However, when it comes to Gandalf's arrival in the books, he doesn't roll into town until The Third Age, so this potential Mr. Grey is appearing far too early by Tolkien's count. Then again, given that Durin IV could be digging himself a hole in Khazad-dûm, which could lead to the Balrog, might the show tamper with the history books of Hobbits and the like on a grander scale than anticipated?