Cute... get married already....
Thanks for the chapter!
I was right about the grandma/mother situation. I wonder if they'll return to it later, or that was being used to setup that badly constructed houses can push a person to do horrible things, which I assume will be a plot point again later?
As for the new mystery, what could the gears be for. My immediate thought was some sort of torture tbh, I thought the woman was going to see that there was a human trapped in the house.
Anyway if the "water wheel" isn't connected to a stream, then it stands to reason that it's not actually the power-source; the power source must be something else, and the purpose is to turn the
wheel, for some reason. ???? well idk