He ushered me towards the big mahogany door, which swung open to reveal an ashen-faced butler who stood aside as we crossed the threshold and stepped into the wide entrance hall. It was the kind of hall that made you feel lucky just to have got through the door. Twin flights of stairs with gleaming white banisters led up to the upper floors, and on the ceiling hung a chandelier that was bigger than a church-bell and gaudier than a stripper’s earrings. I made a mental note to raise my fees.

The butler, who was an Arab, bowed gravely and asked me for my hat.

‘I’ll hang on to it, if you don’t mind,’ I said, feeding its brim through my fingers. ‘It’ll help to keep my hands off the silver.’

‘As you wish, sir.’

Schemm handed the butler his own hat as if to the manor born. Maybe he was, but with lawyers I always assume that they came by their wealth and position through avarice and by means nefarious: I never yet met one that I could trust. His glove he neatly removed with an almost double-jointed contortion of his fingers, and dropped it into his hat. Then he straightened his necktie and asked the butler to announce us.

We waited in the library. It wasn’t big by the standards of a Bismarck or a Hindenburg, and you couldn’t have packed more than six cars between the Reichstag-sized desk and the door. It was decorated in early Lohengrin, with its great beams, granite chimney-piece in which a log crackled quietly, and wall-mounted weaponry. There were plenty of books, of the sort you buy by the metre: lots of German poets and philosophers and jurists with whom I can claim a degree of familiarity, but only as the names of streets and cafés and bars.