The Hobbit

Gollum is a small, slimy creature who lives in the middle of a lake in a deep, dark cave in the Misty Mountains. Bilbo finds Gollum’s ring, and he and Bilbo exchange riddles to see if he will lead the hobbit out of the cave or eat him. Gollum loses the riddle game, and Bilbo uses the ring to turn invisible and escape from the creature.