'He's in mourning for his wife,' I said.

She crossed herself. 'I did not know.'

'She was killed in Germany. When I was last here he talked about finding his wife's killer. That could be very dangerous for him.'

She looked at me and nodded like a child being warned about speaking to strangers.

'What did you think this morning, Ursi?' I asked her. 'What did you think when you arrived and found he had gone?'

'I was worried.'

'You weren't so worried that you called the police,' I pointed out. 'You went on working; doing the laundry as if nothing was amiss.'

'Yes,' she said, and looked over her shoulder as if she thought Dicky might be about to climb through the window and pounce on her. Then she smiled, and in an entirely new and relaxed voice said, 'I think perhaps he has gone skiing.'

'Skiing? In October?'

'On the glacier.' She was anxious to persuade me. 'Last week he spent a lot of money on winter sport clothes. He bought silk underwear, silk socks, some cashmere roll-necks and a dark brown fur-lined ski jacket.'

I said, 'I need to use the phone for long distance.' She nodded. I called London and told them to dig out George's passport application and leave a full account of its entries on the hotel fax.

'Let's get a cab and go to town, Ursi,' I said.

We went to the jeweler's first. Not even Forest Lawn can equal the atmosphere of silent foreboding that you find in those grand jewelery shops on Zurich's Bahnhofstrasse. The glass showcases were ablaze with diamonds and pearls. Necklaces and brooches; chokers and tiaras; gold wristwatches and rings glittered under carefully placed spotlights. The manager wore a dark suit and stiff collar, gold cuff links and a diamond stud in his sober striped tie. His face was politely blank as I walked with Ursi to the counter upon which three black velvet pads were arranged at precisely equal intervals.

'Yes, sir?' said the manager in English. He had categorized us already; middle-aged foreigner accompanied by young girl. What could they be here for, except to exchange those vows of carnal sin at which only a jeweler can officiate?

'Mr. George Kosinski is a customer of yours?'

'I cannot say, sir.'

'This is Miss Maurer. She works for Mr. Kosinski. I am Mr. Kosinski's brother-in-law.'

'Indeed.'

'He came to your shop the day before yesterday. He disappeared immediately afterwards. I mean he didn't come home. We don't want to go to the police — not yet, at any rate — but we are concerned about him.'

'Of course, sir,' he said sympathetically and adjusted the velvet pad on the counter, pulling it a fraction of an inch towards him as if lining it up more precisely with the other velvet pads.

'We thought he might have said something to you that would help us find him. He has a medical record of memory loss, and he has been under a severe domestic strain.'

The man took a deep breath, as if coming to an important decision. 'I know Mr. Kosinski. And your sister, too. Mrs. Kosinski is an old and valued customer.'

Here was another one who didn't know that Tessa was dead. So that was how George preferred it. Perhaps he felt he could keep out of trouble more easily if everyone thought there was a Mrs. Kosinski who might descend upon them any minute. I let the jeweler think Tessa was my sister; it was better that way. 'Did he purchase something here?'

'No, sir.' For one terrible moment I thought he'd changed his mind about helping me. He looked as if he was having second thoughts about revealing details of his customers. But then he continued. 'No, he brought something to me, an item of jewelery for cleaning. He said nothing that would help you find him. He seemed very relaxed and in good health.'

'That's encouraging,' I said. 'Was it a wristwatch?'

'For cleaning? No, we don't service watches; they have to go back to the factory. No, it was a ring he brought for cleaning.'

'May we see it?'

'I'll enquire if it is on the premises. Some items have to go to specialists.'

He went through a door in the back of the shop and came back after a few minutes using a smooth white cloth to hold an elaborate diamond ring. 'It's a lovely piece; not at all the modern fashion, but I like it. A heart-shaped diamond mounted in platinum with four smaller baguette diamonds. Quite old. You can see how worn it is.' He held it up, gripping it by means of the towel. The ring was dripping wet with some sort of cleaning fluid which had an acrid smell. 'It was encrusted with mud and dirt when he brought it in. In twenty years I have never seen a piece of jewelery treated in such fashion. A ring like this has to be cleaned very carefully.'

'He didn't say he was going abroad? His next call was the airport.'

He shook his head sadly. 'I'm afraid he gave no indication . . . it seemed as if he was on a shopping trip, doing everyday chores.'

We exchanged business cards. I gave him one of Dicky's, an anonymous one with one of our London-based outside phone lines on it. I scribbled my name on the back of it. 'If you remember anything else at all I'd be obliged.'

He took the card and read it carefully before putting it into his waistcoat pocket. 'I will, sir.'

*

'While you've been wasting your time, talking to the maid and looking at wristwatches, I have been thinking,' said Dicky after I told him what I had been doing that after-noon, omitting the bit about paying for Ursi's alarmingly expensive facial and manicure.

'That's good, Dicky,' I said.

'I suppose that analytical thinking has always been my strong point,' Dicky mused. 'Sometimes I think I'm wasting my time at London Central.'

'Perhaps you are,' I said.

'Reports and statistics. Those Tuesday morning conferences . . . trying to brief the old man.' As if remembering the last time he briefed the old man, he looked at red marks on his fingers which had not completely healed over. 'He's here,' said Dicky like a conjuror.

'The old man?'

'The old man!' said Dicky scornfully. 'Will you wake up, Bernard. George Kosinski. George Kosinski is here.'

'In the hotel? You've seen him?'

'No, I haven't seen him,' said Dicky irritably. 'But it's obvious when you sit and concentrate on the facts as I have been doing. Think it over, Bernard. Kosinski left home without even packing a bag. No one came to visit him; he just up and left the house. No cash, no clothes. How would he manage?'

'What's your theory then?' I asked with genuine interest.

'It's obvious.' He chuckled. 'Obvious. That bastard Kosinski is right here in Zurich, laughing at us. He's checked into one of these big luxury hotels, and he's biding his time until we depart again.' I said nothing; I knew what was coining; I could read Dicky's mind when his eyes glittered that way. 'Our visit here was leaked, Bernard, old son.'

'Not by me, Dicky.' The reality behind Dicky's new theory was that his experimental dalliance with investigative enquiries at the airport had been met by airport security men as boorish, obstinate and status-conscious as Dicky could be. Having failed at the airport he'd come back to the hotel to evolve a more convenient theory.

'By someone. We won't argue,' he said generously. 'Who knows? It could have been some careless remark by one of the secretaries. The Berne office knew we were coining here. They have local staff.'

I nodded. Of course, local staff. No one British must be suspected of such a thing.

'Tomorrow you can start checking the hotels. Big and small; near and far; cheap and flashy. You can take this photo of him — I pinched it from the drawing room-and go round and show it to them. We'll soon find him if we're systematic.'

'And which hotels will you be doing?'

'I will have to go to Berne. It's tiresome but I must keep the ambassador in the picture or the embassy people will feel neglected.'