ing that the earthquake, or landslide, was not yet at an end. The boy held his breath, wondering if it would come closer and annihilate him. But the rumble remained at a distance, and in less than a minute passed away completely.
"Thank fortune, that didn't come here!" he murmured, and passed his hand over his forehead, upon which the thick beads of cold perspiration had gathered. He strained his ears for several seconds longer, but all around him was now as silent as a tomb.
"Oh, I must get out!" he muttered, despairingly. "I must! There must be some kind of an opening somewhere!"
Again he stumbled onward, into one passageway after another. Once the place was so narrow that he became fairly wedged fast and had all he could do to draw back. Then a sudden chill swept through his body, making his teeth chatter.
Must he give up? Was that cave to become his tomb?
The thought forced itself upon Dave in spite of his effort to take a more cheerful view of the situation. He was hemmed in—not an avenue of escape seemed open.
"I won't give up! I won't! I won't!" he muttered, half savagely, and got up from the rock on which he had sunk down to rest. Climbing around in that place where the footing was so
