Dusty key

The Dusty Key is used to access the deeper parts of the Taverly Dungeon. It provides passage between the Lesser demon area and the Blue dragon area. You can get one from the imprisoned explorer in the Black knight area of the Taverly Dungeon. You have to kill the jailer to get the keys to enter the cell he's in, then talk to him. When you've gone through the door, you can get a new key if you drop yours from the respawn near the lava lake.

This key can be placed on the Steel key ring.