Here's the start from Drabbles of the Cult drabble. I cleaned it up a little bit, added just a tiny bit, but mostly left it as is. Hope you guys really like this - it seems to be the most popular vote to continue on!

No one was more surprised than Spencer himself when Erin Strauss walked into the bullpen that afternoon and went, not to Aaron or Dave's office, but over to Spencer's desk. "Dr. Reid, would you grab your things and come with me, please." The way she said the words made it obvious that this was an order and not a request. Spencer moved slowly to his feet, curiously watching the woman as she stood waiting for him, looking slightly impatient. He grabbed his bag and jacket, the only two things that he brought to work with him. When he straightened, she nodded at him and gestured for him to follow her. At the looks Morgan and Emily were giving him, Spencer shrugged as if to tell them 'I don't know'. He followed the woman out of the bullpen and down to her office.

As they walked inside, she gestured toward one of the chairs by her desk. "Have a seat, Dr. Reid." Erin said smoothly. She took the other chair, waiting until Spencer was settled before she spoke. She dove right in. "For a year now there's been a task force working on trying to prove the illegal activity going on inside of the Genus cult. This cult is suspected of quite a few things that so far, we haven't been able to prove, one of which is the selling of children, as well as some things that are frighteningly typical of many of these cults such as sexual relations with minors. There have also been members that have mysteriously left the group and yet, no trace of them can be found, yet we have no proof of what's happened to them. Now, most of this cult lives on a commune, but there are a few high level members that keep apartments in the city and many of them in fact work in different areas inside of the city. They proclaim that they aren't there to subvert people's free will, just to offer them a safe place to live without judgment for looks or sexuality or any of the judgments that society makes."

"I imagine they draw quite a few members that way. It would bring in those that feel unloved and unwanted and persecuted for being different." Spencer said slowly. Where on earth was this going? And why was she talking only with him in here?

"Exactly." Erin agreed. "It's been proven that they teach hand to hand combat there, but they proclaim it's only a 'self-defense' course to teach people to defend themselves if someone attempts to attack them for their differences. They claim to be non-violent, living by the creed of a God that does not judge nor hate anyone because of gender, color, sexuality, looks, or beliefs, only off of actions. Their leader, Ashton Blodgett, is a very charismatic man that's managed to not only bring in quite a few followers, but also charm the local officers so that their commune is essentially left alone. Any trouble brought, he's managed to talk his way out of."

Because he still didn't understand where this was going, Spencer kept his mouth shut, sitting back in his chair and nodding slightly to indicate that he had heard what she'd said.

For a moment Erin stared at him. Then she sat back in her chair, folding her hands in her lap. "Let me ask you a question, Dr. Reid, that may sound personal. However, I assure you I have a reason for asking." When he said nothing, she continued. "If you could name one person and only one person that you would trust in any situation, no matter the situation, to have your back and to trust with your very life, do you know who that person would be?"

There was no hesitation for Spencer to answer. "Derek Morgan." He said it in an almost absent way. While he answered her, his mind was already jumping ahead, taking what she'd just said and adding it to what had already been said. The picture that was building in his mind was a surprising one. He couldn't be right. Could he? Yet the next moment Erin picked up her phone and called someone. By way of greeting, she said "This is Section Chief Strauss. Can you come to my office? Thank you." And then she hung up. Spencer was willing to lay down money that it was Morgan she'd called. If he was right, then most likely the rest of his hypothesis was correct as well.

Erin looked at him once more and she seemed to see something on his face that had her smiling slightly. "I assume you've figured out what I'm going to ask you."

"I believe so, ma'am." Spencer said carefully.

"You have the right to refuse. You cannot be forced into this, Dr. Reid. Neither one of you can."

He nodded, falling silent. Right then he wanted to take a few moments to think of this and all the ramifications that would come if he said yes.

A few minutes later there was a brief knock at the door. Once Erin called out "Come in." the door opened and Morgan came walking into the room. The man almost instantly looked to Spencer, who was fiddling with his hands in his lap, before his eyes lifted to look at Strauss. "Ma'am." He greeted her politely.

She gestured toward the chair by Spencer. "Shut the door and have a seat, Agent Morgan."

When Morgan sat, he looked to Spencer once more, a question in his eyes. Spencer blew out a breath and simply waited for Erin to explain it all. She didn't waste any time before launching into the same speech that she'd already given Spencer. This time, when she got done with the speech, she finally got to the meat of what she was calling them in for. "I'm going to lay this out plainly to you two. Three separate times we've attempted to get undercover agents inside and each time, they've done something to tip off Blodgett. The man doesn't act violent, doesn't threaten. He always meets new people outside of the compound first and each time he's met an agent, halfway through the interview he tells them that he doesn't house federal agents on his compound. It was suggested that profilers might be the key to getting inside."

Spencer couldn't stop the question that sat on the tip of his tongue. "But why me?" He blurted out. Flushing, he hurried to clarify his statement. "Of all the profilers you could have chosen, I don't understand why you would recommend me, ma'am."

"There are a few reasons behind the choice, Dr. Reid. Ashton is intelligent and he seems to greatly respect intelligence, something you carry in abundance. Your intelligence also led us to choose you because you'll have the ability, if the opportunity presents, to view any documents that Ashton may have, any paper trails or account numbers where he might be keeping the money he gets from this, and your memory will allow you to recall it without having to keep notations that could get you caught. Also," Pausing, Erin actually looked a little embarrassed by what she was saying next, turning her eyes away from him. "With a change of clothes, you'll most definitely look far from being a federal agent. But we didn't want to send an agent in alone, with no backup at all, just in case things happen inside." She added the last part quickly as if trying to gloss past the first part of what she said. Spencer didn't really care. He knew he didn't look like an agent. It was just a fact of life.

"We've got someone close, an informant, who can get you in the door. Their job is recruitment, finding the right people with the right information to 'join'. You two would have to live on site, unlike some, but you'll have the capability to leave the compound and work in town. At least, if you get past the initial interview." She looked form one face to the other. "You two don't have to agree to this. There's no telling how long it'll take to gather evidence or how long you'll end up being in there. And there are risks involved, just as in any undercover job."

After a pause, Morgan looked over at Spencer briefly, his expression unreadable. Then he looked back to Erin. "Can we have a moment to talk about this, maybe, ma'am?"

"Of course." Pushing back from her desk, she rose to her feet. "I'll step out for a few minutes. I ask that you stay in here to talk. I'm sure you understand."

Spencer nodded absently at her, his mind still racing, thinking through all the outcomes that could come from this. The good and the bad, both. At the same time, he was thinking of what it would mean for him to disappear for who knows how long. He had his mother to think about. Sure, her care would still be paid for. The account that was used for it was well stocked with a nest egg just in case something ever happened to him and the money necessary was drafted out directly, so there was no worry about that aspect of things. Other than her, the only people he had in his life to vanish from was the team. It would be hard to be away from them, but he could do it if he had to. Could he honestly walk away from this, knowing that children were being sold and there was the potential that he could get in and save them if he just manned up and went?

"You in there, kid?"

The question startled Spencer out of his thoughts. He jerked a little before connecting that the voice was Morgan's. Blush heated his cheeks. "Sorry. Yes, I'm here. I was just thinking."

Morgan smiled and shook his head a little. "And that's new, how?" His teasing smile faded away and he twisted a little in his chair to better look at Spencer. "So, what do you think of this, Reid? Is this something you think you might be able to do? Keep in mind that it looks like the brunt of the work would be on you."

"I have to." The words came out before Spencer thought about them. He realized the truth of it as soon as he said it, though. "I can't walk away and say no, Morgan. I have to go. If they've already tried and no one's managed to get in and they honestly think I'm their chance to get in, how can I say no? I have to at least try."

"Are you absolutely sure?" Morgan prodded. His tone and body language were very, very serious. "Remember what happened the last time you visited a cult, Reid. Not just to you, but to Prentiss. Are you prepared to take the chance of that happening to you? Are you prepared for what could happen if they discover you're a Fed while you're there?"

Though part of Spencer gave a tiny little quiver at that reminder—no matter what anyone said, he still held some guilt over Emily being hurt by Benjamin Cyrus—the rest of him was firm with his resolve. "I am."

Gaze firm, Morgan looked at him, staring steadily at Spencer's face as if trying to read something there. Finally, he nodded. "Then I'm in too."

The simplicity of that statement surprised Spencer. For Morgan to agree so easily wasn't at all what he'd expected. "Morgan…" He turned as well, his voice slightly earnest. "You have a lot more to worry about leaving for a while than I do. A home, a dog, a family that will worry about you…"

"My family will understand. This isn't the first time I've worked deep cover, kid." Smirking, Morgan settled back in his chair, looking so much more relaxed than he had only moments before. "Plus, you think I'm going to let you walk into something potentially deadly and not be there to watch your ass? You attract trouble like a magnet, Reid. Someone's gotta be there to keep you safe."

That had Spencer scoffing lightly and shaking his head. Leave it to Morgan to think of things on those terms. In that single statement, Spencer gained understanding as to why Morgan agreed so easily. There seemed to be no ends to the man's need to keep Spencer safe from anything that he possibly could. This, though…this was a hell of a thing to commit to just to keep someone safe. "You know, you can take your protective mode a little far sometimes. If you refused, someone else would go with me. I wouldn't be alone."

"As if that's any better? I'd worry like hell the whole time you were gone, man. No. This way I know you're protected because I'm gonna be the one doing it. Plus, are you really telling me you'd be comfortable with someone else? Some random agent that you're stuck working closely with?"

No, he wouldn't be comfortable with that. And if he was honest, the idea of Morgan coning with him made this all seem just a little bit easier. If he had to be stuck with someone, at least it would be with someone he not only knew and liked, but trusted with his very life every day that they'd worked together. "Fine." He said with a small little half smile. As Morgan got up to go get Erin and let her know of their decision, Spencer looked over and said "Morgan?"

"Yeah?"

"Thanks."

Morgan's smile flashed wide and bright. "No problem, kid. No problem."

When Erin walked into the room a moment later, her eyes went back and forth between the two of them. Spencer rose, standing beside Morgan, and the two looked over her desk at her. "We'll do it."

Relief flashed into her eyes and she actually smiled a little at them. "Then let's get you two ready. We need you ready to go as soon as possible. We'll go meet with the team and catch you up to date on everything they have and see if we can figure out the best cover story for you two."

"Actually, I've got an idea on that, ma'am." Spencer spoke up carefully. "You said they advertise safety from persecution for those that are different, whether it be for sexuality, gender, race, or other differences. I think I know how to play on that."

Side by side, the two men followed Erin Strauss from her office, neither knowing fully what they were walking into or what would be waiting for them when they got there. But at the very least, the friends were going to be facing it side by side, and somehow it didn't seem as bad when they thought about it that way.