convulsively, threw up two wide-sleeved arms and reeled back drunkenly. The frightened horse reared high, throwing the man heavily. In an instant the landscape showed two separate shapes where there had been one--a bundle of white sprawling on the ground, and a horse racing off southward.
Gordon lay motionless for a few minutes, too wary to expose himself. He knew the man was dead; the fall alone would have killed him. But there was a slight chance that other riders might be lurking among the sand dunes, after all.
The sun beat down savagely; vultures appeared from nowhere--black dots in the sky, swinging in great circles, lower and lower. There was no hint of movement among the ridges or the dunes.
Gordon rose and glanced down at the dead camel. His jaws set a trifle more grimly; that was all. But he realized what the killing of his steed meant. He looked westward, where the heat waves shimmered. It would be a long walk, a long, dry walk, before it ended.
Stooping, he unslung water-skin and food-bag and threw them over his shoulders. Rifle in hand he went up the trail with a steady, swinging stride that would eat up the miles and carry him for hour after hour without faltering.
When he came to the shape sprawling in the path, he set the butt of his rifle on the ground and stood looking briefly, one hand steadying the bags on his shoulders. The man he had killed was a Ruweila, right enough: one of the tall, sinewy, hawk-faced and wolf-hearted plunderers of the southern desert. Gordon’s bullet had caught him just below the arm-pit. That the man had been alone, and on a horse instead of a camel, meant that there was a larger party of his tribesmen somewhere in the vicinity. Gordon shrugged his shoulders, shifted the rifle to the crook of his arm, and moved on up the trail. The score between himself and the men of Shalan ibn Mansour was red enough, already. It might well be settled once and for all at the Well of Amir Khan.
As he swung along the trail he kept thinking of the man he was going to warn: Al Wazir, the Arabs called him, because of his former capacity with the Sultan of Oman. A Russian nobleman, in reality, wandering over the world in search of some mystical goal Gordon had never understood, just as an unquenchable thirst for adventure drove El Borak around the planet in constant wanderings. But the dreamy soul of the Slav coveted something more than material things. Al Wazir had been many things. Wealth, power, position; all had slipped through his unsatisfied fingers. He had delved deep in strange religions and philosophies, seeking the answer to the riddle of Existence, as Gordon sought the stimulation of hazard. The mysticisms of the Sufia had attracted him, and finally the ascetic mysteries of the Hindus.
A year before Al Wazir had been governor of Oman, next to the Sultan the wealthiest and most powerful man on the Pearl Coast. Without warning he had given up his position and disappeared. Only a chosen few knew that he had distributed his vast wealth among the poor, renounced all ambition and power, and gone like an ancient prophet to dwell in the desert, where, in the solitary meditation and self denial of a true ascetic, he hoped to read at last the eternal riddle of Life--as the ancient prophets read it. Gordon had accompanied him on that last journey, with the handful of faithful servants who knew their master’s intentions--old Salim among them, for between the dreamy philosopher and the hard-bitten man of action there existed a powerful tie of friendship.
But for the traitor and fool, Dirdar, Al Wazir’s secret had been well kept. Gordon knew that ever since Al Wazir’s disappearance, adventurers of every breed had been searching for him, hoping to secure possession of the treasure that the Russian had possessed in the days of his power--the wonderful collection of perfectly matched rubies, known as the Blood of the Gods, which had blazed a lurid path through Oriental history for five hundred years. These jewels had not been distributed among the poor with the rest of Al Wazir’s wealth. Gordon himself did not know what the man had done with them. Nor did the American care. Greed was not one of his faults. And Al Wazir was his friend.
The blazing sun rocked slowly down the sky, its flame turned to molten copper; it touched