‘There,’ he whispered, nodding discreetly towards an over-dressed gentleman whose finery looked shabbier with every step that drew him closer to them, ‘is Lord So-and-So, an unlucky gambler living off his expectations at very much the wrong end of Brook Street with a single blackguardly manservant. He’s here tonight looking for some wealthy widow, who’ll fall gratefully into his arms and provide him with the income he knows he deserves.’