With the pre-purchase yesterday, a bunch of people (myself included) made use of the free 110 right away for a new alt, and at the moment Nightfallen Emissary is active for EU regions, so a lot of people will want to complete this before it rolls off tonight. The issue is, the game does a bad job of directing you to unlock suramar on a fresh 110, because it's different from any other character to unlock it.Whereas normally, you'd get a quest in Dalaran from Khadgar to go investigate the arcane message and start the chain with Thalyssra, for some reason that never pops up on boosted 110 characters, but the quest is available and required to unlock Suramar quest chain (And to turn in Nightfallen Emissaries).The quest itself is locked behind the Scouting Map inside your order hall, much like how you'd start the Val'Sharah or Highmountain zone story quests. Go to your order hall, open the mission table, and open Scouting Map tab at the bottom, there's a Suramar option