Blacknails, a member of the Defias Brotherhood that is mentioned in , is probably the person in charge of the Jangolode Mine or the Gold Coast Quarry (or both), since the Defias Messenger, the carrier of the letter, is walking between the Deadmines and these two places (probably delivering it from Edwin VanCleef to Blacknails).
Not much is currently known about "Blacknails", including what race and of which gender he/she really is.
Who is "Blacknails"?Edit
Blacknails is only mentioned in and nowhere else in the game or the Warcraft Universe. He/she appears to be well-known by VanCleef, trusted with 'coming through' for him while other suppliers have not.
Some speculate that "Blacknails" may be Katrana Prestor, a black dragon with known connections to the Defias Brotherhood, however, it is most likely a nickname given to one of the Defias members located at either the Jangolode Mine or the Gold Coast Quarry.
There is an unused gnoll NPC by the name of "Blacknails", however, and its ID is in the same area as the Defias Messenger (DM has 550, Blacknails has 567), so maybe he was going to be in the game at some point.