RegretTale (Undertale AU)

"Sans help!" I cried as I started losing my grip on the floor and I slowly began to slip off of the platform despite my efforts to climb back up, my legs dangled off of the narrow platform that was the only thing keeping me from falling into the core. "Sans!" I called again to the sort skeleton who was looking at something behind him and then back at me. By now the Core was in ruins as it rumbled like thunder threatening to destroy everything in it and I along with everything else, couldn't hold on much longer.
"I'm sorry kiddo..." he whispered as he turned around and ran towards Dr. Gaster who was trying to stop this meltdown by shutting off the Core. My eyes widened as I saw him leave- how could he?

H o w c o u l d h e

"I won't forget that day Sans. And I won't forget the promise I made to myself. The promise to destroy everything you love."

[Hey I actually do own this cover! :D]

All rights to Undertale in general go to Toby Fox the only thing I take credit for is the cover, Glitch, and The story itself.
There will be things in this book that DID NOT happen in the actual Undertale (obviously) so I don't want to here in the comments that 'something, something didn't happen, in the game, this is fake.'

Now that we got that out of the way this will be updated rather slowly due to the fact I want to try really hard to make every chapter in this book the best it can be so yeah sorry if it gets updated rather slowly but most chapters will be pretty long.