“What is it?” they cried, yet more loudly.
“Did that wizard tell you to light the lamp?” Mark demanded of the Parson.
“N—no,” stammered the other, obviously puzzled, “but how else could it have a shadow?”
For an answer Mark sprang forward and extinguished the lamp. Then he turned and cried triumphantly:
“Look!”
In the partial darkness the light of the moon, coming in through the hole, alone was visible. It struck the lamp right full and cast a deep black shadow over in one corner of the cave, close to the wall.
“Ha!” exclaimed Mark dramatically. “There’s the spot!”
“B’gee!” cried Dewey, falling in with the scheme. “So it is! And that’s why he told you to dig at midnight, b’gee!”
Already the Parson had seized his spade and made a regular kangaroo leap for the place. Before his hilarious comrades could even start to follow he had broken ground once more and was flinging the dirt about with even more reckless eagerness.
“Go it, go it!” roared the rest.