"Lost Horizon" is a novel written by James Hilton in 1933. The story follows a group of travelers who, after a plane crash in the Himalayas, discover a hidden utopia called Shangri-La. This mystical place is known for its peace, longevity, and harmony, contrasting sharply with the outside world. The protagonist, Robert Conway, is a British diplomat who becomes enchanted by Shangri-La's serene lifestyle. As he grapples with the choice between returning to his chaotic life and staying in this idyllic paradise, the novel explores themes of escapism, the search for meaning, and the impact of modern civilization.