AN: I don't own MI High or anything else you may recognise. I just own Demi, AJ, Patterson, Amy and David. Oh, and I'm taking the advice of MIHighandAlexRider4eva, and I'm going to make my chapters as long as possible in future! Thank you for commenting and continuing to read my story! Next chapter I'm hoping to begin episode 9 of the TV show, so look forward to that!

Demi's POV

"She's my half-sister. I have a half-sister. Cool." I quietly said, but then I remembered what had been said. "Amy knows where she is. She's in danger." I muttered, throwing the folder down on my bed. Grabbing my jacket, I ran downstairs, leaving behind a very confused Tom. I ran out of the door, running to the address from the file. Please be here... I knocked on the door, as a very tired looking AJ came to the door. "Demi? What is it? It's 10am!" She sleepily said.

"You're in danger." I said, pushing into her house.

"What? Look, what's going on? Why are you in my house?" She cried, as I turned to her.

"We have the same mother. And if she's trying to kill me, then she's going to be after you too." I said, biting my lip.

"Hang on. Who said that? My mother died in a car crash when I was 3." AJ said.

"I was told the same thing. Look, if you want me to go, then I will. But if something happens, call me. Got it?" I asked.

"Sure. Now, I'm going back to bed. See ya." She said, going back upstairs. As I turned to leave, a woman appeared in the hallway smiling.

"Hello! Who are you?" She cheerily asked.

"I'm Demi, I'm a friend of AJ. Who are you?"

"Who's AJ? There's only one person in this house aside from me, and that's my daughter Francesca." She said, frowning.

"What? But I..." I trailed off, unbelievably confused. "Never mind. I'm going. Bye." I said, turning and leaving the house. I stood in the street for a while, thinking about what had just happened. Why would she lie about who she was? What was going on? As I sighed, and ran a hand through my hair, it began to rain. Great. I turned up my collar in a failed attempt to keep my hair dry, and began to walk home. As I turned the corner, I felt someone grab my waist, and force me against the wall. I recognised them as David. "W-W-What are you doing?" I stuttered out, as he silenced me by putting his hand over my mouth. He replaced his hand with his mouth, lightly kissing me. After he pulled away, he smiled gently at me. "Sorry, I had to do that. Demi, would you be my girlfriend?" He asked.

"No! I already have a boyfriend, who's gonna kill me for what just happened! Now, leave me alone!" I shouted, running off. Hopefully Tom wouldn't be too mad. I returned to my house, to find Tom stood in the hallway. "Hey. What's wrong?"

"I've changed my mind." I lied.

"About what?" Tom asked.

"Going out with you. It's just that, I don't think it'll work. And with everything that's going on, I don't want to be a relationship right now. I'm sorry." I said. I felt horrible for lying to him, but I thought it'd be the least amount of pain this way. "Oh." He sadly said, looking down. "That's fine. I'd better be going, bye Demi." He then walked out, leaving me to sit down on the stairs alone. As I shut my eyes, I felt someone grab my neck. I re-opened my eyes, and saw AJ holding a gun to my throat. "What are you doing? DAD!" I yelled, as she silenced me. "Shut it brat. Your father isn't here. And since you blew my cover, I'm going to have to kill you sooner then I hoped. My boss won't mind. He'll be glad that we've finally got rid of you, and then we'll go after your sister." She said, as I shut my eyes. Please don't be painful. Please. As the noise of a shot filled the house, I felt her grip loosen. I re-opened my eyes, and saw AJ lying on the stairs dead. I looked at the doorway, and saw a tall, familiar blonde stood blocking the light from outside.

"Finally she's shut up. I thought that'd never happen!" She remarked, offering me her hand. I took it, and she pulled me up. "You're welcome." She said, smiling.

"What are you doing here? I thought you were dead!" I said, wrapping my arms around her.

"Yeah, but death's boring. And I saw you needed my help. I figured I owed you. But on the upside, I'm back!" She said, hugging me back. "Did you miss me?"

"Yes." I said. She smiled.

"I missed you too Dems. Anyway, what did I miss?" She asked.

"Well..." I began. This was going to be a long story.

Unknown location.

"Damn it! Our agent is down." Amy furiously said, throwing the communicator across the room.

"Be calm Amy. We'll get our revenge on the London's eventually. And if our other agent isn't able to kill the brat, then I'll do it myself. I'll kill her, and that idiot Patterson." The figure in the shadows calmly replied, while stroking a photo of a woman. "I will get my revenge for you mother. One day." He coldly said, while Amy smirked.

"Brilliant."

AN: And I'm going to end it here! Thank you for reading! I hope you enjoyed! So, next chapter will be episode 9! Thank you again!