“Caya and her brother are going with the shepherd,” Bill said at length. “He will take them to his mother’s little hut.”

“I suppose Caya will marry him when she gets old enough,” Tom said. “But what will her brother do?”

“He has listened to our talk about the wonders of our country,” Mr. Gray said, “and he wants to stay with his sister until he knows she will be all right, and that, I suppose, means ‘until she marries the shepherd,’ then he will make his way to Cuzco. I have promised to send him some money, there, later on, and when he learns English and gets accustomed to the strange things that he will see everywhere outside his little hidden valley—who knows? He may come to visit us, some day!”

It was with considerable regret that the three chums said goodbye to Caya. She had been very faithful as a serving maid in the earlier days in the temple. Then she had endeared herself to their growing sense of chivalry by her sacrifice of freedom for their own sakes. They held her hand a little longer than was their habit with modern girls, and with no sense of sheepishness either!

Her brother they frankly made a comrade and if he did not understand their voluble promises of entertainment when he might come to see them at Amadale, they certainly conveyed a full sense of their comradeship to the straight young soldier.

Waving their hands, they watched Caya, her brother and the shepherd go out of sight down the crevasse and secret passway. Bill had a perfect route for their return tucked away in his pocket for he had drawn a rude map from the shepherd’s directions.

When the three whose lives had so closely twined in with their own were out of sight Bill turned to Mr. Whitley.

“I don’t know your mind and you don’t know mine,” he said—and the boys were tickled to hear the old expression he had used so often in the earlier days of their association—it seemed to bring them back to real, everyday things. “But to me it is a sin to leave that gold and those supplies to be ruined in the first storm in the mountains or to be buried in snow and ice this winter.”

“We aren’t stealing it,” Nicky suggested. “It can’t be returned to the Incas and the Spaniard—won’t need it——”

Mr. Gray was so eager to take the highly valuable specimens of the ancient handicraft to civilization that he urged them also. Mr. Whitley did not so much object to taking the gold; he did not wish the young fellows to be exposed to the sight of the ambush: but Bill settled that by going with him to bring back the gold and such supplies as they could use.