Magetale

by KiriMina

When Flowey decides not to tell Frisk about a 'better ending', Frisk leaves the underground to try to find a way to free the monsters, promising to return when they are able. When Sans receives a call from Frisk four years later, she tells him she's coming back within a week, but not before someone else drops in. (M for language and possible sin later, F!Frisk, SansXOC)

1. The Promise

**~('▼')~ Oh god it's happening. A note, this is the first fanfic I've posted anywhere, so a bit nervous. But I welcome the reviews!While this is mainly a Sans story, most of the other characters will make apperances, and several of them play vital parts throughout the fic. Currently there are only two OCs added in, but at least two more will show up later on. That being said...Undertale belongs to Toby Fox, the fic and OCs belong to me.**

-The Promise-

*A cellphone rings, the owner misses the call. The caller decides to leave a message.*

'Hey...Is anyone there? I'll just leave a message then.' The caller said, chuckling a little before continuing. 'So...It's been a while. The queen returned, and is now ruling over the underground. She enstated a new policy, all the humans who fall here will be treated not as enemies, but as friends. It's probably for the best, anyway. The human souls the king gathered...Seem to have disappeared. So, uh, that plan ain't happening any time soon.' With a sigh, he continues once more. 'Even though people are heartbroken over the king...And things are looking grim for our freedom...The queen's trying her best not to let us give up hope. So uh, hey. If we're not giving up down here...' He pauses again, trying to sound cheerful. 'Don't give up wherever you are, ok? Who knows how long it will take, but we'll get out of -' As he is speaking, another familiar voice starts yelling in the background. 'SANS!'

So many familiar voices leave messages on the phone, when Sans finally gets the phone back, he notes that his is almost out of power. He gives another familiar chuckle before speaking. 'So, hate to cut this short, but...Be seeing you, okay buddy?'

A few hours later in the Underground, Sans' phone began to ring, the lazy skeleton not noticing as he was napping. When he woke up, he found a message recorded on his phone.

'Sans? It's me, Frisk! I'm sorry, I missed your call earlier. I know it's only been a few weeks, but I really miss you guys. Hey...I might not be able to talk to anyone in the Underground for a while, the place where I'm going to be living...Well, they have issues with a little kid like me having a phone, especially one with all the things Alphys installed on it, haha!' Frisk laughed, sighing after a moment. 'I really do miss you guys. Even though I'm up here, you guys are my family now, so...I promise, I'll come back and figure out how to free everyone. It might take me a while to come back, but I will. I swear I'll come back, Sans!' Frisk said, Sans almost being able to feel the determination in every word. Before Frisk could continue, another voice could be heard calling for her. 'I...I have to go, Sans...But I promise, no matter what, I'll come back. I will make things right.'