As the purple monster sprang upon the boulder, I emptied my automatic into it. Great wounds were torn in the dark flesh, and half the face was shot away, but the thing seemed immune to death by ordinary means. As the last shot was fired it stood before us on the rock, a terrible mangled thing, the red eye blazing with demonic inhumanity. Naro sprang out before me, his crystal sword drawn high. As the beast sprang at him, he cut at it with a mighty sweep of the razor-edged weapon. But the stroke, which would have decapitated an ordinary human, was parried by a terrific blow of the claw-like hand of the thing, and the boy was sent spinning back against me. We fell together on the rock. Then it hurled itself toward Melvar. It all happened in the briefest of moments, before I could even begin to rise. She swung up the automatic with a quick, sure, graceful movement. She was like a beautiful goddess of battle, with blue eyes shining brightly, and golden hair gleaming in the sun. Again that mad laugh was ringing out, with a choking sob in it, for the thing's vocal organs were injured. It leapt at her, its lacerated limbs working like machines. Calmly she stood, with automatic raised. The muzzle of the gun was not an inch from the throat of the beast when she fired. The strange head was blown completely off the body, and fell rolling and bouncing to the red brush below. The body collapsed, writhing and convulsed. It was not quiet for many minutes. The girl dropped the gun, suddenly trembling, and threw herself into my arms, sobbing uncontrollably. Her courage and coolness had saved us all, and I admit that I was quite as much unstrung as she after the danger had passed. What a wonderful being she was! * * * * * The Red Ship It was so late in the day, and we were so completely exhausted that we decided to go no farther. Naro was not hurt, save for a few scratches; and I suppose he was the least excited of the three. In a few minutes he threw the quivering purple body off the boulder and carried it and the head back across the clearing to dispose of them. When he returned we found an overhanging shelf on the north side of the boulder that would afford some shelter from the flying lights. We gathered some of the yellow fruit for supper, cleaned and reloaded the weapons, and prepared to spend the night there. Naro called me aside and showed me a curious, much-worn silver bracelet, with a singular design upon it. He told me, in his imperfect English, that it had belonged to his father, who had been taken by the flying lights many years before. That was a curious development. It showed that there was some connection between the dreaded Purple Ones, and the terrible, pillaging red lights. But the full significance of it did not dawn upon me until later.