‘Pulling the fabric away from the body reveals the head almost completely severed from the torso. The body itself shows signs of advancing decomposition, consistent with it having been in the trunk for at least four to five weeks. The hands show no signs of defence wounds, and I’m wrapping them for further examination of the fingers in the laboratory, although since she clearly bit her nails I expect I’ll be wasting my time.’ He took two thick paper bags out of his case and I helped him secure them over the dead girl’s hands.

‘Hallo, what’s this? Do my eyes deceive me, or is this a bloodstained blouse which I see before me?’

‘It looks like her BdM uniform,’ I said, watching him pick up first the blouse, and then a navy skirt.

‘How extraordinarily thoughtful of our friend to send us her laundry. And just when I thought he was becoming just a little bit predictable. First an anonymous telephone call to the Alex, and now this. Remind me to consult my diary and check that it’s not my birthday.’

Something else caught my eye, and I leant forward and picked the small square piece of card out of the trunk.

‘Irma Hanke’s identity card,’ I said.

‘Well that saves me the trouble, I suppose.’ Illmann turned his head towards the sergeant. ‘The trunk also contained the dead girl’s clothing and her identity card,’ he dictated.

Inside the card was a smudge of blood.

‘Could that be a fingermark, do you think?’ I asked him.

He took the card out of my hand and looked carefully at the mark. ‘Yes, it could. But I don’t see the relevance. An actual fingerprint would be a different story. That would answer a lot of our prayers.’

I shook my head. ‘It’s not an answer. It’s a question. Why would a psycho bother to look at his victim’s identity? I mean, the blood indicates that she was probably already dead, assuming it’s hers. So why does our man feel obliged to find out her name?’

‘Perhaps in order that he might name her in his anonymous call to the Alex?’

‘Yes, but then why wait several weeks before making the call? Doesn’t that strike you as strange?’

‘You have a point there, Bernie.’ He bagged the identity card and placed it carefully in his case, before looking back into the trunk. ‘And what have we here?’ He lifted up a small but heavy-looking sack and glanced inside. ‘How’s this for strange?’ He held it open for my inspection. It was the empty toothpaste tubes that Irma Hanke had been collecting for the Reich Economy Programme. ‘Our killer does seem to have thought of everything.’

‘It’s almost as if the bastard were defying us to catch him. He gives us everything. Think how smug he’ll be if we still can’t nail him.’