Trullion: Alastor 2262

Trullion: Alastor 2262 (1973) is a science fiction novel by American writer Jack Vance, first published by Ballantine Books. It is one of three books set in the Alastor Cluster, "a whorl of thirty thousand live stars in an irregular volume twenty to thirty light-years in diameter." Three thousand star systems are inhabited by five trillion humans, who are governed by the mostly hands-off Connatic. Occasionally, in the manner of Harun al-Rashid of The Thousand and One Nights, the Connatic travels in disguise among the people.