Allegra decided not to tell anyone about Crowley and the scroll. She kept it and her notes in her room. Bobby wasn't the problem; she trusted him. Sam was. A couple of months had passed since Allegra'd found out he was still alive, and Sam kept saying he didn't know who sprung him out of the Cage nor why. Allegra didn't know what to make of it. Angels had the power to bring people back, but they only did so if it was necessary for the bigger picture or whatever. If they wanted to pull a Cage heist, shouldn't it have been Michael instead of Sam? And then there was that other person who miraculously returned to the land of the living.

Samuel Campbell, Sam and Dean's grandfather on their mother's side, came back too somehow. He and Sam rallied all the Campbells who were still in the family business and went out hunting together. The one time Allegra met Samuel had been enough for her. She grew up without a grandfather (she always assumed her grandparents were dead, but of course, she never had any, to begin with), but she'd always imagined a bearded man with a warm smile whenever someone spoke of their grandfather. Like the old man on the mountain from the story of Heidi, one of her favorite books as a kid. But Samuel Campbell did not fit that image at all. He was bald, clean-shaven, stern, and to the point. 
Allegra made sure to stay away from him and the other Campbells. It took time to trust Dean, Sam, and Bobby, but she remained vigilant around any other Hunters she bumped into. But even so, she found herself sucked into the life. She worked on cases with the Winchesters before, but she never considered herself as a Hunter per se. Now she realized she was becoming just that.

Bobby gave Allegra a cell phone with some important numbers in it and arranged fake IDs for her, but somehow she always got away with using her real name. All dressed up in a two-piece with some heels, and she actually passed for a lawyer aiding the FBI. Allegra didn't like the idea of pulling credit card scams, so she instead got a job as a secretary at the sheriff's station so she could put some money aside.
Neither Sam nor Bobby liked her working with sheriff Mills, but it actually came in handy having someone on the inside. And the sheriff knew she lived with Bobby (the story was she was his cousin) and was also aware of his life as a Hunter of the supernatural, so she didn't ask questions when Allegra said she couldn't make it to work.

Allegra mostly worked cases with Bobby, though Sam would sometimes call to ask if she wanted to join him. She made up excuses at first, but she couldn't keep saying no to him. And Bobby started to notice she was avoiding him, which earned her some gruff huffing and puffing. To do him a favor, she called back.
She teamed up with the youngest Winchester on the more dangerous jobs, and every time they were together, Allegra kept a close eye on Sam. He looked okay physically. He looked like Sam. But after a while, she noticed he wasn't Sam. Not like she knew him anyway. He was more... no, not more. Less. 

He had this whole 'devil may care' thing going on. Actually, no, not even that. He didn't care at all. Not that he wasn't nice or friendly. He just reacted bluntly when he normally always sympathized with loved ones. The whole cop/FBI/inspector act was just all the more convincing because of it. And he didn't smile anymore. A grin once or twice, yeah, but he never smiled like he used to. Not once. It was like he was... empty.

***

After working yet another case with Sam, Allegra was glad to be back at Bobby's. She'd come to see the Hunter's house as home. She still had very little to call her own, but it was more than she had before. Her closet was more than half empty, but at least her clothes were hanging instead of stuffed in her pack (which was thrown to the back of the closet). She had books in her room, just like when she was a kid. Most of them came from downstairs, others she 'borrowed' from library archives and old bookstores (Allegra always wrote down where she got them from so she could return them after reading). She had a place that was her own for once.
Allegra climbed the stairs to her room and casually threw her green leather jacket on her bed when she heard footsteps behind her. She turned around, half expecting Bobby to welcome her home. Instead, she saw Sam walking straight into her room and closing the door behind him. She sighed and crossed her arms.

"People usually knock and wait for permission to enter a private room, Sam."

He rolled his eyes and knocked on the door, making Allegra chuckle.

"Funny. What's up?"

"I just wanted to ask... Did I do something wrong?" asked Sam. "I'm getting the feeling something's going on between us."

Allegra bit her lip. She had been a bit curt to him lately. Getting stuck in her research (again) and his whole new attitude had her on edge.

"No, Sam, nothing's wrong." She smiled apologetically. "I'm sorry, I guess I'm just getting used to this whole thing. It's weird."

"Without Dean, you mean?"

Allegra was surprised at that remark.

"No, not... not really. Why would you...?"

"I get it, it's not the same without him. But it is what it is. Though I have to say I was surprised he didn't pick you. I mean, sure, I did tell him to have a normal, apple-pie life with Lisa, but I suppose I thought he was gonna at least try it out with you first."

Allegra wasn't sure if Sam was messing with her or if he was sincere. But whatever the case, she didn't want to discuss Dean with him.

"Well, you were wrong," she said with a click of her tongue.

Sam looked at her intently.

"So nothing happened between the two of you? Because I could've sworn you two had your moments."

"No, nothing happened. Why do you care?"

Sam closed the distance between them. Allegra's eyes opened wide when his lips pressed against hers. He was almost two heads taller than she was, so with one arm wrapped around her waist, he picked her up from the floor like it was nothing and brought her closer to him. She tried to push herself away from him, but Sam just held on to her tighter.
Allegra slapped him in his face, which seemed to snap him out of it. Sam broke their kiss off when her hand struck his cheek, and as soon as her feet touched the floor, Allegra bolted to the closed door. She threw the door open, but Sam was already behind her, using only one hand to slam it shut. He turned Allegra around and pushed her against the wood, keeping his hand against her shoulder. He had her blocked.

"Sam, what the hell?!" cried Allegra.

"It took me a while, but I finally saw it," Sam said, drawing closer to her. "I've never seen Dean with anyone like I saw him with you. I wondered what it was, and then I knew. That light inside you, the gold in your eyes... You're bewitching, Allegra. I can't hold back any longer."

He cupped Allegra's face and leaned in to kiss her again. It wasn't as rough as before. And it only lasted a few seconds. Sam pulled away from her and gazed into her eyes. His own held a playful flicker between green and hazel. 

"Sam, I... I can't... Dean..."

"Dean's gone, Allegra," whispered Sam. "But I'm right here. And I want you."

His words stirred something within Allegra. She closed her eyes as Sam carefully stroked her cheek with his thumb. Then, his lips brushed hers, over and over again, until those brushes turned into a kiss. This time Allegra didn't struggle. She just let it happen, not really sure why.
Her lips parted a little, and Sam's tongue slipped into her mouth. Allegra's tongue met his, and from that moment, her body took over. Her arms went around his neck, pulling Sam closer to her. He responded by sliding his hands over her body, all the way down to her thighs. 
Sam easily lifted Allegra, and she wrapped her legs around his waist. He pressed her roughly to the door with his body. Their tongues swirled around each other. An almost inaudible moan escaped Allegra. But Sam heard, and that just aroused him even more as he started to slowly grind against her. Allegra gasped in their kiss and tangled her fingers into his soft brown hair. 

Suddenly, Sam swung her around and carried her to the bed, dropping her first so that he could be on top. His mouth traveled down, kissing her jawline, the side of her neck, her collarbone... He lifted her shirt to reveal her naked belly and moved his kisses from just above her breasts to her belly, making Allegra tremble. She wanted to beg Sam not to stop, but another name nearly escaped her lips instead. Her eyes opened in shock.

It's not Sam you want; it's Dean. You've always wanted him. There's no one else you want more. Sam won't do. He's not his brother. Dean was gentle with you because he cared for you. Sam isn't Dean... Sam isn't Dean...

Stop deluding yourself. You can't have Dean, and you can't have Sam either. You can't have anyone at all. Keep doing this with Sam, and he'll be another Eric to feel guilty about. Everyone who touches you dies. Everyone who loves you leaves. Eric... Dad... Dean...

Dean...

Sam returned to kissing her neck. Both his hands were at her hips, though one was actually under the waistband of her jeans. Allegra gripped his wrists. He looked up at her, the lust so clear in his eyes.

"I'm sorry, Sam. We... I can't do this."

"What? Why not?" He raised a brow.

"Because... it wouldn't be fair to you."

Only Bobby knew the real reason and Allegra preferred to keep it that way. So she would give him the other reason, the one she didn't mind him knowing and the one he asked about earlier. Allegra shuffled up from underneath Sam and sat against the wall. He sat back on his knees and narrowed his eyes at her.

"Fair, how?"

"Nothing happened between Dean and me, but I wish it had. It wouldn't be fair to you that I'm thinking about your brother."

"You really think I care?"

Allegra cocked her head. Had he really just said that?

"It won't make a difference. Dean's gone, and he won't be coming back anytime soon. So, as far as I'm concerned, you're mine by right."

She gasped. Those words... She heard those exact words before. Allegra quickly drew her knife, strapped as always at her boot. Sam held out his hands.

"Wow, wow, easy."

"I don't know what you are, but you're not Sam Winchester. Sam would never say something like that. Lucifer, however..."

The corner of Sam's mouth crept up into a wicked grin, and then his hand hit the weapon right out of Allegra's. It went flying across the room. Sam anticipated her next move and grabbed hold of her wrist before she could land a punch. He pulled Allegra down by her leg with a swift swoop, pinning the redhead underneath him with his body. She felt his hand around her throat.

"Clever little bitch. I was only able to leave a fraction of myself inside little Sam. But it was enough. I just needed to bide my time. And now, you're mine."

Allegra struggled to breathe. She tried to concentrate so she could use her powers on him, but the pressure on her body made it hard to focus. Then all of a sudden, the pressure was gone, and air filled her lungs. Sam was lying disoriented on the floor after having been thrown against the door by a dark-haired man in a trench coat.

"Are you okay?" Castiel helped Allegra up from her bed, looking both angry and concerned.

She coughed and nodded, her hand going around her throat. That was gonna be sore for a while.

"It's Lucifer," she said, her voice a bit raspy. "Part of him is still left in Sam."

"You'll have to use your grace," said Castiel. "Lucifer was an Archangel. I can't go up against him, not even if it's only a part of him. But you can. You're half Archangel. Use your grace to cast him out."

"Castiel, I don't know how!"

"I'll help you. Just lay your hands on him."

Allegra walked up to Sam/Lucifer, who was starting to push himself up. She held his head while Castiel placed his own hand on her shoulder, the same one that carried his handprint. A sudden strength rushed through Allegra, and the man at her feet screamed in pain. She felt that warmth, that power she sometimes felt deep inside her. Her grace finally surfaced, and it was the most sublime sensation Allegra had ever felt. She welcomed it, letting it flow through her, and willed it to cast Lucifer out of Sam's body so that only Sam, the real Sam, would remain. A white light flashed through the room. When Allegra blinked, she swore there was gold glitter in the air. She staggered back into Castiel's arms. He caught her and made her sit on the bed.

"Deep breath," he said. "It's normal to feel drained. It was your first time using your grace in such a manner, after all. You'll feel better in an hour or so."

Allegra looked at Sam from the corner of her eye. He was lying unconscious on the floor. Castiel noticed.

"He'll be fine. Lucifer is gone. You did it.

With that assurance, Allegra finally looked at Castiel. His eyes were even bluer than she remembered. The anger was gone from his expression. She only saw concern. Allegra didn't really know what to say to him. A simple thank you wouldn't cut it. Not with him. Not after the torment she put him through. 

"You look surprised," observed Castiel as he saw her gaping at him. 

"I just... didn't expect you to help."

"Well, like I said when we last met, you are important to us. I watch over you. Of course, I will help you when you are in danger. No matter how many plagues you put on me, I'll still be there."

They looked at each other a bit awkwardly, but eventually, Allegra did decide to do the right thing.

"Thanks, 007."

"I still don't know what that is," admitted Castiel, making Allegra grin.

"I'll explain some other time, I promise."

She gave him a small peck on the cheek, and she could've sworn Castiel actually blushed at it. Who knew angels could blush? He nodded to her, and then he was gone, leaving Allegra alone with a still-unconscious Sam Winchester.

***

Sam seemed okay when he woke up. And luckily for Allegra, he didn't remember anything that happened. Not Castiel throwing him against the door, nor him strangling her, nor their make-out session. Allegra convinced him that they'd been talking, and then he started feeling dizzy and hit his head when he collapsed. He seemed to buy it. For now, anyway.
They said their goodbyes, and Allegra watched Sam leave from her window, but she still wanted to be sure that he really was alright. She reached out to his soul. All kinds of alarm bells went off inside of her head when she couldn't get to him. Sam was walking further away from the house, but even so, she should've locked on to him by now. Her power wasn't held back by something as trivial as distance. She'd found Dean's soul from several States over, so why couldn't she find Sam's when he was only a couple of hundred feet away?

Castiel told her that using her grace left her drained, and Allegra was feeling pretty tired. So it was probably just what it was and nothing to worry about. She kept an eye on Sam until he was gone from sight, and then she dropped onto her bed. Allegra tried to forget everything that happened the past hours and tried to get some shut-eye, but she couldn't shake the horrible feeling she had now. It gnawed at her, making her toss and turn. Only one thought seemed to be on Allegra's mind; if Sam really was Sam now, she should've been able to lock onto his soul - unless he didn't have it. And if he didn't have his soul... Where the heck was it?