âBeg pardon, sir?'
âBaucis and Philemon were Ovid's couple to whom the gods gave the gift of growing old together like entwined trees.'
âAh.' Sloan's brow cleared. He should have remembered that the Assistant Chief Constable was a classicist first and a policeman a long way second. âI'm with you, sir. The “Lonely Hearts” columnsâ¦'
âI understand there was no shortage of volunteers for the research,' said the Assistant Chief Constable drily, âbut much good it did 'emâ¦' He paused and then, scholar that he was, added punctiliously, âIn that respect anyway.'
âRadio transmitter?' suggested Sloan.
âFirst thing they looked for.' The Assistant Chief Constable wrinkled his nose. âOld hat anyway, these days.'
âInternet?' Sloan made another effort to come into the twenty-first century.
The Assistant Chief Constable said âThey're quite sure that Mata Hari â sorry, but that's how they will refer to their female suspect â doesn't have access to it.'
âDon't they have Internet Cafes now, sir?'
The Assistant Chief Constable said gloomily, âThey've been tailing her for weeks ⦠Mata Hari, indeed. You'd have thought they'd have been a bit more original, wouldn't you?'
âAnd her opposite number?'
âAlways male so far.'
âHow do they refer to him?'
âYou're not going to like this either, Sloan.'
âSir?'
âThey're calling him George.'
âThey do have a precedent,' Sloan conceded stiffly. The boundaries between spy, traitor, defector and double agent were something that in the ordinary way he didn't have to explore. But, like those between crime and sin, they were as intertwined as that couple with the odd names whom the Assistant Chief Constable had just mentioned.
âAnd they've seen him once â but so briefly that it didn't help much.' The Assistant Chief Constable waved a memo in the air. âThey got a camera shot of his back, here in Berebury, that's all.'
âBut they exchanged something?' Detective Inspector Sloan, like most policemen, remained ambivalent in his attitude to criminologists, but Loccard's famous exchange principle that all contacts left traces on both objects, inanimate and otherwise, had been ground into him when a young constable as firmly as the twelve times table.
âHe came up behind her and took something out of her hand without speaking or looking at her, and then walked on without a pause or looking back either.'
âSo he knew where she would be and when,' concluded Sloan without difficulty.
âAnd conversely, presumably she knew when and where he would come,' said the Assistant Chief Constable, âbecause I gather she didn't even look up as he lifted whatever she had for him ⦠She just went on strolling along.'
âBut what nobody knows is exactly how they made the arrangements ⦠Is that it, sir?'
âThe problem in a nutshell, Sloan.'
âAnd,' pointed out the Detective Inspector, âthey think that George was probably aware that she â er â Mata Hari, that is â was being kept under close observation.'
The other man nodded. âThat's right. Because by approaching her from behind, he didn't let our people see his face.' He straightened up. âExcept we must remember that they're not really our people, Sloan.'
âNo, sir.' That was the trouble with the secret services. No one was ever really sure whose people they were â¦
âHow they think we can help, I don't know.' The Assistant Chief Constable scratched his chin. âI can't see the point of waiting by the spot where the exchange happened to see if it happens again, can you?'
âNo,' said Sloan, adding vigorously, âand in any case, sir, if that's what these types want, I can see no reason why they shouldn't do the surveillance themselves. It's the force who are short of man power.'
âQuite, quite,' said the Assistant Chief Constable pacifically. âOn the other hand, it would be good to get them off our backs so that we could all return to proper policing.'
âSo it therefore follows,' said Sloan, in the manner of a schoolboy proving a theorem, âif the secret services are so sure that Mata Hari and this character whom they call George haven't been in touch by any other means, that there must have been a sign or a plan, separately visible to them both, bringing them together in some other way.'
âWe're all agreed on that, Sloan, but their people have looked everywhere and can't find one.' The Assistant Chief Constable squinted modestly down his aquiline nose. âThat's why they've come to us, and we don't want to let them down, do we?'
âSo when and where did all this happen, sir?' enquired Sloan stolidly. The larger question of whether or not the police wanted to help the secret services, he left unanswered.
The Assistant Chief Constable waved the message sheet in his hand. âOutside St Aidan's Church at ten o'clock on Tuesday morning last week ⦠and I may say they mounted a watch there too on Tuesday this week.'
âNo joy?'
âNot there. All the action was over at St Barnabas's at twelve noon instead.'
âThe other side of town.'
âThat's what's irking them, Sloan. As you know, Berebury's by no means short of churches. Comes of being an old medieval settlement, I suppose.'
âAnd their next encounter?'
âJust in front of St Ninian's at nine yesterday morning.'
âThat's my mother's church,' remarked Sloan absently, his mind elsewhere. âI suppose they could be going through all the churches in Berebury alphabetically. That would be easy enough for anyone to arrange.'
âThey'd thought of that. You're forgetting St Catherine's.'
âSo I am, sir.'
Detective Inspector Sloan had been doing his best to forget the ultra-modern St Catherine's Church ever since it had reared its ugly metal spire in the middle of the old market town. Even worse than the tower was the series of shiny spikes where a traditional church would have had flying buttresses.
âBut it was the rendezvous at St Peter's at nine this morning that got the secret service boys really wound up, Sloan. You know, that old church down by the riverside that isn't used any moreâ¦'
âRedundant,' said Sloan pithily, âalthough if you ask me there's more sin down in that part of the town than anywhere else.'
âQuite so. Wellâ¦'
âIf ever a patch needed a church,' averred Sloan feelingly, âit's the Water Lane district.'
âPerhaps.' The Assistant Chief Constable frowned. âThey tell me Mata Hari and someone elseâ¦'
âWho wasn't George?'
âA new face â or, rather, a new back. They did their exchange dead on the first stroke of the church clock.' He scratched his chin. âFrom all accounts it went like clockwork too, which is more than it did one day last weekâ¦'
Detective Inspector Sloan looked up. If there was one thing every police officer found worth investigating it was a deviation from the norm. âWhat happened last week?'
âApparently, Mata Hari was outside St Olave's all that morning, but no George. It was raining and she got soaked, but he never showed and neither did anyone else.'
âAnd next time?'
âYour guess is as good as mine, Sloan.'
âActually, sir, the time and place might be a guess,' said the Detective Inspector, âbut, if past performance is anything to go by, the meeting will be outside a church.'
âYe-es, I suppose that's so.'
âAnd on the hour.'
âThat too, Sloan, now you come to put it like that.'
âOn past performance alphabetically, saving St Catherine's â' Sloan knew what it was those high spikes there reminded him of, so many mantraps â âit should be St Thomas'sâ¦'
âMata Hari and her friends do seem to need a church, all right,' agreed the Assistant Chief Constable pensively, âwhich is funny, when you think about it.'
âThey seem to need the outside of one, sir, anyway,' amended Sloan.
âAnd something by way of a clock.'
âSt Ninian's doesn't have one,' said Sloan, almost without thinking. His mother's arrival there went by the sound of the church bells. All he ever had to do was to get her to the church door on time. She was always telling him it was an interesting church doorway, but he couldn't for the moment remember why.
âRight.'
âAnd it can't be the church bells,' said Sloan knowledgeably, âbecause St Olave's doesn't have a ring any more.'
âNowhere near enough young bell-ringers coming forward these days, Sloan. Too much like hard work â pulling a rope and counting.'
Sloan paused. âThere's one more thing, sirâ¦'
âWhat's that?'
âAll these meetings you've told me about have been in the morning.'
âSo they have, Sloan.' He tapped his pen on his desk. âNow, why should that have been, I wonder?'
âPerhaps this precious pair need daylight to come together, sir.'
âGood point, Sloan.' The Assistant Chief Constable leaned back in his chair. âBut not for recognitionâ¦'
âThe recognition would seem to be a bit one-sided, sir. That's if Mata Hari only has something lifted out of her hand from behind.'
âTrue, but â er â George must know whose hand from which to do his taking.'
Sloan wrinkled his brow. âOn the other hand, she may not need to know who's coming up behind her to collect the â er â dibs. It might even be safer that way.' Dibs wasn't a word he relished using. Like the name Mata Hari, it smacked of an earlier, more melodramatic era.
âPerhaps, Sloan, there's something else they needâ¦'
âFine weather?'
The Assistant Chief Constable nodded. âCould be, Sloan. Now what sign, I wonder, could there be which doesn't work in the rain.'
âThere must be something,' said Detective Inspector Sloan. There was a pair of tribes in Borneo he'd read about which only went to war in daylight â that was because they were frightened of the dark â and in fine weather because the rain spoiled their martial feather head-dresses. âThey'll have a reason for using the front of all those churches ⦠bound to.'
âSomething which needs the sun perhaps?' The Assistant Chief Constable frowned. âThere can't be that number of handy sundials in the middle of Berebury, though.'
âAnd the sundial only tells the time, sir. It wouldn't tell them when to meet.' The rim of the sundial in the municipal park said something sententious about its only recording the sunny hours, but he did not say this. âThese meetings, sir, that the secret service said were all outside churchesâ¦'
âYes?'
âDid they mean outside the church doors?'
âI'm not sure if they were as precise as that, Sloan.' The Assistant Chief Constable peered at the notes on his desk. âWhy?'
âChurches usually face eastâ¦'
âAgreed. So?'
âSo their entrance doors are usually on the south and north sides.'
âGranted.'
âAlthough sometimes, of course,' went on Sloan, âthey have a west door tooâ¦'
The lean, intelligent face of the Assistant Chief Constable took on a look of close interest. âAre you telling me, Sloan, that none of the action will have been on the north side of any of these churches?'
âIf that is the case, then it might perhaps indicate that we are thinking along the right lines, that's all, sir.'
A little smile played along the other man's lips. âAm I then right in thinking that an extension of this proposition would be that our two suspects wouldn't have met on the west side of any of the churches either?'
âYes, sir. Not if the meetings all took place in the morning, sir, which you said they did. The west side only gets the afternoon and evening sun and the north side none at all.'
âI did say they were in the mornings,' said the Assistant Chief Constable. âAll of 'em.'
âAnd if their signal needs the sun, that would explain why the meeting outside St Olave's was fouled up by the rain.' Like the warriors of Borneo, Mata Hari's contacts too would have had their reasons for not liking bad weather.
The Assistant Chief Constable stroked his chin. âGo on.'
âBut if they're working their way round the Berebury churches alphabetically, it wouldn't explain why they left St Catherine's out,' said Sloan. He'd learned long ago not to bend facts to suit a theory. Defence counsel always found a chink in faulty armour.
âThey didn't leave St Peter's out though,' remarked the Assistant Chief Constable, âjust because it's not being used now.'
âSo, sir, it wasn't something hidden in the church notices in the porchesâ¦' His own mother, now, was always able to draw accurate conclusions from innocent-looking flower rotas.
âThat follows, Sloan. St Peter's in, St Catherine's outâ¦' He sat back and regarded his notes with a pensive air. âDoesn't make sense, does it? We're like those chaps looking for a sign from the East.'
âThe Three Wise Menâ¦' There was something beginning to niggle at the back of Sloan's mind now.
âWell, it looks as if we two wise men can't help our â shall we say our “confrères”? â with the answer to their little problem after all.'
The niggle at the back of Sloan's mind was turning into a positive irritant.
âPity, that, Sloan,' murmured the Assistant Chief Constable wistfully. âI should have liked the force to have come up withâ¦'
âSt Catherine's Church is post-war,' Sloan said suddenly.
âThe 1960s architects have a lot to answer for,' observed the classicist urbanely.
âBut the other churches are all old and Anglican,' said Sloan.
âI don't know that that gets us very far, Sloanâ¦'