Gollum
Gollum is a fictional character from J. R. R. Tolkien's legendarium. He was introduced in the 1937 fantasy novel "The Hobbit", and became an important character in its sequel, "The Lord of the Rings". Gollum was a Stoor Hobbit of the River-folk, who lived near the Gladden Fields. Originally known as Sméagol, he was corrupted by the One Ring and later named Gollum after his habit of making "a horrible swallowing noise in his throat".
The Two Towers
Gollum then leads the hobbits to the Cross Roads where they see a vandalized statue of a king of Gondor. They then reach the evil city of Minas Morgul, and Frodo watches as the Witch-king leads the Morgul army out and toward Minas Tirith. They then climb up a long, steep staircase of the Cirith Ungol and into a tunnel when Gollum disappears. The tunnel is actually the lair of an enormous spider named Shelob. Gollum hopes to get the Ring from Frodo's bones after Shelob is done with him. The hobbits escape Shelob in her lair using the light of the Phial of Galadriel and mistakenly assume that they are safe. However, Shelob sneaks up on Frodo. Sam attempts to warn Frodo but is attacked by Gollum. Shelob stings Frodo in the back of the neck and he collapses to the ground. Sam fends off Gollum, who runs off back towards Shelob's cave. Sam then fights Shelob, and eventually drives her off by wounding her with Frodo's blade, Sting and the Phial.