"I didn't see that he did."
"Well, one of the packs is gone anyway."
"Then the other man must have taken it," said Fred positively. "I'm sure the one I saw leaving didn't carry anything with him."
"He may have come back," suggested Grant.
"That's true," said Fred thoughtfully. "I hadn't thought of that. Thomas Jefferson," he added as the young Navajo now approached the place where the two Go Ahead Boys were standing, "what do you make of this?"
"All three gone," replied the Indian.
"We know that already," replied Fred sharply, "but we don't know where they have gone nor why nor who. What time was it," he demanded of Grant, "when you first found this out?"
"About ten minutes ago when I first waked up."
"I saw one of the men leaving," Fred explained, "but I haven't any idea what time it was. It was in the night sometime."
"Did he go alone?" inquired the Indian.