Bilbo Baggins was greeted by Gandalf the Grey and a group of 13 Dwarves known as the Company of Thorin Oakenshield. He was offered to help them to take back Erebor from the dragon Smaug. At the Misty Mountain, he landed at a cave and met Gollum. He took Gollum's One Ring and went back to his Company. Decades after returning from Erebor, he celebrated his 111th birthday as well as his nephew Frodo's birthday. He wanted to keep the One Ring.