King Arthur lives, but the war isn't over, and distinguishing between friends and foes has never been more difficult. A Long Cloud takes Myrddin and Nell into England. And it is there, in the heart of Modred's domain, that the truth about Myrddin's parentage is finally revealed.
A Long Cloud is the fourth book in the Lion of Wales series. Complete Series reading order: Cold My Heart, The Oaken Door, Of Men and Dragons, A Long Cloud, Frost Against the Hilt.