Author's Note: Ok guys, here comes the weird part (please don't hate me!). I will now be writing the story during the time of their third year. The previous chapters involving the first year were just Arra's introduction just because it's something that you need to know to understand the rest of the story, and I just felt I needed to explain how a fourth member of the golden trio came to be. I don't like stories in which they're just there. I'm skipping second year entirely because it doesn't pertain to my story, and I want to get Sirius back in the picture. But no worries, Arra will be explaining what happened during the lost time to all of you. :]

Disclaimer: I don't own Harry Potter, just Arra.

2 years later…

Arra sat on her bed in her room at the Leaky Cauldron, there she was meeting her three Gryffindor friends. She was flipping through a picture album that she had created right when she began her life at Hogwarts. The first picture was of her Aunt Bellatrix waving her off to school. Arra hadn't seen her aunt since then. After she was transferred to Gryffindor and made friends there, Bellatrix basically disowned her. But Arra didn't mind, she now owned the entirety of the Black fortune, even though she was underage. (The ministry didn't argue when Bellatrix Lestrange was in the picture). But she didn't live alone during the holidays, she was always welcome at the Weasley's or the Grangers.

The next picture was of her and Draco sitting on the train. She still retained her friendship with Draco, but it became increasingly harder. His family disapproved of her as well because of her switch in houses, so they forbade him from seeing her, but they still hung out as much as possible at school. He also didn't like her friendship with Harry, Ron and Hermione; but he tolerated it as long as he didn't see it or hear about it.

On the next page, was a picture of the four friends sitting in the hospital wing after the fight for the sorcerer's stone. Arra still remembered that day like it was yesterday:

After they got through the Devil's Snare and the Flying keys, came the chess match. Ron had sacrificed himself for the others to move on and Arra had volunteered to stay behind to look after him and get help if needed. Harry and Hermione were about to leave the two when Arra ran after Harry and threw her arms around him.

"Be careful," she said in a voice just above a whisper. She then broke apart so that she could look at him. "I just got you broken in as a good friend. It would be a shame if I had to start all over with a new person." She joked, her usual charming personality coming back to her. Harry smiled down at her and they remained that way for who knows how long--time seemed to stop. Harry eventually pulled away and Arra watched him go. About 30 minutes later, Hermione came back and told Arra what had happened and the two girls woke Ron up and ran as fast as they could for help.

When they were told that Harry was in the Hospital Wing and that he was going to be okay, Arra almost passed out from excitement and relief.

If the friendship between them all wasn't strong before that incident, that's what brought them together. She smiled at the thought of her friends; she hadn't seen Ron or Harry since the end of second year, for she had stayed with Hermione over the summer in France. Mr. and Mrs. Granger were thrilled that Hermione had a good friend who was a girl that wanted to spend time with her. Before Hogwarts, she had no friends.

Arra turned the page again and found a picture of the four of them in the library trying to uncover the secret of the Chamber of Secrets during their second year.

"I'm telling you guys, it's not Draco!" Arra tried to convince her friends.

"Who else could it be Arra? You told us yourself that his family is a supporter of You-Know-Who. And he's in Slytherin along with his whole family. There's a very good chance he's his heir." Ron pointed out.

"I used to support him too, and I was in Slytherin as well. Why don't you suspect me?"

"Because you didn't know any better," Harry said trying to make her feel better about her past. They tried as much as possible to not say bad things about Slytherins since Arra became their friend.

"Here it is!" Hermione said as she pulled a large and old book out of the shelf and laid it on the table to an open page. "The Polyjuice Potion." They all scanned over the potion and cringed at its difficulty.

"How long will it take to make?" Harry asked.

"A month."

"A month? But Hermione, Malfo--The Heir of Slytherin," he said correcting himself after a glare from Arra, "could have attacked half the muggleborns in school by then!"

"I know, but it's the only chance we've got."

They had all chosen to stay behind on Christmas Holiday in order to interrogate Draco.

"I'm telling you guys," Arra said as they once again met in Moaning Myrtle's bathroom to take the potion, "this is pointless. You're not going to find out anything."

"Well, then we can rule out Malfoy as a suspect."

"Ugh! If he was the Heir of Slytherin, he would have told me! We are friends, you know."

"I doubt he would have told you Arra. You're friends with people who aren't purebloods, I think he would have been afraid you'd rat him out."

Arra rolled her eyes in defeat as she went along with the plan. But after Hermione accidentally turned into a cat, Arra stayed behind to comfort her while the boys went on to question Draco.

Arra smiled as she looked at the picture. She knew that Draco would never betray her, no matter who she was friends with. She then thought about what had happened recently after then, when Hermione was petrified.

They were all told to gather in the Common Room, for McGonagall had an important announcement. She came in with a grave look on her face and told them the new rules and about the prospect of Hogwarts closing. They were about to go up to their dorms when the Minister of Magic himself came in the room. Everyone was silent.

"Miss Black, can I see you please?" He said.

Arra looked with wide eyes at Harry and Ron. Along with Harry, she had also been a prime suspect as the Heir of Slytherin, and with the Minister coming here for her, she was definitely scared. Harry squeezed her hand before she followed the Minister out of the room.

He paused before speaking to her in a careful voice. "Eh, there has been some speculation about your involvement with the opening of the Chamber of Secrets."

"I'm aware of that, but just because I'm a former Slytherin and my family has history with You-Know-Who, doesn't mean that I can be accused." She argued back.

"Actually, there is." He said as Arra stiffened. "We found your schoolbook near Miss Granger when she was attacked."

"We're friends! She borrowed my book! There's nothing wrong with that!"

"Professor Snape has told me that you weren't present at the Quidditch match either?"

"I had gone to look for Hermione. She just ran off and we didn't want her to get hurt but Harry had to get to the pitch so I went after her!"

"But you were the one who found her petrified in the library, with no other witnesses to prove your innocence." He said slowly.

Arra stuttered in confusion. He couldn't just accuse her of hurting her best friend! She hadn't done anything wrong! Just because her father was Voldemort's right hand man, and she used to be in Slytherin--th-they just couldn't do this!

"I'm sorry Miss Black, but until the attacker is caught, we are going to put you under the control of the Ministry. For your protection. We're not blaming you for the attacks, but it's just a precaution."

Since that day, Arra hated the Ministry more than anything else. She disliked them before, but now she just loathed them beyond anything else. For the remainder of that year, she was placed in a safe house under the watchful eye of the Ministry officials. But when Voldemort was caught at the end of the year, she was pardoned and the Ministry apologized endlessly. However, it did work in her favor, for her apology from the Ministry happened to be that of cash, and Arra was free to use her entire fortune the way she wanted to because they decided long ago, that trying to control someone like Ariana Black was just a bad idea.

She was permitted to come back to Hogwarts for the end of the year feast though, and it was a joyful reunion between the friends.

Arra shut the book and Hermione entered the hotel room.

"Hey Arra. What are you doing?"

"Just looking at some old pictures of us from when I used to hate you." She smiled at her best girlfriend. True to her word from the night they became friends, Arra had done everything in her power to make Hermione's hair less bushy, and she had done quite a good job. In the past two years, Hermione and Arra had both become even more beautiful, but Arra would always have extra beauty that Hermione lacked, while Hermione would always be so much smarter than Arra. They balanced each other well, which is one of the reasons why they were so close. Arra was the spontaneous one, Hermione was the practical one. Arra was outgoing, while Hermione was shy. The two girls were insanely different, but still extremely close.

"Haha, very funny." Hermione responded with mock laughter. "Hey, Harry and Ron are supposed to meet us at the ice cream parlor in about 10 minutes, do you want to start walking now?"

"Sure." Arra said hopping off the bed. In the past two years, her dark brown hair had gained a bit of a reddish tint and was now the most beautiful shade of dark auburn. Her silky smooth hair ran gracefully down her shoulders and ended with gorgeous curls around the small of her back. She walked over to the mirror and applied a little bit of dark brown eye shadow to match her eyes and a small coat of lipstick for a trace of color. That was all the make up she needed for her skin was smooth and pale with a natural rosiness to her cheeks. Her eyelashes were extremely long and already black, so she needed no mascara. She pulled on a tee shirt and jeans with her black Chuck Taylor Converse sneakers and met Hermione at the door.

They walked through Diagon Alley admiring the shops until they noticed Ron and Harry sitting outside eating ice cream.

"Hey guys!" Arra said giving them both a hug before sitting down.

"So, have a good holiday, Arra?" Ron asked as he shoveled ice cream down his throat.

"Yeah, France was great. Hermione and her parents were really nice to let me tag along. How was Egypt?"

"Brilliant! We got to see the pyramids and loads of ancient stuff. Hermione would have gone mad with all the information and history around there." He joked as Hermione gave him a frown.

"Harry," she said turning to the black haired boy, "did you really blow up your aunt?"

"Yes," he smiled, "but she deserved it!"

Arra laughed at Harry's accidental prank while Hermione scolded him for being so irresponsible. Arra had missed her friends so much; especially Harry. Last year they grew really close because everyone thought that they were the ones attacking people so they had a lot in common. During that time, their friendship had become so strong that Arra felt as if she could trust Harry with anything and that he would do it without a second thought.

She missed Ron as well. The two of them were very funny by themselves, but once you got them together, laughs were sure to come. Ron could always cheer Arra up and she could do the same for him (and she had to quite often, for Ronald Weasley could get rather moody at times). Hermione frequently got angry at them for their carefree attitudes and joking ways.

When they were finished with ice cream, they all walked back to the Leaky Cauldron to meet up with Ron's family.

"Arra!" Mrs. Weasley said smiling and giving her a big bear hug. "Lovely to see you dear." Mr. Weasley hugged her as well before she went to greet the rest of the family.

"Hey there serpent-girl!" The twins shouted. After Ron became friends with Arra, Fred and George immediately warmed up to her as well. But they still poked fun at her for being in Slytherin. Behind Ron, Fred and George were definitely her favorite Weasleys. They hugged her and immediately started talking about new products they had come up with for the year. Arra often helped the twins create new pranks (without telling Hermione or Mrs. Weasley, of course).

Percy then walked towards them with his head held high and chest puffed out in a pompous manner. "Ariana," he said holding his hand out for her to shake. "How good to see you." He kept his face straight the whole time and was talking to her like a potential business partner.

Arra took his hand and curtsied to the ground and kissed the top of it in a servant like manner. "Your majesty." She said trying to hold in a laugh. Fred and George instantly doubled over in laughter and Percy frowned at the joke.

"Do you two really have to encourage her?" He asked angrily while still attempting to keep his face straight.

"Do you really have to call me Ariana?" Arra asked giggling along with the twins. Percy scowled and left them alone.

Soon enough, they had all gathered around the table to eat and Arra sat next to Harry. She kept noticing Ginny shooting them looks of interest. Since Arra was kicked out of school for a while last year, she and Ginny never got close. But she did know that Ginny was head over heals for Harry and that the small redhead was obviously jealous of the close friendship Arra had with him.

Mr. Weasley began to have a hushed conversation with Percy at the head of the table while shooting glances at Arra. She figured they were just talking about all the Ministry hullabaloo that involved her from last year. She tried to see what they kept gesturing to, but all she could see was "FROM AZKABAN" because the first word was covered.

"This is a dinner for family and friends, boys. I'm sure that your discussion can wait until later." Mrs. Weasley said.

"What are you talking about that's so important anyways, Dad?" Ron asked with interest trying to peer over the table at what was lying before them. Arthur immediately snatched it out of sight and said quickly,

"Nothing Ronald. It's nothing."

By now, Mrs. Weasley must have known what was going on because she said in a very stern tone, "I think it's time you put that newspaper away. Now." By now Arra was very interested and it obviously had something to do with her, since they kept looking at her before.

"Yes dear I think you're right." Mr. Weasley said trying to shove the paper into his pocket but it accidentally slipped to the floor right next to where Arra was sitting.

"Don't bother with it Arra, I'll get it." He said while trying as fast as he could to rush over before she picked it up.

"It's no problem, I've got it." She said as she grabbed the paper and her eyes were suddenly glued to the front page. There, in front of her own eyes was the one thing she never wanted to see ever again; the thing she hated more than anything else in the world. And before she passed out and fell over backwards unconscious the last thing she saw was the entire caption and a madman's face. A face she knew. The face of her father--Sirius Black.

Author's Note: I hope you all don't hate me for throwing this curveball! And I hope you continue to stick with this story, because it will be good.

I hope I covered everything important through those missing years, and if I didn't, let me know and I'll try to clear it up in the upcoming chapters. And I won't be skipping anymore time either, all the upcoming years will be rewritten to fit Arra and her story.