Shelob is a giant spider and a character from J.R.R. Tolkien's fantasy world, primarily featured in "The Lord of the Rings." She resides in a dark cave near Cirith Ungol, where she preys on unwary travelers. Shelob is known for her cunning and strength, making her a formidable foe. As a descendant of the ancient spider Ungoliant, Shelob embodies the themes of darkness and corruption in Tolkien's work. Her presence adds to the peril faced by the protagonists, particularly Frodo Baggins and Samwise Gamgee, as they journey to destroy the One Ring.