Cartoonist Kate Beaton has momentarily lapsed into prose, with a story about the Canso Causeway in a new Alberta-based literary magazine called, fittingly, Eighteen Bridges. I once watched a travel show where Billy Connolly, the Scottish entertainer, journeyed across Canada. In Halifax, he expressed a distaste for the whooshing tartans, skirling pipes, and other superficial expressions of Scottishness, which he deemed tawdry and inauthentic. It was disheartening, because if he really wanted authenticity, he could have just called me up. I would have recited one of those tragic old Gaelic songs that have been a Cape Breton staple ever since Authentic Scottish...