The gallery was situated in what the art trade calls the naughty end of Bond Street, and Smiley arrived on its doorstep that Monday morning long before any respectable art dealer was out of bed.

His Sunday had passed in mysterious tranquillity. Bywater Street had woken late, and so had Smiley. His memory had served him while he slept, and it continued to serve him in modest spasms of enlightenment throughout the day. In terms of memory at least, his black Grail had drawn a little nearer. His telephone had not rung once, a slight but persistent hangover had kept him in the contemplative mood. There was a club he belonged to, against his beter judgement, near Pall Mall, and he lunched there in imperial solitude on warmed-up steak-andkidney pie. Afterwards, from the head porter, he had requested his box from the club safe and discreetly abstracted a few illicit possessions, including a British passport in his former work name of Standfast, which he had never quite managed to return to Circus Housekeepers; an international driving licence to match; a sizeable sum of Swiss francs, his own certainly, but equally certainly retained in defiance of the Exchange Control Act. He had them in his pocket now.

The gallery had a dazzling whiteness and the canvases in its armoured glass window were much the same : white upon white, with just the faintest outline of a mosque or St Paul's Cathedral - or was it Washington? - drawn with a finger in the thick pigment. Six months ago the sign hanging over the pavement had proclaimed The Wandering Snail Coffee Shop. Today it read 'ATELIER BENATI, GOÛT ARABE, PARIS, NEW YORK, MONACO,' and a discreet menu on the door proclaimed the new chef's specialities; 'Islam classique-moderne. Conceptual Interior Design. Contracts catered. Sonnez.'

Smiley did as he was bidden, a buzzer screamed, the glass door yielded. A shop-worn girl, ash blonde and half-awake, eyed him warily over a white desk.

'If I could just look round,' said Smiley.

Her eyes lifted slightly towards an Islamic heaven. 'The little red spots mean sold,' she drawled, and, having handed him a typed price-list, sighed and went back to her cigarette and her horoscope.

For a few moments Smiley shuffled unhappily from one canvas to another till he stood in front of the girl again.

'If I could possibly have a word with Mr Benati,' he said.

'Oh I'm afraid Signor Benati is fully involved right now. That's the trouble with being international.'

'If you could tell him it's Mr Angel,' Smiley proposed in the same diffident style. 'If you could just tell him that. Angel, Alan Angel, he does know me.'

He sat himself on the S-shaped sofa. It was priced at two thousand pounds and covered in protective cellophane which squeaked when he moved. He heard her lift the phone and sigh into it.

'Got an angel for you,' she drawled, in her pillow-talk voice. 'As in Paradise, got it, angel?'

A moment later he was descending a spiral staircase into dark. ness. He reached the bottom and waited. There was a click and half a dozen picture lights sprang on to empty spaces where no pictures hung. A door opened revealing a small and dapper figure, quite motionless. His full white hair was swept back with bravado. He wore a black suit with a broad stripe and shoes with pantomime buckles. The stripe was definitely too big for him. His right fist was in his jacket pocket, but when he saw Smiley he drew it slowly out, and held it at him like a dangerous blade.

'Why, Mr Angel,' he declared in a distinctly mid-European accent, with a sharp glance up the staircase as if to see who was listening. 'What pure pleasure, sir. It has been far too long. Come in, please.'

They shook hands, each keeping his distance.

'Hullo, Mr Benati,' Smiley said, and followed him to an inner room and through it to a second, where Mr Benati closed the door and gently leaned his back against it, perhaps as a bulwark against intrusion. For a while after that, neither man spoke at all, each preferring to study the other in a silence bred of mutual respect. Mr Benati's eyes were brown and swift and they looked nowhere long and nowhere without a purpose. The room had the atmosphere of a sleazy boudoir, with a chaise longue and a pink handbasin in one corner.

'So how's trade, Toby?' Smiley asked.

Toby Esterhase had a special smile for that question and a special way of tilting his little palm.

'We have been lucky, George. We had a good opening, we had a fantastic summer. Autumn, George' - the gesture again - 'autumn I would say is on the slow side. One must live off one's hump actually. Some coffee, George? My girl can make some.'

'Vladimir's dead,' said Smiley after another longish gap. 'Shot dead on Hamvstead Heath.'

'Too bad. That old man, huh? Too bad.'

'Oliver Lacon has asked me to sweep up the bits. As you were the Group's postman, I thought I'd have a word with you.'

'Sure,' said Toby agreeably.

'You knew, then? About his death?'

'Read it in the papers.'

Smiley let his eye wander round the room. There were no newspapers anywhere.

'Any theories about who did it?' Smiley asked.

'At his age, George? After a lifetime of disappointments, you might say? No family, no prospects, the Group all washed up - I assumed he had done it himself. Naturally.'

Cautiously Smiley sat himself on the chaise longue and, watched by Toby, picked up a bronze maquette of a dancer that stood on the table.

'Shouldn't this be numbered if it's a Degas, Toby?' Smiley asked.

'Degas, that's a very grey area, George. You've got to know exactly what you are dealing with.'

'But this one is genuine?' Smiley asked, with an air of really wishing to know.

'Totally.'

'Would you sell it to me?'

'What's that?'

'Just out of academic interest. Is it for sale? If I offered to buy it, would I be out of court?'

Toby shrugged, slightly embarrassed.

'George, listen, we're talking thousands, know what I mean? Like a year's pension or something.'

'When was the last time you had anything to do with Vladi's network, actually, Toby?' Smiley asked, returning the dancer to its table.

Toby digested this question at his leisure.

'Network?' he echoed incredulously at last. 'Did I hear network, George?' Laughter in the normal run played little part in Toby's repertoire but now he did manage a small if tense outburst. 'You call that crazy Group a network? Twenty cuckoo Balts, leaky like a barn, and they make a network already?'

'Well we have to call them something,' Smiley objected equably.

'Something, sure. Just not network, okay?'

'So what's the answer?'

'What answer?'

'When did you last have dealings with the Group?'

'Years ago. Before they sacked me. Years ago.'

'How many years?'

'I don't know.'

'Three?'

'Maybe.'

'Two?'

'You trying to pin me down, George?'

'I suppose I am. Yes.'

Toby nodded gravely as if he had suspected as much all along : 'And have you forgotten, George, how it was with us in lamplighters? How overworked we were? How my boys and I played postman to half the networks in the Circus? Remember? In one week how many meetings, pick-ups? Twenty, thirty? In the high season once - forty? Go to Registry, George. If you've got Lacon behind you, go to Registry, draw the file, check the encounter sheets. That way you see exactly. Don't come here trying to trip me up, know what I mean? Degas, Vladimir - I don't like these questions. A friend, an old boss, my own house - it upsets me, okay?'

His speech having run for a deal longer than either of them apparently expected, Toby paused, as if waiting for Smiley to provide the explanation for his loquacity. Then he took a step forward, and turned up his palms in appeal.

'George,' he said reproachfully. 'George, my name is Benati, okay?'

Smiley seemed to have lapsed into dejection. He was peering gloomily at the stacks of grimy art catalogues strewn over the carpet.

'I'm not called Hector, definitely not Esterhase,' Toby insisted. 'I got an alibi for every day of the year - hiding from my bank manager. You think I want trouble round my neck? Émigrés, police even. This an interrogation, George?'

'You know me, Toby.'

'Sure. I know you, George. You want matches so you can burn my feet?'

Smiley's gaze remained fixed upon the catalogues. 'Before Vladimir died - hours before - he rang the Circus,' he said. 'He said he wanted to give us information.'

'But this Vladimir was an old man, George!' Toby insisted protesting, at least to Smiley's ear, altogether too much. 'Listen, there's a lot of guys like him. Big background, been on the payroll too long; they get old, soft in the head, start writing crazy memoirs, seeing world plots everywhere, know what I mean?'

On and on, Smiley contemplated the catalogues, his round head supported on his clenched fists.

'Now why do you say that exactly, Toby?' he asked critically. 'I don't follow your reasoning.'

'What do you mean, why I say it? Old defectors, old spies, they get a bit cuckoo. They hear voices, talk to the dicky-birds. It's normal.'

'Did Vladimir hear voices?'

'How should I know?'

'That's what I was asking you, Toby,' Smiley explained reasonably, to the catalogues. 'I told you Vladimir claimed to have news for us, and you replied to me that he was going soft in the head. I wondered how you knew. About the softness of Vladimir's head. I wondered how recent was your information about his state of mind. And why you pooh-poohed whatever he might have had to say. That's all.'

'George, these are very old games you are playing. Don't twist my words. Okay? You want to ask me, ask me. Please. But don't twist my words.'

'It wasn't suicide, Toby,' Smiley said, still without a glance at him. 'It definitely wasn't suicide. I saw the body, believe me. It wasn't a jealous husband either - not unless he was equipped with a Moscow Centre murder weapon. What used we to call them, those gun things? "Inhumane killers", wasn't it? Well, that's what Moscow used. An inhumane killer.'

Smiley once more pondered, but this time - even if it was too late - Toby had the wit to wait in silence.

'You see, Toby, when Vladimir made that phone call to the Circus he demanded Max. Myself, in other words. Not his postman, which would have been you. Not Hector. He demanded his vicar, which for better or worse was me. Against all protocol, against all training, and against all precedent. Never done it before. I wasn't there of course, so they offered him a substitute, a silly little boy called Mostyn. It didn't matter because in the event they never met anyway. But can you tell me why he didn't ask for Hector?'