Okay, so this has been something me and my bud, arielkatze have been working on ever since we returned to the Gravity Falls fandom. We watched the first part of Weirdmageddon and thought what would happen if we tried to write a fanfiction about this with something of our own splashed in. So without further adieu, we present our Gravity Falls fanfiction!

Prologue

10-year old Hayden Pines stafred out the window of the bus, sighing. She and her 12-year old twin siblings were on their way to Gravity Falls, Oregan to stay with their great uncle, Stan, and their cousin, Dex. Mabel, the oldest of the siblings, had seemed thrilled since the moment they had been told by their parents, but Dipper and Hayden couldn't seem to get a grasp on it. Dipper preferred to stay home and read his books while all Hayden wanted to do was sit at her desk and draw, maybe play soccer with her friends.

When their bus stopped, the siblings got up, grabbed their luggage and stepped off the bus. They looked up at what would be their home for the next few months. The kids had been told that long ago, Stan had turned his house into a tourist trap he called "The Mystery Shack", though according to Dipper, the real reason was why anyone came.

Looking towards the front porch, they saw their great uncle, fez and all, standing with a teenage girl they assumed to be their cousin. Dipper, Mabel and Hayden had seen many pictures of Stan, but had never seem Dex before. She had stark white hair with only a black streak running through her bangs, her ears covered by her hairm a red cap on her head.

"Hello and welcome to the Mystery Shack!" Stan said, as he had, undoubetedly, greeted customers many times before.

"Grunkle Stan! Hi!" Mabel exclaimed, waving excitedly. "Cuz Dex! Hi!" Dex's eyes widened at Mabel's exclamation, then her expression softened as she smiled at her cousins. "I'm Mabel! This is Dipper and our adorable baby sister, Hayden!"

Hayden's cheeks burned from the intense blush at Mabel's introduction. "I'm not adorable or a baby, Mabel!" she shouted. Dex covered her mouth to hide the small smirk that had appeared on her face.

Dipper sighed and walked towards the shack, Hayden sticking close to him, both out of apprehension and sheer embarassment. "Anyways, despite Mabel's obviously overdone and insanely humiliating introduction, it's good to meet you, Dex."

Dex grinned. "Likewise, Dippin' Dots." Dipper blushed at the familiar nickname.

"Well, no that the intros are all done," Stan began. "How about you kids get settled in. Starting tomorrow, you're all summer employees here at the shack!"

"He says that like it's a good thing." Hayden muttered to her siblings as they walked inside.

"The room is the only room at the very top of the stairs!" Stan shouted after them.

When they reached the designated area, they found themselves in an attic that had been converted into a room to house the three siblings. Two beds were set against the back wall with two small side table drawers stuck together with a lamp in between (Hayden guessed those beds were for the twins since they were never apart). Another bed rested against the right wall just a foot away from what HAyden guessed would be Mabel's bed with it's dresser own dresser next to it, but no lamp (Hayden supposed this bed was hers). It was sideways in comparison with the other two, but Hayden thought that was the best part. It meant she could keep an eye on her siblings.

Once Dipper found that journal just a day or so later, Hayden figured that this summer with Stan and Dex in Gravity Falls may not be as boring as she and her siblings had originally thought it would be.

How was that? Just some background info, Dex is arielkatze's character. you'll find out the extent of her past better from ariel's point of view on this then from mine, because even though I know, my character is Hayden, who doesn't know much about her at all.

Read and review please!