Mrs Jennings [alarmed, aside]. The man is mad, I do believe!

Duke. Now I know that you are she whom I have been seeking! Oh, what unlooked for happiness! You are the Princess Blakowska!

Mrs Jennings. I, the Princess Blakowska!

Duke. Yes, I have discovered your secret—don't try to conceal it any more.

Mrs Jennings [terrified, looks at him]. Oh!

Duke. You are, aren't you? Oh, say I am right!

Mrs Jennings [humouring—heartily]. Of course, yes, of course! I am the Princess Blakowska.

Duke. Oh, what unlooked for good fortune! That after thinking of you, dreaming of you, going across London to seek you in vain, Providence should bring us together!

Mrs Jennings [aside]. This is horrible! He is quite out of his mind! Oh, what shall I do? Where is the cord of communication with the guard! Outside that window probably! [Aloud]. I feel a little faint—I should like to have some air. [Goes to window].

Duke. Oh, pray let me!