(A/N: I just wanna thank those who told me that it was okay that I took a break for a day! Thanks, ALL of you lovely cinnabons for understanding! Now...FOR THE CHAPTER TO START! >:3)
Frisk's P.O.V.
       After our dinner, Sans and I headed back home. We had to go through the cold breeze against our faces, not to mention the troubled walking through the snow. We managed to get home.
I felt tired. My eye lids felt heavy, my body felt sluggish... I was out of it.
I guess Sans noticed my mood. "Hey, kid? Maybe you should get to bed."
I nodded, falling into Sans' arms dramatically. I giggled as he carried me bridal style up to his room. He set me on his bed, using a worn down blanket to cover me. It was still warm and cozy.
"If you need anything, just yell." Sans instructed. I swear he sounded like a dad. I took that to my advantage.
"Yes, DAD," I mocked at Sans, playfully. "Thanks for taking care of me like the GOOD FATHER you are!"
"Watch it, smartass." Sans said, his grin bigger. "We wouldn't want to have a B A D T I M E, now would we?"
Sans chuckled as he left me in the dark room. I fell asleep.

§I woke up, to see that I had dust all over me. I got up off the hard ground, only to find that I'm standing in a terrible place:
The Judgement Hall.
I heard laughter echo in the halls, a familiar kind. I looked ahead of me, to see Sans there. He seemed...different.
(Play vid at top if you wanna :3 <3)
Sans' eyes were gone...in the serious way. His body was slouched more. Sans looked like he wanted to be erased from this world and enter the next. He had his hoodie cover his head...only to reveal his body. His face was covered in a shadow.
"I thought I could trust you." Sans' deep, depressed voice echoed. "I thought you promised me you'll protect him."
"S-Sans?" I stuttered. I was so confused. I backed away a little as he moved closer.
"Don't act like you're innocent." Sans said, more serious. "I know you killed everyone. But why did you kill HIM?!"
"Sans...I didn't--" I tried explaining.
Sans interrupted me. "STOP! DID YOU ONLY 'PROMISE' ME THAT YOU'D PROTECT HIM, JUST TO GET NEAR HIM?! SO YOU COULD STRIKE?! IF THAT WASN'T ENOUGH, YOU DECIDED TO GO ON A MURDER SPREE YOU SICK FUCK!"
"Sans! Just listen!--" I tried explaining again. Coming from the shadow that covered Sans' face, was a blue flame. I new this meant business by now.
Sans had interrupted me again. "No. I don't care of what you have to say. I'll get revenge for him, AND for everyone else."
With that, Sans removed his hoodie. His face hurt to look at. Sans' eyes spoke of what his mood was: empty. Sans seemed empty with his tired-looking eyes.
Suddenly I felt like my SOUL had disappeared. I felt myself losing any other feeling. All that was left was DETERMINATION...the DETERMINATION to kill Sans.
'He's worthless. In my way.' I couldn't help but think only that. I felt my legs move forward. I looked at my hand, only to find that I was holding a knife.
~time skip~
"Oh. Heh. Wow..." Sans said, falling to the ground, clinging onto his wound. Blood all over: the floor, his body, coming from his frown.
I felt myself gain control again...what I mean is I could feel emotions again. I instantly dropped the bloody knife.
"Whelp." Sans said, getting up weakly. "I'm going to Grillby's."
"S-SANS?!" I yelled, trying to stop him. 'I have to help him!! I HAVE TO SAVE HIM!!'
"...Papyrus...do you...want...anything?" Sans said his last words.
Sans had turned into bloody dust.
I felt like crying, screaming, and everything else. I couldn't do all of the emotions at the same time, so I chose to cry. I cried over the dust.
"S......an...s...n...no..." is what all I could get out. My heart fell. I couldn't think.§

I sat up and screamed by bloody head off. I was crying, shaking, and possibly having an anxiety attack. No one had come, not even Sans. Which only meant one thing:
I had killed Sans. Literally. I only thought it was a dream. Nope.

Sans was dead. And I was the murderer.