Аластор

ALL THREE ALASTOR NOVELS IN ONE VOLUME!
The Alastor Cluster: A sprawling system of thirty thousand live stars and three thousand inhabited planets, the cluster is ruled by the mysterious Connatic. He sees all and knows all, but with five trillion people contained within such far-flung boundaries, sooner or later something is bound to give.
Each story is centered on a particular world of Alastor, each with its own peculiar customs, a staple of Jack Vance's writings: Trullion: Alastor 2262 (first published in 1973), Marune: Alastor 933 (1975), and Wyst: Alastor 1716 (1978).