The Tale of Beren and Lúthien is the story of the love and adventures of the mortal Man Beren and the immortal Elf-maiden Lúthien, as told in several works of J. R. R. Tolkien. It takes place during the First Age of Middle-earth, about 6500 years before the events of his most famous book, The Lord of the Rings. Tolkien wrote several versions of their story, the latest written in The Silmarillion. Beren and Lúthien are also mentioned in The Lord of the Rings.