[Summary: She had been captive for years until the day he gave her the strength to break free. He was alone until he let her in. The thing he doesn't know it that she is his doom. She is his wolfs bane. Derek/OC

[A/N: This is my Teen Wolf OC story. It's also alternate universe, but I will keep the characters the same. Takes place after episode three. Reviews make me happy and a happy writer updates faster! Thank you.

Second A/N: Well, hello! This is wolfgal and I'm here to apologies for all the errors this story had and the fact I hadn't updated for over a year. So, being the people pleaser I am, I have revamped Wolf's Bane just for you! And if you like this story, I highly sugest you check out my baby, Biting the Silver Bullet. Until then, please enjoy.

Disclaimer: I own nothing but Zeva and the idea of Bloodhounds. ]

Wolf's Bane

By wolfgal97

Prologue

Her plan was coming together, after all these years. It had all started for me years ago when the house burned down. The day that my life had ended and Number Thirteen's life had begun. Now, here I stood next to a hunter's car as she got inside, waiting to be given permission to join her.

Finally, she commanded me to get in, and being the good little broken creature I am, I obeyed without hesitation. I slipped my small, skinny form into the black leather seat as a hunter closed the door behind me. I sat up strait, trying to give my hands, which were cuffed behind my back, a little room so that they didn't get crunched.

I could feel her green eyes watching me, and I averted her gaze. I had learned a long time ago that I wasn't supposed to look this woman in the eyes. I had been told countless times that I wasn't good enough. Still, even though I'd been beyond destroyed over the years, something in me wanted to defy this woman.

I knew what she was doing. She was observing me, thinking about how different I looked. I had gone from living in a dark, cold cell for years with nothing but pain and fear as my constant companions to having been cleaned up and given a new haircut.

Over the years, my hair hair had been long and shaggy, full of tangles and knots. Now, It had been washed, brushed, and styled nicely. It came to my shoulders in fiery red layers that burned like embers in the sunlight.

Sunlight. Today was one of the few times over the past seven years that I'd seen it. It warmed me in a way that I'd long forgotten possible. It showed me how pale my skin was.

At least my skin was free of bruises and contusions. The woman next to me had been careful to not lash out at me for over a weak now, allowing my to heal physically almost completely. I noticed in the car mirror's reflection that even my scar, which ran from my eye to the top of my high cheekbone, had faded.

Healing mentally? That was another story entirely.

She began to drive.

The woman next to me cleared her throat as if she was annoyed. I flinched, wondering if I'd done anything wrong that would result badly for me. My flight-or-fight was starting to kick in, but I had learned how to push it away years ago. It was like the way I'd used to be quick-tongued and rebellious. I'd even tried to run away from all of this, once, with a few others of my kind. Even though we all knew the rule of what would happen if we were caught.

If you try to run, you will be hunted down like the animal you are, you will be found, and you will end up with a bullet in your skull.

For everyone but me, this rule had been true. For some reason, I had lived. To this day, I hadn't decided as to wether that was a good thing or not.

"Number Thirteen, you know your mission and what you must do, correct?" the blond woman quizzed me.

I nodded in response, making sure to not speak. I knew my place here. I knew the rule to not speak until spoken to.

"You'll find who the new werewolf is at Beacon Hills High School. We know that it is a boy. Now all you have to do is find out who it is. You'll befriend him and get him to tell you anything. Gain his trust. Tell him about yourself, and he'll trust you. Do whatever it takes to get to him," she instructed.

I nodded again, keeping my eyes closed so she couldn't see how much this was going to hurt me to do. A wolf is a loyal creature. To go against that is almost physically painful. And she knew this. She didn't care. In fact, she would be glad if I suffered.

"I want to know everything. What does he know about what he is? Are there any others of his kind around here, and if so, who are they and how many are there? You will report back to me at eleven o'clock every night. If you don't, I will find you, and you will die. The process will start over and a new Bloodhound will be chosen from a new group. Do you want another of your kind to suffer like you?"

I wanted to tell her no. I wanted to actually tell her where she could stick her stupid plans. But that wasn't an option. I had been broken down so much over the years, the fight and the confidence in me had long been destroyed. I shook my head, letting her threats were unnecessary.

"It shouldn't be that hard. Flirt with him, take his heart. Teen boys are all thinking about one thing. Make him like you. From what I've heard, he wouldn't be the first monster to fall for you," she said darkly.

I couldn't control it. A growl ripped forth from my raw throat. It rippled through the car, shaking it's whole frame. I had been almost completely silent for a year now and the primal sound came out much louder than I thought it would.

The woman was quiet for a moment, surprised at my small outburst. To be honest, I was surprised as well. Though I knew better, the animal inside me had taken control for a second when he was mentioned.

"I'm sorry, were you saying something, pet? Go a head. Speak."

It was a challenge. I knew that if I actually said anything, there would be painful repercussions. Instead, I fought the wold back down, feeling my eyes change from a bright green back to the dark brown, almost back of my human visage.

"This isn't freedom. You're not going to school to learn or to make new friends. I don't care about you, and if they knew what you were, they wouldn't either. In fact, they would hate you, just like me," she prodded. "All I want from you is to get me the wolf boy. You give me that, and I might let you go. Understand me? You could go chase whatever stupid, selfish dream you have. You could even go find him, if that's what you want."

She parked the car on the edge of the street a few buildings down from the school. She then released the cuffs from my wrists as she spoke.

"You may use your name that you had before you became a Bloodhound. But always remember, you are not one of them anymore. They wouldn't accept you if they knew what you now are. Humans, or werewolves alike. You are mine. I own you. And you will be back to base by eleven, or I'll kill you. Do you understand? Speak."

I opened my eyes, seeing how blue the sky was. For a moment, I prayed I could turn into a bird and fly far away where nothing could touch me. But nothing happened. I was still a destroyed creature in the body of a teenage girl. I was doomed.

"Yes, Kate. I understand."