“Well, how about taking him with us?”

“I hardly like to do that. Wouldn’t it be better to take the bar away and fix those ropes so that he can work them off after a bit?”

“All right.”

Bob removed the bar and threw open the door at the same time flashing the light onto the floor of the cave where he had left the man.

“Guess he’s been doing some rolling,” he said to Jack, who was just behind him, as he failed to see him.

“Well, he can’t be far,” Jack declared as he stepped into the cave ahead of Bob. “Well, what do you know about that?” he asked a moment later after the beam of light had searched the entire cave and had failed to disclose the man.

“He’s gone!” Bob gasped as he realized the fact.

“But it’s impossible.”

“I know, but it seems to be a fact nevertheless.”

A hurried search of the cave gave them not the slightest hint as to the manner in which the man had made his escape. The place, at the back of the cave, which had appeared to be a possible means of egress proved only a short cul-de-sac and so far as they could see there was no other opening save the front door.