The vision vanished abruptly as his questing eyes made the circle of the ruined walls. There had been no gate. He could not find a trace of it anywhere around the outer wall of the court. The only entrance here, as nearly as he could tell from the foundations that remained, had been the door in whose ruins he now stood. Queer. This must have been a private court, then, its great grille-crowned well reserved for the use of the priests. Or wait--had there not been a priest-king Illar after whom the city was named? A wizard-king, so legend said, who ruled temple as well as palace with an iron hand. This elaborately patterned well, of material royal enough to withstand the weight of ages, might well have been sacrosanct for the use of that long-dead monarch. It might---- * * * * * Across the sun-bright pavement swept the shadow of a plane. Smith dodged back into deeper hiding while the ship circled low over the courtyard. And it was then, as he crouched against a crumbled wall and waited, motionless, for the danger to pass, that he became aware for the first time of a sound that startled him so he could scarcely credit his ears--a recurrent sound, choked and sorrowful--the sound of a woman sobbing. The incongruity of it made him forgetful for a moment of the peril hovering overhead in the sun-hot outdoors. The dimness of the temple ruins became a living and vital place for that moment, throbbing with the sound of tears. He looked about half in incredulity, wondering if hunger and thirst were playing tricks on him already, or if these broken halls might be haunted by a million-years-old sorrow that wept along the corridors to drive its hearers mad. There were tales of such haunters in some of Mars' older ruins. The hair prickled faintly at the back of his neck as he laid a hand on the butt of his force-gun and commenced a cautious prowl toward the source of the muffled noise. Presently he caught a flash of white, luminous in the gloom of these ruined walls, and went forward with soundless steps, eyes narrowed in the effort to make out what manner of creature this might be that wept alone in time-forgotten ruins. It was a woman. Or it had the dim outlines of a woman, huddled against an angle of fallen walls and veiled in a fabulous shower of long dark hair. But there was something uncannily odd about her. He could not focus his pale stare upon her outlines. She was scarcely more than a luminous blot of whiteness in the gloom, shimmering with a look of unreality which the sound of her sobs denied. * * * * *