The story of Lugh Mac Romain, harper and reluctant warrior, as he struggles to escape the curse of the Queen Maeve of Connaught for killing her king and is caught up in the famous Cattle Raid of Cooley by his friendship with the great Champion of Ulster, Cuchulain of Muirthemne.

Continues the story of Lugh, now no longer a warrior, as he makes his way in Roman Britain, becomes friends with the Roman soldier Karus and falls in love with the beautiful warrior-woman Liath Duv, and is once more caught up in large events as northern Britain erupts into revolt against the Romans, led by Cuchulain himself.