In A Christmas Carol, why did the Ghost of Christmas Yet to Come not speak ?

The Ghost of Christmas Yet to Come is described as a phantom, and instead of speaking, he points throughout his time with Scrooge. Scrooge asks the ghost countless questions, but perhaps the most important is “ 'Answer me one question. Are these the shadows of the things that Will be, or are they shadows of things that May be, only?' " (Stave Four, 10). Because the Ghost is mute, Scrooge doesn't receive an answer to...

The Ghost of Christmas Yet to Come is described as a phantom, and instead of speaking, he points throughout his time with Scrooge. Scrooge asks the ghost countless questions, but perhaps the most important is “ 'Answer me one question. Are these the shadows of the things that Will be, or are they shadows of things that May be, only?' " (Stave Four, 10). Because the Ghost is mute, Scrooge doesn't receive an answer to his question. The ghost continues to point to Scrooge's untended grave as an answer. Scrooge finally looks at the grave in horror.

So, why doesn't the Ghost speak? Perhaps this last Ghost is silent to show Scrooge that he really does have free will to change the future. By not giving Scrooge definite answers to his questions, the future appears changeable if Scrooge changes his present course of action. The Past has already been written, the Present is occurring, but the Future is unknown. The theme of man controlling his own destiny is emphasized by this last ghostly visit. In fact, at the end of the tale, Scrooge does change the future the Ghost of Christmas Yet to Come showed him, and "he became as good a friend, as good a master, and as good a man, as the good old city knew, or any other good old city, town, or borough, in the good old world..." (Stave Five, 5).