You are a worker drone that simply got thrown into the sewage system, under an abandoned city...everything stinks horribly...but you go there to lock valves that are connected to the Worker drone shelter, and they just realise a stinky slime substance...

As you go deeper into the darkness, you hear somebody talking...as it turns out...it was N...he was talking to a rock...he seems to be mentally insane, and it's not safe to go closer...

N: So Mr. Rock, what do you like to do for fun?

N spoke to the rock, sounding like his cheerful self…despite being mentally insane. The rock being a rock, doesn’t say anything

Creepy