Joe shook his head.

‘I have. Chills you to the bone. But I can tell you this – I’d rather outface a cobra than Giles Prentice.’

Andrew voiced the thought they were each turning over. ‘It took some courage to appear last night and meet him again after all these years. Especially when you knew you were about to ask if he would kindly allow you to relieve him of his only daughter.’

‘Courage?’ said Dickie. ‘I don’t know about courage. Awkward, perhaps, but for me not more than that. After all, I’m not the beardless, unattached youth I was in those days. I’ve been on the frontier off and on for ten years. You might say I’m, to an extent, the same type as Prentice. And I knew what I wanted.’

Nancy looked from Dickie to Joe and back again. ‘There are things you should know, Dickie,’ she said. ‘Tell him, Joe. He has to be told.’

‘Do you know why I’m here in Panikhat, Dickie?’ Joe asked.

‘Of course. Nancy was telling me you’re on secondment from the Met and she shanghaied you over here to look into the murder of her friend Peggy… Peggy Somersham.’

‘I’m enquiring into the murders of four women and their names are Carmichael, Forbes, Simms-Warburton and Somersham…’

Dickie leapt to his feet. ‘Christ!’ he said. ‘The mess dinner! On the night of the fire! Are you telling me that each of those men has lost his wife? That she’s been murdered? Can you be certain?’

‘Naurung and I have looked into each death and we are convinced that they were not accidental…’ He turned for confirmation to Naurung who nodded his agreement.

And so, in turn, and with frequent interruptions from Nancy, Joe and Naurung outlined for him the investigations they had carried out and Dickie listened in silence. When their account drew to a close, he muttered, ‘This is the most devilish thing! I won’t say I don’t believe you – I do. I have to. But it is the most appalling thing…’

‘It’s quite incomprehensible. I’ve never heard of anything so evil,’ said Nancy.

‘Haven’t you?’ said Dickie dully. ‘Then you know nothing about Waziristan! It’s badal, Sandilands, isn’t it? It’s badal that we’re dealing with?’

‘I’m afraid that it is. A terrible mixture of revenge and conviction. Our murderer feels he has a God-given right – no, an obligation – to exact revenge. Not only from those who actually killed his wife but from those who failed through their drunken incompetence to save her.’

‘Let’s say it!’ Nancy almost shouted. ‘This clever chap… our murderer… person or persons unknown… It’s Giles Prentice we’re talking about! Giles Prentice killed Peggy and Joan and Sheila and Alicia!’

‘But I don’t understand,’ said Andrew. ‘Why, if he felt so strongly, didn’t he – excuse me, Dickie – just kill off the five officers he considered responsible?’

Dickie gave a bleak smile. ‘His mind doesn’t work in the blunt, straightforward English way that yours or mine or the Commander’s does, Andrew. You say that Dolly suffered from a phobia – a phobia about fire? So – his much-loved wife dies in the worst conceivable way for her – by fire, her nightmare. And he is left for the rest of his life to deal not only with her loss – he’s left with the tormenting thought that her last moments must have been not just agony for her but utter terror. And his revenge – which he is compelled to seek if he considers himself bound by the Pathan code, as you say he does – is to deal out exactly the same treatment to the men he hates. They are not to lose their lives – he wants them to live on in order to suffer, as he’s suffered, a lifetime’s loss and a lifetime’s anguish thinking of the way their wives died.’

Joe watched Dickie finding his way along the track he had so unwillingly taken himself.

‘And, from what we have seen of the bereaved husbands,’ said Nancy, ‘he has been successful. They are each as unhappy as Prentice is himself. And that, I suppose, is what put us completely off his track – we were counting him always as the first victim in a series of victims. The first of five to lose his wife in a hideous way. But Dolly was never part of that. She was the reason for it. She died in March. The other four died in March. Why do I keep saying “died”? – I mean were murdered! And on or around the anniversary of her death. Ritual. It was important to him. He was marking out the time of her death with other deaths.’ She shuddered.

‘And the roses,’ said Joe. ‘Prentice put roses on the graves of the women he’d killed in March each year.’

‘Do you think that could show a more human side to his nature?’ Andrew asked. ‘I find it hard to enter into the mind of such a man but do you suppose that could be his way of – well, apologising – to his innocent victims? His way of acknowledging that they were not his real target, and honouring their memory? Mad, I know – but let’s admit it, that’s what we’re trying to understand – madness.’

‘Excuse me, sahib,’ said Naurung, ‘but I do not believe that there is a more human side to this man. The roses are not a mark of honour and regret as they would be when placed there by a normal person. I think he must be an evil spirit who takes delight in signalling what he has done. The victims may have been innocent and no more than a way of being revenged on their husbands but you will not be forgetting the horror of what he did. He did not need to cut Memsahib Somersham’s wrists to the bone! I think he enjoyed killing these memsahibs. I think he puts roses – blood red roses, remember – on their graves to remind himself of the pleasure he took in killing.’

A chilled silence followed Naurung’s confident statement.

‘This man must be caught,’ said Andrew in anguish. ‘What can you do, Joe? It’s outside everyone’s experience here. What would you do if this were happening in London? What do investigators do when they’re brought face to face with a multiple murderer or an evil spirit – and it’s one and the same as far as I’m concerned.’

Joe had been expecting this question. It was a question he perpetually put to himself and he was not satisfied with the answer. ‘I’m afraid,’ he said slowly, ‘that with all the might of Scotland Yard behind them, to say nothing of contacts with other police forces, what they do in these circumstances is wait.’

‘Wait?’ said Naurung urgently. ‘Wait? Is that all we can do? And do you mean wait for the next tragedy to happen? Wait until our man strikes again?’

‘I don’t like it either,’ said Joe. ‘We could charge him and lay the facts as we know them before him – scare him, if you like, though he’s not a man who scares easily – but with what result? He’d either laugh in our faces or – perhaps worse – disappear. Oh, he could disappear, all right. Like an eel into the mud. And then where would we be? No. I want him where I can see him. And…’ His face suddenly distorted with loathing. ‘… let him overplay his hand and we will have a better chance of taking him. Think for a moment – what evidence have we got that would stand up against him? Andrew – you are the man who would have to deal with this, the ultimate authority in Panikhat. Would you feel able, on the strength of what we have so far, to issue a warrant for his arrest?’

Andrew shook his head.

‘Wait until he strikes again, you say?’ said Dickie. ‘Look, I know what you’re all thinking and I can quite see why no one wants to put the thought into words so I’ll do it myself. I think we all know who the next – and last – victim is, don’t we? According to the grisly schedule he’s set himself, come next March it’s whichever lady has made Dickie Templar the happiest of men.’

‘Oh, no!’ Nancy was horrified. ‘I hadn’t thought of that. But no. Certainly not! You’re not suggesting that Midge, his own daughter…? No. Not even Giles is that mad. But I can quite see why he looked as though he’d seen a ghost when Midge greeted you last night.’

‘No. I think he won’t turn his anger on Midge but we are dealing, as you say, Drummond, either with madness or evil and I’m taking no chances. I’m certainly going to marry her but I won’t marry her until he’s under lock and key. I was thinking out loud, trying to guess how he’ll react now that I’ve ruined his equation. How is he going to deal with an enforced change in his plans? I think he’ll work out his revenge before she is able to marry me. He must know by now that I’m planning to leave for Calcutta and then on to Peshawar to rejoin my regiment the day after tomorrow…’