Smoothbrain the Librarian
Sold the player Mending books - so you owe them
Interested in learning about knots and ropes
Borrowed a book on knots from Penelope the Fisherman
Allegedly, Smoothbrain said something crude about the fact that Penelope had 182 children with Larjikew the village's Nitwit
Seems Penelope wasn't happy with Smoothbrain and spoke with Terry the local Witch, and she cast a spell on Smoothbrain's house
Because of this, a massive zombie horde is invading Smoothbrain's house in the middle of the night
You have to fight them off
There are rumours that the prophet Chad is known to show up to defend righteous players and villagers. You figure this gives you about a 0.1% chance that Chad actually shows up, but maybe you're lucky and get some help to defeat the horde of Zombies