Hildir's Brass Key
It seems to be missing its owner...
This item is in the game files but nothing in the game data gives it to players (no recipe, drop, trader, chest or world source). It is left out of lists, counts and search.
How to get Hildir's Brass Key
No way to get this item appears in the game data: no recipe, drop, trader, chest or world source uses it. It is likely unused or not yet in normal play.