The boys crept along under the dim light of the infrequent stars, and finally crouched down behind an angle of rock which was not more than twenty feet removed from where Cameron stood.
They had hardly taken their position when a second figure made its appearance. The two stood talking together in whispers for a short time and then started to walk away.
"There's something doing, all right!" exclaimed Sandy.
"Yes, indeed, there is!" agreed George. "They wouldn't come out into such a hole as this after midnight to tell each other what good fellows they are, or anything like that."
"I'm getting suspicious!" Sandy chuckled.
"Why suspicious?"
"Because those fellows whispered!"
"I see the point," replied George. "From our standpoint those fellows were all alone here in one of the wild places of Alaska, yet they drew close together and whispered when they communicated with each other!"
"They wouldn't do that," urged Tommy, "unless they were afraid of being overheard. It shows that they believe some one to be watching them."
The two men were now moving quite swiftly up the slope of the mountain. At times they were entirely hidden by the luxuriant growths, and at times they came out on little bald spots where rock outcropped to the exclusion of vegetation. The boys followed on into the thickets, pausing now and then to listen for the sounds of the advance of the others.