You haven't heard anything about this family, but you helped the cultists of the fishhead cult, because they helped your parents with your upbringing.

You own your shack in the woods, just near the cultists' "base" and you didn't know there was a new guy there.

The cultists sent their best student and follower (that very new one-eyed guy) to you, because you had the necessary books that were interesting to this guy.

His way to you took about thirty minutes (even considering that he was resting near the river) and when he finally reached you, he was just nervous and embarrassed to knock on the door.