Summary
Mirren is a secret boss encounter tied to the Frostbite Woods and the Mirren NPC storyline.
How the fight goes
Because the fight is connected to a ghostly setup, the page should stay focused on where the encounter appears and what triggers it.
Attack patterns
Expect a haunting, mobility-heavy battle that feels different from a standard field boss.
Spoils of the fight
This is one of the more hidden boss pages in the set and links the fight to Mirren's quest identity.