I have been through every room in the town hall building 5 times and have opened the "underground" little cave where I got the dagger where there are four different books. Am I missing something? My objective just says investigate Town Hall. I've investigated everything. I tried going back to the house, but the front door has those vines accross it and I can't get in.
in the room where you got the dagger, there is a hidden door between the two books (on the opposite site of where you enter the room, which is also the wall to the left of the cross you got the dagger from) And you have to equid with the dagger to open the door.