There didn’t seem to be much to steal here, though perhaps people would find ways to break into the factory for other purposes. It was inevitable with any abandoned building, especially in a spot like this where you wouldn’t be overlooked.

Cooper saw a small door standing open at the back of the main building. It was half-hidden under the mass of pipes and a steel platform supporting the hoods of a massive cooling system. Above it metal steps ran up the wall to a set of doors on the first floor. He watched and listened, but saw no movement and heard no noise from within the factory.

Then there was a metallic reverberation, a boom like a heavy object dropped on one of the empty tanks. But it came from behind him, not from the factory.

His heart thumping, Cooper whirled round. On top of a tank he glimpsed a figure just disappearing as someone descended a ladder. Where the person had been standing was a perfect vantage point to observe Cooper’s arrival. If it hadn’t been for that stray boot against the side of the tank, he might never have known anyone was there.

He cursed himself for not taking a more wary approach. But what had he been expecting when he came to Hartington, if not someone hiding out here? It was almost as if he’d deliberately given them a warning. And allowed them to escape.

But whoever it was, they hadn’t gone. Somehow they’d slipped round the back of one of the smaller sheds and reached the door into the main building, which had now closed behind them.

Cooper shivered and looked up at the sky. The moon was so bright it had created a ring of colours through the prism effect of the fog, like a circular rainbow. Well, a rainbow was supposed to be a sign, a portent that something was about to happen, or a direction to a pot of gold. But a rainbow at night seemed all wrong. Was it an omen of something terrible about to happen?

Diane Fry was surprised to be handed a couple of forensics reports by an officer entering the CID room at West Street.

‘What are these?’ she said.

‘Results from some items that Detective Sergeant Cooper sent through for processing.’

‘Really?’

Fry became aware of Becky Hurst bobbing up like a child who always knew the right answer in class.

‘Those will be the items from Harpur Hill,’ said Hurst.

‘Yes, you’re right.’ Fry frowned at the first report. ‘A hat? And an LED torch?’

Hurst came over to her desk. ‘That’s it. We believe they were Sandra Blair’s possessions.’

‘We?’

Fry smiled. She knew that when Becky Hurst said ‘we’ she actually meant Ben Cooper.

Hurst didn’t flinch at her tone. ‘They were found concealed in a plastic bag and dumped in a drinking hole for cattle. Somebody must have taken them away from the scene of Sandra Blair’s death at the bridge to dispose of them. There’s got to be a reason for them doing that.’

‘I suppose there has,’ said Fry.

She was interested now. She opened the report and gazed at its results for a moment. Hurst began to get impatient.

‘Well, what does it say?’

‘They got a hit from a print on the casing of the torch,’ said Fry. ‘And from the inside of the plastic bag the items were in too.’

‘A hit? Seriously? So it was someone who’s already on the database.’

‘Yes.’

Fry had turned to the second report. ‘And what’s this? The lid of a marble tomb? These are prints recovered from the Lady Chapel at Knowle Abbey this morning. And the results match.’

‘They got a hit to the same person?’

‘Yes, the same.’

She put the report down and began to speak more briskly. ‘We need to assemble a team for an arrest. Request an armed response unit. We need to use all precautions. He’s known to possess two shotguns. And there’s a dog on the premises too.’

‘But who is it?’ insisted Hurst.

‘An individual with a conviction for poaching fourteen years ago. Jason Shaw.’

‘Great.’

Hurst began to make calls, but she stopped and turned back to Fry.

‘Diane, there’s one thing we’ve forgotten,’ she said.

‘What’s that?’

‘What happened to the explosives stolen from Deeplow Quarry? Where are they now?’

The first explosion was shocking in its suddenness. It caught Cooper completely off-guard. He should have known it was coming, but the moment of expectant silence before the detonation made it all the more shocking when it happened.

The loud boomechoed across the village green and bounced off the walls of the limestone houses. It startled a flock of wood pigeons out of their evening roost in a sycamore tree on the edge of the churchyard. For a few moments the birds flapped in a panicked circle, passing overhead and silhouetting themselves against a cascade of light the explosion had hurled into the air.

Cooper looked round, embarrassed at his own reaction, ready to laugh it off if anyone had noticed. Tonight was a test. Fire, heat, explosions, the sight of blazing timbers. When he’d decided to come out on Bonfire Night, he had no idea how he would cope with these sights and sounds. But it was something he had to face. He couldn’t avoid it for ever. There was no future in trying to run away from the past.

A barrage of missiles shrieked across the sky like hunting demons. Cooper was deafened by the screeching and jumped in shock at a volley of bangs on the hillside behind it.

He stopped for a minute to pull himself together. Despite the cold air, he could feel sweat breaking out on his forehead and his hands trembled. The reaction was deep down inside him, impossible to deal with on a deliberate, conscious level. He would have to fight his way through it.

Cooper stood in the yard, his face lit by the coloured flashes, surrounded by crackling and the smell of charcoal and sulphur. He felt once again that he was standing in the middle of a raging inferno, caught up in the heart of that burning building, with flames leaping around him and smoking timbers crashing to the ground, his skin scorched by the heat of the fire.

But there was nothing else for it. He would have to go inside.

39

The lights of three police cars arriving in convoy created quite a stir, even in Bowden. They certainly attracted the attention of the residents who were at home that Tuesday evening, including Caroline Mellor, who appeared at her window across the green to observe the activity.

Two of the vehicles pulled up outside the home of Jason Shaw and officers piled out. The third car swerved across the road and blocked the access to the village. Two armed officers went to the front door, while another covered the back yard. Diane Fry waited at a safe distance with Luke Irvine and Becky Hurst, while uniformed officers were stationed to keep spectators away.

Fry had checked with the Knowle estate office whether Shaw would be working, but he wasn’t on the staff rota for this evening. And his blue Land Rover Discovery stood by the side of the house.

‘Don’t give him time to react,’ she said. ‘Don’t forget there are firearms kept on the premises.’

When there was no response to their hammering on the front door and shouts of ‘Police!’, the entry team produced a small battering ram and swung it at the lock. The door burst open after two strikes and they entered the house. Jason Shaw’s dog could be heard barking hysterically from the rear of the property.

After a few seconds one of the officers appeared in the doorway and signalled to Fry. The CID team moved into the house. But they were disappointed to find it empty.

‘All the rooms are clear, Sergeant.’

‘His Land Rover is here.’

‘Even so, there’s no one home.’

Fry went through the rooms herself and found the gun cabinet. It was securely locked, as it ought to be, so there was no way of telling whether both shotguns were still inside. Not without breaking it open, which would take time.