'Gwenhwyfar, daughter of Ogyrfan Gawr, Bad when little, worse when great...'; Britannia, 481 AD.

Artorius has reigned as High King for two years. After his shattering victory at Mount Badon, an uneasy peace reigns over the land. The squabbling British kingdoms cling on in the West, while to the East the Saxons under Cerdic lick their wounds, waiting for a new generation of warriors to grow to manhood.

Artorius is still unmarried, and faces increasing pressure from his nobles to take a wife. When civil war threatens, he finds a bride in the person of Gwenhwyfar, eldest daughter of the King of Powys. In return for his promise of protection, Gwenhwyfar agrees to marry the High King and live with him in the new British capital at Caerleon. Wolves circle the royal couple. Britannia is threatened by Scotti pirates ravaging his coasts, plundering at will, and carrying off treasure and slaves. Artorius raises an army and sails to Hibernia, where he plans to defeat the Scotti tribes and capture the fabled Cauldron of Annwn.

With the aid of Bedwyr, Gwenhwyfar is left to rule in his stead, and must survive assassination attempts and savage barbarian invasions. Book Three of the Leader of Battles series chronicles the rise of Gwenhwyfar, better-known as Guinevere, Queen of Camelot. Drawing on Welsh folklore, the glory and tragedy of Sub-Roman Britannia are seen through the eyes of a woman who struggles to control her own fate, even as darkness begins to fall over her husband's kingdom.