SCP stands for either Special Containment Procedures or Secure, Contain, Protect, which is the SCP Foundations Motto. The SCP Foundation is a large organization specializing in containment of anomalous creatures or objects to protect mankind and to study them to create scientific breakthroughs.

( This is the third book to Sans' House Guests, you should go read that and Shadows of Remorse before you read this because you will be confused on what the heck is happening! This is an original crossover story between Undertale and CreepyPasta where Sans is the main character and makes some CreepyPasta friends! I own neither UnderTale or CreepyPasta, I just own this story and crossover idea! Read the first story here: https://www.wattpad.com/story/192345936-sans%27-house-guests-creepypasta-x-undertale ) 17 years. It's been 17 years since Sans had last been heard from, and his old friends and family have grown to accept that he wasn't coming back. They made their mistakes, they pushed Sans out of their lives. It was only fair that he lived his on his own accord. And if Sans didn't want Papyrus to be included in that life, then that was fair. But it doesn't look like either have a choice when their lives clash again.