The Third Magic - Cochran, Molly

In this followup to "The Forever King" and "The Broken Sword, " Arthur must claim his long-awaited destiny. But as in the legend, Guinevere stands between Arthur and victory. Her intimate connection with the Holy Grail may force Arthur to make a terrible sacrifice.

The Third Magic 2004, Tor Books, New York, NY

ISBN-13: 9780812545128

Mass-market paperback

The Third Magic 2003, Forge, New York, NY

ISBN-13: 9780312864408