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  1. Tags
    Summary

    18 undertale AU skeletons living in one house? great idea! not really. but hey, it's amusing to watch them 'try' to get along with each other. all in all its really just never ending problems and angst.

    follow our blog for updates https://www.tumblr.com/blog/theunderskelleau

    *note that we don't own any of these characters except bop sans*

    Language:
    English
    Words:
    91,705
    Chapters:
    24/?
    Comments:
    233
    Kudos:
    130
    Bookmarks:
    10
    Hits:
    2689
  2. Tags
    Summary

    Sans didn’t have much experience with dying, but he was pretty sure you weren’t supposed to wake up in bed without so much as a scratch on you.

    Language:
    English
    Words:
    9,131
    Chapters:
    7/?
    Kudos:
    5
    Bookmarks:
    3
    Hits:
    124
  3. Tags
    Summary

    What would happen if mages were still around, hiding in plain sight? This story isn't for the faint of heart, you've been warned.

    (This story is a culmination of all my interests so you may see references to other games, books or bits of media.)

    Language:
    English
    Words:
    32,236
    Chapters:
    12/?
    Comments:
    8
    Kudos:
    26
    Bookmarks:
    6
    Hits:
    358
  4. Tags
    Summary

    It’s been forty years since monsters came to the Surface, and five years since you moved across the country to live on the west coast. You were born with magic sensitivity, like thousands of other humans since the destruction of the Barrier, and the closer you move to the source of magic the happier you feel. It helps that one of the best law schools in the country isn’t far away. To make ends meet while in school, you work for your cousin in his tattoo parlor that employs humans and a very handy monster.

    An unknown, and dashing, skeleton monster walks through the doors one winter with unknown intentions. Now, he’s asked you on a date, you’ve met Frisk (the Frisk! Crazy!), and you’re the happiest you’ve been in years. Who would have thought this holiday season would give you such a gift?

    But be careful, because even on Christmas, things can be too good to be true…

    Language:
    English
    Words:
    16,277
    Chapters:
    6/15
    Comments:
    16
    Kudos:
    22
    Bookmarks:
    3
    Hits:
    195
  5. Tags
    Summary

    One night, after closing his restaurant, a fire elemental with a turquoise soul of Loyalty finds something...extraordinary.

    A world of both possibilities and pain has opened up to him.

    Question is:

    Will he take the chance?

    Language:
    English
    Words:
    720
    Chapters:
    1/?
    Kudos:
    11
    Bookmarks:
    2
    Hits:
    56
  6. Tags
    Summary

    -The goat prince was about to answer but the girl next to him beat him to it. “CHARA! HELP! THERE’S STUPID TIME-SPACE SHENANIGANS AGAIN!”-

    -“Just when I thought today couldn’t get any weirder.”-

    Everyone had questions but no one had answers and some were more impatient that others. Eventually things escalated into a giant argument wherein everyone was screaming at everyone else along with their own duplicates.

    Disclaimer: Neither one of us owns Undertale (Because why the hell else would we be writing fanfiction). But one of us is a shipper. Big Time. This is a crossover between two current stories Be Not the Bride and Once More, Never Again. This is just something we're doing for fun while developing our characters. Enjoy ^_^

    Language:
    English
    Words:
    1,649
    Chapters:
    2/?
    Kudos:
    3
    Hits:
    71
  7. Tags
    Summary

    It has been one year since Frisk freed the monsters. Asriel is still missing, and dear Chara is still trapped inside his head. Meanwhile, Sans confronts Frisk about his special power. The ability to turn back time. The ability to awaken the dead. The ability to play God. This power should not be taken lightly.

    Language:
    English
    Words:
    157,603
    Chapters:
    35/?
    Comments:
    186
    Kudos:
    269
    Bookmarks:
    21
    Hits:
    7060
  8. Tags
    Summary

    In a world were humans have redeveloped magic, or "quirks", and monsters are trapped underground, a child falls underground and is SAVED by a monster named Toriel. Will the fallen child adapt to their new home?

    Language:
    English
    Words:
    2,586
    Chapters:
    2/?
    Comments:
    7
    Kudos:
    11
    Bookmarks:
    3
    Hits:
    145
  9. Tags
    Summary

    Contains: Fontcest and Skelepreg The resets keep happening, and Frisk keeps killing everyone. What will Sans do in this latest reset with his newest burden? Will he be able to stop the killing cycle and live the life he had always dreamt of?

    Language:
    English
    Words:
    45,595
    Chapters:
    27/?
    Comments:
    30
    Kudos:
    272
    Bookmarks:
    21
    Hits:
    7519
  10. Tags
    Summary

    "We died, woke up, traveled dimensions, got essentially adopted by the royal family, got chased into an active volcano, received a doctorate, watched our god kids commit suicide, helped our best friend commit murder, fell for our other best friend, accidentally created life and then accidentally took it, and finally we just made our own son kill us again. Am I forgetting anything else....?"
    -Ch 27

    Arc 1: Chapters 1-26
    Arc 2: Chapter 27-??

    Edit: On Short Hiatus until Dec 1

    Updates every Friday and sometimes Monday.

    Series
    Language:
    English
    Words:
    32,235
    Chapters:
    36/?
    Comments:
    233
    Kudos:
    115
    Bookmarks:
    19
    Hits:
    2094
  11. Tags
    Summary

    It only took five years after the monsters escaped from Mount Ebott for the world to go to hell. You and your closest friends are trapped in a dangerous part of town with no stable income. There may be a way out; unfortunately, it's gonna take a lot more than a few broken bones to survive.

    Language:
    English
    Words:
    1,549
    Chapters:
    1/?
    Kudos:
    5
    Bookmarks:
    1
    Hits:
    45
  12. Tags
    Summary

    It's over. Frisk has made their fatal mistake, and now Chara is in control of their body. The Underground is in an endless loop of genocide, monsters being slaughtered and brought back, just to be killed over and over again. Those unaware of the resets at least have some hope before they die; those who know the truth have already fallen to despair.

    And then... something changes. A new monster appears, one Chara has never seen. Chara is forced to do something they'd never even considered doing...

    Yet when they do, they find that maybe, pacifism isn't so bad after all.

    -------------------------------------------------------------------------------------------------------------

    Please criticize, I really need to improve. I'll try my best to take any and all criticism well, but I'm more invested in this than I probably should be, so if I respond in a way I shouldn't, you have my preemptive apology.

    I would like it if you tried to point out what I could've done better, but you're still welcome to leave criticism even if you can't pin down exactly what the issue is. Just please be civil, alright?

    Language:
    English
    Words:
    6,066
    Chapters:
    3/38
    Kudos:
    3
    Bookmarks:
    1
    Hits:
    75
  13. Tags
    Summary

    A mysterious feeling drags your twin Frisk towards Mount Ebott, with you not far behind.

    You find yourself trapped beneath the mountain, and are faced with a race of people long-forgotten by Humanity. Monsters. But, despite the name of their race, they aren't monstrous like you'd think they'd be with a name like that. You soon feel a need to free all those who are trapped, regardless of the trials they have given you. On top of all of this, your twin sibling Frisk seems to be troubled and holding secrets from you. Will you find a way to free those trapped Underground? Will you be able to free Frisk, and Yourself? Will you ever have the happiness of a family that you, and your sibling Frisk lost so long ago?

    Read, and find out where in this story you will go.

    Language:
    English
    Words:
    30,981
    Chapters:
    10/?
    Comments:
    32
    Kudos:
    44
    Bookmarks:
    9
    Hits:
    521
  14. Tags
    Summary

    You are a being, monster, human, hybrid, that has lasted over 1,000's of years and need a base magic intake to survive. You could be considered a vampire for magic? Made by mages during the time of the war to feed on monsters and wipe out any that still lasted after being pushed under a mountain. A true monster, meant to eat and kill.

    Whatever you were,
    You are tired of living. You've seen everything, experienced everything, and done things that could make a priest stroke out.

    You feel yourself turning savage. You refuse to feed anymore and it's taking affect when you can't help but refuse to harm another soul just to satisfy you and your odd tastes.

    But this smells...

    .... Like an opportunity

    ((**MAJOR WARNING-- I WILL ONLY BE WORKING ON THIS IN MY FREE TIME. THIS IS MY SECOND PIECE AND I DON'T PLAN TO MAKE THIS A PRIORITY. MAY UPDATE RARELY**))

    Reader is a charactor I've been working on named Acite. (Ass-ite) and described in the notes on the first chapter :)

    Language:
    English
    Words:
    518
    Chapters:
    1/?
    Kudos:
    5
    Bookmarks:
    2
    Hits:
    45
  15. Tags
    Summary

    Life as a resident of the Underground. It starts with confusion and terror and doesn't get any better from there.

    There are a lot of different ways to cope with the problems stemming from this. Unfortunately you do not want to deal with any of them. Leave that, monsters and trials bundled with it, to saviors who can shoulder the heavy burden.

    You're determined to leave the Underground with your sibling. Nothing will stop you. Not the motherly goat mom. Not the tall spaghetti loving skeleton. Not even his pun filled brother, who seems oddly just as determined to get in your way. Maybe it wasn't your place to interfere in the first place but you refuse to idle. One way or another, you're leaving. Even if it kills you.

    Which it probably will.

    Language:
    English
    Words:
    37,090
    Chapters:
    9/?
    Comments:
    17
    Kudos:
    53
    Bookmarks:
    10
    Hits:
    890
  16. Tags
    Summary

    Now on the surface, and with increasing numbers daily, Alphys and Undyne now have to start looking towards their shared future with humans, one that they strive to make peaceful and happy. Along with the birth of their child, however, comes tensions, confusion, and fear. And as if that weren't enough, their child becomes more and more interesting as the years go by, offering them both a unique challenge along with the rest.

    Series
    Language:
    English
    Words:
    109,759
    Chapters:
    32/?
    Comments:
    116
    Kudos:
    81
    Bookmarks:
    9
    Hits:
    1766
  17. Tags
    Summary

    What he did and how he paid for his crimes

    Language:
    English
    Words:
    4,766
    Chapters:
    8/?
    Kudos:
    4
    Hits:
    257
  18. Tags
    Summary

    My interpretation/extension of the King Papyrus ending. That's about it. I suck at summaries.

    NOTICE: In writing the upcoming chapters, I have noticed that this fic is becoming much darker than I had originally intended. I will be extremely cautious to ensure that warnings are tagged properly. However, if at any point in time, someone feels that they need me to up the maturity marker on the fic, please let me know. This is my first fic on AO3 so I would greatly appreciate it if you guys helped me out.

    HIATUS: Currently on temporary hiatus due to finals. ye colleg \(-_-)/

    Language:
    English
    Words:
    30,792
    Chapters:
    11/16
    Comments:
    16
    Kudos:
    56
    Bookmarks:
    7
    Hits:
    476
  19. Tags
    Summary

     


       "are you ready?"

         They sat across from each other in sans' room, legs crossed and knees touching.

         He had spent the better part of an hour just holding her in his arms as she sobbed openly into his sweater. He didn't know what was wrong, but... He could see her soul giving up.

         He could feel her heart breaking.

         He watched as she closed her eyes blooming with bright greens and deep purples, taking a slow breath through her nostrils.

         She really did have the most gorgeous eyes he had ever seen.

         She nodded.

         And he wished she hadn't, but she did, so he said, "okay," and he summoned sharp bones, aimed in a line along her spine.

         She had asked him to make it quick.

         Carefully, he pressed the weapons ever so lightly against her.

         She whimpered.

         He took her hand, squeezing it gently. He said, "it's gonna be painless. i promise," and he let his gaze fall over her one last time.


    Language:
    English
    Words:
    3,739
    Chapters:
    2/?
    Comments:
    16
    Kudos:
    44
    Bookmarks:
    6
    Hits:
    527
  20. Tags
    Summary

    Sans is just a normal monster in the underground. One day, he starts getting weird dreams about a girl. A human girl. Who is she? Papyrus is no help, since he's such a jerk, and he has no legitimate friends to ask what these dreams mean. Except....maybe one person...if Toriel isn't too crazy anymore...

    Frisk is absolutely terrified. She was cursed by Rose, a petty warlock human (the first in 80 years), to be banished from the village, and never to return. Frisk literally could not help but fall. It was the farthest she could go in a single day, just wearing that stupid red and black sweater, and shorts that hardly matched. Fortunately, she has her handy Swiss Army knife to do...well...anything that might need a knife, saw, or any assortment of screwdrivers.
    But...she has a vision after falling that makes her confused...she can't return...so why is her vision telling her that someone is waiting for her at home?

    Language:
    English
    Words:
    4,289
    Chapters:
    3/?
    Comments:
    2
    Kudos:
    7
    Bookmarks:
    1
    Hits:
    107

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