A/N – Hello readers! First I want to say thank you for possibly being interested in reading my story. I'm a long time reader, first time poster. I had this idea for a Teen Wolf fic but since I've never posted anything, I just brushed the idea off. But it's been eating at me so I decided to give it a shot! I hope you like it, but be gentle if you don't.

DISCLAIMER: I don't own Teen wolf or more importantly Dylan O'Brien. *Sad face* Because let's face it he is God's gift to the world. Anyway, I don't own either, but I own my additions…aka Emily.

Derek's loft was still lit by the setting sun as he stood in front of Deaton. After Peter had tried to unleash Issac's memories, he had gotten a call from Scott. Apparently Deaton had something that he thought would help with the new alpha threat.

The whole crew was gathered in Derek's new loft. Deaton stood in front of them all, lecturing them about how they needed help. Derek of course had a smug look on his face, obviously thinking he was above the need of an outsider's assistance. Standing next to him was Issac. He was still visibly fatigued by the alpha attack and Peter's probing of his memories. Stiles stood close to Lydia. He had a suspicious look on his face at the thought of an unknown aid barging into their problems. Lydia still seemed confused at the whole situation. Scott stood in the middle of everyone, not knowing which side to stand on. He had never felt so torn. Allison stood off to a far side, not wanting to even be in the same room as the others.

"You all need as much help as you can get. This alpha pack is unlike anything you have ever faced. Now is not the time to be divided. You need to band together and fight as one if you have any hope of living through this situation" Deaton scolded.

Looks of doubt, suspicion, and anger flashed across the faces of the bunch in front of him.

"That is why you won't be able to do this alone. You are all too split to be focused. I've called somebody to help you survive these alphas. She may be the only one who can save your lives. And Derek, you actually know her. Come in, dear."

The crew was alerted to the sound of footsteps coming up the stairs. Derek immediately recognized the curvy, teen-aged girl with bouncing blonde curls. She strutted in wearing a leather jacket, her blue-gray eyes shining with curiosity. She looked every teen up and down with a smirk on her face.

"Emily?" Derek breathed out in disbelief. Emily spared him a brief glance and redirected her attention to Deaton

"This is who you've brought me in to help? This rag-tag team of misfits?" she asked in disbelief.

"Give them a chance – you don't know what they're capable of." Deaton defended.

"Oh I know exactly what they're capable of, Deaton. I can sense it. We have a beta who doesn't know his own strength, Derek the big bad alpha, and…I suppose an omega? An omega with potential? And over here we have the brooding huntress who doesn't have her facts straight, the town nut-job…"

She was cut off by Stiles' annoyed protests of the insult directed at Lydia. Emily took a closer look at the boy and narrowed her eyes. She could sense that there was something different about him, but didn't want to mention it.

"And you," she said looking at Stiles, "you are a special one, aren't you?"

"Woah, what? What is that supposed to mean? Are we really supposed to trust some whacko who just randomly shows up and gives some very stereotypical descriptions of us? I'm not buying one minute of it." Stiles exclaimed.

She gave him a smirk and glanced around the room to the others. Derek gave an impressed nod, clearly entertained by her observations. Allison was extremely confused, wondering about what she didn't know. The others look impressed and suspicious of the mysterious girl who shouldn't have known anything about them.

"So how do you know all of this about us?" Issac spoke up, intrigued.

Emily glanced at Deaton, who gave her a slight nod, urging her to explain.

"Well that's a rather long story, but let's just say I have…abilities" she said, waving her hand in the air.

"Care to elaborate? You seem very casual about that statement. This isn't exactly like you're just saying 'Oh I got my hair done' or 'Isn't my new outfit adorable?' Abilities could mean a lot of things" Stiles said in a girly voice.

She shot a glare in his direction before letting out a long sigh.

"Fine. I'll tell you but this stays between us. No one can find out about me. But you all seem fairly good at keeping your own secrets."

All eyes were on her as she prepared herself to tell a story that she hadn't uttered since she told the Hale family a decade prior. But even then, she hadn't told them the entire story.

"This new alpha pack has a leader. Some of you have met him already. Deucalion's ancestors had major history with my family. And me."

A few gasps were heard around the room and confusion flashed across everyone's face. Even Derek seemed confused at this confession. He had no idea what she was talking about.

"So that means…" Derek muttered.

"So that means even though I look like a 17 year old girl I am actually 320 years old. Guess I forgot to mention that part 10 years ago huh?"

"Oh that's just not right." Stiles said as he made a disgusted face.

"Keep pushing my buttons dude and you're going to regret it" she sneered at him. He visible took a step back.

"My family was never involved in the Salem Witch Trials. Could you imagine how cliché that would be? However, there was a different event that was left out of the history books. In the late 1600s there was a war going on between werewolves and witches. My mother tried to tell the townspeople about the werewolves. She tried to warn them, but they just thought she was crazy. So they killed her. She was trying to protect them, but they murdered her. She and I were the only ones left in our family. Without her, I had nobody. After she died, she her rage remained in the town, manifesting itself into dark energy. That's how I became cursed."

By now Emily was becoming visibly angered by the story. She hadn't told anyone about what happened in so long, and she had never told anybody the details of her past. All the Hale family knew was that she was a witch who was cursed.

"What do you mean, cursed?" Scott questioned.

"I was sentenced to a life of protecting those in need. Since my mom was trying to protect the people and she didn't succeed, I now have to live my life doing the same."

The group looked incredibly confused at the story. They all stared at her, wondering if she was simply making the whole thing up.

"But that doesn't explain why…" Stiles tried to ask before Emily quickly cut him off.

"Why I have lived so long? Why I can help with Deucalion? My, oh my aren't you a curious one? I'm getting to it" she interrupted.

Stiles shot her a glare. He was progressively getting more and more annoyed with the girl.

"Another consequence of the curse is that I can never die. Not until my work is done and I kill the last of the bloodline. Deucalion. But once I kill him, the curse will be broken and I can live the rest of my life."

"But that doesn't sound like that bad of a deal…You get to live forever!" Issac exclaimed.

"No. That's not how it works. I supposed it would be better to put it as I never stay dead. I can still die. I still feel the pain and crushing fear of the whole situation, but I am never granted the peace. I'm never allowed to finally just let go and be reunited with everyone in my life I have ever cared about and buried. I am trapped in darkness, and then jerked back to life by the curse. Any fatal wounds would be healed, but I would feel the effects for days afterwards. It is pure hell every single time."

Unknowingly, Emily had been rubbing her side as she spoke of the horrors she had gone through. The group noticed, but didn't understand. Only Derek knew that she had a massive, intricate scar on her side, but had no idea what it was from. He was starting to realize that there was so much about her that he didn't know.

"Why didn't you ever tell me all of that? Did Cora know? Did anyone know?" he whispered in confusion.

"Cora eventually found out. I'm surprised she didn't tell you everything" she said in a shocked voice.

"So how do you two know each other?" Scott questioned Emily and Derek.

"I was friends with his family before the fire. I had stumbled onto their property one day after a run in with a car and they helped heal me. They obviously didn't know it would have just been easier to let me die and come back, but I didn't want to reveal my secret. Once they found out I was alone in life, they took me in and his little sister became my best friend."

"Ok so let me get this straight" said Stiles. "You are like a 300 year old witch who is cursed and has to protect people and when you die you have to come back to life so you can protect more people until you finally kill the werewolf whose family started this whole fiasco then you can finally live happily ever after and die like a normal person?" he said in one breath.

"To sum it up, yes. I've been after Deucalion for centuries but he has been very good at covering his tracks. Until now." Emily explained. She was starting to wonder if helping them truly was the best idea. She looked at Deaton for any encouragement, but he simply nodded, urging her on.

"I do have powers, being a witch and all. But I feel like that is something to be described at another time. But I just advise you to stay on my good side and you won't have to experience them personally" she said as she sent a wink in Stiles' direction. The teen looked taken aback, and glared at her.

A long pause of silence settled around the room as everyone absorbed her story. She looked around the room to Derek who had a stony expression on his face. He was obviously not happy about being kept in the dark about her secret. She gave him a shrug. There was nothing she could say to him to make him realize it was better that he didn't know.

"So this is who's going to help you. I know it is a lot to take in right now, but you have to trust her. She has powers that you can't imagine. Powers that will help you fight the alphas and survive." Deaton lectured the group, looking each in the eye for emphasis.

"There is one requirement that I expect you all to uphold. When it comes down to the final moment, and it will I promise you that, I will be the one to kill Deucalion. He's mine."