CHAPTER 1: FINDING SANS

UNDYNE'S P.O.V.

"Hey Alfie! What the heck's up with you call me and Paps up here?! You know what today is..." I semi-growled out at her as me and Papyrus entered her lab.

But Papyrus lacked his usual jovial mood... It was dampened down with depression and despair due to the date...

The day his brother vanished without a trace.

Sans went out for his patrol on the outskirts of Snowdin... And never came back...

Search parties scowered the entire Underground from New Home to Hotland. Heck! We even had Nasptablook check the Ruins and he wasn't there and Alfie's camera's didn't catch a thing due to Lesser dog building snow dogs in front of her cameras. And there was no dust pile to prove his death... He just disappeared...

After 5 months, the search was ended... But Papyrus... He continued to look every nook and cranny until he finally made himself sick... As much as it broke my heart, we had to make him stop...

After that he just shut everyone out... He didn't come to training or cooking lessons, he didn't watch history videos with Alphys, or watch Mettaton's shows. He even stop wearing his 'Battle Body' and replaced it with an over-sized orange hoodie and a pair of shorts. He usually tries to wear a smile when in public but sometimes it fails him and you see how much he was hurting underneath...

Especially today.

Alphys looked up at us and said, "Sorry to call you both in like this but I need to show you both this right away!"

Papyrus looked at Alphys and said in a quite voice (for him anyways which still sounded like yelling), "ALPHYS IF THIS ISN'T THAT IMPORTANT I'LL BE LEAVING..."

"Trust me... You NEED to see this footage from one of my new cameras!" She stressed as she pulled up a video from the outskirts of Snowdin.

It small location most people walked by, since it was right after the sliding maze and right before Greater Dog's post. Only monster who hung down there was Gyftrot and only when the teens try to decorate him.

The video began to play when a hooded monster walked on screen from a hidden door out into the snow slowly peering left and right. Suddenly the monster was gone in a flash. Papyrus stared at the screen intently when that happened.

Alphys then spoke up and said, "I'll fast forward to the next part..."

Soon the scene zoomed by until it was nearing dark and the hooded monster re-appeared with bags of food, clothes, and other items in hand. The monster walked to the hidden door and finally spoke. And the voice we heard sent us all staring at the figure.

"that took longer that i thought... damned clerk..."

The figure pulled down the hood and revealed the monster underneath to be...

"SANS?!"

Sure enough it was dorky, pun-loving, skeleton, but he seemed... Paranoid...

Why was he hiding out like this?!

Sans took off the cloak and tucked it into the bag.

He looked back up toward the direction of Snowdin and sighed. "dammit... i wish... i wish they would understand... but as long as they don't..."

He opened the hidden door and said, "i can never return..."

Alphys paused the video and said, "That's why I called you both... We're going to get Sans and find out what going on."

I nodded and said, "Yeah, but let me kick the snot out of him first... He deserves it for... Pap? You okay?"

Papyrus was still looking at the screen with orange streams of magic going down his cheeks... But he was baring that sad, hurt look... No, he bore a grin that just lit up the room just like it used to.

He turned to me and said in the cheery tone that has been missed for many years, "NYEH! I, THE GREAT PAPYRUS, FEEL EXSTACTIC! I KNOW WHERE MY BROTHER IS NOW! I CAN SEE HIM AGAIN! WE SHOULD SEE HIM NOW!"

And so Papyrus began dragging us off towards the outskirts of Snowdin (only making a short stop at his house to put on his battle body).

PAPYRUS'S P.O.V.

"WE'RE HERE!" I announced as we arrived at our destination.

Alphys looked at the spot where Sans entered and exited from on the video.

"It looks like a normal wall, how does a door come out?" Undyne asked as she glared at it. Alphys looked around the edges and said,

"There's some sort of magic switch here... But I'm not sure how to..."

While she continued to talk I took a peek at the switch. It was a magic weight switch, like the one I use on my most precious memory vault. I quickly activated my blue magic sending the door open and the two female monsters looking at me.

Alphys then stuttered out, "B-B-But... How?!"

"NEVER MIND THAT! SANS IS IN THERE!"

We ran inside the door and down a hall until finally we reached a clearing that bore some resemblance to Waterfall. It was a large area with glowing mushrooms and crystals spread around the room and a single waterfall coming from the left wall. But the most prominent feature was the house settled in the back of the area. It was white with blue tints here and there and had various flowers growing around it, like echo flowers, buttercups, and some sort of small flowers that came in purples and blues. Along with that there was a large hole coming from the ceiling of the cavern showing some sort of light coming from above.

Undyne looked at the house and said, "Man, what the hell has this nerd been up to? Let's go in and..."

Suddenly five large dragon like creatures floated in front of us mouths open with energy building up.

"the gasters?! dammit!"

Cloaked Sans came out beneath the beast and said in a strange voice, "why are you people here? no, it doesn't matter. leave now or perish!"

I ran forward and said, "WE WON'T DO THAT SANS!"

Undyne yelled, "Yeah so drop the act dork!" Sans stepped back and the beast vanished.

Sans took down his hood and stare at us in shock. "h-how... how did you-"

"I installed a new camera and well you showed up on it..." Alphys answered honestly.

Sans looked down worriedly and said, "dammit... i should have noticed..."

I grasped my brother into a hug and said with tears in my eyes, "OH BROTHER, THE GREAT PAPYRUS HAS MISSED YOU SO MUCH IT ACHED! PLEASE NEVER DO THAT AGAIN!"

Sans looked at me and said, "paps... i missed you too...but you've got to understand... i can't go back... not until people will be ready to understand..."

Undyne grabbed Sans from me and yelled out, "UNDERSTAND WHAT PUNK?!"

Then out of no where a bone flies in and hits Undyne in the head.

"YOU WEAVE DADDY AWONE MEAN FISH WADY!"

Everyone turned to the house and who now stood on the front step.

A small human child stood there with a box full of bones at her feet and arms crossed with another bone in hand. She wore small grey skirt with a blue and purple striped sweater. Her hair was a light brown that reached her shoulders with a small red ribbon tied onto her forehead. Her bright blue eyes were focused on Undyne who had dropped Sans by now and joined the rest of us in staring.

Alphys looked at Sans and said, "Sans... D-Did she just call you... 'Daddy'?"

The girl then said, "Course I did! He's my Daddy and no one hurts him without sitting in the time out corner, so that's where Ms. Mean Fish Wady needs to go!"

Sans got up and went over to the girl and said, "frisk, it's okay sweetie... undyne didn't mean any harm to me. she's an old friend of mine. but you should say your sorry to her for throwing a bone at her."

The girl looked down traughten (s/p?) and said, "If you say so..."

The girl walked over to Undyne, showing she was a little below Undyne's knee cap in height and looked up to her. She then said, "So-wee Ms. Fi-... I mean Ms. Un-die-ne... I thought you were going to hurt Daddy..."

Undyne looked at the girl and back at Sans. "You have a LOT of explaining to do."

A/N: Yep! It's a Sans raises Frisk AU. Now for this story Frisk is a girl and I hope you all caught on the reference I made in this chapter. Also I made this AU where monsters live really long lives like Asgore and Toriel were around the same physical age when the barrier went down. Toriel would be 151 and Asgore would be 198. The other monster's ages will come up later! Anyways I'm thinking about making a comic about this... So let me know what you think!