“But now that we can talk without running any danger,” continued Roger, anxious to learn whether either of the others had noticed the same strange happening in the camp of Blackfeet, “I want to ask you why that Indian, who was watching us go away, failed to give the alarm?”
Dick stopped short. He seemed to be astonished beyond measure at what the other had just said.
“Do you mean to tell me, Roger, that you believe any such thing?” he asked.
“I certainly do,” came the response. “I looked back more times than I can tell you, and there he was, craning his neck and watching everything we did. To the very last I saw him still looking.”
“Yes, he is right!” declared Mayhew, breaking in upon the dialogue as though he, too, had been grappling with a mystery that he could not understand. “I saw the same thing. The Indian was watching you, I could swear to that. Once he dropped his head, only to raise it again. He seemed to be having some difficulty about holding himself up long, for he was bandaged about the shoulder.”
“Oh!”
The way Dick said that one word told Roger that he must have seen a great light. But why should Dick show signs of satisfaction; for that was clearly expressed in his tone?
“You have guessed the answer, Dick?” exclaimed Roger, hastily. “Please tell us what it is, because, for one, I am groping in the dark.”