"Digenis Akritis" is Byzantium's only epic poem, telling of the exploits of a heroic warrior of "double descent" on the frontiers between Byzantine and Arab territory in Asia Minor in the ninth and tenth centuries. It survives partially in six versions, of which the two oldest are edited here. This edition and translation aims to highlight the nature of the lost poem, and to provide a guide through the maze of recent discussions about the epic and its background.