This renowned novel is a sweeping exploration of memory, love, art, and the passage of time, told through the narrator's recollections of his childhood and experiences into adulthood in the late 19th and early 20th century aristocratic France. The narrative is notable for its lengthy and intricate involuntary memory episodes, the most famous being the "madeleine episode". It explores the themes of time, space and memory, but also raises questions about the nature of art and literature, and the complex relationships between love, sexuality, and possession.

The novel centers around a mysterious and charismatic adolescent, Augustin Meaulnes, who arrives at a rural school in Sologne, France, and quickly becomes the focus of intrigue among his peers. The story is narrated by his friend, François Seurel, who recounts the adventures that ensue when Meaulnes stumbles upon a surreal estate where a lavish party is taking place, leading him to meet and fall for the enchanting Yvonne de Galais. The tale weaves themes of lost love, yearning, and the painful transition from the innocence of childhood to the complexities of adulthood, as Meaulnes becomes obsessed with finding the estate and Yvonne again, embarking on a quest that will profoundly affect all involved.