In Mercia, King Dieo rules with wisdom and unshakable justice, but as his final hour nears, he must pass on more than a throne-he must pass on his soul. To his adopted son Enock, he imparts the knowledge and discipline that define true leadership, even as betrayal and ambition threaten to tear the kingdom apart...and the future of Mercia will be decided by whether a son can live up to the legacy of a king.