Duke. Why not?
Mrs Jennings. One never knows who they are.
Duke. That is the beauty of it. I think that going about unknown is rather enjoyable.
Mrs Jennings. It's a cheap enjoyment at any rate. [Whistle heard]. Oh, there's a horrid tunnel. Now we shall be smothered.
[The stage becomes dark].
Duke [loud]. What a horrid noise!
Mrs Jennings. What!
Mrs Jennings. I can't hear.
Duke. What?