Another hour went by, so slowly that it seemed three. Then, of a sudden, Dick uttered an exclamation.
"I've struck a prize, Sam!"
"What is it?"
"A bit of candle."
"Humph! What good will that do, if you haven't any match?"
"But I have several matches," answered the eldest Rover, and a second later came a faint scratch, and then the bit of candle, dirty and mouse-gnawed, was lit.
It was not much of a light, but it was far better than nothing, and both boys felt light-hearted when they could see each other once more.
"Let us make another examination of the hole," suggested Dick.
"Something may have slipped us before."
They went over each part of the walls with great care. On one side, a portion of the stones was set in squarely.
"This looks as if they had at one time closed some sort of a passageway here," remarked Dick. "I should like to know what is beyond."