Best Undertale books
15 stories
Wilted [ Sans x Flowerfell! Reader ] by morrow-
morrow-
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You were afraid. For the first time in your life, you were truly afraid. You weren't afraid of the never-ending darkness that had now consumed you. You weren't afraid of the monsters underneath your bed. You were afraid of the flowers.
Fall of the Empire [ Sans x Reader ] by morrow-
morrow-
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You weren't quite sure what you were. As time progressed, you had been called many things. Hope, future, a new beginning. You weren't quite sure why they called you those things, for each passing day you say locked in a cell, waiting for the freedom that would never come. You weren't alone. You grew fond of two other experiments whom you nicknamed Sans and Papyrus. The routines seemed to grow normal, coma-induced trances, painful tests... And then nothing... One day, the pain stops coming. Slowly, the three of you venture outside of the prison and discover that there is a world beyond the cell.
Divided [ Sans X Reader ] by morrow-
morrow-
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Almost four years marking the anniversary of monster kind reaching the surface, the human ambassador Frisk goes missing. Severing the link between the two species, an all out war breaks between humans and monsters. After bloodshed on both sides, monsters emerge victorious. Yet somehow a miraculous town in San Francisco has evaded the warfare and even has an orderly society. And despite everything, Sans keeps encountering a girl who has saved his life one too many times. When your fate and Sans' intertwine, it becomes apparent that the relationship between the two of you extend beyond this timeline. You are plagued with memories of a distant life and Sans begins to hallucinate visions of a not so distant past. Insanity seems to be eating away at the two of you and it's only a matter of time before someone cracks.
Chainsmoker [ Gaster!Sans x Reader ] by morrow-
morrow-
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Routine. The entirety of every living thing is dominated by it, human or monster. Everything HAS to be the same. It was in this that you were the exception. For you everything was new, every time line a detailed altered in order to satisfy your sadistic desire for a new ending, whether it be only a few details of dialogue altered or something else entirely. Monsters you once considered family you now butcher and slaughter without a second thought, after all, that's what the Reset is there for, right? And all at once it stops. Your small hold over the Underground is ripped away from you and you are thrown into a dying timeline, monsterkind's final attempt at self-preservation. You're alone, completely and utterly alone. Except one. And he has a bone to pick with you.
Murder in the Alley [ Dusttale!Sans x Reader ] by morrow-
morrow-
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He killed them all. Dust, down the waters of the the forest it runs, through the veins of the skeletons and the demons that prowl the night. It's the silent enemy, the adversary that slowly chokes and brings down entire armies to their knees. None can oppose it for none have the will or the strength. And it is the dust that emerges from the mouth of a mountain that overlooks a city, the dust that creeps and crawls through the forest and down the alleyways. It is the dust that wraps its bony hands around the throats of the damned ignorant enough to walk the streets, squeezing until the last heartbeat thrums. You are a detective in this city, a quaint area with little crime and a police force hopped up on Dunkin Donuts. But when a string of murders plagues the town, you are thrown on the case following cold leads and an ominous trail of dust. But one night, when you catch wind of a scream and follow it through the dark, you find a skeleton and the rest is history.
Before the Storm ( Sans x Reader ) by morrow-
morrow-
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There's something wrong with the timeline. You've lived in an underground crypt with cracked green walls for as long as you can remember. And that's entirely the problem, you can only remember so much. Even as tortures and experiments continue without end, you're plagued with nightmares and glimpses into a different life, a life outside the green walls that you've been trapped inside for your entire life. There's a demon in the lab. Somewhere, you're sure of it, the scientist whom you have learned to hate is keeping a secret, another human besides yourself locked away. You don't know why or how they're connected to you, only that their name is Kris and they might be the answer to everything. There's something wrong with the timeline. And the whole universe might be thrown into chaos and bloodshed before you can fix it.
Supernova (Ink!Sans x Reader) by morrow-
morrow-
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The multiverse is in ruins. In the aftermath of a bloody war between Nightmare and Ink that cost the live of billions, the painter and the few remnants of his followers find themselves picking up the pieces of a multiverse that seems to be on the brink of collapse. Universes large and small have been erased from existence, forever altering the stability that once rang throughout all of creation. Amidst the radiation and the chaos from the war, a few strings of coding come together to form a strange creature that is not bound by the laws of space and time, a being whom might be the very thing that pushes the multiverse into eternal night and silence. And even in the dark and the shadows, amongst the retreating chaos and suffering as the first glimmer of hope emerges, a small fragment of a mysterious soul suspended in a vile lies in wait, promising a new hell all the while.
Saving Whats Already Broken (NM x Reader) by Catastrophic_Life
Catastrophic_Life
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Y/n is a potions healer, over a couple days Nightmare turns to the usual Canon self, but he doesnt leave without you, he keeps you with him in his castle, using potions and typically nothing wrong happens, until the star sanses try to save you, on many occasions, Second x reader, first one is in one of my first books, please have a look! this is completed, but will have a second book- Fixed Hearts(a nm x reader)
~ 𝙳𝚒𝚟𝚒𝚗𝚒𝚝𝚢 ~     [𝐷𝑟𝑒𝑎𝑚 𝑥 𝑅𝑒𝑎𝑑𝑒𝑟] by dream_syzygy
dream_syzygy
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100 years after the tragic events of Dreamtale, the two brothers continue a war of hate and love. Any AU unfortunate enough to get in the way of the darker brother's path is either conquered or destroyed. Your universe, Recoverytale, is a peaceful universe. Monsters and humans live together in harmony, and you simply love helping others. Everything was absolutely perfect-yet it felt like something was missing. But then the attack happens, and you're pulled into a whirlpool of magic, emotions, and more universes than you can remember. But don't worry. You'll have a new team by your side. And who knows? Maybe you'll find that missing piece. (It is highly recommended that you read 'Dreamtale: Origins' before this book.) [All characters belong to their respective creators. I am only the creator of Recoverytale/swap.] -Cover Art by Unknown- Book 2 of the Dreamtale Trilogy
UnderTale One-Shots by TheAlaskanWolfie
TheAlaskanWolfie
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Just random one-shots that I think of and or One-Shots that are requested which please I need some more. Tags Will Get Updated As People are Introduced