Yet, while his swift horsemen overthrew armies far from his frontiers, at his very borders an audacious foe plucked his beard with a red-dripping and smoke-stained hand.

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 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.

'How am I to crush these wolves?' demanded Jehungir. 'If I follow them into the steppes, I run the risk either of being cut off and destroyed, or having them elude me entirely and burn the city in my absence. Of late they have been more daring than ever.'

'That is because of the new chief who has risen among them,' answered Ghaznavi. 'You know whom I mean.'

'Aye!' replied Jehungir feelingly. 'It is that devil Conan; he is even wilder than the kozaks, yet he is crafty as a mountain lion.'

'It is more through wild animal instinct than through intelligence,' answered Ghaznavi. 'The other kozaks are at le