Mastermind's Lair

Id	BetrayalMastermindFight
Act	11
Area level	83
Bosses	Catarina, Master of Undeath Catarina, Master of Undeath
Area type tags	church

File:Mastermind's Lair area screenshot.jpg

200% increased Experience gain
Minimap is Revealed

Mastermind's Lair is an end-game area where the battle with Catarina, Master of Undeath takes place. You must have reached the endgame and be at least level 68 to enter.

Monsters

Item drops

The following drop-restricted items can drop in this area.

No items include this area in their drop restrictions.

Additionally, defeating Catarina also spawns an altar which allows a character to acquire or change their current Bloodline Ascendancy class to the Catarina Bloodline.

Gallery

Version history

Version	Changes
3.26.0	The Mastermind's Lair cannot be accessed if you have not unlocked the endgame.
3.8.0	Mastermind's Safehouse now has 200% increased Experience from monsters.
3.5.0	Introduced to the game

v t e The World

Act 1	The Twilight Strand Lioneye's Watch The Coast The Tidal Island The Mud Flats The Fetid Pool The Submerged Passage The Flooded Depths The Ledge The Climb The Lower Prison The Upper Prison Prisoner's Gate The Ship Graveyard The Ship Graveyard Cave The Cavern of Wrath The Cavern of Anger

Act 2	The Southern Forest The Forest Encampment The Old Fields The Den The Crossroads The Broken Bridge The Fellshrine Ruins The Crypt Level 1 The Crypt Level 2 The Chamber of Sins Level 1 The Chamber of Sins Level 2 The Riverways The Western Forest The Weaver's Chambers The Wetlands The Vaal Ruins The Northern Forest The Dread Thicket The Caverns The Ancient Pyramid

Act 3	The City of Sarn The Sarn Encampment The Slums The Crematorium The Sewers The Marketplace The Catacombs The Battlefront The Solaris Temple Level 1 The Solaris Temple Level 2 The Eternal Laboratory The Docks The Ebony Barracks The Lunaris Temple Level 1 The Lunaris Temple Level 2 The Imperial Gardens The Library The Archives The Sceptre of God The Upper Sceptre of God

Act 4	The Aqueduct Highgate The Dried Lake The Mines Level 1 The Mines Level 2 The Crystal Veins Kaom's Dream Kaom's Stronghold Daresso's Dream The Grand Arena The Belly of the Beast Level 1 The Belly of the Beast Level 2 The Harvest The Ascent

Act 5	The Slave Pens Overseer's Tower The Control Blocks Oriath Square The Templar Courts The Chamber of Innocence The Torched Courts The Ruined Square The Reliquary The Ossuary The Cathedral Rooftop

Act 6	Lioneye's Watch The Twilight Strand The Coast The Tidal Island The Mud Flats The Karui Fortress The Ridge The Lower Prison Shavronne's Tower Prisoner's Gate The Western Forest The Riverways The Wetlands The Southern Forest The Cavern of Anger The Beacon The Brine King's Reef

Act 7	The Bridge Encampment The Broken Bridge The Crossroads The Fellshrine Ruins The Crypt The Chamber of Sins Level 1 The Chamber of Sins Level 2 Maligaro's Sanctum The Den The Ashen Fields The Northern Forest The Dread Thicket The Causeway The Vaal City The Temple of Decay Level 1 The Temple of Decay Level 2

Act 8	The Sarn Ramparts The Sarn Encampment The Toxic Conduits Doedre's Cesspool The Quay The Grain Gate The Hidden Underbelly The Imperial Fields The Solaris Concourse The Solaris Temple Level 1 The Solaris Temple Level 2 The Harbour Bridge The Grand Promenade The Bath House The High Gardens The Lunaris Concourse The Lunaris Temple Level 1 The Lunaris Temple Level 2

Act 9	The Blood Aqueduct Highgate The Descent The Vastiri Desert The Oasis The Foothills The Boiling Lake The Tunnel The Quarry The Refinery The Belly of the Beast The Rotting Core

Act 10	Oriath Docks The Cathedral Rooftop The Ravaged Square The Control Blocks The Reliquary The Ossuary The Torched Courts The Desecrated Chambers The Canals The Feeding Trough

Epilogue	Karui Shores Normal Maps Unique Maps The Apex of Sacrifice The Alluring Abyss The Shaper's Realm Absence of Value and Meaning Eye of the Storm The Maven's Crucible Absence of Mercy and Empathy Seething Chyme Absence of Symmetry and Harmony Polaric Void Absence of Patience and Wisdom Chayula's Domain Esh's Domain Tul's Domain Uul-Netol's Domain Xoph's Domain Abyssal Depths Domain of Timeless Conflict Lunacy's Watch The Bridge Enraptured The Syndrome Encampment Hysteriagate Oriath Delusion

Other	Hideout Vaal side areas Sarn Arena Trial of Ascendancy The Lord's Labyrinth The Menagerie The Temple of Atzoatl Azurite Mine Syndicate Safehouses Mastermind's Lair The Rogue Harbour The Necropolis The Sacred Grove Kingsmarch

Mastermind's Lair

Contents

Monsters

Item drops

Gallery

Version history

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