At last we passed between vast ruby columns and stood beneath the huge red dome. Before us lay a great space, fairly lit with a rosy light from the crystal walls. Around the farther side were seated tier upon tier, thousands of the brilliantly clad people of Astran. In the center of the great floor, resting upon a pedestal, was a globe of shining purple--a sphere of coruscating flame--itself immense, perhaps forty feet in diameter, but insignificant in that colossal hall. Standing at rigid attention, in regular rows about the pedestal were a few score bright-armed soldiers, and as many other erect men in long purple robes. All eyes were fixed on a point in front of the gigantic globe, and hence hidden from where we stood. We hurried silently across the smooth metal floor, our footsteps drowned in the rushing sounds of the flying things above. We ran around the great purple sun-sphere of crystal, and came abruptly upon a dramatically terrible scene. Beneath the sphere was an altar of glowing red, with the priests and soldiery all grouped about it. By the altar, kneeling and silent, clad in a filmy green robe, was the beautiful form of Melvar. Just behind her stood a tall hawk-like man, in his hands a great transparent crystal vessel full of a liquid that gleamed like molten silver. As we came around the sphere he was holding up the vessel and repeating a strange chant in a monotonous monotone. At sight of us he dropped into alarmed silence, with an ugly scowl of hate and fear distorting his harsh features. For a moment he stood as if paralyzed, then he rushed toward the silent girl as though to empty the contents of the crystal pitcher upon her. I fired on the instant, and had the luck to shatter the vessel, splashing the shining silvery fluid all over his person. The effect of it was instantaneous and terrible. His purple robe was eaten away and set on fire by the stuff; his flesh was dyed a deep purple, and partially consumed. He tottered and fell to the floor in a writhing, flaming heap. In the confusion, and the dazed silence that fell upon the vast assemblage at sight of that horrible thing, Melvar, aroused from her resignation of despair by the report of the pistol, sprang to her feet in incredulous surprise. For a moment she looked wonderingly at us. Then she turned and shouted a few strange and impressive words at the priests. Her white arms swept up in a curious gesture. Then she turned and sped toward us. We started running back the way we had come. The dramatic fall of Jorak, and the evident terror that Melvar's courageous and timely words, whatever they had been, had inspired, served to hold the Astranians motionless until we had traversed the better part of the distance to the columns. But then they started after us en masse. I dropped to my knees at the columns and began firing steadily with the rifle. They fell, sometimes two or three at a shot, but still they charged on, and their number was overwhelming.