Centuries ago men died for the chance to own the Ring and master its powers.  The Sisterhood, that protected it, grew weary of the fighting and fled to an alien planet to keep the Ring in peace.  Now, in the paradise city of Parliament, the genetically designed, psychic Rulers possess the power of the Ring, still guarded by the Sisterhood.  In the Arctic North, Giants are perfecting the science of terraforming, in exchange for a share of the Ring’s power.  In the Valley that joins the two lands, there are thousands of slave workers.  There is an uneasy truce between the three peoples, but war is looming again.  Cain of Eastmarch, a telepath, leads the Workers but to truly claim victory he must steal the Ring and suffer the curse of the Sisterhood.