Harper looked around him. ‘In China?’

‘There aren’t too many barbed-wire manufacturers importing to the US, so we’re down to the last one. But I don’t know that the number will give us anything. Even if we find where it came from, we might not see where it went to.’

Harper put his hand on the shoulder of one of the guys. ‘Anything?’

Detective William Hong nodded. ‘We think we’ve got the manufacturer. They’re tracing that batch number, might be able to tell us where it was sent.’

‘Call me the second you know,’ said Harper.

He walked back into the investigation room and sat down by Denise, on an old plastic chair. ‘How’s it been?’ he asked.

‘Okay.’

‘No progress?’

‘Not yet. I’m just absorbing all the details. It’s not nice.’

‘No,’ said Harper.

‘There’s nothing on the bullet. You anywhere with that?’

‘They can’t ID the bullet. It’s so mangled. It’s just a lump of metal. I’m going to get it looked at. There’s something more to it. Why, what are you thinking?’

‘I need to know what kind of gun he used. It might tell us something.’

‘Like what?’

‘Confidence with a gun, military background, who knows.’

‘They say it was a 9mm bullet.’

Denise nodded. ‘I went through the sequence of events, the witness statements, the confession letters, the forensic details, the autopsy protocol. Then I went through it all again.’

‘And?’

‘He’s not a political animal. He’s a sociopath. I agree with you — I think there’s something else, too. Something…’

William Hong emerged from the interview room and called across. ‘Harper, we’ve got it. This consignment was headed for Washington. Then headed for a commercial supplier.’

Harper turned. ‘And where did they send it?’

‘It’s been a ride. The commercial supplier sent it to a local state wholesaler. They found the order. We know the shop this spool was bought from.’

Eddie Kasper took the faxed copy of the import order. Chinese letters across the top of the paper. ‘If he’s a right-wing pro-America freak, Harper, do you think he knew he was buying Chinese barbed wire?’

Harper felt the release in the tension with the breakthrough. ‘We got to get up there, have a look at the layout. See if they have CCTV. But first, I’ve got to tell Lafayette that we have a lead. It’ll buy us a few more hours.’

In the background, Denise looked through Harper’s murder book. A sketch of a wind-ruffled falcon graced one page. She turned over and saw the strange sketch of dots and scratches that they’d seen at the morgue.

‘Sorry, Denise, you were about to say something?’

‘No, nothing really. Hey, you thought any more about this?’ she asked.

‘No, why?’

‘Another strange sense I get. I think I half recognize these marks, but I don’t know why or how.’

‘Well, give it time — it’ll come.’

Levene drifted into thought. An image from her childhood emerged deep from within her memory, but it was so vague she couldn’t capture it. Perhaps it was some picturebook her father had showed her. If so, it was before he went to prison, when she was nine years old. She didn’t remember the book. She remembered black and white photographs, her father not speaking, just turning the pages in silence, then when she turned, seeing her father’s tears. His large leathery hand stroked her hair. She could taste his pipe smoke in her throat and hear the accent that never left him.

Her hand reached out and moved across the scratches. Something appeared, a pattern of some sort, but she couldn’t read it. Not yet.

Lock-Up, Bedford-Stuyvesant

March 8, 1.05 p.m.

He parked his old sedan three streets away, put on an overcoat and baseball cap, then walked the rest of the way, past derelict housing blocks and shuttered shops scrawled with graffiti.

He reached the razor-wire fence and pushed through a small gap at the side into a grassy alley between two buildings. He walked through to a wide patch of scrubland that was once the backyard of a clothing business that had long ago closed down.

Several stray dogs appeared from each corner of the square, eager-eyed and barking. The man took out his bag of meat, which consisted of cheap scraps that he collected from the meat market. The dogs ran towards him, yapping and jumping, saliva dripping and swinging from their jowls. There were about sixteen strays of all types. He took out handfuls of fatty meat and tossed them around the yard.

The dogs were his homemade security force. He’d started to feed them a few months back, after he’d found the abandoned garage on one of his tours of duty. He knew that a lock-up without additional security would not last in that part of Brooklyn, so he’d spent the time trying to get the dogs to see the garage as their place and defend it. No one would try to get past a pack of wild dogs. Not even gangbangers.

He got to the door of the garage and unlocked each of the three padlocks. The dogs surrounded him, yelping and circling tight around his legs.

He pushed open the door and flicked on the light. The dogs ran in all around him and their barking filled the room and echoed against the tin roof. He threw more meat down and filled three bowls with water.

He sat in a battered armchair and started feeding some of them by hand. They fed furiously, angrily, gulping down the lumps of fat and gristle with excited glee. They were a pack, a team, but underneath that organization, they were out for themselves. If one of them got injured, they’d tear the animal to shreds.

The man stood up and went back to the door. He threw the remaining lumps of meat into the yard and watched them tear out of the room. He slammed the door shut and breathed excitedly. Around the room, there were several scaffolding poles that leaned against the walls, and bags of sand and cement piled in corners. Outside the garage door stood a large pallet of bricks. He’d brought about four dozen bricks into the room and had started to mark out two internal walls along the floor, coming out from the back wall. He’d been planning on a building project for a while now, but was waiting for the right kind of girl. It was going to be a room within a room, a very special room. One he’d dreamed of his whole life.

The large brick garage had been empty for years. A piece of derelict real estate in a part of town no one wanted to live in. He had a new door fixed, new bolts and padlocks. He’d bricked up the one small window. Across the garage was a second door which once upon a time housed a bathroom. The cistern and sink had been smashed. He’d cleared the room out and sealed it up as best he could.

He took a metal plate from a shelf next to the door. Removed a piece of dry bread and a small piece of cheese from a tin, and put them on the plate. He then poured some water from a bottle into a metal cup. He placed both at the bottom of the door where there was a hinged flap.

He stood at the door, knocked twice and pulled back a small slot that he’d cut in the wood. He stooped and stared into the room at the bundle lying on the floor.

‘Stand,’ he ordered. The prisoner did as he requested. He did not listen to her when she spoke or cried. He had taught himself to believe it was another language. The language of lies. She stood and turned her back to the door. He moved his hands through the slot and unbuckled her wrists and then her mouth restraint. Then he shut the slot and pushed the metal plate through the hinged flap with his foot.

A few seconds later, a bedpan was pushed out. He picked it up, took it outside the door and threw the contents on the ground. The dogs ran at the sewage as if it were more food.

As she was eating, he started to undress and place his clothes in a wooden trunk. From the trunk he took out another set of clothes. He was going hunting again. He dressed in his hunting uniform, slowly adding each item of clothing that he’d carefully sourced over the years. He pressed his hair flat to his head and looked at himself in a jarred fragment of mirror. His eyes flinched at the sight of his own dark hair and olive skin. He moved his gaze quickly to the uniform to stem the self-loathing that flooded within him at the sight of his own features. He shifted nervously from foot to foot, letting the whole effect grow in his mind and now feeling excited by the transformation.