Prologue

It was a rainy afternoon in the Spinner's End. Severus Snape quietly reading the Daily Prophet in a house that seemed to be inhabited for a long time. A girl who looks like a Barbie Doll sat on a couch its diagonal. The girl seemed much focused on something that was on her iPhone. She looked about sixteen years old, and also seemed bored.

In a moment, she dropped the phone on the table and looked at Snape.

"He knows that I left Rosewood?" she asked, with an air of disinterest.

Snape lowered the paper and looked at her, she had her head slightly tilted.

"I think no." said Snape. "He never mentioned you in the conversations we had."

"Do you think he will be mad when he finds out that I'm back? I know everything?" Snape noticed the small hint of fear in her voice, but ignored.

"Maybe." he shrugged. "Do not forget to point out that you sought me. You found it all alone, Alison."

Alison shrugged, as he had no second ago.

"You know, it's not easy being like me." she spoke like a diva. "My father sent me to another continent! But I came back. And he might kill me." Alison wondered if Snape was paying attention." Well, I'm perfect. But I have a thirst for blood and love to hurt people. And as if that were not enough, I have an identical twin sister, but she is the opposite of me, and I have her hatred."

"Do you have a twin-sister?" Snape asked, feigning interest. He really hadn't paid attention, but pick up a few words of what she said.

"Courtney." She spoke with some bitterness. "She was kind of adopted by Dumbledore. She is boring as him."

Snape really became interested when she said that. Dumbledore never told him about that.

"Well, I'm not stupid." Ali grabbed her cell phone again. "You do not want to know. Okay, I'll go back to playing Angry Birds."

Ali snorted and then realized the presence of Wormtail. She doesn't talk to him. Only the appearance of the man, she knew he was sleazy. Like those ugly girls who had at Rosewood Day. The one she most remember, Mona Vanderwaal, always tried to talk to her. She was such a ridiculous girl.

She had two best friends, Naomi Zeigler and Riley Wolfe. But get tired of them. They were dumber than a door. So chose Hanna Marin, Aria Montgomery, Spencer Hastings and Emily Fields. After a few months, the girls turned to be her puppets. During this time, she met Jenna, a girl who she blinded. Jenna had told her about her not being Alison DiLaurentis, but Alison Riddle. Explain about her natural talent for killing and torturing people. The two kept secret, and Ali wanted to know more and more about Voldemort. One day, she faked her death, putting an Amish girl who looks like her in the gazebo on DiLaurentises's' backyard. And she sailed to France because I wanted to know a little more before coming to the dark side. She studied for three years at Beauxbatons. And there she was, playing Angry Birds bored, beside a Death Eater.

She wanted to join Hogwarts because she was ready now, and tired of speaking French.

Ali paused their game when they knocked on the door.

"Pretend you are reading this newspaper." Snape asked, handing the paper in his hand. Ali opened to a random page and spread the newspaper so they would not see his face. Harry Potter: Is he The Chosen One? It was written in large letters, along with a photo of a white boy with messy black hair, green eyes and a scar half hidden by hair. Ali ruled the boy was sexy. She did not read the material, just stared at the boy.

She heard the sound of someone opening the door. She knew it was Wormtail because he still saw Snape sitting in an old armchair.

"Narcissa." said Snape. He did not use the cold tone he used with Alison.

"Severus." said the woman, Narcissa.

"Bellatrix." this time, Snape had a hint of disdain in his voice.

"Snape." the woman replied in the same tone of Snape.

I like you, Ali thought evilly.

Snape ordered Wormtail bring wine to them, as if Ali was not there. She cleared her throat, and saw a woman with black hair down his newspaper. She had a strange look, but Ali liked the black dress she wore.

"Who are you?" asked the woman, Ali recognized the voice as Bellatrix.

"Alison." She spoke dryly. Bellatrix seemed surprised the girl did not become angry or intimidated. "I'm Alison Riddle."

Bellatrix's eyes widened, and Narcissa was a little behind her too. Snape made an expression that Ali understood as 'you shouldn't be here.' And assumed it was for all three.

"The Lord sent you here?" Bellatrix asked.

"No. I came by myself, because I wanted." Alison replied arrogantly. Bellatrix seemed to be the kind of person who worshiped Voldemort. Ali just respected him for being who he is, and she was on his side, but never would tattoo the Dark Mark on her arm. Barbies do not have Dark Marks on their left forearms.

"I think not survive one year here." Bellatrix shrugged and sat down.

"Well, I couldn't come before because the DiLaurentis wouldn't leave a twelve years old girl to go to another continent." she insisted, had blackmailed them, but they haven't allowed her to go. "So I faked my death and started to study at Beauxbatons. And now I'm going to Hogwarts."

"Good luck, Alison." Bellatrix said dryly, giving a fake smile. Bitch, thought Ali

And then, Ali decided to don't start a fight. Do not want to cause bad impressions. Then Bellatrix began to thatstion the loyalty of Snape, but she paid no attention. Then they began to talk of a boy named Draco, and then Snape vowed to protect him.

"I could help you too." commented Ali.

Narcissa looked at her with a dreamy look, while Ali just smiled.

After a conversation between them, Narcissa seemed to like Ali, and Bellatrix no. Narcissa asked if Ali wanted to spend time at Malfoy's Manor. After pondering a bit, Ali came to the conclusion that any place was better than a house with moldy Snape and Wormtail. Before leaving with the two women, she took a cynical bye-bye to them.