A tale of Mages and Monsters (cancelled) - Elementisphere - Wattpad

A tale of Mages and Monsters (cancelled)

Reads 6,958
Votes 327
Parts 26
Time 6h 5m

Reads 6,958
Votes 327
Parts 26
Time 6h 5m

3rdperson crossover firststory gaster gasterbreaksbsrrier harrypotter harrypotteruniverse newmagicsystem papyrus plscritique sans undertale undyne wdgaster

The barrier has been broken. Not due to SOULs, but due to a successful experiment by Doctor Gaster. Now, monsters must assimilate into the human world, where, apparently, the mages are in hiding. Hogwarts school is always a safe place from outside politics, but how will it adapt with literal monsters in its walls?
Featuring Sans as the main character! (Multiple POVs at certain points, and maybe a few chapters with a different main character?)Public Domain

3rdperson crossover firststory gaster gasterbreaksbsrrier harrypotter harrypotteruniverse newmagicsystem papyrus plscritique sans undertale undyne wdgaster

Table of contents

26 parts

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We Speak In Hands (Gaster x Female!Reader) by OreoDaSkeleton

Gaster is the current royal scientist, set with a mission to break the barrier and free monster-kind from their underground prison. His loyalty and persistence to the task is clear, since he'll make whatever sacrifice necessary to complete it. However, even a perfectionist can be blind to some of their own flaws. Gaster has a habit of pushing things or himself too far. An accident occurs in the lab. Whilst trying to save him; one of his lab assistants, Y/N, gets injured. Burdening himself with even more pressure and guilt to fix it, Gaster thinks that doing all of her work for her will cover up the incident. Still, the sad reality is that the damage can't be undone. Well, Gaster ends up spending more and more time with her. As a result, both of them gain an entirely new perspective of the other, they aren't just another monster in a lab coat anymore. Hey! It's Oreo aka Writer~San! Undertale, it's characters, and it's fanart do not belong to me. However, the story does!!! I hope you enjoy it! (^w^)~

Darkness' Eternal Bride (Gaster x Reader) by xsfolia

WARNING: THIS CONTAINS HIGHLY MATURE CONTENT (BLOOD, VIOLENCE) READ AT YOUR OWN RISK Money can change a lot of things. It can even change your destiny. Plunge yourself into a life of romance, science, disappearance and misunderstanding. ________________ "When you get better, I'd like to kiss you" ... Gaster only wanted to conduct an experiment. He surely didn't want his life to be taken over by weird feelings. He also wanted the only thing he couldn't really have. He wanted you. What will he obtain? Will his research finally be completed? Or will he have to start another one? As for you, will you be able to move on from the past? Words count: 81.390 Also contains mentions of nsfw [Rankings: #1 in #gaster (08/21/2022), #5 in #xreader (08/21/2022)]

An Illness ~ A GasterBlaster Sans Story by JoymerLeMessiah

Sans is struggling with an unexpected, and incomprehensible...illness. With the help of Papyrus and other friends Sans will surely make it out of this conundrum... right? ~Characters belong to: Toby Fox/creators of Undertale ~Any and all character thoughts/descriptions/etc. are from me -cover original image: https://img00.deviantart.net/8d12/i/2015/329/1/c/it_s_okay__you_can_cry_now_by_lemonsandlemonade7-d9i1gq9.jpg

What Lies Inside (Gaster!Sans x Reader ) by Jaethefallenhuman

"You know sweetheart, lying doesn't get you anywhere with me." He said lighting a cigarette and placing it in between his teeth. Vanilla, leather, and smoke is quite the intoxicating smell. "I'm not lying, also who gives you the right to judge if I'm lying or not?" Something flickers inside me, a warm burning feeling that fuels my anger with this asshole. Walking up closer to me he pins me against the wall, smoke dances around his skull in a vary of swirls and curves. "Let's get something straight dove, I am your worst nightmare and I am your best daydream. I can see right through people, ironic right? There's something about you, I know you're hiding something inside." He really is good at seeing through people, but the thing is I'm not like anybody else. The media I use in this book does not belong to me, they belong to their rightful owners! Gastersans is NOT my original character ! He was created by Borurou Undertale was created by Toby Fox Highest rankings #1 Gatersansxreader #1 Gastertale #19 Gastersans

Stone Cold Pacifist (Horror Sans x Reader) by ReapingZen

PLEASE READ BEFORE GETTING INTO THE STORY. Your name is (Y/n), and you play the role of an unusual pacifist. In the story of Horrortale, your unique soul allows you to see WD Gaster who no longer holds a powerful connection with the underground due to the inactive core. After your parents are killed, Gaster makes a deal with you. He will help you extract revenge on your parent's murderer, and in return... you were going to fix the core in the underground. While Sans failed to do it when everyone went insane, you knew what you had to do because well. The creator of the core told you everything that you needed to know. The real trick isn't the resources that you've been gathering during your time on the surface for the job, it's the things that are in the underground that you have yet to obtain. While it is true that you have a lot of experience with fighting and a high amount of LV thanks to Gaster's guidance... you now decided to stop killing, and start saving. ...... But can a stone cold pacifist truly manage her way through Horrortale? Okay, a quick note. This story is rated mature, blood, gore, some more sensitive things that you might find extremely suggestive. Since people are enjoying my Nightmare x Reader story, I decided to do a little bit extra. My updates with this book will be a bit slower. (Totally didn't write this story because I wanted to do a drawing of horror for the cover.) This story is kind of a slow burn, but unlike my other story, the reader is no pushover. Like in the The King's Queen, the cover DOES belong to me, so please do not steal it, etc. Remember these important keys when it comes to reading the story! (Y/n): Your name (E/c): Eye color (H/l): Hair Length (H/c): Hair color (S/c): Skin color (F/c): Favorite color

I'm Not Normal! (Undertale) by looloo900

The year is 201X, monsters who once roamed the surface have been banished again after 1 year, no more magic remains from the monsters, except for one child. Georgia Corona. WD Gaster's daughter is the only human with both a human and monster soul, as well as being the only human to teleport, summon bones, blasters and heal monster souls. Georgia is not an ordinary teenager, she doesn't spend time revising, but visiting the underground to see her father, helping him with scientific projects. As other teens would be partying, Georgia would be teaching herself how to control her powers when she's in danger to prevent anyone accidently getting hit by a bone or a Blaster. Georgia has normal, human flesh hands, apart from one minor detail... They have holes in them. One gift from her father is convincing full human hand looking gloves. She doesn't take them off. As the shy teen moves further into High School, people questioning her 'hands'. Would she crumble under pressure and reveal? Or turn dark to keep her secret hidden? (I do not own Undertale - Toby Fox does).

Universal Surface Angel by Lithriel

Reader insert. What if W.D Gaster didn't just get split between time and space, but actually ended up in your world in an abandoned hospital you called home? Your were a young child he decided to use as experiments to test human determination in said world and breaks physical laws to test human possibility? He knows of the powers you gained from his experiments... all but one, this one allows you to tear realities just enough to teleport into them. Knowing of Undertale you felt bad for the monsters stuck below in their world and wish to help them, but something goes wrong and you end up going to certain AUs and helping them, gaining the attention of some bad skeletons who now desire your power for them-selfish-selfs.

the Undertale Adventures by Nanmaku113

What, if you meet Sans and get a crush on him? You two would move into the underground and experience some funny adventures together! Get ready for: The Undertale Adventures ~Pibs

Undertale:Secrets by ItIsComic

Remaster on my page - check it out! Sans has had an interesting past. A past that even his beloved brother barely even knows of. A past that he wishes could remain a secret. But when the questions start being asked, what does he do? These questions seem so little, yet they cause so much to happen. One little question. "Who is ??????" can change so much. A chain reaction from a single sentence can cause an entire world to crumble. Or maybe two. This is my first book so dont expect anything great. Inspirations: The "Better Times" trilogy by: @ANinnyMouse42 "Royal Blue" by: @dealialestine Started: 24th May 2021 Finished: 29th December 2021 A full 7 months of great fun with this book! Cover art by someone? I couldn't find the original owner :( Undertale by Toby Fox

Reincarnated as Sans twin brother by Sansdoll123

The reader wakes up to a new life as a monster skeleton. In a new world, that's filled with monsters, humans, and magic. But instead of living their new life to the fullest, they will have to survive Gaster's experiments and war with humans. Just because Asgore became mad for absolute control over his citizens and the humans. Will the reader and his brothers find their freedom and a place to call home or die trying?

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Slide 1 of 10

We Speak In Hands (Gaster x Female!Reader) cover

Darkness' Eternal Bride (Gaster x Reader) cover

An Illness ~ A GasterBlaster Sans Story cover

What Lies Inside (Gaster!Sans x Reader ) cover

Stone Cold Pacifist (Horror Sans x Reader) cover

I'm Not Normal! (Undertale) cover

Universal Surface Angel cover

the Undertale Adventures cover

Undertale:Secrets cover

Reincarnated as Sans twin brother cover

We Speak In Hands (Gaster x Female!Reader)

Gaster is the current royal scientist, set with a mission to break the barrier and free monster-kind from their underground prison. His loyalty and persistence to the task is clear, since he'll make whatever sacrifice necessary to complete it. However, even a perfectionist can be blind to some of their own flaws. Gaster has a habit of pushing things or himself too far. An accident occurs in the lab. Whilst trying to save him; one of his lab assistants, Y/N, gets injured. Burdening himself with even more pressure and guilt to fix it, Gaster thinks that doing all of her work for her will cover up the incident. Still, the sad reality is that the damage can't be undone. Well, Gaster ends up spending more and more time with her. As a result, both of them gain an entirely new perspective of the other, they aren't just another monster in a lab coat anymore. Hey! It's Oreo aka Writer~San! Undertale, it's characters, and it's fanart do not belong to me. However, the story does!!! I hope you enjoy it! (^w^)~