More than a century ago, there was a 7-year-old boy who dreamt of a "green great dragon" and wrote his first short story about it.
He grew up, but he continued to dream -- of goblins and elves and wizards -- and one day he found himself writing: "In a hole in the ground, there lived a hobbit."
That little boy was John Ronald Reuel Tolkien, better known today as J.R.R. Tolkien. And from that hole in the ground emerged a whole world -- Middle Earth.