Franklin W. Dixon, Hunting for hidden gold (1928)
“ Joe picked up his shovel again. After a few minutes' energetic digging he uncovered the rest of the sacks and in a short time all four were on the floor of the cave.The Hardy boys examined each in turn, and found that each was identical with the first in that it contained gold dust and nuggets in large quantities. The sight of so much gold sent a thrill through them, just as it has sent a thrill through gold-seekers since the world began. Here was wealth, wealth in the raw, wealth for which men had fought and struggled, wealth that had been drawn from the depths of the earth. ”

