Burth
This NPC can be found in Dun Morogh (2), Teldrassil (2), Durotar (2), Tirisfal Glades (2), The Barrens (2), Elwynn Forest (2), Eversong Woods (2), Ghostlands (2), Mulgore (1), Darkshore (1), Ashenvale (1), Redridge Mountains (1), Duskwood (1), Loch Modan (1), Dalaran (1), Stormwind City (1), Orgrimmar (1), Undercity (1), Darnassus (1), Ironforge (1), Thunder Bluff (1), Silverpine Forest (1), Westfall (1), Silvermoon City (1), Bloodmyst Isle (1), Azuremyst Isle (1) and The Exodar (1).