"Twenty Thousand Streets Under the Sky" is a novel by Patrick Hamilton that explores the lives of working-class individuals in London during the early 20th century. The story follows the intertwined lives of three main characters: Bob, a pub worker; Ella, a barmaid; and Henry, a romantic dreamer. Their struggles with love, ambition, and the harsh realities of life are central themes in the narrative. Set against the backdrop of the bustling streets and pubs of London, the novel captures the essence of urban life and the complexities of human relationships. Through vivid descriptions and rich character development, Hamilton paints a poignant picture of hope and despair in a rapidly changing society.