Georgette Heyer said this quote

Miss Grantham's sense of humour got the better of her at this point, and, tottering towards a chair, she sank into it, exclaiming in tragic accents:'Oh Heavens! I am betrayed!' His lordship blenched; both he and Miss Laxton regarded her with guilty dismay. Miss Grantham buried her face in her handkerchief, and uttered one shattering word: 'Wretch!