They walked out into the cold and sat in the car while it warmed up. ‘It’s possible,’ Banks said. ‘But we checked the entire house for blood-stained clothing and found nothing. There were no pieces of charred cloth in the fire either. I’m not saying she couldn’t have found a way, just that I haven’t figured it out yet. We seem to have too many suspects. Too many motives and opportunities.’ He slammed the wheel with the flat of his hand. ‘I still keep coming back to that damn record, though. Why? Why would somebody put a record on and leave it to repeat?’

‘Perhaps Caroline herself put it on.’

‘She hated classical music. She may have opened it, but I doubt she’d have played it.’

‘But if Veronica had come back…?’

‘If it happened the way you suggest, and she’d seen Patsy leaving, she’d have been on the warpath. She’d hardly have stopped to listen to her Christmas present first, especially on December twenty-second. No. It doesn’t make sense.’ He spoke quietly, almost to himself. ‘But the music is for the burial of a very small child. Caroline’s child could be anything up to nine or ten by now. Maybe if I can track the kid down…’

‘That’s if whoever put the record on knew what it was and knew what it meant.’

‘Oh, the killer knew all right, I’m sure of that.’

‘Are you sure you’re not making too much of it, sir?’

‘I might be. But you’ve got to admit it’s a puzzle.’

‘Talking about records, sir…’

‘Yes?’

‘Do you think you could play something different on the way back? I don’t mean to be rude, sir, but that music you were playing on the way over was so boring it nearly put me to sleep.’

Banks laughed and drove off. ‘Your wish is my command.’

‘Well, well, well, if it isn’t Mr Banks. It’s a rare treat seeing you in here.’

‘Sorry, Vicar. There’s something about my job that disinclines me to believe in a benevolent deity.’

‘You catch your criminals sometimes, don’t you?’

‘Yes.’

‘Well, there you are. The Lord works in mysterious ways.’

The Reverend Piers Catcott’s eyes twinkled. He was a slight man in his late forties, who looked more like an accountant than a minister: spectacles, thinning silver hair, slight stoop and an anaemic, well-scrubbed complexion. He was also, Banks had discovered from their discussions and arguments over pints in the Queen’s Arms, an extraordinarily erudite and intelligent man. Pity, Banks thought, about the superstition he deemed fit to embrace.

‘Still,’ Catcott said, ‘I don’t think you made the supreme sacrifice of entering this hallowed place just to argue theology, did you?’

Banks smiled. ‘That’s right, Vicar. We can do that much better in the pub. No, it’s just some background information I want. Knowledge, rather. I want to pick your brains.’

‘Oh dear, I should think that’ll be much more comfortable sitting down. That is if you’ve no objection to taking a pew. Or we could go into the vestry?’

‘A pew’ll do fine,’ Banks said, ‘as long as you don’t expect me to kneel.’

The small church was dim and cool. Weak evening sunlight filtered through the stained-glass windows. Banks had seen more of it from the outside than in, though he had been in once or twice to look at the Celtic cross and stone font. The pews creaked as they sat down.

‘What’s the liturgy?’ Banks asked.

‘Oh, come on, Mr Banks,’ Catcott said with a thin-lipped smile. ‘Surely even a heathen like yourself knows that?’

‘Humour me.’

Catcott put a pale, slender forefinger to his lips. ‘Very well. The liturgy. The word is often used to refer to the Book of Common Prayer, of course, but the meaning goes back a long time beyond that, a long time. Essentially, it’s simply the order of services in the church. As even you probably know, we have different services at different times of the year – Christmas, Easter, Harvest Festival and the like. And, you might remember from your misspent youth, we sing different hymns and have different lessons according to the nature of the service. Do you follow so far?’

Banks nodded.

‘There is a liturgical calendar to cover the year’s worship Advent, the fourth Sunday before Christmas, came first, then Christmas itself, ending with Epiphany, the sixth of January, or twelfth night, to you. Then we have the Pre-Lenten season, followed by Lent, when you’re supposed to give up bad habits – ‘ here he paused and cast a narrow-eyed look at Banks – ‘and the last three are Eastertide, Pentecost and Trinity. But what on earth do you want to know all this for? Surely you’re not thinking of-’

‘No, I’m not. And believe me, Vicar, you’d be better off not knowing. I’m particularly interested in the music that goes along with these services.’

‘Liturgical music? Well, that’s a slightly different matter. It’s very complicated. Goes back to Gregorian chants. But basically, each part of the year has its own biblical texts, and early composers set these to music. People still do it, of course – Vaughan Williams, Finzi and Britten did quite a bit – but it’s rarely part of a normal church service these days. What you’re probably talking about are biblical texts, or parts of texts, set to music. Actually, most of them were abolished in 1563.’

‘What kind of music are you talking about?’

‘All kinds, right from early polyphonic motets. A composer would take a text, perhaps a psalm, and set it to music. In Latin, of course.’

‘Like a Gloria or a Magnificat?’

‘Actually, the Gloria is part of the Mass, which has its own liturgy. I told you, it can get quite complicated.’

Banks remembered the section titles from his tapes of masses and requiems: Kyrie Eleison, Agnus Dei, Credo. ‘I think I’m getting the idea,’ he said. ‘What about Laudate pueri?’

‘Ah, yes, “Laudate pueri, Dominum…” It means ‘Praise the Lord, ye children.” That was a popular liturgical work. Based on Psalm 112, if my memory serves me right.’

‘Do you know Vivaldi’s settings?’

‘Indeed I do. Magnificent.’

‘It says in the notes to my tape that the piece may have been used as part of the burial service for a small child. Is that right?’

Catcott rubbed his smooth chin. ‘That would make sense, yes.’

‘Would that be fairly common knowledge?’

‘Well, you knew it, didn’t you? I’d say any reasonably well-educated person might have a chance of knowing.’

‘Would someone like Claude Ivers know?’

‘Ivers? Of course. I remember reading an article about him in Gramophone and he’s extremely knowledgeable about sacred music. Pity he doesn’t see fit to write any himself instead of that monotonous stuff he churns out.’

Banks smiled. Catcott had sown the seeds of another Queen’s Arms argument, but there was no time to pursue the point now.

‘Thank you, Vicar.’ Banks stood up and shook hands with Catcott, then headed out. His footsteps echoed on the cold stone. Just before he got to the door he heard the vicar call out from behind him, ‘The collection box for the restoration fund is to your right.’

Banks felt in his pocket for a pound, dropped it in the box and left.