I am writing a new comic about what happens after Frisk dies in the human world. As we all know, monsters in the underground don’t age unless they have children. So I kicked off the story with Frisk getting in a car accident, and sans experimenting on her bones 20 years later. The experiment doesn’t work properly, he goes home, but Frisk wakes up. She is now Frisken, and is a monster like Sans and Papyrus.
I will upload the pages soon.