The fighting men of Ireland were gathering to repel Cromwell's invasion - and with them marched the Dowdalls under their brave chief Robert. The master swordsman of Europe, he returned to lead his kinsmen's steel against the invaders. Then, to the confusion of history, he vanished. - Here at last is his story - the story of Robert of Eire who marched to fight an Earthly foe only to find himself in desperate combat against beast men and alien warriors of another world.