspirations. The novel critiques the societal norms of the early 20th century.