"Slaves!" muttered Lantin, and from the white robes and stiff movements, I saw that he had guessed the identity of the two aright. They walked on toward us, then passed us, at arm's length, walking stiffly, mechanically, past us. Whether or not they saw us, I can not say, though if they had glimpsed us, I doubt whether their soulless natures would have understood the significance of our presence there. At any rate, they passed us by, and proceeded on down the tunnel. My sword was in my hand, and grasping it by the blade six inches or more beneath the hilt, I stole quickly down the tunnel after the white-robed figures. As quietly as possible, I hastened after them, and in a moment the heavy hilt of my rapier swung down on their skulls in two swift blows, and they slumped to the floor. A low call brought Lantin to my side, and we hastily pulled the long white robes from the two on the floor, and put them on over our own clothing. I shuddered with deep loathing, in the process, for these two men on the floor were icy-cold to the touch. Dead-alive, and slaves to the Kanlars! I hoped, at least, that my blows had released them from their dreadful servitude. Disguised now by the white garments, we hastened again out of the tunnel and down the broad ramp into the red-lit street. We passed some distance along that street before we came near to any of the guards, and when we did so, we changed our pace, walking stiffly and rigidly, eyes staring straight ahead, striving to give to our faces the blank, deathly expression of the faces of the slaves. We were unchallenged, the guards passing us without giving us more than a casual glance. And as we passed group after group of the armored men, we began to breathe easier, though we still kept to our unlifelike walk and expression. * * * * * As we drew farther toward the city's edge, the street became more deserted. The buildings began to lessen in size and frequency, and we were not far from the spot where the red lights along the street ended and it became a road. Abruptly, I clutched Lantin's arm. From far behind us, from the temple whence we had fled, there rose a great ringing sound, a vast bell-note that echoed out over all the city clearly. It was repeated, and now, from far behind us also, came a dim, angry clamor, a score or more of raging shouts, through which there cut the clear note of a bugle. "The guards!" I whispered to Lantin, tensely. "Someone has found them there on the stair! They're after us!" "Faster," he muttered to me, without turning. "We're almost out of the city." It was so, in truth, for we were nearing the end of the street's lighted part, while on each side the buildings were becoming fewer. We had met no one on the street for the last few minutes, and as we passed under the last of the glowing bulbs, I turned and cried to my friend, "Out of the city, Lantin!"