Howdy guys I am writing this to say that I don't own Undertale and that these are some short chapters about Sans and Papyrus and maybe some of them and Frisk some connect but some are just for one chapter like this is connected for another one. Also I have taken a lot of inspiration from comics that I have found online. Also final notice for the past 8 weeks I have been in a cast after I clumsily fell down three stairs and broke my metatarsal. I luckily avoided surgery by just a inch and I have written this in a celebration in a way. So I hope you all enjoy this and please review on what you thought. Oh also I am not making them human in case you got confused or anything. And in this chapter Sans is 7 and Papyrus is 2.

Sans was always more responsible than most children at his age but saying that Sans had to grow up quickly his father W.D Gaster was a scientist who was always at the lab and rarely at home. However despite this Gaster always had time to train Sans with his magic when he was old enough to learn about it. Another reason why Sans was forced to grow up was his little brother Papyrus. Papyrus was a small skeleton but was actually quite tall for his age compared to others Sans had to take care of his brother and make sure he never got into trouble. On this day Sans was sat on the ground with Papyrus as the baby skeleton placed a block in front of Sans pointing at it enthusiastically. Sans chuckled at the young ones antics when the door suddenly opened letting Sans' father walk in when Sans saw his father he waved to him and smiled saying.

"Welcome home dad" Gaster didn't smile or wave back he just sighed and turned away. Sans was worried by this so he turned to Papyrus and said. "Papyrus stay here for a minute okay?" Sans knew the infant wouldn't be able to answer but Sans felt better knowing that he had informed his little brother of his absence. Sans followed his dad into his mini version of his lab where he asked. "dad are you okay? was work bad or something?" Gaster didn't say anything he just stood in front of his son with his back to him. Suddenly Gaster summoned a bone which he fired at Sans it targeted Sans with lighting speed. "DAD WHAT ARE YOU DOING?! DAD STOP PLEASE!" Sans ducked and curled up into a ball placing his hands on his head hoping that it would protect him but he was never hit. As he looked up he saw his fathers disapproved face.

"I am very... very...NOT impressed" Sans stood up.

"im sorry dad but its just to sudden to start training me at this moment" Gaster looked away.

"I thought this would of improved your defence- which it did" He sighed. "but I still sense the cowardice inside you" Gaster pulled out a jar from a cupboard the jar contained multiple small blue pills. "I had no choice but to do it and its because I couldn't find even a single volunteer for my project" Gaster turned to Sans and held the jar towards his son. "Sans, please be the volunteer to my project. This is what I have been working up to"

"what are those?" Sans asked.

"I call this a "determination pill" each tablet contains 3% of determination from a single human soul" Gaster told him what he must do and how he wanted to see the results. Sans felt the pill in his fingers and nervously placed it in his mouth after a few seconds he swallowed the pill but what happened next shocked and scared Sans. A horrible pain stabbed into Sans making him cough in pain he landed on his knees and neon blue saliva spilled from his mouth and neon blue tears began to fall from his eyes. Sans watched as his father again summoned several bones.

"DAD?!" Sans' fear began to diminish as anger rose. "why? WHY!?" Sans' eye became engulfed in a blue flame. After a few attacks Sans had protected himself from a gaster blaster attack by forming a large skull around him. Gaster walked up to his son saying.

"well done my son I am very proud of you" Sans glared at Gaster.

"I am not your son" Gaster had a shocked expression. "You lost the right to be my father when you decided to use me as a lab rat" Gaster glared at Sans.

"how dare you, you ungrateful little brat" Sans became shocked at the next thing that happened as his 'father' slapped his face. Gaster didn't seemed fazed with what he had just done to his own son. Sans shakily stood up and began to back away.

"that's it I am taking Papyrus and we are getting as far away from you as possible" Gaster shot a bone towards Sans.

"I don't think so that brother of yours is going to come in handy as my second 'volunteer'" Sans glared at Gaster and fired multiple bones at him all three being dodged but another managed to hit Gaster when he didn't look. The hit knocked him out and seeing this Sans ran out of the room and shut the door knocking over a bookshelf in front of the door. Tears were still in Sans' eyes when he got back to Papyrus who was still playing with his block.

"come on Papyrus we have to leave right now" Sans said whilst picking up Papyrus and his block and running outside. The cold hit them both instantly making them both shiver and tremble in the cold. Sans saw Papyrus chattering his teeth so he unzipped his jacket and placed him inside hugging him tightly. Sans trudged through the snow the cold was getting to Sans as he suddenly collapsed in the snow. Sans woke up a few hours later in a warm log cabin as soon as Sans woke up he bolted upright hearing Papyrus squeal. Running into the kitchen he saw a flame monster trying to feed Papyrus spaghetti but somehow Papyrus had managed to get it all over his head. The flame monster looked at Sans moving his hand in gestures which Sans understood.

'are you okay? I found you and your brother just a few minutes away from here in the freezing snow' Sans nodded. After getting introduced and informed Sans got Papyrus feed and dressed into clean clothes that the locals had given them. He then placed Papyrus next to him on the sofa and fell asleep.