The Therons originated from the Caillié, fifth of the generation ships to depart Earth and first to be encountered by the Ildirans. The colonists of this ship were taken by the Ildirans to settle on Theroc. Their rulers are a Father and Mother, similar to a King and Queen. They live mainly on biological products, using next to no inorganic materials. The Therons have the capability of bonding with the worldforest (or Verdani) to become green priests, who have telepathic relationships with the worldforest. They are, strictly speaking, independent of the Hansa. They have next to no military, although their alliance with the Verdani does give them protection to a certain degree.