The background to the entire Lord of the Rings epic, and the world of middle-earth. The Silmarillion is Tolkien's first book and his last, the core of his imaginative work that underlies all his writings about Middle-earth. Here are the legends of the Elder Days, the central stories that give meaning to the events of The Lord of the Rings and The Hobbit. Tolkien began The Silmarillion in 1917 and worked on it, changed it, and continued it throughout his life. Edited by his son, Christopher Tolkien, the book finally appeared four years after the author's death, in 1977. The three Silmarils were jewels created by Feonor, the most gifted of the Elves, and within them gleamed the light of the Two Trees of Valinor. But they were stolen by Morgoth, the first Dark Lord, setting off the major war of the First Age.