I saved at the same spot last night. I've been going off and doing them quests, the slave one is really easy to.
How far in the game are we? (Just before the boat after crucible)
about halfway I would say in the main story
slave rescue does just keep popping up even after the main story is done
Seems like ive only spent 5minutes on the main story. Good job i've been spending time on other things.


) and usually found on old buildings (to scare away evil spirits I think).