tired the boys out, and soon, in spite of the surroundings, one after another fell into a light doze. The sleep did all of them good, especially Dick, who declared on awakening that he felt almost as well as ever.
"Only I'm as hungry as a bear," he added.
"Ditto myself," came from Tom. "I move we try to break out of this dingy hole."
"All right; but where shall we break to?" put in Sam. "I can't see much more than I could last night."
The matter was talked over, and presently they scattered, to feel along the ribbed walls of the hold.
For a long time nobody felt anything of importance, but at last Sam let out a soft cry:
"I've found something of a door!"
"Good for you," answered Tom. "Can you open it?"
"No, there seems to be a bar or something on the other side."
The others rejoined the youngest Rover, and made out the door quite plainly, for there was a broad crack at the top and at the side opposite the hinges. There was a bar, true enough.
"If we had something that we could slip into that crack, we might move the bar," observed Dick.
