The last thing Marie saw before her eyelids closed was a thin, dark shape that sliced the skyline on the hill. It seemed to cut into the grey belly of cloud like the blade of a razor. Her mind clutched at the thought of it as she drew together the dregs of her willpower to fight the pain. In the end, that crumbling memorial in the middle of the snowfield had not been the place she was destined to die. It was for men who had lived and died together. It was quite a different thing to die alone.

A series of out-of-focus slides seemed to flicker across a screen in her mind. They were gone too quickly for her to puzzle out their significance, though she knew they were connected to her life. Each one had vague figures that swung and jerked against a dark background. Each brought with it a momentary burst of smells and tastes and sounds, a kaleidoscope of sensations that dragged all the emotions out of her and ripped them away before she could recognize what they were.

There was a voice, too – the voice of a real, remembered person, not a phantom of the snow. 'We'll be together,' it said. 'Are you happy?' it said.

And then there were just three final words. They came amid an eruption of intolerable pain, the smell of dirty sheets and the sound of scuttling feet above her head. The same voice, but not the same.

'It's too late,' it said.

And Marie Tennent would never see the dawn.

* * * *

Ben Cooper entered the café. It was full of customers, who sat half-asleep over their mugs of tea, their brains kept barely alert by the tendrils of steam they breathed in through their noses. As Cooper stamped his feet to shake off the snow, a few faces turned away from him, as usual.

One man sat alone near the counter. He was wearing a dark overcoat and a Manchester United hat. Cooper moved up behind him until he was close enough to recognize the smell. The man had an odour about him that identified him against the background of bacon and fried eggs, even among the wet-dog smells from sodden coats and muddy floor tiles.

Cooper moved slightly so that he could see the man's face.

'Morning, Eddie,' he said.

The customer nodded cautiously. It was the best that Cooper could expect, in the circumstances. Eddie Kemp was well known to most of the officers at E Division headquarters. He had visited the custody suite and interview rooms there many times in the past. These days, though, he visited other parts of the West Street station, too, if only from the outside. Eddie Kemp had started a window-cleaning business.

'Bad weather for business, isn't it?' said Cooper.

'Bloody awful. My chamois leathers are frozen solid. Like dried-up cow pats, they are.'

Kemp didn't look too good today. His eyes were red and tired, as if he'd been up all night. The Starlight opened at five o'clock for the postal workers starting their shift at the sorting office, for the bus drivers and railway staff, and even a few police officers. Kemp looked as though he'd been here since the doors opened that morning.