After a peaceful year running their Frisian estate, Harald and Selia are called to Engla-lond.
Their return is marked by violence and intrigue. The king has vowed to Queen Emma that their son, Harthacnute, will inherit the throne, but the atheling is cruel and reckless. Many view Harald as the better choice, which makes him a target for the unseen supporters of his half-brother. King Cnute urges Harald to be prepared to assume the throne should Harthacnute prove inadequate. Harald resists being swept up by forces beyond his control, but doubts he will survive the reign of King Hartha.
And what of his older brother, Sweyn?