This mob spawns at 1781, -1390, 69 in the room right before Squire Alkaa. Can also be found at 1238,78, -1302.31, 11,48 or third room from entrance, two rooms before the Squire Alkaa's room.
I found this one at: 1238,78, -1302.31, 11,48 or third room from entrance, two rooms before the Squire Alkaa's room. Most likely any 'Captured Elemental' (Fire) is PH.