"I am the guest of eagles, I am Ring-finder and Luck-wearer; and I am Barrel-rider" continued Bilbo. He was beginning to be pleased with his riddles.
"Ha! That's better! Said Smaug.
"There are thirteen of you dwarves, and thirteen is a very unlucky numbers. Mr. Baggins will be the fourteenth member of your party. Fourteen is a much luckier number."
"A very splendid lucky number you have chosen for us, Gandalf," Thorin said ironically.