A/N: So, as stated in the description, this story takes place after "Not What He Seems" and basically Dipper and Mabel end up in another dimension because of the machine. I love Gravity Falls, and I really love this idea. My Reverse characters are based purely on imagination and creativity. There is not 'right' or 'wrong' versions of them.

ohthree has full right to the cover image for this fanfiction. I am crediting the illustrator because I own the picture in no shape or form. If you like the 'Reverse Gravity Falls' idea, then go ahead to their DA and check them out!

One last thing, 'Ciff' is pronounced as "Siff" short for "Pacifica"

Disclaimer: I don't own Gravity Falls!

Dipper woke up with a resounding headache in his head. It was one of the worst ones he had ever experienced, and he couldn't help but feel that his entire brain had turned to slush. He groaned as he rubbed his aching head as the pain kept repeating in painful fluctuations. "What…Happened?" He asked as he looked around the area.

The young boy gasped as everything came back at him at once, "Mabel?" He asked as he looked around, quickly sitting up. He pushed aside his pounding head pain as his eyes went wide in search for his sister. "Mabel!" He yelled as he noticed the normal cellar. The weird portal that was smack dab in the middle had disappeared. "Stan?" He asked as he stood up slowly, getting to his knees first as he carefully looked over his surroundings once more, making a thorough scan of the area. "Soos?" He asked as he completely stood up to his full height. He discovered that the portal definitely was not in the area, but instead there were numerous towers of cardboard boxes aligned around the room.

"I swear I heard a strange noise down here…" Trailed a voice that Dipper knew all too well. He narrowed his eyebrows in confusion as he slowly moved to where the stairs were located. He conveniently snuck into a small crevice that was in between one of the two cardboard towers; blending into his surroundings and out of the way of the small light that was positioned in the middle of the room.

"Uh…I know you like to go on adventures and stuff, Ciff…But I don't think there's anything down there…" Came a timid and scared voice that Dipper could have sworn he knew, but the tone of the voice was off, and he wasn't too sure that he did.

"Nah, it was like a toilet flushing…" The female voice stated as she started to head down the stairs. "Like…'Whoosh!'"

The male stopped as Dipper walked over a small barricade of cardboard boxes, "Okay, but can we turn on the light-?" He asked before Dipper heard a slap and the male voice let out a small yelp of surprise, "Ciff!"

The female voice scoffed, "And scare away our visitor?" She asked rhetorically, "Man up, Gideon," she stated as she hopped down a few steps, landing a few feet away from the in hiding Dipper. His eyes went wide as he saw the Pacifica Northwest…Except she didn't look at all how she should. She had retro 80s clothing on with her hair in a strange fashion that rivaled Mabel's fashion sense. "Now, I could have swear I heard-!"

The male came into view and tripped over his own two feet in the darkness as he went tumbling down the stairs, and right on top of Pacifica. Dipper let out a small quiet gasp as he realized it was Gideon, but without the confidence boost. "Oh no way…" Dipper trailed as he took a few steps back, "This can't be happening."

"The flip, Gid?" Pacifica asked as she tried to get out from underneath the slightly pudgy boy who was disoriented on top of her. "Do you have to be a total klutz every day of the week?" She asked sarcastically as she continued to try and pry her body from underneath him.

"Sorry," Gideon mumbled, "But I told you that we should have turned on the lights!" He argued with a small frown as he rubbed his knees, which he had landed on. "It's a huge safety concern, and we should have turned on all the lights like I had suggested before…" He trailed as Pacifica rolled her eyes in response.

Pacifica sighed dramatically as she forced her body up from underneath him, causing him to roll off of her ungraciously. "Alright, let's see if there's a strange creature here…" Pacifica mused as she placed her index to her chin in thought as she glanced around the towering boxes that were in place. She took a few steps through the box maze and managed to skip past the small crevice that Dipper was hiding in. He held his breath as Pacifica walked past with an unfocused look on her face.

"Ciff?" Gideon asked into the darkness. "Uncle Stan said that we shouldn't be down here…" He trailed in warning as he stepped into one of the lighter areas of the cellar. "There could be rats…Or deadly contagious diseases!" He yelled out in worry and he placed his arms around his stomach in a small attempt to comfort himself at the unseen threat.

"The only disease around here is you…" Pacifica trailed with a teasing grin on her face. After looking around the entire area she shrugged as she quickly pivoted on her feet, "Aren't you curious about trying to find that 'Hide Behind' creature that was in the book?" She asked as she sighed giving up on her search for the mythological being. "In any case, I don't think it would be located in your uncle's cellar…" She trailed with a bored tone.

Gideon sneezed, though it sounded like a small bunny sneezing, this made him back up into a tower of boxes, bumping them slightly. "Can we get out of here now?" He asked in a worried tone as he looked around the area with weary eyes, "This place gives me the creeps," he mumbled as a shiver went down his spine.

Pacifica started to laugh, "You sound like a baby bunny when you sneeze like that," she said as she unconsciously placed a hand on an unstable tower of cardboard boxes. It started to wobble as she leaned against it slightly. Gideon gasped as he noticed what was happening in the dimly lit cellar.

"Ciff! Get down!" Gideon yelled as he crashed into her, shielding her from the now collapsing tower of boxes. Pacifica looked up only to see Gideon on top of her along with the tumbling boxes crashing into each other. Dipper looked up and tried to run away from the towering boxes only to get caught under one tower just like the other two.

When the dust from the boxes cleared, Pacifica had a beat red face as she quickly looked away from Gideon, whose face was extremely closer to hers. "Are you going to stay in that position all day?" She asked in a small, weak tone.

His face lit up slightly from embarrassment as he quickly stood up and straightened out his vest, "S-Sorry, Ciff," he stated lamely as he looked over at the damage. "My uncle is going to kill me!" He yelled in worry. Dipper couldn't hold take the dust going through his nostrils, and despite his best attempt to stay hidden let out one of his baby kitten sneezes, alerting the two that he was there.

"Bless you, Gid," Ciff said offhandedly as she stood up and dusted the collected dirt and dust off of her clothing. She looked up to find Gideon shaking uncontrollably. "The flip, Gid? You look terrified!"

"T-T-That w-wasn't m-me!" Gideon yelled as he looked over at her with wide eyes.

Pacifica's eyes also started to grow wide as she carefully walked over to where the sneeze had come from, slowly pulling out the journal number two that she had found a few days ago. She walked over to where the shaking of boxes were and slowly lifted her hand down to lift up one of the boxes.

"Ciff, be careful!" Gideon yelled as he quickly went to stand a good few feet behind her in case anything dangerous were to pop up.

Pacifica didn't need to lower her hand any more than what she did because the box was thrown quickly off to reveal Dipper, who needed to come up for air at some point. She withdrew her hand quickly as she took a step back. "T-Tyrone?" She asked with wide eyes as she took another step back. She hid the journal inside of her jacket, veiling it from Dipper's eyesight.

Gideon's eyes grew wider as he swallowed nervously, "G-Gleeful? I-In my uncle's cellar?" He asked as he peered over to see the young sorcerer. He narrowed his eyes in confusion as he looked at the outfit that he was wearing. It seemed almost identical to his own.

"Who?" Dipper asked as he pulled himself out from underneath the boxes completely. He noticed a spider on his shoulder as he tried to fling it off of him with his right hand, only for it to not. He quickly kept rubbing his hand back and forth to get it off, only for him to lose his balance and fall backwards on top of the heap of boxes as he yelped out in surprise.

Pacifica glanced at Dipper and then at Gideon with a raised eyebrow, "Why is Tyrone acting like…" She trailed as she observed the confused face of her best friend, "Like you?"

Dipper let out a breath of relief when the spider decided to jump off of his shoulder and onto a nearby box. He then stood up slowly, "Who is Tyrone?" He asked as he shook his head, "My name is Dipper Pines."

"He has the same last name as you," Pacifica mused as she glanced at Gideon, who seemed too shocked to say anything about the newcomer in his uncle's basement. "Must be a popular name…" She trailed as she started to open up the journal and search through the pages, knowing that it wasn't one of Tyrone's tricks since the newcomer knew nothing about the name, "This has to be a creature…Like those gnomes…"

"What…I'm not a creature of Gravity Falls!" Dipper argued as narrowed his eyes slightly at them. "Listen, my f-!" He began to say but remembered what Mabel had done. How Stan and Mabel had betrayed him and it was like a festering wound against his heart. "These people I was with," he corrected as he began to rub the back of his neck nervously, "Were messing with this portal and I somehow ended up here."

Pacifica and Gideon both looked at Dipper before glancing at each other, "I don't believe you," Gideon stated with a hard gaze.

"Welcome to Gravity Falls, Dipper. Or…Reverse Falls for you, huh?" Pacifica asked as she closed the journal in her hands, it leaving a small dust cloud in the air as she did so.

"What?!" Gideon yelled in surprise, "This could be a trick with Tyrone and Mabel! They could be tricking us!"

Pacifica scoffed as she placed a hand on her hip, "And why would they do that, Gideon?" She asked rhetorically.

Gideon glanced everywhere except her intimidating unmoving face, "I-! I…" He trailed as he tried to come up with a reason, some ulterior motive for tricking them, but when he couldn't think of anything, he sighed, "I don't know!" He admitted with a frown, "But you can't be so willing to trust people!"

"So, Dipper, what's Gravity Falls like where you come from?" Pacifica asked as she ignored Gideon's speech, and had moved closer to Dipper, who seemed to smile and being accepted by her.

"Ciff!" Gideon whined as he moved closer to his best friend, slightly concerned about her safety.

Dipper looked around the area of boxes on the ground, "Well, for starters, this was where the portal was," he stated as he looked back at Pacifica's wide grin.

She looked over the area with an amused face, "Cool…" She trailed as she put her journal away in her jacket, "That explains why you ended here…" She mused as Dipper nodded, "But that doesn't explain the toilet sound I heard…" She trailed with a shrug.

"Can't explain that one…" Dipper trailed with a shy smile.

"Well, you saw our dimension, can you go back to yours?" Gideon asked impatiently.

Pacifica turned to glare at him, "What the flip, Gid?" She snapped, "This wasn't even entered into the journal. All it says at the end was 'Trust No One!'" She yelled as she turned back to Dipper with a shy smile, "What kind of advice is that, anyway?" She mumbled in a timid tone.

Gideon noticed the fake tone she was using for Dipper, and he didn't like it. She was trying to impress him, and she was supposed to be best friends with him! He crossed his arms and pouted as his blue pine tree hat covered his eyes as he looked down at the ground.

"Good advice…" Dipper trailed in a hurt tone.

Pacifica noticed the change in his demeanor and snapped her fingers suddenly, "Idea!" She yelled as she grabbed his hand, which Dipper's face immediately changed to surprise. "Let's try and see if we can't send you back to your own dimension, or whatever?" She asked as they started to run towards the stairs.

Gideon grumbled as he was left by himself in the cellar. He kicked one of the boxes in anger, "Uh, Gideon?" Dipper asked, making the boy jump in surprise. "You coming?" Dipper asked as he peeked around one corner of a box with a small smile on his face.

"You bet I am!" Gideon yelled as he followed after them, happy to once again be part of the team.

"Hmm, how do I get his attention?" Mabel asked as she sat at a glass table. She had her legs crossed, her elegant performer's outfit being slightly wrinkled as she did so.

Tyrone entered the small room with a smirk on his face, "Dear sister, you already have his attention…" He trailed as he crossed his arms. She placed the tea cup that was in her hands down on the glass table as it hit against it with a small echoing 'tink'. "Fear isn't what you wanted?" He asked with the slight tilt of his head as he shrugged, placing his arms down by his side.

Mabel leaned onto the table with her elbow propped up against it in a bored and unamused manner, "No," she grumbled as she furrowed her eyebrows. "Fear always used to work in the past…" She trailed as she glanced to her right in thought.

"Perhaps telling him that if he didn't go on a nightly event with you…" He trailed as he walked over to where his sister was sitting in her glass chair. He leaned against it and brought his head down to her ears with a wide grin on his face, "That you would destroy all the people he held dear."

At the threat that she had made, Mabel's face turned into a satisfied grin, "Seems threats isn't the way into a shy and scared man's soul…" She trailed as she shrugged and leaned against the back of her chair, making Tyrone stand up straight as he looked down at her from his full height. "Bill!" She yelled in an agitated tone. In mere seconds, a blue pyramid showed up out of the blue. His form started to shake as tears started pouring out of his lone eye in terror.

"Y-Yes?" He asked as he flew slightly closer to the girl.

"My tea…" She trailed as she gazed into his lone eye with little emotions on her face, "It's cold," she stated as she started to narrow them at the pyramid.

Bill jumped up in the air and quickly claimed the cup from the table in his hands as he started to fly over to another area of the room, "Y-Yes M-Mabel!" He stuttered in a small tone.

Tyrone sighed as he looked over at where the pyramid had disappeared to, "Must you treat him like a common servant?" He asked in an amused tone.

"As if your methods are any less torturous for the thing," she stated as she leaned onto the table, her elbows against them with her hands on her chin in an 'innocent' manner. "Using him for target practice is completely unethical."

"But he never moves," Tyrone stated with a smirk. He suddenly looked up and glared at the entrance of the tent that they were residing in. "There's an energy disturbance," he said as he cocked his head slightly.

Mabel looked to the entrance of the tent, "Then go find out what it was, dear brother," she stated in an enthused tone. "Remember not to leave such a trail of blood this time…" She trailed with a murderous glint in her eye.

Tyrone smirked, "And not live up to my title?" He asked sarcastically, "You always do call me the 'messy' one," he stated as he brought his hand out to the side and in seconds a blue flame was in his hand. It quickly went away as it revealed a crystal blue glass dagger. He smiled and began walking towards the entrance of the tent, all the while humming a strange nostalgic tune.

When her brother had left she sighed as she twirled her index finger in the air to unveil a terrified picture of Gideon Pines. "Now…How to get you to…" She trailed as she raised a confused eyebrow thinking of the proper term for the emotion that she wanted him to convey towards her. "Care…" She concluded as she nodded, "For me."

To be continued...