Aftertale Stories

I'm going to experiment with this one. I have a better understanding of Geno becoming Error in the fandom and want to toy with it a bit. What if Geno had Goth at the tim...

I didn't die, I know that but somehow I became a gaster!? (Different everything, different beginnings, different personalities etc

What if someone is reborn as Error? What if they aren't so bad? What if they're suffering in silence and keeping their job a secret for fear of hate? How will Ink react...

This is a book of Afterdeath oneshots. Feel free to leave requests!

Long ago, two races ruled the Earth: HUMANS and MONSTERS. One day, war broke out between the two races. After a long battle, the humans... wait no, the monsters were vic...

I died. how? well some crazy guy broke into my apartment and killed me. Now I'm reborn as a copy of the original geno except something is different... why do I have wing...

In a far far away kingdom, Where magic has been band, and those who used it have been sentenced to death lived a king with two sons. Said king was blinded by his hatred...

Yes , a sequel. I can't just leave everybody hanging when my oneshots were actually getting a fairly awesome amount of reads! Plus, I have even MORE ideas! I can't wait...

(Absolutely beautiful cover made by @EverlovingCheeseCake aka @Ironic_Cheesecake!) What the heck? #1 in genosans? AHHHH- You are officially the ninth human to fall into...

500 years is a long time to be trapped in stone - even for an immortal guardian of feelings. Unfortunately for Dream, this is exactly what he has gotten himself into. If...

Geno is sick and Death comes and takes care of him. Cover picture belongs to me. Geno belongs to loverofpiggies. Death/Reaper!Sans belongs to renrink.

He wakes up in a white place... (Man wakes up as a alternate version of Cross Sans,neat,the cover is mine..Cross Sans is not mine or any Sans you will see besides this a...

The randomness of Undertale shines through another one of my books, hallejuuah!

After All AU's of Frisk's death, all of the sans have been depressed losing their love/friend of their live. Until.........(Y/N) fell to the underground. As all of the s...

(Hey my peeps! Before reading this just know that this book is really old and my FIRST fan fic. So ya it's gonna be a bit bad and confusing. So read it if you'd like to...

What does the Lord of Negativity do when he finds out there are Alternate Universes? He collects minions of course! Read through to find how nightmare selected his stron...

I honestly just wanted to make this lol - After getting into an argument, Fresh, Error, and Geno are forced to go out on a walk together. Suddenly the ground opens up to...

Soulstring: a piece of golden string that connects through the soul of families and relatives such as close siblings, this string of hope never lets another sibling hurt...

Keys (Y/N)-your name (F/C)-favorite color (LS/N)-little sisters name (LS/FC)- little sisters favorite color

male sans reader x chara. i dont own undertale or any au of undertale or any pictures or videos i may or may not use in this book.