" Gandalf for certain this time,” he thought as he puffed along the passage. But it was not. It was two more dwarves, both with blue hoods, silver belts, and yellow beards; and each of them carried a bag of tools and a spade. In they hopped, as soon as the door began to open—Bilbo was hardly surprised at all. "

― J.R.R. Tolkien , The Hobbit