The Illearth War

After scant days in his "real" world, Thomas Covenant finds himself again summoned to the Land. There, forty bitter years have passed, while Lord Foul, immortal enemy of the Land, moves to fulfill his prophecy of doom. The Council of Lords find their spells useless, now that Foul the Despiser holds the Illearth Stone, ancient source of evil power. At last High Lord Elena turns in desperation to Covenant and the legendary white gold magic of his ring....