"Well, I'm not sure, but something did happen," said Fred slowly.
"What was it? Tell us your story," demanded John.
"Either I dreamed or else I surely saw two men moving about the camp. There was a moon and the place was almost as light as day."
"Who were the men?" demanded Grant.
"Perhaps they weren't 'men' at all," replied Fred, who was certain now that he was safe from ridicule.
"Do you think they were our visitors?"
"Yes," replied Fred promptly, "that's exactly what I do think."
"What were they doing?" asked John.
All the Go Ahead Boys were now deeply interested in Fred's statement and eager to hear what more he might say.
"I saw the two figures moving about the camp and at first I thought they were some of you. Pretty soon, however, I made up my mind that they weren't. I turned over on my side and pretended to be asleep, though I was watching these men all the time."