‘For a detective being a cynic is like green fingers in a gardener, Frau Lange. Sometimes it gets me into trouble, but mostly it stops me from underestimating people. So you’ll forgive me I hope if I suggest that this could be the best reason of all for not involving him in this investigation, and that you’ve already thought of it.’ I saw her smile a little, and added: ‘You see how I don’t underestimate you, Frau Lange.’ She nodded. ‘Could he be short of money, do you think?’

‘No. As a board director of the Lange Publishing Company he draws a substantial salary. He also has income from a large trust that was set up for him by his father. It’s true, he likes to gamble. But worse than that, for me, is that he is the owner of a perfectly useless title called Urania.’

‘Title?’

‘A magazine. About astrology, or some such rubbish. It’s done nothing but lose money since the day he bought it.’ She lit another cigarette and sucked at it with lips puckered like she was going to whistle a tune. ‘And he knows that if he were ever really short of money, then he would only have to come and ask me.’

I smiled ruefully. ‘I know I’m not what you might call cute, but have you ever thought of adopting someone like me?’ She laughed at that, and I added: ‘He sounds like a very fortunate young man.’

‘He’s very spoiled, that’s what he is. And he’s not so young any more.’ She stared into space, her eyes apparently following her cigarette smoke. ‘For a rich widow like myself, Reinhard is what people in business call “a loss leader”. There is no disappointment in life that begins to compare with one’s disappointment in one’s only son.’

‘Really? I’ve heard it said that children are a blessing as one gets older.’

‘You know, for a cynic you’re beginning to sound quite sentimental. I can tell you’ve no children of your own. So let me put you right about one thing, Herr Gunther. Children are the reflection of one’s old age. They’re the quickest way of growing old I know. The mirror of one’s decline. Mine most of all.’

The dog yawned and jumped off her lap as if having heard it many times before. On the floor it stretched and ran towards the door where it turned and looked back expectantly at its mistress. Unperturbed at this display of canine hubris, she got up to let the brute out of the room.

‘So what happens now?’ she said, coming back to her chaise longue.