'I don't suppose anybody knows of it except me. He told me when I was in Paris.'

'I should have supposed it would have been feasible to make inquiries, sir.'

'That's what I said. But he had forgotten her name.'

'That sounds remarkable, sir.'

'I said that too. But it's a fact. All he remembered was that her Christian name was Mabel. Well, you can't go scouring New York for a girl named Mabel, what?'

'I appreciate the difficulty, sir.'

'Well, there it is, then.'

'I see, sir.'

We had got into a mob of vehicles outside the Exhibition by this time, and, some tricky driving being indicated, I had to suspend the conversation. We parked ourselves eventually and went in. Jeeves drifted away, and Sir Roderick took charge of the expedition. He headed for the Palace of Industry, with Biffy and myself trailing behind.