, Trylithia, and Vexador are all in the Gorvan System, a marvelous galaxy in C.E. Stone's universe filled with alien peoples and exotic locales. In the time of the Starganauts, 11 worlds have been discovered by Vexador...though more wait to be unearthed.
The Gorvan System is not merely a place, however. It has a history stretching back thousands of years, before the Orb Cave was first fashioned.