In a dramatic and moving tale of trickery and betrayal, forgiveness and hope, the legend of King Arthur, his loves and losses, the fall of Camelot, his Knights of the Round Table, the secrets of his past and mysteries of his future, all come to bear in this visually stunning portrait of a man. Before Arthur's father, Uther Pendragon, was murdered by Ulric, as a final act, Uther thrust his sword, Caliburn, into a rock. Only a man true of heart would be able to draw and wield the weapon once more. Until that time, Ulric would become King of the Britons, raining terror over all the land. And the people of Albion would wait for a beacon of hope. The wizard Merlin knows just who that person is destined to be. If Ulric is to be overthrown, then it is Arthur, son of Uther, who must pull out the sword and become the rightful leader of the Britons. So, until Arthur comes of age, Merlin hides the future King - in so doing he strikes a dangerous bargain with the dark Unseelie Fae. As the day approaches when Arthur will come of age, there are strong powers at play.
Not everyone wishes for Arthur to succeed - for it was Morgana, Arthur's half-sister, who Merlin traded to the Unseelie, in place of her brother, all those years ago. And now the witch has a vengeful score to settle.