Report back to Rhag Garmason at Dun Modir in Wetlands and show him the parchment you found on Rustlocke's corpse.
It seems as though poor Ol' Rustlocke ran into a Dark Iron ambush. You notice a parchment next to his clenched fist.
Report the grim news to Rhag Garmason and show him what you found.
Any sign of Ol' Rustlocke, <name>?
Oh my, the news is grave....
Upon completion of this quest you will gain: