The Knight of the Sacred Lake by Rosalind Miles

SYNOPSIS
Last in a line of proud queens elected to rule the fertile lands of the West, true owner of the legendary Round Table, guardian of the Great Goddess herself . . . a woman whose story has never been told--until now.

As High King and Queen, Arthur and Guenevere reign supreme across the many kingdoms of Great Britain. Still, Guenevere secretly mourns the loss of her beloved Lancelot, who has returned to the Sacred Lake of his boyhood, hoping to restore his faith in chivalry in the place where he learned to be a knight. In a glittering Pentecost ceremony, new knights are sworn to the Round Table, including Arthur's nephews, Agravain and Gawain. After many years of strife, peace is restored to Guenevere's realm.

But betrayal, jealousy, and ancient blood feuds fester unseen. Morgan Le Fay, now the mother of Arthur's only son, Mordred, has become the focus of Merlin's age-old quest to ensure the survival of the house of Pendragon. From the east comes the shattering news that Guenevere may have a rival for Lancelot's love. A bleak shadow falls again across Camelot--and across the sacred isle of Avalon, where Roman priests threaten the life of the Lady herself. At the center of the storm is Guenevere, torn between her love for her husband, her people, and Sir Lancelot of the Lake.

With rare and intuitive magic, Rosalind Miles brings to life a legendary woman's bravery and passion, and all the pageantry, heartbreak, violence, and beauty of an age gone by.

MY VIEW
Following on from Guenevere, Queen of the Summer Country this is the middle book of the trilogy and I wasn't expecting any great shakes as personally I find middle books not that great! Actually, this was just slightly better than the first book ...

Arthur in this book seems like quite a weak character which is not how I imagined him to be and Guenevere seems a little more grown up than she was in GQOTSC. This book continues after Guenevere's affair with Lancelot and she has sent him away after Arthur's incestuous relationship with his sister, Morgan La Fay.

This book mainly covers Merlin's attempts in finding Mordred and Lancelot returning to Camelot, although the series is predominantly Guenevere's you do get the viewpoints of other characters thrown in for good measure.