(book 2/2. last book: secrecy) Sans finally reveals his past. but who is W.D Gaster?

Hey! Wattspad deleted my description for some reason so I'm here to write a new one! ~~ SANS HAS BEEN CUTTING FOR WEEKS AND DOESNT WANT PAPYRUS TO FIND OUT. WHAT WILL HAPPEN TO SANS AND PAPYRUSSS??? READ TO FIND OUT!!! Note: I have made this story going on and off for like 2 years, so sorry if some things don't make sense. ⚠️¡WARNING!⚠️ This fic has: -Eating disorders -Suicide -Cutting -Depression -Intrusive thoughts -Swearing -Angst Started: Feb 4th 2019 Ended: Nov 16 2020