Story cover for UnderFalls Tale by Krismiss124
UnderFalls Tale
Krismiss124
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    Time <5 mins
Krismiss124
Ongoing, First published Mar 18, 2023
alphysasgoreasrielaxolotlbillcharadipperfloweyfordgravityfallsmabelmysterypapyruspunssansshackstantorielundertaleundyne
This is an au of Gravity Falls and Undertale. At the start of their 2nd summer at the Mystery Shack, Mabel and Dipper fall into "The Bottomless Pit", also once known as the top of the long forgotten Mt. Ebott. I don't know if this is an existing au, but it sounds fun, so I'm just going to start writing and hopefully I'll get something Awesome from this idea. If anyone had this idea before me, please let me know so I can put your name in the disclaimer, speaking of which: DISCLAIMER: I don't own Gravity Falls or Undertale, I just came up with this idea for fun. I love the show and Video Game, so this is based around both of the characters and places. Also this is apparently a thing called Gravitytale Falls. I did not make that up, and I may not have spelled that correctly. Anyway have a nice time reading.
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alphysasgoreasrielaxolotlbillcharadipperfloweyfordgravityfallsmabelmysterypapyruspunssansshackstantorielundertaleundyne
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ControlledTale by amilllionnames
7 parts Complete
(I DON'T OWN UNDERTALE. The only characters I own are Bailey and Creame.) All the monsters live happily in the underground: until one human ruins everything. Bailey Hill is a normal, 11 year old girl- until she trips, and falls into Mt.Ebott. Quick to befriend the monsters, Bailey is instantly loved by everyone. When monsters start mysteriously disappearing, Bailey is on the case. What she doesn't know, though, is that a small team, co-led by Undyne and Sans, are working as secret spies in the background. After hearing about the disappearances, Bailey thinks she can solve the mystery- but when Bailey has a shocking realization, she realizes that she might not be so innocent after all. ------------------------------------------- Changes: IMPORTANT: Frisk and Chara don't and never exist(ed) Monsters don't mind the underground, so Alphys never did the experiments. Still Relevant: Mettaton never left, and Napstablook is constantly being featured on his show The amalgamates don't exist since those monsters never fell down. Napstablook and Shyren are now younger than in-game, Napstablook - 12 and Shyren - 14. More on Napstablook- Since Mettaton never left, Napstablook is just shy. Everyone knows each other Alphys x Undyne- Already a couple Frisk and Chara don't and never exist(ed) ------------------------------------------- A note from Emma- Hi hoomans! I hope you enjoy this AU I came up with! Happy reading! 😊 10/4/2020: There IS a sequel coming soon! :D
Sans x Reader | Empire by rottenentity
43 parts Complete
(Adult Lazarus here - I wrote this when I was like 14 years old. Forgive me.) Sometimes life gets to the point where you feel like you're a paper airplane. One minute you're soaring, feeling as if nothing could ever get you down. But then the next thing you know, you're falling slowly and nothing that you can do can possibly help you. You end up falling and crashing into whatever's below you and the heights that you had once reached. Then it starts all over again - becoming a vicious cycle. Someone picks you back up and throws you, making you soar yet again. But then they watch as you fall, not stopping you or saving you from the hard impact you meet with the ground. The process repeats itself over and over and there's no way you can stop it. After all, you're made of paper - you're delicate, fragile. You're thrown, you soar, you fall, you're picked back up, then it happens all over again until you break - becoming bent and broken from your head to your toes. Until you crash so much that you're ruined - then you're thrown away. At those times, you know that you at least have one person who will fix you. He calls you his queen, as any king would whilst in power of the empire you both strive to build together. This person is your home - your empire. - #6 in Quotes [03.12.21] - #2 in Sans [10.21.21] - Undertale does not belong to me. - Artwork/Music does not belong to me. - Also, I apologize for any of the spelling errors. I type quickly and so I do not really realize if I misspell a word or two. Sometimes I do go back and edit out the mistakes with spelling and such.
UnderCorrupt by ANinnyMouse42
54 parts Complete
I have an Idea for an Undertale AU. And apparently, it's a good idea? So here, have a book. --- Long ago, two races ruled the earth. But when a plague of corruption swept through one species, causing a half of their population to attack the humans, the humans thought it safer to banish all the monsters underground. Now, the Underground is a Battleground. The battleground of the Pure and Corrupt armies. This Is UnderCorrupt. -- COMPLETED!
L.O.V or love? by Mongalover
18 parts Complete
My whole life was on the surface, I have heard a people climbing Mt.Ebott and disappearing. My sister, Frisk, was one of them. Me and my sister was playing tag, ignoring our parents warnings, and she just... "Frisk? Frisk!! FRIIISK! Where are you, fuck! Please frisk your scaring me!" there was no answer, " MOM, DAD!" I ran, I don't know why. I was so stupud, but...
A Strange Feeling (Sans X Reader) by Sak423
14 parts Ongoing Mature
Do not expect consistent updates as life gets busy 🙃. This is rated mature because of strong language. You are a 24 year-old in college and have loved Undertale since the beginning. You enjoy all the aspects of the game; the story, the lore, the music, the backgrounds, and most importantly the characters. You've started having a strange, almost malicious feeling related to the Genocide run and that creeps you out. So, you start a pacifist run and after a while, you fall asleep. You wake up in Undertale and thus begin your new journey. Through your travels, the strange feeling comes back, but as a different emotion. Perhaps the only one that can help you with this feeling, is a certain punny skeleton. (I tried my best I'm not very good at summaries 🥲.) (Also I am so sorry for the kinda weird writing this is my first time writing a story. So I welcome constructive criticism.) Started: January 26, 2025 Ended: ???
Fight or Mercy | Underfell x Abused! Reader by YuniccAfton
16 parts Complete
[2nd book] ((COMPLETED)) {Undertale AU - Underfell} [WARNING:ENDING AND PLOT IS VERY CRINGEY] "Long ago, two races ruled the earth, the Humans and the Monsters. One day, war broke between the two races. Many have fallen to serve their kind. Years later, the humans were victorious. With their magic, seven of their strongest wizards sealed all the monsters underground with a magical barrier. Only a human soul could pass. Mt. Ebott 201X, they say those daring enough to climb up the mountain.... never return. " "Leave them, Y/N! Run! " ___________________________________________ I'm a Undertale addict. I freaking love the story line and characters! One of my favorite AUs is Underfell so I'm finally making an X reader. Also, if there are wrong spelling or grammar, please tell me. I'm using GoKeyboard. Enjoy my Crappy 2nd book!
Memory Lane [DISCONTINUED] by moonmuuse
11 parts Complete
(Sans x reader) !~**~! "How did you get down here anyway?" Sans asked, turning to me with a raised eyebrow. Do skeletons even have eyebrows? Huh. "I...don't know. I don't remember falling, I don't remember anything. Everything's just a blank page." I shrugged. "Where is this "Underground" anyway?" I asked, turning to him as well. "Mount Ebott. That's what humans named it and we kind of went with that. And I'm surprised you don't remember anything. Usually humans remember who they are and how they got here. Strange.." He said in a curious tone, more to himself than me. (Undertale x reader, what else do ya need to know? :3 )
Fallen Under by VenomQuill
39 parts Complete Mature
Fallen Under is a full-length fan-novel of the game 'Undertale' set in 'Underfell'. This work will not have anything sexually explicit, though there is a (major) gore warning. It is light of heart, but some dark themes including suicide, abuse, and murder are explored. Mt. Ebott is famous for the woods that a child may wander into and never return. In legend, monsters snapped up children from villages, hid in dark corners, and ate the souls of the weak or unprepared. When a young child chooses to flee into the mountain rather than face human capture, they find out that these monsters might not just be characters in old children's stories. Frisk Foster, an eight-year-old child cursed by hereditary blindness, falls into a cavern full of merciless monsters, all of which want nothing more than to steal their soul. Armed with only their sense of justice and kindness, Frisk must travel across the underground to get back home. Yet when faced with the terrible truth of the consequence of their escape, can they truly find the will to complete their mission? Originally posted: Deviant Art (http://fav.me/daq2e06) Original Ending: Archive of Our Own (http://archiveofourown.org/series/615394) Alternate Ending: Fanfiction.net (https://www.fanfiction.net/s/12637068/1/Fallen-Under)
The First Human [X Sans] {COMPLETE} by RaeTheStar
39 parts Complete
Imagine Undertale, but Chara never showed up. Chara wasn't the first human in the Underground. What if a glitch occurred, and you fell down instead? You fell into the Underground, but you cant remember your previous life. Now, you are surrounded by strange monsters, who have also never seen a human before. Will they let you live? [written 2017]
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Slide 1 of 9
ControlledTale cover
Sans x Reader | Empire cover
UnderCorrupt cover
L.O.V or love? cover
A Strange Feeling (Sans X Reader) cover
Fight or Mercy | Underfell x Abused! Reader cover
Memory Lane [DISCONTINUED] cover
Fallen Under cover
The First Human [X Sans] {COMPLETE} cover

ControlledTale

7 parts Complete

(I DON'T OWN UNDERTALE. The only characters I own are Bailey and Creame.) All the monsters live happily in the underground: until one human ruins everything. Bailey Hill is a normal, 11 year old girl- until she trips, and falls into Mt.Ebott. Quick to befriend the monsters, Bailey is instantly loved by everyone. When monsters start mysteriously disappearing, Bailey is on the case. What she doesn't know, though, is that a small team, co-led by Undyne and Sans, are working as secret spies in the background. After hearing about the disappearances, Bailey thinks she can solve the mystery- but when Bailey has a shocking realization, she realizes that she might not be so innocent after all. ------------------------------------------- Changes: IMPORTANT: Frisk and Chara don't and never exist(ed) Monsters don't mind the underground, so Alphys never did the experiments. Still Relevant: Mettaton never left, and Napstablook is constantly being featured on his show The amalgamates don't exist since those monsters never fell down. Napstablook and Shyren are now younger than in-game, Napstablook - 12 and Shyren - 14. More on Napstablook- Since Mettaton never left, Napstablook is just shy. Everyone knows each other Alphys x Undyne- Already a couple Frisk and Chara don't and never exist(ed) ------------------------------------------- A note from Emma- Hi hoomans! I hope you enjoy this AU I came up with! Happy reading! 😊 10/4/2020: There IS a sequel coming soon! :D

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