But as he did so a frightful spasm of horror shook him, and for an instant the blood rushing to his head shut out all the light of the full moon. Once more he saw that fatal image of himself moving beyond the quicksand from the opposite rock to the shore. The shock was all the greater for the contrast with the spell of peace which he had just enjoyed; and, almost paralysed in every sense, he stood and watched the fatal vision and the wrinkly, crawling quicksand that seemed to writhe and yearn for something that lay between. There could be no mistake this time, for though the moon behind threw the face into shadow he could see there the same shaven cheeks as his own, and the small stubby moustache of a few weeks’ growth. The light shone on the brilliant tartan, and on the eagle’s plume. Even the bald space at one side of the Glengarry cap glistened, as did the cairngorm brooch on the shoulder and the tops of the silver buttons. As he looked he felt his feet slightly sinking, for he was still near the edge of the belt of quicksand, and he stepped back. As he did so the other figure stepped forward, so that the space between them was preserved. So the two stood facing each other, as though in some weird fascination; and in the rushing of the blood through his brain Markam seemed to hear the words of the prophecy: “See thyself face to face, and repent ere the quicksand swallow thee.” He did stand face to face with himself, he had repented—and now he was sinking in the quicksand! The warning and prophecy were coming true. Above him the seagulls screamed, circling round the fringe of the incoming tide, and the sound being entirely mortal recalled him to himself. On the instant he stepped back a few quick steps, for as yet only his feet were merged in the soft sand. As he did so the other figure stepped forward, and coming within the deadly grip of the quicksand began to sink. It seemed to Markam that he was looking at himself going down to his doom, and on the instant the anguish of his soul found vent in a terrible cry. There was at the same instant a terrible cry from the other figure, and as Markam threw up his hands the figure did the same. With horror-struck eyes he saw him sink deeper into the quicksand; and then, impelled by what power he knew not, he advanced again towards the sand to meet his fate. But as his more forward foot began to sink he heard again the cries of the seagulls which seemed to restore his benumbed faculties. With a mighty effort he drew his foot out of the sand which seemed to clutch it, leaving his shoe behind, and then in sheer terror he turned and ran from the place, never stopping till his breath and strength failed him, and he sank half swooning on the grassy path through the sandhills.