The linking volume between The Forest House and The Mists of Avalon, which tells the story of the holy women who steer the fortunes of Roman Britain as they struggle with their own destinies.  Caillean retreats to the island of Avalon with a small band of priestesses and establishes a sisterhood to serve the Great Goddess, raises the heir to the mystic royal line and veils Avalon from a hostile world in its everlasting mists. Dierna guides Avalon through treacherous politics by marrying a young priestess to a Roman general and finds that love, especially her own, cannot be easily controlled. Ana gives birth to a baby girl who will be the mother of the great king to come but it is her feisty older daughter Vivian who his destined for greatness.