It was because of this weariness of body and mind that he did not hear the velvet-footed approach of the thing that crept upon him in the darkness. He woke only when taloned fingers clenched murderously on his throat and an inhuman voice whinnied sickening triumph in his ear.
Gordon's reflexes had been trained in a thousand battles. So now he was fighting for his life before he was awake enough to know whether it was an ape or a great serpent that had attacked him. The fierce fingers had almost crushed his throat before he had a chance to tense his neck muscles. Yet those powerful muscles, even though relaxed, had saved his life. Even so the attack was so stunning, the grasp so nearly fatal, that as they rolled over the floor Gordon wasted precious seconds trying to tear away the strangling hands by wrenching at the wrists. Then as his fighting brain asserted itself, even through the red, thickening mists that were enfolding him, he shifted his tactics, drove a savage knee into a hard-muscled belly, and getting his thumbs under the little finger of each crushing hand, bent them fiercely back. No strength can resist that leverage. The unknown attacker let go, and instantly Gordon smashed a trip- hammer blow against the side of his head and rolled clear as the hard frame went momentarily limp. It was as dark in the cave as the gullet of Hell, so dark Gordon could not even see his antagonist.
He sprang to his feet, drawing his scimitar. He stood poised, tense, wondering uncomfortably if the thing could see in the dark, and scarcely breathing as he strained his ears. At the first faint sound he sprang like a panther, and slashed murderously at the noise. The blade cut only empty air, there was an incoherent cry, a shuffle of feet, then the rapidly receding pad of hurried footsteps. Whatever it was, it was in retreat. Gordon tried to follow it, ran into a blank wall, and by the time he had located the side door through which, apparently, the creature had fled, the sounds had faded out. The American struck a match and glared around, not expecting to see anything that would give him a clue to the mystery. Nor did he. The rock floor of the cavern showed no footprint.
What manner of creature he had fought in the dark he did not know. Its body had not seemed hairy enough for an ape, though the head had been a tangled mass of hair. Yet it had not fought like a human being; he had felt its talons and teeth, and it was hard to believe that human muscles could have contained such iron strength as he had encountered. And the noises it had made had certainly not resembled the sounds a man makes, even in combat.
Gordon picked up his rifle and went out on the ledge. From the position of the stars, it was past midnight. He sat down on the ledge, with his back against the cliff wall. He did not intend to sleep, but he slept in spite of himself, and woke suddenly, to find himself on his feet, with every nerve tingling, and his skin crawling with the sensation that grim peril had crept close upon him.
Even as he wondered if a bad dream had awakened him, he glimpsed a vague shadow fading into the black mouth of a cave not far away. He threw up his rifle and the shot sent the echoes flying and ringing from cliff to cliff. He waited tensely, but neither saw nor heard anything else.
After that he sat with his rifle across his knees, every faculty alert. His position, he realized, was precarious. He was like a man marooned on a deserted island. It was a day's hard ride to the caravan road to the south. On foot it would take longer. He could reach it, unhindered—but unless Hawkston had abandoned the quest, which was not likely, the Englishman's caravan was moving along that road somewhere. If Gordon met it, alone and on foot—Gordon had no illusions about Hawkston. But there was still a greater danger: Shalan ibn Mansour. He did not know why the shaykh had not tracked him down already, but it was certain that Shalan, scouring the desert to find the man who slew his warriors at the Well of Amir Khan, would eventually run him down. When that happened, Gordon did not wish to be caught out on the desert, on foot. Here, in the Caves, with water, food and shelter, he would have at least a fighting chance. If Hawkston and Shalan should chance to arrive at the same time—that offered possibilities. Gordon was a fighting man who depended on his wits as much as his sword, and he had set his enemies tearing at each other before now. But there was a present menace to him, in the Caves themselves, a menace he felt was the solution to the riddle of Al Wazir's fate. That menace he meant to drive to bay with the coming of daylight.
He sat there until dawn turned the eastern sky rose and white. With the coming of the light he strained his eyes into the desert, expecting to see a moving line of dots that would mean men on camels. But only the tawny, empty waste levels and ridges met his gaze. Not until the sun was rising did he enter the caves; the level beams struck into them, disclosing features that had been veiled in shadows the evening before.
He went first to the passage where he had first heard the sinister footfalls, and there he found the explanation to one mystery. A series of hand and foot holds, lightly nitched in the stone of the wall, led up through a square hole in the rocky ceiling into the cave above. The djinn of the Caves had been in that passage, and had escaped by that route, for some reason choosing flight rather than battle just then.
Now that he was rested, he became aware of the bite of hunger, and headed for The Eagle's Nest, to get his breakfast out of the tins before he pursued his exploration of the caves. He entered the wide chamber, lighted by the early sun which streamed through the door—and stopped dead.
A bent figure in the door of the store-room wheeled erect, to face him. For an instant they both stood frozen. Gordon saw a man confronting him like an image of the primordial—naked, gaunt, with a great matted tangle of hair and beard, from which the eyes blazed weirdly. It might have been a caveman out of the dawn centuries who stood there, a stone gripped in each brawny hand. But the high, broad forehead, half hidden under the thatch of hair, was not the slanting brow of a savage. Nor was the face, almost covered though it was by the tangled beard.
"Ivan!" ejaculated Gordon aghast, and the explanation of the mystery rushed upon him, with all its sickening implications. Al Wazir was a madman.
As if goaded by the sound of his voice, the naked man started violently, cried out incoherently, and hurled the rock in his right hand. Gordon dodged and it shattered on the wall behind him with an impact that warned him of the unnatural power lurking in the maniac's thews. Al Wazir was taller than Gordon, with a magnificent, broad-shouldered, lean-hipped torso, ridged with muscles. Gordon half turned and set his rifle against the wall, and as he did so, Al Wazir hurled the rock in his left hand, awkwardly, and followed it across the cave with a bound, shrieking frightfully, foam flying from his lips.
Gordon met him breast to breast, bracing his muscular legs against the impact, and Al Wazir grunted explosively as he was stopped dead in his tracks. Gordon pinioned his arms at his side, and a wild shriek broke from the madman's lips as he tore and plunged like a trapped animal. His muscles were like quivering steel wires under Gordon's grasp, that writhed and knotted. His teeth snapped beast-like at Gordon's throat, and as the American jerked back his head to escape them, Al Wazir tore loose his right arm, and whipped it over Gordon's left arm and down. Before the American could prevent it, he had grasped the scimitar hilt and torn the blade from its scabbard. Up and back went the long arm, with the sheen of naked steel, and Gordon, sensing death in the lifted sword, smashed his left fist to the madman's jaw. It was a short terrific hook that traveled little more than a foot, but it was like the jolt of a mule's kick.
Al Wazir's head snapped back between his shoulders under the impact, then fell limply forward on his breast. His legs gave way simultaneously and Gordon caught him and eased him to the rocky floor.