I just reached the tower where a ghost Called Lovis should be. I climbed it and entered the top room. Inside is a skeleton called Carlin I can trade with, and a room with four rings I can pull - which I have done resulting in some different damage types. The door out again is locked and after pulling the rings the first time nothing happens...
I can pull them again but now they don't do damage no more. The door out is locked and the skeleton trader has no help to offer. The various chests in the room didn't yield anything useable.
What am I missing here?
