The warehouse was cold and the floor was damp.

She'd given up fighting to be free a long time ago, surrendering herself to the fact she wouldn't be able to get herself out of the mess she was in - not alone, anyway. Catherine had even decided to be grateful for the gag she'd been forced to wear - it helped block the heady smell of melted rubber from invading her senses anymore than necessary.

Resting her head against the wall, she listened intently as her kidnapper hummed to himself as he worked, relieved when she worked out his echoing footsteps were going in the opposite direction.

Away from her.

Her relief was short-lived, though.

After a moment of silence, she heard his voice. Smug, taunting, conversational.

"It's me, Grissom. Times a wastin'. There's only two hours to go before Ms. Willows dies."

He hung up without waiting for a reply, just like always. She didn't need to be able to see him to know that.

Wincing, struggling impulsively against the restraints that kept her hands bound behind her back, Catherine could do nothing but glare as he approached her, his pace maddeningly slow as if he had all the time in the world.

Something she didn't have. Her time was running out.

She flinched when he knelt on the cold floor in front of her, jerking her head back away from his touch, seething at the amused grin that passed over his lips.

"Don't look so worried, Catherine. I've got you. But if Grissom doesn't find us.. It'll all be over soon." Paul Millander chuckled at the panic she couldn't keep from showing in her eyes, shaking his head as he stood up and turned to walk away, humming as he went.

'You've never let me down before, Gil,' she squeezed her eyes shut, hoping he would somehow pick up on her silent message. 'Please don't start now.'

The video was sent for analysis and all they could do was hope some of the background noise would match that of whatever noise they detected on the message Millander had left.

Time was running out and all they had to go on were unidentified fingerprints, two sound files and the occasional phone call.

All four CSI's joined Gren in the lab to try and determine who the fingerprints belonged to. They had to do something, had to keep themselves busy. If they didn't, they'd remember Catherine's face and see the fear she'd been trying to hide.

"How many prints have we crossed out so far?" Warrick asked after just over an hour of working in almost complete silence. "We have to be getting *somewhere*."

"Out of the prints Sara was able to lift, we got six different sets. One is Catherine's and another we can assume is Lindsey's because the shape and size is similar to that of the average kid. One set matches Eddie Willows, deceased, one set matches Grissom's. We're running the other two through the system now." Greg announced, pushing back from the computer on his chair, exhaustion written in the lines on his face. "Depending on how fast the computer words and if the people in question have their prints on file, we should be looking at a match in approximately.. ten to fifteen minutes."

"Does it really matter about the prints?" Nick questioned, rolling his shoulders in an attempt at releasing the tension that plagued them. "We know Millander has her.. The video and phone calls are proof of that. Do we really need to know whether his prints pin him to the scene?"

Sara gave him a sympathetic smile and straightened her back as she answered calmly. "We have to do something, Nick. We can't just sit here and wait or go out looking and hope we get lucky."

"I'd rather do that than.." Nick didn't get the chance to finish voicing that particular line of thought because chaotic noise coursed through the lab.

The pagers went off and the phone started to ring. Warrick checked his pager and saw the sound technicians had finished with the video and cassette. Grissom checked his pager and saw Brass was trying to reach him. Greg held a short conversation with the person on the phone, hung up and passed it to Grissom so he could call their colleague in the LVPD Homicide Department.

"The guys are done with the sound analysis," Warrick announced to the group.

"The blood found at Catherine's matches the blood found at the mother's. Millander must have used his Mom to get to Catherine - I bet at least one set of the prints we haven't identified yet belong to Isabelle Millander," Greg spoke as soon as Warrick finished speaking, the others absorbing the information as rapidly as possible.

Grissom ended his conversation, his expression grim. "Brass thinks he may have found Isabelle Millander's body dumped on the edge of an industrial park on North Rancho Drive." He locked piercing eyes on each CSI in turn. "Sara, Warrick, I want you to go and see what the guys have from the recordings. Nick, you've with me. We'll go identify the body and have a look around. Greg, the minute you get a match on those fingerprints prints, let me know. It might not be a vital piece of evidence in this case but it's still evidence and helps towards building the bigger picture. Warrick, Sara, when you're done with the sound guys, call with any information you have and if we're not back, come and join us in searching. If Millander's keeping time we don't have long to find her."

Warrick nodded briskly and left the lab almost immediately. Sara started to follow but lingered long enough to put a supportive hand on Grissom's shoulder. "We will find her, Grissom. She'll be okay."

Somehow managing a weak smile of thanks, Grissom stood when Nick indicated he was ready to go and the two of them left the lab and the building.

Throughout the short car journey, Nick tried to make reassuring small talk but when his attempts failed, he assumed Gil was lost in his thoughts and just didn't want to talk about it. In reality, everything around him went silence and the only thing Grissom could hear was the clock inside his head counting down.

Second by second by second.

Maps were spread out over the small table in the sound studio, covering every inch of the surface with the edges dangling off the sides. Warrick leaned over them as the sound technician replayed the recording of background sounds picked up from both the video and the tape.

"It sounds like it's near a road but not a busy one," Nigel Cullen, one of the technicians mused as his keen eyes scanned the map. "It doesn't sound like cars, though. Not fast enough or light enough."

"Trucks and vans?" Warrick located North Rancho Drive on the map and followed it with his eyes. He located the industrial park and managed to find the area where Isabelle Millander's body was suspected to have been dumped. "Millander dumped his Mom around here. Do you think it's possible he didn't go far from his hiding place?"

Nigel shrugged noncommittally. "It depends on whether your guy wants to be found."

"He does," Sara inputted, gazing at the map. "He wants Grissom to find them either before he does something to Catherine or while he's doing it. It's Grissom he wants to suffer, Catherine's just the tool he decided to use." She narrowed her eyes and focused on three buildings that looked small on the map but that she knew would be at least the size of the CSI building in person. "These three factories are on the opposite side of the park to where the body is supposed to be. They're also nearer the entrance which would mean more traffic would go passed them than anywhere else."

Warrick nodded and turned to Nigel, who'd moved to give the CSI's some room and sat back down at his computer. "Can you access the real estate database from your computer?"

"I think so, yeah. Never used it before but I don't see why I shouldn't be able to." Nigel shrugged again and closed the programs he'd been using to isolate the background noise. "What do you want to know?"

"Is there any factory space in North Rancho Drive Industrial Park that's either up for rent or has been recently rented on a temporary contract in the last week or so?" Sara filled in, catching on to Warrick's line of thought with a smile. "Millander owned a factory before, didn't he? The one where he met Grissom?"

"It's possible he wants to recreate their first meeting," Warrick shrugged and walked over to Nigel. "He's focused on Grissom so I wouldn't be surprised if that's what he wanted."

It only took a few minutes for Nigel to get into the right system and do the property search they'd requested. He sat back in his chair as the results came in, whistling to himself at the information that filled the screen. "Looks like your theory paid off. Unit 17 is rented on a temporary lease to a Mr. G Grissom and the unit next to it, Unit 15, is vacant."

"Figures that it's in Grissom's name," Warrick shook his head with a sigh. "It wouldn't have shown up in any of the searches he and Catherine did when they were looking for Isabelle."

"And we'd never have thought to look at property under Grissom's name, would we?" Sara shrugged into her coat and headed for the door with Warrick just a few steps ahead. "You drive, I'll call Nick with the news."

Nigel sat in his chair, surveying the maps spread over his desk and the tapes cast haphazardly over his workstation. "You're welcome, guys. No thanks necessary," he muttered, getting to his feet to start tidying the mess the eager CSI's had left behind.