All of Waylander's instincts had screamed at him to spurn the contract from Kaem the cruel, the killer of nations. But he had ignored them. He had made his kill. And even as he went to collect his gold, he knew that he had been betrayed.

Now the Dark Brotherhood and the hounds of chaos were hunting him, even as Kaem's armies waged war on the Drenai lands, intent on killing every man, woman, and child. The Drenai soldiers were doomed to ultimate defeat, and chaos would soon reign.

Then a strange old man told Waylander that the only way to turn the tide of battle would be for Waylander himself to retrieve the legendary Armor of Bronze from its hiding place deep within a shadow-haunted land. He would be hunted. He was certain to fail. But he must try, the old man commanded—commanded in the name of his son, the king, who had been slain by an assassin...

Waylander was the most unlikely of heroes—for he was a traitor, the Slayer who had killed the king...

Book Four finds Morgaine moving closer to the fate that will set her intractably against Arthur—her lover, brother, and now, enemy. Returning to Camelot during the Feast of Pentecost, Morgaine accuses Arthur of compromising the crown and demands that he return Excalibur to her. When he refuses, Morgaine arranges a confrontation between her lover, Accolon, and Arthur in the kingdom of Fairy, resulting in Accolon's death.

Grieving and still without Excalibur, Morgaine makes a hasty retreat to Avalon. When she finally returns to Camelot, it is to retrieve Avalon's Holy Regalia, now being used in a Christian mass. Enraged at this betrayal, Morgaine calls upon the Lady's magic, which results in the mysterious disappearance of the holy chalice, prompting the companions of the Round Table to embark on a 12-month quest to find it.

Events spiral out of control when Lancelet returns, resumes his adulterous relationship with Gwenhwyfar, and is finally exposed. The novel closes with the King Stag's death and Morgaine's long-anticipated return to Avalon.