Before, some time later...
A company of Men and Elves (and a two-headed Hobbit) marches through the abbey's razed courtyard above, into its broken chapel, then traverses a broad spiral stair that winds its way into the basal through the great 30ft wide hole in the middle of the chapel floor. Once in the basal they light torches and navigate a dog-legged passage, past a known pit trap, past the wolf effigies on the walls, to arrive once more here; in the long, dark hall that houses The Ring!