the safe.â
âI paid for it,â said Six. âJust as I paid for the house. Paul didnât have a great deal of money. When Greteâs mother died I gave her the jewels, and at the same time I had a safe installed so that she could keep them there when they werenât in the vault at the bank.â
âSo she had been wearing them quite recently?â
âYes. She accompanied my wife and myself to a ball just a few nights before she was killed.â
âWhat kind of safe was it?â
âA Stockinger. Wall-mounted, combination lock.â
âAnd who knew the combination?â
âMy daughter, and Paul, of course. They had no secrets from each other, and I believe he kept certain papers to do with his work there.â
âNobody else?â
âNo. Not even me.â
âDo you know how the safe was opened, if there were any explosives used?â
âI believe there were no explosives used.â
âA nutcracker then.â
âHowâs that?â
âA professional safe-cracker. Mind you, it would have to be someone very good to puzzle it.â Six leaned forward on the sofa.
âPerhaps,â he said, âthe thief forced Grete or Paul to open it, then ordered them back to bed, where he shot them both. And afterwards he set fire to the house in order to cover his tracks - throw the police off the scent.â
âYes, thatâs possible,â I admitted. I rubbed a perfectly circular area of smooth skin on my otherwise stubbly face: itâs where a mosquito bit me when I was in Turkey, and ever since then Iâve never had to shave it. But quite often I find myself rubbing it when I feel uneasy about something. And if thereâs one thing guaranteed to make me feel uneasy, itâs a client playing detective. I didnât rule out what he was suggesting might have happened, but it was my turn to play the expert: âPossible, but messy,â I said. âI canât think of a better way of raising the alarm than making your own private Reichstag. Playing Van der Lubbe and torching the place doesnât sound like the sort of thing a professional thief would do, but then neither does murder.â There were a lot of holes in that of course: I had no idea that it was a professional; not only that, but in my experience itâs rare that a professional job also involves murder. I just wanted to hear my own voice for a change.
âWho would have known she had jewels in the safe?â I asked.
âMe,â said Six. âGrete wouldnât have told anyone. I donât know if Paul had.â
âAnd did either of them have any enemies?â
âI canât answer for Paul,â he said, âbut Iâm sure that Grete didnât have an enemy in the world.â While I could accept the possibility that Daddyâs little girl always brushed her teeth and said her prayers at night, I found it hard to ignore how vague Six was about his son-in-law. That made the second time he was uncertain about what Paul would have done.
âWhat about you?â I said. âA rich and powerful man like yourself must have your fair share of enemies.â He nodded. âIs there anyone who might hate you bad enough to want to get back at you through your daughter?â
He re-kindled his Black Wisdom, puffed at it and then held it away from him between the tips of his fingers. âEnemies are the inevitable corollary of great wealth, Herr Gunther,â he told me. âBut these are business rivals Iâm talking about, not gangsters. I donât think any of them would be capable of something as cold-blooded as this.â He stood up and went to attend to the fire. With a large brass poker he dealt vigorously with the log that was threatening to topple out of the grate. While Six was off-guard I jabbed him with one about the son-in-law.
âDid you and your daughterâs husband get on?â
He