Grik are first animistic hatchlings growing to the Uul learning rudimentary speech.They obey without question the orders of the upper class the Hij set over them. Most older Uul are killed for food, chosen by Hij choosers for the cook pots, before becoming sentient. A very few Grik become Hij, and the Uul chosen for elevation is also done by the choosers, too.

Among the Uul are various subcategories. Warrior Uul are selected from the larger and more aggressive and are distinct from Uul sailors. Among the civilian uul are valued workers with some modcium of route learned skill as well as low ranking Uul laborers who double as livestock.

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