(I apologize in advance for the poor quality of these drawings.)

(This comic preview.)

The forgotten child (an undertale AU....)

Imagine for a moment... that there were a total of EIGHT children who fell into the underground.

EIGHT children who fell... and one was forgotten.

Because they didn't die.

They were experimented on in the royal lab, where Gaster harvested their determination and turned them into a half-human, half-monster conglomeration.

Also known as the skeleton sentry, Sans.

Sans is the eighth child nobody heard of.

The forgotten child.