DISCLAIMER: I DON'T OWN GRAVITY FALLS

Prologue

Deep in the woods, inside an old abandoned cabin. A cloaked figure sat down writing several notes. After finishing the final letter he took them all over to a roost of carrier pigeons. The pigeons all flew off in different directions after given their messages; flying towards the mountains, the forest, the lake, and even a few buildings around town. The recipients of the notes all received the same message:

To whom it may concern,

Fellow creatures of Gravity Falls. I know that, as per our custom, we do not normally interact with each other. In fact in some cases we down right hate each other, but something of the urgent matter has come to my attention. DIPPER PINES IS RETURNING TO GRAVITY FALLS. I sure that I don't need to remind you all of the humiliation we suffered because of that boy last year! And now that he's aware of our existence, I'm certain that he will be better prepared and more dangerous this time around! Therefore I'm proposing a temporary truce and alliance. We must band together to stop Dipper Pines, and to a lesser extent his idiot sister, maybe that doofus of a handyman as well. I'll be waiting for a favorable response in the old cabin in the woods. Directions are on the back.

Signed,

G

The cloaked figure grinned with anticipation, as rows of monsters arrived at the cabin responding to his call!

"Ah Summer Break! A time for fun and relaxation. Last year our parents forced me and my twin sister to spend our summer with our Grunkle Stan who lived in a small town called Gravity Falls. At first I was I expecting a long and boring summer of having to work at Stan's tourist trap the Mystery Shack, but after discovering a strange book, I ended up having the adventure of a lifetime! Pretty soon me and my sister were hunting monsters and solving mysteries! Best of all I found myself a great girlfriend! (Ahem) Okay she's not all that great; in fact she's kind of spoiled, bratty, self-centered, bossy, and I better stop talking about her right now. Anyways we're on our way back, and I can't wait to see what's in store this time around."

"Dipper we're here!" Mabel said excitingly shaking her brother like crazy.

"Yeah I heard you!" Dipper said lightly pushing her away. Dipper closed his journal and looked out the window. He sighed seeing the familiar wilderness and the small rustic town that he used to hate but now loves; and at the bus stop he spotted Grunkle Stan waiting to pick them up.

"Grunkle Stan, did you miss us!" Mabel cried giving the old man a big hug.

"Yeah I miss you like a migraine you little gremlin," Stan teased hugging the little girl. "I see you still have that walking bacon factory," Stan laughed pointing at Waddles. Waddles oinked happily as if laughing with Stan. "Good to see you too Dipper. Let me help you with that." Stan offered grabbing the smallest bag and taking it to his car. Leaving the rest of the luggage for Dipper to carry.

"Great to see you too Grunkle Stan," Dipper grumbled as he dragged the remaining luggage over to the car. "So Grunkle Stan how's the Mystery Shack doing?" Dipper asked after they finished loading the car.

"Great actually, thanks to that crazy book of yours, my attractions have never been so popular!" Stan reported.

"So can I have my book back then?" Dipper asked. He kind of regretted giving Stan his book at the end of last summer. Even though it was more or less useless outside of Gravity Falls, he still felt kind of naked without it.

"Uh, sure if I can find it," Stan said suspiciously. "Man I tell you I'd lose my head if it wasn't attached!" After about a half-hour or so, the group reached the Mystery 'S'hack which still has that broken sign! Stan claimed that it kept falling off so he no longer bothers with it. The twins think that he's just being cheap like always.

"Well Dipper let's hurry on up to the attic to unpack," Mabel said grabbing the smallest bag.

"Oh yeah about that, you guys aren't staying in the attic," Stan informed them.

"WHAT!?" the twins gasped.

"Yeah I have some other tenants using the attic right now." Right on cue two familiar looking boys came down the stairs carrying a plunger and a mop.

"Oh my gosh, Dipper times 3!" Mabel gasped excitedly seeing two other boys that resembled her brother.

"Hey Grunkle Stan, we've finished unclogging the toilet, again!" one of the boys groaned.

"I don't get why we have to do this while Soos gets to change light bulbs," the other boy complained.

"Great timing," Stan shouted. "Dipper, Mabel, these are your cousins Trace and Joe. They're staying attic so you two will have to stay in Soos's break room."

"That should be fine," Mabel said softly remembering how she and Dipper almost killed each other for that room. Dipper agreed to this new living arrangements as well.

"Here let us help you with those cousin," Trace said grabbing some of the luggage.

"Thanks, nice to finally meet some people with a little courtesy!" Dipper glaring at Mabel and Stan. As Trace and Joe carried the luggage to their room, Dipper couldn't help but feel that there's something familiar about them and it isn't just their rugged good looks!

"Well this is nice," Mabel said unpacking her things. "At least we won't have to go all the way up to the attic this time. Right Dipper! Uh Dipper?" Mabel turn to check on her twin only to see that he hasn't even started unpacking. Instead he was in his thinking pose. "HEY DIPPER!" yelling into his ear.

"Ah, Mabel why'd do that!" Dipper whined rubbing his ears.

"Because you were in your over thinking zone again," Mabel said. "What's wrong?

"Oh it's those other twins," Dipper said.

"I know it, isn't it great!" Mabel said. "It's like I have three twin brothers!"

"Yeah but where did they come from? I've never heard of them. I don't even think they're human." Dipper sharing his thoughts.

"Ugh, not this again," Mabel groaned. "You know Dipper not everything in Gravity Falls is some supernatural mystery. Even Grunkle Stan says that they're from some distant relatives, and he wouldn't lie to us." Dipper eyed his sister skeptically. "Okay maybe he'd lie, but not about family!"

Dipper had to give her that. Despite all their great uncle's shortcomings, he does care about family. "Okay but I would still want to know more about them." Mabel shook her head in disapproval, while she loves it when Dipper gets into his mystery solving mode, sometime she just wishes that he wasn't so paranoid. The two found their 'cousins' in the shop sweeping up the floors. "Hey guys," Dipper greeted.

"Hey to you two cousins," Trace smiled.

"So anyways, me and Mabel were wondering if you could tell us a bit more about you guys," Dipper said.

"I wasn't wondering," Mabel whispered.

"Of course," Joe said putting his broom down. "Well as you know we're distant relatives"

"So distant that we didn't even know we had a great uncle," Trace interrupted.

"Yes," Joe pushing his brother out of the way. "Anyways, long story short, our parents had to work overseas and they sent us to live here for the next year."

"A whole year!" Dipper gasped. He wasn't sure whether to pity them for being separated from their parents for so long, or envy them for being able to live here.

"So I hope you don't mind us intruding on you," Trace said.

"Of course not, we're family!" Mabel hugging the two boys. Dipper on the other hand, eye them suspiciously, he couldn't shake the feeling that there's something off about them.

"Nice to see you kids getting along," Stan said as he entered the shop. "Anyways, we've got tourist coming so I need all of you get your game face on!" Mabel started roaring getting all pumped up. "I like your moxie kid, so you get lead the tour group today."

"YES!" Mabel cheered. Finally she gets to try test her theory that you can still scam people while being completely honest with them. It's Mabel logic, best not to think about it too hard.

"Trace, you run the cash register until Wendy comes in," Stan pointing to Trace. "Joe and Dipper you're on clean up duty, make sure this place is spick and span. The customers pays longer when the place is clean!" Stan laughed as he went out to greet the public.

As Dipper got ready for work, his cell phone went off. "Oh no, it's from Pacifica! She wants to meet with me right now!" Dipper gulped. This being his first time having a girlfriend, he wasn't sure how to handle the situation. Should he drop what he's doing and rush over to her, or just text her that he's busy right now and promise to meet up with her later. Luckily he didn't have to decide.

"Why don't you go, I'll cover for you," Joe offered.

"Really? I don't want to be a bother." Dipper asked.

"No bother at all, we've been at it for awhile now so we're use to it, and besides you don't want to get your girlfriend mad, especially when she's Pacifica!" Joe warned.

"How do you know about that?" Dipper jumped.

"What? You dating the richest most popular girl in town! You can't really keep that a secret!" Trace pointed out.

Dipper could see his point. "Well thanks guys! Oh and please don't tell Mabel about this." he begged, not wanting to renew any animosity between them.

"You have our word," the twin boys promised. Dipper thanked them again before running out of the Shack. A second later Mabel walked in.

"Hey where's Dipper?" she asked. "I was hoping he could help me decorate the place before our customers get here." Holding up some fake bats decorated with glitter glue.

"Oh uh, he's cleaning outside, so how about I help you," offered Trace. "You know, what would be really pretty? If you paint them with a little phosphorous so that they glow in the dark. I just happen to have a spray can in my room." he suggested. Mabel became giddy with excitement. She's always wanted to do an arts and crafts project with Dipper, but doing it with her new cousin is good too! As Mabel hurried to get everything ready, the two clones grinned and nodded at each other suspiciously.

Back at the cabin, the monsters gathered. "Alright, we're here! Where's the eats? Never mind." Leaderaur yelled grabbing a handful of the smaller creatures and stuffing them into his mouth.

"Hey those were my cousins!" Jeff accused. "One of them still owes me five bucks!"

"Oh and what are you going to do about it pipsqueak!" the Manotaur growled. The gnomes retaliated by piling up to their giant monster form, becoming a head taller than Leaderaur! For no rational reason the one story cabin somehow became large enough to house two giants along with all the monsters that came for the meeting!

"Stop this foolishness!" the wax head of Larry King yelled rolling in between the two behemoths. "This is not why we're here!"

"Yeah you're right," the gnomes agreed coming apart.

"So why are we here?" Leaderaur asked, he completely forgetting the reason.

"Because I-I-I-I asked you," a cloaked figure said entering the cabin. "First off I would like to say we-e-e-elcome. My name is G."

"Just G, that's stupid!" the monsters laughed.

"I-I-It's short for Gray Bitie, Okay!" G clarified, but the monsters only laughed harder at such a ridiculous name. "SILENCE!" Gray yelled calling the room to order. "Now we are all here because we've all been humiliated by the human Di-i-i-ipper Pi-i-i-ines!" That caused all the monsters to growl and roar with anger! "Yes and united under my leadership we will have our..."

"Hold it, who put you in charge?" Leaderaur demanded. "Maybe I want to lead this little clubhouse!" The other monsters began voicing their objection and their bid to be the leader!

"Because I-I-I-I have insider information," G explained. "I-I-I-I know exactly where and when the boy is going to be at all times; and ready to plan the perfect ambush!" The monsters glanced at each other, seriously considering G's proposal.