In single file behind him, there followed, one after another, near fifty others, each burdened with two dull-yellow ingots lashed upon his back. Werper recognized the party immediately as that which had accompanied Tarzan on his journey to Opar. He glanced at the ape-man; but in the savage, watchful eyes he saw no recognition of Basuli and those other loyal Waziri.

When all had passed, Tarzan rose and emerged from concealment. He looked down the trail in the direction the party had gone. Then he turned to Werper.

“We will follow and slay them,” he said.

“Why?” asked the Belgian.

“They are black,” explained Tarzan. “It was a black who killed Kala. They are the enemies of the Manganis.”

Werper did not relish the idea of engaging in a battle with Basuli and his fierce fighting men. And, again, he had welcomed the sight of them returning toward the Greystoke bungalow, for he had begun to have doubts as to his ability to retrace his steps to the Waziri country. Tarzan, he knew, had not the remotest idea of whither they were going. By keeping at a safe distance behind the laden warriors, they would have no difficulty in following them home. Once at the bungalow, Werper knew the way to the camp of Achmet Zek. There was still another reason why he did not wish to interfere with the Waziri—they were bearing the great burden of treasure in the direction he wished it borne. The farther they took it, the less the distance that he and Achmet Zek would have to transport it.

He argued with the ape-man therefore, against the latter’s desire to exterminate the blacks, and at last he prevailed upon Tarzan to follow them in peace, saying that he was sure they would lead them out of the forest into a rich country, teeming with game.

It was many marches from Opar to the Waziri country; but at last came the hour when Tarzan and the Belgian, following the trail of the warriors, topped the last rise, and saw before them the broad Waziri plain, the winding river, and the distant forests to the north and west.

A mile or more ahead of them, the line of warriors was creeping like a giant caterpillar through the tall grasses of the plain. Beyond, grazing herds of zebra, hartebeest, and topi dotted the level landscape, while closer to the river a bull buffalo, his head and shoulders protruding from the reeds watched the advancing blacks for a moment, only to turn at last and disappear into the safety of his dank and gloomy retreat.

Tarzan looked out across the familiar vista with no faintest gleam of recognition in his eyes. He saw the game animals, and his mouth watered; but he did not look in the direction of his bungalow. Werper, however, did. A puzzled expression entered the Belgian’s eyes. He shaded them with his palms and gazed long and earnestly toward the spot where the bungalow had stood. He could not credit the testimony of his eyes—there was no bungalow—no barns—no out-houses. The corrals, the hay stacks—all were gone. What could it mean?