So quest name is Encroaching Elementals and asks you to get to talk too Warlord Breka Grimaxe, but you need to do Give Peace a Chance from Captain Garrick first before you can get the Encroaching Elementals, which is just missing from the guide. I will have to get up to the next quest before I can give the error. But I know
     it’s just after you learn Dragon Flight.