CHAPTER XVII UNDERGROUND WORK
One day John was standing at the back of the cave looking up through the opening which was there. Here it was that the billy goat had given him such a fright a few weeks before. This time, however, he did not see any “white bearded old man” as he gazed up into the aperture, but he did spy something almost equally interesting.
“Hey, Fred!” he called. “Come here a minute.”
Fred hastened to respond to his friend’s summons and soon reached the spot where John was standing.
“What do you want, String?” he inquired.
“Look up through that opening.”
“All right,” said Fred, doing as he had been directed. “I’m looking.”
“Don’t you see anything?”
“Sure I do. I see the sky.”
“Don’t be silly, Fred,” exclaimed John. “In the opening, I mean.”
“I see dirt.”
“Is tha
