In 1030 C.E. — When Harald, the second son of King Cnute, returns from fighting the king's enemies in Northern Wales, he expects his life to return to normal. He's surprised when he's granted a large landholding—an idyllic life, far from the power-mongering of King Cnute's court, farming in the Midlands, evening walks with his beloved Selia. It’s a gift they cannot refuse, but the king has other plans for Harald and his wife.

Oscar’s Tale is that of a Saxon boy who sets out to find and rescue his father who has been taken by Viking slavers. The story begins in 877, just prior to the Viking attack on Chippenham in which King Alfred was routed. Against this backdrop, Oscar is obliged to set out on his all but impossible quest and quickly becomes embroiled in all that’s going on in Wessex at this turbulent time, culminating in him playing a small but important part in the battle at Edington.