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".
Gollum
Gollum left his cave in pursuit of Bilbo a few years after losing the Ring, but the trail was cold. He made his way to the edge of Mordor, where he met the monstrous spider Shelob and became her spy, worshipping her and bringing her food. He was eventually captured by Sauron's forces and tortured, revealing to Sauron the names of "Baggins" and "the Shire". His testimony alerted the Dark Lord of Mordor to the existence and significance of Hobbits in general and the Baggins family in particular. He was freed, but was soon caught by Gandalf and Aragorn, who interrogated him about the Ring and placed him in the care of the Wood Elves of Mirkwood. He escaped them (with the help of Sauron's Orcs) and descended into Moria.