Hey Devs and DBs,
Sorry to interrupt your closed ticket! The OP was right, I had done this quest till the above map (Stage IX), the quest returned to this NPC then no more continuation for next stage.
Please refer this quest on hammerwiki link http://warhammeronline.wikia.com/wiki/Among_the_Shadows_IX
It should start on Larineth Spearsong, looks like the quest indicator doesn't show up. I'm moving that one back to Liraenor in the next patch, and there's another step later on that's broken too. Fixing the items too.