Death doesn't terrify him—it's the coming of death, with monstrous wings, and a watcher among the trees.

“There is no one with whom I would not change places, Harry. Don’t laugh like that. I am telling you the truth. The wretched peasant who has just died is better off than I am. I have no terror of death. It is the coming of death that terrifies me. Its monstrous wings seem to wheel in the leaden air around me. Good heavens! don’t you see a man moving behind the trees there, watching me, waiting for me?”