Hyathis was the queen of the planet Alstair in the Antares solar system. She was continually at war with the rulers of three other planets in the same solar system: Kanjar-Ro of Dhor, Kromm of Mosteel and Sayyar of Liarr. Each of the four rulers sought to become absolute master of the Antares solar system. The four- way war was a continual stalemate until Kanjar-Ro forced the members of the Justice League to capture his three rivals. Hyathis was taken prisoner by Aquaman and Wonder Woman, but the JLA captured Kanjar-Ro as well and marooned the four war mongering rulers on a small planet.