Gollum

Smeagol was one of the hobbits that lived near Anduin shortly after the death of Isildur. He was known as Gollum because of the sound of his throat.

The day of his birthday his friend Deagol gave him a present. Then they were fishing on the river with when Deagol noticed a ring and dived to take it. Smeagol wanted it for it was his birthday but Deagol already gave him. Smeagol strangled him and took it.

He lied to others that it was a present, until he was pressed hard and told the truth. When he wore it he became invisible and used it to learn secrets and create mischief, until he was expelled. He wandered until he entered the Goblin-town with the tunnels of the Orcs under the Misty Mountains. The One Ring prolonged his life and he used it to catch fishes and eat them raw. He withered and grew stretched. He almost forgot his own name and was talking to his precious ring.

The Ring corrupted his soul, and became a shadow of his former self. The Sun hurts him, his skin is thin and stretched, sly and cunning.

During the quest to Erebor, Bilbo Baggins found Gollum and won the Ring in a contest of riddles. Gollum failed to guess what the Hobbit had in his pocket, until he discovered that his precious was missing. But it was too late, Bilbo escaped and Gollum hates Bagginses for ever.

Sauron learned fro Gollum that his ring was held by some Baggins. After his capture, Gollum escaped Mordor through Cirith Ungol.