This story is inspired by an AU created by spitefulwolf on tumblr. The mythology is a mixture of Teen Wolf, SPN, and Buffy, but you won't need to know the other shows to understand. Enjoy. post/53541627331/i-made-a-teen-wolf-au-thingy

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Stiles woke up hating the world. It was fuck o'clock in the morning and his phone was ringing. Again. And, as usual, he slipped out of his bed and hit the floor as he grabbed for it, pulling his sheets partially down with him. He groaned and put his head to the wooden floor before putting the phone to his ear.

"Stilinski." He said sleepily.

"Stiles." Lahey's voice came through the receiver. "We've got a 34-40. We're treating it like a normal civilian interaction."

Stiles sighed. "34-40, got it. Give me 20."

It was just typical that he would be called in on one of the few nights he treated himself. After a long and ugly case involving a Boru Boru and a very near heart-attack on Stiles's part, he thought he deserved a break. Just for eight or nine hours so he could actually get a good night's sleep. But no. Someone was exhibiting suspicious behavior and lurking around the area of the Boru Boru's sighting. Normal people didn't just sniff around places like that.

He pushed himself off his cold floor before shuffling around for pants and a clean shirt. Stiles shoved his feet into shoes and reached for his jacket blearily, glad that he had taken a shower before collapsing last night. He definitely wouldn't have been able to take one this morning. He pulled on his jacket, quickly straightened his tie, and grabbed his car keys before heading out the door.

The drive in the Jeep was pretty quiet, except for the occasional whine that came from his brakes. He was going to have to get them checked for the third damn time in two months. Maybe someone from the office can check it out. He hoped so, because the douche at the shop kept doing unnecessary procedures to rack up the bill.

He drummed a rhythm on the steering wheel while he navigated the dense, quiet woods. The pre-dawn hours were so lush and lovely in this part of the country. It was nice to forget some of his responsibilities—even for a little while— and admire the stars and the sound of cicadas and the way the wind brushed through the leaves on the trees.

Stiles pulled up to the house that had long ago stopped being just a house. There was still a kitchen and a few bedrooms (mostly for people to crash in between shifts), but many rooms in the large house had been renovated into cells and interrogation rooms. There was a security room and high tech security cameras. What had once been an empty burnt up shell of a house was now a high functioning agency.

That looked normal on the outside.

Of course, technically, in terms of the law, they weren't actually a legal agency. None of the agents had official training or official licensing or had technically been legally given permission to capture and interrogate. But those were just technicalities. Because, really, who was going to give legal rights to a bunch of freaks investigating the supernatural cases in this town? That's right, no one.

So they went 007 on it and became one of the world's first Supernatural Affairs Department. Complete with undercover house and fake IDs. They distanced themselves from hunters, as many of them had found most hunters to be shoot-first people, which kind of really sucked when innocent people were in danger. Stiles and his team swore to protect the citizens of Beacon Hills as well as the dazed, confused, lost, and hurting supernatural populace.

They had established themselves well in this town, given that few of them grew up around here. The townspeople knew who they were, or knew what their cover identities were, and trusted them to get the job done. And so far, they had done exactly that without blowing their cover or alerting the public to what it didn't want to know.

Because monsters exist, and that's scary as fuck.

Stiles walked into the house and pocketed his keys, heading back to the interrogation rooms. He ran into Reyes on the way there. She was wearing tracking clothes and had her fingers wrapped around a cup of hot tea.

"Coffee, Stilinski?" The blonde inquired. Her hair was pulled into a messy bun and she looked tired. She reached for the coffee pot and sloshed the contents slightly.

"Yeah, thanks." He got himself a mug and poured out some of the bitter brew. "All nighter?"

She nodded. "I was the one tailing the new girl in town. She's back in room two with Hale and Lahey."

"Thanks." He turned for the hallway. "Get some sleep, Reyes. You need it."

She nodded to him and made her way around to the stairs, swaying slightly and clutching her mug as if it would support her. He sipped his coffee as he moved back to the second interrogation room. And met Boyd outside, waiting for him. The man handed him a file and filled him in.

"She hasn't said much. She's been defiant, but hasn't asked for a lawyer. Which is good, seeing as that would cause too much trouble. She also seems human, so far. Mahealani says there've been no eye flares, so that rules out wolf or shape-shifter of any kind. She hasn't had any other tells yet."

Stiles nodded and looked through the one way glass at the girl in question. She had brown hair and a tired expression, as if she was done with the bullshit and just wanted to cut to the chase. She looked up and stared in the general direction of where Stiles was standing and smirked softly. He frowned.

"How long have you guys been here?" Stiles inquired.

"We brought her in little over half an hour. She wasn't carrying anything too grand: a dagger and a small pistol."

Stiles nodded. "Well, I guess it's show time." He walked into the room with the file under his arm, leaving Boyd in the hallway.

"Hello. Special Agents Stilinksi, Hale, and Lahey of the Beacon Hills Unusual Crimes Department." He gestured to himself and the two other men in the room: Derek, who was standing by the metal interrogation table and Lahey, who was leaning against the far wall.

"That's a mouthful." The girl said.

Stiles laughed mostly without humor. "You got me. So, why are you here? Agent Lahey tells me that you were spotted lurking around a crime scene of a recent case."

"Is that so? What case was that?" She asked.

"It's not really your business, now, is it?" Stiles said calmly.

"It is if you didn't take care of it correctly. Do you know how to kill a Boru Boru?" The brunette looked at him, scrutiny scrunching the expanse of her forehead. Her brown eyes were searching as she checked all of them for reactions.

Stiles gaped before collecting himself and letting out a forced laugh. "Uhm, a what?"

"Don't play dumb with me; it doesn't suit you. I'm a hunter and I know what you do. So, Agent, what is this department really called?"

Stiles looked over to his partner and Lahey, both of whom had baffled looks on their faces. Hale ran his hand along his scruffy face and sighed.

"Who are you?" He asked.

"Allison Argent." She offered, holding out her hand to shake with Stiles. They didn't typically cuff suspected humans. When Derek was in the room, there really was no point, what with his superior strength and reflexes.

She hardly looked the part for a hunter. She looked sweet and innocent. She was most definitely in her twenties, if she was human. Probably no older than twenty-three.

"I'm twenty- one, Agent Stilinski. Your senior by about a year."

"Wait, how did—" He fumbled.

She smiled and tapped her head knowingly. Shit.

"Mind reader, huh?" Stiles sighed and grabbed his coffee. They didn't always deal with opposers with gifts, but it wasn't unusual for them to exist. Mind readers were talented, he wouldn't deny, but they were difficult to keep out of private and important information. Having that type of power is addicting, and sometimes people get used to a certain upper-hand and won't let go. It was going to be a long day.

"It doesn't have to be a long day, Stilinksi. I'll just cut to the chase, as you put earlier." Argent sat up straighter in her chair. "I want in. You're on a hellmouth, as far as I can tell, so it's never a bad thing to have more back up."

"How do we know we can trust you?" Isaac asked, fingers rubbing over his knuckles in a move Stiles knew looked casual to others, but really meant he was feeling anxious. Stiles flashed him a quick smile he hoped would be comforting.

"You can test me with every monster repellant you know, if you need to. Salt, silver, holy water, I know you know what to do." She shrugged. "I'd prefer not getting a wooden stake to the heart, because I'd die either way, but you can prove I'm not a vamp in other ways. Sunlight, is one option. But then again, you brought me in here without expressly inviting me and it still counts as a house."

Stiles just stared at her dumbstruck for a minute. "Isaac, go round everyone up and we'll talk about this. Wait until Lydia gets here to wake Erica. She deserves some rest."

Derek turned to him incredulously. "You can't be serious?"

Stiles pulled out a silver knife and turned to a cabinet with other supplies. "There's no harm in talking about it. She can't get out of here. It's monster proof, and therefore, human proof." He turned around with a small bottle of holy water, a package of salt, and a bag of hoodoo magic. He set these on the table and gestured with his knife. "What's your preference?"

The brunette smiled darkly. "May I?" Stiles hesitated. "I've had a few too many people test me this way. I prefer to draw my own blood, if I can help it."

Stiles looked over to Derek, who nodded. His nostrils flared and Stiles knew he was scenting the air for emotions that would give away intentions. He handed the knife over and Allison pressed the silver knife into her forearm, releasing a faint trickle of blood and a reaction no more exciting than a small hissed sigh.

While they ran through the tests, Derek and Stiles kept up a rather steady, silent conversation. It was pretty amazing how expressive Derek's face was. The silence had nothing to do with Argent being there; her mind reading would make it a moot point. No, Derek was just not much of a talker, so Stiles took cues from his eyebrows and the twitch of his lips. Besides, he didn't trust easily, so his speech was lessened even more.

Every once and a while, he would look over at Allison and watch a smile drop rapidly off her face. His brow furrowed, but he made polite conversation to make her more comfortable. She may technically be in their custody, but he wasn't a heathen. And he didn't like a lot of silence anyway.

Little over a half hour later, Isaac opened the door and gestured for them to come out into the hallway. Stiles assured Allison they wouldn't be long before he followed Derek out the door. They joined the other six members of their team, all watching Stiles intently.

"Isaac?" Stiles jerked his head towards the door and Isaac nodded. There was a small rush of magic through the air as he faced the door. "I've slowed time in the interrogation room." He said as he turned back to them. "An hour for us is a second for her. It should throw off her mind reading ability. There will be too much information to grasp at once, it'll all just jumble together."

"Good. So, Erica, you found her?" Stiles asked.

"Well, it was me and Isaac." She confirmed. She looked like she had gotten some sleep and had dressed in her favorite leather jacket and red lipstick. "I was doing rounds when Danny told me about someone snooping around the Boru Boru sights. So I called for Isaac and we followed her. I convinced her, momentarily, to slow down so we could reach her, but she must have used her mind reading to break the bond. Mental manipulation only works when you don't know it's happening."

"Yeah, but we got close enough to subdue her and bring her in." Isaac added. "No force really even necessary."

"Makes sense." Derek affirmed. "She wants to join our team." Stiles watched the reactions, none of which were too negative. Erica murmured to Isaac, who nodded. Boyd seemed nonplussed and Lydia made a face of approval.

"When they got here, she was really calm, as if she had been expecting this." Boyd said. "We walked her back to the interrogation room and she sat down and said nothing. Erica filled me in while Isaac went to phone you and Derek."

"Of course, they told me and Lydia and we began working on some creature profiles. None of them have stuck, so we're going with human right now." Danny interjected.

"I don't know why you all find it so difficult to grasp that she might just be a normal hunter." Lydia said, flicking a stray curl out of her eyes. "I mean, that's how all of us started."

"Yeah, and don't you remember how chaotic and distrustful we were in the beginning?" Scott asked. "We could barely stand being in the same room, let alone work together."

"Yeah, but you all got over it.' Lydia countered. She shrugged. "I say we keep an eye on her and see what happens. We don't have to trust her yet, but we can give her a chance."

Derek, who had been silent so far, offered an almighty sulk. "And what happens if she tries to turn on us?"

Danny sighed. "It's not like we wouldn't be able to take her down. There are eight of us and one of her."

Boyd and Erica nodded their heads and Scott murmured along.

"Alright, is this settled? We're giving new girl a chance." Stiles asked. Derek and Boyd just watched stoically, but everyone was in basic agreement as Isaac lifted the time warp and they walked back into the room.

Allison was looking blatantly star struck as she looked at them all. (So was Scott, to be honest.) Her eyes narrowed dangerously. "How did you do that? You were barely out for a second and I couldn't get a read on any of you. How—"

"You're not the only one in here with special abilities." Isaac said.

"Are you blocking my powers?" She asked in awe and annoyance.

Isaac's brows came together, "Uhh…" He trailed off.

Stiles looked around in confusion until he saw Erica's red lips curled into a smile. He'd ask her later. "Allison Argent, this is everybody. We have decided to give you a temporary membership to our inside world. Until your membership is golden, we will not be trusting you with any important information or great responsibilities. You'll have to follow orders and do what's best for Beacon Hills and the people who live here."

"I swear it." Allison held up her still bleeding arm in a salute.

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They had tended to Allison's needs and given her a room. Lydia was stationed inside the room and Scott was stationed outside. Stiles felt it was necessary to have two people watching, but decided that Allison would feel more comfortable if the one in her room was not a guy. She had basic needs and whatever and didn't need to be creeped out by one of his agents. Especially because Scott was the one who volunteered.

Stiles loved Scott to the max, and they had been best friends since forever, but the guy was not that smooth. He was awkward and clumsy and more than a bit socially challenged. But he was the one who had the most sleep last night, and was therefore the most qualified for the job today.

Derek had run off to run some errands and do some patrolling. Stiles debated briefly whether or not they should have a case hunt today, but thought better of it. They were all tired and if nothing was jumping out to bite their asses, then he wasn't going to tempt the fates.

Stiles followed the rest of the agents down into the lounge and watched them sluff around with tiredness in their eyes. "You guys can all go home. Until we have a case, there's really no benefit in staying, and we don't have enough beds for you all to sleep here. Go get some rest, but keep your phones nearby. I doubt we'll need back-up, but just in case."

Isaac and Boyd leaped up quickly and went to collect their stuff. Danny made his way back to the security room to pack up his technology and high tail it as well."Hey, Reyes?" Erica raised her eyebrow at him as she pulled her bag over her shoulder. "What did you do to mess up Argent?"

Erica laughed and tapped her forehead. "We have very similar abilities, she and I. She reads the mental waves people put out and I manipulate them. So I tried something new. I changed the waves so that she couldn't reach them."

"You can do that?" Stiles was impressed. He knew she'd been working on expanding her abilities, and apparently her efforts had been fruitful.

"Apparently." She turned for the door. "Good bye, Stilinski. I'll see you at a more reasonable time of day."

Stiles glanced at the clock on the wall and noticed that it was a little after four in the morning. He sighed and walked wearily to the security room to grab his own laptop, heading up to one of the three spare rooms in the old house. He slumped down on the old bed and opened the computer, determined to search up on Miss Argent's history and figure out what the hell a Hellmouth was.

A Hellmouth was defined as an area of concentrated supernatural activity. There was often a focal point where the curtain between dimensions was thin. So that would definitely explain why Beacon Hills was such a popular tourist attraction for monsters. Stiles had lived here for a majority of his life and he knew very well the amount of weird shit that went on around here.

It also turned out that Allison was from a long line of skilled hunters. For some reason, many hunters were very avid users. It must be a pride thing, seeing as many of the greatest hunting families had bloody branches going back centuries. Stiles searched their family tree until he came across one that made his blood run cold.

He reached for his phone and dialed his partner's number quickly.

"Hale, you're not going to like this."

"What is it?" He sounded on edge, as if the tone of Stiles's voice alone made him very tense.

Then again, it wasn't difficult to get Derek tensed up.

"Kate was an Argent."

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A/N: That's just a little teaser of what's to come. Don't worry, there will definitely be more.