“So now at last the City was besieged, enclosed in a ring of foes.” And in the next few pages Tolkien relentlessly builds a picture of hopelessness as the hosts of Mordor begin the assault upon Minas Tirith until he reaches the appalling climax of the winged ride of the Nazgûl.

“Ever they circled above the City, like vultures that expect their fill of doomed men’s flesh. Out of sight and shot they flew, and yet were ever present, and their deadly voices rent the air. More unbearable they became, not less, at each new cry. At length even the stout-hearted would fling themselves to the ground as the hidden menace passed over them, or they would stand, letting their weapons fall from nerveless hands while into their minds a blackness came, and they thought no more of war; but only of hiding and of crawling, and of death.”

And…