In the context of the EU referendum, the border of the United Kingdom with Ireland has gained significance: it becomes the border with the European Union. To explore the mysterious landscape with its tumultuous past and uncertain future, Garrett Carr traveled on foot and by canoe along the Irish border. This invisible line has been the scene for smugglers and kings, refugees, peacemakers, protesters, and terrorists, revealing the turmoil of a border that alters our perception of nationality, land, and power. From encounters with border residents to the discovery of rituals, hidden paths, and ancient monuments, this book presents the borderland as a unique space and questions what the future holds for it.