“Then you think we could find a way up there?” said Chris, shading his eyes and looking across the valley at the perpendicular sunlit cliff full of window or door openings similar to those from which they gazed.

“I’m beginning to think we could, my lad. What do you say to going across and having a search?”

“Yes; let’s go at once,” cried Chris.

“Aren’t you too stiff?”

“Stiff? No. Come along!”

At that moment Ned, who had been staring hard at the opposite terraces, suddenly caught Griggs by the arm, gripping it sharply.

“What’s the matter?”

“Keep quiet! Don’t move,” said the boy in a whisper, though no one could have heard from the spot at which he looked. “There’s something moving about on that top terrace across yonder.”

“A bear?” said Chris eagerly.

“Perhaps. No; it’s standing up now.”