Zveri lowered his pistol and commenced to plead with the warriors, promising them rewards that amounted to riches to them if they would accompany the whites into the city; but the volunteers were obdurate—nothing could induce them to venture into Opar.

Seeing failure once again imminent and with a mind already obsessed by the belief that the treasures of Opar would make him fabulously wealthy and insure the success of his secret scheme of empire, Zveri determined to follow Romero and Colt with the remainder of his aides, which consisted only of Dorsky, Ivitch and the Filipino boy. "Come on," he said, "we will have to make a try at it alone, if these yellow dogs won't help us."

By the time the four men had passed through the outer wall, Romero and Colt were already out of sight beyond the inner wall. Once again the warning scream broke menacingly upon the brooding silence of the ruined city.

"God!" ejaculated Ivitch. "What do you suppose it could be?"

"Shut up," exclaimed Zveri irritably. "Stop thinking about it, or you'll go yellow like those damn niggers."

Slowly they crossed the court toward the inner wall, nor was there much enthusiasm manifest among them other than for the evident desire in the breast of each to permit one of the others the glory of leading the advance. Tony had reached the opening when a bedlam of noise from the opposite side of the wall burst upon their ears—a hideous chorus of war cries, mingled with the sound of rushing feet. There was a shot, and then another and another.

Tony turned to see if his companions were following him. They had halted and were standing with blanched faces, listening.

Then Ivitch turned. "To hell with the gold!" he said, and started back toward the outer wall at a run.

"Come back, you lousy cur," cried Zveri, and took after him with Dorsky at his heels. Tony hesitated for a moment and then scurried in pursuit, nor did any of them halt until they were beyond the outer wall. There Zveri overtook Ivitch and seized him by the shoulder. "I ought to kill you," he cried in a trembling voice.

"You were as glad to get out of there as I was," growled Ivitch. "What was the sense of going in there? We should only have been killed like Colt and Romero. There were too many of them. Didn't you hear them?"