How the unknown English secret-service man who had added those notes had got possession of the letter there was no way of knowing; but it had been intended for the man called Suleiman Pasha, and it revealed what O'Donnell had suspected—a plot within a plot; a red and sinister conspiracy concealing itself in a guise of international policy.
Suleiman Pasha was not only a foreign spy; he was a traitor to the men he served. And the tentacles of the plot which revolved about him stretched incredibly southward into high places. O'Donnell swore softly as he read there the names of men trusted by the government they pretended to serve. And slowly a realization crystallized—this letter must never reach Suleiman Pasha. Somehow, in some way, he, Kirby O'Donnell, must carry on the work of that unknown Englishman who had died with his task uncompleted. That letter must go southward, to lay bare black treachery spawning under the heedless feet of government. He hastily concealed the packet as the Waziri approached.
Yar Muhammad grinned. He had lost a tooth, and his black beard was streaked and clotted with blood which did not make him look any less savage.
"The dogs wrangle with one another," he said. "It is always thus; only the hand of Afzal Khan kept them together. Now men who followed him will refuse to follow one of their own number. They fear the Khurukzai. We also have reason to beware of them. They will be waiting in the hills beyond the Pass of Akbar."
O'Donnell realized the truth of this statement. He believed a handful of Pathans yet held the tower in the pass, but there was no reason to suppose they would not desert their post now that Afzal Khan was dead. Men trooping down out of the hills told him that the footpaths were no longer guarded. At any time Khurukzai scouts might venture back, learn what was going on, and launch an attack in force.
The day wore on, hot, and full of suffering for the wounded in the in closure. Only a desultory firing came from the rocks, where continual squabbling seemed to be going on. No further attack was made, and presently Yar Muhammad grunted with gratification.
From the movement among the rocks and beyond them, it was evident that the leaderless outlaw band was breaking up. Men slunk away up the valley, singly or in small bands. Others fought over horses, and one group turned and fired a volley at their former companions before they disappeared among the spurs at the head of the valley. Without a chieftain they trusted, demoralized by losses, short of water and food and ammunition, and in fear of reprisals, the outlaw band melted away, and within an hour from the time the first bolted, the valley of Khuruk was empty except for O'Donnell's men.
To make sure the retreat was real, O'Donnell secured his horse from the pen and, with Yar Muhammad, rode cautiously to the valley head. The spurs were empty. From the tracks the American believed that the bandits had headed southward, preferring to make their way through the pathless hills rather than fight their way through the vengeful Khurukzai who in all probability still lurked among the crags beyond the Pass of Akbar.
He had to consider these men himself, and he grinned wryly at the twist of fate which had made enemies of the very men he had sought in friendship. But life ran that way in the hills.
"Go back to the Turkomans," he requested Yar Muhammad. "Bid them saddle their horses. Tie the wounded into the saddles, and load the spare horses with food and skins of water. We have plenty of spare horses now, because of the men who were slain. It is dusk now, and time we were on our way.
"We shall take our chance on the trails in the dark, for now that the hill paths are unguarded, assuredly the Khurukzai will be stealing back, and I expect an attack on the valley by moonrise, at the latest. Let them find it empty. Perhaps we can make our way through the Pass and be gone while they are stealing through the hills to the attack. At least we will make the attempt and leave the rest to Allah."
Yar Muhammad grinned widely—the prospect of any sort of action seemed to gratify him immensely—and reined his horse down the valley, evidencing all the pride that becomes a man who rides a blooded Turkish steed. O'Donnell knew he could leave the preparations for the journey with him and the Turkomans.
The American dismounted, tied his horse and strode through the rocky spurs to the point where the trail wound out of them and along a boulder- littered narrow level between two slopes. Dusk was gathering, but he could see any body of men that tried to come along that trail.
But he was not expecting attack by that route. Not knowing just what had taken place in the valley, the Khurukzai, even if the men in the tower had deserted it, would be too suspicious to follow the obvious road. And it was not attack of any sort that was worrying him.