While only women can command the power of the matrix and the secret sciences which keep Darkover from Terran hands, in most respects they are still chattels. But the Free Amazons are considered equal to men, and it is they who provide the key to the Terran-Darkover dilemma.

Jaelle has been raised in the harsh patriarchal environment of the Dry Towns. Her mother Mellora is a Comyn woman who has been kidnapped in order to breed laran-gifted offspring for her barbarian "husband." But when a desperate, pregnant Mellora dies in childbirth following a daring escape aided by a band of Renunciates, the still young Jaelle is adopted into the Guild, and becomes the Free Amazon Jaelle n'ha Mellora, a woman who has never known kindness...

Haunted by mysterious images of hooded figures, Magdalen Lorne, chief Terran operative on Darkover, pursues a quest not only to the frozen ends of the physical world but also to the perilous limits of the spiritual world. And there she is tested by the evil sorcery of the Dark Sisterhood.