Prologue:

Alison flipped her curled blond hair behind her shoulder as she walked through the woods towards the direction of her backyard late at night. She pulled down on her yellow blouse that was rising up and slipped her cell phone in her back jean pocket.

She had just gotten back from talking with Ian Thomas, an older boy she's been low-key fooling around with for a while. Even though he has a girlfriend Melissa Hastings (one of her best friend's older sister) who truly hates her for some unknown reason.

She processed everything in her mind. She could have sworn Ian and his bitch of a girlfriend were 'A'- this anonymous person that has harassed her with text messages for the last few months.

She even threatened to expose him and his buddies of their little high school club. The N.A.T. club. What the hell does that even mean? Ali thought as she walked through the Hastings backyard to get to hers, Need a therapist?

She turned around and looked over at the large gray and white striped barn where her four best friends were sleeping. She felt a little guilty for drugging them so that she knew they were asleep, but she had to do it. She didn't trust anybody at the moment, and them all sleeping while she gets an 'A' text would put them in the clear.

She pushed the gray and white barn door open slightly as she checked in on them. Luckily they were all still sound asleep in their sleeping bags. She was supposed to be enjoying her slumber party with her friends like they do every year. Yet, here she was, practically trying to save her life.

Jenna Marshall was off her list as well. She played the videos that Ian held on his computer of her and her step brother Toby Cavanaugh of their sexual relationship, yet, Ali still walked out of the room receiving a text that caused her to mentally flinch, and then she knew that Jenna wasn't A.

She was irritated that Byron Montgomery didn't have the money he owed her. Yes she was blackmailing him, but she needs the money to get the hell out of this town and away from the psycho bitch harassing her! She was blackmailing her best friend Aria's father for his affair with one of his college students. She and Aria knew about it but she told him she would make a phone call to Mrs. Montgomery if he didn't pay her.

She walked away from the barn and started heading back towards her backyard to get check on everything. She couldn't sleep knowing 'A' was still out there, unknown to her.

Walking back in to her backyard she rolled her eyes at the sight of mounds of dirt surrounding the green grass.

She wanted more than anything for things to get back to normal. She's Alison DiLaurentis. Nothing brings her down. She's a fighter and she doesn't give up. She's fabulous.

She could have sworn she heard something behind her. She turned around quickly but saw nothing. She hates being so weak, so paranoid. It unnerved her.

Ali pushed a strand of her blond hair behind her ear, her breathing was hallow as she can feel someone's eyes on her. She was hoping it was the paranoia. Practically begging that it was and she wasn't right.

Her big blue eyes were wide and alert as she gazed everywhere around her backyard.

Then she let out a gasp and silent shriek as she felt a cold hand tap her right shoulder making her flinch and as she heard being whispered in her ear directly behind her, "Boo."

Ali whipped around and came face to face with the person who scared her like crazy. A wave of relief ran through her as her breathing started to calm down when she realized who it was.

"Elena?! What are you doing here?" She asked bewildered wondering why her cousin was here in Rosewood, Pennsylvania when she lived in Mystic Falls, Virginia. She glanced around the yard and didn't see Jenna and Jeremy.

Elena's hair was in big curls, something that was different compared to her usual casual straight hair that Ali noticed instantly.

Plus the touch she left on Ali's shoulder made her flinch and cringe. It was cold, and odd. It scared her.

Elena smiled, "I just missed you, Alison."

Ali's eyebrows furrowed together in confusion, Elena always called her "Ali-Bee" a nickname she gave her when she was younger or just the simple "Ali" never Alison.

"We haven't talked in awhile, 'Lena. Kind of thought you forgot about me." Ali smirked.

Elena Gilbert, Jeremy Gilbert, and Jenna Sommers, are Ali's only real family. They're the only people she can ever be real around without being afraid of them judging her or her social status being in jeopardy. She was close to her Aunt Miranda as well before she passed away a little while ago in a car accident with her Uncle Greyson.

Ali attended the funeral broken heart for her cousins, her aunt, her mother, and for herself. Her Aunt Miranda was a better mother than hers ever was. She was so close to her and was able to tell her anything. Something she was never able to do with her own mother.

Elena smiled but Ali can see right through it. She has a knack for reading people, that's part of how she became the Queen Bee of Rosewood.

"How'd you even get here? I'm surprised Aunt Jenna let you drive all the way here. " Ali cracked a small smile, staring warily at her cousin, but didn't give her the slightest impression of her nervousness.

That's when Ali noticed Elena's attire. She was wearing a black blazer over a purple tank top, black skinny jeans, and high-heeled boots. She looked stylish, Elena never looks good.

"What'd you get a makeover?" She asked Elena, quirking an eyebrow up.

Elena smiled, "Uh, yeah. Needed the uh- change."

Ali nodded then asked her, "Well did you go inside? See my parents? I think Jason's home too. Why didn't Jeremy or Aunt Jenna come visit?" Ali asked, her voice faltering a bit towards the end. She missed her cousin and Aunt. She hasn't seen any of them since the funeral.

Elena shrugged slightly. Ali could tell Elena was out of character. And it was slightly disturbing her.

Ali's eyebrows creased together, "You okay, 'Lena?"

Elena smirked, "Just peachy, little cousin." then she took a step forward, looking seriously towards Ali, "Actually, you know what? I'm not Elena." 'Elena' shook her head, she frowned but her eyes shone amusement.

Ali looked up at her older cousin, confused, "What the hell? Are you high, Elena?!" She couldn't understand why her cousin was talking crazy!

'Elena' smirked again, "No. I'm Katherina Pierce. And I'm here to send the Salvatore's and my doppelgänger a little message." then before Ali could even react with a blink of an eye Katherine had her hands on Ali's neck and snapped it, breaking her neck instantly causing her to die and fall to the ground.

A/N- Hey everyone! I don't know if anyone's going to read this, and I know I'm in the middle of two other stories on here and I'm kind of crazy to add another one, but this idea had been in my head for the past month and I needed to at least get the prologue out. It was eating up my mind and I needed to get this idea on here! I'm weird like that, but yeah this is ANOTHER Damon Salvatore fan fiction of mine. I just had to do it. I love Damon, he's my favorite guy character ever. Just warning, you all.

I got this idea while watching Pretty Little Liars and I saw that there were barely any crossovers for Pretty Little Liars and Vampire Diaries and I was so sad because those two are like in my top five favorite shows.

So even if this doesn't get any reviews or alerts, or favs, I'll survive. I just really wanted to write this crossover! But I hope you all like it(: