Stiles POV: "Did you drive here?" Stiles finally asked.

"Jackson did."

"Jackson's here too?" Scott asked.

"And Lydia. What's going on? Who sent this text?"

Then Allison's phone rang.

"Where are you?" she asked.

Then in walked Jackson and Lydia.

"Finally can we go now?" Lydia asked.

Above them it sounded like something heavy was walking. Stiles linked fingers with Selene.

"Run!" Scott yelled just before the Alpha fell through the ceiling. They ended up in the cafeteria.

"Help me get this in front of the door" Scott said.

Selene stood with Stiles shaking her head.

"Scott wait not here" Stiles said.

"What was that Scott what was that?" Allison asked.

"What came out of the ceiling?" asked Lydia.

"Will you just help me?" Scott growled.

"The chairs stack the chairs."

"Guys…can we just wait a second?" Stiles tried to get their attention.

"You guys listen to me… can we wait a second? Guys… Stiles talking can we hang on one second please?"

Then an ear splitting whistle made everyone wince.

"Stiles is trying to talk so all of you shut up" Selene said.

"Okay nice work really beautiful job everyone now... what should we do about the twenty foot wall of windows?"

"Can somebody please explain to me what's going on because I'm freaking out here" Allison begged.

"And I would like to know why" she turned to look at Scott.

"Somebody killed the janitor" Stiles said as Scott had a mini break down.

"What?" Lydia asked.

"Yeah the janitors dead."

"What's he talking about? Is this a joke?" Allison started to freak.

"What? Who? Killed him?" Jackson asked.

"No no no no no this was supposed to be over the mountain lion killed…" Lydia was having a meltdown.

"No don't you get it? There was no mountain lion" Jackson said.

Selene looked at him closely.

"Who was it? What does he want? What's happening? Scott!" Allison yelled.

"I don't know I just… if we go out there he's gonna kill us" Scott said.

"Us? He's gonna kill us?" Lydia asked.

Selene was standing with Stiles and rolled her eyes as the two girls freaked out.

"Who is it?" Allison asked.

She looked at Stiles for answers he just opened his mouth then looked away.

"It's Derek it's Derek Hale" Scott said.

Both Stiles and Selene gave Scott an are-you-kidding-me look.

"Derek killed the janitor?" Jackson asked.

"I saw him" Scott said.

"The mountain lion…" Lydia started.

"No! Derek killed them."

"All of them?" Allison asked.

"Yeah starting with his own sister."

"And the bus driver?" Allison asked.

"And the guy in the video store it's been Derek the whole time. He's in here with us. And if we don't get out now he's going to kill us too."

"Oh my god" Selene said softly in shocked horror at what Scott was saying.

"Call the cops" Jackson told Stiles.

"No" Stiles said.

"What do you mean 'no'?"

"I mean no you want to hear it in Spanish? No. Look Derek killed three people okay? We don't know what he's armed with" Stiles told him.

Selene grinned as he told off Jackson.

"Your dad is armed with an entire sheriff's department call him" Jackson demanded.

"I'm calling" Lydia said.

"No Lydia would you just hold on a second?" Stiles tried to stop her but Jackson grabbed him.

Selene POV: No sooner had Jackson done that then Selene punched him in the jaw.

"You touch him again and I'll put you on your ass" she stood between Scott and Stiles and everyone else.

Whatever they saw on her face no one said anything.

"Yes were at Beacon Hills High School we're trapped and we need you to… but… she hung up on me" Lydia said.

"The police hung up on you?" Allison asked.

"She said they got a tip warning them that there are gonna be prank calls about a break in at the high school she said if I called again that they're gonna trace it and have me arrested."

"Okay then call again" Allison said.

"No they won't trace a cell then they'll send a car to your house before they send anyone here" Stiles informed them.

"What the? What is this? Why does Derek wanna kill us? Why is he killing anyone?" Allison asked.

"Why's everyone looking at me?" Scott asked.

"Is he the one that sent her the text?" Lydia asked.

"No I mean I don't know."

"Is he the one that called the police?" Allison asked.

"I don't know!" Scott told them all.

"All right why don't we ease back on the throttle here yeah" Stiles said.

Stiles pulled Scott and Selene away from the others. Selene was slowly getting a headache.

"Okay first off throwing Derek under the bus nicely done" Stiles said.

"I didn't know what to say I had to say something and if he's dead then it doesn't matter right? Oh god I totally just bit her head off" Scott said.

"And she'll totally get over it bigger issue at hand here like how do we get out alive?"

"If Derek's alive then he'll be pissed… and probably kick the crap outta you" Selene said.

"We'll deal with Derek IF he's alive. But for now we are alive it could've killed us already it's like it's cornering us or something."

"So what he wants to eat us all at the same time?"

"It won't eat us just kill us" Selene said then shrugged when they both stared at her.

Scott shook his head. "No Derek said it wants revenge"

"Against who?"

"Allison's family?"

"Maybe that's what the text was about. Someone had to send it."

"Okay assheads new plan. Stiles calls his useless dad and tells him to send someone with a gun and decent aim. Are we good with that?" Jackson said.

Selene glared at him for the insult.

"He's right. Tell him the truth if you have to just call him" Scott said.

"I'm not watching my dad get eaten alive" Stiles said softly to Scott.

"Alright give me the phone" Jackson said grabbing Stiles who turned around and punched him.

"I believe you were told not to touch me" Stiles said.

Then he pulled out his phone. "Dad hey it's me… And it's your voice mail. Look I need you to call me back now like right now we're at the school dad we're at the school."

Then the Alpha tried to break in.

"The kitchen the door out of the kitchen leads to the stairwell" Stiles said.

"Which only goes up" Scott said.

"Up is better than here" Stiles replied.

They ran up the stairs and into one of the unlocked chem rooms.

"Jackson how many people can fit in your car?" Scott asked.

"Five if someone squeezes on someone's lap."

"Five? I barely fit in the back" Allison said.

"It doesn't matter there's no getting out without drawing attention" Stiles said.

"What about this? This leads to the roof we can go down the fire escape to the parking lot in like seconds" Scott said.

"That's a deadbolt" Stiles pointed out.

"If you break that saying you even COULD break it they'll see you do it" Selene said softly.

"The janitor has a key" Scott said.

"You mean his body has it" Stiles replied.

"I can get it I can find him by scent by blood."

"Well gee that sounds like an incredibly terrible idea what else you got?" Stiles asked.

"Scott if the Alpha gets you you will either kill us all or he will kill you you know that right?" Selene said softly.

"I'm getting the key."

"Are you serious?" Allison asked.

"Well it's the best plan. Someone has to get the key if we want to get outta here."

"You can't go out there unarmed." Scott grabbed the teachers pointing stick.

"Well it's better than nothing."

"There's gotta be something else" Stiles said.

"There is" Lydia pointed to the chemicals.

"What are we gonna do throw acid on him?" Stiles asked.

"No like a firebomb in there is everything you need to make a self-igniting Molotov cocktail" Lydia said.

"Self-igniting…" Stiles asked.

"Molotov cocktail. What I read it somewhere" Lydia said when everyone looked at her.

"We don't have a key for that either" Stiles said.

Jackson broke the glass.

"Jackson hand me the sulfuric acid" Lydia asked as she made the cocktail.

Once done Lydia handed it to Scott.

"No no this is insane you can't do this you cannot go out there" Allison said.

"We can't just sit here waiting for Stiles' dad to check his messages" Scott said.

"You could die don't you get that he's killed three people."

"And we're next somebody has to do something."

"Scott just stop. Do you remember when you told me you knew whether or not I was lying? That I had a tell well so do you you're a horrible liar and you've been lying all night. Just please don't go please don't leave us" Allison begged.

"Lock it behind me" Scott told Stiles.

Allison kissed him before he left.

"I don't get this I don't get why he's out there and why he left us and I can't get me hands to stop shaking" Allison said freaking out.

"It's okay it's gonna be okay" Jackson said taking her hands.

"Jackson you handed me the sulfuric acid right? It has to be sulfuric acid it won't ignite if it's not" Lydia said.

"I gave you exactly what you asked for didn't I?"

Selene watched Jackson closely as he said it.

"Yeah yeah I'm sure you did" Lydia assured herself.

All of a sudden a monstrous howl filled the air and Jackson fell in pain screaming.

"No I'm fine like seriously I'm okay" he said after a few seconds.

"That didn't sound okay at all" Allison said.

"What's on the back of your neck?" Stiles asked.

Selene gave a look of surprise after he said that.

"It's been there for days he won't tell me what happened" Lydia said.

"As if you actually care."

"All right can we not argue for half a second here?" Stiles asked.

"Where's Scott he should be back by now."

At the door there was a metallic clink.

"Scott Scott!" Allison screamed.

"Where's he going?" Lydia asked.

Outside sirens wailed. Finally it was over.

"Thank god" Selene said not sure how much longer she could take the girls whining.

"You're sure it was Derek Hale?" Stiles' dad asked once they were out of the school.

"Yes."

"I saw him too" Scott and Stiles said.

"What about the janitor?" Scott asked.

"We're still looking."

"Did you check under the bleachers? Under them?"

"Yes Scott we looked we pulled them out just like you asked there's nothing."

"I'm not making this up."

"I know I believe you."

"No you don't you have this look like you feel bad for me like you wanna believe me but I know you don't"

"Listen we're gonna search this whole school we're gonna find him okay I promise" he walked off.

"Well we survived dude you know? We outlasted the Alpha it's still good right? Being alive?" Stiles said.

"When we we're in the chemistry room he walked right past us you don't think that it heard us? You don't think it knew exactly where we were?"

"Well then how come we're still alive?"

"It wants me in its pack but I think first I have to get rid of my old pack."

"What do you mean? What old pack?"

"Allison Jackson Lydia Selene you."

"The Alpha doesn't wanna kill us."

"It wants me to do it and that's not even the worst part."

"Holy hell Scott how is that not the worst part?"

"Because he made me shift I wanted to do it I wanted to kill you all of you."

"The fact that you didn't shows how strong you are Scott. Now you'll either have to be part of the Alpha's pack or you'll be too big of a threat he'll just kill you" Selene said.

Then they walked over to Scott boss at an ambulance.

"There you are." Deaton said.

"How did you…?" Scott asked.

"Get out? Not easily and from what they tell me I'm alive because of you I think I owe you a raise."

Scott ran off after Allison and Stiles went with his dad. Selene left silently and went home.

"You almost gave up your secret tonight he almost saw" Derek said waiting.

"I know I handled it but… it was close but they cannot find out he cannot find out."

"Stay here Derek and heal. Let me handle this let me do my job."

And he went to a spare room silently leaving Selene alone in the dark.