3.

Her eyes widened with curiosity, looking over at Derek's finely sculpted back. She was speechless. She looked at Scott before she spoke.

"Scott, its time to go." She said starting to walk towards the door.

"Sarah" he started to say, and then she turned towards him and let out a low growl. Scott was slightly taken aback, but agreed and followed her to the door.

"Scott?" Derek said. As he opened the door to leave.

"I will talk to her." Scott replied softly with a nod.

Derek nodded back.

Scott and Sarah got into the car, and there was silence. Scott noticed a small tear run down his sister's cheek.

"I'm sorry, I know that's not what you were expecting to find out." He said apologetically.

"Its not what I found out today, it's the fact that I understand now. Laura told me that Alpha's are the only member of pack that can take a mate, and are also the only ones who imprint on their mate." She responded with a sad look on her face.

Scott looked a little confused. There was a pause. "Sarah?" Scott put his hand on her shoulder. Sarah looked over at her brother.

"Scott, I felt it, the imprint. I can't explain the feeling, but it's there, and its amazing." She said with a smile.

Scott looked over at her with wide eyes. He wasn't really sure of what to say.

"Don't worry Sarah, it will all work out for the best. I know Derek seems like a rough and tough guy but I know deep down, like way deep down there is a part that really cares, even if he forgets to show it. He is strong, not the brightest bulb in the box, but he will protect and keep you safe." He said trying to remain serious.

Sarah looked up at him with a smirk. "Thanks, lets go home now." She suggested.

As they pulled into the parking lot at her school Scott received a text from Allison.

It read:

Scott, my Aunt Kate is back, and bitter with vengeance, please stay inside tonight. Love Allison.

Scott looked really concerned.

"What is it Scott?" She asked him, she could sense fear in his face.

"Do you remember me telling you that Allison's family were hunters? Sarah nodded. "Well her aunt is back in town, and well lets just say that is not good news. Allison says we need to stay inside tonight."

"Trust me, that is not a problem." She said calmly.

The next day came all too quickly for Sarah, she woke with a start, sweat pouring down her face. Just a bad dream she though to herself. She showered, got dressed and headed to class. Tonight was the full moon an all to familiar feeling crept through her body, the uneasiness, the intensity, all of her senses being even more heightened and the fear. No two full moons are ever the same, and each brings its own story.

Class seemed to fly by and she got into her car and went to the gas station first before going to pick up her mom from work.

She was at the tank getting ready to pay, when she noticed a black SUV slide in behind her. A young woman stepped out, and glanced over at Sarah. Sarah knew immediately it was Kate, the same woman whom she had a run in with 3 months earlier in San Diego. Her body froze, hoping she wouldn't recognize her. She finished filling up and quickly went to get back in her car when she felt an excruciating pain in her side. Sarah felt a burning pain that was like no other she had ever felt. She then heard a woman speak.

"Hi Sarah, did you miss me?" Kate asked as she held the knife at her side. She pulled the knife out, and walked back to her SUV and drove away.

Sarah clutched her side and managed to get back in her car, and drive to Scott's school. She called him on his cell, no answer.

Meanwhile back at Derek and Peter's house, they were watching old home videos of when he had his family before the fire. Derek stopped the movie abruptly, and stood up, he sensed something was wrong.

"Derek?" Asked Peter in a worried tone. "What's wrong?"

"I don't know, something just isn't right. I have this feeling," He explained.

Peter knew that when an Alpha imprints they always sense when something bad has happened, or is about the happen.

"I will be back." Derek said grabbing his keys and walking briskly out the door.

Sarah's pain was becoming more intense almost to the point where she could not control herself, and he eyes kept shifting back and forth. Scott was not answering his phone.

"Just my luck." She thought.

"Scott, isn't that Sarah's car?" Stiles asked with curiosity.

Scott looked over and saw Sarah sitting in her car. He sensed something was very wrong. He ran over to the car, at the same time Derek pulled into the parking lot.

They both got to her at the same time.

"Sarah! Oh my god, what happened?" Scott asked looking at her wound that was not healing well.

"It was Kate she ambushed me at the gas station." She was breathing heavily.

"Scott we need to get her to your boss, she does not look well." He said with his voice full of concern. Derek carefully picked her up and brought her to his car. She was in so much pain, but when Derek held her it was the best feeling in the world, she felt safe. They all got into the car, and sped off to Scott's work.

"Scott, please this hurts so much." She winced holding his hand. He was scared for his sister; he didn't know what was going to happen.

Derek drove as fast as he could, and they finally reached Scott's work. Derek picked her up and brought her inside.

"Dr. Deaton?" Scott yelled out.

He came quickly out from the back room. He knew something was wrong when he saw Derek holding Sarah.

"Scott, Derek, what happened? He asked. "Here put her here" He said pointing to the exam table.

"Dr. Deaton, I want you to meet my sister, Sarah." Scott said with a small smile.

"Lets take a look at this wound." He said pulling back her shirt.

Sweat was pouring down her face, while Dr. Deaton went to work. Scott and Derek both stood there waiting and watching.

He cleaned the wound, bandaged it, and gave her an antibiotic. "Take this for five days, and then come back to see me." He instructed.

Derek and Scott both went to help her of the table, but Derek backed off when he noticed she held Scott's arm first.

"Thank you." She said holding out her hand to shake his.

"Your welcome. Now please try and stay away from the Argents." He half-joked.

"I will stay away, I just can't promise you they will stay away from me. Kate doesn't like me very much."

"She doesn't like anybody" Derek smiled.

They all laughed.

"Are you going to be okay tonight? Derek asked.

"I don't know, I think the way my luck is going probably not." She replied.

"Come over, and stay with me?" He asked softly.

Sarah looked over at Scott. "Go, Stiles and I are hanging out, and we are really boring most of the time." Scott joked.

"Alright, lets go." Sarah smiled.

Dr. Deaton came out of the back room getting ready to close for the evening.

"Derek, can I have a word?" Derek paused. "Meet me in the car." He suggested handing her the keys.

She nodded.

"Derek, its about time you took a mate." He smiled. "Please keep her safe, God only know what Kate will do if she finds out about her." He began and Derek listened carefully. She is your life now Derek, she will help strengthen your pack, defend you, love you, be loyal to you, and bring you new life. Please guard her with everything you have." He finished.

"Thank you, I will." Derek replied. He shook his hand and parted for the evening.