Wow I was not expecting such a big responce to this story so soon. Thank you so much to everyone who took the time to read this little fic. Hopefully it lives up to your expectations.


San's didn't think he would ever get tired of sleeping in the sun. It warmed his bones and made his magic feel like it was floating on a golden sea. He wasn't the only one either. All the monsters were flourishing on the surface. Turns out magic, and thus monsters themselves, were suffering in the Underground more than anyone realized. Strangely the same could be said for humans. Without the magic monsters naturally gave off humans had become apathetic to life. Prone to sickness of both the body and mind. Deep in their souls they knew something was missing. So as soon as the surface dwellers realized how much each side could gain from finally coming back together the monsters had been welcomed with open arms. Well, for the most part, but you're always going to have a few bad apples. At their core they really weren't that bad a bushel.

The world was finally right. It was complete. No more fighting, no more struggles. Science, magic, medicine, knowledge, all fields were expanding at an exponential rate to a brighter future. A brighter future for both monsters and humans.

And yet Sans, the seemingly most laid back being in the world, could not really enjoy it. Not completly. At least not anymore.

A hope had blossomed in his bones those first few weeks on the surface, the hope that he was finally free from the resets and time jumps. That it had maybe all been happening because of the barrier. That lasted up until the moment he went from watching a new movie the kid had put on, to standing back in the underground with the rest of the boss monsters. The barrier still up. Sure they were out again not long after but the world lost a little of its excitement when Sans realized he was still going to be subject to the anomaly's whims. Kinda makes it hard to get invested.

He had confronted the kid, Frisk, about it a month into this current timeline but they were either a damn good liar or they really didn't know anything about the resets. Which was strange because Sans was sure they had been the cause of all this. Tibia honest the kid struggled to remember much of anything from their time in the underground. At least not while they were awake. But sometimes at night, god their screams would chill him to the bone. It was no wonder they wanted to forget.

His own memories were hardly crystal clear. One or two over lapping time skips were fairly easy to keep track of but when the timeline started to lurch back every few minutes like a broken record Sans was forced to try and ignore it. Who knew you could get motion sick from time? He was sure there was a joke in there some place but he had a feeling that if he found it he would be the punchline.

So time skips, annoying and disorienting, but resets were a different matter, and much harder to remember. Everyone has had a moment when they're not sure if a memory is real or a dream. Now try living your life like that. A constant state of Déjà vu. True, the surface was helping. Sans was even starting to gain a little of his motivation back without the nagging feeling that he had already seen or done the same thing again and again. Problem was that he could not shake the feeling that any moment would land him back in the underground and all this would be nothing more than a dream.

Of course that didn't mean dreams couldn't be enjoyed while they lasted. Sans had become a master of living in the moment and enjoying the simple pleasures of life while in the underground. He just wished fate didn't have to be so cruel in its methods to wake him up.

It was the kid again. Poor thing had been having night terrors for the past three days and Tori, well she was at her wits end. Kid had refused to talk and had pretty much locked themselves in their room when Undyne and Alphys had gone round to babysit. So Papyrus and Sans decided to try their luck, it was not much better. They would get a smile here and there but even Paps could see the kid looked haunted. It was only when Sans had taken the kid to the side for a soul to soul that he found out what had caused this sudden change - a book.

Frisk had barely wanted to look at the battered notebook let alone touch it when they had pulled out a box of junk hidden in the back of their cupboard, so it was understandable that Sans was apprehensive about what might be inside. What he found soon made his magic boil. His left eye twitched as he tried to keep himself calm enough not the shred the book back to the void it had come from. One thing was certain, he needed to get out of here and find a place to cool off and work out just what to do with all this.

"Don't worry kid. Forget about it." Sans tucked the notebook into his hoodie and smiled as he roughed up the kid's hair. Out of sight, out of mind.

"B..b...but it..t..t said…" Frisk was close to tears again, but at least they were talking.

"I said forget it. I got this, trust me. There ain't nothing to worry about, just a bad dream. Now how about you go tell Paps that joke I taught you last week. He stained his favorite scarf yesterday cooking, so he could do with a little cheering up." Frisk wanted to object but thought better of it. Such a good kid. Sans knew they would need to have a nice long talk later but that was best left till after they both had had a good night's sleep.

Frisk was barely out of the room before Sans use a shortcut to get back home, his signature smile gone and his eyes dark in mental focus. Papyrus and Tori could handle the kid. Sans had work to do, because if what this notebook said was true then he had just found something directly linked to the anomaly, and boy did he have a few bones to pick with them. It didn't take him long to get in his newly built lab and set up a few sensors.

Opening the book up Sans checked it thoroughly but, unless he was missing something, only the first page that had anything written on it, the rest was blank. Everything about the book seemed normal. It looked old and worn but it was definitely just made of paper. The writing however was printed, not written, and not in any ink but in magic. So that pretty much guaranteed that the kid hadn't written this, willingly or not. Poor kid. No wonder they had been having nightmares.

Sans shoved his emotions to one side and tried to keep his mind analytical as he read the page.

"To all those in the Underground, thank you. Thank you for giving me a brief glimpse into your world and letting me not only share in your struggles but help to guide you all the the future you deserve. While I can't join you in your new lives above ground I can only hope that the world welcomes you and has learned to put aside its differences so that Monsters and Man can once again rule the world together in peace.

To Toriel, I am confident you will become the teacher you have longed to be and I know any child, no matter if they are made of matter or magic, will be lucky to have you. Though you might want to lay off the snails, for most humans they are more escar-no.

Dear sweet Papyrus, you truly are the greatest and I can only hope to one day get to try another of your puzzles. Though I think the biggest puzzle would just be finding out how you became so cool. Keep up with your cooking lessons, and maybe check out human TV where you should be able to find whole channels dedicated to cooking. Oh and if you see your flower friend tell him 'thank you' - none of this would have been possible without him.

Undyne, I don't think I have ever enjoyed getting beaten up as much as I have with you. You caused me so many deaths I thought for sure I was going to never be able to get passed you. You taught me the real meaning of determination and I will try and keep you in mind whenever I am faced with a challenge. That said, keep an open mind, there are different viewpoints than just yours.

Alphys, you truly are incredible and you need to make sure you remember that. We all make mistakes but what matters is how we deal with those mistakes. You have such a good and caring heart and I hope Undyne and you can help each other to become stronger together. Make sure to stay true to yourself as well as to others.

Mettaton darling, make sure on your path to stardom you don't forget your friends, those that have always supported you. When you are surrounded by false smiles, glitter and glam you will need those people to keep you grounded.

Asgore, give Toriel some space. You can't 'win' her back but you can move on and prove to both yourself and her that you have changed. If she decided to give you another chance it will be her choice.

Frisk, I'm sorry for what you had to go through and honestly I would have been more careful with your body if I had known it still had its original owner. I'm glad you're finally free, and have some of the best friends in the world. Honestly, I'm a little jealous. Thanks for putting up with me kid. Stay determined.

And last but not least Sans. Out of all the Monsters I met I think you are the one that kept me coming back for more. Don't sell yourself short compared to your brother, I'm sure there is more to you than meets the eye.

Skelly-Till we meet again,

From the legendary fart master.'

The inclusion of Sans secret password pretty much confirmed that this was genuinely from the anomaly, but coupled with the close personal manner in which the letter addressed everyone left him feeling cold. It had been right there, puppeting that poor kid the whole time. At least Sans theory had been partly right, but Frisk? Damn kid, like you didn't have enough to deal with in the underground anyway.

Sans immediately spotted the likely cause of Frisk's nightmares. Not only had the anomaly spoken so casually about possessing the kid but it had also mentioned about getting killed by Undyne multiple times. If Frisk remembered the jumps like he did then Sans couldn't even begin to imagine what they must have gone through, what they must be reliving when they go to sleep. And here this...this thing just says 'whoops sorry my bad' and thinks it will make everything all better. It was one thing to have a bad nightmare but quite another to be then told it had been real. Sans worried what other nightmares the kid might now think could have been real.

The good news was that the anomaly didn't seem to be malicious, in fact it seemed to think that what it had done was for the best. True for the most part everything had worked out fine but what's to say this would not happen again. The message that had been directed to himself was what really annoyed Sans. Pretty much citing him as the reason they kept returning as well as using puns to let him know they knew what he was capable of, he was sure this was not over. That said Sans did make sure he remembered 'Skelly-till', it wasn't half bad.

"So you want to play do you?" The skeleton let his eyes go dark before letting his left flair up. The magic written into the page seemed to almost dance in front of him in anticipation. Holding a tight control Sans let his magic pool along his phalanx before replicating the magic text and adding to the page.

*ok

"Let's see what you can do."


So if you haven't guessed by now this is sort of going to be a Sans Vs Player fic. I haven't seen anything like this before so I thought I would try it out. Nothing too deep and there is no real 'big bad' I just really like Vengeful Sans lol and thought this would be a good way for the character to butt heads (skulls) with something new.