The hill of Errigal climbs like a wave to the sky. A pennon of white cloud tosses on its carn. Its sides are dark. They slope precipitously. They are streaked and mottled here and there with patches of loose stone, bleached to a soft violet colour with rain. Not a leaf of grass, not a frond of fern roots on these patches. They are altogether bare. Loch Nacung, a cold spread of water, gleams at the bottom, white as a shield and green at the margin with sedge. Dunlewy chapel, with its round tower—a black silhouette in the ’tweenlight—and the walls of the Poisoned Glen beyond.