So I've been going back through the Frostfire story partially for loremaster, partially because I want to know how it ends, partially for the lore. I've been questing up until the point where you report back to Durotan in Frostwall after the Grom'gar questline. I got the sub achieve, which indicates I have done all the zone questlines except the Battle for Thunder Pass. Strangely, Durotan (who according to WoWhead, starts off the final questline) isn't offering any quests, and is just standing at the bonfire. The map isn't showing any exclamation marks pointing me where to go, so what do I do?