Cover Art: FairyFan94 from Deviant Art

A/N: Yes I know this update is coming late but as it is, I no longer have any already written chapters, which means my update shedule chaught up to me faster than I had planned for it. So now I am having trouble finishing the chapters in time for the weekly updates. So in short, chapters will may update late from now on. So please don't be mad about late updates. Also sorry if this chapter isn't as good as past ones. I didn't have much time to overwork it much.

Chapter 17 – One body two souls

"Kiddo?" The short skeletons eye-sockets went wide for a moment as he eyed the small human child standing before him. She was smiling a smile he hadn't seen on her since the reset.

"Sans!" The child suddenly half yelled and tackled the skeleton into a hug, causing the two to fall onto the mattress. "My memories are back!"

"What are ya talking about, pal?" He didn't hug the child back, but his left hands was hovering near the childs back while he used the other to sit up again, the human child still hugging him. He replayed the words in his mind.

"Silly Sans! I just said it." He heard an unfamiliar giggle from the child. "I have my memories back! Do you know how hard it was for me when I realized that I was doing things differently?"

He said nothing, but his left bone hand twitched slightly from the childs words.

"It is so awful! To realize everything we worked for is gone… My bonds with Mother, Father and everyone else… That I had to rebuild everything… and without my memories I did everything so different from before…" Sans right eye started dip into a light blue color when he yanked the human child away from him and tossed her across the room. The child fell with a thud on the ground staring wide eyed at the skeleton.

"Sans? What are you doing?" The child asked but the skeleton only narrowed his eye-sockets on them as he stood up from the mattress.

"Quit acting pal, you suck at that." The skeletons voice was taking a dangerous tone and his eye-sockets turned pitch black. The grin on his face even seemed darker and less friendly than usually.

"He he…" a cold and humorless laugh came from the child. "What gave me away? I thought I was acting pretty much like that idiot."

He lifted one boney finger. "One Frisk doesn't talk as much as you do." He lifted another one. "Two she doesn't call Tori and Asgore, Mother and Father, but Mom and Dad." A third finger was lifted. "And lastly the kiddo doesn't whine as much as you do."

"Sure whatever." They rolled their eyes as suddenly bones impaled the wall next to their head and they looked up, blood red irises staring bored into dark eye-sockets with one glowing in a bright blue color. "Aw you don't want to hurt the little girl's body now do you?"

Sans nearly growled but he held back. He didn't want to admit it but the demon was right why else would he miss on purpose. Yet the rage in him, the anger, the fear and many other emotions wanted to run wild on him. He could feel his magic pulse through his tense bones.

"What? Cat got your tongue?" A grin spread across their face. "Don't worry. I am not in full control... yet."

No emotions were shown on the skeletons face making the child drop their grin and frown. His left hand twitched, Sans knew he needed to keep his cool to figure out what was going on and why that demon was possessing Frisks body.

"She wanted the pain to go away." The grin turned maniac as they tilted their head slightly. "I am going to erase the pain. With everything gone there won't be any pain right?"

A blue flame erupted from Sans glowing eye-socket and he glared at the "monster" before him. Slowly he raised his left arm. The magic that pulsed in his bones flared up and he could feel it materializing a few bones behind him.

"Get out of her body." He spit out, there was so much more he wanted to say but he refused to break his cool. He wasn't going to give that child the satisfaction of making him lose control of his own emotions or magic.

They shrugged and grinned at the fact that they finally lured some emotions out of the skeleton. "Can't do that. Their body and soul belong to me."

They dodged the bones that flew their way but they weren't prepared for Sans suddenly appearing right behind them and yanking them with him through a short cut. A short feeling of weightlessness and they were thrown against the nearest pillar in the new location, the judgment hall. They needed a moment to get rid of the dizziness and once they regained their senses they looked up.

"You are going to have a bad time if you don't leave her alone." The skeleton was serious. Two Gaster Blaster were materializing behind him. Sans knew he wasn't going to kill them, the body still belonged to Frisk and he didn't know where her last save was, nor if Frisk would be able to load her safe with the demon around. He shook his skull, the focus of his thoughts was needed somewhere else.

A soul burst from their chest. An ice blue light flicked into live once again. The strange thing was, the soul that came from the human child was seemingly cut in two. One side was a warm red, the other side was white, emitting no light or emotion. The red half glowed in panic as white roots spread over its side slowly taking it over, while the white half very slowly started to turn red. It was taking the warm red of the other half and turned it into its own menacing red.

Till now Sans had never thought that it was possible for a soul to show two kinds of red at the same time. The blue light in his right eye-socket flicked from looking at the soul to looking at the child that 'owned' it. They were no longer looking like Frisk, their skin was pale, cheeks rosy eyes black with red irises and even the clothing had changed to their trademark green sweater with yellow strip and brown trousers.

"Hey kiddo, looks like you're having a tough time." His voice was strained yet some kind of small relieve could be heard as the light in his eye-socket flicked back to the soul and solemnly focused on the warm red that glowed in response to his words. A plan to separate the two formed in his mind. It was only a theoretical solution but with his kind of magic it might work.

The child said nothing as their head tilted to the side for a moment an image of Frisk glitches over them but as fast as it appeared, it disappeared again as a knife appeared in the air and the child grabbed it, swinging it around, testing their control.

Sans narrowed his eyes as he sidestepped their attack, his left arm swung to the side, their soul turned blue and they were thrown against a pillar. Sweat dropped from his skull as he concentrated more on the soul.

The knife gleamed in the light of the judgment hall as it swiped past the short skeleton once more. The child growled. The red iris in their black eyes glowing more, they avoided bones aiming for them.

Their soul turned blue again and once more they were thrown across the room only narrowly avoiding the bones that broke through the ground.

"Give up you will lose anyway." They were enjoying the fight, Sans could tell that with one look at them. Their attacks were getting faster and the warm red was nearly completely drained off… but it was still fighting. The skeleton could see it in its pulsing. Frisk was also fighting for her soul.

Gaster Blaster flew past him, firing beams of ice blue magic at the childs floating soul. He purposely aimed them so that they were easy to dodge. All these attacks with bones or the Gaster Blaster were only meant to be distractions for every time he grabbed their soul with his blue magic.

Keeping their attention away from what he was really trying to do. From how he more and more managed to slowly separate two things that didn't belong together.

Then an opening.

Sans left hand shot forward, the childs soul turned blue… but a speck of red was freely visible. Still their whole body jerked to the side and hit a few bones when he swung his left arm to the side.

Their HP had dropped down to 5. Frisk body was slightly bruised. But Sans had made sure none of his attack was lethal. After all he needed to separate the two before he could wipe the floor with the demon.

They chuckled when they stood up again. The skeletons eyes narrowed in suspicion. "I told you he would only hurt us…" They said grinning manically when they stared at the skeleton before them.

"How about I tell you a little secret you Mister skeleton." Their tune was mocking and Sans could already tell that he would not like what they had to say. "Every time you hurt me. Every time you used to kill me. Every time you 'dunked' me. In the past and right here…"

A strange feeling pulsed through Sans right eye-socket. He felt it to be something akin to panic. But the strange thing was they weren't his emotions. Yet he was feeling them. His right hand shot up to cover his right eye-socket, right at the moment as a blazing blue magic flame erupted from his eye-socket.

"…she was the one feeling the pain and in control." A laugh echoed through the halls as he stared with wide eye-sockets at the child. Their words slowly sunk into his mind.

Memories surfaced and Sans remembered time the demon child had used 'Mercy' on him. He thought it to be a trick of them, trying to gain his falls trust. He thought the tears in their eyes to be face. Yet all this time. The one he had 'dunked' on hadn't been them, it had been Frisk.

Their laugh echoed in the hall as Sans was frozen in shook. Their grin became wider as they lifted their hand holding the knife. This was their chance. It was their chance to finally get rid of the one that caused them the most problems.

From within deep in their mind they heard loud yelling and screaming. They tried drowning it out again but had to realize that their control was slowly slipping again. So they needed to act fast. They would let her come back and let her feel all the pain once the comedian was turned into dust. She would give her the full control to forget this kind of pain, all the pain and grief, the knowledge that their hands killed someone again. And if she didn't give it to them? Well she would take it by force. After all they were just taking what was theirs anyway.

Their image glitches to one of a crying Frisk.

Black liquid slowly tripped like tears out of their black eyes.

Slow steps forward, breaking into a run.

The knife lifted up.

Their soul pulsed in determination and desperation.

The skeleton was still frozen in shock.

They thrust the knife forward…

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The cracked transparent soul broke free of his hold, shaking uncontrollable as it floated a few meters before him. More and more cracks appeared on the small memory soul.

His formless hands reached forward to it. But the chain clacked and as the child behind him pulled on it stopping him from getting any closer to the memory soul. He turned what was supposed to be his head, seemingly facing the child that shook its head.

"Don't." They said with a sad look. "Aster, I think…"

He saw the child swallow as they faced the ground. "I think their time to return has come."

Turning to look at the transparent soul once more he thought the opposite. The memory soul looked more like it was on the brink of breaking apart. He had seen something like this before. And the last time he did, it didn't end pretty.

But before he could reach once more for it, it shot out of his reach through their window into reality.

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A scream ripped through the black abyss, echoing in the void, tearing through the shadows. He looked up as a white light blazed through the blackness. His eye-sockets opened wide in shock as white lights glowed in both his eye-sockets.

The black abyss…

The void…

It was changing…