The lore-master Fróthi ponders the theft of the dragon-tooth necklace from Erebor.
'No Dwarf of Erebor would do such a thing as steal that necklace. Not a one! But I couldn't vouch for those Stout-axes. Could you?'
You tell Fróthi that you saw Karazgar holding a dragon's tooth.
'Then we know our thief! I am relieved that I need not think poorly of our cousin-dwarves. We know our thief, and how formidable a foe he is, but we do know little of what he is after.'