A guide on how to unlock the “Deep Lore” achievement.
How to unlock the achievement
To unlock this achievement you need to talk to Kicry in the North zone during their break, so before or after the last zone quest.
Kicry is the young Kiblin whose quest was to chase after them because they though you were a ghost.
You can find Kicry south-east of the North zone:
You unlock the achievement during the discussion, when they mention your name: