My father's ancestors were the Shaws of Rothiemurchus, in Scotland, and the ruins of their castle may still be seen on the island of Loch-an-Eilan, in the northern Highlands. It was never the picturesque castle of song and story, this home of the fighting Shaws, but an austere fortress, probably built in Roman times; and even to-day the crumbling walls which alone are left of it show traces of the relentless assaults upon them. Of these the last and the most successful were made in the seventeenth century by the Grants and Rob Roy; and it was into the hands of the Grants that the Shaw...