Inge looked round the doorway. ‘Do you have any idea who it is?’ I rolled up my sleeve and put my arm into the incinerator. ‘Yes, I do,’ I said, feeling around in the cold ash. My fingers touched something hard and long. I drew it out, and regarded it objectively. It was hardly burnt at all. Not the sort of wood that burns easily. At the thicker end it was split, revealing another lead weight, and an empty socket for the one I had found on the carpet in the dining room upstairs. ‘His name was Gerhard Von Greis, and he was a high-class squeeze-artist. Looks like he was paid off, permanently. Someone combed his hair with this.’

‘What is it?’

‘A length of broken billiard cue,’ I said, and thrust it back into the stove.

‘Shouldn’t we tell the police?’

‘We don’t have the time to help them feel their way around. Not right now, anyway. We’d just spend the rest of the weekend answering stupid questions.’ I was also thinking that a couple of days’ more fees from Goering wouldn’t go amiss, but I kept that one to myself.

‘What about him - the dead man?’

I looked back at Von Greis’s maggoty body, and then shrugged. ‘He’s in no hurry,’ I said. ‘Besides, you wouldn’t want to spoil the picnic, would you?’

We collected up the scraps of paper that Inge had managed to salvage from the inside of the stove, and caught a cab back to the office. I poured us both large cognacs. Inge drank it gratefully, holding the glass with both hands like a small child who is greedy for lemonade. I sat down on the side of her chair and put my arm around her trembling shoulders, drawing her to me, Von Greis’s death accelerating our growing need to be close.

‘I’m afraid I’m not used to dead bodies,’ she said with an embarrassed smile. ‘Least of all badly decomposed bodies that appear unexpectedly in service-lifts.’

‘Yes, it must have been quite a shock to you. I’m sorry you had to see that. I have to admit he’d let himself go a bit.’

She gave a slight shudder. ‘It’s hard to credit that it was ever human at all. It looked so . . . so vegetable; like a sack of rotten potatoes.’ I resisted the temptation to make another tasteless remark. Instead I went over to my desk, laid out the scraps of paper from Tillessen’s kitchen stove and glanced over them. Mostly they were bills, but there was one, almost untouched by the flames, that interested me a good deal.

‘What is it?’ said Inge.

I picked up the scrap of paper between finger and thumb. ‘A pay-slip.’ She stood up and looked at it more closely. ‘From a pay-packet made up by the Gesellschaft Reichsautobahnen for one of its motorway-construction workers.’

‘Whose?’