"How do you suppose that car got in here without our hearing it?"
"I don't know. Of course they had the cutout closed."
"Do you think that man has gone for help?"
"I wouldn't be surprised."
"Then now is our chance to get out of here."
"Perhaps he left a guard."
"I can't help it. At any rate we'll never have a better opportunity than this."
"Shall we smash the door in with a chair?" asked Bob.
"I don't see what else we can do."
"It's a chance."