Within The Barrier (An UnderTale Fanfiction.) - GuessThatWeeb - Wattpad

Story cover for Within The Barrier (An UnderTale Fanfiction.) by GuessThatWeeb

Within The Barrier (An UnderTale Fanfiction.)

Reads 2,700
Votes 235
Parts 13
Time 56m

Reads 2,700
Votes 235
Parts 13
Time 56m

alphys asgore asriel chara dadster deltarune fanfiction fonts frisk gaster genocide harrington mettaton mtt mttbrand muffet papyrus pasifist sans tobyfox toriel undertale undyne undynetheundying videogames

Monsters have lost. Surrendered at the hands of the enemy. They've been locked away underground in a cavern system under Mount Ebbot. No sign of getting out. How will they live Within the Barrier?

Credit to @_zbruh_is_awseome_ on instagram for the cover and for all the help on the book! :D 

This is still in writing phase so I won't be editing Grammer and spelling very much.

WARNING: THIS IS A FANFICTION AND THIS STORY GOES HOW I WANT IT. IF YOU DON'T LIKE IT YOU CAN GO ELSEWHERE. THERE IS A DEFINED LINE BETWEEN CONSTRUCTIVE CRITICISM AND HATE COMMENTS. HATE COMMENTS WILL NOT BE TOLERATED.

Disclaimer: All characters and some of the story line/details belong to Toby Fox or their rightful owners. There may be writings influence by NinnyMouse here on Wattpad and some characters and ideas where given to me with permission to use by _zbruh_is_awseome_ on instagram. 

Notes:  Swearing, gore, or depressing themes may be shown in the book. No sin will be written for said book.All Rights Reserved

alphys asgore asriel chara dadster deltarune fanfiction fonts frisk gaster genocide harrington mettaton mtt mttbrand muffet papyrus pasifist sans tobyfox toriel undertale undyne undynetheundying videogames

Table of contents

13 parts

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Away from home by TWBDeclinaCreshion

You were abused, tortured, and the person who was supposed to be your "Father" killed the only ones you loved, you had enough. You decided it was time to flee. and thats what you did, straight to Mt.Ebbot. You had heard the stories about children disappearing and never returning, but you never anticipated this. ©Undertale and all characters are owned by Toby Fox, and you dear reader, belong to yourself, I just own the story line, so enjoy!

Undertale: Genocide by CassBunnys

"In this world, its kill or be killed" - Long ago, two races ruled over Earth: HUMANS and MONSTERS. One day, war broke out between the two races. After a long battle, the humans were victorious. They sealed the monsters underground with a magic spell. After the war, the monsters retreated into the deepest part of the Underground, which would be called, "Home." - Note: In chapter one i NICKNAME frisk "Sam" Due to the fact you dont figure out their name until the end of pacifist so i had to put a nickname to make it easier to write and read. Sam is a neutral name so it should be fine. - NOTE: All lines with this symbol " * " is going to be in Wing Ding font in the final release of the book. But for now, it is already deciphered for you! - *So yeah! This is book one of my Undertale Series, which will be 2 books in total. *The book is Fanmade of course, Support the original game by Toby Fox. *Since its Undertale, i have to warn you guys obviously that there will be action and mature things. And book one is Genocide, so... *Follow my Instagram: @Djcasso -

L.O.V.E. (Yandere Fem Undertale x Child Reader) by Unidentified562

You live in Ebott City and you hear a story at the beginning of summer about the cursed mountain next to the city. You wanted to do something exciting for the summer and to you... What was more exciting than going to a mountain with a monster on it... Try falling into a hole into the kingdom of monsters where they accept human boys and men with open arms, but treat human girls and woman like the enemy due to them being sealed away by them.

Unexpected Love | Sans x Reader by dacatnxtdoor

You climbed the famous Mt. Ebott to prove to a group of your friends that humans don't disappear when they go up the mountain. While walking around the peak, you trip over a root in the ground and fall forward, expecting to hit the ground. Instead, you were met with open air. As you fell down the large hole, you let out a shrill scream before hitting the ground and blacking out. When you wake up, you find yourself in the Underground where monsters had been banished to by the humans. You meet several monsters down in the Underground, some becoming friends and some becoming enemies. One particular monster though, has been making your heart flutter and your tongue get tied. Sans the skeleton. A new threat appears when a human that had been thought to be dead comes back and threatens you and the entire Underground. Will you be able to stop them or will you be used as a puppet and watch your friends die? Maybe the only thing that can defeat LOVE is love... Author's Note: this was my very first story so sorry if there's bad grammar or confusing scenes, enjoy my awful writing! ((COVER ART IS NOT MINE))

A Jaded Emerald [NOT LOOKING FOR ART COMMISSION] by KTama20

Abandoned on Mt. Ebott at the tender age of five, young Harry's unsurprisingly died, but Death's always had a weird relationship with his variant... Meanwhile, before Flowey's revival as souless talking flower, Sans makes a discovery under the mound of snow, Papyrus has always wanted to be a big brother anyways. *Edited Summary (29/09/2025)

Sacrifices (Undertale FanFic) [COMPLETED] by Brynwyth

Frisk has freed the monsters of the Underground. Finally, monster kind is allowed to return to the surface. It's been 3 years since then. Yet the monsters still struggle to find their place within the world. Most accept the monsters, but there are those who wish nothing more than the complete annihilation of monster kind. Merely sealing them away is not enough. As ambassador for the monsters, it is Frisk's responsibility to fight for everyone's right to live on the surface. But at the same time, an internal battle rages on within her. Not only that, her relationship with Sans is strained. Trust is not so easily regained after the slaughter of one's beloved, despite it all being erased. Or was it really? The memories are still there. *I have lost interest to complete pre story and post story parts. Please enjoy the main story and the extra tidbits.* Chinese Version: http://fav.me/db7h2kg DISCLAIMER: I do not own Undertale. TobyFox is the creator and owner. Cover art does not belong to me. I only edited it. Photo was found off Pinterest. If anyone knows the original artist, please let me know! I'd like to give them credit.

Bravotale by KCJoannaPlays

Undertale belongs to Toby Fox but my AU Bravotale belongs to me. So we start our journey through the underground with a human named Frisk as they traverse the underground they seem to feel like they are always being watched by someone or something because whenever they turn around all they see is a flash of red in the corner or there eye and after that nothing is there but they feel that whoever it is is going to always be watching them, who is it you may wonder Welp just read and find out And that my dear readers is a summary of how everything is the same yet different in the underground.

Love Angels (Frans Fanfiction) (Underwings AU) by AuroraTheDragon174

'•°•°•Completed•°•°•' __--| Description |--__ In a land of mortals and angels, there lives a secret war among the two angel kinds. A fated meeting between these two will change everything. 💞*:･ﾟ✧(ﾉ◕ヮ◕)ﾉ*:･ﾟ✧💞 __--| Featured Ships |--__ Frans Papyton Torgore Alphyne 💞*:･ﾟ✧(ﾉ◕ヮ◕)ﾉ*:･ﾟ✧💞 __--| Trigger Warnings |--__ Slight 18+ content | Gore/Injuries | Angst 💞*:･ﾟ✧(ﾉ◕ヮ◕)ﾉ*:･ﾟ✧💞 __--| Credits |--__ Cover and any other art in this story are not mine Any music is not mine Undertale and its characters belongs to Toby Fox 💞*:･ﾟ✧(ﾉ◕ヮ◕)ﾉ*:･ﾟ✧💞 __--| Extra Info |--__ Does not have any connections to any AUs with the same name

What Went Wrong? by AngelOfTheDead80

~'Disclaimer: This story has a lot of profanity and covers some very very intense or touchy subjects that may disturb some readers. You have been warned.'~ ((Unedited)) After Chara fell into the Underground, they met Asriel a monster inhabitant of the Underground. Soon after that, Chara joins a new family, but their ambition to keep everyone happy goes a little overboard and Chara is flung into a reality of destruction and hopeless wonder. Then many long years later they meet the beloved Frisk, who fell into the Underground, similar to themselves. Eventually everything Chara thought they knew correctly is turned upside down and they as a person are changed forever. ~'The game Undertale belongs to Toby Fox and some of the dialogue is ripped straight from the game itself, too.'~

Unexpected Love: Return To The Surface | Sans x Reader by dacatnxtdoor

This is the second story to "Unexpected Love" so if you haven't read the first book you should probably read that first so you aren't confused. But anyways, enjoy! You wake up on the cold floor in the old lab that Alphys had found. You felt strange and the only life form that you could find in the Underground was Chara, who had somehow gotten out of your consciousness and now looked like a normal human. You find out that six months had passed and a child named Frisk had freed everyone and the barrier was broken. Now, with Chara somehow befriended, you leave the Underground in search for your monster friends. And most importantly... Sans. Author's Note: enjoy my awful writing! ((COVER ART IS NOT MINE))

You may also like

Slide 1 of 10

Away from home cover

Undertale: Genocide cover

L.O.V.E. (Yandere Fem Undertale x Child Reader) cover

Unexpected Love | Sans x Reader cover

A Jaded Emerald [NOT LOOKING FOR ART COMMISSION] cover

Sacrifices (Undertale FanFic) [COMPLETED] cover

Bravotale cover

Love Angels (Frans Fanfiction) (Underwings AU) cover

What Went Wrong? cover

Unexpected Love: Return To The Surface | Sans x Reader cover

Away from home

You were abused, tortured, and the person who was supposed to be your "Father" killed the only ones you loved, you had enough. You decided it was time to flee. and thats what you did, straight to Mt.Ebbot. You had heard the stories about children disappearing and never returning, but you never anticipated this. ©Undertale and all characters are owned by Toby Fox, and you dear reader, belong to yourself, I just own the story line, so enjoy!