“It’s not her fault, poor child. Her father had her christened that because he’s all for the Revolution, and it seems that the original Charlotte Corday used to go about stabbing oppressors in their baths, which entitles her to consideration and respect. You must meet old Rowbotham, Bertie. A delightful chap. Wants to massacre the bourgeoisie, sack Park Lane, and disembowel the hereditary aristocracy. Well, nothing could be fairer than that, what? But about Charlotte. We were on top of the bus, and it started to rain. I offered her my umbrella, and we chatted of this and that. I fell in love and got her address, and a couple of days later I bought the beard and toddled round and met the family.”

“But why the beard?”