The Forgotten

by storytellerandartist

The Underground, a vast kingdom of unknown depth and size. Home to the Monsters since a grand war many years ago, banished by the humans. However there is another race that's been forgotten by both sides. A mission from the future will unite them to an unknown enemy, or doom them all to death. I dont own Undertale or anythingfrom it just the AU and OC's and stuff.

1. Chapter 1: Time to Remember

"Peace, is such a fragile thing. We had peace of sorts, but those days are long gone. No one remembers who started first. Just that the world had lost its only weapon against them. Who are they? Where did they come from? That doesn't matter anymore, at least not right now. All the monsters have gathered, well, the surviving ones anyways. However they are not alone, humans have teamed up with them as well as The Hidden, unified against the darkness in combat.

The theory and goal is to send people back to different points in time. To before them, and give ourselves a chance to survive as a whole. It is unknown if we will succeed but if, on the off chance we do. The only war we will be fighting, is each other. My name is Dr. Anna-May and the year is unknown. This video is recorded and kept on our people for those in the past to someday understand why we did it...in hopes of forgiveness. I..." The video message cuts out, a figure in black stands near a tall mountain.

Sans sighed at his station, lost in thought. Was this just another dream of his? He didn't bother to care at this moment, his dreams often appeared to be similar to his actual life. That is till he woke up right where he last nodded off. The most recent ones was one of the worse ones, it left him on edge to say the least. In the back of his mind there was a familiar buzzing sound, one he hadn't heard since before the dreams and nightmares started.

Closing his eyes he focused on that sound, all too suddenly it vanished leaving him to question if he actually heard it or not. It usually stayed longer to simply pester Sans about remembering, what he was supposed to remember was a mystery to him. It wasn't long before his shift ended so he simply stood up and began walking home, the feeling of being watched being unshakeable.

Unknown to Sans he was definitely being watched, from another plain of existence by someone who had long given up leaving its darkness. He is not alone, the vast space had at least one other being that he knew about. With a heavy soul the being had attempted to once more communicate with the only one that remembers them, only for the window between the plains to be slammed closed on him. If only they would remember, then he could help with the time walkers mission. Everything rides on The Hidden being revealed soon and their history remembered.