“But, sir, I am not asking you to see my grandmother here; you will realise from what I am trying to tell you that she is not in a fit state to come; what I am asking is that you should call at our house in half an hour’s time, when I have taken her home.”

“Call at your house! Really, sir, you must not expect me to do that. I am dining with the Minister of Commerce. I have a call to pay first. I must change at once, and to make matters worse I have torn my coat and my other one has no buttonholes for my decorations. I beg you, please, to oblige me by not touching the switches. You don’t know how the lift works; one can’t be too careful. Getting that buttonhole made means more delay. Well, as I am a friend of your people, if your grandmother comes here at once I will see her. But I warn you that I shall be able to give her exactly a quarter of an hour, not a moment more.”

I had started off at once, without even getting out of the lift which Professor E⁠⸺ had himself set in motion to take me down again, casting a suspicious glance at me as he did so.