On the broad steppes between the Sea of Vilayet and the borders of the easternmost Hyborian kingdoms, a new race had sprung up in the past half-century, formed originally of fleeing criminals, broken men, escaped slaves, and deserting soldiers. They were men of many crimes and countries, some born on the steppes, some fleeing from the kingdoms in the West. They were called “Kozak,” which means “wastrel.”
Dwelling on the wild, open steppes, owning no law but their own peculiar code, they had become a people capable even of defying the Grand Monarch. Ceaselessly they raided the Turanian frontier, retiring in the steppes when defeated; with the pirates of Vilayet, men of much the same breed, they harried the coast, preying off the merchant ships which plied between the Hyrkanian ports.