‘Lindsay was proud of her kitchen,’ said Mrs Lowther. ‘It’s not six months since she had new units put in, and a canopy cooker hood with a double extractor. It was immaculate.’

‘Yes, I’ve seen it,’ said Fry. ‘I wonder, during the past few weeks, did Lindsay or Brian mention anyone hanging around near their house, or someone suspicious coming to the door?’

‘No, not at all.’

Before much longer, Fry had exhausted her questions. To be honest, she was glad to get out of the conservatory and away from the plants.

‘What sort of business do you run, sir?’ she asked.

‘I own a very successful export company. We deal mostly in machine tools, which we sell all around the world. We’ve been planning a shift towards computer technology, but that’s not our core business right now.’

Not a wholesale florist’s, then. She’d just wondered. As they went back through the house, she saw begonias and chrysanthemums in the living room. And there were foliage plants everywhere: monstera, yucca, palms. It was like the hothouse at Kew in here.

‘Oh, you have a visitor,’ she said when they reached the door.

A man was coming up the path towards the Lowthers’ door. He was taking his time, pausing to smile sadly at the stone angel, stepping carefully on the flattened tortoises. He looked to be in his mid-twenties, smooth faced and wearing an overcoat of a kind that you didn’t see very often these days. Fry wondered if he was a journalist.

‘Oh, it’s John,’ said Mr Lowther. ‘Our son.’

‘Does he live here?’

‘No, he has his own apartment, in Matlock. Poor John, he’s very upset – he and Lindsay were so close.’

‘Is he older than your daughter?’

‘No, two years younger.’

John Lowther looked at Fry and Murfin curiously as they met on the porch step.

‘These people are the police, John,’ said his father. ‘They’re here about Lindsay and the boys.’

‘We were close. Did they tell you?’

‘Your parents? Yes, they did.’

‘I’m shut up completely.’

‘I’m sorry?’

But Lowther was looking at Gavin Murfin. ‘I like your tie.’

Murfin looked aghast at getting a compliment. ‘Er, thanks.’

‘Are you all right, Mr Lowther? I know it must be a very difficult time for you.’

His eyes travelled back towards her, but failed to focus. ‘Pardon? What did you say?’

‘Have you thought of seeing your doctor?’

Lowther laughed. ‘I don’t see my doctor, because he’s not here.’

He went into the house, where his mother greeted him with a sob and a hug. Fry and Murfin walked back to the car. For a few moments, neither of them spoke. Then Fry started the engine and drove slowly back down the road.

‘A bit of a teacake,’ said Murfin.

‘What?’ said Fry, thinking he was talking about food, as usual.

‘That Lowther bloke. He’s a bit of a teacake.’