Summary
Madd House is the house itself: both the structure and the inhabitant are part of the boss fight in Kindlewood.
How the fight goes
This is a good reminder that Mina the Hollower likes to turn a place into a mechanic. Stay alert to the room's architecture and do not treat the arena as static.
Attack patterns
Expect architecture-driven pressure, sudden movement changes, and a fight that benefits from patience more than reckless damage.
Spoils of the fight
Defeating Madd House unlocks Papa Madd's shop.