Morgen le Fay has lived at the center of King Arthur’s court her whole life: apprentice to Merlin, midwife to Gweynevere, aunt to the Orkneys, and acolyte to the high sorceress Vyvian du Lac. From the age of fourteen, her ubiquitous presence upon battlefields, in birthing chambers, and in political arenas—along with her reputation for powerful magic—has made her a myth in her own time. And a target.

But Morgen is just a mortal like the rest, and when Vyvian du Lac dies, she is left inexplicably bereft of her magic. Not only her power, but the entire framework of the Path—a powerful network connecting the Circle of Nine, Morgen’s council of sorceresses—collapses. And death itself, it seems, is close on Morgen’s heels.

Magic isn’t done with her yet, though. Morgen is whisked away from Carelon to the heart of Brocèliande forest, where she must face legendary beasts, mad witches, and the shadows of her own past. Forced to lean on the moody, mysterious Sir Yvain—the son of the man she once married for love—Morgen must embark on an adventure worthy of the songs, or lose everything she has worked decades for.

Things at Carelon, however, continue to deteriorate in Morgen’s absence. Bolstered by her disappearance, Queen Mawra targets Morgen’s daughter, Llachlyn. Unlike her mother, Llachlyn does not appear to have any powers, but spends most of her time at court with her cousin young Sir Galahad and their friend, the squire Percival. When they share a vision of the graal, Queen Mawra threatens to send Llachlyn—a pagan—to a nunnery. With Galahad's help, she and Percival escape north to Sir Gawain’s home, begging for help and protection.

Gawain and Hwyfar, who have spent ten peaceful years away from court in a forbidden marriage, are now swept back into the political sphere where the battle for Arthur's legacy has just begun. As Arthur’s health deteriorates, Lanceloch and Mawra’s schemes come to life, and new threats arise from deep within the castle, they must atone for their past decisions and train up the next generation, all before the graal falls into the wrong hands.

The epic conclusion to the Queens of Fate series sees old foes return, new loves kindled, buried secrets revealed, and ancient grudges re-emerge, all against the backdrop of the final days of King Arthur’s Carelon.