CHAPTER I.INTRODUCTORY North-West Donegal.  A fine afternoon in September.  The mountain ranges were bathed in sunshine and the scarred and seamy face of stern old Errigal seemed almost to smile.  A gentle breeze stirred the air and the surface of the lakes lay shimmering in the soft autumnal light.  The blue sky, flecked with white cloudlets, the purple of the heather, the dark hues of the bogs, the varied greens of bracken,... more...