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Underfalls: A Gravity Falls/ Undertale Crossover

PixaneFangurl510

Reads 41,442
Votes 1,180
Parts 13
Time 1h 0m

Reads 41,442
Votes 1,180
Parts 13
Time 1h 0m

PixaneFangurl510

alphys crossover dipper flowey gravityfalls mabel papyrus sans toriel undertale undyne

"Dipper, there is one last thing to prevent Bill's reign of terror for good. You must climb to Mt. Ebbot, not far from here, and retrieve some inter-dimensional travel-block. It will prevent Bill from ever crossing into our realm, and taking over our world."

"Ok Great Uncle Ford. I'm on it-"

"Oh and Dipper?"

"Yes Great Uncle Ford?"

"Take Mabel with you. Its dangerous to climb Mt. Ebott one. Legends say that those who climb the mountain never return. Be careful Dipper,"

"I will. Thanks Great Uncle Ford."

~§~§~§~

Dipper and Mabel Pines are your average twins, spending the summer at their "Grunkle" Stan's Mystery Shack. But, as the summer progresses, Stan's twin brother, Stanford, returns. Bill, the evil inter-dimensional mastermind plans to cross over into the world of Gravity Falls, and the apocalypse of "Weirdmageddon" draws near.Then the twins are forced to Mt.Ebott, where theyll do the unthinkable...All Rights Reserved

alphys crossover dipper flowey gravityfalls mabel papyrus sans toriel undertale undyne

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Underfalls: The COMPLETE Trilogy To A Gravity Falls/ Undertale Crossover by PixaneFangurl510

The tale of how two twins from Gravity Falls, Oregon fall down Mt. Ebbot, and experience what most other humans have never seen before, and now, all three books are in one place! DISCLAIMER: I DO NOT OWN GRAVITY FALLS OR UNDERTALE, ONLY MY IDEAS AND PLOT TO THIS FANFICTION. THANK YOU

Everys Academy (Remake) Billdip Willdip Killdip by CoNoKiS

The Pines family decided to spend the summer at Gravity Falls when an unexpected letter appeared on their doorstep. The Pines siblings Belle, Mason, May, Tyrone, Mabel, and Dipper will be attending a magical Academy in their grand reopening. They'll be competing with other students in the Academy to have a chance to change the world they know and love either for the better or the worse. Some changes for this fanfic: -Bill never appeared before and after mabel and Dipper first went to Gravity Falls. He'll appear later on. -Ford never got trapped in the whole portal accident, he was able to get in and out of his world as he pleased. He's still an interdimensional wanted criminal. -Stan is the same as we know him in the show, just never faked his death, and helped Ford with his portal thing. -Mabel and Dipper were the first to go to Gravity Falls and after the experience of the traumatic things it had to offer, they begged their older siblings to go with them for the next summer. Which they agreed to and now they are all traumatized, But they'll be even more traumatized after this fic :D

$I've Missed You {Billdip} by PaperBagBoi_$

"Bill. . ." Tears up "I've missed you" "P-P-Pinetree?" *hugs pinetree tight* "Me too" he whispered When Dipper and Mable are 18 they visit Gravity falls again after so long. Dipper has been so lost after the whole weridmageddon thing. . . Dipper slowly realized that he missed a certain Dream demon after all these years. . . Dipper and Mable are running the mystery shack after Soos left. Grunkle Stan and Ford hasn't returned from their adventure, but soon they'll return to see the change. . . Dipper slowly brings Bill back in his life with Mable. . Would Mable be happy with Bill after so long? Will Dipper regret his actions? Will Stan and Ford be happy with this change? Will Mable ship it !?!?! *no one will die in this book* *The show or characters don't belong to me* *bad language*

Dimensional Rifts! A Star vs The forces of Gravity Falls fanfic by ByWolfstar

Dipper is hitting the road with Great Uncle Ford to find a great, evil villain who is working under Bill's possession to cut a dimensional portal into the nightmare realm and fulfill his plan. Prepared with the biggest and most deadly Anti-Bill weapons, they go the most dangerous town ever, Echo Creek, where danger could be creeping at every corner. This is the hardest task ever to dispose of the Mind Demon for good and only a few days to do it. But when they find out Bill is definitely in this town but in the way they think, they have to crunch for time and figure this out fast. With a little help from an inter-dimensional princess and a boy, they must all work together to find the mind demon and get rid of him. But Bill is waiting, and knows there every move. *I do not own SVTFOE or GRAVITY FALLS. If I did this crossover would TOTALLY be a thing.*

Gravity Falls: Summer of Weirdness by Shadow_Ninja51

A new retelling of the gravity Falls story that follows 15 year old Michael pine's and his Twin younger siblings Dipper and Mabel as they're sent to spend the summer with their great-uncle, Stan, in the mysterious town of Gravity Falls, Oregon while Stan has the kids help him run The Mystery Shack, the tourist trap that he owns, the twins along with their older brother try to adapt to the weird surroundings but sense there is something strange about the town and begin to unlock it's secrets but When Dipper uncovers a cryptic journal that offers insight into the town's mysteries, the three siblings use it to their enthusiastic desire to vanquish evil to battle the imminent mysteries that surround them in Gravity Falls . . Note: Gravity falls is entirely owned by Disney and created by Alex hirsch . . Story Cover made by Amano404

Battle Scars. by PaperBagBoi_

Let's say that Dipper never went to gravity falls, but everything else still happens. Mabel defeated Bill with the rest of the town. There both 17. Dipper been to multiple hospitals because of his anxiety, depression and suicidal thoughts. Dipper's father has been abusing him for years. Finally they stopped his father and he's in jail. Dipper doesn't trust anyone at all. He doesn't like being touch by other expect for Mabel . Mabel trying to keep Dipper away from bad people. Mabel finds out that Bill is still alive. Dipper is still the kind and loving brother. gives up anything for her no matter what. One day Dipper meets Bill in his human form. the two have been meeting up in secret because of Bill. Dipper things he's a nice guy until Mabel shows up messing everything up. (bitch). Bill slowly starts to fall in love with the young teen and Dipper starts to fall for the demon as well. Note : Warning for suicidal thoughts, self harm and bad language.

A Summer that I won't forget by PaperBagBoi_

Let's say the Pines Twins never went to gravity falls when they were twelve. They couldn't go last minute because of an family emergency. Simple as that. The towns folk have already moved on and have all agreed to forget what happened. Dipper and Mabel thought it would be a great idea to spend their summer at Gravity falls. They wanted to visit their great uncles. They wanted a nice summer and they always wanted adventures. When Stan and Ford defeated Bill they didn't fully kill him. He was still alive and waiting for someone to release him from his stone prison. Bill wants revenge. But something changes his mind or was this a trick? A demon looking for a second chance or a demon wanting payback?

Darker Perspective by DysfunctionalRequest

Set after the events of "Not What He Seems." "Grunkle Stan, I trust you." The words struck hard in Dipper's heart and he knows that something has changed between him and Mabel after that day. Hurt and alone, Dipper gets a visit from Bill in his dreams. The demon offers him an offer that he has trouble refusing: magic. And so Dipper begins to learn the true secrets of magic with the help of Bill, someone who once was an enemy to him. AKA a story where Dipper joins Bill, and Bill grows to like Dipper and sees him as more than a regular human. Also, the twins are aged up to 15. Burning Pines AU. Now cross posted on fanfiction.net and Ao3 if you prefer a different website. ~Past Rankings~ #1 gravityfalls (1000+) (like Jesus thanks guys) #1 billcipher (1000+) (pretty proud of this :)) #1 Dipper (1000+) #1 Mabel (1000+) #1 Dark Magic (1000+) #1 DipperPines (1000+) #1 Bipper (900)

Bill's Return (Next Summer Gravity Falls #1) -Mabill- ✔ (NOW EDITING) by cmishou74

Mabel and Dipper Pines returned to Gravity Falls, Oregon this summer once again to spend there next adventure! Of course, they expected a normal..well "normal as Gravity Falls can be" but, this summer...things didn't go as they hoped. Bill has returned, and wanting the revenge from the Pines, as well as reeking chaos apon Gravity Falls, he has one problem : He returned as a mortal. The axolotl makes a deal with Bill : Get one mortal to like him for who he really is. Returning as a magician in disguise, he sets out into Gravity Falls, his plans being set in stone. But, some things aren't as easy as he had hoped. As the Pines and Bill are enemies, will Mabel Pines change the Demon's heart? Or will it not be enough? ----------------------------------------------------------------------- ~Optional Part 2~ ●Story after season 2, Everything went down as it did● [Imao this is so cringe BAHAHA-] #7 in billxmabel #4 in Tad #1 AlexHirsh #45 in WillCipher Made: ♤ 7/5/21 ♤ ● I'd appreciate if you will read! ● Readers-Have fun as you read this fan-made book!) *I don't own Gravity Falls or it's characters! Shoutout to Alex Hirsch for making the show!* *The pictures don't belong to me! They belong to their respective owners. Credit to them!*

Unexpected fate [DISCONTINUED] by moonmuuse

{Dipper x Reader x Bill} Gravity Falls was a part of your childhood. You would visit the strange town every summer and Christmas holidays, to spend time with your grandfather who had a huge collection of stories about mythical creatures and amazing places in Gravity Falls. But all good things have to come to an end. You were forced to forget everything about the unique town. You weren't even allowed to speak about it, not to mention you weren't allowed to visit your grandfather. You made a promise you would visit Gravity Falls one day. And when you do, you'll make sure your parents know nothing about it. Will you succseed? What happens when you meet your best friends from Gravity Falls 4 years later? Will they remember you? What secrets your parents are hiding from you? ...who's the one who watches you without you knowing...?

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Underfalls: The COMPLETE Trilogy To A Gravity Falls/ Undertale Crossover cover

Everys Academy (Remake) Billdip Willdip Killdip cover

I've Missed You {Billdip} cover

Dimensional Rifts! A Star vs The forces of Gravity Falls fanfic cover

Gravity Falls: Summer of Weirdness cover

Battle Scars. cover

A Summer that I won't forget cover

Darker Perspective cover

Bill's Return (Next Summer Gravity Falls #1) -Mabill- ✔ (NOW EDITING) cover

Unexpected fate [DISCONTINUED] cover

Underfalls: The COMPLETE Trilogy To A Gravity Falls/ Undertale Crossover

The tale of how two twins from Gravity Falls, Oregon fall down Mt. Ebbot, and experience what most other humans have never seen before, and now, all three books are in one place! DISCLAIMER: I DO NOT OWN GRAVITY FALLS OR UNDERTALE, ONLY MY IDEAS AND PLOT TO THIS FANFICTION. THANK YOU