Your Poison Run's Through My Vein's

Summary: Isabella Potter and her brother Harry Potter have been inseparable all their life and were beyond happy to be accepted into Hogwarts, but what will happen when one day Isabella comes across a mysterious diary and finds herself drawn to a forbidden world.

Twilight and Harry Potter crossover

Pairing: Tom Riddle and Bella Swan

Authors note: Hey guys I've just cooked up this idea while I was watching the harry potter and thought I would see how it goes. This story takes place in the Chamber of Secrets and Bella has never met the Cullen's in this story. I don't own twilight or Harry potter.

Chapter 1 - Introduction

BPOV

Hi my name is Isabella Potter, daughter to Lily and James Potter and twin sister to Harry Potter. When my brother and I were babies our parent's lives were taken by the one and only lord Voldemort, he had brutally murdered our parents by using a forbidden curse. He had attempted to kill both Harry and I, but for some reason he left us alive and in the process left us each with a scar, Harry's looked like the letter 'N' carved on his forehead and mine was a little snake that was on my lower left arm.

Since that night Harry and I were taken in by a family known as the Dursley's and let's just say that they weren't the world's most perfect family. I hated them because my uncle Vernon and aunt Pertunia would always treat Harry and I like slaves and made us both sleep in the cupboard under the stairs, and Dudley was even worse, the pig never stops eating. Just before our eleventh birthday Harry and I both received letters from Hogwarts School of witch craft and wizardry, but before we had a chance to read them uncle Vernon stopped us but the letters just kept on coming.

He then moved us away so no more letters could reach us, but his plan failed as a tall man called Hagrid found us and explained how I was a witch and Harry was a wizard and told us if we went to Hogwarts we would study all types of magic and explore our own powers, we accepted of coarse. Hagrid then took us to Diagon Alley where we got our stuff for school with the large amount of money that mum and dad had left us. As a birthday present Hagrid bought us both owls, Harry got a white owl that he named Hedwig and I got a beautiful black owl that I called Midnight.

Hagrid then took us to the train station where he told us to find platform nine and three quarters which was an impossible mission at first until we over heard and saw a red headed family running through a brick wall. With some help and confidence from mother of the family we passed through the wall and were then on the platform where the Hogwarts Express awaited. On the train journey to Hogwarts myself and Harry made friends with a boy called Ronald Weasley, he was very funny yet weird in a way and soon enough we met a girl called Hermione Granger who seemed like an annoying little know it all, but she was ok.

Once we arrived at the school I took the time to admire how beautiful the castle was before we met up with a teacher called Professor McGonagall and after she greeted the first years she disappeared for a minute and in that time a boy named Draco Malfoy who was nothing but a bully in my eyes tried to get both Harry and I to join his gang, but to his disappointment we declined his offer.

As we then moved into the main hall where all the students and teachers were all waiting for us the head master professor Dumbledore made a speech before he used the sorting hat to place us into the right houses. Ron and Hermione got into Gryffindor, which was the best house, Malfoy unsurprisingly got into Slytherin and Harry managed to into Gryffindor, which I was truly proud of him for.

It was then my turn and to mine and everyone else's great shock I was placed in Slytherin, I remember thinking that there had to be some mistake and that I belonged in Griffindoor with my brother.

Afterwards I tried talking to Harry but shockingly he had ignored me and I didn't understand why. So I tried again and again to talk to him but each time he had just brushed me off like dirt on his shoulder and this had truly hurt me. It wasn't till after his first Quiditch game that he had really pushed me away for good.

Flashback

I was running towards my brother to congratulate him on winning the Quiditch match, I caught him just in time as he and the rest of the Gryffindors were about to enter their common room.

"Harry!" I yelled but he probably didn't hear me because all the Gryffindors were praising my brother and shouting out in victory. So I tried again, "Harry!" I yelled and this time he and the other Gryffindors turned to look at me.

"What do you want?" Harry asked and I was hurt by his bitterness.

"I just came to congratulate you on winning the game" I said feeling a bit awkward due to all the Gryffindors giving me weird looks that I did my best to ignore.

"Well thanks you can go now" he said turning away from me, but I wasn't letting him go again, this time he would talk to me.

"Harry please! What have I done to upset you? Why won't you talk to me?" I asked stopping him in his tracks.

"You really want to know?" Harry asked and I nodded my head. "It's because you're an enemy" he said and I was taken back by that statement.

"Harry I'm not evil and I'm defiantly not your enemy" I said trying to make him believe me but he didn't give up.

"Well if that's true then why were you placed in Slytherin?" he asked and I couldn't give him and answer because I didn't know have one.

"I don't know, maybe the sorting hat got it wrong. But I swear to you Harry I'm not your enemy" I pleaded with him and I heard some of the Gryffindors scoff.

"Or maybe the hat found something in you that has been well hidden until now" Harry said and I shook my head in denial, he was about to turn away again when I stopped him again.

"Harry please don't do this! You're still my brother!" I cried out not wanting to loose him, but the next words that came out of his mouth shook me up inside.

"I'm not your brother! And you're not my sister!" Harry yelled and with those words said I felt my heartbreak into a million pieces as I watched as Harry and the rest of the Gryffindors entered their common room leaving me alone on the stairs with tears running down my face. I couldn't believe it, my brother had turned his back on me completely, and I was now more alone than ever.

End of flashback

And that's how Harry and I parted ways, ironic isn't it? We were once so close and now I was nothing but dirt under his shoes. One day I was caught crying in the west tower by Draco, he asked me what was wrong and I told him everything. After listening to my sob story of my brothers betrayal to my surprise Draco had comforted me and told me I didn't need my brother and that he would be my friend if I let him.

So from that point on I decided to give Draco a chance and shockingly we got on rather well, infact within a few weeks Draco had become the bestest friend and brother I ever had. He introduced me to all his friends who soon became family as well, especially Crab and Goyle, they maybe idiots but they were my two idiot brothers that made me laugh.

When first year was over and Harry and I returned to the Dursleys he still had no intention of speaking to me.

I woke up one night to feel a burning sensation on my arm, as I looked to see what the problem was I got quite a shock when I saw that my scar was glowing a bright red, but after a minute it stopped. And from that moment on all I could think about was why this was happening and what it meant.

Authors note: So what do guys think? Should I continue? Leave your reviews.