"Sam..."

He could hear the concern in his friend's voice. Was equally sure the look on his face called for it. But damn if he cared at the moment. He just kept staring after...

I know I asked for something...anything to distract. To make time move when I couldn't. But this...this is...

"Can you..." Sam started to ask, but lost track of what he was going to ask.

"We should sit," Cas gently suggested. He started towards the table, pausing when Sam didn't move. "I can...try to explain. Give you what we know."

"Is she... Is this like...Adam?" He finally turned to follow Cas to the table, his face now a blank slate.

Cas wasn't sure if that Sam was really ready for more information, or if he was simply getting better at hiding. "Millie's parents are John and Mary Winchester," he started as they sat. "As far as we know, anyway."

"As far as you know?"

The angel gave his friend a pained smile and told all he knew. Sam sat, taking it all in. Cas paused several times, expecting questions or interruptions, but the other man just sat, listening.

"So, we need to find Chuck. He...will hopefully have more answers," Cas finished lamely.

"And that brought you here?" Sam asked quietly.

"Jack is asking around heaven, but...yes."

"I don't know where Chuck is." He pushed away from the table and stood up.

Cas jumped up. "Would you... Could you help?"

"He said not to tell me, didn't he?" Sam asked instead.

"He..." The angel hesitated. He didn't need to ask who Sam meant. "Yes.:

The younger Winchester brother nodded over his shoulder before walking off.

He wandered down the halls, aiming towards his old room. Pulling out his phone, he thought to finally send that text to Aileen, just to find missed texts from her and missed calls from Jodie.

What do I say...?

"Careful..."

Sam looked up to find Millie standing outside Dean's room. She was looking into the room, not at Sam. "Are you...?" He actually looked behind him before turning back to find her now looking at him. He couldn't help but smile. "How do you do that?"

"Do what?"

"Know I'm- someone is coming?"

"Well-honed hearing," she said flatly, going back to looking in the room.

Given what Cas had just told him, he shouldn't really have been surprised. "That's... That was..."

"Dean's room. Figured." Sam let the silence ask his next question, which she easily picked up. "It feels...full. Like what you'd expect from someone who felt at home. Even if you had emptied it, that feeling would probably linger for a good while."

He didn't know what to say to that. She was right, and that... He didn't know why it shocked him, but it did. He had felt it himself anytime he walked by. He couldn't walk in, because he felt like he would taint it somehow.

"It's not like that one," Millie continued and Sam saw her point towards his room. His gaze returned to her, but she still wouldn't look at him. "That one is empty. Because you lost a piece of you. And when you left, you took everything you could with you to fill the hole."

Again, so right. He sighed with the truth of it. "Maybe... Maybe I took the wrong bits with me."

"I don't think so," she said, finally turning to him. She nodded her head towards Dean's room. "This is something you want, but you still don't think you're there yet."

He very nearly laughed. "You're not psychic or anything are you?"

She did laugh. "No no. Just...familiar territory. I've been in the same position all my life too."

He nodded in acknowledgment of that fact. It seemed they were pretty similar, when all was said and done.

After a beat, he asked, "You didn't want to tell me either, did you?". At her confused look, he added, "Like Dean. You didn't want me to know who you are."

"No. I knew Cas was going to tell you no matter what. Ironically for the same reason Dean didn't want to tell you. They care."

"And you?"

"Me?" She scrubbed her hands over her face. "Selfish reasons maybe."

"I don't believe that." He practically shot the statement at her.

"I don't know," she shrugged. "What's the point of that. You lost your brother. The last little piece of family - true family you had. A brother you have known and loved your whole life. That you are still missing. Will always miss. Oh, but here? Have a randomly created little sister to fill that hole? It's wrong."

"It's not-" Sam tried to contradict her, but she cut him off.

"It is. I don't exist Sam. Not really. And who I am? That information came from a notorious liar. No. There's too much unknown to put that kind of..." She puttered off, unable to finish. But he could hear it. Knew the feeling.

"No pressure," he said reassuringly, taking a step towards her. "I'm ok with the basics. I'm Sam. You're Millie. That's it. We work out the rest as it comes. Ok?" He wanted to comfort her, as much as her not wanting to tell him who she was meant to protect him. "You do exist, Millie..."

He was right next to her. As close as he had been since entering the bunker. As he raised his hand to put it on her shoulder, he felt...buzzing. Like the build up of static electricity.

And as his fingers just barely brushed her shoulder, the buzzing became stronger in his fingertips. And then everything went black.