He nodded. ‘Through the kitchens and down the emergency stairs. At the bottom there’s a door that leads onto an alley. It’s quiet there. Just a few parked cars. One of them, the light-grey sports, belongs to me.’ He pushed a set of keys towards me. ‘There’s a lighter in the glove-box if you need it. Just leave the keys in the exhaust pipe afterwards, and make sure you don’t mark the paintwork.’

I pocketed the keys and stood up. ‘It’s been nice talking to you, Red. Funny things, fleabites; you don’t notice one when you’re first bitten, but after a while there’s nothing more irritating.’

Red Dieter frowned. ‘Get out of here, Gunther, before I change my mind about you.’

On the way back to Inge I glanced over at the bar. The man in the brown suit was easy enough to spot, and I recognized him as the man who had been looking at Inge earlier on. At our table Inge was finding it easy, if not particularly pleasant, to resist the negligible charm of a good-looking but rather short S S officer. I hurried Inge to her feet and started to draw her away. The officer held my arm. I looked at his hand and then in his face.

‘Slow down, shorty,’ I said, looming over his diminutive figure like a frigate coming alongside of a fishing boat. ‘Or I’ll decorate your lip and it won’t be with a Knight’s Cross and oak leaves.’ I pulled a crumpled five-mark note from out of a pocket and dropped it onto the tabletop.

‘I didn’t think you were the jealous type,’ she said, as I moved her towards the door.

‘Get into the lift and go straight down,’ I told her. ‘When you get outside, go to the car and wait for me. There’s a gun under the seat. Better keep it handy, just in case.’ I glanced over at the bar where the man was paying for his drink. ‘Look, I haven’t got time to explain now, but it’s got nothing to do with our dashing little friend back there.’

‘And where will you be?’ she said. I handed her my car keys.

‘I’m going out the other way. There’s a big man in a brown suit who’s trying to kill me. If you see him coming towards the car, go home and phone Kriminalinspektor Bruno Stahlecker at the Alex. Got that?’ She nodded.

For a moment I pretended to follow her, and then turned abruptly away, walking quickly through the kitchens and out of the fire door.