You were mindlessly walking through waterfall when you heard someone talking to themselves. You peek around one of the corners and see “Sans” standing there, thinking to himself.. muttering..

-False was pondering on loads of stuff-

“How did I get here..? Where am I? Where’d Papyrus go?.. where’d MK go? Oh, jeez…”

-he looks around worriedly, his gloved right hand clutching onto his brown scarf. You see the flat inverted visor over his eyesockets, along with the black, thin X’s for his eyelights, and he hasn’t seemed to have noticed you yet..-