“Halt!” I cried to them, “you see what fate your companions have met, because you would not let us go in peace. That is all we ask. I am armed now and it will be death to any who follow us.” They paused and I saw them whispering together as Nah-ee-lah and I backed along the corridor, a turn in which soon shut them from our view. Then we wheeled and ran like deer along the winding passageway. I did not feel very safe from capture at any time, but at least I breathed a sigh of relief after we had passed the chamber from which the Kalkars had run us into the _cul-de-sac_, and we had seen no sign of any other of their kind. We heard no sound of pursuit, but that in itself meant nothing, since the Kalkars are shod with soft leather sandals, the material for which, like all their other leather trappings, is made of the skins of Va-gas and of the prisoners from Laythe. As we came to the pile of hooked poles which marked the last turn before the entrance of the tunnel I breathed an inward sigh of relief. Stooping, I gathered them all in my arms, and then we ran on to the opening into the crater, where I cast all but one of the poles into the abyss. That which I retained I hooked over the lip of the crater and then, turning to Nah-ee-lah, I bade her ascend. “You should have saved two of the poles,” she said, “and then we could have ascended together; but I will make haste and you can follow me immediately, for we do not know but that they are pursuing us. I cannot imagine that they will let us escape thus easily.” Even as she spoke I heard the soft patter of sandal shod feet up the corridor. “Make haste, Nah-ee-lah,” I cried; “they come!” Climbing a pole is slow work at best, but when one is suspended over the brink of a bottomless chasm and is none too sure of the security of the hook that is holding the pole above, one must needs move cautiously. Yet, even so, Nah-ee-lah scrambled upward so rapidly as to fill me with apprehension for her safety. Nor were my fears entirely groundless, for, standing in the mouth of the tunnel, where I could keep one eye upon Nah-ee-lah and the other toward the turn around which my pursuers would presently come in view, I saw the girl’s hands grasp the rim of the crater at the very instant that the hook came loose and the pole dropped past me into the abyss. I might have caught it as it fell, but my whole mind was fixed upon Nah-ee-lah and her grave danger. Would she be able to draw herself upward, or would she fall? I saw her straining frantically to raise her body above the edge of the volcano, and then from up the corridor behind me came an exultant cry and I turned to face a brawny Kalkar who was racing toward me. CHAPTER X THE KALKAR CITY