"Yüzüklerin Efendisi" (The Lord of the Rings) is a high-fantasy novel written by J.R.R. Tolkien. It was published in three volumes between 1954 and 1955. The story is set in the fictional world of Middle-earth and follows the quest to destroy the One Ring, a powerful artifact created by the dark lord Sauron. The main character, Frodo Baggins, a hobbit, inherits the ring and embarks on a perilous journey with a diverse group of companions known as the Fellowship of the Ring. Their mission is to reach Mount Doom, the only place where the ring can be destroyed, to prevent Sauron from regaining his full power.