Crime-scene examiners put their faith in the theory that anyone present at a crime scene took traces away from it, and left traces behind. It was called Locard’s Principle. But, in this case, one half of Locard had been rendered practically worthless by the weather. During the past few hours, blood had been washed away, fingerprints soaked off, shoe marks obliterated. Whatever traces an attacker might have left behind were dissolving into the soil, his unique DNA absorbed into the landscape.

Fry took a step back and felt something soft and squishy slide under her heel. Damn it. If only traces of these bloody sheep disappeared from the landscape so quickly.

For a moment, she gazed across the valley towards Longstone Moor. According to the map, the nearest villages of any size were Birchlow and Eyam. But if they were ever visible from here, she’d chosen the wrong day to enjoy the view. Grey clouds hung so low over the hills that they seemed to be resting on the trees. A dense mist of rain swept across the part of the valley where Eyam was supposed to be.

Fry already hated the sound of Eyam. That was because she’d been corrected about its pronunciation. It was supposed to be said ‘Eem’, they told her – not ‘I-am’, which was the way only tourists pronounced it. Well, sod that. She felt inclined to say it the wrong way for the rest of the day, just to show that she was a tourist, at heart. Yes – deep down, she was just a visitor passing through, taking a break from civilization to study the ways of primitive hill folk.

A gust of wind blew a spatter of rain in her eyes. That was one thing you could say for a city. Any city, anywhere. There was always a building within reach where you could get out of the rain. In the Peak District, the weather would always catch you exposed and vulnerable. It could bake you one minute, and drown you the next. It was like some big conspiracy, nature combining with the remains of ancient lead mines that lurked under your feet to trip you up.

When Fry turned away from the view, she found the crime-scene manager, Wayne Abbott, standing in front of her, as if he’d materialized out of the rain. He was a damp ghost, glistening in his white scene suit as if he was formed of ectoplasm.

‘There doesn’t seem to be much physical evidence in the immediate area around the body,’ he said, when he’d got her attention.

‘I’m not surprised.’

‘And I can’t even see where the approach route might have been. We’ll probably have to do a fingertip search over the whole field.’

‘How many people on the ground would we need for that?’

‘I don’t know. It’s a big field.’

‘Thanks a lot.’

Fry could imagine the arguments about overtime payments and the hours spent frowning over the duty rota. Luckily, she could pass that problem up to her DI, Paul Hitchens.