Note (return) — Chapter XXI
Reading edition
Druids also made a "hedge," the airbe druad, round an army, perhaps circumambulating it and saying spells so that the attacking force might not break through. If any one could leap this "hedge," the spell was broken, but he lost his life. This was done at the battle of Cul Dremne, at which S. Columba was present and aided the heroic leaper with his prayers.1120