Master and Fool — J.V. Jones

From dungeon to cathedral, from brothel to hermit's hut, the gambits of the mighty face the power of seers and stars. In the fortress of Bren, mad King Kylock and the wizard Baralis spread their sadistic terror across the shattered kingdoms. Meanwhile, the fallen knight Tawl and Jack, the baker's boy, meet in a quest to save widowed Melliandra and her unborn child.

Soon sons will turn on fathers and dread secrets will be revealed, as Jack and Kylotk clash in a magical apocalypse that will rewrite the meaning of Destiny and unknit the very fabric of time ...in the wondrous conclusion to the brilliant saga THE BOOK OF WORDS