‘Thanks, no. But as long as you’re in the mood to do an ex-bull a favour, there is one thing you could do. I’ve got an assistant, Inge Lorenz. Perhaps you would telephone her and let her know I’m being held.’ He gave me a pencil and paper and I wrote down three phone numbers. The Inspektor seemed a decent sort of fellow, and I wanted to tell him that Inge had gone missing after driving my car to Wannsee. But that would have meant them searching my car and finding Marlene Sahm’s diary, which would undoubtedly have incriminated her. Maybe Inge had been taken ill, and had caught a cab somewhere, knowing that I’d be along to pick up the car. Maybe.

‘What about friends on the force? Somebody up at the Alex perhaps.’

‘Bruno Stahlecker,’ I said. ‘He can vouch that I’m kind to children and stray dogs, but that’s about it.’

‘Too bad.’ I thought for a moment. About the only thing that I could do was call the two Gestapo thugs who had ransacked my office, and throw them what I’d learned. It was a fair bet they’d be very unhappy with me, and I guessed that calling them would as likely win me an all-expenses trip to a KZ, as letting the local Inspektor charge me with Gert Jeschonnek’s murder.

I’m not a gambling man, but they were the only cards I had.

Kriminalkommissar Jost drew thoughtfully on his pipe.

‘It’s an interesting theory,’ he said. Dietz stopped playing with his moustache for long enough to snort contemptuously. Jost looked at his Inspektor for a moment, and then at me. ‘But as you can see, my colleague finds it somewhat improbable.’

‘That’s putting it lightly, mulemouth,’ muttered Dietz. Since scaring my secretary and smashing my last good bottle he seemed to have got uglier.

Jost was a tall, ascetic-looking man, with a face that wore a stag’s permanently startled expression, and a scrawny neck that stuck out of his shirt collar like a tortoise in a rented shell. He allowed himself a little razor-blade of a smile. He was about to put his subordinate very firmly in his place.

‘But then theory is not his strong point,’ he said. ‘He’s a man of action, aren’t you, Dietz?’ Dietz glowered back, and the Kommissar’s smile widened a fraction. Then he removed his glasses and began to clean them in such a way as might serve to remind anyone else in the interrogation-room that he regarded his own intellectualism as something superior to a vitality that was merely physical. Replacing his glasses he removed his pipe and gave way to a yawn that bordered on the effete.