As the ninth century wanes, England appears about to be plunged into chaos once more. For the Viking-raised but Saxon-born warrior, Uhtred, whose life seems to shadow the making of England, this presents him with difficult choices. King Alfred is dying and his passing threatens the island of Britain to renewed warfare.

Forty-one American ships and over nine hundred men. Their orders: to expel the British. The battle that followed was a classic example of how the best-laid plans can be disrupted by personality and politics, and of how warfare can bring out both the best and worst in men. It is a timeless tale of men at war, written by a master storyteller.

Uniting the restive British kingdoms behind him, Arthur believes he can now hold back the Saxons threatening the country. Meanwhile, Merlin sets out on a quest to uncover the sacred Treasures of Britain, hoping they will prove decisive in the coming battle. But in a country where the cult of the Christians is spreading, Merlin's quest is divisive. And the ambitions of the rival warlord Lancelot threaten the delicate peace. Could even those closest to Arthur be moved to betray him?

Arthur has crushed Lancelot's rebellion, but at a cost. Guinevere's betrayal has left him reeling, and his Saxon enemies seek to destroy him while he is weak. Chaos threatens to engulf Britain. Yet Arthur is a military genius and noble leader. As the battle draws close, he prepares to fight his way to victory at Mount Badon and also win back the woman he lost. But in the final journey of the warlord, the intrigues of Mordred, now the adult heir to the throne of Britain, and the magics of the priestess Nimue could prove to be Arthur's downfall.