"El obsceno pájaro de la noche" is a novel written by Chilean author José Donoso, published in 1970. The story is set in a decaying mansion and follows the life of a character named Héctor, who grapples with themes of isolation, madness, and the nature of reality. The narrative blends elements of magical realism and psychological exploration, reflecting the complexities of human existence. The novel is notable for its intricate structure and rich symbolism, often delving into the darker aspects of society and the human psyche. It is considered a significant work in Latin American literature, showcasing Donoso's unique style and his ability to intertwine personal and collective experiences.