Arthurian, Historical 

On the night of Guinevere's birth, a wise woman declares a prophecy of doom for the child: she will be gwenhwyfar, the white shadow, destined to betray her king, and be herself betrayed. Years pass, and Guinevere becomes a great beauty, riding free across Northern Wales on her beloved horse. She is entranced by the tales of the valorous Arthur, a courageous warrior who seems to Guinevere no mere man, but a legend. Then she finds herself betrothed to him and, like the knights that follow him, swiftly falls under Arthur's spell ...At the side of King Arthur, Guinevere reigns strong and true. Yet she soon learns how the dark prophecy will reveal itself - she is unable to conceive. Arthur's only true heir is Mordred, offspring of a cursed encounter with the witch Morgause. Now Guinevere makes a fateful choice: to raise the child as her own, to teach him to be a ruler and to honour Camelot. Mordred will be her greatest joy - and the key to her ultimate downfall. Find out more about this title and others at www.orbitbooks.co.uk - from Amzon