Bilbo met a Gollum. Gollum lived on a slimy island in the dark lake. Gollum can eat goblins, but he also likes riddle.
What have I got in my pocket? This riddle is not fair for Gollum.
Bilbo got a ring! It’s Gollum’s birthday present! Bilbo Baggins, he is a thief!
Now the ring made Bilbo invisible. He escaped the cave from goblins!