“Sounds as though someone was having a nightmare,” Rex whispered.

“What had we better do?” Jack asked, as he stopped a moment later. “We’re only a few feet away from the cabin now.”

“We want to be mighty careful for one thing,” Rex cautioned in a low whisper. “If we should get caught now all our work would probably go for nothing.”

“Let’s camp right here then.”

They stretched themselves flat on the ground behind a small clump of small cedars and listened.

“That’s no nightmare, if you ask me,” Jack declared, after a few minutes had passed and the sound still continued.

“Guess you’re right,” Rex agreed. “Who ever’s making that noise would have waked up before this if he was asleep.”

“My idea exactly. But somebody in there’s pretty bad off, unless it’s being done for our special benefit. The trouble is, we can’t tell which is right.”

“What do you think we’d better do?”

“I think we had better get back, if you ask me. It’ll be light in a short time now, and if we stay here much longer we may spill the beans, and it’s too much of a risk to do any investigating in the dark.”