Mere hours before Myrredith's execution, Billy is locked in battle with Ergyfel's demon, and Hugh fights to stay alive in Gwythian occupied Dyven. Can either get past Prince Hereweald's army in time to rescue Myrredith from the ax? Just trying may cost Billy the spellbinder Tirn Aill needs so desperately. Billy's visions point to a spellbinder in Castle Orgulous, making a showdown with Ergyfel unavoidable. But Billy's no match for the wizard-king's sorcery and he knows it. He must cast away fear and trust an enemy with his life. Only then can he hope to attack Orgulous and defeat the tyrant sitting on its throne. Meanwhile, King Ergyfel works his darkest magic against Billy and the invading Gwythians, and tightens his grip on the crown. However, his deal with Dheumon is costing him more than he imagined, and the arcane curse from Billy's ring continues to consume him. The King is the fourth of four novels in The Jester King Fantasy Series.