Eles ganharam seus poderes das piores criaturas que se possa existir e eles também fizeram coisas terríveis, mas um encontro inesperado, mudará o destino de todas as dimensões.

Major AU. Who were Marceline's parents? why did the Mushroom war happen? How was the Enchiredion created? Where did the Cosmic owl come from? And how did a certain town in Oregon get involved in this? Finn and Jake are going to...find some of these answers...hopefully? Anyway, it's MYSTERY TIME! A story idea given by 'Dr-Indigo'.

It's been 10 weeks since the incidents of the Red Throne. Finn is depressed by a recent phone call from Flame Princess. He decides to visit Flambo's brother to get a map to another dungeon. He is given a map and three journals to aid him in his adventure. When he gets there nothing happens. As he reaches the end he summons a demon that may be a greater threat than the lich itself.

Join Dipper the human and Mabel the cat on a whirlwind adventure across the land of Ooo!(now continued in 'tales of the falls')

When a villain threatens the safety of the multiverse, it's up to a group of your famous characters to be recruited to save their worlds. The cartoons used include Gravity Falls, Adventure Time, Steven Universe, Phineas and Ferb, Star vs Forces of Evil, Dexter's Laboratory, and more.

Title says it all Dipper knows with every inch of his being that his babysitter is anything but human. And Mabel? Well she absolutely adores her. AN: I wrote this for fun! Nothing serious. Lol I bet you'll never guess who the vampire is ;) Also has this already been done before? WARNING: Some Cussing

Wendy Courduroy esta a punto de dar el paso más importante de su vida al estar a punto de casarse con Dipper, una despedida de soltera que sale mal y un encuentro con su mejor amigo Stanford Pines le haran replantearse si esta tomando la mejor descisión al seguir con ese matrimonio. Paralelo a Una boda ¿Con mal final?

Pre- The Inconveniencing AU! Mabel goes against Dipper's wishes and summons a hunky boyfriend with his journal...unfortunately, she gets way more then she bargained for! She summons a whole new world! Dipper X Harem, Finn X Harem, Mabel X Harem! Based on a story suggestion sent by 'The Howling Behemoth'

Had this crossover idea in my head for a while. It involves characters from Adventure Time, Gravity Falls, Homestuck, Steven Universe and RWBY with the plot of None Piece Episode 5-7.

okey primer fan-fic en esta historia Kryptos recibe una segunda oportunidad para poder cambiar su punto de vista este es un crossover con varias series espero que lo disfruten

Dipper and Mabel and their friend's enter the land of ooo to destroy the next Bill cipher piece. but when the next piece made the ice king even more powerful and crazier then Before. They must team up with Finn and Jake to stop him

10 years after the events of gravity falls, this story takes candy center stage on her journey back to her hometown with an unlikely companion

Bill Cipher & Prismo exchange a very tedious conversation with a couple of wise cracks in between. It all takes a turn when the dream demon has a devious look in his eye.

8 areas. all survive life by doing what they are ordered to. it's like we're.. slaves. but i'm sick of being someone's slave. we need freedom. i'll bring them freedom. this story includes a lot of OC, a lot of ships, and a lot of characters. enjoy!

Or, alternately, A Short Story about a Tree and a Triangle, Bought to the Human Boy by Death Itself.

It's finally happened. The world is starting to deteriate and Jeff finds himself, along with his friends smack dab in the epicenter. An outbreak of horrific proportion has started to take the city of San Francisco and Jeff along with his group of friends, Marceline, Bonnibel, Finn, Dipper, and Mabel must do whatever it takes to survive.

When Dipper and Mabel desire to go adventuring beyond Gravity Falls, they follow the Journal's instructions leading them to Ooo. But when they regret doing so, they try hard to get back home, but they instead have to go through other dimensions just to do so. Will they get back home? Keep calm and read on!

"I felt like I was living two lives. One in the present and one in the past." ― A.B. Shepherd, The Beacon

this is the greatist story plus it has mysteryes in it! k or k

(This story will remain incomplete forever. You're welcome, self-pride.) Gravity Falls & Ooo collide! Two different dimensions, one big adventure!

I'm taking story requests. Any kind of story involving Gravity Falls and/or Adventure Time. Read the rules inside, review story idea if you want a story entry. Stories will be posted in different chapters meaning each story may only be up to two chapters long . Remember you might not get your story chosen, but if I like it then sure :