"Do you tango?" she asked.
I was tired of saying "No."
"Yes," I said.
"Are you sure you wouldn't like to find somebody else to do it with?"
"Quite, thanks. The fact is I do it rather differently from the way they're doing it here to-night. You see, I actually learnt it in the Argentine."
She was very much interested to hear this.
"Really? Are you out there much? I've got an uncle living there now. I wonder if——"
"When I say I learnt it in the Argentine," I explained, "I mean that I was actually taught it in St. John's Wood, but that my dancing mistress came from——"
"In St. John's Wood?" she said eagerly. "But how funny! My sister is learning there. I wonder if——"
She was a very difficult person to talk to. Her relations seemed to spread themselves all over the place.