We didn't realize the importance of Valthalak's medallion, so it was divided along with the rest of the spoils.  The first piece was taken by a dwarf named Theldren.  I tried to retrieve it from him and he beat me within an inch of my life.  You shall have to take the fragment by force.$B$BLast I heard of him, he'd become a gladiator for the Dark Iron dwarves.  Getting him to fight you is going to present a bit of a challenge, though.$B$BGather the following materials for me.  You're going to need them.