"Come."

The boys heard the word, and they moved slowly forward through the darkness, now and then feeling dank walls on either hand.

For a considerable distance they went on in this way, and then the passage seemed to widen out, and they felt that they had entered a cave.

"Keep close ter me," directed the girl.

"Here, give me your hands. Now you-uns can't git astray."

At last a strange smell came to their nostrils, seemingly on the wings of a light breath of air.

"What is that?" asked Frank.

"Ther mill whar ther moonshine is made."

"Oh!"

Now the boys recognized the smell.