Callum arrived at the pumping station just on the verge of twilight.

A fire had ripped through the place several years before. The damage so severe that it had never been refurbished. The walls still showed traces of the fire, the bricks around the windows, blackened, the frames warped.

The chain link fence that had once surrounded the place had been ripped down, mostly by drug users wanting a place to shoot up, or the homeless, using it as shelter from the elements.

In places where the fence remained intact, foliage and creeping plants had started to reclaim the land. The weeds growing taller than a man, in some areas.

What gravel remained, crunched under Callum's boots as he and the search team huddled near to the entrance to the station. The door, hanging askew, was partly ajar.

After organising officers into two teams, Callum headed in first, his asp already drawn. Followed by Smithy and his team.

The interior had a dampness about it, a chill in the air despite the warmth of the sun during the day.

Standing water puddled the concrete floor in places, from the holes in the roof that hadn't collapsed. Somewhere ahead, Callum could hear water dripping. Moss grew in patches on the walls, which glistened wetly, as Callum swept his flashlight around the hall. The air reeked of rot, damp and decay.

If Matt was responsible for bringing Emma and Devon here, he couldn't have picked a worse place. Callum shined his flashlight across the floor, which was littered with used needles and condoms, and other debris.

"Emma!" Callum called, as he frantically and methodically searched, his voice echoed back, and he waited a moment, before calling out to her again, not quite succeeding in keeping the panic out of his voice.

His boot crunched on a used needle. If Devon's curious fingers had touched one…the thought made Callum call out his son's name. "Devon!" He paused, straining to hear even the smallest sound.

If Matt had hurt either of them….

A rage he'd only ever felt when he thought about his father burned his blood. He should never have allowed Emma to talk him out of following his first instinct of beating the crap out of Matt. He shook his head slightly; this wasn't Emma's fault. And she'd probably saved him from an assault charge, he had no doubt Matt would have been more than happy to press.

A noise alerted Callum to a room, and he turned and motioned for silence as he waited for the echo to subside. It came again, and throwing all caution to the wind, he raised his asp, and kicked the door in savagely.

"Emma! Devon!" he called again, as he looked frantically around the room.

Matt leaned casually against the far wall, his arms folded. "It took you long enough," he said mildly, before Callum had crossed the room in a few strides, and had his fists buried in Matt's shirt, pulling him forward, just as Smithy and Will entered the room.

"Where are they!" Callum demanded, his eyes narrowed, and blazing with savage intent.

"Around," Matt smiled pleasantly. Then peering casually around Callum, spied Will, standing off to Callum's left and Smithy's right.

"I wondered when you'd turn up. Missed out again, bad luck."

Callum gave Matt a little shake. "No more games, Hinckley!" Callum demanded, furiously. "Where are my wife and son!?"

Matt smiled, and enraged, Callum threw Matt up against the wall, hard. "You hurt her or my boy, and I will bury you!" Callum hissed dangerously, his eyes narrow slits, his hands buried deep into Matt's shirt.

"Sarge!" said Will in a warning tone. He knew all too well, what Matt was a capable of.

Matt glared at Callum. "She's not the most faithful of wives. She'll make a fool out of you, just as she did me." Matt turned to Will, his smile gloating as he faced Callum once more. "Are you sure they're really your kids?"

Callum's hands tightened on Matt's shirt, almost making him choke. "Where are they?" Callum demanded, in no mood to listen to Matt, or his questions.

"You don't believe me," Matt was quick to guess. "Maybe you'll believe Will," he stated, as he turned to Will, with a smirk. "Tell him!" he challenged the younger man. "Tell him how you slept with my fiancée!"

Callum frowned and turned to Will, his eyes blazing, not wanting to believe Matt, but seeing the guilty truth on Will's face as he lowered his head.

Will and Emma?

Questions flooded his thoughts, but he pushed them away savagely. Right now, all that mattered was Emma and Devon's safety. There would be time enough later, to discuss this. He wasn't going to give Hinckley the satisfaction of getting to him. Explanations could wait.

"The night before our wedding, she admitted to sleeping with another man," Matt goaded.

"Get him out of here!" ordered Smithy, as Callum pushed Matt harder against the wall, a murderous glint in his eyes.

Matt grinned like a shark, going for the kill. "She begged me to still marry her."

"Sarge…" said Will quietly, as Matt was pulled from Callum's suddenly limp hands, and cautioned as he was led away.

Callum turned to glare at Will, fighting the urge to lash out, as understanding of why Will had kept on asking Emma out, after the bombings dawned on him. "Leave it!" he said brusquely. "We need to find Emma and my son."

Callum turned abruptly and left the small room, trying to blot out Matt's revelations, as he tried to focus on the search.

"Emma!" Callum called, and paused, as the echo faded, listening intently.

He turned back briefly as Smithy came up behind him. "You okay, after what happened back there?"

Callum turned back to the search. "Let's just find 'em and get out of here," he said, and then stopped with a frown on his face, as a sound came from just in front of him.

"Emma?" he asked, hardly daring to breathe. "Where are you, Sweetheart?"

The sound came again, and Callum quickly headed towards it, Smithy quickly following after him.

"Emma?" Callum called once more as he pushed open a door, just ahead of him, his heart racing.

A scuttling sound from a corner to his right brought his attention in that direction. Smithy's flashlight swept around the room, before finding the huddled form, pressed against the wall.

"Oh God, no," Callum, whispered as if the breath had been knocked out of him.