Isabel is a natural-born witch, chosen to be the bride of Mordred, the illegitimate son of King Arthur. As the wife of the High King’s only son and the apprentice of the mysterious Merlin, Isabel finds herself constantly in the middle of everything, whether she wills it or not - from the death of the Lady of the Lake, to Lancelot and Guinevere’s affair and Galahad’s drawing of the sword from the stone. Through it all there are only two constants: her irrational and obsessive love for the unpredictable Mordred, and her resolute desire to keep and build upon her magic power, even at the expense of her own happiness. As she becomes older and wiser, she takes Merlin’s place at Arthur’s side, becoming embroiled in the Grail Quest and ultimately, the fall of Camelot.