It's all my fault. Papyrus thought, holding the stained hoodie in hand. He should've watched his brother at the least. He noticed a trail of human, robot, and dinosaur footprints, as well as a long (and thick), straight line. Good thing it wasn't snowing. Papyrus ran as fast as possible, reaching a small clearing in the woods. He hid in the bushes, seeing Alphys, Mettaton, Frisk, lab equipment, and a cage holding a creature. It was Sans. Pap leapt from the bushes, a bone in hand in case he had to fight. "P-Papyrus! We caught the th-thing that killed Sans!" Alphys exclaimed. Pap gripped the bone. He would allow them to react before he did anything. Unless they stepped near his brother. Mettaton got up and put an arm around Papyrus. "I know it's hard darling, but you'll get through this." He said. Frisk had covered her face. "F-Frisk?" Alphys questioned. Frisk revealed she was crying. "I.. I caused an anomaly. I don't know how, but.. I somehow caused this mutation. I... I only wanted this to be a permanent Pacifist run. I never wanted Chara to come back, or for this to happen. I had to bargain with so many monsters. I never knew it would cost this!" Frisk shouted. "SANS WAS THE ONLY ONE WHO KNEW ABOUT MY TIMELINE MANIPULATION, AND NOW HE'S..." She trailed off, her sobs too much for her. "No he's not." Papyrus walked to the caged creature. He gave Alphys a look, and she nearly dropped the remote before releasing the creature. Papyrus opened his arms as Sans rubbed him with the slipper feet. Mettaton had his tranquilizer ready, which made Sans growl- both literally and figuratively- at the robot. Mettaton almost shot, but Papyrus every so gently removed the collar with the tag on it. The reason he had this, was sometimes Sans would pretend to be a dog and Papyrus loved joining in on the fun. Err- when they were younger.
Alphys had her mouth covered. "W-We didn't-" She was cut off by a somewhat forgiving smile. Not from Papyrus, but Sans. Alphys could see Sans and the beast layered over each other and this only made her more upset at their actions. "Alphys, why are you here instead of your lab?" Papyrus asked, Sans tilting his Gasterblaster head. "Th-The lab was over-run w-with the mutants as we're calling them." Alphys explained. Something hit Papyrus. "Is anyone else we know of affected?" Papyrus asked. "T-Toriel and U-Undyne. Even Muffet is!" Alphys answered. Frisk was searching for something. The little girl had grabbed a map, studying it. She pointed to a location. "This is probably the safest place. Asgore isn't there for some reason. I think he was mutated, or he just left." Frisk said. Sans laid down, staring at Papyrus like he expected him to know. "Uh.. darling.. why are you on your brother's back?" Asked Mettaton. "JUST TRUST HIM, SANS KNOWS WHAT HE'S DOING!" Papyrus said, at his normal frequency. Alphys, Frisk, and Mettaton climbed onto Sans' back. In a matter of seconds they were in Asgore's castle. Papyrus jumped off San's back with Frisk, while Mettaton helped Alphys. Alphys ran to her back-up lab and began to mess with chemicals. Frisk lead Papyrus to a grand kitchen. He was so excited he decided to make spaghetti for everyone. This meant making an extremely large batch.
A loud crash in the kitchen lead to Sans, Mettaton, and Frisk all running as fast as they could. Papyrus was pointing a butter-knife at a large fish-like creature that looked like a lake-monster. Sans was charging, and about to let out a blast, but the fish-creature turned to them. Sans stopped mid-charge. He seemed to be the only one who noticed what the creature was. Quickly after, Frisk noticed. "Undyne?!" Frisk called out. The creature smiled. Alphys came running with a test tube but tripped on her own feet. The contents splashed onto Undyne, who (rather painfully it seemed) turned back to her normal self. There was nothing left of the solution. Alphys seemed to be in panic mode. "I don't have any more of the ingredients.." She said, barely audible. Papyrus sighed. "WE'LL BE ABLE TO FIND MORE, I'M SURE! IN THE MEANTIME, I'LL HAVE TO MAKE MORE SPAGHETTI." He said, gesturing to the pot that had flipped over. Undyne was staring at Sans. "What is that?" She asked. Apparently, Sans had recognized her, but not the other way around. "THAT IS SANS." Papyrus said, putting a gloved hand on Undyne's shoulder. Undyne was staring at Sans, who had his permanent smile like this as well. She saw bits of his dark blue tongue through the opened smile. She didn't even want to know how he must feel. Probably because she already did. She walked up to Sans, who just stared at her.