He smiled at the road as he started the engine. “Which attracts the most birds, though?”

Uncomfortable, she arranged her narrow black skirt to hide her fat legs. “So,” she said, “how long have you been married?”

He tutted sullenly and looked at her. “You don’t mess about, do you?”

She shrugged. “I’m just asking.”

Burns flicked on the indicator and checked the empty street, looking over his shoulder, avoiding the straight answer. “Why? Are you married?”

“Burns, if I was married I’d wear my wedding ring all the time and everyone would know.”

They drove on in a heavy rankling silence for a few minutes, negotiating their way out of the deserted narrow valleys between the buildings. The pine air freshener swung rhythmically from the mirror, the cellophane envelope hanging off it like a pair of trousers dropped to the knees. She should have taken the train.

They hit the main thoroughfare and the Friday-night traffic. Closing-time drunks littered the streets, staggering out in front of the traffic and causing trouble among the bus stop queues. A woman wearing a flying suit and gold belt with strappy high heels swung her handbag playfully at her boyfriend. Paddy saw short rara skirts and ski pants and nipped waists. It was a bad time for big girls. She suddenly thought of Vhari Burnett and remembered that she had to get Burns talking if she wanted to find out who Lafferty was.

“The town’s been quieter in the past month or so,” she told the window. “Or maybe it just seems that way.”

“It is quieter. Do you want to know why?”

“Go on, then, why?”

“I’ll show you.” Burns swung the car in a sharp U-turn, doubling back through the Trongate in a highly illegal maneuver and cutting through a red light. He drove onto the Gorbals, taking the Rutherglen Road and an off-ramp to St. Theresa’s Chapel next to the high-rises. For a moment Paddy thought it was a bad idea to be alone with this man; there was a frightening energy at his core. If he did anything to her she wouldn’t be able to go to the police: he was the police.

Burns pulled over and stopped the engine, sliding down in his seat.

“Watch,” he said.

They were across the road from the shopping center, in a tall, wide alleyway straddled by massive stilts supporting the high flats above it. The breadth of the building was picked out in wide stripes of gray and black. The underbelly of the flats was a stained concrete slab. Between the stilts was a row of squat, shuttered shops.

It was a familiar scene to Paddy. The next-door police station was a nightly stop for her and Billy. It was usually the last stop before the death burger van at two thirty and the lit blue POLICE sign hanging over the door made her feel hungry and a little bit excited at the prospect of a cheeseburger. The incidents in the station were usually drink-related family fights.

“Why are we here?”

“Just watch.”

“Are you going to tell me about Lafferty?”

“Seriously. Watch.” He pointed at the block of high-rises looming over them. A lot of the windows were open, she noticed. An unusual number for February. She’d heard the heating was sometimes controlled centrally in the older council blocks and they could easily overheat if the system went berserk. But not all the windows were open.

At first she thought it was something falling slowly from a window on the third floor, but it was a bit of paper being lowered softly on a string. When it reached five feet off the ground, a tiny shadow figure materialized from behind one of the stilts, tugged the paper free, and melted away again. The string hung there, billowing gently until another young man ducked out and tied a note to the end, watching as it rose above his head. Farther down the block another weighted string was lowered from a first-floor window and someone else stepped out of the shadows, caught it, and tied a paper to it.

“What’s going on?” whispered Paddy.

“That’s money going up, heroin coming down. It’s the reason the town’s so quiet. The people used to be in the town on Friday nights having knife fights. Now they’re around one another’s houses, jagging up and watching telly.”

She thought about the traces of cocaine Sullivan had found on her note, currently sitting in PC McDaid’s cupboard. “What about cocaine? Do they sell that here?”

“No, that’s the other end of the scale. Rich people. They never really catch those ones; they’re too well connected. See, we can’t search the flats without a warrant and the tenants won’t open the door unless they know who it is. This way they can deal without opening their front doors.” Burns paused. “I asked around about Lafferty, by the way. He’s up to his elbows in all of this.”

“Really?”

“Yeah.” He pointed to the shadows and the strings. “He’s a known face but no one knows which outfit he’s working for and there aren’t any charges outstanding against him.”

“Did Vhari Burnett ever prosecute him?”

“The Bearsden Bird?”

She didn’t want to give Sullivan’s lead away and half-wished she hadn’t mentioned it but nodded softly.

“Not that I know of.” Burns stroked the leather steering wheel. “Someone else was asking about that. Have you heard something we should know about?”

“No, name just keeps coming up, that’s all.” Paddy looked and found his eyes drinking in her bare neck and her mouth. He didn’t stop when he saw the coldness on her face, either, but smiled ruefully, as if he knew he’d never touch her and regretted it.

He turned the key, starting the engine and startling the buyers so that, black on black, they scattered like a flock of bats under the black belly of the building.

Kate sat at the table in the small green kitchen, frozen with terror, repeating Knox’s name under her breath in a mantra, trying to feel safe. She couldn’t bring herself to turn around and look back at the man peering curiously in through the window. She could hear his hand brushing dirt from the small pane above the sink, feet crunching on the dead plants below the window as he swayed from foot to foot. He must have been as cold as she was.

And it was cold in the house. She had found logs under the back porch and coal in the cellar but didn’t dare build a fire. She didn’t know who was watching. Luckily she had found a wardrobe full of woolen sweaters and trousers in the back bedroom and now wore three layers, none of which suited her. She didn’t care. She had turned all the mirrors to the wall. She couldn’t bear to look at herself.

The light hit the table at an angle and she could see long, tongue-shaped trails through the dust. She licked it last night, trying to be frugal and not waste a spilled drop because the envelopes seemed to be emptying by themselves. She had mixed the contents of one of them with the milk powder but it just meant she had to get more into herself to achieve the same sense of comfort and it was hard because her nose was so sore and raw. She had to hold the tip of it out from her face to sniff. The second envelope wasn’t mixed with milk but the contents were still evaporating. It seemed inconceivable that she was taking it all. There was no one else in the house, even though she had been convinced for a period last night that there was, so it had to be her.

Kate imagined the face at the window had blurred features because of the soil stuck to his pale skin. There would be a deep, bloody, black hole where his eye should have been. His fingernail scratched slowly down the window, a high-pitched shriek, running down her spine vertebra by vertebra.

Kate covered her eyes and tried to breathe. It didn’t matter which room she went into, where she sat in the house, the man from down the hill would be behind her somewhere, singing sometimes, a vague tune in a low growl, trying to get her attention. Every spare corner of her head was filled with him; every time she shut her eyes she recalled the sight of him, her fingers tingling with sensation of a pencil through paper.