Chapter One: Prologue:

It was early summer. The first night of summer to be precise, and the usual cold, icy wind blew gusts of crisp air through the dark streets of rosewood, where three 14 year old girls; Caterlina Cavanaugh, Ellie Fields and Serenity Fitz were busy making the most of the beginning of the summer break.

"Ha-ha! I told you I was going to beat you, and I did it again didn't I! WOOOH!" Caterlina cheered, flicking back her long blonde and pink striped hair. "Oh come on Cat, it was only a simple expression. How about we try something more challenging, like..." Serenity thought, flicking through pages and pages of her A-C grade maths text book. See, I told you these girls like to make the most of their summer.

The three girls were all chilling in Caterlina's luxurious garden den she and her dad had finished building only a few weeks ago. The outside wasn't the most attractive of all buildings, with its dark, murky green paint which had faded away after the many storms they have here in Rosewood. And all of the spooky elms surrounding the small, rectangular building, making it look like some sort of abandoned ghost house. However, the inside was beautiful, with all of Cat's stunning pink wallpaper and mathematic related posters hung in every direction. It looked like the perfect bedroom, for a mathematician that is.

That's the thing with these three girls, they all seem to have some sort of strange obsession. With maths. They're all part of a club, the Quadratics club ruled by Caterlina (quite possibly the most intelligent girl who has ever stepped foot in Rosewood). You can probably imagine that these three girls aren't the most popular in their school. They're quite frequently picked on, made fun of and humiliated in front of their class mates. All for being intelligent and actually taking their lives seriously, unlike the other teenagers they're bullied by. However, for them, that's what they're really wanting to change...

"So, how about we enjoy our last summer before High School with some A* algebra?" Serenity suggested, peering at Caterlina and Ellie who were both sat on Cat's soft, fluffy bed sheets. "We might as well, considering that once school starts next month, we're going to have to scrap all this..." Ellie pulled a saddened look on her face. "I can't believe we're about to begin our first year of High School. It's gone so quick." Caterlina muttered, "you scared?" Serenity queried, hopping across the dens' lovely pink and blue carpet and to Caterlinas desk to take a seat. "Not in the slightest." Caterlina giggled, putting on her usual macho front. "Cool, because it's a fresh start. For all three of us." Serenity smiled at her two best friends, "Yep, so long as we don't hold any more Quadratics meetings at school, boast about our straight A's, or cheer every time our teachers set us assignments, we should be fine." Cat caused the other two girls to giggle along with her. "Anyway, what do you say we kick of our 'fresh start' with a fresh glass of my own home made Lemonade?" Caterlina questioned, stepping off of her bed, opening up her little mini fridge and pulling out a large jug of yellow, bubbly, cloudy Lemonade. As you can see, these ladies like to live life like rebels. "Yeah, sure." They all took a nice, tall glass of the fizzy substance. "Drink up." Caterlina encouraged as they all took large sips...

2 Hours Later-

RING, RING! A loud ringing noise echoed through the bedroom, instantly waking Ellie.

"Hello...?" Ellie whispered, sitting up in the cold, dark room. "Cat..? Your alarm is going off... Serenity..? Is anyone awake?" Ellie continued to whisper, as she sat on the floor of the quiet and spooky den house. "Wait, why is the door open?" She questioned, immediately leaping up off of the floor and hopping out of her purple sleeping bag, brushing her long black hair out of her eyes and peering around Caterlina's bedroom. "What..?" She questioned herself, pulling a confused face as she gazed across the room at Cat's empty bed and Serenity's empty sleeping bag. "Hmm..." She thought to herself, grabbing her geeky square shaped glasses and wearily tip toeing towards the dens front door, barefoot.

"Guys!? Is anyone out here? Cat? Serenity? What's going on?" Ellie called, slightly louder this time, trembling with fear as she looked out into the dark street. "Oh, sorry." Serenity suddenly appeared out of no where, crossing the grass towards the den house in Caterlina's parents' back garden. "Sorry, I was just fetching some snacks. Where's Cat?" Serenity questioned Ellie, passing her and trudging into the cold, dark den with a bag of crisps and a packet of biscuits. "What do you mean where's Cat? I was just about to ask you the same thing." Ellie stated, looking highly puzzled, turning to face her friend. "Is she not here?" Serenity's smiley face suddenly dropped to a pit of worry, as she turned her gaze to Caterlina's empty bed. "No." They both stared at each other, with serious looks on their faces. "So, if she's not here and she's not with you, then... Where is she?" Serenity and Ellie both stared at each other, full of worry and fright, when suddenly...

"AHHH!" An extremely high pitched, ear bursting, gut wrenching, deathly scream echoed through the ghost town...

A/N: Thank you for reading my Pretty Little Liars: Next Generation Prologue, I really hope you enjoyed it! Please review if you have the time. Chapter 2 should be up within the next few days, thank you! :)