The Liar

'Yes, I heard it,' said Sir David. 'By God, this had better be leading somewhere.'

'Indeed it is. You might recall a reference to a chaffinch in my piece. Chaffinch is my name for Martin Szabo. Stefan here is Coaltit, I am Bald Eagle, Adrian is Lyre Bird.'

Adrian blushed again. Why 'Liar Bird'? It didn't seem fair.

'And you, Sir David,' continued Trefusis, 'are Duvet, I don't know why, but you are. I hope that doesn't upset you.'

'I've been called worse things.'

'Oh, surely not?'

'Just get on with it, will you?'

'Very well. In this same broadcast I also uttered these words... let me see . . . the sentence went like this . . . 'reminded me at first of a copy of Izaac Walton's Compleat Angler that I have in my possession'. Yes, I think that was it. This was an instruction to Martin to obey Walton's First Law: Whatever is on the person is not true. 'Reminded me at first of a copy of Izaac Walton's . . .'I knew, you see, that if you or Golka did intercept Martin you would expect to find your treasure in the lining of his coat. In his last interview with his grandson in Hungary, Szabo had deliberately told Martin that this was where Mendax should be secreted. Ychir department's man in Budapest has a contact inside the Hungarian secret police.

Simon tells me he is called 'Locksmith'. 'What you want will be in the lining of Martin Szabo's jacket,' Locksmith no doubt signalled to London, as Bela intended him to. You briefed Golka accordingly: 'Expect to find Mendax in the lining of Pollux's coat,' you will have said. Martin did indeed create an inner pocket to his jacket in which he hid a piece of microcircuitry.

This Lister gratefully took after he had cut the poor boy's throat. I believe you will discover that what you killed that boy to obtain controls the spin cycle of a tumble drier. The wireless set on Martin's dressing table would have yielded a much richer secret. I have it here.'

Trefusis held up the second of the two radios.

'There we have it, you see. Mendax. I know how badly you want it, David, and I am so terribly sorry that I am not in a position to oblige you. Humphrey and Lady Helen, like myself, are old friends of Bela Szabo and we feel that we have the prior claim. Simon's loyalty, naturally, is to his parents-in-law and to me, the devoted godfather of his wife Nancy. Stefan here, as Bela's heir and the brother of Martin, whom you so pitilessly slew, must decide on what punishment should be meted out to you. Lister, I'm afraid, cannot be allowed to live.'

Sir David rose to his feet. 'This has all been most instructive,' he said. 'A tidy operation on your part, Donald. I congratulate you. I must now ask you to present Mendax to me. Mr Lister, if you please.'

Adrian watched as Lister's right hand went slowly to his left side and brought out, from under the lapel of his powder-blue safari jacket, an automatic revolver. At least Adrian supposed it was an automatic revolver. It was certainly some form of hand gun, and it was pointed very directly at the head of Professor Trefusis. Adrian had imagined that he had a lifetime before him in which to acquire all kinds of facts, including a basic knowledge of firearms, enough for instance to be able to tell the difference between a pistol, a revolver, an automatic or a semiautomatic. But now he was to be killed by one such instrument before he had the chance to find out what it might be.

'Mendax,' said Trefusis with no indication of concern, 'is of course yours to keep or dispose of as you will, Sir David. I have no argument against bullets. But I must ask you to allow me to finish my address. Then you may kill us all, as kill us all you surely must, for I am sure I speak for everyone in this room when I say that I have every intention of informing your political masters of the entirely reprehensible part you have played in this affair.'

'Oh certainly I shall kill you all,' said Sir David. 'With the greatest pleasure in the world I shall kill you all.'

'Naturally. But I cannot allow you to purchase Mendax, even at the bargain price of six bullets, without offering you a demonstration of its prodigious abilities. You cannot be expected to buy a pig in a poke, Sir David . . . sight unseen.

That, after all, is why Adrian is with us here.'

Sir David folded his arms and reflected.

'Very well,' he said. 'If it amuses you.'

'Thank you,' Trefusis bent down over the table. 'Now correct me if I am wrong, Stefan, but I believe that all we need do is connect these two radio sets like so . . .'

Adrian forced his eyes away from the gun in Lister's hand and round towards Trefusis behind him. He had prised open the battery compartments of each radio. From one a ribbon of parallel connecting cable now protruded, ending in a plug. As Trefusis pushed this plug into the battery compartment of the other it snapped home with a soft plastic click. He plugged the headphone jack into one of the radios and looked enquiringly towards Stefan, who was shaking his head.

'Not this, it must be the other. Certainly the other.'

'Thank you, my boy.' Trefusis unplugged the headphones from the first radio and attached them to the minijack socket of the second. 'Two hundred and fifty metres, I think?'

'Sure,' said Stefan. 'You will hear noise.'

Trefusis held the headphones up to one ear and turned the tuning wheel on the first radio set. 'Aha!' he said at length.

'Adrian, if you would be so kind . . .'

Adrian took the headset with trembling hands. He looked up at Trefusis, who returned the gaze affectionately.

'Must be done, my dear,' he said. 'I don't believe you will be harmed in any way.'

As soon as the headphones were over his ears, Adrian felt reassured. A gentle hiss filled his head, foregrounded by brighter, sharper little sounds that were like an aural equivalent of spots in front of the eyes. It