Sam sat in the passenger seat, staring down at his lap top with Charlie in the driver seat, flipping through the pages of a book. They've been at this for almost an hour already.

"You said that the father had himself under control for years." Cas says, standing outside the car beside Charlie. "There had to be a way for him to do that and start a family with a human."

But it's not like they could ask him about it, Sam thought bitterly. He shuts his laptop with a sigh of frustration and looks over his shoulder to the boy bound in rope in the backseat. It would be so much easier to just gank him and be done with this, specially after what he's done to Dean. He could've killed their unborn child if he hadn't gotten there in time.

Sam takes a deep breath and turns back around in his seat, thinking about that would only make him angry.

"Maybe his dad kept a journal or something?" Charlie suggests, taking his mind off of previous thoughts.

"If he had, it's probably long gone by now."

"Well you don't know that!" She sits the book down, "The two grandparents could still have some of their things, they had a bunch of boxes down in the basement."

"Even if they still did, do you think they would still have it?"

"There's only one way to find out," She replies, setting her book down. "It couldn't hurt. I mean, we're getting nowhere here."

He nods, letting out a sigh and digs his phone out. She was right, they weren't getting anywhere here. He calls Dean's cell, it rings a few moments before he's answered.

"Sammy?" Sam smiles when he hears his brothers tired voice, he must have been just sleeping.

"Did I wake you up?" He asks, running a hand over his thigh as he relaxes back against the car seat.

"Nah, I was just coming out of the bathroom when you called." Dean replies, he could hear him getting back into the hospital bed through the phone. "Though a nap sounds great right about now, I just fed Mary for the first time and now she's asleep. You?"

"Nothing at the moment, umm...is Margret or Brian there?"

"Yeah, well, Brian is. Margret left to get me something to eat, I don't think I could stomach anything here. Why?"

"Can you put him on the phone for me?"

"Yeah, sure. Give me a sec." Dean pulls the phone away, he could hear him talking to Brian and other other replying in the background.

"Yeah? Hello?" Brian.

"Hey, I wondering. You and Margret wouldn't by any chance have some of your daughter's and her husband's things?"

"We have a few of their belongings, yeah."

"Did her husband have a journal or something like that? Something he might've kept important things written down?"

There's a moment of thought, Sam looks up to see Cas had walks around the car to his window and Charlie leaning close to hear as well. He gives them a nod before he hears Brian answer him again.

"I think, he had a laptop. He used it for work but he would never let anyone else on it." That sounds like a clue.

"Do you have it?"

"Yeah but it wouldn't matter, you'd need a password for it."

"Where is it?" Sam's eyes flicks over to the redhead, something like a password wouldn't be much of a problem to her.

"It's in a box downstairs, couldn't exactly tell you which one though."

"That's fine, we'll get it." He talks to him a few more moments before hanging up.

"So this laptop, it might have something that could tell us how the father managed to tame his blood thirsty urges?" Charlie asks, pulling back to sit in her own seat again. "Want to head there now?"

"I can go," Castiel offers, "That way we can save some time."

"Are you sure, Cas?" Sam asks, "I mean, not that I doubt you but you've never been to their house."

"Just tell me the address and I'm sure I'll manage."