Disclaimer: I don't own either Harry Potter or Twilight; I just like to mess around with their characters and my own ideas.

Summery: What if Harry Potter wasn't the only child of Lilly and James? What if he has a twin sister, and said twin could bring back one person from the dead every year? What if everyone knew of her? Alive! Sirius; Manipulative! Dumbledore, Ron bashing. Set after OOTP. Eventual events link onto Twilight, but all vampires in this story are as the legends say, except the walking around in the day; fangs and all.

Rating: M for language, abuse, self harm, dark humour, and saucy situations.

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'Thought'

'Speech'

*Parsletoungue*

Chapter 1: separation

Dumbledore sat in his office thinking; all was well in his little world, his weapon believed every word he said, said weapon was still under his thumb and was currently living with his muggle relatives. Yes everything was perfect for him . . . . . for the time being.

. . . . . .

'BOY, GET DOWN HERE NOW!' a man yelled.

A boy jolted upright in his bed, grabbing his glasses and shoving them on his face and running out his bedroom door; if you would call it a bedroom. The small window had bars enclosing the occupant from the outside; eight locks lined the outer side of the door, this was no bedroom; this was a prison cell.

The boy made his way down stairs to face his uncle, some of the chores had not been completed and he knew what was coming to him. The second his foot hit the floor of the entrance hall, the boys' uncle hit him into the wall beside him.

'Here we go again' the boy thought as his uncle continuously threw punches to his ribs, stomach and face. Doubling over in pain from a well placed punch to the gut, the boy didn't even process when a foot connected with the side of his head.

This boy didn't deserve this treatment; he was Harry Potter for god's sake, the saviour of the Wizarding and muggle world. But that name didn't matter here; here he was nothing but a tool of frustration and a slave.

The beatings his uncle gave him grew more violent with every passing day and this time was no different. Vernon Dursley continued to beat his nephew until he was unconscious.

'THAT SHOULD TEACH YOU TO FINNISH YOUR CHORES YOU FILTHY LITTLE FREAK' Vernon bellowed as he walked into the lounge room to watch TV.

A few minutes later; Harry picked himself up off of the floor and hobbled back up stairs. Tears streaked his face. He wanted to just die; everyone he loved and cared for were so why not him?

He walked over to his trunk and opened it, shifting his quidditch uniform and uncovering an intricately carved dagger. He had taken this dagger from Sirius's house after the ministry battle, after his death. Tears fell more freely as Harry thought of Sirius; he died because Harry couldn't tell the difference between hallucination and reality.

He wiped his face of tears and sat in the centre of his 'cell'; he called all of his Gryffindor courage to do this and once he was calm enough, he slid the dagger across both of his wrists. Blood flowed freely onto the grey carpet and pooled around his slumping body; Harry could barely see strait because of the rapid blood loss and began to feel cold. He fell to his side with a small smile on his face; soon he would be with his family.

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In a large mansion far from everywhere two teenagers woke with a horrible start. A blond boy and a raven haired girl jumped from their beds and flew out their doors and down winding halls until they found who they where looking for.

'Draco, Rin; what are you doing out of bed at this hour?' Lucius Malfoy inquired; slightly worried at the speed they had barged into the library in.

Two women rose from where they were sitting and moved to each of the teens. Narcissa held her son close and stroked his hair, trying to calm his nerves. She looked at her son then to the other teen, worry marred her beautiful features. The other woman held her daughter; she whispered soothing words to her as she cried. She pulled her over to where she was earlier and pulled her beloved daughter into her lap.

'Rin; sweetheart? What's the matter? What has you like this?' the woman asked, stroking her daughters long black hair.

'It's h-him mum. H-he's hurt h-him s-self' Rin managed to choke out between sobs.

Rin clung to her mother and cried into her shoulder; her mother looked to Lucius and Narcissa, they both nodded and she pulled her daughter back a few inches.

'Rin, listen to me. Lucius and I are going to go and get him. We're going to save him, ok?' she asked.

Rin nodded and whipped the tears from her eyes. Her mother placed her on the couch and walked towards the door when a voice stopped her.

'Lilly, don't go. Stay here with Rin, I'll get him.' The baritone voice rang from behind her.

'No Sev, I have to do this. My sister knew better than to treat my son this way and now I'll tell her so.' Lilly threw calmly over her shoulder. She turned to Severus and smiled lovingly; she knew he wanted to help but this was for her to do.

Severus nodded and walked over to Rin; sitting beside her and holding her tightly, comforting her.

Lilly and Lucius walked out into the hall and apparated to number 4 Privet Drive.

Once outside the house; Lilly could sense the life of her son and how fast it was leaving him; it sent her into a rage as she drew her wand and stalked up to the door. She knocked once.

Vernon got up and walked to the door but when he opened it he didn't expect to she her standing there with a wand pointed at him.

'Hello Vernon. Where's my son?' Lilly hissed as she thought of the many curses to fit her despicable brother-in-law.

'U-up stairs.' He stuttered in fear.

She lowered her wand and flew up the stairs, leaving Lucius with Vernon; adding more fear to the muggle.

Lilly checked every room on the second landing until she came to one that was covered in locks. She opened it slowly and screamed.

'LUCIUS!'

Lucius flew up and found Lilly on the floor holding Harry in her arms. They were surrounded by a pool of blood. He ran to her side and lifted the boy from her arms and apparated back to Malfoy Manor, leaving Lilly to get revenge.

She sat still for all of three seconds before she flew down stairs and pinned Vernon to the wall; Petunia walked out of the kitchen and froze at the sight of her sister, dropping the bowl she held.

'What right did you have to abuse my son?!' Lilly thundered, her usually calm demeanour gone and the raw rage surfaced.

'Lilly, don't do something that you'll regret –'Petunia was cut off.

A flash of orange light flew past her head and effectively silenced her. Lilly wasn't in the mood; her only son was so close to loosing his life and it was at the hands of people that were supposed to care for and love him.

A loud pop resounded behind her and Severus glared at both muggles before wrapping his arms around Lilly and pulled her to him. Petunia glared at him and shrieked.

'You!'

'Yes it's me. You have no idea of how much shit you're in; this isn't over.' He hissed between his teeth.

'Lilly, Lilly. You need to calm yourself and you need to do it now. Your children need you.' He whispered to the raging red headed woman in his arms.

Tears fell from Lilly's eyes as she nodded and calmed herself; she sent scathing looks to her sisters' family and strode out the front door. Severus caught up to her and held her close; comforting her.

They apparated back to Malfoy Manor and were met with the most unlikely of sights. The door to the room that Harry was brought to was shut and locked while healers worked to save him and guarding the door was Rin; that wasn't the kicker to the situation though. Posed in a threatening stance and growling at the girl was none other than Draco Malfoy.

Lilly tried not to laugh at the scene before her but she was quickly loosing that battle; Severus on the other hand stood shocked. Like him self; the Malfoy's where vampires, and this behaviour only showed in their kind if their soul mate was injured and being kept from them or if anyone tried to approach said mate.

'Draco, listen to me. Mother and I need to talk to Harry. You're not going in there until I say so.' Rin said with all authority she could muster, she, like her mother, was trying not to laugh at the blond.

'Rin! You can't keep a vampire from their mate! Are you trying to get yourself killed?' Severus stated with a look of horror.

'It doesn't matter if I die or not, professor; not like anyone would care.' Her voice was hardened but became a whisper at the end.

Hearing her daughter's words snapped Lilly out of her snickering fit. She locked eyes with her youngest and gasped.

The unchecked emotions that lay in Rin's eyes broke her heart. All of the sorrow, the pain, the loneliness; all of them shone in her emerald green eyes.

'Rin that is not true and you know it!' Lilly finally managed to get out.

Rin bowed her head; whispering something to the wind and both Draco and Severus saw the tear that fell. The doors behind her opened and the healers walked out. All but Rin looked at them and held their breaths.

'Harry is going to be fine; he should be awake in a few minutes.' The head healer provided.

Draco made for the door but Rin's magic blasted him back and held him against the wall; the young vampire looked at the girl and growled. Rin had yet to raise her head and tears still fell; Severus walked up to her, Lilly not far behind, and held her close while she cried. Draco felt her sadness through the barrier that held him and he whined to be released; he felt as though she were family and she was in pain, he needed to comfort her.

'Rin, people do care. Lucius, Narcissa, Draco, your mother and I all care about you. Even Harry-'Severus was cut off when Rin pulled away.

'Harry doesn't even know I exist! How could he care?' Rin hissed.

Lilly walked up to her and held her; 'Rin, he may not know you now but the second he does he will.'

She pulled away and grabbed her daughters hand and pulled her towards the door, Rin stopped at the frame and froze; what if he didn't like her? What if he thought she was insane?

Lilly pulled her through the door way and squeezed her hand to reassure her. She led her to the bedside and let her hand go, walking backward out of sight.

She began to wring her hands in worry as Harry began to stir. Looking at the boy when he fully opened his eyes did nothing for her nerves.

When Harry opened his eyes, he saw a girl sitting on the edge of the bed playing with her hands. The girl reminded him of Hermione; the way she held herself in her obvious nervousness. She looked at him and his heart skipped a beat; her eyes were the same as his.

'Hi Harry.' She said, nerves playing with her voice.

'Ummm, hi. H-how do you know my name? Where am I?' he replied, slightly wary.

The girl looked down at her hands; her shoulders seemed to sag as if she where sad. She sat like that for a few minutes before she answered.

'I-I know m-more than just your name Harry. As for where you are; you're at Malfoy Manor.'

Harry jumped about half a foot from the bed.

'Malfoy Manor?!' he shrieked.

The girl flinched away from him and nodded. Her actions seemed to shock him because he was suddenly calm and worried.

'What's your name and how do you know me?' he asked, worry and confusion streaked across his face.

'My name is Rin. Rin Lillian Potter; I'm your twin sister.' She said, not looking up.

Silence filled the room and Lilly almost walked out of the shadows right then and there; her son didn't believe his own sister and it showed. Rin looked up and saw the anger in her brother's face, as well as the disbelief and she knew what was going to come.

Tears welled up in her eyes as she looked back down.

'Do you think this is a joke?' Harry hissed.

'I have no living family; Voldimort saw to that, fifteen years ago.' Anger evident in his words.

Rin flinched, she felt his words and they hurt her. She turned to the shadows around the room and whispered loud enough for the only people in the room to hear.

'You lied mum; you lied.'

Harry looked at her as if she were crazy until he saw who walked out of the shadows.

Lilly Potter; she was supposed to be dead! She walked out of the corner and looked at her daughter, sadness written in her features.

'M-mum?' Harry was shocked and he couldn't believe his eyes.

'Rin, I-'Lilly flinched as her daughter jumped to her feet.

'YOU LIED!' Rin ran for the door before her mother could say any more.

She ran down halls, through doors and up stairs before she hit her destination; her room. She slammed the French double doors open then shut again before collapsing on her bed, sobbing her eyes out.

Lilly turned to her eldest and a grim look shone in her eyes. Harry rubbed his and looked back at her, 'this has to be a dream' he thought.

'Harry, I know this is hard for you to hear after all these years but she tells the truth. And no, this isn't a dream, I'm really here.' She said as she sat next to him and stroked his cheek.

Severus ran through the door and looked at Lilly, Harry jumped to the defensive.

'What happened? One second we hear him shouting then she shouts and comes flying out the door the next.' He said as he looked at Lilly, worry evident.

'Harry didn't believe her and it was a knee-jerk reaction.' She sighed, patting Harry on the shoulder to calm him.

Harry thought over what was happening; Snape was talking to his mother, no glares or snarky comments were thrown his way and he sounded like he cares about the entire situation.

What was happening to the world!?

'Harry, love, you need to make this right; if not then she'll close herself off to everyone.' His mother looked as if she was going to cry.

His mum was really here, he had a twin sister; what else? He nodded his head in agreement and watched as Snape left the room.

'I thought Voldimort killed you and dad; how are you here?' he finally asked.

Lilly smiled lovingly at her son and moved a stray hair from his face; looking into his eyes, she answered.

'Rin has a rather uncanny knack for knowing the darkest and purest of magic; it's like it flows through her and stays within her. Once a year, your sister can bring one person back from the dead. She found my grave and brought me back last Christmas.'

'Does that mean that she can bring dad back?' his voice was full of curiosity.

Lilly's smile fell, she looked at her lap.

'Can she?' the curiosity peaked at his mum's actions.

'No, she can't bring James back. Well she can, but she wont.' Her voice was slightly pained.

'Why wont she?' shock entered his voice at the thought of his sister not wanting to bring their father back.

The doors opened and Snape stood behind Rin, she wasn't to happy.

'Because mum wasn't supposed to be with dad in the first place.' Venom laced Rin's every word.

Harry looked at her as if she had grown another head.

'What do you mean? Don't you want dad back?' he asked, a gobsmacked expression added to his words.

'What I mean, Harry, is that mum has a soul mate, like you and I do. James Potter was not that person. You can thank Albus Dumbledore for that historical fuck up.' She hissed.

Harry looked bewildered at his mother then his twin; silently asking thousands of questions. Lilly looked at her lap and Harry sighed.

'Rin, I'm sorry I didn't believe you. I was in shock, can you please forgive me?' he asked, pained by the scathing glare he received when he finished.

Rin stood there in the door way; glaring her brother down and nothing prepared her for the apology, so she glared harder. She weighed her options and decided to cave.

'Oh all right! You're forgiven, but if you do that again I'll do worse than what that Ginny Weasley can do.' She giggled.

Harry shot his head up and beamed at his sister; she returned the smile with one of her own and ran at him.

She pounced on him and hugged him tightly; not wanting to ever let go. Lilly laughed at her antics and joined in the hug, her family were together again, at long last.

Severus stood at the door and smirked, 'oh boy; we're gonna have three exceedingly happy teenagers for the rest of the summer.' He thought. Draco walked into the doorway and watched with an amused expression.

Harry became aware of the two in the doorway and froze. Rin pulled back and looked at him in confusion then looked at the door. She smiled.

'I see you've snapped back to reality.' Severus stated as he walked further into the room.

The deadly glare that Harry sent to his most hated professor faded when Rin slapped him in the back of the head. He rubbed his head, ignoring the growl that came from Malfoy and looked at his giggling twin.

'Leave mum's mate alone Harry or I'll sick yours onto you.' She ranted in a Mrs Weasley like way; hands planted in firm fists on her hips.

Harry took a moment to process that statement then nearly fell out of the bed; he was trying to reach the professor that sat in the chair next to the bed so he could throttle the man.

Rin looked pointedly at Draco and he leapt onto the bed and held Harry to his chest; effectively restraining the boy. Harry felt the arms of the other boy wrap around his waist, but he couldn't for the life of him fight him. It felt too right to fight his long time enemy. Rin burst into a fit of giggles and Harry found himself snuggling closer to Draco's side.

Lilly looked at the scene in happiness; all that was left to do was find her daughters mate and then everyone would be as happy. Severus held her hand and smiled, damn James for having these two children but now they could be his, as they should have been.

Rin suddenly snapped out of her giggles and her eyes glazed over. She sat as still as a statue before she began shaking her head rapidly; as if she was having a nightmare.

Harry jumped up and started to panic when his twin started screaming; her screams alerted Severus and Lilly as well as Lucius and Narcissa. Both elder Malfoy's ran into the room and began helping Lilly and Sev' calm the girl. Draco held Harry close as he worried.

Like Harry, the night that their parents were murdered, Rin was marked with the lightning bolt scar. Harry's was on his left, hers on her right.

Voldimort now knew of both twins and he wanted them on his side of the war; it was a long shot but hey, the snake could dream couldn't he?

Rin snapped out of it; tears streaming down her face. Severus was the first face that she focused on and she clung to him. He wrapped her in a hug and held her, rocking slowly back and forth while whispering soothing words in her ear. Lilly stroked her back in small circles to calm her; sadness filled both adults.

Harry looked at Draco with pleading eyes and Draco released his hold on the smaller boy, allowing him to help his sister.

'Rin? What happened?' Severus asked the distraught girl as he held her.

Rin sat, silent as the grave, for ten minutes. She was terrified; the one man that scared her more than anything now knew of her existence and knew of the ties to her family.

She looked at Harry; eyes glistening with tears, she leapt from Severus and clung to her brother. One sentence left her mouth the entire time that she clung to him.

'He knows.'

Rin's vision blurred and everything went black; the shock and fright catching up to her.

A/N: so this is my first cross over story; please be nice and no flames. Will eventually get to some of the characters moving to Forks but until then, please bear with my insanity and my ideas for this story. Thnks Tsuzuki's-luva.