The Illearth War (First Chronicles of Thomas Covenant Series #2)

The second volume in the epic Chronicles of Thomas Covenant the Unbeliever.
Thomas Covenant found himself once again summoned to the Land. The Council of Lords needed him to move against Foul the Despiser who held the Illearth Stone, ancient source of evil power. But although Thomas Covenant held the legendary ring, he didn't know how to use its strength, and risked losing everything....