“That’s so.” Gerald shook his head sadly. “I don’t see what he can do then.”
Harry threatened them behind the glass. “You open that door, you silly chumps! I want my dinner.”
“Did you get that?” asked The Duke.
Gerald shook his head. “Only a faint murmur. These sound-proof booths are wonderful, aren’t they?”
“Marvelous! Who’d ever suppose that a person could be as near as that and not be heard?”
Harry was now doing his best to kick a hole through the wooden paneling, his expression an interesting mixture of amusement and annoyance.
“Listen!” said The Duke. “I think I hear a tapping!”
“He is probably trying to signal to us, the way they do in the mines, you know, when they’re imprisoned.”
“I know. They let food down to them through pipes somehow, don’t they? I wonder if we could get his dinner to him anyway? We might telephone it, perhaps.”
“If you don’t open this door,” announced Harry desperately, “I’ll break the glass and you fellows will have to pay for it. Fair warning!”