Underfalls: A Gravity Falls/ Undertale Crossover - Ally the Trash Bin - Wattpad

Underfalls: A Gravity Falls/ Undertale Crossover

PixaneFangurl510

Reads 41,588
Votes 1,180
Parts 13
Time 1h 0m

Reads 41,588
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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13 parts

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Return of the Lost Prince by _Winter-Wolf_

The Dream Flower~ One of the most rarest flowers ever. Only a few exist now but no one can find them. They are considered only myths or legends. Some push away this magical flower as just a children's bedtime story Prince Bill thinks other wise. One day on his special visit to the kingdoms most amazing town he over hears this story and soon does his research. To his belief he can find where these flowers could be and makes it his quest to find them But what will happen when he finds more than just these magical flowers? Dipper Pines. Hes never met his real parents nor does he have any memory of them. His "great uncle" Ford keeps him from the world. In a hidden cave deep in the forest Dippers gifted with the power to watch over these flowers. He's the only one that can control the power of these flowers To what extent will dipper go to just leave the cave he's lived his entire life in. What deals will he make just to explore the forest he was never allowed to enter **Warning*** Slight abuse Strong Language A little gore * will make a warning before it* None of the art is mine Gravity Falls and it's characters don't belong to me only my OCs To be honest as I think of it the beginning is kind of like tangle but its not that Au. Its very different just slightly similar if anyone could even tell

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

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.

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

Gravity Falls X Reader by Multiplefandomsgirl

Triplets (Y/n), Dipper and Mabel Pines are sent to spend the summer with their great-uncle, Grunkle Stan, in the mysterious town of Gravity Falls, Ore. Grunkle Stan has the kids help him run The Mystery Shack, the tourist trap that he owns. The triplets try to adapt to the weird surroundings but sense there is something strange about Gravity Falls and begin to unlock its secrets. When (Y/n) uncovers a cryptic journal that offers insight into the town's mysteries, she, Dipper and Mabel use it and their enthusiastic desire to vanquish evil to battle the imminent mysteries that surround them.

Out of the woods (Pinescone) by LivCipher2

This is (obviously) an AU (Alternative Universe). (I'm not quite good at writing funny stuff, but I'm good at writing things full of feels and cute couple moments, and this is a warning, I guess, I'm not sure) *** Back to Gravity Falls, now with fourteen years old, after that horrible incident with well, I guess everybody knows about it, but in case you are wondering, the horrible awkward incident where Bill tried to take over the world and turn it into a big freak party, which is obviously, not weird at all. Since Stan and Ford are back from their adventure, the twins are finally back to the weirdest town in the world. Of course, it wouldn't be Gravity Falls if there wasn't a portal opening, a portal that had already opened in other places in the world, and that was now, in Gravity Falls. As if it wasn't enough, an old enemy of the Pines family might be back, way worse and way more terrifying.

Bloodfall (An Undertale AU) by BlackStormWolf

Ever since the death of his younger brother. Things have gone downhill in the surface world for Sans. Alphys died a few months after Papyrus to a disease, Mettaton and Undyne, especially Undyne, had fallen into a depression. Flowey dissapeared into mt. Ebott, not to be found and Sans is fighting depression and insanity. One day, Sans discovers a suspect to his brother's death. A being that is trapping anyone who had either fallen into Mt. Ebott or stayed behind in snowdin for a while. Sans, along with Frisk and Undyne, go into the underground themselves to confront this being. They must encounter the Bloodfall that traps and kills anyone who dares pass by waterfall. (This takes place after a true pacifist run if one killed Sans in a Genocide run, but reset their game before getting to Asgore(I did this in a way to quit the Genocide route). This is if Frisk choses to do this the Pacifist way. I might make a Genocide one in Story Shorts. Also, My Sans is a human, but feel free to interprate him as a Skeleton if you ever choose to use this AU. Just credit me!)

Weirder Things (Male OC X Wendy Corduroy) by Cowboy-Alchemist

Cross-posted on Fanfiction.net. Patrick Pines is just another average 16-year-old boy. He like video games, old B-movies, drawing, and reading. He was serious, fun-loving, and brave. And he also has anger issues. Among his family and friends, he was a protector, a moral compass, and a voice of reason. Just like every teenager his age, he was ready to spend another summer at home. But this summer will be different. When his parents learn that his aunt and uncle were going to be sending his cousins, Dipper and Mabel, away from home, Patrick is sent with them. Together, they go up north to a sleepy little town called Gravity Falls, Oregon. To stay with their Great Uncle Stan in his house that he converted into a tourist trap called the Mystery Shack. All things were going normal and boring for them beginning, but there was always a palpable feeling that the woods all around them hide something of a dark secret. And then one day they find a mysterious journal in the woods. The moment they opened that book, it becomes clear to the three kids that things were not normal in this remote town. From aliens, conspiracies, cryptids, strange and violent deaths, ghosts, mysteries, other dimensions, and the unexplained. Gravity Falls would prove itself to be the very core of paranormal activity, supernatural phenomenons, and mysterious creatures. Follow Patrick as he and the twins help Stan run the Mystery Shack, while also doing everything he can to protect his family from the weird and dangerous supernatural forces that threaten to destroy them, as they investigate the local mysteries and unlock the secret of weirder things going on in of Gravity Falls. WARNING!: Some incorrect spelling and grammar.

A Demon's Mate (Bill Cipher x Reader) by KitKatMochiiii

(Y/n) (m/n) (l/n), a small ten years old girl was sent to Gravity Falls by her parents for summer. She meets her cousins Mabel and Dipper and more people. She enjoys her time there, but everything changes when she sees a particular dream demon, who for some reason feels connected to her. Ten years after Weirdmaggedon, everything changed, for the better that is, and (y/n) changed too. Before, she was ten, now, she is twenty and is finishing her last year. Bill changed too and so did Dipper, Mabel and the others. What happens when she finds a certain someone in front of her house? How she feels when the deity 'Axolotl' himself comes to talk to her? She discovers more about the dream demon, and herself. But her life is wrecked when the Earth is in danger. What will she do? Read to find out. I don't own Gravity Falls or You. I only own the plot and some added characters. (Edit: I don't how it happened but, (at a particular date I don't remember) #1 in billcipher #1 in gravityfalls #9 in billxreader I'm shocked....)

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!*

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Slide 1 of 10

Return of the Lost Prince cover

Everys Academy (Remake) Billdip Willdip Killdip cover

Battle Scars. cover

Gravity Falls: Summer of Weirdness cover

Gravity Falls X Reader cover

Out of the woods (Pinescone) cover

Bloodfall (An Undertale AU) cover

Weirder Things (Male OC X Wendy Corduroy) cover

A Demon's Mate (Bill Cipher x Reader) cover

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

Return of the Lost Prince

The Dream Flower~ One of the most rarest flowers ever. Only a few exist now but no one can find them. They are considered only myths or legends. Some push away this magical flower as just a children's bedtime story Prince Bill thinks other wise. One day on his special visit to the kingdoms most amazing town he over hears this story and soon does his research. To his belief he can find where these flowers could be and makes it his quest to find them But what will happen when he finds more than just these magical flowers? Dipper Pines. Hes never met his real parents nor does he have any memory of them. His "great uncle" Ford keeps him from the world. In a hidden cave deep in the forest Dippers gifted with the power to watch over these flowers. He's the only one that can control the power of these flowers To what extent will dipper go to just leave the cave he's lived his entire life in. What deals will he make just to explore the forest he was never allowed to enter Warning* Slight abuse Strong Language A little gore * will make a warning before it* None of the art is mine Gravity Falls and it's characters don't belong to me only my OCs To be honest as I think of it the beginning is kind of like tangle but its not that Au. Its very different just slightly similar if anyone could even tell