The Marches (2016)

Stewart walks across the ancient borderlands separating England and Scotland, exploring the vanished frontier kingdoms of Rheged and the lawless Debatable Lands. Accompanied by his octogenarian father, a former colonial diplomat, his journey interrogates how arbitrary border lines, Roman earthworks, and tribal divisions shape national belonging. It provides a tender, erudite exploration of marginal terrain where past sovereignties still echo in local dialects and stone dikes.