"It was a nightmare," muttered Steve. "Look--the jewel is back on the throne----" His voice died out. Again that red glow throbbed about the ancient throne, reflecting from the moldering skull; again in the outstretched finger-bones pulsed the Fire of Asshurbanipal. But at the foot of the throne lay another object that had not been there before--the severed head of Nureddin el Mekru stared sightlessly up at the gray light filtering through the stone ceiling. The bloodless lips were drawn back from the teeth in a ghastly grin, the staring eyes mirrored an intolerable horror. In the thick dust of the floor three spoors showed--one of the shaykh's where he had followed the red jewel as it rolled to the wall, and above it two other sets of tracks, coming to the throne and returning to the wall--vast, shapeless tracks, as of splayed feet, taloned and gigantic, neither human nor animal. "My God!" choked Steve. "It was true--and the Thing--the Thing I saw----" * * * * * Steve remembered the flight from that chamber as a rushing nightmare, in which he and his companion hurtled headlong down an endless stair that was a gray well of fear, raced blindly through dusty silent chambers, past the glowering idol in the mighty hall and into the blazing light of the desert sun, where they fell slavering, fighting for breath. Again Steve was roused by the Afridi's voice: "_Sahib, sahib_, in the Name of Allah the Compassionate, our luck has turned!" Steve looked at his companion as a man might look in a trance. The big Afghan's garments were in tatters, and blood-soaked. He was stained with dust and caked with blood, and his voice was a croak. But his eyes were alight with hope and he pointed with a trembling finger. "In the shade of yon ruined wall!" he croaked, striving to moisten his blackened lips. "_Allah il allah!_ The horses of the men we killed! With canteens and food-pouches at the saddle-horns! Those dogs fled without halting for the steeds of their comrades!" New life surged up into Steve's bosom and he rose, staggering. "Out of here," he mumbled. "Out of here, quick!" Like dying men they stumbled to the horses, tore them loose and climbed fumblingly into the saddles. "We'll lead the spare mounts," croaked Steve, and Yar Ali nodded emphatic agreement. "Belike we shall need them ere we sight the coast." Though their tortured nerves screamed for the water that swung in canteens at the saddle-horns, they turned the mounts aside and, swaying in the saddle, rode like flying corpses down the long sandy street of Kara-Shehr, between the ruined palaces and the crumbling columns, crossed the fallen wall and swept out into the desert. Not once did either glance back toward that black pile of ancient horror, nor did either speak until the ruins faded into the hazy distance. Then and only then did they draw rein and ease their thirst.