“That can hardly be explained without further investigation. Perhaps an enemy descended upon them and swept them out of existence. Perhaps a pestilence or a flood.”

“There must have been some reason for it.”

“Just so.”

“Well, what shall we do?”

“I propose that we push our way down into this abandoned country. We will doubtless find some trace of the Polar people, perhaps the ruins of their town.”

“I agree with you, and I am eager to go on. Let us lose no time.”

“One moment, please!”

Frank placed his glass to his eyes and studied some objects in the valley below for a few moments.

Then he exclaimed:

“Have you a glass, Randall?”