...

Y/n and Scott stare at the surprise return student. Stiles runs in and takes his seat behind Scott in a frenzy. Y/n kept her gaze forward while Scott turns to him as Stiles started to talk. "Guys, I just talked to my dad, who just talked to Jackson, and I got really terrible, horrible, very, very bad news."

"I think we already know." Scott gestures to the seat in front of Y/n where there is seated a very smug looking Isaac.

After class Stiles informs them what he found about the kanima. "All right, I only found one thing online called the Kanima. It's a werejaguar from South America that goes after murderers."

"That thing was not a jaguar."

"Yeah, and I'm not exactly a murderer."

"Yeah, but you did see it kill somebody, which is probably why it tried to kill you. And it's still trying to kill you, and it probably won't stop until you're dead."

Stiles pauses as he stares at Scott. "You know, sometimes I really begin to question this 'friendship'." Stiles makes quote marks in the air and Y/n chuckles as she pulls him along.

"I also looked through my grimoire." She said when they caught up to Scott. "I didn't find much and what I did find was pretty much everything Derek said. When you get the Bite the shape you take reflects who you are, if it doesn't kill you first. I had an ancestor who knew someone who turned into a kanima. They said that the Kanima shape was most likely derived, partially if not all, from the person's self image. Something like identity issues? They weren't very clear."

"Why can't it ever be 'this is this and this is how you take care of it'?" She just shrugged as they entered their next class together, this time the boys sitting next to each other with Y/n behind Stiles.

Jackson came in a minute later and sat behind Scott. "Hey, testicle left and right and third wheel." He calls to the three. "What the hell is a kanima?" The question is enough to make all three turn to him in shock. But they can't say anything more as Coach gets the class' attention.

"All right, listen up. Quick warning before we begin our review. Some of you, like McCall, might want to start their own study groups, because tomorrow's midterm is so proufoundly difficult..." He chuckles a bit. "I'm not even too sure I could pass it. Okay, I need a volunteer at the board to answer the first question. Who's got it, huh?" A few hands go up, including Lydia, and he waves someone up. "Let's go, buddy."

Jackson had quickly told them about his recent encounter with Derek and what he heard in the hall just before class. "Paralyzed from the neck down. Do you have any idea what that feels like?"

"I'm familiar with the sensation." Stiles says.

"Wait..." Scott speaks up. "Why would Derek test you? Why would he think that it's you?"

"How should I know?"

"Wait, do they think it's Lydia?" Stiles asked.

"I don't know, all I heard was her name and something about Chemistry."

"Jackson!" Coach yells as he's now standing near the group. "Do you have something you want to share with the rest of the class?"

"Um..." He glances around. "Just an undying admiration for my-my Coach."

Coach smiles a bit. "That's really kind of you." Jackson gives a small 'modest' smile. "Now shut up! Shut it! Anybody else?" When no one else speaks he goes back up to the front of the class.

Scott then leans towards his friends. "How do we know it's not her?"

"Because I looked into the eyes of that thing, okay? And what I saw was pure evil."

"Then it's definitely not her." Y/n shakes her head. "Lydia's eyes are 50% evil, 60 on bad days, 40 on good."

"Y/n, that's not a very good argument."

"I'm aware of that, but it's not her. Whatever is happening it's not because of her." She looked down then at her notebook, shutting out any more argument about Lydia being the kanima. When she looked back up to maybe listen to what Coach was saying she found she was no longer in the classroom.

Y/n sits at her desk in the middle of the woods. Fog hugs the trees, difusing any light that may have touched her. She slowly stood up from the seat and looked around. There was no one in sight. When she turned back the desk was gone but a trail of wolfsbane was left in it's place. She followed it through the woods towards a house. The Hale house. It was quiet. She walked in and looked to her left. Her eyes widened in surprise with what she saw. She saw herself standing in the middle of the room, arm outstretched with a clenched fist, blood trickling between her fingers and down the side of her hand as she squeezed blood onto the floor. The blood soaked into the wood leaving no trace behind and the other Y/n looked up at her with glowing eyes and a smirk.

"Y/n!" Someone whisper shouted at her and she shot her head up with a startled gasp. Stiles had been calling her name with no answer until right then. He looked at her with furrowed brows. "Are you okay?"

"Um... Yeah. Yeah, I'm fine." She brushed off but he didn't seem convinced.

Before he could say anything his eyes darted down to her notebook. "What's that?"

She looked down to see she had written something in another language. Mihi prohibere. She quickly shut her notebook with a snap. "It's nothing." She dismissed. But it wasn't actually nothing. It was Latin and it said 'stop me'.

"Lydia~" Coach calling her in a sing song caught everyones attention. Lydia opened her eyes with a gasp as tears stained her cheeks. She was visibly shaken by something as she looked around with stuttering gasps. Coach looked at the board behind her. "Okay then, anybody else want to try answering? This time in English?" The class laughs and Lydia turns in confusion only to see she had written something seemingly in a foreign language several times.

"What is that, Greek?" Scott wondered.

"No, actually, I think it is English." Stiles had taken a picture of the board and reversed it to show them, but Y/n already knew what it said.

"'Someone help me'." She muttered but they heard her. She looked at Lydia in worry.

"Derek is not gonna kill her without proof." The three walk into Chemistry, Scott assuring her about Lydia.

"Not if I have anything to say about it." She huffed.

"All right, so he tests her like he did Jackson, right? But when and where?" Stiles wonders.

They look at Lydia flipping through a book at a station and then at the door where Isaac and Erica had just walked in. "I think here and now." Scott said. The five look at each other, glancing to Lydia for a moment until they all rush forward, each heading for Lydia. Scott sits next to Lydia on one side and Stiles pulls up a chair on her other. Y/n sits at the table next to Stiles while the Betas sit behind Lydia and Scott. Allison sits across from Scott and looks at him in question and he gestures to the two behind him.

"Einstein once said, 'two things are infinite: the universe and human stupidity; and I'm not sure about the universe'." Mr. Harris starts off the class walking down an aisle. "I myself have encountered infinite stupidity." He claps Stiles on the shoulder at that. "So to combat the plague of ignorance in my class, you're going to combine efforts through a round of group experiments. Let's see if two heads are indeed better than one. Or in Mr. Stilinski's case, less than one. Erica, you take the first station. You'll start with-"All the guys (bar Scott, Stiles and Isaac) and a couple girls hold their hands up. "I didn't ask for volunteers. Put your hormonal little hands down. Start with Mr. McCall." He finished. Erica smiled amusedly at Scott and glanced at Allison. "All right, next two."

Y/n was sat next to someone she didn't know for the first round of the experiment and she had to watch Erica 'flirt' with Scott in the seat in front of her to try and get to Allison. Allison was sat next to Lydia and when Mr. Harris rang his bell it was time to switch. She warned Lydia to not talk to Isaac or Erica before she had to move. Next Scott was with Lydia and Y/n had the great pleasure of being saddled with Isaac. She gave him a glance and he smirked at her. She rolled her eyes at him and turned to the appointed task.

"I'm only gonna tell you this once, pup. You touch even one hair on my ginger princess's head, I will burn your little werewolf ass to a crisp and turn your ashes into a crystal that I'll give to her as a birthday present."

He laughs. "Really?"

"It's a promise."

"I've never actually been to one of her big, invite-only birthday parties." He muses. "I did ask her out once though."

"I've heard this story before so I'm gonna pass."

"It was the first day of freshman year."

"Thought everything would be different for you in high school, but she said no." She feigned sadness.

He chuckled. "Yeah. Yeah, she even laughed. Told me to come back when the bike I rode to school had an engine, not a chain."

"Yeah, she's got a thing for motorcycles. You got turned down. Suck it up. It's not the only time you'll ever be said no to by anyone. Maybe you should learn to channel that negative energy into something productive, like writing."

"Nah, I was thinking I'd channel it into killing her. I'm not very good at writing." He looks at her and she glares daggers at him.

Mr. Harris rings his bell again. "And switch." Y/n was sat with someone else she didn't know and Scott and Stiles ended up together and Allison got put with Erica. Isaac slid into a seat next to Lydia and when Stiles tried to get up Mr. Harris slams a stick in front of him making him sit back down with a jump. "If you're trying to test my patience, Mr. Stilinski, I guarantee it'll be a failing grade." He warns and goes back to his desk. More time passes and Y/n is tense as she finishes. Mr. Harris rings the bell one last time. "Time. If you catalyzed the reaction correctly, you should now be looking at a crystal." Y/n looked and there was indeed a crystal. When she looked at Scott and Stiles they had some sort of beige sludge. Isaac picked up the crystal with tongs as he and Lydia admired it. "Now for the part of that last experiment I'm sure you'll all enjoy... You can eat it."

The three looked at the questionable thing. There was no way they could eat that. She thought. But then she and Scott looked at Lydia to see her taking the crystal Isaac offered. They could see a clear liquid dripping off of it. Kanima venom. She put it to her tongue. "Lydia!" Scott jumped up and everyone turned to look at him.

"What?" She asked.

"... Nothing." He sat back down. She turned away and took a bite of the crystal. She was perfectly fine. The kanima venom had no effect on her. Scott looked out the window to see Derek had seen everything.

...

Scott, Allison, Stiles and Y/n walk into Coach's office and close the door to discuss what to do next. "Derek's outside waiting for Lydia." Scott points out.

"Waiting to kill her?" Allison asks.

"If he thinks she's the kanima, then yes, especially after what happened at the pool."

"It's not her." Y/n insists. "I was with her before that thing came out."

"Y/n, she didn't pass the test. Nothing happend."

"It's a stupid fucking test!" She throws her arms up. "She has some type of immunity to the supernatural. I don't know how yet but she does."

"It doesn't matter because Derek thinks it's her." Allison says. "So either we can convince him that he's wrong, or we've got to figure out a way to protect her."

"Well, I really don't think he's gonna do anything here, not at school." Scott says.

"What about after school?" Scott sighs. "Okay, well..." She sighs as well. "What if we can prove that Derek's wrong?"

"By 3:00?" Stiles asks.

"There could be something in the bestiary."

"Oh, you mean the 900-page book written in Archaic Latin that none of us can read? Good luck with that."

Allison thinks for a moment. "Actually, I think I know someone who can translate it."

"Uh, I can talk to Derek, maybe convince him to give us a chance to prove it's not her." Scott offers. "But if anything happens, you guys let me and Y/n handle it, okay?"

"What does that mean?" Allison asked him.

"It means you can't heal like we do. I just don't want you getting hurt."

Allison gives him a look and digs in her bag, pulling out a small crossbow. "I can protect myself."

"Again, that's why you're my friend." Y/n praises her and she smiles back.

Scott still looks worried and she puts down the weapon. "What? Did something else happen?"

"I just don't want you getting hurt. Seriously, if anything goes wrong, you call me, okay? I-I don't care if your dad finds out. Call, text, scream, yell, whatever. I'll hear you and I'll find you as fast as I can." Allison gives him a tiny nod. "We have until 3:00." She nods more this time. He turns and walks to the door when a whistle of an arrow sounds, quickly turning back and catching the small arrow that nearly went into his head.

Y/n sighs and pinches the brigde of her nose. Allison turns and holds her hand out to Stiles. "Uh..." He hands her back the crossbow he had been examining curiously. "Sorry. It's a sensitive trigger on that."

Y/n and Stiles went with Lydia to the library to keep an eye on her while Allison went to the school counsler to see if she could try and translate the kanima pages. Scott went to talk with Derek on the field. Boyd was there with him. As Scott talked to Derek Erica and Isaac were heading for Lydia. Scott was hoping he could change Derek's mind, but he wasn't counting on it. Erica and Isaac go to the library only to find no Lydia. Y/n, Stiles, Allison, and Jackson were walking with Lydia down the halls, taking her to Scott's house under the pretense of a study group.

"If we're doing a study group, why didn't we just stay in the library?" She asked.

"Because we're meeting up with somebody else." Stiles answered.

"Hmm, well, why don't they just meet us in the library?"

"Oh, that would've been a great idea! Too late now."

"Okay, hold on-"

Y/n put an arm over her shoulders. "Scott's a strange guy, you know this. He works better in more comfortable settings like his home." Lydia huffs but doesn't argue any further. Stiles drives his Jeep with Y/n in the passenger, the other three managing to fit in the back.

When they got there Lydia had more questions. "If we're studying at Scott's house, then where's Scott?"

"He'll be here. Just running an errand I think."

"Thanks." Allison muttered to Jackson in helping escort Lydia out of school.

"I needed to talk to her anyway."

When they get inside Stiles locks the handle, deadbolt, and the chain on the door. Lydia gives him a questioning look. "Uh, there's been a few break-ins around the neighborhood." And then he put a chair under the handle for good measure. Another questioning look. "And a murder! Yeah, it was bad." Y/n pats him on the arm while Allison gestures for Jackson to take Lydia upstairs.

"Lydia, follow me. I need to talk to you for a minute."

She sighs. "Seriously? What is going on with everyone?" She mutters but still follows him. While they go upstairs, Stiles and Allison keep watch out the front while Y/n sits on the steps, ready to jump up and go wherever to protect her friends.

Y/n had her head in her hands, fingers raking through her hair as she waits. The sun starts to set. She picks her head up suddenly. "They're here." Allison and Stiles look at her and then look out the window. Sure enough, Derek and his Betas are standing across the street from the McCall house.

Allison dials Scott on Stiles' phone. "It's me."

"What's wrong?"

"You need to get here now. Right now."

"Okay, I'm leaving now. On my way."

More time passes and they keep checking to see where the werewolves are. Allison looks at her phone and taps a couple buttons. "What are you doing?" Stiles asks.

"I think... I think I have to call my dad."

"No, but if he finds you here-"

"You and Scott-" Y/n continues until Allison cuts them off.

"I know. But what are we supposed to do? They're not here to scare us, okay? They're here to kill Lydia."

Y/n gets up and stands next to her friend, putting a comforting hand on her arm. "Allison, I'm not gonna let anyone hurt her, okay? We'll be fine." She sighs and puts her phone away. Y/n then hears Lydia cry a bit, that alone enough to make her brow draw together, but she frowned when she felt a spark of something. Something other. But it was only for a moment and then it was gone.

"I got an idea. Just shoot one of 'em." Stiles whispers to Allison.

"Are you serious?" She whispers back.

"We told Scott we could protect ourselves, so let's do it. Or at least give it a shot, right?"

"Okay."

"Stiles, you guys don't need to prove anything." Y/n also whispers. "Just shooting them now could actually have negative consequences."

"Look, they don't think we're gonna fight, so if one of them gets hit, I guarantee they'll take off."

"I doubt it."

"It's worth a try. Just shoot one of 'em."

Allison peeks out the window. "Which one?"

"Uh... Derek. Yeah, shoot him, preferably in the head."

"If Scott was able to catch an arrow, Derek definitely can."

"Okay, uh, just shoot one of the other three then."

"You mean two."

"No, he means three." Y/n and Stiles look through a window to see only Isaac missing.

"Where the hell is Isaac?" He wonders. The three back up, Allison holding her bow up to the door.

Y/n senses him a moment too late. She turns just as Isaac grabs her by the neck and tosses her back towards the steps. He then disarms and knocks Allison aside. Next he smacks Stiles aside. His eyes glow and fangs show as he stares down at Stiles and then he lunges with a growl. Y/n winced as she pushed herself up. For the moment Stiles and Allison were holding their own against Isaac. Y/n raced up the stairs to check on Lydia. She found her just as she turned the corner.

"Lydia, get back." She said quietly. "Someone is trying to get in, okay? Just go hide in Scott's bathroom. I'll come for you when it's safe. Go. Lydia, go." She said more firmly and Lydia finally listened, running back into Scott's room where she noticed Jackson was missing. But the noises downstairs prompted her to go to the bathroom and hide as instructed, calling the police as she did. Y/n ran back down to take care of Isaac. She scooped up Allison's crossbow and pushed it into her hands. "Go watch Lydia." Allison nodded and did as instructed. Y/n used her magic to give her an extra boost as she grabbed Isaac and threw him back from Stiles. Isaac quickly got back up and growled at her. "That doesn't scare me."

Allison closed the door behind her and noticed the open window with venom on the sill. "Guys, it's here!" She called for them to hear. Erica kicked down the door and Allison pointed the bow at her, the laser pointing at her chest.

She scoffs. "Hmm... This might make me sound like kind of a bitch, but I've always wondered what it feels like to steal someone's boyfriend. I bet it's a pretty sick rush of power. I think I might try it with Scott." She chuckles. "You know what... I don't think it's gonna be that hard. Because why would he be waiting around to steal ten minutes with you when he can have me anytime he wants?" Allison shoots her arrow and Erica catches it as swiftly as Scott did.

She laughs. "You didn't really think that would work, did you?"

"Actually, I did." Erica looks down at her hand and finds that Allison had coated the arrow with kanima venom. Allison smirks as Erica shouts and falls onto her stomach, completely paralyzed. She steps over and crouches to hover her face over the blonde's. She moves a bit of her hair back. "I thought you were psychic... Bitch." She smiles and leaves Erica.

Derek and Boyd watch from outside, hearing furniture shifting and growling coming from inside. Derek smirks until the door opens and his Betas are tossed on the grass in front of him, knocked out and unable to move. He sighs and looks up when Scott steps onto his porch, Y/n, Allison, and Stiles with him. "I think I'm finally getting why you keep refusing me, Scott." Derek says. "You're not an Omega. You're already an Alpha of your own pack." He smiles. "But you know you can't beat me."

"Wanna test that?" Y/n glares, only backing down when Scott looks at her that he's got it.

"I can hold you off until the cops get here." Sirens are heard just after as the police draw near. Then a hissing and scurrying footsteps are heard catching everyone's attention. The four run off the porch to see the kanima on the roof. It screeches at them and runs off.

"Lydia." Y/n runs into the house for her friend.

Derek glances down to the teens at his feet. "Get them out of here." Derek instucts Boyd. But then everyone looks back towards the door as Y/n brings out a very upset looking Lydia.

"Would someone please tell me what the hell is going on?" Lydia sounds even more upset.

Scott looks towards where the kanima ran off. "It's Jackson."

~~~
Published: 2/10/21
Edited: 4/12/22

Double update because I have a plan and this is needed for it 😈☺️💙💜🖤 don't worry, it's a good plan, I promise.