‘But I’ll answer your question. I left. I dare say if I’d waited long enough they’d have weeded me out like all the others. I’m not a National Socialist, but I’m not a fucking Kozi either; I dislike Bolshevism just like the Party does, or at least I think it does. But that’s not quite good enough for the modern Kripo or Sipo or whatever it’s called now. In their book if you’re not for it you must be against it.’

‘And so you, a Kriminalinspektor, left Kripo,’ he paused, and then added in tones of affected surprise, ‘to become the house detective at the Adlon Hotel.’

‘You’re pretty cute,’ I sneered, ‘asking me all these questions when you already know the answers.’

‘My client likes to know about the people who work for him,’ he said smugly.

‘I haven’t taken the case yet. Maybe I’ll turn it down just to see your face.’

‘Maybe. But you’d be a fool. Berlin has a dozen like you - private investigators.’ He named my profession with more than a little distaste.

‘So why pick me?’

‘You have worked for my client before, indirectly. A couple of years ago you conducted an insurance investigation for the Germania Life Assurance Company, of which my client is a major shareholder. While the Kripo were still whistling in the dark you were successful in recovering some stolen bonds.’

‘I remember it.’ And I had good reason to. It had been one of my first cases after leaving the Adlon and setting up as a private investigator. I said: ‘I was lucky.’

‘Never underestimate luck,’ said Schemm pompously. Sure, I thought: just look at the Führer.

By now we were on the edge of the Grunewald Forest in Dahlem, home to some of the richest and most influential people in the country, like the Ribbentrops. We pulled up at a huge wrought-iron gate which hung between massive walls, and Freshface had to hop out to wrestle it open. Ulrich drove on through.

‘Drive on,’ ordered Schemm. ‘Don’t wait. We’re late enough as it is.’ We drove along an avenue of trees for about five minutes before arriving at a wide gravel courtyard around which were set on three sides a long centre building and the two wings that comprised the house. Ulrich stopped beside a small fountain and jumped out to open the doors. We got out.